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https://nardus.mpn.gov.rs/handle/123456789/21583
123456789-21583.pdf
yes
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Утицај режима наводњавања и рока сетве на ефикасност коришћења воде, принос и квалитет зрна пасуља
The Effect of Irrigation Treatments and Sowing Periods on Water Use Efficiency, Yield and Quality of Common Bean
[ "Stričević, Ružica" ]
[ "Đurović, Nevenka", "Ćosić, Marija", "Moravčević, Đorđe", "Bezdan, Atila" ]
Lipovac, Aleksa
2023-09-06T11:02:12
[ "2023-09-06T11:02:12" ]
2023-06-22
[ "https://eteze.bg.ac.rs/application/showtheses?thesesId=9223", "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/5224/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30658/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/121607433", "https://nardus.mpn.gov.rs/handle/123456789/21583" ]
[ "авремено друштво се сусреће са врло озбиљним изазовима у пољопривредној производњи, а везано за све веће захтеве за храном као и недостатком воде у овом сектору. Полазећи од ових чињеница, истраживање које је описано у овој дисертације је првенствено посвећено рационалном коришћењу водних ресурса и проналажењу начина како повећати производњу хране. Циљ ове докторске дисертације био је да се испита утицај режима наводњавања и рока сетве на ефикасност коришћења воде, принос и квалитет зрна пасуља. Истраживање је вршено на пасуљу сорте сремац. Постављен је двофакторијални оглед по split plot плану (плану подељених парцела) у три понављања. Први фактор (парцела) био је рок сетве: сетва у редовном року, половином априла (I) и две касне сетве (крај маја/почетак јуна (II) и крај јуна/почетак јула (III)). Други фактор (подпарцела) био је режим наводњавања (третман пуног наводњавања (Ф) и два третмана редукованог наводњавања (Д1 и Д2)). Трогодишње истраживање у периоду од половине априла до почетка октобра (2018, 2019. и 2020. године) извршено је на огледном пољу компаније „Напредак“ а. д. Стара Пазова. Све три године биле су веома топле, али истовремено и веома кишне. Сума падавина током истраживаног периода варирала је од 590 mm (2019) до 434 mm (2020) године, што је далеко изнад просечне вредности за овај период која износи 359 mm. У оквиру испитиваних фактора (рок сетве и режим наводњавања) праћена је фенологија пасуља, влажност земљишта, покровност земљишта, акумулација суве биомасе, индекс лисне површине, потрошња воде пасуља, стање вегетације и снабдевеност водом, принос пасуља, принос суве биомасе, број махуна по биљци, маса 1000 зрна, жетвени индекс, хемијске особине зрна пасуља (садржај протеина и уља), као и продуктивност воде и ефикасност коришћења воде. У раду су, поред осталих, примењене савремене методе даљинске детекције (мултиспектрални и термални снимци). Највеће вредности садржаја воде у земљишту регистроване су у оквиру Ф третмана у свим испитиваним роковима сетве, и овај садржај воде није се спуштао испод границе лако приступачне воде биљкама, изузев током сазревања. Режим пуног наводњавања (Ф) остварио је значајно већу (p<0,05) акумулацију биомасе и проценат покровности земљишта у поређењу са Д2 третманом, док се третман Д1 није значајно разликовао. Режим наводњавања и рокови сетве испољили су статистичку значајност на промену вредности стварне евапотранспирације. Утврђена је разлика у просечним вредностима стварне евапотранспирације између третмана наводњавања и између појединих рокова сетви. У трогодишњем периоду у првом року сетве у просеку је трошено 383,4 mm, у другом 407,9 mm а у трећем 360,0 mm. На варијанти са пуним наводњавањем у просеку је потрошено 401,7 mm, док је потрошња воде на третманима редукованог заливања мања у односу на Ф третмане (383,1 mm и 366,9 mm на третманима Д1 и Д2, редом). Израчунати вегетациони индекси (NDVI - вегетациони индекс нормализоване разлике; GNDVI - зелени вегетациони индекс нормализоване разлике; MCARI1 - модификовани индекс абсорпције хлорофила у рефлексији) добијени су на основу мултиспектралних снимака беспилотном летелицом (дроном). Вредности NDVI, MCARI1 и GNDVI су статистички значајно више у Ф третману него на третманима редукованог наводњавања. Вегетациони индекси NDVI, MCARI1, и GNDVI били су у доброј до јакој корелацији са величинама на које утиче режим наводњавања: покривеношћу, индексом лисне површине и транспирацијом, али и у задовољавајућој корелацији са вредностима влажности земљишта..." ]
[ "Modern society is facing serious challenges in agricultural production related to increasing food demand and water scarcity. Based on these facts, the research described in this dissertation is primarily dedicated to the rational use of water resources and finding ways to ramp up food production. The aim of this doctoral dissertation was to examine the impact of irrigation regimes and sowing periods on water use efficiency, yield, and grain quality of beans, specifically the sremac bean variety. The research was conducted in a two-factorial trial using a split-plot design divided into three repetitions. The first factor (plot) was the sowing period, including sowing in the regular term, mid-April (I) and two late sowings (end of May/beginning of June (II) and end of June/beginning of July (III)). The second factor (subplot) was the irrigation regime, which included full irrigation treatment (F) and two deficit irrigation treatments (D1 and D2). The three-year study was conducted from mid-April to early October (2018, 2019, 2020) on the experimental field of the company \"Napredak\" a.d. Stara Pazova. All three years were warm and rainy, with total precipitation during the study period ranging from 590 mm (2019) to 434 mm (2020), which is well above the average value of 359 mm for this period. Within the framework of the examined factors (sowing period and irrigation regime), the following aspects were monitored: phenology of beans, soil moisture, canopy cover, dry biomass accumulation, leaf area index, water consumption of common bean, plant health and water status, grain yield, dry biomass yield, number of pods per plant, 1000-grain weight, harvest index, chemical properties of bean grains (protein and oil content), and water productivity and water use efficiency. The research also applied modern remote sensing methods, including multispectral and thermal images. The highest soil moisture was observed in the F treatment (full irrigation) during all three sowing periods and water content did not drop below the readily avaliable water level, except during maturation. The full irrigation regime (F) achieved significantly higher (p<0.05) biomass accumulation and canopy cover compared to the D2 treatment, while the D1 did not differ significantly. The effect of the irrigation regime and sowing period was statistically significant in changing the values of actual evapotranspiration. The difference in average values of actual evapotranspiration between irrigation treatments and between sowing periods was determined. In the three-year period, an average of 383.4 mm was spent in the first sowing period, 407.9 mm in the second, and 360.0 mm in the third. In the full irrigation treatment, an average of 401.7 mm was consumed, while water consumption in deficit irrigation treatments was lower compared to the F treatment (381.1 mm and 366.9 mm in the D1 and D2 treatments, respectively) Calculated vegetation indices (NDVI - normalized difference vegetation index, GNDVI - green normalized difference vegetation index, and MCARI1 - modified chlorophyll absorption ratio index at 700 nm) were obtained from multispectral images taken by an unmanned aerial vehicle (drone). The values of NDVI, MCARI1 and GNDVI were significantly higher in the F treatment than in the deficit irrigation treatments. Vegetation indices NDVI, MCARI1, and GNDVI were in good to strong correlation with the variables affected by the irrigation regime: canopy cover, leaf area index and transpiration, as well as satisfactory correlation with soil moisture values. The high correlations of the NDVI, MCARI1 and GNDVI indices with the detection of differences in irrigation regimes qualify them as a reliable tools for estimating bean yields..." ]
application/pdf
sr
Универзитет у Београду, Пољопривредни факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "пасуљ", "рок сетве", "режим наводњавања", "квалитет и принос", "даљинска детекција", "продуктивност воде" ]
[ "common bean", "sowing period", "irrigation regime", "yield and quality", "remote sensing", "water productivity" ]
[ "Утицај режима наводњавања и рока сетве на ефикасност коришћења воде, принос и квалитет зрна пасуља" ]
[ "The Effect of Irrigation Treatments and Sowing Periods on Water Use Efficiency, Yield and Quality of Common Bean" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151667/Disertacija_13684.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152444/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30658/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21583" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21692
123456789-21692.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1618/bdef:Content/download
no
Primena metode obrnute učionice prilikom usvajanja glagolskih vremena u nastavi engleskog jezika kao stranog
Application of the flipped classroom method and teaching tenses in English as a foreign language
[ "Milenković, Branka" ]
[ "Josifović Elezović, Sanja", "Karavesović, Dejan", "Radosavljević Krsmanović, Anica" ]
Todorović, Milan
2023-09-06T12:19:50
[ "2023-09-06T12:19:50" ]
2022
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8659", "https://fedorakg.kg.ac.rs/fedora/get/o:1618/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21692" ]
[ "Razvoj informacionih tehnologija neminovno je uticao na oblast obrazovanja, a savremene nastavne metode, poput obrnute učionice, koriste njihov potencijal. Dosadašnja nastavna praksa u Srbiji pretežno je tradicionalna: nastavnici su izvor znanja koji donose odluke o nastavnom procesu, učenici pasivno upijaju znanje, škola je obaveza, plan i program određuju spoljni kriterijumi, i sl. (Dar 2017: 680–681). Shodno tome, u Srbiji izostaje implementacija savremenih tekovina u nastavi stranog jezika gde su nastavnici moderatori i vodiči, učenici su aktivni učesnici i organizatori nastave, a plan i program se određuju na osnovu ciljeva koje učenici žele da ostvare, uspeh se procenjuje putem primene znanja, i sl. (Dar 2017: 681–682). Predmet našeg istraživanja jeste primena metode obrnute učionice u nastavi engleskog jezika kroz glagolska vremena (Past Simple, Past Progressive i Present Perfect Simple), u okvirima srednješkolskog obrazovanja u Srbiji. U istraživanju smo primenili eksperimentalnu metodu i metodu testiranja postignuća učenika nakon nastavnog ciklusa. Komplementarno, uključili smo intervju predmetnog nastavnika i anketni upitnik učenika kako bismo postigli trijangulaciju istraživačkog postupka i obezbedili validnost dobijenih rezultata. Kvantitativnom i kvalitativnom analizom imali smo uvid u statističke podatke i kvalitativne sadržaje koji su nam dodatno omogućili tumačenje dobijenih rezultata. Dobijeni rezultati ukazuju na mogućnost pozitivnog uticaja obrnute učionice na retenciju informacija kod učenika, na reorganizaciji vremena u procesu učenja i na inovativan oblik rada putem multimedijalnih sredstava. Stoga, istraživanje metode obrnute učionice znatno doprinosi širenju saznanja o novom obliku kombinovanog učenja i pruža uvid u pedagoške implikacije nastavne prakse u Srbiji." ]
[ "The development of information technology has had an influence on the education, and the current teaching method of the flipped classroom has utilized its potential. The current teaching praxis in Serbia is mostly traditional: teachers are a source of knowledge who make decisions about the teaching process, students gain knowledge passively, school is mandatory, the curriculum is determined by external criteria, etc. (Dar 2017: 680–681). Thus, contemporary teaching praxis is lacking in the foreign language classroom where the teacher is a moderator and a guide, the students are active participants, involved in the learning process, the curriculum is based around the student goals, etc. (Dar 2017: 681–682). The subject of our research is the implementation of the flipped classroom method when teaching English tenses (Past Simple, Past Progressive and Present Perfect Simple) in the Serbian high school education. The following methods have been employed in our research: experimental method and the achievement test, an interview with the school teacher and a survey with the students so as to achieve the triangulation within our research and confirm the validity of the acquired results. Using quantitative and qualitative methods of analysis we gained an insight into the statistical data and the qualitative content which aided us in interpreting the results. The results indicate that the flipped classroom method can positively influence the students’ retention, the reorganization of the time in the learning process, and can incorporate multimedia sources. Therefore, research into the flipped classroom model contributes to the spread of knowledge about the new method of blended learning and provides an insight into the pedagogical implications of the teaching praxis in Serbia." ]
application/pdf
sr
Универзитет у Крагујевцу, Филолошко-уметнички факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Крагујевцу
[ "engleski jezik kao strani", "savremena nastava", "kombinovano učenje", "metoda obrnute učionice", "glagolska vremena", "Past Simple", "Past Progressive", "Present Perfect", "angažovanost učenika i motivacija" ]
[ "English as a foreign language", "teaching methodology", "blended learning", "flipped classroom", "tenses", "Past Simple", "Past Progressive", "Present Perfect", "education", "applied linguistics" ]
[ "Primena metode obrnute učionice prilikom usvajanja glagolskih vremena u nastavi engleskog jezika kao stranog" ]
[ "Application of the flipped classroom method and teaching tenses in English as a foreign language" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151843/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1618/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21692" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21644
123456789-21644.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1559/bdef:Content/download
no
Sinteza, karakterizacija i ispitivanje biološke aktivnosti kompleksa bakra(II) sa S,O-tetradentatnim ligandima, derivatima tiosalicilne kiseline
Synthesis, characterization and examination of biological activity of copper(II) complexes with S,O-tetradentate ligands, derivatives of thiosalicylic acid
[ "Bukonjić, Andriana" ]
[ "Radić, Gordana", "Poljarević, Jelena", "Mijajlović, Marina" ]
Živanović, Ana S.
2023-09-06T12:18:36
[ "2023-09-06T12:18:36" ]
2022
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8603", "https://fedorakg.kg.ac.rs/fedora/get/o:1559/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21644" ]
[ "Uvod: Terapijska primena kompleksa bakra(II) privlači pažnju istraživača zbog mogućnosti koordinovanja sa različitim donorskim atomima. Među liganadima koji u strukturi sadrže sumpor i kiseonik izdvaja se tiosalicilna kiselina, čiji derivati pokazuju citotoksičnost u terapiji tumora. Materijal i metode: U ovoj Doktorskoj disertaciji opisani su sinteza S,O tetradentatnih liganada, derivata tiosalicilne kiseline i kompleksa bakra(II) sa navedenim ligandima. Radi potvrde njihove strukture, sprovedena su različita merenja: mikroanaliza, infracrvena spektroskopija, nuklearno-magnetno-rezonanciona spektroskopija, elektronska paramagnetna rezonancija i molarna provodljivost. U cilju procene biološke aktivnosti sprovedene su nukleofilne supstitucione reakcije kompleksa sa endogenim ligandima (L-metioninom, L-cisteinom i 5’-GMP), in vitro interakcije sa ST-DNK (eng. calf thymus, DNK timusa govečeta) i humanim serumskim albuminom (HSA) pomoću apsorpcione spektroskopske analize i emisione fluorescencije, in silico interakcije sa DNK i HSA. Takođe, primenom MTT kolorimetrijskog testa analizirana je citotoksičnost sintetisanih liganada i kompleksa na tri ćelijske linije. Rezultati: Analizom sprovedenih merenja pretpostavljena je oktaedarska geometrija kompleksa. Svi kompleksi podležu reakcijama nukleofilne supstitucije. Visoke vrednosti konstante vezivanja pokazuju da kompleksi interaguju sa molekulom DNK i HSA. Interakcija sa DNK molekulom dešava se interkalacijom ili interakcijom sa malim žlebom. Kompleksi imaju citotoksični potencijal, dok je prema svim ćelijskim linijama najbolju citotoksičnost na osnovu IC50 vrednosti pokazao kompleks [Cu(S,O-pentilen-tiosalicilna kiselina)]." ]
[ "Introduction: The therapeutic application of copper(II)-complexes attracts the attention of researchers due to the possibility of coordination with different donor atoms. Among the ligands that contain sulfur and oxygen in the structure, thiosalicylic acid stands out, whose derivatives show cytotoxicity in tumor therapy. Material and methods: In this Doctoral dissertation, the synthesis of S,O-tetradentate ligands, derivatives of thiosalicylic acid and copper(II)-complexes with the mentioned ligands is described. In order to confirm their structure, various measurements were performed: microanalysis, infrared spectroscopy, nuclear magnetic resonance spectroscopy, electronic paramagnetic resonance and molar conductivity. In order to assess biological activity, nucleophilic substitution reactions of complexes with endogenous ligands (L-methionine, Lcysteine and 5'-GMP), in vitro interactions with ct-DNA (calf thymus DNA) and human serum albumin (HSA) were performed by absorption spectroscopic analysis and emission fluorescence, in silico interactions with DNA and HSA. Also, the cytotoxicity of synthesized ligands and complexes on three cell lines was analyzed using MTT colorimetric test. Results: The octahedral geometry of the complex was assumed by the analysis of the performed measurements. All complexes react to nucleophiles. High values of the binding constant indicate that the complexes interact with the DNA molecule and HSA. Interaction with a DNA molecule occurs by intercalation or interaction with a small groove. The complexes have cytotoxic potential, while the [Cu (S,O-pentylene-thiosalicylic acid)] complex showed the best cytotoxicity based on IC50 values according to all cell lines. Keywords: S,O-tetradentate ligands, copper(II) complexes, interactions, molecular docking, antitumor activity" ]
application/pdf
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Универзитет у Крагујевцу, Факултет медицинских наука
[ "" ]
[ "openAccess" ]
[ "" ]
Универзитет у Крагујевцу
[ "S", "O-tetradentatni ligandi", "kompleksi bakra(II)", "interakcije", "molekulski doking", "antitumorska aktivnost" ]
[ "S", "O-tetradentate ligands", "copper(II) complexes", "interactions", "molecular docking", "antitumor activity" ]
[ "Sinteza, karakterizacija i ispitivanje biološke aktivnosti kompleksa bakra(II) sa S,O-tetradentatnim ligandima, derivatima tiosalicilne kiseline" ]
[ "Synthesis, characterization and examination of biological activity of copper(II) complexes with S,O-tetradentate ligands, derivatives of thiosalicylic acid" ]
doctoralThesis
[ "" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151890/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1559/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21644" ]
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https://nardus.mpn.gov.rs/handle/123456789/21690
123456789-21690.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1616/bdef:Content/download
no
Jezik i stil u dramama Ljubomira Simovića ‒ tekstualnolingvistički aspekti
Language and Style in Ljubomir Simović’s Plays ‒ Textual and Linguistic Aspects
[ "Jovanović Simić, Jelena" ]
[ "Petković, Jelena", "Nikolić, Milka", "Janjušević-Oliveri, Ana M." ]
Mimović, Milica
2023-09-06T12:19:49
[ "2023-09-06T12:19:49" ]
2023
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8657", "https://fedorakg.kg.ac.rs/fedora/get/o:1616/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21690" ]
[ "Osnovni predmet ovog rada jeste ispitivanje ključnih tekstualnolingvističkih osobina dramskog diskursa Ljubomira Simovića u njegovim četirma dramama. Međutim, dramski tekst se kao podstil književnoumetničkog stila odlikuje dijalogičnošću, odnosno najvišim stepenom konverzacije, pa se samim tim neminovno nameće i ispitivanje pragmatičkih aspekata dramskog diskursa. Cilj ovoga istraživanja jeste da se pomoću metoda deskripcije, analize i na kraju sinteze, osvetli sa lingvističkog stanovišta ovaj književnoumetnički žanr, nepravedno zapostavljen među ostalim žanrovima. Kao posebni ciljevi mogu se izdvojiti utvrđivanje stilističke, pragmatičke i verbatološke uloge kohezivnih sredstava u olakšavanju recepcije teksta, sa posebnim osvrtom na figure ponavljanja kada su u službi (a) isticanja određenih delova teksta, (b) žanrovskog dokazivanja dominacije tzv. dijaloga konflikta, (v) utvrđivanja stepena odstupanja od principa tzv. ekvivalentne kooperativnosti, (g) identifikovanja i opisivanja intertekstualnih elemenata iz narodne poezije, i, s tim u vezi, (d) određivanja komunikativne dominante kao socijalno determinisane moći, obeležene rodnom (ne)ravnopravnošću. Doktorska disertacija sadrži devet poglavlja. U prvom, uvodnom poglavlju, nalaze se predmet i zadaci istaživanja, ali i postavljene hipoteze i metodologija istraživanja. Drugo poglavlje čini teorijsko definisanje osnovnih pojmova, koje uključuje predstavljanje razvoja tekstualne lingvistike uz pregled srbističke i hrvatske literature o tekstu, a na samom kraju ovog poglavlja date su definicije ključnih pojmova: tekst, kontekst, diskurs – onako kako su ih razumeli eminentni lingvisti, i kao su zabeleženi u relevantnim lingvističkim rečnicima. Na ovu pomenutu teorijsku podlogu rada, nadovezuje se metodološki i terminološki značajno i pregled tekstualnolingvističkih radova o drami kao žanru. Narednih pet poglavlja posvećeno je ispitivanju kompozicije teksta drame, njegove stilističke i iskazne strukture, a u trećem poglavlju se posebno razmatra tematska struktura i motivski kompleksi koji izgrađuju fabulu drame i njen smisao. Na ovome mestu otvara se rasprava o naslovima, makrotemama i mikrotemama, kao i o tematskoj progresiji. Četvrto poglavlje predstavlja analizu dominantnih kohezivnih mehanizama u izabranom korpusu, dok peto obrađuje strukturu dijaloga i monologa u četirma dramama Ljubomira Simovića. U šestom poglavlju analiziraju se didaskalije u dramama, a u sedmom poglavlju intertekstualnost, tj. intertekstualni elementi pozajmljeni iz narodne poezije. Osmo poglavlje čini analiza pomenutih drama s pragmatičkog aspekata, tj. i sa lingvističkih i komunikativnih pozicija opisa jezičkih funkcija, govornih činova, načela kooperativnosti, strategija učtivosti i odnosa moći u dijalogu. Deveto poglavlje čini Zaključak o integrativnim i kumulativnim rezultatima analitičko-istraživačkog i teorijsko-metodološkog postupka." ]
[ "The main subject matter of this paper is the investigation of crucial textual and linguistic features of the dramatic discourse in the four plays written by Ljubomir Simović. However, the dramatic text as the substyle of the literary and artistic style is characterized by dialogicity, i.e. the highest level of conversation, therefore the issue of examining pragmatic aspects of the dramatic discourse is also inevitably imposed. The objective of the research was to analyze this literary and artistic genre from the linguistic aspect by means of the methods of description, analysis and synthesis, which has been unfairly neglected among other genres. Particular objectives were to determine stylistic, pragmatic and verbatological role of cohesive devices for facilitating the reception of the text, with special emphasis on the stylistic devices of repetition when they are used for (a) highlighting certain parts of the text, (b) genre establishing of the domination of the so-called dialogue of conflict, (c) determining the level of the retreat from the principle of the so-called equivalent cooperativity, (d) identification and description of the intertextual elements from the folk poetry, and, accordingly, for (e) determining the communicative dominant as the socially determined power, marked by gender (in)equality. This PhD thesis consists of nine chapters. The first one, introduction, comprises the research subject and tasks, as well as hypotheses and research methodology. The second one provides theoretical defining of the main concepts, then introduces the development of textual linguistics and, finally, provides the review of Serbian and Croatian references concerning the text, while at the very ending of this chapter there are definitions of the crucial concepts such as: text, context, discourse – the way eminent linguists considered them, and how they were recorded in relevant linguistic dictionaries. In addition, the already mentioned theoretical basis of the paper is methodologically and terminologically followed by the review of the textual and linguistic papers that consider drama as a genre. The following five chapters examine the composition of the dramatic text, its stylistic and statement structure, while in the third chapter thematic structure and motif complexes of the drama plot and its sense are particularly considered. Moreover, there is the discussion of the titles, macro topics and micro topics, as well as of the thematic progression. The fourth chapter provides the analysis of dominant cohesive mechanisms in the selected corpus, while the fifth one considers the structure of the dialogues and monologues in the four plays written by Ljubomir Simović. Then, stage directions are analyzed in the sixth chapter, while intertextuality, i.e. intertextual elements that are borrowed from the folk poetry, are analyzed in the seventh one. The eighth chapter refers to the analysis of the previously mentioned plays from the pragmatic aspect, i.e. from the linguistic and communicative positions of the description of linguistic functions, speech acts, the principle of cooperativity, strategies of politeness and the power relationships in the dialogue. The ninth chapter is the Conclusion regarding the integrative and cumulative results of the analytical-research and theoretical-methodological procedure." ]
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Универзитет у Крагујевцу, Филолошко-уметнички факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Крагујевцу
[ "tekstualnolingvistički aspekti", "pragmatički aspekti", "drama", "Ljubomir Simović", "stilistika", "pragmatika", "intertekstualnost" ]
[ "textual and linguistic aspects", "pragmatic aspects", "play", "Ljubomir Simović", "stylistics", "pragmatics", "intertextuality" ]
[ "Jezik i stil u dramama Ljubomira Simovića ‒ tekstualnolingvistički aspekti" ]
[ "Language and Style in Ljubomir Simović’s Plays ‒ Textual and Linguistic Aspects" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151844/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1616/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21690" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/21643
123456789-21643.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1552/bdef:Content/download
no
Uticaj oblika i morfometrijskih karakteristika nazopalatinalnog kanala na terapijski pristup kod ortodontskih intervencija povezanih sa pomeranjem zuba
ǂThe ǂimpact of the nasopalatinal canal shape and morphometric characteristics on the therapeutic approach for orthodontic interventions accompanied with the teeth movement
[ "Rosić, Gvozden" ]
[ "Selaković, Dragica", "Ristić, Vladimir", "Bubalo, Marija" ]
Arnaut, Aleksandra
2023-09-06T12:18:35
[ "2023-09-06T12:18:35" ]
2022
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8596", "https://fedorakg.kg.ac.rs/fedora/get/o:1552/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21643" ]
[ "Uvod: Ortodontska pomeranja u regiji prednje maksile zahtevaju poznavanje morfoloških i morfometrijskih karakteristika nazopalatinalnog kanala, kao i njegovog odnosa sa centralnim sekutićima. Detaljniju analizu ove regije omogućila je primena kompijuterizovane tomografije konusnog snopa (SVST). Cilj: Cilj ove studije je da ukaže na povezanost oblika i dimenzija nazopalatinalnog kanala sa maksilarnim centralnim sekutićima, što može pružiti smernice pri planiranju ortodontskog pomeranja zuba. Materijal i metode: Retrospektivna, kvantitativna studija je uključila 133 SVST snimka. Analiza snimaka je podrazumevala ispitivanje nazopalatinalnog kanala na sagitalniom i aksijalnom preseku. Rezultati: Oblik nazopalatinalnog kanala značajno utiče na definisanje anatomskih okvira premasile u kojima dolazi do pomeranja zuba nakon ortodontskih intervencija. Povećanje pojedinih dijametara kod levkastog oblika nazopalatinalnog kanala može biti faktor rizika kod intervencija koje uključuju pomeranje zuba. Zaključak: Predloženi metodološki pristup analize SVST snimaka prednje maksile omogućava preliminarnu orijentaciju i definisanje isključujućih kriterijuma u cilju izbegavanja komplikacija ortodontskih intervencija." ]
[ "Introduction: Orthodontic teeth movements in premaxillary region assume knowledge of nasopalatine canal morphological and morphometric characteristic, and their relationship with central incisors. Detailed analysis of this region has been enabled by using Come Beam Computed Tomography (СВСТ). Aim: The aim of this study was to point the interconnection between the shape and the nasopalatine canal dimensions with central maxillary incisors, which can allow the directions in planning the orthodontic teeth movement. Material and methods: Retrospective quantitative study included 133 CBCT images. The analyses included the examination of nasopalatine canal on the sagittal and axial view. Results: The nasopalatine canal shape significantly influences the anatomical framework of premaxillary bone in which orthodontic teeth movement following interventions occurs. The enhancement of some diameters in funnel type of nasopalatine canal may be the risk factor in interventions that involve teeth movement. Conclusion: The proposed methodological approach for CBCT images analysis of premaxillary region allows preliminary orientation and defining the excluded criteria in order to avoid orthodontic interventions side effects." ]
application/pdf
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Универзитет у Крагујевцу, Факултет медицинских наука
[ "" ]
[ "openAccess" ]
[ "" ]
Универзитет у Крагујевцу
[ "nazopalatinalni kanal", "SVST", "morfometrijske analize", "pomeranje zuba", "maksilarni centralni sekutići" ]
[ "Key words: nasopalatine canal", "СВСТ", "morphometric analyses", "teeth movement", "maxillary central incisors" ]
[ "Uticaj oblika i morfometrijskih karakteristika nazopalatinalnog kanala na terapijski pristup kod ortodontskih intervencija povezanih sa pomeranjem zuba" ]
[ "ǂThe ǂimpact of the nasopalatinal canal shape and morphometric characteristics on the therapeutic approach for orthodontic interventions accompanied with the teeth movement" ]
doctoralThesis
[ "" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151891/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1552/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21643" ]
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https://nardus.mpn.gov.rs/handle/123456789/21540
123456789-21540.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30608/bdef:Content/download
no
Diverzitet i genetička varijabilnost familije Simuliidae (Insecta: Diptera) na području Balkanskog poluostrva.
Diversity and genetic variability of the Simuliidae family (Insecta: Diptera) in the area of the Balkan peninsula
[ "Živić, Ivana" ]
[ "Popović, Nataša", "Stojanović, Katarina", "Jovanović, Vladimir M.", "Marinković, Nikola" ]
Đuknić, Jelena
2023-09-06T10:57:58
[ "2023-09-06T10:57:58" ]
2023-05-17
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/5204/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9208", "https://fedorabg.bg.ac.rs/fedora/get/o:30608/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/115620617", "https://nardus.mpn.gov.rs/handle/123456789/21540" ]
[ "Na području Balkanskog poluostrva, u periodu od 2013-2021. godine identifikovano je 46 taksona simulida (larvi i lutaka) sa 256 lokaliteta. Dominantna vrsta bila je Simulium ornatum, a pratile su je S. reptans, S. variegatum i S. balcanicum. Vrsta S. turgaicum je prvi put zabeležena na Balkanskom poluostvu. Većina zabeleženih vrsta se pokazala eurivalentna u odnosu na nadmorsku visinu i tip vodotoka. Prosimulium hirtipes je karaktrističen za male, brze vodotokove, dok je S. brevidens je krenobiont vezan za nadmorske visine preko 800 m. Najveći diverzitet simulida zabeležen je u malim i srednjim vodotocima na nadmorskim visinama 500–800 m. Sve ispitivane grupe zajednica simulida karakterisao je visok beta diverzitet. Genetičkim analizama (mtCOI gena) podroda Wilhelmia, koji je bio predstavljen sa 7 vrsta, otkriveno je prisustvo 15 monofiletskih klada (potencijalnih vrsta). U okviru podroda Wilhelmia izdvojene su dve monofiletske grane: equinum granu čine morfo-vrste S. equinum i S. pseudequinum, dok lineatum granu čine S. sergenti, S. paraequinum, S. lineatum, S. turgaicum i S. balcanicum. Razdvajanje klada morfo-vrste S. pseudequinum desilo se u oligocenu, najverovatnije alopatričkom specijacijom. Pretpostavljamo da je klada S. pseudequinum B endemit Balkanskog poluostrva. U okviru lineatum linije, sestrinske vrste S. lineatum, S. turgaicum i S. balcanicum bile su prisutne sa po dve klade. Filogenetske analize vrsta S. reptans i S. reptantoides pokazale su prisustvo dve forme (A i B) kod svake od njih. Distribucija S. reptans A ograničena je na zapadnu i severnu Evropu, dok je S. reptans B zabeležen na Balkanu. Obe forme S. reptantoides prisutne su na Balkanu, koji ujedno može da predstavlja i mesto porekla A forme." ]
[ "During period from 2013 to 2021 from 256 localities at the Balkan Peninsula, 46 simulids taxa (larvae and pupae) were identified. The dominant species was Simulium ornatum, followed by S. reptans, S. variegatum and S. balcanicum. Presence of Simulium turgaicum in the Balkan Peninsula was recorded for the first time. Most of the recorded species were euryvalent with respect to elevation and water body type. Prosimulium hirtipes was characteristic for small rivers, while S. brevidens was a crenobiont found at elevations above 800 m. The greatest diversity of simulids was found in small and medium water bodies at elevations of 500-800 m. High beta diversity characterized all studied groups of simulid communities. Genetic analyses (mtCOI gene) of the subgenus Wilhelmia, whereby it was represented by 7 species, revealed the presence of 15 monophyletic clades (potential species). Within the subgenus Wilhelmia, two monophyletic branches can be distinguished: the equinum branch consists of the morphospecies S. equinum and S. pseudequinum, while the lineatum branch consists of S. sergenti, S. paraequinum, S. lineatum, S. turgaicum, and S. balcanicum. Within morphospecies S. pseudequinum clades diversification occurred in the Oligocene, most likely by allopatric speciation. We assume that the clade S. pseudequinum B is endemic to the Balkan Peninsula. Within the lineatum line, the sister species S. lineatum, S. turgaicum, and S. balcanicum were represented by two clades each. Phylogenetic analyzes of the species S. reptans and S. reptantoides revealed the presence of two forms (A and B) in each of them. The distribution of S. reptans A is restricted to western and northern Europe, while S. reptans B has been found in the Balkans. Both forms of S. reptantoides occur in the Balkans, which could also be the place of origin of the form A." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-sa/4.0/" ]
Универзитет у Београду
[ "Simuliidae", "Balkansko poluostrvo", "diverzitet", "genetička varijabilnost", "filogenija", "COI", "Wilhelmia", "Simulium reptans", "Simulium reptantoides" ]
[ "imuliidae", "Balkan Peninsula", "diversity", "genetic variability", "phylogeny", "COI", "Wilhelmia", "Simulium reptans", "Simulium reptantoides" ]
[ "Diverzitet i genetička varijabilnost familije Simuliidae (Insecta: Diptera) na području Balkanskog poluostrva." ]
[ "Diversity and genetic variability of the Simuliidae family (Insecta: Diptera) in the area of the Balkan peninsula" ]
doctoralThesis
[ "BY-NC-SA" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151540/Disertacija_13669.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152446/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30608/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21540" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/21689
123456789-21689.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1578/bdef:Content/download
no
Mikrobiota autohtonog fermentisanog proizvoda sjenička ovčija stelja
Microbiota of autochthonous fermented product Sjenica sheepʼs ham
[ "Grujović, Мirjana Ž." ]
[ "Mladenović, Katarina", "Tomović, Vladimir M.", "Stefanović, Olgica", "Joković, Nataša" ]
Žugić-Petrović, Tanja
2023-09-06T12:19:48
[ "2023-09-06T12:19:48" ]
2022
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8619", "https://fedorakg.kg.ac.rs/fedora/get/o:1578/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21689" ]
[ "Sjenička ovčija stelja je autohtoni fermentisani proizvod od ovčijeg mesa koji se tradicionalno proizvodi u seoskim domaćinstvima na teritorijama opština Sjenica i Tutin. Proizvod se priprema prema jedinstvenoj recepturi i tehnologiji, od iskošćenih i oblikovanih ovčijih trupova autohtone rase ovaca sjenička pramenka koje su gajene na sjeničko-pešterskoj visoravni, bez dodataka starter kultura i aditiva. Za potrebe eksperimenta je korišćena sjenička ovčija stelja proizvedena u izabranim domaćinstvima sela Blato (A), Krajinoviće (B) i Rasno (V) sa područja Peštera u tri proizvodne sezone (2016/17 - 1; 2017/18 - 2; 2018/19 - 3), krajem jesenjeg i početkom prolećnog perioda, u toku 120 dana zrenja. U doktorskoj disertaciji definisani su parametri kvaliteta sjeničke očije stelje kroz ispitivanje hemijskog sastava i senzornih karakteristika proizvoda kao i kroz ispitivanje autohtone mikrobiote proizvoda i poređenje svih parametara kroz različite sezone, periode zrenja i domaćinstva. Ispitivanje sastava mikrobiote autohtonog proizvoda sjenička ovčija stelja je podrazumevalo ispitivanje prisustva i brojnosti aerobnih mezofilnih bakterija, bakterija mlečne kiseline (BMK), koagulaza-negativnih stafilokoka (KNS), bakterija iz familija Enterobacteriaceae i Pseudomonadaceae, vrsta iz roda Salmonella i Listeria monocytogenes kao i plesni. Identifikacija BMK i KNS je izvršena korišćenjem biohemijskih testova i MALDI-TOF masene spektrofotometrije. Izolacija plesni je izršena na Dihloran 18% glicerol agaru (DG18) sa površine uzoraka ovčije stelje, dok je identifikacija sprovedena prema ključevima za determinaciju. Ispitane su tehnološke osobine izolata BMK, KNS i plesni. Antimikrobni potencijal izolata BMK i KNS u odnosu na rast Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922, Listeria monocytogenes ATCC 19115, Pseudomonas aeruginosa ATCC 27853 i Bacillus cereus ATCC 14579 je ispitan metodom difuzije iz bunarića. Izolati sa najboljim antimikrobnim potencijalom su odabrani za analizu uticaja enzima, pH, temperature i hemijskih jedinjenja na antimikrobnu aktivnost poluprečišćenih bakteriocina i kinetike rasta i biosinteze antimikrobnih jedinjenja. Za procenu probiotskog potencijala, odabrano je 42 BMK izolata. Izolati su ispitani na sposobnost tolerancije na uslove GIT-a (tolerancija na nisku pH, prisustvo pepsina, pankreatina i žučnih soli, prisustvo fenola), hidrofobnost, sposobnost autoagregacije i koagregacije i urađena je bezbednosna procena izolata kroz ispitivanje sposobnosti hemolize na krvnom agaru i rezistencije na antibiotike. Hemijskom analizom sjeničke ovčije stelje utrđeno je da uzorci ispunjavaju zahteve koji definišu propisi o kvalitetu proizvoda od mesa, kao i elaborata o zaštiti geografskog porekla sjenička očija stelja u pogledu sadržaja vode, masti, proteina mesa, soli i pepela. Promene pH vrednosti tokom tehnološkog procesa su odgovarale vrsti proizvoda. Na kraju zrenja pH vrednosti su se kretale u intervalima od 5,15 do 5,6, što ukazuje na odgovarajuću zrelost proizvoda. Tokom zrenja sjeničke ovčije stelje došlo je do promene aw vrednosti u proizvodu koje su ukazivale na mikrobiološku stabilnost tradicionalnog proivoda. Senzornom analizom nisu zabeležena oštećenja, mrlje i diskoloracije proizvoda, pri čemu je istaknuta specifičnost proizvoda po svim istraživanim senzornim parametima Rezultati ispitivanja mikrobiote istakli su dominaciju BMK, koje je pratilo prisustvo KNS i plesni. Prisusto bakterija iz familije Enterobacteriaceae i Pseudomonadaceae je potrđeno u toku procesa proizvodnje, dok na kraju procesa zrenja nisu detektovane. Prisustvo vrsta iz roda Salmonella i Listeria monocytogenes, nije detektovano ni u jednoj fazi proizvodnog procesa ovčije stelje u svim ispitivanim uzorcima iz svih sezona. Od ukupno 432 BMK izolata, identifikovano je ukupno 6 vrsta, od kojih je 3,83% pripadalo rodu Leuconostoc, 8,35% rodu Enterococcus, 2,03% rodu Lactiplantibacillus, a najveći procenat (87,58%) je pripadao rodu Lactobacillus. Od ukupno 376 izolata KNS identifikovano je 152 izolata (40,42%) kao Staphylococcus equorum, 103 izolata (27,39%), kao Staphylococcus xylosus, 64 izolata (17,2%) kao Staphylococcus carnosus i 46 izolata (12,23%) je identifikovano kao Staphylococcus saprophyticus. Značajan deo mikrobiote sjeničke očije stelje su činile plesni, ukupno 221 izolata, pri čemu je karakterizacijom i identifikacijom determinisano ukupno 4 roda: Aspergillus (2,71%), Eurotium (10,86%), Penicillium (83,71%) i Mucor (2,71%). Rast plesni iz ovčije stelje je bio pod direktnim uticajem aktivnosti vode u supstratu. Tehnološkom karakterizacijom izolata je utvrđeno da izolati iz roda Lactobacillus pokazuju sposobnost rasta na temperaturi do 45ºC kao i na svim testiranim koncentracijama soli i različitim pH vrednostima, bez proteolitičke i lipolitičke aktivnosti. Izolati L. plantarum i L. mesenteroides su uspešno rasli na temperaturi do 15ºC, koncentracijama soli do 6,5% i pri pH vrednostima iznad 5. Izolati L. mesenteroides su pokazali proteolitičku aktivnost. Izolati koji su pripadali vrstama E. faecium i E. faecalis su rasli na temperaturama do 15ºC i na svim koncentracijama soli, i pokazali su proteolitičku i lipolitičku aktivnost. E. faecium izolati su rasli na svim testiranim pH vrednostima, dok su izolati E. faecalis rasli na pH vrednostima većim od 6. Antimikrobnu aktivnost prema testiranim indikatorskim vrstama pokazalo je 47,61% testiranih BMK izolata, sa najvećom zonom inhibicije prema E. coli ATCC 25922. Najveću antilisterijsku aktivnost je pokazao E. faecium Ios4 sa zonom inhibicije od 25 mm. KNS izolati nisu pokazali antimikrobnu sposobnost prema odabranim indikatorskim vrstama. Antimikrobna aktivnost poluprečišćenih bakteriocina izolata L. curvatus IIos4, L. curvatus IIos6, L. sakei IIb11, L. sakei IIa13, L. mesenteroides IIos4i i E. faecium Ios4 se potpuno izgubila pod delovanjem proteolitičkih enzima, dok se dobra antimikrobna aktivnost polipeptida zadržala na pH 7. Prisustvo hemijskih jedinjenja nije uticalo na antimikrobnu aktivnost poluprečišćeih bakteriocina. Proizvodnja antimikrobnih jedinjenja je zapažena u eksponencijalnoj fazi rasta. Tokom produžene inkubacije u stacionarnoj fazi (nakon 30 h) aktivnost supernatanta je značajno opala, da bi nakon inkubacije od 48 h antimikrobna aktivnost prečišćenih bakteriocina nestala. Testirani izolati BMK su pokazali dobar probiotski potencijal. Izolati Lactobacillus spp. su pokazali visok nivo tolerancije na nisku pH (2 i 3), kao i sposobnost rasta u prisustvu žučnih soli. Izolati L. plantarum i E. faecalis su pokazali slabu toleranciju na nisku pH (2 i 3) i prisustvo žučnih soli. Odabrani izolati su pokazali dobru sposobnost preživljavanja u simuliranim uslovima želudca i tankog creva i visok nivo sposobnost rasta u prisustvu fenola. Hidrofobnost prema hloroformu, n-heksadekanu i ksilolu se kretala u rasponu od 5,2% do 80,9%. Sposobnost autoagregacije i koagregacije sa E. coli ATCC 25922, testiranih izolata BMK izolata je bila izolat specifična. Testirani izolati nisu pokazali sposobnost sinteze biogenih amina kao ni hemolizu na krvnom agaru. Apsolutnu rezistenciju na antibiotike nije pokazao ni jedan testirani izolat. Osetljivost na istraživane antibiotike zabeležena je kod 69,04% testiranih izolata. Rezultati dobijeni ovom disertacijom ukazuju na činjenicu da se autohtoni fermentisani proizvod sjenička očija stelja odlikuje svim specifičnostima kvaliteta suvomesnatog proizvoda, koji u mnogome zavisi od mikrobiote koja se u toku fermentacije razvija u proizvodu. Rezultati probiotskih i bezbedonosnih svojstava BMK izolata iz sjenčike ovčije stelje otvaraju mogućnost daljih istraživanja potencijalne primene određenih sojeva u mesnoj industriji kao startera za proizvodnju suvomesnatih proizvoda." ]
[ "Sjenica’s sheep ham is an autochthonous fermented sheep meat product that is traditionally produced in rural households in the municipalities of Sjenica and Tutin. The product is prepared according to a unique recipe and technology, from boneless and shaped sheep carcasses of the indigenous breed of sheep called Sjenička pramenka which were raised on the Sjenica-cave plateau, without the addition of starter cultures and additives. For the purposes of the experiment, Sjenica’s sheep ham produced in selected households in the villages of Blato (A), Krajinoviće (B), and Rasno (V) from the Pešter area in three production seasons was used (2016/17 - 1; 2017/18 - 2; 2018/19 - 3), at the end of autumn and the beginning of spring, during 120 days of ripening. This dissertation defines the quality parameters of Sjenica’s sheep ham by examining the chemical composition and sensory characteristics of the product as well as by examining the indigenous microbiota of the product and comparing all parameters through different seasons, maturation periods, and households. Examination of the microbiota composition of the autochthonous product Sjenica’s sheep ham included examination of the presence and abundance of aerobic mesophilic bacteria, lactic acid bacteria (LAB), coagulase-negative staphylococci (CNS), bacteria from the families Enterobacteriaceae and Pseudomonadaceae, species of the genera Salmonella and Listeria monocytogenes as well as molds. Identification of LAB and CNS was performed using biochemical tests and MALDI-TOF mass spectrophotometry. Mold isolation was performed on Dichloran 18% glycerol agar (DG18) from the surface of sheep litter samples, while identification was performed using identification keys. The technological properties of LAB and CNS isolates and molds were examined. The antimicrobial potential of LAB and CNS isolates against the growth of Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922, Listeria monocytogenes ATCC 19115, Pseudomonas aeruginosa ATCC 27853 and Bacillus cereus ATCC 14579 was examined by well diffusion method. Isolates with the best antimicrobial potential were selected to analyze the influence of enzymes, pH, temperature, and chemical compounds on the antimicrobial activity of semi-purified bacteriocins and the kinetics of growth and biosynthesis of antimicrobial compounds. To assess the probiotic potential, 42 LAB isolates were selected. Isolates were tested for their ability to tolerate GIT conditions (tolerance to low pH, presence of pepsin, pancreatin, and bile salts, presence of phenols), hydrophobicity, ability to autoaggregation and co-aggregation, and safety assessment of isolates was performed by testing blood agar hemolysis and resistance on antibiotics. Chemical analysis of Sjenica’s sheep ham determined that the samples meet the requirements defined by the regulations on the quality of meat products, as well as the study on the protection of geographical origin of Sjenica’s sheep ham in terms of water, fat, meat protein, salt, and ash. Changes in pH values during the technological process correspond to the type of product. At the end of ripening, the pH values ranged from 5.15 to 5.6, which indicates the appropriate maturity of the product. During the ripening of the Sjenica’s sheep ham, there was a change in aw value of the product, which indicated the microbiological stability of the traditional product. The sensory analysis did not show damage, stains, and discoloration of the product, emphasizing the specificity of the product for all examined sensory parameters. The results of microbiota testing highlighted the dominance of LAB, which was accompanied by the presence of CNS and mold. The presence of bacteria from the families Enterobacteriaceae and Pseudomonadaceae was confirmed during the production process, while at the end of the maturation process, they were not detected. The presence of species from the genera Salmonella and Listeria monocytogenes was not detected at any stage of the production process of sheep ham in all tested samples from all seasons. Out of a total of 432 LAB isolates, a total of 6 species were identified, of which 3.83% belonged to the genus Leuconostoc, 8.35% to the genus Enterococcus, 2.03% to the genus Lactiplantibacillus and the largest percentage (87.58%) belonged to the genus Lactobacillus. Out of a total of 376 CNS isolates, 152 isolates (40.42%) were identified as Staphylococcus equorum, 103 isolates (27.39%) as Staphylococcus xylosus, 64 isolates (17.2%) as Staphylococcus carnosus and 46 isolates (12.23 %) was identified as Staphylococcus saprophyticus. A significant part of the microbiota of the Sjenica’s sheep ham consisted of molds, a total of 221 mold isolates, with the characterization and identification of a total of 4 genera: Aspergillus (2.71%), Eurotium (10.86%), Penicillium (83.71%) and Mucor (2.71%). The growth of mold from sheep ham was directly affected by water activity in the substrate. Technological characterization of isolates has determined that isolates of the genus Lactobacillus show the ability to grow at temperatures up to 45ºC as well as at all tested salt concentrations and different pH values, without proteolytic and lipolytic activity. Isolates of L. plantarum and L. mesenteroides successfully grew at temperatures up to 15ºC, salt concentrations up to 6.5%, and pH values above 5. Isolates of L. mesenteroides showed proteolytic activity. Isolates belonging to E. faecium and E. faecalis species grew at temperatures up to 15ºC and at all salt concentrations and showed proteolytic and lipolytic activity. E. faecium isolates grew at all tested pH values, while E. faecalis isolates grew at pH values greater than 6. Antimicrobial activity according to the tested indicator species was shown by 47.61% of tested LAB isolates, with the highest zone of inhibition according to E. coli ATCC 25922. The highest antilisterial activity was shown by E. faecium Ios4 with a zone of inhibition of 25 mm. CNS isolates did not show antimicrobial ability according to the selected indicator species. The antimicrobial activity of semi-purified bacteriocins of L. curvatus IIos4, L. curvatus IIos6, L. sakei IIb11, L. sakei IIa13, L. mesenteroides IIos4i, and E. faecium Ios4 isolates was completely lost by proteolytic enzymes, while the good antimicrobial activity of the polypeptide was maintained at pH 7. The presence of chemical compounds did not affect the antimicrobial activity of semi-purifying bacteriocins. The production of antimicrobial compounds was observed in the exponential growth phase. During the prolonged incubation in the stationary phase (after 30 h) the activity of the supernatant decreased significantly, and after the incubation of 48 h, the antimicrobial activity of the purified bacteriocins disappeared. LAB isolates testing showed good probiotic potential. Isolates of Lactobacillus spp. showed a high level of tolerance to low pH (2 and 3), as well as the ability to grow in the presence of bile salts. Isolates of L. plantarum and E. faecalis showed poor tolerance to low pH (2 and 3) and the presence of bile salts. Selected isolates showed good survival ability in simulated gastric and small intestine conditions and a high level of growth ability in the presence of phenol. Hydrophobicity towards chloroform, n-hexadecane, and xylene ranged from 5.2% to 80.9%. The ability of auto-aggregation and coaggregation with E. coli ATCC 25922, tested isolates of LAB isolates was isolate specific. The tested isolates did not show the ability to synthesize biogenic amines or hemolysis on blood agar. None of the tested isolates showed absolute antibiotic resistance. Susceptibility to the studied antibiotics was observed in 69.04% of the tested isolates. The results obtained by this dissertation indicate the fact that the autochthonous fermented product Sjenica’s sheep ham is characterized by all the specifics of the quality of cured meat product, which largely depends on the microbiota that develops in the product during fermentation. The results of probiotics and safety properties of LAB isolates from the shade of sheep litter open the possibility of further research into the potential application of certain strains in the meat industry as a starter to produce meat products." ]
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Универзитет у Крагујевцу, Филолошко-уметнички факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Крагујевцу
[ "sjenička ovčija stelja", "fermentisani proizvod", "hemijska analiza", "senzorna analiza", "autohtoni mikroorganizmi", "probiotski potencijal", "starter kulture" ]
[ "Sjenica’s sheep ham", "fermented product", "chemical analysis", "sensory analysis", "indigenous microorganisms", "probiotic potential", "starter cultures" ]
[ "Mikrobiota autohtonog fermentisanog proizvoda sjenička ovčija stelja" ]
[ "Microbiota of autochthonous fermented product Sjenica sheepʼs ham" ]
doctoralThesis
[ "BY" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151845/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1578/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21689" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/21684
123456789-21684.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1630/bdef:Content/download
no
Sinteza, karakterizacija i potencijalni antitumorski efekti mononuklearnih 5,6- epoksi-5,6-dihidro-1,10-fenantrolinskih kompleksa platine(II)
Synthesis, characteristics and potential antitumor effects of mononuclear 5,6-epoxy-5,6-dihydro-1,10- phenanthroline platinum (II) complexes
[ "Jovanović, Ivan" ]
[ "Živković, Marija", "Jurišević, Milena", "Mitrović, Slobodanka", "Čobeljić, Božidar" ]
Dimitrijević Stojanović, Milica
2023-09-06T12:19:25
[ "2023-09-06T12:19:25" ]
2022
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8671", "https://fedorakg.kg.ac.rs/fedora/get/o:1630/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21684" ]
[ "Uvod: Četiri Pt(II) kompleksa opšte formule [Pt(L)(5,6-epoxy-1,10-phen)], gde je L anjon malonske kiseline (mal, Pt1), 2-metilmalonske kiseline (Me-mal, Pt2), 2,2- dimetilmalonske kiseline (Me2-mal, Pt3) i 1,1-ciklobutandikarboksilne kiseline (CBDCA, Pt4) i 5,6-epoksi-1,10-fen je 5,6-epoksi-5,6-dihidro-1,10-fenantrolin. Materijal i metode: Kompleksi su sintetizovani i okarakterisani elementalnom mikroanalizom i različitim spektroskopskim tehnikama. Kristalna struktura anhidrovanog kompleksa Pt3 određena je difrakcijom rendgenskih zraka monokristala. Antikancerogena aktivnost kompleksa platine(II) je ispitivana u ljudskim i mišjim ćelijskim linijama karcinoma dojke i kolorektuma, kao i u zdravoj liniji mezenhimalnihn matičnih ćelija miša, korišćenjem MTT testa. Rezultati: Ispitivani kompleksi platine(II) pokazuju snažnu citotoksičnu aktivnost protiv ćelija karcinoma dojke miša (4T1), humanih (HCT116) i mišjih (CT26) ćelija kolorektalnog karcinoma. Pt3 kompleks pokazuje jaču selektivnost protiv tumorskih ćelija u poređenju sa drugim ispitivanim kompleksima platine(II) i na taj način pokazuje korisnu antitumorsku aktivnost, uglavnom indukujući apoptozu i inhibiciju proliferacije i migracije tumorskih ćelija. Pt3 kompleks, takođe pokazuje značajnu in vivo antitumorsku aktivnost u ortotopskom modelu tumora dojke, bez toksičnosti za jetru, bubrege, pluća i srce. Zaključak: Svi rezultati ukazuju da novosintetisani kompleksi platine(II) imaju dobru antitumorsku aktivnost na tumorske ćelije karcinoma dojke i kolorektalnog karcinoma i imaju potencijal da postanu mogući kandidati u antikancerskoj terapiji." ]
[ "Introduction: Four Pt(II) complexes of the general formula [Pt(L)(5,6-epoxy-1,10-phen)], where L is an anion of either malonic acid (mal, Pt1), 2-methylmalonic acid (Me-mal, Pt2), 2,2-dimethylmalonic acid (Me2-mal, Pt3) or 1,1-cyclobutanedicarboxylic acid (CBDCA, Pt4) and 5,6-epoxy-1,10-phen is 5,6-epoxy-5,6-dihydro-1,10-phenanthroline. Material and methods: Complexes were synthesized and characterized by elemental microanalysis and different spectroscopic techniques. The crystal structure of anhydrous Pt3 complex was determined by single crystal X-ray diffraction. The in vitro anticancer activity of the platinum(II) complexes was investigated in human and murine cancer cell lines as well as in a normal murine cell line by MTT assay. Results: The results show that the investigated platinum(II) complexes exhibit potent cytotoxic activity against murine breast carcinoma cells (4T1), human (HCT116) and murine (CT26) colorectal carcinoma cells. The Pt3 complex shows stronger selectivity against cancer cells compared to other platinum(II) complexes tested and thus exhibits beneficial antitumor activity, mainly by inducing apoptosis and inhibiting cell proliferation and migration. The Pt3 complex also exhibits significant in vivo antitumor activity in the orthotopical 4T1 tumor model without detected liver, kidney, lung, and heart toxicity. Conclusion: All the results indicate that these novel platinum(II) complexes have good antitumor activity on breast and colorectal cancer and have the potential to become possible candidates for cancer treatment." ]
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Универзитет у Крагујевцу, Факултет медицинских наука
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Крагујевцу
[ "kompleksi platine(II)", "citotoksičnost", "apoptoza", "rast karcinoma dojke", "toksičnost" ]
[ "Platinum(II) complexes", "Cytotoxicity", "Apoptosis", "Breast cancer growth", "Toxicity" ]
[ "Sinteza, karakterizacija i potencijalni antitumorski efekti mononuklearnih 5,6- epoksi-5,6-dihidro-1,10-fenantrolinskih kompleksa platine(II)" ]
[ "Synthesis, characteristics and potential antitumor effects of mononuclear 5,6-epoxy-5,6-dihydro-1,10- phenanthroline platinum (II) complexes" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151850/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1630/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21684" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/21632
123456789-21632.pdf
no
no
https://fedorakg.kg.ac.rs/fedora/get/o:1579/bdef:Content/download
no
Contribution to the theory of random environment integer-valued autoregressive processes: doctoral dissertation
Doprinos teoriji celobrojnih autoregresivnih procesa u slučajnoj okoloini : doktorska disertacija
[ "Nastić, Aleksandar" ]
[ "Popović, Božidar V.", "Milošević, Marija G.", "Popović, Predrag", "Đorđević, Miodrag" ]
Pirković, Bogdan
2023-09-06T12:18:02
[ "2023-09-06T12:18:02" ]
2022
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8620", "https://fedorakg.kg.ac.rs/fedora/get/o:1579/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21632" ]
[ "This dissertation has 2 basic goals. The first goal is to construct the random environment INAR time series that can take both positive and negative values. The realization of such goal would create new possibilities in integer-valued data modeling. In addition, since the environment state estimation of each individual realization is a crucial step in real-life data modeling using models in random environment, the goal is to adapt existing clustering techniques in order to make the environment state estimates more accurate. Both goals, if realized, would represent an original authorial contribution to the integervalued time series analysis. The dissertation contains 4 chapters. Chapter 1 is the introductory one and provides a historical overview of the INAR models development. Also, this chapter offers important theorems and distributions known from before, necessary to adduce proofs in subsequent chapters. Relying on results given in [15], Chapter 2 discusses possibilities of extracting and predicting latent components of the true INAR time series with skewed Skellam marginal distribution. In Chapter 3, a construction of the new non-stationary random environment INAR model with values over entire Z is given. Unknown model parameters are estimated using adapted estimation techniques. The efficiency of estimates is tested on simulated data. A quality of the introduced model is examined on appropriate real-life data. In Chapter 4, the K-means clustering technique adaptation is provided, in order to make it suitable for estimating environment states of realizations corresponding to the generalized random environment INAR time series. The adaptation efficiency is tested on simulated and real-life data and compared to clustering results obtained using standard K-means." ]
[ "Ova disertacija ima 2 cilja. Najpre, cilj disertacije je konstrukcija novih INAR vremenskih serija u sluˇcajnoj okolini koji mogu uzeti kako pozitivne, tako i negativne vrednosti. Uspeˇsna realizacija ovog cilja donela bi nove mogu´cnosti u modeliranju celobrojnih nizova podataka. Dodatno, kako je ocena stanja okoline svake realizacije kljuˇcni korak u modeliranju stvarnih procesa pomo´cu novouvedenih modela u sluˇcajnoj okolini, cilj disertacije je prilagod¯avanje postoje´cih metoda klasterovanja sa namerom da ocene stanja budu ˇsto preciznije. Oba navedena cilja bi, u sluˇcaju realizacije, predstavljala originalan doprinos autora analizi celobrojnih vremenskih serija. Disertacija sadrˇzi 4 glave. Glava 1 je uvodnog karaktera i daje istorijski pregled razvoja INAR modela. Takod¯e, ova glava nudi neke bitne teoreme i raspodele poznate od ranije, neophodne za izvod¯enje dokaza u narednim glavama. Oslanjaju´ci se na rezultate date u [15], u Glavi 2 su razmotrene mogu´cnosti identifikovanja i predvid¯anja latentnih komponenti INAR vremenske serije sa asimetriˇcnom Skelamovom marginalnom raspodelom. U Glavi 3 pristupa se konstrukciji novog nestacionarnog INAR modela u sluˇcajnoj okolini koji moˇze uzeti vrednosti na ˇcitavom skupu Z. Nepoznati parametri modela ocenjeni su pomo´cu prilagod¯enih tehnika ocenjivanja. Efikasnost ocena je testirana na simuliranim podacima. Kvalitet modela ispitan je na odgovaraju´cim realnim nizovima podataka. U Glavi 4 pristupa se adaptaciji K-means tehnike klasterovanja, sa ciljem da se ona prilagodi ocenjivanju stanja okoline realizacija koje odgovaraju uopˇstenoj INAR vremenskoj seriji u sluˇcajnoj okolini. Efikasnost adaptacije testirana je na simuliranim podacima i upored¯ena sa rezultatima klasterovanja dobijenim pomo´cu standardne K-means tehnike." ]
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Универзитет у Крагујевцу, Природно-математички факултет
[ "" ]
[ "openAccess" ]
[ "" ]
Универзитет у Крагујевцу
[ "INAR(1)", "DLINAR(1)", "thinning operator", "random environment", "discrete Laplace marginals", "geometric marginals", "K-means technique", "state estimation", "Markov chain" ]
[ "INAR(1)", "DLINAR(1)", "tining operator", "sluˇcajna okolina", "diskretna Laplasova marginalna raspodela", "geometrijska marginalna raspodela", "K-means tehnika", "ocena stanja", "lanac Markova" ]
[ "Contribution to the theory of random environment integer-valued autoregressive processes: doctoral dissertation" ]
[ "Doprinos teoriji celobrojnih autoregresivnih procesa u slučajnoj okoloini : doktorska disertacija" ]
doctoralThesis
[ "" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151902/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1579/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21632" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21631
123456789-21631.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1577/bdef:Content/download
no
Sinteza, karakterizacija i biološka aktivnost dinuklearnih platina(II) i paladijum(II) kompleksa sa azot-donorskim mostnim ligandima
Synthesis, characterisation and biological activity of dinuclear platinum(ii) and palladium(ii) complexes with nitrogen-donor bridging ligands
[ "Petrović, Biljana" ]
[ "Grgurić-Šipka, Sanja", "Jovanović Stević, Snežana", "Jelić, Ratomir", "Popović, Suzana" ]
Ćoćić, Dušan
2023-09-06T12:18:01
[ "2023-09-06T12:18:01" ]
2022
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8618", "https://fedorakg.kg.ac.rs/fedora/get/o:1577/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21631" ]
[ "U okviru ove disertacije opisana je sinteza i karakterizacija dinuklearnih kompleksa Pd(II) i/ili Pt(II) sa azot-donorskim mostnim (pirazol, 4,4’-bipiridin, tpdm = derivat benzen-1,4-diamina) i inertnim (etilendiamin, 2,2’-bipiridin, diaminocikloheksan) ligandima, koji poseduju različite π-akceptorske i σ-donorske karakteristike. Strukture kompleksa potvrđene su različitim analitičkim metodama (elementalna mikroanaliza, UV-Vis, IR, 1H NMR, MALTI-TOF i ESI-MS spektrometrija), a za odgovarajuće akva analoge kompleksa određene su pKa vrednosti. Rezultati ispitivanja nukleofilnih supstitucionih reakcija sa biološki relevantnim nukleofilima pokazali su da u zavisnosti od nukleofila u procesu supstitucije može doći do narušavanja strukture dinuklearnog kompleksa. Redosled reaktivnosti dinuklearnih kompleksa zavisi od vrste jona metala koji ulaze u sastav, kao i od strukturnih i elektronskih karakteristika inertnih i mostnih liganada, dok je reaktivnost sumpordonorskih nukleofila (tiourea, L-cistein, L-metionin, glutation) u svim slučajevima bila veća u odnosu na azot-donorske (L-histidin, guanozin-5’-monofosfat). Rezultati ispitivanja interakcija sa DNK pokazali su da kompleksi imaju sposobnost da se vežu interkalacijom i/ili za mali žljeb DNK heliksa. Ispitivanjem interakcija sa goveđim serumskim albuminom (BSA) dobijene su umerene do visoke vrednosti za konstante vezivanja (reda veličine 103 -105 M-1 ), dok je molekulskim dokingom potvrđeno vezivanje kompleksa za strukturni domen I (pod-domen IIA) proteina. Rezultati bioloških ispitivanja pokazali su da kompleksi poseduju značajnu citotoksičnu aktivnost na odabranim humanim ćelijskim linijama adenokarcinoma grlića materice (HeLa), karcinoma dojke (MDA-MB-231), melanoma (HTB140) i karcinoma pluća (H460)), kao i da mehanizam citotoksičnog delovanja jako zavisi od strukture dinuklearnog kompleksa." ]
[ "This dissertation describes the synthesis and characterization of dinuclear Pd(II) and/or Pt(II) complexes with nitrogen-donor bridging (pyrazole, 4,4'-bipyridine, tpdm = benzene-1,4- diamine derivative) and inert (ethylenediamine, 2,2'-bipyridine, diaminocyclohexane) ligands, that have different π-acceptor and σ-donor characteristics. The structures of these complexes were confirmed by various analytical methods (elemental microanalysis, UV-Vis, IR, 1H NMR, MALTI-TOF and ESI-MS spectrometry). The pKa values for the corresponding aqua analogues of dinuclear complexes were determined as well. The results of the investigation of nucleophilic substitution reactions with biologically relevant nucleophiles showed that, depending on the type of the nucleophile, the structure of dinuclear complexes may be disturbed in the substitution process. The order of reactivity of dinuclear complexes depends on the type of metal ions as well as on the structural and electronic characteristics of inert and bridging ligands. Additionally, the reactivity of sulfur-donor nucleophiles (thiourea, L-cysteine, L-methionine, glutathione) in all cases was higher than the reactivity of nitrogendonors (L-histidine, guanosine-5'-monophosphate). The results of the investigation of the interactions with DNA have shown that complexes can bind by intercalation and/or by minor groove binding to DNA helix. High values of binding constants (range 103 -105 ) were obtained for the interactions of complexes with bovine serum albumin (BSA), while molecular docking confirmed the binding of complexes to structural domain I (sub-domain IIA) of the protein. The results of biomedical studies showed that complexes possess significant cytotoxic activity on selected cell lines (HeLa, MDA-MB-231, HTB140, H460), and that the mechanism of the cytotoxic activity of dinuclear complexes strongly depends on their structure." ]
application/pdf
sr
Универзитет у Крагујевцу, Природно-математички факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Крагујевцу
[ "Dinuklearni kompleksi Pd(II) i/ili Pt(II)", "Biomolekuli", "Kinetika", "Mehanizam", "DNK", "BSA", "Citotoksičnost", "Kompjuterska hemija", "Molekulski dokin" ]
[ "Dinuclear Pd(II) and/or Pt(II) complexes", "Biomolecules", "Kinetics", "Мechanism", "DNA", "BSA", "Cytotoxicity", "Computatiоnal chemistry", "Molecular dockingocking" ]
[ "Sinteza, karakterizacija i biološka aktivnost dinuklearnih platina(II) i paladijum(II) kompleksa sa azot-donorskim mostnim ligandima" ]
[ "Synthesis, characterisation and biological activity of dinuclear platinum(ii) and palladium(ii) complexes with nitrogen-donor bridging ligands" ]
doctoralThesis
[ "BY" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151903/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1577/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21631" ]
[ "" ]
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[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/21630
123456789-21630.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1576/bdef:Content/download
no
Antagonisti estrogen receptora α: Racionalni dizajn novih supresanata raka dojke baziran na 3-D QSAR, COMBINEr i 3-D farmakofornim studijama
Аntagonists of Estrogen Receptor α: Rational Design of New Breast Cancer Suppressants Based on 3-D QSAR, COMBINEr, and 3-D Pharmacophore Studies
[ "Mladenović, Milan" ]
[ "Kostić, Danijela", "Mitrović, Marina", "Ragno, Rino" ]
Kurtanović, Nezrina
2023-09-06T12:18:00
[ "2023-09-06T12:18:00" ]
2022
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8617", "https://fedorakg.kg.ac.rs/fedora/get/o:1576/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21630" ]
[ "Estrogen receptor α (ERα) predstavlja transkripcioni regulator čija je fiziološka aktivnost indukovana 17β-estradiolom i koji inicira transkripcionu mašineriju zavisnu od RNA polimeraze II, nakon čega može doći do razvoja kancera dojke direktnim ili indirektnim genomskim putem. Da bi se dizajnirali i sintetisali inovativni ligandi ERα kao supresanti raka dojke, trodimenzionalne studije zavisnosti strukture od aktivnosti (3-D QSAR) bazirane na strukturi molekulske mete (SB), izvedene pomoću 3-D QSAutogrid/R, Py-CoMFA ili PHASE softvera, zatim studije upoređivanja vezivnih energija (COMBINEr), izvedene pomoću Py-ComBinE softvera, kao i 3-D farmakoforne studije, izvedene pomoću PHASE softvera, sprovedene su na osnovu eksperimentalno određenih bioaktivnih konformacija parcijalnih agonista, mešovitih agonista/antagonista (SERMs) i potpunih antagonista (SERDs), ko-kristalizovanih u kompleksu sa prirodnim ili mutiranim receptorima. Takođe, procene sposobnosti reprodukcije bioaktivnih konformacija na osnovu struktura molekulskih meta (SB) kao i bioaktivnih konformacija samih liganada (LB), sprovedene pomoću softvera besplatnih za akdemsku zajednicu ili komercijalnih rešenja, dale su upute kako da se izvrši SB/LB poravnanje netestiranih jedinjenja. 3-D QSAR, COMBINEr i 3-D farmakoforni modeli za ligande ERα, upareni sa pravilima za SB/LB poravnanja, obznanjeni su kao korisni za definisanje molekularnih determinanti za antikancerogenu aktivnost baziranu na antagonizmu ERα kao i za predviđanje aktivnosti odgovarajućih liganada. Ovde razvijeni protokoli verifikovani su kroz dizajn i predviđanje aktivnosti 12 novih SERMs kumarinskog tipa, proisteklih iz 3-D QSAutogrid/R metodologije, nazvanih 3DQ-1a do 3DQ-1e, zatim 6 novih kumarinskih SERMs proisteklih iz Py-CoMFA i PyComBinE metodologija, označenih kao CBE-1 do CBE-6, kao i 12 novih derivata brefeldina A (BFA), kao rezultat aplikacije PHASE 3-D farmakofornih i 3-D QSAR studija, označenih kao 3DPQ-1 do 3DPQ-12, koji su razvijeni nakon virtuelnog skeniranja datasetova iz National Cancer Institute i optimizacije BFA. Svi novi in silico-dizajnirani ERα antagonisti sintetisani su i potvrđeni kao selektivni antagonisti ERα, pokazujući aktivnost u rM do nM opsegu. Jedinjenja su potvrđena kao modulatori ERα i validirana kao antiproliferativni agensi na nivou MCF-7 ćelijskih linija kancera dojke, takođe ispoljavajući rM do nM aktivnost, u isto vreme ne pokazujući agonizam prema endometrijalnim ćelijskim linijama, čime su ispoljili farmakološki profil superiorniji u odnosu na SERMs. Mehanizam delovanja proučavan je na nivou inhibicije Raf-1/MAPK/ERK i p53 puteva signalne transdukcije, sprečavajući hormonski-posredovanu ekspresiju gena na nivou direktnog i indirektnog puta i stopirajući proliferaciju MCF-7 ćelijskih linija u G0/G1 fazi. In vivo eksperimenti u smislu per os administracije na ženkama pacova iz Wistar soja sa indukovanim kancerom dojke, izdvojili su derivate 3DQ-4a, 3DQ-2a, 3DQ-1a, 3DQ1b, 3DQ-2b, 3DQ-3b, CBE-4, CBE-5, CBE-3, 3DPQ-12, 3DPQ-3, 3DPQ-9, 3DPQ-4, 3DPQ2 i 3DPQ-1 kao one sa izvanrednim potencijalom supresije tumora uz ispoljavanje optimalnog farmakokinetičkog profila i bez značajnih histopatoloških posledica. Priloženi podaci ukazuju da navedena jedinjenja trebaju biti podvrgnuta kliničkim studijama u lečenju kancera dojke." ]
[ "The estrogen receptor α (ERα) represents a 17β-estradiol inducible transcriptional regulator that initiates the RNA polymerase II-dependent transcriptional machinery, pointed for breast cancer (BC) development via either genomic direct or genomic indirect (i.e. tethered) pathway. To design and synthesize innovative ligands against ERα, structure-based (SB) three-dimensional quantitative structure-activity relationships (3-D QSAR) studies, conducted either employing 3-D QSAutogrid/R, Py-CoMFA, or PHASE software, SB Comparative Binding Energy (COMBINEr) studies, performed with the aid of Py-ComBinE software, as well as SB 3-D Pharmacophore studies, developed using PHASE software, have been undertaken using experimentally determined bioactive conformations of partial agonists, mixed agonists/antagonists (SERMs), and full antagonists (SERDs) co-crystallized within either wild-type or mutated ERα receptors. SB and ligand-based (LB) alignments assessments, performed with the aid of free-for academia or commercial software, ruled out the guidelines for SB/LB alignment of untested compounds. 3-D QSAR, COMBINEr, and 3-D Pharmacophore models for ERα ligands, coupled with SB/LB alignment, were revealed to be useful tools to dissect the chemical determinants for ERα-based anticancer activity as well as to predict their potency. The herein-developed protocols were verified through the design and potency prediction of new 12 coumarin-based SERMs originating from the 3-D QSAutogrid/R methodology, namely 3DQ-1a to 3DQ-1е, new 6 coumarin-based SERMs originating from the Py-CoMFA and PyComBinE methodologies, namely CBE-1 to CBE-6, as well as 12 new Brefeldin A (BFA)- derivatives, originating from the PHASE 3-D Pharmacophore studies and 3-D QSAR studies, 3DPQ-1 to 3DPQ-12, emerging after the virtual screening of National Cancer Institute datasets and lead optimization of BFA. All new in silico-designed ERα antagonists were synthesized and confirmed as selective ERα antagonists, showing potencies ranging from single-digit nanomolar to picomolar. The hits were confirmed as selective estrogen receptor modulators and validated as antiproliferative agents using MCF-7 breast cancer cell lines exerting picomolar to low nanomolar potency, at the same time showing no agonistic activity within endometrial cell lines thus exerting a superior profile than SERMs. Their mechanism of action was inspected and revealed to be through the inhibition of the Raf-1/MAPK/ERK and p53 signal transduction pathways, preventing hormone-mediated gene expression on either genomic direct or genomic indirect level, and stopping the MCF-7 cells proliferation at G0/G1 phase. In vivo experiments, by means of the per os administration to female Wistar rats with preinduced breast cancer, distinguished the following derivatives, 3DQ-4a, 3DQ-2a, 3DQ-1a, 3DQ1b, 3DQ-2b, 3DQ-3b, CBE-4, CBE-5, CBE-3, 3DPQ-12, 3DPQ-3, 3DPQ-9, 3DPQ-4, 3DPQ2, and 3DPQ-1, showing remarkable potency as tumor suppressors endowing with optimal pharmacokinetic profiles and no significant histopathological profiles. The presented data indicate the new compounds as potential candidates to be submitted to clinical trials for breast cancer therapy." ]
application/pdf
sr
Универзитет у Крагујевцу, Природно-математички факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-sa/4.0/" ]
Универзитет у Крагујевцу
[ "ERα", "kancer dojke", "3-D QSAR", "COMBINEr", "3-D farmakofore", "molekulsko dokovanje", "trodimenzionalno upoređivanje struktura", "novi antagonisti ERα", "sinteza", "in vitro antagonizam i antiproliferativna evaluacija", "in vivo antikacerogena evaluacija" ]
[ "Erα", "breast cancer", "3-D QSAR", "COMBINEr", "and 3-D Pharmacophores", "structurebased alignment assessment", "ligand-based alignment assessment", "new ERα antagonists", "synthesis", "in vitro antagonism", "and antiproliferative evaluation", "in vivo anticancer evaluation" ]
[ "Antagonisti estrogen receptora α: Racionalni dizajn novih supresanata raka dojke baziran na 3-D QSAR, COMBINEr i 3-D farmakofornim studijama" ]
[ "Аntagonists of Estrogen Receptor α: Rational Design of New Breast Cancer Suppressants Based on 3-D QSAR, COMBINEr, and 3-D Pharmacophore Studies" ]
doctoralThesis
[ "BY-NC-SA" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151904/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1576/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21630" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/21629
123456789-21629.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1602/bdef:Content/download
no
Specifičnosti radnopravnog položaja državnih službenika u Republici Srbiji i zemljama EU
Specifics of the employment position of civil servants in the Republic of Serbia and EU countries
[ "Urdarević, Bojan" ]
[ "Brković, Radoje", "Mirović, Dejan", "Antić, Aleksandar" ]
Petrović, Jovana
2023-09-06T12:17:51
[ "2023-09-06T12:17:51" ]
2022
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8643", "https://fedorakg.kg.ac.rs/fedora/get/o:1602/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21629" ]
[ "Rezime: Društveni položaj državnih službenika oduvek se razlikovao od položaja zaposlenih u privatnom sektoru. Posao koji obavljaju u privatnoj organizaciji tiče se samo određene organizacije, a rad državnih službenika ima snažan uticaj, jer javna uprava odlučuje o stvarima koje se tiču cele zajednice. Svaka država u okviru svog pravnog sistema svrstava državne službenike u različite kategorije, a one su rezultat razdvajanja privatne i javne sfere. Kao deo opšteg sistema radnih odnosa, službenički sistem karakteriše niz osobina koje su posledica specifičnog položaja zaposlenih u državnim organima, koji u ime države vrše javne poslove i samim tim imaju specifične obaveze i odgovornosti. Predmet ove disertacije predstavljaju najvažnija pitanja, ali i problemi radnih odnosa u državnim organima s posebnim akcentom na specifičnosti tih odnosa u odnosu na zaposlene u opštem režimu radnih odnosa. Predmet interesovanja jeste sagledavanje i bliže objašnjenje pojma, prirode i osnovnih obeležja radnopravnog položaja državnih službenika, kako sa teorijsko-naučnog i praktičnog aspekta, tako i s normativnopravnog i uporednog gledišta, kao i da se uz pomoć odgovarajućih metoda utvrdi trenutan radno-pravni položaj državnih službenika u našoj zemlji i pojedinim zemljama EU (Nemačka, Slovenija i Hrvatska) koje će biti predmet komparativne analize. Rezultati sprovedenog empirijskog istraživanja na uzorku od N=322 ispitanika, odnosno državnih službenika daju kvalitetnu osnovu za zaključivanje o karakteristikama postojećeg stanja, problemima, prednostima i nedostacima zapošljavanja u državnoj službi, kao i mogućnostima unapređenja statusa državnih službenika i to: 1) Postoje značajni problemi u praksi napredovanja, koja nije u dovoljnoj meri zasnovana na rezultatima, sposobnostima i zaslugama, uz naznaku prevelikog značaja neformalnih mreža i slučajnih momenata. 2) Glavne prepreke dobroj motivaciji za rad su organizacija rada, formalizam i papirologija, politizacija i nedozvoljeni uticaji, loša atmosfera na poslu, demotivišuće plate, nedostatak dobrih uslova za rad, nedovoljan kvalitet i profesionalnost rukovođenja, problemi sa objektivnošću u ocenjivanju. 3) Kao pozitivne reformske mere poželjne su veće plate, fleksibilnije radno vreme, bolji odmori, smanjenje ograničenja u napredovanju, obuke u inostranstvu i sl." ]
[ "Abstract: The social position of civil servants has always differed from the position of employees in the private sector. The work they do in a private organization concerns only a certain organization, and the work of civil servants has a strong influence, because the public administration decides on matters that concern the whole community. Each state, within its legal system, classifies civil servants into different categories, and they are the result of the separation of the private and public spheres. As part of the general system of labor relations, the civil service system is characterized by characteristics that are a consequence of the specific position of employees in state bodies, who perform public affairs on behalf of the state and thus have specific obligations and responsibilities. The subject of this dissertation is the most important issues, but also the problems of labor relations in state bodies with special emphasis on the specifics of these relations in relation to employees in the general regime of labor relations. The subject of interest is to consider and explain the concept, nature and basic features of the employment status of civil servants, both from the theoretical-scientific and practical aspects, as well as from the normative-legal and comparative point of view, as well as to determine the current employment status of civil servants. our country and some EU countries (Germany, Slovenia and Croatia) which will be the subject of comparative analysis. The results of the conducted empirical research on a sample of N = 322 respondents, ie civil servants provide a quality basis for concluding on the characteristics of the current situation, problems, advantages and disadvantages of employment in the civil service, as well as opportunities to improve the status of civil servants: 1) in the practice of advancement, which is not sufficiently based on results, abilities and merits, with an indication of the excessive importance of informal networks and random moments. 2) The main obstacles to good work motivation are work organization, formalism and paperwork, politicization and illicit influences, bad atmosphere at work, demotivating salaries, lack of good working conditions, insufficient quality and professionalism of management, problems with objectivity in assessment. 3) Higher salaries, more flexible working hours, better vacations, reduction of restrictions on advancement, trainings abroad, etc. are desirable as positive reform measures." ]
application/pdf
sr
Универзитет у Крагујевцу, Правни факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Крагујевцу
[ "državni službenik", "opšti režim radnih odnosa", "posebni režimi radnih odnosa", "radno-pravni položaj", "prava i obaveze službenika", "položaji i izvršilačka radna mesta", "službeničke plate i dodaci", "merit sistem", "Republika Srbija", "Nemačka", "Slovenija", "Hrvatska" ]
[ "civil servant", "general regime of labor relations", "special regimes of labor relations", "labor-legal position", "rights and obligations of civil servants", "positions and executive positions", "civil servants salaries and allowances", "merit system", "Republic of Serbia", "Germany", "Slovenia", "Croatia" ]
[ "Specifičnosti radnopravnog položaja državnih službenika u Republici Srbiji i zemljama EU" ]
[ "Specifics of the employment position of civil servants in the Republic of Serbia and EU countries" ]
doctoralThesis
[ "BY" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151905/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1602/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21629" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21642
123456789-21642.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1551/bdef:Content/download
no
Uticaj fizičke aktivnosti na antropometrijske, kardiovaskularne, metaboličke i biohemijske parametre kod pacijenata sa dijabetes melitusom tipa 2
ǂThe ǂeffects of physical activity on anthropometric, cardiovascular, metabolic and biochemical parameters in patients with type 2 diabetes mellitus
[ "Živković, Vladimir" ]
[ "Đurić, Dušan", "Srejović, Ivan", "Radovanović, Dragan S." ]
Antonijević, Aleksandar
2023-09-06T12:18:34
[ "2023-09-06T12:18:34" ]
2022
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8595", "https://fedorakg.kg.ac.rs/fedora/get/o:1551/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21642" ]
[ "Uvod: Iako je poznato da redovna fizička aktivnost smanjuje učestalost i ozbiljnost komplikacija šećerne bolesti, postavlja se ključno pitanje tipa, intenziteta i trajanja fizičke aktivnosti koja može da ostvari ovakve pozitivne ishode? Budući da na pomenuto pitanje još uvek nema jedinstvenog odgovora (naročito u našoj zemlji) i da su dostupni podaci neusaglašeni, smatrali smo da bi bilo od interesa da se sprovede istraživanje koje bi ispitalo efekte šestomesečnog programa aerobnog treninga na kliničku sliku osoba sa dijebetes melitusom tipa 2. Cilj: Ispitivanje uticaja strukturisanog programa fizičke aktivnosti u trajanju od 6 meseci na antropometrijske, kardiovaskularne, metaboličke i biohemijske parametre kod pacijenata sa dijabetes melitusom tipa 2. Metode: Istraživanje je obuhvatilo grupu od 200 ispitanika - 40 kontrolnih i 160 pacijenata obolelih od dijabetes melutusa tipa 2 (oba pola, starosti od 30 – 60 godina) koji su lečeni u Savetovalištu za dijabetes pri specijalističkoj ordinaciji opšte medicine organizacione jedinice Doma zdravlja Požega. Pored kontrolne grupe, ispitanici su bili svrstani u 5 grupa u zavisnosti od tipa farmakološke terapije (insulin ili oralni antidijabetici) i primene aerobne fizičke aktivnosti tipa brzog hoda tokom 6 meseci. Prvog dana otpočinjanja trenažnog protokola (pre fizičke aktivnosti) i nakon 6 meseci svim ispitanicima su praćeni sledeći parametri: indeks telesne mase - BMI, glikolizirani hemoglobin - HbA1C, glikemija i insulinemija našte, arterijski krvni pritisak, biohemijski markeri krvi (lipidni profil, enzimi jetre, bubrežni pokazatelji i zapaljenski markeri) i parametri oksidacionog stresa. Aerobna aktivnost je bila umerenog intenziteta, što odgovara 40-60% maksimalne potrošnje kiseonika (za većinu ljudi sa dijabetesom tip 2, brzo hodanje je vežbanje umerenog intenziteta). Rezultati: Šestomesečni program treninga može se dovesti u vezu sa značajnijom redukcijom hipertenzije, efikasnijom kontrolom glikemije i boljim lipidnim profilom u odnosu na farmakološku terapiju dijabetesa 2, što doprinosi značajnijem smanjenju ukupnog kardiovaskularnog rizika kod ovih pacijenata. Osim toga, primena aerobnog vida fizičke aktivnosti kod naših ispitanika se povezuje sa boljim oksidacionim statusom, što doprinosi manjem riziku od razvoja mikro i marko komplikacija šećerne bolesti tipa 2." ]
[ "Introduction: Although regular physical activity is known to reduce the frequency and severity of diabetes complications, the key question is the type, intensity and duration of physical activity that can achieve such positive outcomes? Since there is still almost no answer to this question (especially in our country) and the available data are inconsistent, we thought it would be interesting to conduct a study to examine the effects of a six-month aerobic training program on the clinical picture of people with diabetes mellitus 2. Objective: Investigation of the impact of a structured physical activity program lasting 6 months on anthropometric, cardiovascular, metabolic and biochemical parameters in patients with type 2 diabetes mellitus. Methods: The study included a group of 200 subjects - 40 control and 160 patients with type 2 diabetes mellitus (both sexes, aged 30-60 years) who were treated at the Diabetes Counseling Center at the specialist general practice of the Pozega health center. In addition to the control group, the subjects were classified into 5 groups depending on the type of pharmacological therapy (insulin or oral antidiabetics) and the use of aerobic physical activity of the walking type for 6 months. On the first day of starting the training protocol (before physical activity) and after 6 months, all subjects were monitored for the following parameters: body mass index - BMI, glycosylated hemoglobin - HbA1C, fasting blood glucose and insulinemia, arterial blood pressure, biochemical blood markers, lipid profile, liver enzymes, renal indicators and inflammatory markers) and oxidative stress parameters. Aerobic activity was of moderate intensity, which corresponds to 40-60% of maximum oxygen consumption (for most people with type 2 diabetes, brisk walking is exercise of moderate intensity). Results: A six-month training program can be associated with a significant reduction in hypertension, more effective glycemic control and a better lipid profile compared to the pharmacological therapy of diabetes 2, which contributes to a significant reduction in overall cardiovascular risk in these patients. In addition, the use of aerobic physical activity in our subjects was associated with better oxidative status, which contributes to a lower risk of developing micro and marco complications of type 2 diabetes." ]
application/pdf
sr
Универзитет у Крагујевцу, Факултет медицинских наука
[ "" ]
[ "openAccess" ]
[ "" ]
Универзитет у Крагујевцу
[ "fizička aktivnost", "dijabetes melitus tipa 2", "glikemija", "lipidni profil", "oksidacioni stres" ]
[ "physical activity", "type 2 diabetes mellitus", "glycemia", "lipid profile", "oxidative stress" ]
[ "Uticaj fizičke aktivnosti na antropometrijske, kardiovaskularne, metaboličke i biohemijske parametre kod pacijenata sa dijabetes melitusom tipa 2" ]
[ "ǂThe ǂeffects of physical activity on anthropometric, cardiovascular, metabolic and biochemical parameters in patients with type 2 diabetes mellitus" ]
doctoralThesis
[ "" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151892/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1551/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21642" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/21683
123456789-21683.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1629/bdef:Content/download
no
Uticaj kombinovanog tretmana alogenim matičnim ćelijama iz masnog tkiva i hiperbaričnom oksigenacijom na progresiju eksperimentalnog gonartritisa kod pacova
The effect of combined treatment with allogeneic stem cells from adipose tissue and hyperbaric oxygenation on the progression of experimental gonartritis in rats
[ "Ljujić, Biljana" ]
[ "Matić, Aleksandar", "Gazdić Janković, Marina", "Srejović, Ivan", "Petronijević, Milan" ]
Jušković, Aleksandar
2023-09-06T12:19:24
[ "2023-09-06T12:19:24" ]
2022
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8670", "https://fedorakg.kg.ac.rs/fedora/get/o:1629/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21683" ]
[ "Blagotvorno dejstvo hiperbarične oksigenacije (HBO) u inflamatornim procesima čini ga atraktivnom vrstom lečenja hroničnog artritisa. Efekti kombinovane terapije zasnovane na primeni alogenih matičnih ćelija masnog tkiva (ADS) i HBO na progresiju osteoartritisa (OA) nisu u potpunosti istraženi. Aktuelna studija je istraživala efikasnost intraartikularne primene ADS u kombinaciji sa tretmanom HBO u modelu OA pacova. Model OA kod pacova indukovan je intraartikularnom injekcijom monojodoacetata (MIA) i 7 dana nakon primene MIA pacovi su podeljeni u osam grupa: zdrava kontrola (CTRL), OA, ADS, HBO, ADS+HBO21day, ADS+HBO28day, 0,9% NaCl, medijum za uzgajanje ćelija (MED). 1h106 ADS ubrizgana je u zglob kolena samostalno ili u kombinaciji sa HBO tretmanom. Rezultati lečenja su procenjeni radiografskom, histološkom analizom, specifičnim bojenjem zglobne hrskavice, određivanjem inflamatornih i pro/antioksidativnih markera. Kombinovani tretman značajno poboljšava regeneraciju hrskavice u kolenskom zglobu. Rtg skor oštećenja kolenskog zgloba je značajno smanjen u grupama ADS+HBO21day i ADS+HBO28day u poređenju sa OA. Međutim, pozitivan efekat u ADS+HBO28day grupi bio je veći nego u ADS+HBO21day grupi. Zglobna hrskavica je bila relativno normalna u grupi ADS+HBO28day, ali umerena degeneracija je primećena u ADS+HBO21day u poređenju sa OA grupom. Ovi nalazi su u skladu sa histopatološkim rezultatima. Znatno niži nivo O2 −. primećeno je u grupi ADS+HBO28day, ali i viši nivo NO u poređenju sa ADS+HBO21day grupom. Štaviše, u grupi ADS+HBO28day primećene su značajno veće koncentracije IL-10, ali nije bilo značajne razlike u proinflamatornim citokinima u uzorcima seruma. Ovi rezultati ukazuju da je jedna intraartikularna injekcija ADS u kombinaciji sa HBO efikasno ublažila progresiju OA." ]
[ "Hyperbaric oxygenation therapy (HBO) is a promising kind of treatment for chronic rheumatoid arthritis because of its positive effects on inflammatory processes. Furthermore, the effects of combination therapy based on adipose stem cells (ADS) and HBO on the development of osteoarthritis (OA) have not been thoroughly studied. The goal of the current investigation was to determine if intra-articular injections of ADS and HBO were effective in treating a rat OA model. The OA rat model was induced by intra-articular injection of monoiodoacetate (MIA), and 7 days after MIA application, rats were divided into eight groups: healthy (CTRL), OA, ADS, HBO, ADS+HBO21day, ADS+HBO28day, 0,9% NaCl, medium (MED). In the knee joint, alone or in combination with HBO, 1x106 ADS was administered. Results of treatment were assessed using articular cartilage specific staining, histological and radiographic analysis and determining of inflammatory and pro/antioxidative markers ADS and HBO together promoted cartilage regeneration in the knee joint. In comparison to the OA, the Rtg score for knee joint damage was significantly lower in the HBO+ADS21day and HBO+ADS28day groups. The HBO+ADS28day group experienced a bigger favorable impact than the HBO+ADS21day group. Cartilage in the HBO+ADS28day group was normalbut moderate degeneration was observed in ADS+HBO21day compared to OA group. These results concur with the histological findings. HBO+ADS28day group had a lower O2 level than HBO+ADS21day group, but a higher NO level and greater IL-10 concentrations, although there was no discernible difference in proinflammatory cytokine levels in serum samples. An intra-articular injection of ADS and HBO effectively slowed the progression of OA." ]
application/pdf
sr
Универзитет у Крагујевцу, Факултет медицинских наука
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Крагујевцу
[ "adipozne matične ćelije", "hiperbarična oksigenacija", "osteoartritis", "natrijum jodoacetata", "pacovi" ]
[ "ADMSCs", "HBO", "monoiodoacetate", "osteoarthritis", "rats" ]
[ "Uticaj kombinovanog tretmana alogenim matičnim ćelijama iz masnog tkiva i hiperbaričnom oksigenacijom na progresiju eksperimentalnog gonartritisa kod pacova" ]
[ "The effect of combined treatment with allogeneic stem cells from adipose tissue and hyperbaric oxygenation on the progression of experimental gonartritis in rats" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151851/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1629/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21683" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21628
123456789-21628.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1597/bdef:Content/download
no
Građanska neposlušnost i ostvarivanje ljudskih prava
Civil disobedience and realization of human rights
[ "Đorđević, Srđan" ]
[ "Matić, Dejan", "Vučković, Jelena", "Ćorić, Dragana" ]
Ivković, Nikola
2023-09-06T12:17:50
[ "2023-09-06T12:17:50" ]
2022
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8638", "https://fedorakg.kg.ac.rs/fedora/get/o:1597/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21628" ]
[ "Predmet analize je odnos ljudskih prava i građanske neposlušnosti. Istraživanjem, ovaj odnos otvara neka od ključnih pitanja teorije prava. Kroz prizmu relacije između teorijskih pojmova, prirodnog i pozitivnog prava, ukazuje se na genezu razvoja, uticaja i uklapanja faktičkog i normativnog u konstitucijama svetske istorije. Razmatranjem društvenih okolnosti prilikom dostizanja odnosa društvene realnosti i procedure u okviru svetskog razvoja opštih normi ljudskih prava, posmatra se geneza razvoja, ali i mesto građanske neposlušnosti u sociološkim previranjima. Prvi deo disertacije predstavlja istraživački pokušaj da se sagleda dinamički termin i pojam ljudskih prava. U okviru ovog dela postavlja se pitanje političkog i univerzalnog shvatanja ljudskih prava. Odgovorima, dolazi se do potpunog shvatanja termina i pojma ljudskih prava u pravnom aspektu. Drugi deo je fokusiran na analizu termina i elemenata pojma građanske neposlušnosti. Nakon sagledavanja geneze, koja se prepliće sa pojmom ljudskih prava, analizira se teorijski aspekt građanske neposlušnosti. Savremene teorije otvaraju dimenziju praktičnog aspekta u delu pravosudne funkcije. Na tom polju, posmatra se i odnos anglosaksonskog i kontinetalnog pravnog sistema. Kako bi se i ovaj aspekt do kraja demistifikova, društveni uslovi i šire kulturološki imaju svoju snagu uticaja na analizirane procese. U tom smislu procesna dimenzija predmetnog proučavanja dobija na značaju. Na kraju, zaključuje se o preporukama i načinima kako bi iskazana saznanja trebalo usmeriti u pravcu praktičnih domenta. Kako bi se ostvarilo što veće saglasje između prirodnog i pozitivnog prava, trebalo bi konstantno razmatrati o približavanju teorije i prakse. Posebno u odnosima dva velika pravna sistema, pažljiva analiza i korišćenje dobrih rešenja nekog od pravaca, mora biti evidentirana od strane doktrine." ]
[ "The subject of analysis is the relationship between human rights and civil disobedience. Through research, this relationship opens up some of the key questions of legal theory. Through the prism of the relationship between theoretical concepts, natural and positive law, the genesis of development, influence and fitting of the factual and the normative in the constitutions of world history is pointed out. By considering the social circumstances when reaching the relationship between social reality and procedure within the world development of general norms of human rights, the genesis of development is observed, but also the place of civil disobedience in sociological turmoil. The first part of the dissertation represents a research attempt to look at the dynamic term and notion of human rights. Within this part, the question of the political and universal understanding of human rights is raised. With the answers, a complete understanding of the term and concept of human rights in the legal aspect is reached. The second part is focused on the analysis of terms and elements of the concept of civil disobedience. After looking at the genesis, which is intertwined with the concept of human rights, the theoretical aspect of civil disobedience is analyzed. Modern theories open the dimension of the practical aspect in part of the judicial function. In this field, the relationship between the Anglo-Saxon and continental legal systems is also observed. In order to fully demystify this aspect, social conditions and broader cultural ones have their own power of influence on the analyzed processes. In this sense, the process dimension of the subject study gains importance. In the end, it is concluded about recommendations and ways that the knowledge presented should be directed in the direction of practical domains. In order to achieve the greatest possible agreement between natural and positive law, we should constantly consider the convergence of theory and practice. Especially in the relations of two large legal systems, a careful analysis and use of good solutions of one of the directions must be recorded by the doctrine." ]
application/pdf
sr
Универзитет у Крагујевцу, Правни факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Крагујевцу
[ "građanska neposlušnost", "ljudska prava", "prirodno pravo", "pozitivno pravo", "procesni subjekti", "kontinentalni sistema", "anglosaksonski sistem" ]
[ "civil disobedience", "human rights", "natural law", "positive law", "procedural subjects", "continental system", "Anglo-Saxon system" ]
[ "Građanska neposlušnost i ostvarivanje ljudskih prava" ]
[ "Civil disobedience and realization of human rights" ]
doctoralThesis
[ "BY" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151906/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1597/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21628" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21627
123456789-21627.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1550/bdef:Content/download
no
Parlamentarna kontrola državne uprave u Republici Srbiji
Parliamentary control of state administration in the Republic of Serbia
[ "Bataveljić, Dragan" ]
[ "Vučković, Jelena", "Petrov, Vladan", "Jovanović, Zoran" ]
Kovačević, Anika
2023-09-06T12:17:49
[ "2023-09-06T12:17:49" ]
2022
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8594", "https://fedorakg.kg.ac.rs/fedora/get/o:1550/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21627" ]
[ "Apstrakt: Predmet istraživanja doktorske disertacije je parlamentarna kontrola državne uprave u Republici Srbiji. Pod predmetom parlamentarne kontrole podrazumeva se kontrola zakonitosti akata i radnji državne uprave, ali i kontrola njihove celishodnosti. Specifičnost upravne delatnosti ogleda se u dosta širokoj slobodi, kojom raspolažu organi uprave, naročito u vršenju diskrecione vlasti. Zbog toga, prilikom kontrole upravne vlasti, poseban značaj pripada pitanju ocene celishodnosti rada uprave. Politička kontrola usmerena ka vladavini prava i uspostavljanju pravne, a ne partijske države. Ona treba da dopunjava pravnu kontrolu, jer imaju isti cilj. Parlamentarna kontrola spaja oba ova oblika kontrole i predstavlja ključnu formu institucionalizovane kontrole. Ovde parlament ceni da li uprava sprovodi postavljenu politiku i ostvaruje određene ciljeve uspostavljene pravnim poretkom, odnosno da li vrši diskreciona ovlašćenja u skladu sa javnim interesom, kako to parlament smatra da bi bilo celishodno. Cilj istraživanja jeste analiza svih oblika i mehanizama parlamentarne kontrole uprave, kako komparativno, tako i u Republici Srbiji, a to su: poslanička pitanja, obaveštenja i objašnjenja, interpelacija, glasanje nepoverenje vladi, parlamentarni odbori, javno slušanje, izveštaji organa, organizacija i tela i kontrola budžeta kao mehanizam parlamentarne kontrole. Potrebno je istaći da vanpravni činioci mogu, ponekad, i znatno snažnije da utiču na rad organa uprave, nego što to čine pravni činioci. Zbog toga je istraživanje političke kontrole uprave neophodno radi sagledavanja celokupnog sistema kontrole nad upravnom vlasti, a domet i efikasnost iste je od velikog značaja za dalji proces stvaranja odgovorne i dobre javne uprave, kao i proces očuvanja dostignutog nivoa i dogradnje pravne države." ]
[ "Abstract: The subject of research of this doctoral dissertation is parliamentary control of state administration in the Republic of Serbia. The notion of parliamentary control implies the control of the legality of acts and activities of state administration, as well as the control of their expediency. The specificity of the administration’s activity is seen in quite a broad form of freedom, which administrative bodies have, especially in enacting discretionary power. Therefore, when controlling the administrative power, special significance is given to the matter of the assessment of expediency of the administration’s work. Political control, directed at the rule of law and the establishment of a legal, and not partisan state, needs to complement legal control, because they have the same goal. Parliamentary control joins both these forms of control and it represents the key form of institutionalized control. Here the parliament assesses if the administration is carrying out the defined policies and achieving certain goals defined by the legal order, i.e. if it is enacting its discretionary authorizations in accordance with public interest, in a way in which the parliament would see it as expedient. The goal of the research is to analyze all forms and mechanisms of parliamentary control of the administration, both comparatively and in the Republic of Serbia, and these are: parliamentary questions, notices and explanations, interpellation, vote of no confidence in the government, parliamentary boards, public hearing, reports of certain bodies, organizations and bodies, and budget control as a mechanism of parliamentary control. It is necessary to point out that non-legal factors may sometimes impact the work of the administrative bodies even more strongly than legal factors. That is why the research of political control of the administration is necessary in order to see the entire system of control over the administrative power, while its range and efficiency are of great importance for the further process of creation of a responsible and good public administration, as well as the process of preserving the achieved level and improving the state of law." ]
application/pdf
sr
Универзитет у Крагујевцу, Правни факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Крагујевцу
[ "Parlament", "državna uprava", "kontrola", "politička odgovornost", "kontrolni mehanizmi", "parlamentarni odbori", "kontrola budžeta" ]
[ "Parliament", "state administration", "control", "political responsibility", "control mechanisms", "parliamentary boards", "budget control" ]
[ "Parlamentarna kontrola državne uprave u Republici Srbiji" ]
[ "Parliamentary control of state administration in the Republic of Serbia" ]
doctoralThesis
[ "BY" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151907/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1550/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21627" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
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[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21626
123456789-21626.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1548/bdef:Content/download
no
Uticaj vršenja poslova policije na spečavanje kriminaliteta
Effect of policing on crime prevention
[ "Banović, Božidar" ]
[ "Ilić, Goran", "Soković, Snežana", "Turanjanin, Veljko" ]
Šetka, Gojko
2023-09-06T12:17:47
[ "2023-09-06T12:17:47" ]
2022
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8592", "https://fedorakg.kg.ac.rs/fedora/get/o:1548/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21626" ]
[ "Apstrakt: U radu se razmatra uticaj vršenja poslova policije na sprečavanje kriminaliteta. Cilj ove disertacije je utvrđivanje kvaliteta i načina vršenja poslova policije, kvaliteta saradnje između policije i tužilaštva, te kvaliteta odnosa (saradnje) između policije i građana, od čega u velikoj meri zavisi vršenje poslova policije i efikasnost policije u sprečavanju kriminaliteta. Isto tako, deo cilja disertacije se odnosi na prognozu primene policijsko-obaveštajnog modela u policiji i njegovog uticaja na vršenje njenih poslova, te na sprečavanje kriminaliteta. Takođe, u disertaciji se nastojalo doći do saznanja o svim važnim činiocima koji utiču na efikasnost policije u pogledu sprečavanja kriminaliteta, kao i da se uoče najznačajniji problemi u funkcionisanju policije. Cilj ovog rad je usmeren i na unapređenje organizovanja procesa rada u policiji, što bi trebalo dovesti do efikasnijeg vršenja njenih poslova. U vezi s tim, sprovedeno je istraživanje, gde su kao instrument za prikupljanje podataka korišćene dve ankete, a ukupan uzorak je iznosio 704 ispitanika. Rezultati do kojih se došlo ukazuju na činjenicu da policija u svom radu nije u dovoljnoj meri usmerena na obavljanje njenih poslova kojima se doprinosi prevenciji kriminaliteta, te da saradnja između policije i tužilaštva nije na nivou koji je potreban za efikasno sprečavanje kriminaliteta. Isto tako, rezultati istraživanja su ukazali na to da poverenje građana u policiju nije na zadovoljavajućem nivou, te da postoji značajan broj faktora koji negativno utiču na kvalitet vršenja poslova policije koji se odnose na sprečavanje kriminaliteta. Na kraju rada su data rešenja (preporuke) za prevazilaženje uočenih problema, a koja bi trebala doprineti efikasnijem vršenju poslova policije i sprečavanju kriminaliteta." ]
[ "Abstract: This research paper considers the effect of policing on crime prevention. The aim of this dissertation is to determine the quality and manners of police work, the quality of cooperation between the police and the prosecutor's office, and also the quality of relationships (cooperation) between police and citizens, on which policing and police efficiency in crime prevention largely depend. Accordingly, a part of this dissertation's aim refers to presumable application of police intelligence model within the police, its effect on policing, as well as on crime prevention. Also, in this dissertation we tried to distinguish all the important factors that may affect efficiency of the police performance in terms of crime prevention, as well as to identify the most significant problems in police functioning. This paper is also aiming to target improvement of police work process organization, which should lead to more efficient performance of their tasks and duties. In this regard, a survey was conducted, whereat two questionnaires were applied as a data collection tool, with a total sample of 704 respondents. The survey results indicated that in their work the police were not sufficiently focused on such policing practices contributing to crime prevention, and that cooperation between the police and the prosecutor's office was not at the level required for effective crime prevention. Also, research results indicated that the confidence of citizens in the police was not at a satisfactory level, and that there were a significant number of factors negatively affecting the quality of policing related to crime prevention. At the end of the paper we presented solutions (recommendations) for overcoming of the problems identified, which should contribute to more efficient policing and crime prevention." ]
application/pdf
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Универзитет у Крагујевцу, Правни факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Крагујевцу
[ "" ]
[ "Police", "Policing", "Police powers", "Criminality", "Crime prevention", "Cooperation", "Prosecutor’s office", "Citizens", "Organization" ]
[ "Uticaj vršenja poslova policije na spečavanje kriminaliteta" ]
[ "Effect of policing on crime prevention" ]
doctoralThesis
[ "BY" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151908/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1548/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21626" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21680
123456789-21680.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1626/bdef:Content/download
no
Sindrom sagorevanja na radu i mentalno zdravlje kod zdravstvenih radnika tokom pandemije COVID-19
Burnout syndrome and mental health among healthcare workers during the COVID-19 pandemic
[ "Radmanović, Branimir" ]
[ "Jovanović, Mirjana", "Simić Vukomanović, Ivana", "Đorđević, Vladimir" ]
Safiye, Teodora
2023-09-06T12:19:21
[ "2023-09-06T12:19:21" ]
2022
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8667", "https://fedorakg.kg.ac.rs/fedora/get/o:1626/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21680" ]
[ "Uvod: Cilj ove disertacije bio je da kod zdravstvenih radnika ispitamo povezanost dimenzija sindroma sagorevanja na radu sa važnim osobinama ličnosti, sociodemografskim karakteristikama, uslovima rada, kao i uslovima života tokom pandemije COVID-19. Metod: Uzorak je obuhvatio 406 ispitanika (Ž=267), 141 lekara i 265 medicinskih tehničara. Korišćeni su instrumenti: Srpska verzija upitnika izgaranja na poslu, Kratka skala subjektivnog blagostanja, Kratka skala rezilijentnosti, Upitnik za procenu refleksivne funkcije, Skala depresivnosti, anksioznosti i stresa, kao i poseban upitnik kreiran za potrebe ovog istraživanja. Rezultati: U odnosu na zdravstvene radnike koji su radili u redovnim kliničkim uslovima, zdravstveni radnici koji su radili u COVID-19 zoni (N=203) imali su veći stepen izraženosti emocionalne iscrpljenosti (t=2,78, p<0,01) i depersonalizacije (t=2,91, p<0,01). Model regresije emocionalne iscrpljenosti objašnjava 52% njene varijanse. Emocionalnu iscrpljenost najviše povećavaju stres kao osobina ličnosti (ß=0,38, p<0,01), ženski pol (ß=0,30, p<0,01) i nedovoljno odmora nakon posla (ß=0,24, p<0,01). Model regresije depersonalizacije objašnjava 24% njene varijanse. Depersonalizaciju najviše povećava depresija kao osobina ličnosti (ß=0,24, p<0,01). Model regresije lične efikasnosti objašnjava 31% varijanse, a najvažniji prediktor je subjektivno blagostanje (ß=0,40, p<0,01). Zaključak: Dimenzije sindroma sagorevanja na radu su u neposrednoj vezi sa subjektivnim blagostanjem i osobinama koje ukazuju koliko su zdravstveni radnici skloni doživljavanju stresa i depresije." ]
[ "Introduction: The aim of this dissertation was to examine the relationship between dimensions of burnout syndrome with important personality traits, sociodemographic characteristics, working conditions, as well as living conditions among healthcare workers during the COVID-19 pandemic. Method: The sample included 406 respondents (female=267), 141 doctors and 265 medical technicians. The instruments used were: Serbian version of the burnout questionnaire, Short subjective well-being scale, Brief resilience scale, Reflective functioning questionnaire, Depression, anxiety and stress scale, as well as a special questionnaire created for the purpose of this research. Results: Compared to healthcare workers who worked in regular clinical conditions, healthcare workers who worked in the COVID-19 zone (N=203) had a higher degree of emotional exhaustion (t=2.78, p<0.01) and depersonalization (t=2.91, p<0.01). The regression model of emotional exhaustion explains 52% of its variance. Emotional exhaustion is increased the most by stress as a personality trait (ß=0.38, p<0.01), female gender (ß=0.30, p<0.01) and insufficient rest after work (ß=0.24, p <0.01). The depersonalization regression model explains 24% of its variance. Depersonalization increases the most with depression as a personality trait (ß=0.24, p<0.01). The regression model of personal accomplishment explains 31% of the variance, and the most important predictor is subjective well-being (ß=0.40, p<0.01). Conclusion: The dimensions of the burnout syndrome are directly related to subjective wellbeing and characteristics that indicate how prone healthcare workers are to experiencing stress and depression. Keywords: burnout syndrome, COVID-19, mental health, resilience, capacity for mentalizing, healthcare workers, subjective well-being" ]
application/pdf
sr
Универзитет у Крагујевцу, Факултет медицинских наука
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-sa/4.0/" ]
Универзитет у Крагујевцу
[ "sindrom sagorevanja na radu", "COVID-19", "mentalno zdravlje", "rezilijentnost", "kapacitet za mentalizaciju", "zdravstveni radnici", "subjektivno blagostanje" ]
[ "burnout syndrome", "COVID-19", "mental health", "resilience", "capacity for mentalizing", "healthcare workers", "subjective well-being" ]
[ "Sindrom sagorevanja na radu i mentalno zdravlje kod zdravstvenih radnika tokom pandemije COVID-19" ]
[ "Burnout syndrome and mental health among healthcare workers during the COVID-19 pandemic" ]
doctoralThesis
[ "BY-SA" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151854/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1626/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21680" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21541
123456789-21541.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30621/bdef:Content/download
no
Karakterizacija molekularnih osnova zaštitnog efekta egzopolisaharida laktobacila u modelu DA pacova izloženih produženom delovanju kadmijuma(II)
Characterization of the molecular basis of the protective effect of the exopolysaccharides from lactobacilli in the DA rats mod el exposed to prolonged cadmium(ii) exposure
[ "Živković, Milica" ]
[ "Jovčić, Branko", "Lozo, Jelena", "Mirkov, Ivana", "Mutić, Jelena" ]
Brdarić, Emililja
2023-09-06T10:58:02
[ "2023-09-06T10:58:02" ]
2023-05-29
[ "https://eteze.bg.ac.rs/application/showtheses?thesesId=9210", "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/5248/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30621/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/121688329", "https://nardus.mpn.gov.rs/handle/123456789/21541" ]
[ "Kadmijum, široko rasprostranjen toksičan metal, izaziva brojne negativne zdravstvene efekte zbog čega je neophodno naći adekvatne načine zaštite od dejstva ovog metala. Poznato svojstvo nekih laktobacila da interaguju sa metalima se sve češće pripisuje prisustvu egzopolisaharida (EPS) na površini ćelije za koji je pokazano da može da formira komplekse sa jonima kadmijuma u vodenom rastvoru. Međutim, mehanizmi zaštitnog dejstva EPS na organizme nisu poznati. Među obećavajućim kandidatima iz naše laboratorijske kolekcije (BGLMM), se istakao EPS-AN8, izolovan i prečišćen iz soja Lactiplantibacillus plantarum BGAN8. In silico analiza genetičkih determinanti odgovornih za biosintezu EPS-AN8 i detaljna karakterizacija fizičko-hemijskih osobina je ukazala da je reč o heteropolisaharidu sa potencijalno visokim afinitetom za vezivanje kadmijumovih jona. Ispitivanja in vitro su pokazala da EPS-AN8 štiti intestinalne epitelne ćelije od negativnog dejstva kadmijuma(II), tako što snižava parametre oksidativnog stresa i inflamacije u ćelijama, i čuva međućelijske veze. S obzirom da su, za opštu populaciju, glavni izvori kadmijuma hrana i piće, ispitivanje in vivo zaštitnih efekta EPS-AN8 je praćeno u pacovima koji su paralelno izloženi produženom, oralnom unosu niže (5 mg/L) i više (50 mg/L) doze jona kadmijuma. Pri unosu EPS- AN8 zabeleženo je smanjeno deponovanje metala u tkivima, ublažavanje histoloških oštećenja duodenuma, jetre i bubrega, kao i sniženi parametri oksidativnog stresa i inflamacije u duodenumu. Dodatno, primećene su i slabije izražene promene u sastavu mikrobiote duodenuma karakteristične za oralnu izloženost kadmijumu(II). Pretpostavljeni mehanizmi uspostavljene zaštite mogu biti bazirani na ogromnom kapacitetu EPS-AN8 za vezivanje kadmijumovih jona i/ili njegovim direktnim effektom na ublažavanje oštećenja izazvanih kadmijumom." ]
[ "Cadmium, a widespread toxic metal, causes numerous negative health effects, leading to the urgent need to find adequate protection. The known ability of some lactobacilli to interact with metals is increasingly attributed to the presence of the surface exopolysaccharides (EPS). It has been shown that EPS could form complexes with cadmium ions in aqueous solution. However, the possible mechanisms of the EPS-mediated protection in organisms are not known. Among the others candidates from our laboratory collection (BGLMM), EPS-AN8, derived from the strain Lactiplantibacillus plantarum BGAN8, stood out. In silico analysis of the genetic background responsible for EPS-AN8 biosynthesis and characterization of the physicochemical properties indicated that EPS-AN8 is the heteropolysaccharide with a putative high affinity for binding cadmium. In vitro assays showed that EPS-AN8 protects intestinal epithelial cells from the deleterious effect of cadmium, by lowering the parameters of oxidative stress and inflammation in cells, and maintaining intercellular junctions. For the general population, the main source of cadmium is diet. Orally given EPS-AN8, and exposure of rats to prolonged, oral intake of lower (5 mg/L) and higher (50 mg/L) dose of cadmium(II) resulted in decreased body burden of this metal, lowered level of histological damages in the duodenum, the liver and the kidneys and reduced parameters of oxidative stress and inflammation. Additionally, EPS-AN8 led to less pronounced cadmium induced changes of the duodenal microbiota composition. The possible mechanisms of the EPS-AN8 established protection may be based on its enormous capacity to adsorb cadmium ions and/or its direct effect to mitigate cadmium-provoked damages." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "kadmijum", "egzopolisaharidi laktobacila", "oksidativni stres", "inflamacija", "intestinalna barijera", "mikrobiota duodenuma" ]
[ "cadmium", "exopolysaccharides from lactobacilli", "oxidative stress", "inflammation", "intestinal barrier", "duodenal microbiota" ]
[ "Karakterizacija molekularnih osnova zaštitnog efekta egzopolisaharida laktobacila u modelu DA pacova izloženih produženom delovanju kadmijuma(II)" ]
[ "Characterization of the molecular basis of the protective effect of the exopolysaccharides from lactobacilli in the DA rats mod el exposed to prolonged cadmium(ii) exposure" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151543/Disertacija_13671.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152439/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30621/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21541" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21664
123456789-21664.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1604/bdef:Content/download
no
Efekti Nd:YAG laser iridotomije na intraokularni pritisak, oštrinu vida, promene u vidnom polju i morfologiju papile vidnog živca kod bolesnika sa primarno zatvorenim komornim uglom
Effects of Nd:YAG laser iridotomy on intraocular pressure, visual acuity, visual field changes, and morphology of optic nerve head in patients with primary angle closure
[ "Srećković, Sunčica" ]
[ "Petrović, Nenad", "Milisavljević, Slobodan", "Resan, Mirko" ]
Paunović, Svetlana
2023-09-06T12:19:01
[ "2023-09-06T12:19:01" ]
2022
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8645", "https://fedorakg.kg.ac.rs/fedora/get/o:1604/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21664" ]
[ "Uvod/Cilj: Prikazati značaj Laser periferne iridotomije (LPI) kod bolesnika sa akutnim primarnim zatvaranjem komornog ugla (APAC) u prevenciji progresije u primarni glaukom zatvorenog ugla (PACG) kao i pojavi APAC na parnom oku. Metode: U istraživanje je uključeno 40 bolesnika. LPI je rađena obostrano, na oku sa APAC i na parnom zdravom oku. Starost pacijenata je od 40-79 godina kod kojih je bio prisutan pupilarni blok na jednom oku i praćene su promene oštrine vida, intraokularnog pritiska (IOP), prisustva perifernih prednjih sinehija (PAS), širine komornog ugla, ekskavacije papile očnog živca (Ver C/D rat), vidnog polja (MD) indeksa, dužine trajanja simptoma, komplikacije i progresija bolesti. Rezultati: Prosečna oštrina vida na zahvaćenim očima pre LPI je bila 0,33±0,21 dok je nakon godinu dana bila 0,67±0,22 . Širina komornog ugla na zahvaćenom oku je bila 0,15± 0,36, a na parnom oku 1,2±0,41. Nakon 12 meseci na oku sa APAC 0,85 ± 0,36, a na parnom oku 1,9 ± 0,36 . Prosečna vrednost IOP na oku sa APAC je bila 56,05 ± 5,07 mmHg, a nakon godinu danaa 18,1±4,53 . Promena Ver C/D rat na oku bez progresije je bila 0,4 ± 1. Nakon 12 meseci na oku sa progresijom je bila 0,65 ± 0,06 . Prisustvo PAS nije bilo statistički značajno, kao ni pojava komplikacija, za razliku od dužine trajanja simptoma i vrednosti IOP pre početka lečenja. GHT test je bio pozitivan kod 15 pacijenata na zahvaćenom oku sa APAC. Bez medikamentozne terapije je bilo 40 % pacijenata od kojih je kod 3 pacijenta urađena trepanotrabekulektomija. Zaključak: Istovremena LPI je pokazala efikasnost u terapiji kod pacijenata sa APAC, kao i prevenciji na parnom zdravom oku." ]
[ "Introduction/Aim. To point out the importance of Laser Peripheral Iridotomy (LPI) in patients with acute primary angle closure (APAC) in preventing primary angle closure glaucoma (PACG) progression and APAC in the fellow eye. Methods. The research included 40 patients. LPI was performed bilaterally, on the APAC affected eye and the healthy fellow eye. The patients ranging in age from 40 to 79 years who had the pupillary block in an eye and were monitored for changes in visual acuity, intraocular pressure (IOP), the presence of peripheral anterior synechiae (PAS), optic nerve papillary excavation (Ver C/D rat), visual field (MD) index, duration of symptoms, complications and disease progression. Results. The average visual acuity of the affected eyes before LPI was 0,33±0,21while after one year it was 0,67±0,22. The angle width of the affected eye was 0.15 ± 0.36, and 1.2 ± 0.41 of the fellow eye. After 12 months, the measurements taken were 0.85 ± 0.36 for the affected eye and 1.9 ± 0.36 for the fellow eye. The mean value of IOP in the affected eye was 56,05 ±5,07 mmHg, while after one year it was18,1±4,53. The change in Ver C/D ratio in the eye without progression was 0.4±1. After 12 months in the eye with progression it was 0.65±0.06.The presence of PAS was not statistically significant, nor was the occurrence of complications in contrast to the duration of symptoms and values of IOP before treatment.The GHT results were positive in 15 patients on the APAC affected eye. Drug therapy was not administered in 40 % of patients, of which 3 patients underwent trabeculectomy. Conclusion. Concomitant LPI has shown efficacy in patients with APAC, as well as for prevention in healthy fellow eyes." ]
application/pdf
sr
Универзитет у Крагујевцу, Факултет медицинских наука
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Крагујевцу
[ "laser periferna iridotomija", "akutno primarno zatvaranje ugla", "glaukom" ]
[ "laser peripheral iridotomy", "acute primary angle closure", "glaucoma" ]
[ "Efekti Nd:YAG laser iridotomije na intraokularni pritisak, oštrinu vida, promene u vidnom polju i morfologiju papile vidnog živca kod bolesnika sa primarno zatvorenim komornim uglom" ]
[ "Effects of Nd:YAG laser iridotomy on intraocular pressure, visual acuity, visual field changes, and morphology of optic nerve head in patients with primary angle closure" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151870/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1604/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21664" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21718
123456789-21718.pdf
yes
no
no
Претклинички и клинички аспекти токсичности прегабалина са аналитичком потврдом
Preclinical and clinical aspects of pregabalin toxicity with analytical confirmation
[ "Ђорђевић, Снежана" ]
[ "Килибарда, Весна", "Вучинић, Славица", "Стојановић, Звездана", "Перковић Вукчевић, Наташа", "Ћурчић, Маријана" ]
Антуновић, Mарко
2023-09-29T11:59:29
[ "2023-09-29T11:59:29" ]
2023-07-25
[ "https://nardus.mpn.gov.rs/handle/123456789/21718" ]
[ "Прегабалин је психоактивни лек из групе габапентиноида који традиционално није коришћен у циљу злоупотребе. Међутим, последњих година све је више доказа који говоре у прилог наглог пораста терапијске употребе, акутних тровања и злоупотребе овог лека. Као резултат, прегабалин је у многим земљама класификован као контролисана психоактивна супстанца. Ипак, досадашњи подаци, у којима је анализирана токсичност прегабалина, су ограничени. Циљеви овог рада су били испитивање учесталости акутних тровања и (зло)употребе прегабалина као и утврђивање главних социо-демографских карактеристика и клиничких манифестација тровања код испитиване популације пацијената лечених у Центру за контролу тровања Војномедицинске академије (ЦКТ ВМА). У експерименталном делу истраживања су испитиване интеракције прегабалина и клоназепама, комбинације лекова која је била најчешћа у акутним тровањима, посебно у случајевима злоупотребе. Ретроспективном анализом података ЦКТ ВМА, у периоду између 2012. и 2022. године је забележено 357 (95,5%) случајева тровања прегабалином и 17 (4,5%) случајева тровања габапентином. У високом проценту детектована је злоупотреба прегабалина (27,8%), најчешће код пацијената мушког пола, млађе животне доби који из мигрантске популације. Изолована тровања прегабалином су у највећем броју случајева била лаког степена (86,6%), док је коингестија психоактивних лекова и супстанци у око 37% доводила до тровања средње тешког и тешког степена. Иако су утврђене интериндивидуалне варијације код пацијената са различитим степеном тежине тровања, статистичком анализом података добијен је висок степен корелације ингестиране дозе и концентрације прегабалина са степеном тежине тровања и дужином трајања хоспитализације. Применом теста спонтане локомоторне активности и ротарод теста, утврђено је да прегабалин у значајној мери потенцира седативне и атаксичне ефекте клоназепама код пацова. Применом аналитичких метода за одређивање концентрације прегабалина и клоназепама у плазми и хомогенатима ткива мозга пацова, нису утврђене фармакокинетичке интеракције ова два лека. У циљу смањења ризика од злоупотребе прегабалина потребна је боља едукација здравствених радника и пацијената, строжији надзор прописивања и издавања прегабалина, нарочито пацијентима код којих постоји ризик од злоупотребе." ]
[ "" ]
Универзитет одбране, Војномедицинска академија - Медицински факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc/4.0/" ]
Универзитет одбране
[ "габепентиноиди", "акутнa тровања", "злоупотреба", "клоназепам", "психоактивне супстанце" ]
[ "" ]
[ "Претклинички и клинички аспекти токсичности прегабалина са аналитичком потврдом" ]
[ "Preclinical and clinical aspects of pregabalin toxicity with analytical confirmation" ]
doctoralThesis
[ "BY-NC" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/153521/bitstream_153521.pdf", "http://nardus.mpn.gov.rs/bitstream/id/153522/bitstream_153522.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21718" ]
sr
[ "Медицина" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21721
123456789-21721.pdf
yes
yes
no
Tehnologija, politika i ekologija u makedonskoj savremenoj umetnosti kao odraz transdisciplinarnosti i transmedijalnosti
[ "Milosavljević, Angelina" ]
[ "Šuvaković, Miodrag", "Stanković, Maja", "Filipović, Andrija", "Dimitrova, Elizabeta" ]
Frangovska, Ana
2023-10-03T12:11:42
[ "2023-10-03T12:11:42" ]
2023-09-28
[ "https://singipedia.singidunum.ac.rs/izdanje/44399-tehnologija-politika-i-ekologija-u-makedonskoj-savremenoj-umetnosti-kao-odraz-transdisciplinarnosti-i-transmedijalnosti", "https://nardus.mpn.gov.rs/handle/123456789/21721" ]
[ "Predmet ove disertacije je analiza transdisciplinarnosti i transmedijalnosti u makedonskoj savremenoj umetnosti (od makedonske državotvorne samostalnosti 1990-ih do danas), istraživana i sondirana kroz perspektivu preklapanja i višeslojnih relacija sa tehnologijom, politikom i ekologijom. Makedonska savremena umetnost se razvija u specifičnim političkim okolnostima, sa socio-političkom neravnotežom, tranzicijom koja još uvek traje i uslovima koji doprinose neprolaznom upitnom identitetskom diskursu. Ovakva društveno-politička situacija predstavlja plodno tlo za razvoj političke umetnosti i razne vidove transtaktičke umetnosti u relaciji sa politikom. U odnosu na otvorenost za nove medije i tehnološke novitete, eksperimente (biološke, genetske, naučne itn.) i njihovu primenu, posmatrano globalno, mora se naglasiti da je makedonska savremena scena nedovoljno novomedijski razvijena, što je rezultat nedovoljnih finansijskih kapaciteta i umetnika i umetničkih institucija koje prezentuju i promovišu savremenu umetnost. Zato, tehnološki aspekt makedonske transtaktičke umetnosti je razmatran u konstantnoj spregi izmeću izazova savremenog vremena i lokalnih mogućnosti. I treći aspekt analize transdisciplinarnosti i transmedijalnosti makedonske savremene umetnosti u disertaciji biće ekologija, koja zajedno sa aspektima zaštite životne sredine i samoodrživosti postale su česte teme interesovanja umetnika čije su namere da podignu svest i izraze lični revolt protiv ljudskog egzistencijalnog apsurda. Ova doktorska disertacija biće prvo istraživanje ovakvog tipa o umetnosti u Severnoj Makedoniji, i time će njena jedinstvenost doprineti otkrivanju novogdiskursa u razvoju makedonske savremene umetnosti u kontekstu transdisciplinarnosti i transmedijalnosti. Njen naučni doprinos je u spoznaji problematike disertacije, koja se odvija unutar predmeta istraživanja te pojave u makedonskoj savremenoj umetnosti, te njenom opisu, klasifikaciji, tipologizaciji, otkriću i analizi slučaja. Pomoću teorijskoj i deduktivnoj analizi trud polazi od opšteg do posebnog, od globalnog do lokalnog. Definisanjem hronološkog okvira i termine savremenost i savremena umetnost kroz primenjlive teorije važnih savremenih filozofa (Teri Smit, Boris Grojs, Pjotr Pjotrovski, Ker Bišop, Piter Ozborn i dr.), dovelo je do teorijsku opravdanost bavljenja ovom vrstom istraživanja. Dalje u radu, primenom empirijske, istorisko-sociološke analize, komparacijom, sistematizacijom i klasifikacijom, posmatranja ili primenom vizuelnih saznanja o određenoj pojavi, studije slučaja itd. došlo se do potvrćivanju postavljenih hipoteza o transdisciplinarnosti i transmedijalnosti u makedonskoj savremenoj umetnosti i time, potvrđivanju njene pozicioniranosti u okviru globalnih tendencija ka transtaktičnosti." ]
[ "" ]
Универзитет Сингидунум, Факултет за медије и комуникацију (ФМК)
[ "" ]
[ "openAccess" ]
[ "" ]
Универзитет Сингидунум
[ "transdisciplinarnost", "transmedijalnost", "makedonska savr", "umetnost", "politika", "ekologija", "tehnologija" ]
[ "" ]
[ "Tehnologija, politika i ekologija u makedonskoj savremenoj umetnosti kao odraz transdisciplinarnosti i transmedijalnosti" ]
[ "" ]
doctoralThesis
[ "ARR" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/153532/bitstream_153532.pdf", "http://nardus.mpn.gov.rs/bitstream/id/153531/bitstream_153531.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21721" ]
sr
[ "Umetnost i mediji" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21720
123456789-21720.pdf
yes
yes
no
Telesni materijalizam, afekti i političko
[ "Blagojević, Jelisaveta" ]
[ "Šuvaković, Miodrag", "Vasiljević, Jelena" ]
Dimitrov, Slavčo
2023-10-03T12:07:22
[ "2023-10-03T12:07:22" ]
2023-09-22
[ "https://singipedia.singidunum.ac.rs/izdanje/44401-telesni-materijalizam-afekti-i-politicko", "https://nardus.mpn.gov.rs/handle/123456789/21720" ]
[ "U tezi se bavim konceptom političkog (le politique) istražujući njegovu složenu i konstitutivnu isprepletenost sa telesnošću, afektima i materijom. Centralni problem i pitanje mog istraživačkog nastojanja jeste kako možemo zamisliti i uprizoriti političko kao radikalnu razliku koja označava neutemeljen, kontingentan, bezdani i remetilački momenat koji o/ne/mogućuje samu utemeljenost društva, ukoliko bismo u središte našeg razumevanja političke ontologije postavili materijalnost tela koja formira svet i delatna je, dinamična, transformativna, ekscesivna i relaciona. Da bih sproveo taj projekat, postavio sam neke od ključnih filozofa post-utemeljivačkog filozofskog kanona, poput Žan-Lik Nansija, Ernesta Laklaua, Šantal Muf i Žaka Ransijera, u kritički dijalog sa transdisciplinarnim proučavanjima telesnog feminizma, novih materijalizama, studija afekata i tela. Ono političko obeležava, kao što tvrdim, ontologija tela, odnosno, afektivna i estetska ontologija. Forma, identitet i smisao zajednice su, dakle, u dosluhu sa stalno promenljivim i pluralnim odnosima između tela i njihovih praksi tvorenja smisla. Telo je mesto gde se bivstvovanje-u-zajedničkom (zajednica) otkriva kao telovanje-u-zajedničkom. Polazeći od ove primarne hipoteze, u svom radu predlažem da je uspostavljanje društvenog materijalna performativna praksa, to jest, samoorganizovana, složena i dinamična praksa materijalizacije shvaćene kao iterativne intra-aktivnosti koja proizvodi različite materijalne konfiguracije društvenog sveta i tela, otvorenihza neprestano antagonističko osporavanje. Političko je, kao što ću tvrditi, disenzualni princip koji sprečava zatvaranje zajednice i podelu tela i čulnog iskustva u njoj na osnovu određenog principa. Koristim metodologiju transdisciplinarnih i mešovitih metoda i nudim hermeneutičko čitanje i kritičku analizu koncepta političkog kako je on razvijen u radu četiri post-utemeljivačka politička filozofa, i pokrećem njihove konceptualne aparate difraktivnim čitanjem u odnosu na nove materijalizme i studije afekta/tela. Osim toga, posmatram konkretne studije slučaja koje se prožimaju s poljem umetničkih praksi (vizuelnih umetnosti), sa političkim akcijama i protestima i kulturalnom produkcijom.Istražujem umetničke radove umetnika Velimira Žernovskog i Feliksa Gonzalesa-Toresa, političke proteste u Severnoj Makedoniji poznate kao Šarena revolucija i subkulturnu i pank scenu u Ljubljani tokom 80-ih godina u vreme socijalizma. Nudim interpretativnu analizu i vizuelno čitanje ovih studija slučaja, posmatrajući različite vizuelne (fotografske, video),tekstualne i arhivske materijale." ]
[ "" ]
Универзитет Сингидунум, Факултет за медије и комуникацију (ФМК)
[ "" ]
[ "openAccess" ]
[ "" ]
Универзитет Сингидунум
[ "politčko", "politika", "policija", "politička ontologija", "an-arhija", "afekat", "strasti", "telo", "telesnost", "an-arhična tela", "zajednica", "bivstvovanje-u-zajedničkom", "telovanje-u-zajedničkom", "smisao/čulo", "estetika", "hegemonija", "relacionost", "performativnost", "društvena" ]
[ "" ]
[ "Telesni materijalizam, afekti i političko" ]
[ "" ]
doctoralThesis
[ "ARR" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/153529/bitstream_153529.pdf", "http://nardus.mpn.gov.rs/bitstream/id/153530/bitstream_153530.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21720" ]
sr
[ "Umetnost i mediji" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/20493
123456789-20493.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:25855/bdef:Content/download
no
Sinteza i strukturna karakterizacija novih cezijumskih i kalijumskih silikata sa elementima retkih zemalja
Synthesis and structural characterization of new cesium and potassium rare-earth silicates
[ "Kremenović, Aleksandar" ]
[ "Karanović, Ljiljana", "Stojanović, Jovica" ]
Dabić, Predrag
2022-06-01T15:53:53
[ "2022-06-01T15:53:53" ]
2022-03-24
[ "https://eteze.bg.ac.rs/application/showtheses?thesesId=8637", "https://fedorabg.bg.ac.rs/fedora/get/o:25855/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/63830537", "https://nardus.mpn.gov.rs/handle/123456789/20493" ]
[ "Predmet i ciljevi naučnog istraživanja ove doktorske disertacije su sinteza i strukturna karakterizacija novih cezijumskih i kalijumskih silikata sa elementima retkih zemalja. Istraživanja su izvedena u okviru sistema SiO2–REE2O3–XF, gde REE predstavlja trovalentni katjon elementa retkih zemalja (Sc, Y, Sm, Eu, Gd, Ho, Er, Tm, Yb, Lu), dok X predstavlja jednovalentni katjon alkalnih metala (K, Cs). Rad na disertaciji bio je fokusiran na sintezu monokristala, određivanje kristalnih struktura, kao i na kristalografsko i kristalohemijsko ispitivanje sintetisanih monokristala. Monokristali su sintetisani metodom rasta kristala iz visokotemperaturnih rastvora uz upotrebu fluksa. Kristalne strukture rešene su pomoću rendgenske difrakcije na monokristalu. Kvalitet monokristala proveravan je pomoću stereomikroskopa, dok je polarizacioni mikroskop korišten za posmatranje optičkih osobina. Rendgenska difrakcija na polikristalnom materijalu služila je za proveru faznog sastava. Skenirajuća elektronska mikroskopija (SEM) dopunjena sa energetsko-disperzivnom spektroskopijom (EDS) korištena je za određivanje morfoloških karakteristika i za semikvantitativno određivanje hemijskog sastava. U toku izrade disertacije određeno je osam (8) kristalnih struktura. Kristalna struktura Cs2ErSi6O14F predstavlja novi strukturni tip, dok je struktura Cs3ScSi6O15 prvi put rešena kao modulisana struktura. Jedinjenja Cs2HoSi4O10F, Cs2ErSi4O10F i Cs2TmSi4O10F izostrukturna su sa Cs2YSi4O10F. Za jedinjenje K3EuSi2O7 određena je kristalna struktura u prostornoj grupi P63/mcm i pokazalo se da je izostrukturno sa K3REESi2O7 (REE = Nd, Sm, Gd–Yb, Y, Y0,9Dy0,1, Sm i Er). Jedinjenja K3ErSi2O7 i K3YbSi2O7 kristališu u prostornoj grupi P63/mmc i izostrukturna su sa jedinjenjima K3REESi2O7 (REE = Lu, Sc i Y)." ]
[ "The subject and goals of the scientific research of this doctoral dissertation are the synthesis and structural characterization of new cesium and potassium rare-earth silicates. The investigation was carried out in the SiO2–REE2O3–XF system, where REE represents a trivalent cation of a rare-earth element (Sc, Y, Sm, Eu, Gd, Ho, Er, Tm, Yb, Lu), while X represents a monovalent cation of alkali metals (K, Cs). Dissertation work was focused on the synthesis of single crystals, the determination of crystal structures, as well as on crystallographic and crystallochemical investigation. Single crystals were synthesized by high-temperature flux crystal growth. The crystal structures were solved using single-crystal X-ray diffraction. The quality of single crystals was inspected using a stereomicroscope, while a polarizing microscope was used to observe the basic optical properties. The phase composition was tested using powder X-ray diffraction. Scanning electron microscopy (SEM) coupled with energy-dispersive spectroscopy (EDS) was used for morphological and chemical characterization. Eight (8) crystal structures were determined during the work on the dissertation. The crystal structure of Cs2ErSi6O14F represents a new structural type, while the crystal structure of Cs3ScSi6O15 was solved for the first time as a modulated structure. Compounds Cs2HoSi4O10F, Cs2ErSi4O10F and Cs2TmSi4O10F are isostructural with Cs2YSi4O10F. For the compound K3EuSi2O7, the crystal structure in the space group P63/mcm was determined and it was shown to be isostructural with K3REESi2O7 (REE = Nd, Sm, Gd–Yb, Y, Y0.9Dy0.1, Sm and Er). Compounds K3ErSi2O7 and K3YbSi2O7 crystallize in the space group P63/mmc and they are isostructural with K3REESi2O7 (REE = Lu, Sc and Y) compounds." ]
application/pdf
sr
Универзитет у Београду, Рударско-геолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "alkalni silikati elemenata retkih zemalja", "kristalna struktura", "sinteza metodom fluksa", "rendgenska difrakcija na monokristalu", "elementi retkih zemalja" ]
[ "alkali rare-earth silicates", "crystal structure", "flux synthesis", "single-crystal X-ray diffraction", "rare-earth elements" ]
[ "Sinteza i strukturna karakterizacija novih cezijumskih i kalijumskih silikata sa elementima retkih zemalja" ]
[ "Synthesis and structural characterization of new cesium and potassium rare-earth silicates" ]
doctoralThesis
[ "BY-NC-ND" ]
Кременовић, Aлександар; Карановић, Љиљана; Стојановић, Јовица; Дабић, Предраг; Синтеза и структурна карактеризација нових цезијумских и калијумских силиката са елементима ретких земаља; Синтеза и структурна карактеризација нових цезијумских и калијумских силиката са елементима ретких земаља;
[ "http://nardus.mpn.gov.rs/bitstream/id/144832/Disertacija_12331.pdf", "http://nardus.mpn.gov.rs/bitstream/id/144833/Izvestaj_Komisije_12331.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:25855/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_20493" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21593
123456789-21593.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30479/bdef:Content/download
no
Одрживи облици мултикултурализма у Србији
Sustainable forms of multiculturalism in Serbia
[ "Orlović, Slaviša" ]
[ "Bašić, Goran", "Spasojević, Dušan" ]
Milosavljević Stević, Milena D.
2023-09-06T11:03:51
[ "2023-09-06T11:03:51" ]
2023-05-10
[ "https://eteze.bg.ac.rs/application/showtheses?thesesId=9168", "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/5215/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30479/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/121671945", "https://nardus.mpn.gov.rs/handle/123456789/21593" ]
[ "У овој дисертацији истражује се улога политичких лидера националних мањина у различитим фазама развоја мултикултуралне политике. Савез комуниста je у бившој Југославије промовисао и имплементирао интегративни модел мултикултурализма, који је требало да представља одрживо политичко решење за управљање етнокултурним различитостима. Са сломом комунизма, интегративни мултикултурализам постао је неодржив модел, што се негативно рефлектовало на међуетничке односе. Процес етнификације политике током деведесетих година 20. века на простору бивше Југославије показао је да мултикултурализам, односно политике мултикултуралности немају капацитета да обезбеде интеграцију етничких односно националних група. Мултикултурализам односно механизми етнокултурне правде искоришћени су у сврху отцепљења федералних јединица које су биле у саставу Социјалистичке Федеративне Републике Југославије. После демократских промена 2000. године, најављен је нов приступ мањинској политици и институционализацији различитости уз уважавање међународних стандарда из области мањинске заштите, међутим услед селективне примене конституционалних мера и нерасположења политичких елита да пронађу прихватљива политичка решења за већину и мањину, развијен је мултикултурализам у сегрегативном облику као одрживо и прихватљиво решење за обе стране. У раду је присутна политичка интерпретација мултикултурализма која се односи на захтеве мањина – посебна административна и / или политичка права унутар националне државе. Полазна основа у истраживању је да политички лидери доприносе одржавању сегрегативног мултикултурализма у Србији, који врше стратешку есенцијализацију култура и политизују етничке идентитете мањинских група. Доминација примордијалистичког приступа етницитету код мањинских група у Србији олакшава политизацију њихових етничких идентитета. „Етнички предузетници“ подстичу осећања неједнакости, неправде и страха код мањинских група које представљају, како би успоставили политичку контролу над њима. Културна дистинктивност група представља важан ресурс који осигурава изборни успех партија националних мањина и укључивање политичких представника националних мањина у процес доношења одлука. У анализи теоријског објашњења мултикултурализма, тачније у либералној теорији мањинских права Вила Кимлике, наилазимо на покушај помирења етничког и либералног приступа нацији, где је признавање права за мањинске групе могуће уз уважавање културних и етничких критеријума. У процесу етномобилизације долази до комбиновања различитих приступа етницитету/нацији. Примордијалистички приступ нацији/етницитету има примат код већинског становништва и мањинских група у Србији. Из ове анализе дошло се до закључка да политички лидери националних мањина политизацијом примордијалистичких елемената етницитета доприносе сегрегацији мањинских група и одрживости сегрегативног мултикултурализма у Србији. Поред тога, политички лидери мањинских група противе се различитим механизмима интеграције (попут двојезичног образовања) означавајући их као инструменте асимилације. У односу на период деведесетих година 20. века, код партија националних мањина у Србији нема одступања у избору стратегија политичког деловања. Територијалне аутономије засноване на моноетничком принципу које су конципиране у програмима партија националних мањина (ДЗВМ, ДСВМ, СВМ, СДА Санџака, ПДД, ДПА) почетком деведесетих година чине садржину актуелних програма партија где доминирају идентитетска питања. Не захтевају све мањинске групе политичку и културну интеграцију. Појединим националним мањинама довољна је културна интеграција (попут Словака, Русина). Ипак, постоје националне мањине којима је неопходна политичка интеграција како би заштитили своје „социјеталне културе“ и избегли притиске асимилације (попут Буњеваца, Влаха, Рома). То имплицира да је политичка интеграција неоходан услов за културну интеграцију односно опстанак мањинских група. Институционални оквир омогућава политичку интеграцију националних мањина на националном и регионалном нивоу, док су на локалном нивоу развијени сегегативни односи међу мањинским групама, као и између већинског и мањинског становништва, који се могу превладати комбинацијом политичке и друштвене интеграције." ]
[ "This dissertation examines the role of political leaders of national minorities in various stages of multicultural policy development. The Union of Communists in the former Yugoslavia promoted and implemented an integrative model of multiculturalism, which was supposed to represent a sustainable political solution for the management of ethno-cultural differences. With the collapse of communism, integrative multiculturalism became an unsustainable model, which had a negative impact on inter-ethnic relations. The process of ethnicization of politics during the nineties of the 20th century in the territory of the former Yugoslavia showed that multiculturalism, i.e. policies of multiculturalism, do not have the capacity to ensure the integration of ethnic or national groups. Multiculturalism, i.e. mechanisms of ethnocultural justice, were used for the purpose of secession of the federal units that were part of the Socialist Federal Republic of Yugoslavia. After the democratic changes in 2000, a new approach to minority policy and the institutionalization of diversity was announced with respect for international standards in the field of minority protection, however due to the selective application of constitutional measures and the unwillingness of political elites to find acceptable political solutions for the majority and the minority, multiculturalism was developed in a segregated form as a sustainable and acceptable solution for both parties. The paper presents a political interpretation of multiculturalism that refers to the demands of minorities - special administrative and/or political rights within the national state. The starting point in the research is that political leaders contribute to the maintenance of segregative multiculturalism in Serbia, who carry out the strategic essentialization of cultures and politicize the ethnic identities of minority groups. The dominance of the primordialist approach to ethnicity among minority groups in Serbia facilitates the politicization of their ethnic identities. \"Ethnic entrepreneurs\" incite feelings of inequality, injustice and fear among the minority groups they represent in order to establish political control over them. The cultural distinctiveness of groups is an important resource that ensures the electoral success of national minority parties and the inclusion of political representatives of national minorities in the decision-making process. In the analysis of the theoretical explanation of multiculturalism, more precisely in the liberal theory of minority rights by Will Kimlika, we come across an attempt to reconcile ethnic and liberal approaches to the nation, where the recognition of rights for minority groups is possible while respecting cultural and ethnic criteria. In the process of ethnomobilization, different approaches to ethnicity/nation are combined. The primordialist approach to the nation/ethnicity has primacy among the majority population and minority groups in Serbia. This analysis led to the conclusion that the political leaders of national minorities contribute to the segregation of minority groups and the sustainability of segregative multiculturalism in Serbia by politicizing primordial elements of ethnicity. In addition, political leaders of minority groups oppose various mechanisms of integration (such as bilingual education) labeling them as instruments of assimilation. In relation to the period of the nineties of the 20th century, there are no deviations in the choice of political action strategies among the parties of national minorities in Serbia. Territorial autonomies based on the mono-ethnic principle, which were conceived in the programs of the parties of national minorities (DZVM, DSVM, SVM, SDA Sandžaka, PDD, DPA) in the early 1990s, form the content of the current programs of parties where identity issues dominate. Not all minority groups demand political and cultural integration. Cultural integration is sufficient for certain national minorities (such as Slovaks, Ruthenians). Nevertheless, there are national minorities who need political integration in order to protect their \"social cultures\" and avoid the pressures of assimilation (such as Bunjevacs, Vlachs, Roma). This implies that political integration is a necessary condition for cultural integration, that is, the survival of minority groups. The institutional framework enables the political integration of national minorities at the national and regional level, while at the local level, segregative relations between minority groups, as well as between the majority and minority populations, can be overcome through political and social integration." ]
application/pdf
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Универзитет у Београду, Факултет политичких наука
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Београду
[ "мултикултурализам", "националне мањине", "институционализација различитости", "етнокултурна правда", "интеграција" ]
[ "multiculturalism", "national minorities", "institutionalization of diversity", "ethnocultural justice", "integration" ]
[ "Одрживи облици мултикултурализма у Србији" ]
[ "Sustainable forms of multiculturalism in Serbia" ]
doctoralThesis
[ "BY" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151697/Disertacija_13631.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152445/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30479/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21593" ]
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https://nardus.mpn.gov.rs/handle/123456789/21573
123456789-21573.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30606/bdef:Content/download
no
Učestalost i faktori rizika preoperativne anksioznosti povezane sa anestezijom u zavisnosti od težine vaskularne hirurške procedure
The incidence and risk factors of anesthesia-related preoperative anxiety depending on the severity of the vascular surgical procedure
[ "Kalezić, Nevena" ]
[ "Šipetić-Grujičić, Sandra", "Davidović, Lazar", "Živaljević, Vladan", "Maksimović, Jadranka" ]
Jovanović, Ksenija
2023-09-06T11:01:15
[ "2023-09-06T11:01:15" ]
2023-05-04
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/5170/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9206", "https://fedorabg.bg.ac.rs/fedora/get/o:30606/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/121585417", "https://nardus.mpn.gov.rs/handle/123456789/21573" ]
[ "Preoperativna anksioznost predstavlja značajan problem tokom perioperativnog perioda, jer pored toga što može dovesti do brojnih postoperativnih komplikacija, može čak i ugroziti ishod hirurškog lečenja. Razni faktori mogu biti odgovorni za razvoj preoperativne anksioznosti, ali pogrešna uverenja bolesnika i slabo opšte znanje o anesteziji (i hirurgiji), koji dovode do nastanka osećaja straha u preoperativnom periodu, mogu doprineti njenom nastanku. Za procenu intenziteta preoperativne anksioznosti dostupne su brojne skale, ali, do sada, nijedna nije validirana za srpsku populaciju. Pored toga, broj studija koje su istraživale preoperativnu anksioznost kod vaskularnih hirurških bolesnika u savremenoj literaturi je ograničen. Stoga je prvi cilj ove studije prevod na srpski jezik, kulturološka adaptacija i validacija Amsterdamske skale za ispitivanje preoperativne anksioznosti i informisanosti (APAIS). Drugi cilj je bio identifikacija glavnih uzroka straha povezanih sa anestezijom, kao i procena znanja vaskularnih hirurških bolesnika o anesteziji i ulozi anesteziologa. Na kraju, imali smo za cilj da procenimo učestalost javljanja preoperativne anksioznosti kod vaskularnih hirurških bolesnika, identifikujemo nezavisne značajne faktore koji doprinose njenom nastanku i da ispitamo povezanost preoperativne anksioznosti sa nastankom postoperativnih komplikacija u vaskularnoj hirurgiji. MATERIJAL I METODE Nakon odobrenja Etičkog komiteta Medicinskog fakulteta Univerziteta u Beogradu (br. 1550/V-18), na Klinici za vaskularnu i endovaskularnu hirurgiju Univerzitetskog Kliničkog centra Srbije, u periodu od februara do oktobra 2019. godine, sprovedena je studija preseka. U studiju je uključeno 385 bolesnika, operisanih zbog oboljenja abdominalne aorte, karotidnih i perifernih arterija, u uslovima opšte i regionalne anestezije. Demografski podaci od interesa i pitanja u vezi sa strahovima bolesnika, znanjem i percepcijom anestezije prikupljeni su kroz intervjue. Ostali podaci od interesa za studiju, dobijeni su iz baze podataka koja se primenjuje u svakodnevnoj praksi i medicinske dokumentacije bolesnika..." ]
[ "reoperative anxiety is an important problem in perioperative settings, since it may lead to various postoperative complications and even compromise the outcome of surgical treatment. Various factors may trigger preoperative anxiety, but patients’ erroneous beliefs and poor knowledge of anesthesia (and surgery) which lead to preoperative fears may contribute to its occurrence. Although several tools are available for the identification of patients with preoperative anxiety, to date none of them have been adapted for the Serbian population. Furthermore, when it comes to vascular surgery patients, contemporary literature data are limited. Thus, the primary aim of the present study was to translate and validate the Amsterdam Preoperative Anxiety and Information Scale (APAIS) for the Serbian population. The second objective was to identify the main causes of anesthesia-related fears and to investigate patients’ knowledge and perceptions of anesthesia and anesthesiologists’ role. Finally, we aimed to investigate the incidence of preoperative anxiety, to determine predictors of its development, and to assess its relationship with postoperative complications in vascular surgery. MATERIALS AND METHODS A single-center cross-sectional study was conducted at the Clinic for Vascular and Endovascular Surgery, University Clinical Center of Serbia, following approval of the Ethics Committee of the Faculty of Medicine, University of Belgrade (No 1550/V-18). A total of 385 consecutive patients who have undergone surgery of the abdominal aorta, carotid and peripheral arteries, under both general and regional anesthesia, from February until October 2019, were included. Demographic data of interest and questions regarding patients’ fears, knowledge, and perceptions of anesthesia were collected in personal interviews. Other relevant clinical data were obtained from the database implemented in daily practice and patients’ medical records..." ]
application/pdf
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Универзитет у Београду, Медицински факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "preoperativna anksioznost", "APAIS skala", "postoperativne komplikacije", "strahovi bolesnika", "znanje o anesteziji", "uloga anesteziologa" ]
[ "preoperative anxiety", "APAIS scale", "postoperative complications", "patients’ fears", "anesthesia knowledge", "anesthesiologists’ role" ]
[ "Učestalost i faktori rizika preoperativne anksioznosti povezane sa anestezijom u zavisnosti od težine vaskularne hirurške procedure" ]
[ "The incidence and risk factors of anesthesia-related preoperative anxiety depending on the severity of the vascular surgical procedure" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151637/Disertacija_13667.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152456/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30606/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21573" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21538
123456789-21538.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30584/bdef:Content/download
no
Farmakogenetički markeri odgovora na terapiju tiopurinskim lekovima, metotreksatom i vinkristinom kod dece sa akutnom limfoblastnom leukemijom
Pharmacogenetic markers of response to therapy with thiopurine drugs, methotrexate, and vincristine in children with acute lymphoblastic leukemia
[ "Zukić, Branka" ]
[ "Brkušanin, Miloš", "Brajušković, Goran", "Čolović, Nataša", "Kotur, Nikola" ]
Ristivojević, Bojan
2023-09-06T10:57:50
[ "2023-09-06T10:57:50" ]
2023-04-03
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/5166/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9200", "https://fedorabg.bg.ac.rs/fedora/get/o:30584/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/116387593", "https://nardus.mpn.gov.rs/handle/123456789/21538" ]
[ "Akutna limfoblastna leukemija (ALL) je najčešći malignitet dečjeg doba. Napredak u lečenju usmeren je ka smanjenju pojave neželjenih efekata terapije, primenom principa farmakogenetike. U ovoj studiji istraživanje je bilo usmereno ka otkrivanju farmakogenetičkih i farmakotranskriptomskih markera odgovora na lekove koji su okosnica terapijskih protokola lečenja dece obolele od ALL (tiopurinski lekovi, metotreksat i vinkristin). Analizirani su uzorci krvi i koštane srži 139 dece sa ALL. Varijante u ispitivanim genima detektovane su metodom PCR-a i Sangerovim sekvenciranjem. Nivo ekspresije NUDT15 u mononuklearnim ćelijama određen je real-time PCR-om. Korelacija farmakomarkera sa kliničkim parametrima vršena je statističkim testovima. Odgovor na ispitivane lekove procenjivan je u retrospektivnim kliničkim studijama. Pokazano je da nivo ekspresije NUDT15 na prezentaciji bolesti ne korelira sa pojavom neželjenih efekata terapije tiopurinskim lekovima. U ispitivanoj grupi detektovano je 5 varijanti u genu NUDT15 koje nemaju patogeni efekat. Varijanta rs4149056 u genu SLCO1B1 je izučavana kao marker farmakokinetike i toksičnosti metotreksata. U ovoj studiji nije potvrđen njen klinički značaj. Analiziran je farmakogenetički potencijal varijanti u genima CYP3A5, CEP72, ACTG1, MIR3117 i MIR4481 kao markera odgovora na terapiju vinkristinom. Nije potvrđena korelacija ovih varijanti sa nastankom perifernih neuropatija kod dece sa ALL. Razvijen je predikcioni model za hepatotoksičnost izazvanu metotreksatom, zasnovan na poligenskom skoru rizika. Ova studija je doprinela znanjima koja vode ka personalizaciji lečenja dece obolele od ALL." ]
[ "Acute lymphoblastic leukemia (ALL) is the most common childhood malignancy. Treatment progress is aimed at reducing the occurrence of side effects of therapy, by applying the principles of pharmacogenetics. The aim of this study was to discover pharmacogenetic and pharmacotranscriptomic markers of response to drugs that are the backbone of therapeutic protocols for the treatment of children with ALL (thiopurine drugs, methotrexate and vincristine). Blood and bone marrow samples of 139 children with ALL were analysed. Variants in the tested genes were detected by PCR and Sanger sequencing. The expression level of NUDT15 in mononuclear cells was determined by real-time PCR. The correlation of pharmacomarkers with clinical parameters was performed using statistical tests. The response to the investigated drugs was evaluated in retrospective clinical studies. It was shown that the level of NUDT15 expression at the presentation of the disease does not correlate with the occurrence of side effects of thiopurine drug therapy. In this study 5 variants in the NUDT15 gene were detected, which do not have a pathogenic effect. The rs4149056 variant in the SLCO1B1 gene was assessed as a marker of methotrexate pharmacokinetics and toxicity. Its clinical significance was not confirmed in this study. The pharmacogenetic potential of variants in CYP3A5, CEP72, ACTG1, MIR3117 and MIR4481 genes as markers of response to vincristine therapy was analysed. The correlation of these variants with the onset of peripheral neuropathies in children with ALL has not been confirmed. A predictive model for methotrexate-induced hepatotoxicity based on the polygenic risk score was developed. This study contributed to the knowledge that leads to the personalization of the treatment of children with ALL." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "farmakogenetika", "dečja akutna limfoblastna leukemija", "tiopurinski lekovi", "metotreksat", "vinkristin", "poligenski skor rizika", "nudiks hidroksilaza 15 (NUDT15)", "vinkristinom indukovana periferna neuropatija (VIPN)" ]
[ "pharmacogenetics", "childhood acute lymphoblastic leukemia", "thiopurine drugs", "methotrexat", "vincristine", "polygenic risc score", "nudix hydroxylase 15 (NUDT15)", "vincristine- induced peripheral neuropathy (VIPN)" ]
[ "Farmakogenetički markeri odgovora na terapiju tiopurinskim lekovima, metotreksatom i vinkristinom kod dece sa akutnom limfoblastnom leukemijom" ]
[ "Pharmacogenetic markers of response to therapy with thiopurine drugs, methotrexate, and vincristine in children with acute lymphoblastic leukemia" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151534/Disertacija_13661.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152457/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30584/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21538" ]
[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/21591
123456789-21591.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30514/bdef:Content/download
no
Трансформација рата: од хладног рата до хибридног ратовања
The transformation of war: from the cold war to hybrid warfare
[ "Putnik, Nenad" ]
[ "Milošević, Mladen", "Jeftić, Zoran", "Vuletić, Dejan" ]
Stojanović Takić, Gospava
2023-09-06T11:03:34
[ "2023-09-06T11:03:34" ]
2023-09-25
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/5164/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9184", "https://fedorabg.bg.ac.rs/fedora/get/o:30514/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/109558025", "https://nardus.mpn.gov.rs/handle/123456789/21591" ]
[ "Претња ратом у савременим условима веома је актуелан друштвени проблем који захтева свестрану научну анализу. Уочавајући празнину у постојећој литератури, овом дисертацијом се настоји заузети холистички приступ у истраживању проблема трансформације рата. Значај свеобухватног теоријског приступа истраживању савремених форми рата произилази из чињенице да се оваквим приступом проучава нови и недовољно истражени феномен о коме су потребна шира знања која се могу добити само у оквирима различитих теоријских полазишта. Научна анализа феномена „хибридног ратовања“ представља погодан оквир за разматрање природе проблема рата, кроз уочавање битних карактеристика као концепта, чиме се последично отвара проблем научнотеоријског разматрања и феномена савременог рата односно његових појавних облика. Разматрање феномена хибридног вођења рата са позиција различитих и сукобљених теоријских полазишта доприноси добијању ширих сазнања не само о њему већ и савременим формама рата уопште. Предмет истраживања, у односу на временски аспект, односи се на период од почетка Хладног рата до данас. Са просторног аспекта предмет истраживања се односи на праксу различитих држава у савременој међународној заједници, тј. на читаву међународну заједницу. Истраживању овог специфичног феномена потребно је приступити мултиметодски, кроз анализирање расположивих и новонасталих извора података. Доминира квалитативни истраживачки дизајн, док је неадекватна теоријска заснованост довела до експлоративног истраживања. Студијом случаја је обухваћен конкретан проблем/случај – анексија Крима 2014. године, у циљу утврђивања сазнајно-експланаторног потенцијала анексије Крима у проучавању хибридног начина ратовања. Свеукупно, резултати истраживања омогућили су долажење до нових научних сазнања о феномену трансформације савременог рата у смислу научне дескрипције и објашњења истраживаног феномена. Такође, истраживање је пружило допринос у превенцији будућих конфликата, с обзиром да је указало на одређене недостатке у примени поједних одредби међународног ратног и хуманитарног права на савремене „хибридне ратове“, и понудило смернице за нормативно унапређење ове области." ]
[ "The threat of war in modern conditions is a very current social problem that requires comprehensive scientific analysis. Noticing a gap in the existing literature, this dissertation seeks to take a holistic approach in researching the problem of the transformation of war. The importance of a comprehensive theoretical approach to the research of modern forms of war stems from the fact that this approach is used to study a new and insufficiently researched phenomenon that requires broader knowledge that can only be obtained within the framework of various theoretical starting points. The scientific analysis of the phenomenon of \"hybrid warfare\" represents a suitable framework for considering the nature of the problem of war, through the observation of essential characteristics as a concept, which consequently opens up the problem of scientific theoretical consideration and the phenomenon of modern war, i.e. its manifestations. Examining the phenomenon of hybrid warfare from the positions of different and conflicting theoretical starting points contributes to gaining wider knowledge not only about it but also about modern forms of war in general. The subject of research, from a time perspective, covers the period from the beginning of the Cold War to the present day. From the spatial aspect, the subject of research refers to the practice of different states in the contemporary international community, ie. to the entire international community. The research of this complex phenomenon necessarily imposes a multi-method approach and requires a complementary analysis of available and newly created data sources. Qualitative research design dominates, while inadequate theoretical foundation led to exploratory research. The case study covers a specific problem/case - the annexation of Crimea in 2014, in order to determine the cognitive and explanatory potential of the annexation of Crimea in the study of hybrid warfare. Overall, the results of the research made it possible to obtain new scientific knowledge about the phenomenon of the transformation of modern war in terms of scientific description and explanation of the researched phenomenon. Also, the research contributed to the prevention of future conflicts, given that it pointed out certain shortcomings in the application of certain provisions of international war and humanitarian law to modern \"hybrid wars\", and offered guidelines for the normative improvement of this area." ]
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Универзитет у Београду, Факултет безбедности
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-sa/4.0/" ]
Универзитет у Београду
[ "рат", "хибридно ратовање", "трансформација рата", "Хладни рат", "савремени рат", "сукоб", "класичне теорије о рату", "савремене теорије о рату", "трка у наоружању" ]
[ "war", "hybrid warfare", "transformation of war", "Cold War", "modern war", "conflict", "classical theories of war", "modern theories of war", "arms race" ]
[ "Трансформација рата: од хладног рата до хибридног ратовања" ]
[ "The transformation of war: from the cold war to hybrid warfare" ]
doctoralThesis
[ "BY-NC-SA" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151691/Disertacija_13645.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152458/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30514/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21591" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21569
123456789-21569.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30587/bdef:Content/download
no
Dijagnostički značaj ekspresije citokeratina visoke molekularne težine i niske molekularne težine u skvamocelularnom karcinomu larinksa i benignim lezijama larinksa
Utility of high molecular weight and low molecular weight cytokeratins in diagnostics of laryngeal squamous cell carcinoma and benign laryngeal lesions
[ "Terzić, Tatjana" ]
[ "Milovanović, Jovica", "Vukomanović Đurđević, Biserka", "Dunđerović, Duško" ]
Boričić, Novica
2023-09-06T11:00:56
[ "2023-09-06T11:00:56" ]
2023-04-05
[ "https://eteze.bg.ac.rs/application/showtheses?thesesId=9202", "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/5162/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30587/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/121761545", "https://nardus.mpn.gov.rs/handle/123456789/21569" ]
[ "Ne postoji pouzdan imunohistohemijski (IHH) marker za dijagnostikovanje skvamocelularnog karcinoma larinksa (SCC) ili dijagnostikovanje i gradiranje displazija larinksa. Cilj našeg rada je da ispitamo dijagnostičku vrednost CK8, CK10, CK13 i CK17 u diferencijalnoj dijagnostici SCC larinksa, displazija larinksa i benignih lezija larinksa; da ispitamo korisnost navedenih IHH markera u određivanju statusa linija resekcije; da ispitamo korelaciju ovih markera sa stadijumom tumora i sa prisustvom metastaza SCC u limfnim čvorovima. U ovu retrospektivnu studiju su bila uključena 163 pacijenta, hirurški lečena u periodu između 2010. i 2020. godine, sa postavljenim dijagnozama: polipa larinksa, papiloma larinksa, papilarne keratoze larinksa, displazija larinksa niskog i visokog gradusa i SCC larinksa. Obavljeno je imunohistohemijsko bojenje monoklonskim antitelima na CK8, CK10, CK13 i CK17. Dva iskusna patologa su semikvantitativno skorovala IHH pozitivnost. Analiziran je dijagnostički i prognostički značaj imunohistohemijskih markera. CK13 se pokazao kao dijagnostički značajan marker za razlikovanje SCC larinksa od benignih lezija larinksa (senzitivnost 100,0%, specifičnost 67,3%) kao i za razlikovanje displazija larinksa od benignih lezija larinksa (senzitivnost 100,0%, specifičnost 67,3%). CK17, sa senzitivnošću od 78,3% i specifičnošću od 67,3%, pokazao se kao dijagnostički značajan za razlikovanje SCC larinksa od displazija larinksa. CK10, sa senzitivnošću od 80,0% i specifičnošću od 61,1%, može se koristiti za razlikovanje displazija niskog gradusa od displazija visokog gradusa. Gubitak ekspresije CK13 je pouzdan dijagnostički alat za određivanje statusa linija resekcije. Nije uočena korelacija između ekspresije CK8, CK10, CK13 i CK18 i stadijuma tumora i prisustva metastaza u limfnim čvorovima. Uočena je negativna korelacija između ekspresije CK17 i gradusa tumora. Uočena je korelacija između ekspresije CK17 i CK8 i dubine invazije tumora." ]
[ "There are no reliable immunohistochemical markers for diagnosing laryngeal squamous cell carcinoma (SCC) or diagnosing and grading laryngeal dysplasia. We aimed to evaluate the diagnostic utility of CK8, CK10, CK13, and CK17 in benign laryngeal lesions, laryngeal dysplasia, and laryngeal SCC; to evaluate diagnostic utility of these markers in determinating resection margins, and to examine if corelation exist between expression of these IHC markers and tumor stage and metastasis of SCC in lymph nodes. This retrospective study included 163 patients diagnosed with laryngeal papilloma, laryngeal polyps, keratosis papillaris laryngis, laryngeal dysplasia, and laryngeal SCC who underwent surgical treatment between 2010 and 2020. Immunohistochemistry (IHC) was carried out using specific monoclonal antibodies against CK8, CK10, CK13, and CK17. Two experienced pathologists performed semi-quantitative scoring of IHC positivity. The diagnostic and prognostic significance of the markers was analyzed. CK13 showed a sensitivity of 100% and a specificity of 67.3% for distinguishing between laryngeal SCC and benign lesions. CK17 showed a sensitivity of 78.3% and specificity of 57.1% for the detection of laryngeal SCC vs. laryngeal dysplasia. CK10 showed a sensitivity of 80.0% for discriminating between low-grade and high-grade dysplasia, and a specificity of 61.1%. Loss of CK13 expression is a reliable diagnostic tool for determining resection lines. There is no correlation between CK8, CK10, CK13 and CK8 expression and tumor stage. There is no correlation between CK8, CK10, CK13 and CK17 expression and metastasis in lymph nodes." ]
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Универзитет у Београду, Медицински факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Skvamocelularni karcinoma larinksa", "displazija larinksa", "polip larinksa", "papilom larinksa", "papilarna keratoza larinksa", "citokeratini", "imunohistohemija", "linije resekcije" ]
[ "Laryngeal carcinoma", "Laryngeal dysplasia", "Laryngeal polyp", "Laryngeal papilloma", "Keratosis papillaris laryngis", "Cytokeratins", "Immunohistochemistry", "Resection margins" ]
[ "Dijagnostički značaj ekspresije citokeratina visoke molekularne težine i niske molekularne težine u skvamocelularnom karcinomu larinksa i benignim lezijama larinksa" ]
[ "Utility of high molecular weight and low molecular weight cytokeratins in diagnostics of laryngeal squamous cell carcinoma and benign laryngeal lesions" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151625/Disertacija_13663.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152459/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30587/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21569" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21594
123456789-21594.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30484/bdef:Content/download
no
Политичко деловање и дипломатско мисионарство Николаја Велимировића у Уједињеном краљевству и Сједињеним Америчким државама током Првог светског рата
Political action and diplomatic missionary work of Nikolaj Velimirovic in The United Kingdom and The United States of America during The First World War
[ "Simeunović, Dragan" ]
[ "Lubardić, Bogdan", "Damnjanović, Ivana" ]
Katana, Ljupka
2023-09-06T11:03:52
[ "2023-09-06T11:03:52" ]
2023-05-09
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/5156/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9170", "https://fedorabg.bg.ac.rs/fedora/get/o:30484/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/121672713", "https://nardus.mpn.gov.rs/handle/123456789/21594" ]
[ "Тема дисертације се односи на емпиријски актуелну поставку српске политике и историје политичких идеја путем улоге Владике Николаја (Велимировића) у одређеним историјским догађајима. Проблематика истраживања је значајна и за савремени друштвени и политички живот. Велимировић је спознао да је историја широк простор где се дешава сцена преплитања политике и судбоносних догађаја. Садржај такве сцене је оно што видимо исказано у животним вредностима. Фокус истраживања је на политиколошком деловању и теолошким принципима политичке праксе Владике. Са аспекта научног доприноса широј друштвеној заједници циљ је разјашњење овог недовољно познатог дела српске историје. У теоријском смислу акценат је на проблемско-критичкој активности како би се показало да су Велимировићева политичка мисија и целокупно ратно ангажовање потекли од теолошких и патриотских мотива у исто време. Његов патриотизам извире из једног српско-словенског, односно источно-хришћанског патриотизма. Николај Велимировић је апологета, бранилац хришћанског учења, али уједно и бранилац српског националног идентитета. Поред тога, он је имао значајан ауторитет и личну харизму, те је оставио дубок траг у свом и пријатељским народима. У истраживању су коришћене основне, општенаучне методе прикупљања података и херменеутичка метода. Резултати су довели до закључка да је Владика Николај као предстваник Цркве и државе, интелектуалац и космополита, могао да уприличи врсну дипломатску праксу у свету и допринесе својој Отаџбини. Његова улога духовног лидера у Великом рату је била незамењива у политичкој структури Краљевине Србије, исто колико и у односу међудржавног и међуцрквеног уважавања." ]
[ "The topic refers to the empirically current setting of Serbian politics and the history of political ideas through the political role of Nikolaj Velimirovic in certain historical events. That is why this issue is important for modern social and political life as well. Bishop Nikolaj realized that history is a wide space where the scene of the interweaving of politics and fateful events takes place. The content of such a scene is what we see expressed in the values of life. The focus of the research is the political activity and theological principles of the political practice of an individual in a certain time. From the aspect of scientific contribution to the wider social community, the goal is to clarify the insufficient knowledge of this part of the history of the Serbs. In the theoretical sense, the emphasis is on problem-critical activity to show that political mission and the entire war engagement of Velimirovic originated from theological and patriotic motives at the same time. His patriotism stems from a Serbian-Slavic, that is, Eastern-Christian patriotism. Nikolaj Velimirović is an apologist, a defender of Christian teachings, but also a defender of the national identity of the Serbs. In addition, he had significant authority and personal charisma, so he was one of those apologists who left a deep mark on the people and nations. To reach certain results in the research: basic, general-scientific, data collection methods and the hermeneutic method were used. The results led to the conclusion that Nikolaj Velimirovic, as a representative of the Church and the state, an intellectual and a cosmopolitan, could provide excellent diplomatic practice in the world and contribute to his country. His role as a spiritual leader in the Great War was irreplaceable in the political structure of the Kingdom of Serbia as well as in the relationship of inter-state and inter-Church respect." ]
application/pdf
sr
Универзитет у Београду, Факултет политичких наука
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Велимировић Николај", "политичке активности", "дипломатска мисија", "Сједињене Америчке Државе", "Уједињено Краљевство", "Први светски рат" ]
[ "Nikolaj Velimirovic", "political activities", "diplomatic mission", "The United States of America", "The United Kingdom", "The First World War" ]
[ "Политичко деловање и дипломатско мисионарство Николаја Велимировића у Уједињеном краљевству и Сједињеним Америчким државама током Првог светског рата" ]
[ "Political action and diplomatic missionary work of Nikolaj Velimirovic in The United Kingdom and The United States of America during The First World War" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151700/Disertacija_13633.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152461/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30484/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21594" ]
[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/21539
123456789-21539.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30586/bdef:Content/download
no
Monitoring, identifikacija i molekularno-genetička karakterizacija fitopatogenih bakterija krompira (Solanum tuberosum L.)
Monitoring, identification, and molecular-genetic characterization of phytopathogenic potato bacteria (Solanum tuberosum L.)
[ "Popović Milovanović, Tatjana" ]
[ "Stanković, Slaviša", "Berić, Tanja", "Medić, Olja", "Iličić, Renata" ]
Marković, Sanja S.
2023-09-06T10:57:53
[ "2023-09-06T10:57:53" ]
2023-04-03
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/5137/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9201", "https://fedorabg.bg.ac.rs/fedora/get/o:30586/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/121712393", "https://nardus.mpn.gov.rs/handle/123456789/21539" ]
[ "U Srbiji krompir ima veliki privredni značaj i pripada vodećim ratarsko-povrtarskim kulturama. Tokom monitoringa sprovedenog od 2015 do 2019. godine, obuhvaćeno je preko 2000 ha useva krompira sa 16 lokaliteta. Rezultati monitoringa su ukazali na prisustvo dve bakteriozne bolesti. Mrka trulež krtola krompira utvrđena je u 2015, 2016. i 2018. godini i kao uzročnik je identifikovana karantinska bakterija Ralstonia solanacearum. „Crna noga“ i vlažna trulež krtola krompira, koju su prouzrokovale bakterije Pectobacterium carotovorum, Pectobacterium brasiliense i Dickeya dianthicola, detektovana je u 2016, 2018. i 2019. godini. U ovom istraživanju, prisustvo P. brasiliense i D. dianthicola prvi put je zabeleženo na krompiru u Srbiji. Izolati R. solanacearum dobijeni iz 229 uzoraka sa mrkom truleži krtola bili su fenotipski homogeni, a na osnovu molekularno-genetičke karakterizacije svrstani su u filotip II. Rezultati ispitivanja fenotipskih karakteristika izolata iz 50 uzoraka sa crnom nogom i vlažnom truleži krtola ukazali su na postojanje uzročnika iz dva roda, Pectobacterium i Dickeya. Međutim, molekularno-genetička karakterizacija ovih izolata ukazala je na prisustvo tri vrste, pri čemu su P. brasiliense izolati bili heterogeni, dok su P. carotovorum i D. dianthicola izolati uglavnom bili homogeni. Metabarkoding analiza omogućila je uvid u sastav bakterijske mikrobijalne zajednice krtola krompira sa i bez simptoma vlažne truleži, kao i odgovarajućih zemljišta ukazujući da razvoj vlažne truleži nastaje zbog složenih interakcija između biljnih patogena i drugih endofitnih bakterija. Biokontrolna aktivnost Bacillus amyloliquefaciens sojeva SS-12.6 i SS-38.4 prema izolovanim fitopatogenim bakterijama je dokazana u in vitro, in situ i in planta uslovima." ]
[ "n Serbia, the potato has great economic importance and belongs to the leading crops. During the five-year monitoring (2015-2019), over 2000 ha of potato crops from 16 locations were observed. Monitoring results indicated the presence of two bacterial diseases. Brown rot of tubers was observed in 2015, 2016, and 2018, caused by the quarantine bacterium Ralstonia solanacearum. Blackleg and soft rot caused by the Pectobacterium carotovorum, P. brasiliense, and Dickeya dianthicola was observed in 2016, 2018, and 2019. In this study, P. brasiliense and D. dianthicola was recorded for the first time on the potato in Serbia. Isolates of R. solanacearum obtained from 229 samples with brown rot were phenotypically homogeneous, and based on molecular-genetic characterization they were classified into phylotype II. The results of testing the phenotypic characteristics of isolates from 50 samples with blackleg and soft rot indicated the presence of pathogens from two genera, Pectobacterium and Dickeya. However, molecular-genetic characterization of these isolates revealed the presence of three species, whereby P. brasiliense isolates were heterogeneous, while P. carotovorum and D. dianthicola isolates were mainly homogeneous. The metabarcoding analysis provided insight into the bacterial microbial community composition of potato tubers with and without soft rot symptoms, as well as the corresponding soils, indicating that the development of soft rot process arises due to complex interactions between plant pathogens and other endophytic bacteria. The biocontrol activity of Bacillus amyloliquefaciens strains SS-12.6 and SS-38.4 against isolated bacteria was proven in vitro, in situ, and in planta." ]
application/pdf
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Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Ralstonia solanacearum", "Pectobacterium spp", "Dickeya dianthicola", "genetički diverzitet", "metabarkoding", "biološka kontrola" ]
[ "Ralstonia solanacearum", "Pectobacterium spp", "Dickeya dianthicola", "genetic diversity", "metabarcoding", "biological control" ]
[ "Monitoring, identifikacija i molekularno-genetička karakterizacija fitopatogenih bakterija krompira (Solanum tuberosum L.)" ]
[ "Monitoring, identification, and molecular-genetic characterization of phytopathogenic potato bacteria (Solanum tuberosum L.)" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151537/Disertacija_13662.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152462/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30586/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21539" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21537
123456789-21537.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30571/bdef:Content/download
no
Uticaj vodenog ekstrakta ploda aronije na imunski sistem u mišjim modelima infekcije i melanoma
Effect of chokeberry fruit water extract on the immune system in mouse models of infection and melanoma
[ "Saksida, Tamara" ]
[ "Božić Nedeljković, Biljana", "Stojanović, Ivana", "Šavikin, Katarina", "Mitić, Katarina" ]
Mićanović, Dragica
2023-09-06T10:57:47
[ "2023-09-06T10:57:47" ]
2023-02-24
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/5127/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9198", "https://fedorabg.bg.ac.rs/fedora/get/o:30571/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/115618825", "https://nardus.mpn.gov.rs/handle/123456789/21537" ]
[ "Aronija (lat. Aronia melanocarpa), voće karakteristično po tamnim bobicama oporog ukusa, sadrži mnoštvo fenolnih jedinjenja zaslužnih za njena biološka svojstva. Vodeni ekstrakt ploda aronije (VEPA) pokazao je proinflamacijsko dejstvo. In vitro primena povećala je fagoctinu sposobnost makrofaga i stimulisala produkciju azot-monoksida iz dendritskih ćelija, kao i diferencijaciju proinflamacijskih CD4+ T limfocita. In vivo, oralni tretman zdravih miševa doveo je do promene distribucije ćelija imunskog sistema u crevu i povećane produkcije IFN-γ u slezini. Efekat VEPA na imunski sistem ispitan je u mišjim modelima infekcije unutarćelijskom bakterijom Listeria monocytogenes i melanoma, indukovanog subkutanim injeciranjem B16 ćelija. Pretretman VEPA ublažava kliničku sliku i doprinosi eliminaciji infekcije tako što na mestu inicijacije infekcije – u Pejerovim pločama i u ciljnom tkivu – slezini, povećava zastupljenost CD8+ T limfocita i makrofaga, pri čemu su efektorska svojstva makrofaga naročito stimulisana. U modelu melanoma pretretman VEPA smanjio je incidencu bolesti i zapreminu tumora, istovremeno povećavajući infiltraciju ćelija imunskog sistema u tumor. Zastupljenost NK ćelija, CD4+ i CD8+ T limfocita unutar tumora povećana je usled pretretmana VEPA, kao i ekspresija IFN-γ u ovim ćelijama, dok je zastupljenost supresivnih ćelija smanjena. Produkcija IFN-γ povećana je i u mezenteričnim limfnim čvorovima, slezini i serumu pretretiranih životinja. Splenociti ove grupe životinja pokazali su veću citotoksičnost prema ćelijama melanoma, zavisnu od IFN-γ. Izostanak direktnog uticaja na B16 ćelije dodatno ukazuje na imunomodulacijska svojstva VEPA. Ovi rezultati ukazuju na potencijal primene aronije u prevenciji stanja i bolesti u kojima je neophodna stimulacija proinflamacijskog imunskog odgovora." ]
[ "Chokeberry (Aronia melanocarpa), fruit with black berries that leave an astringent mouthfeel after consumption, is rich in polyphenols responsible for its bioactive properties. Chokeberry extract (VEPA) showed profound in vitro and in vivo pro-inflammatory effects. When applied in vitro, VEPA stimulated phagocytic ability of macrophages and NO production from dendritic cells, as well as differentiation of pro-inflammatory CD4+ T cells. In vivo oral treatment of healthy mice changed the distribution of immune cells within the gut and increased production of IFN-γ in the spleen. In the mouse model of infection with intracellular bacteria Listeria monocytogenes VEPA accelerated eradication of infection and improved their general appearance. Also, VEPA pretreatment increased proportions of macrophages and CD8+ T cells both in the gut and the spleen of infected mice and mainly affected effector functions of macrophages. In the mouse model of melanoma, induced by subcutaneous injection of B16 cells, VEPA delayed melanoma appearance, decreased tumor volume and increased infiltration of immune cells in the tumor. Proportion of NK cells, CD4+ and CD8+ T cells within the tumor was increased, as well as the expression of IFN-γ within these cells, with downregulated frequency of cells that suppress the immune cells. Additionally, the production of IFN-γ was enhanced in the mesenteric lymph nodes, spleen and the serum of pretreated animals. Splenocytes from these animals showed enhanced cytotoxicity towards melanoma cells, dependent on IFN-γ. These results point to the applicative potential of VEPA in the prevention of different states and diseases where an enhanced pro-inflammatory response is needed." ]
application/pdf
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Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-sa/4.0/" ]
Универзитет у Београду
[ "Aronia melanocarpa", "ekstrakt aronije", "Listeria monocytogenes", "unutarćelijska bakterija", "melanom", "B16", "imunomodulacija", "proinflamacijski odgovor", "antibakterijski odgovor", "antitumorski odgovor" ]
[ "ronia melanocarpa", "chokeberry extract", "Listeria monocytogenes", "intracellular bacteria", "melanoma", "B16", "immunomodulation", "pro-inflammatory response", "antibacterial response", "antitumor response" ]
[ "Uticaj vodenog ekstrakta ploda aronije na imunski sistem u mišjim modelima infekcije i melanoma" ]
[ "Effect of chokeberry fruit water extract on the immune system in mouse models of infection and melanoma" ]
doctoralThesis
[ "BY-NC-SA" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151531/Disertacija_13659.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152464/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30571/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21537" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21589
123456789-21589.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30453/bdef:Content/download
no
Драмска књижевност у разредној настави
Drama literature in classroom teaching
[ "Opačić-Nikolić, Zorana" ]
[ "Janićijević, Valerija", "Cvetanović, Zorica", "Mlađenović, Milivoje", "Milovanović, Ana" ]
Mitrović, Milena B.
2023-09-06T11:03:20
[ "2023-09-06T11:03:20" ]
2023-03-16
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/5115/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9156", "https://fedorabg.bg.ac.rs/fedora/get/o:30453/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/113341961", "https://nardus.mpn.gov.rs/handle/123456789/21589" ]
[ "Предмет овог рада јесте драмска књижевност за децу у контексту наставе на млађем школском узрасту. Сврсисходност избора теме и истраживачког поступка произилази из специфичне природе драме за децу, њеног кретања у два различита књижевна система (драмском роду и књижевности за децу) и припадности различитим уметничким областима (књижевности и позоришту). Други разлози су недовољно књижевнотеоријског испитивања драме за децу и методичког осврта на целокупни драмски облик у разредној настави књижевности. Узимајући у обзир наведено, у раду смо описали књижевни и методички статус драме за децу. Основни циљ је да се прикаже поетика, место и значај који драма за децу има у науци и приступ овом књижевном облику у настави. Најпре је разматран књижевнотеоријски аспект драме за децу са циљем да се понуди решење бројних недоумица. Као битне тачке издвојила су се питања: место драме за децу у генолошком систему, појам и границе драме за децу, њене специфичне одлике и типолошко одређење разноврсних драмских текстова. Након тога, даје се увид у историјски ток драме за децу и однос драме за децу и позоришта који умногоме одређује природу овог књижевног облика. Други део рада посвећен је драмској књижевности за децу у методичком контексту. Размата се њен статус у наставним програмима (од половине XX века до данас), као и методичка обрада у важећим читанкама. Из истраживања корпуса програма и уџбеника издвојили су се посебни задаци: кретање драмских појмова у наставним програмима, заступљеност драмских књижевних дела у прописаној лектири и књижевни и методички приступ драмским текстовима у читанкама. На основу увида у целокупни однос према драми за децу у настави, покушали смо да одговоримо на важна питања: које су то методичке радње које би обезбедиле целовиту интерпретацију драмског текста на часу и која би још драмска дела могла да буду део обавезне или допунске лектире. Истраживање је показало место драме за децу у разредној настави, књижевне и методичке разлоге за такав статус. Проистекле су и могућности за побољшање наставе драмске књижевности за децу на млађем школском узрасту које се огледају, пре свега, у избору адекватних методичких радњи и типолошки разноврсних текстова за читање и тумачење." ]
[ "The subject matter of this paper is drama literature for children in the context of teaching a younger school age. The expediency of the topic choice and research procedure arises from the specific nature of children's drama, its movement in two different literary systems (drama genre and children's literature), and its belonging to different artistic fields (literature and theater). Insufficient literary theoretical examination of drama for children and methodical review of the entire drama form in the class teaching of literature are additional reasons. Considering the above-mentioned, in this paper we described the literary and methodical status of drama for children. The main aim is to display the poetics, place, and importance of children's drama in science and the approach to this literary form in teaching. Firstly, the literary theoretical aspect of drama for children was discussed with the aim of offering a solution to numerous doubts. The following questions were singled out as important points: the place of children's drama in the genealogical system, the concept and boundaries of children's drama, its specific characteristics, and the typological determination of various dramatic texts. Consequently, insight is given into the historical course of children's drama and the relationship between children's drama and theater, which considerably determines the nature of this literary form. The second part of the paper is devoted to drama literature for children in a methodological context. Its status in teaching programs is discussed (from the middle of the 20th century to the present day), as well as its methodical treatment in legitimate reading books. From the research of the corpus of programs and textbooks, particular tasks were distinguished: the movement of dramatic concepts in teaching programs, the representation of dramatic literary works in the prescribed reading, and the literary and methodical approach to dramatic texts in reading books. Based on the insight of the entire attitude in classes towards drama for children, we tried to answer important questions: what are the methodical actions that would ensure a complete interpretation of the dramatic text in class, and which drama pieces could be a part of mandatory or additional reading. The research has shown the place of drama for children in classroom teaching, literary and methodical reasons for such status. There have also been opportunities to improve the teaching of drama literature for children of younger school age, which are reflected, first of all, in the selection of adequate methodical activities and typologically diverse texts for reading and interpretation." ]
application/pdf
sr
Универзитет у Београду, Учитељски факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "књижевност за децу", "драмска књижевност", "методика наставе књижевности", "разредна настава", "наставни програм", "читанка" ]
[ "literature for children", "drama literature", "literature teaching methodology", "classroom teaching", "curriculum", "reading book" ]
[ "Драмска књижевност у разредној настави" ]
[ "Drama literature in classroom teaching" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151685/Disertacija_13620.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152466/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30453/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21589" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
[ "" ]
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[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21597
123456789-21597.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30698/bdef:Content/download
no
Procena mehaničkih karakteristika mišića nogu i ruku pri različitim nivoima napora
Evaluation of muscle mechanical characteristics of legs and arms under different levels of effort
[ "Prebeg, Goran" ]
[ "Knežević, Olivera", "Mirkov, Dragan", "Janićijević, Danica", "Milanović, Slađan" ]
Marović, Ivan
2023-09-06T11:04:10
[ "2023-09-06T11:04:10" ]
2023-02-21
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/5106/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9237", "https://fedorabg.bg.ac.rs/fedora/get/o:30698/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/117481225", "https://nardus.mpn.gov.rs/handle/123456789/21597" ]
[ "Procena mehaničkih karakteristika mišića kao što su sila (F), brzina (V) i snaga (P) su od velikog značaja za razumevanje funkcije i građe lokomotornog aparata. Opšte je poznato da laboratorijski i terenski testovi koji se koriste za procenu mehaničkih karakteristika mišića (MKM) najčešće zahtevaju maksimalno voljno naprezanje (MVN) kako bi rezultati bili validni i pouzdani. Međutim, postavlja se pitanje kako se menjaju rezultati različitih motoričkih testova ukoliko ispitanik iz voljnih ili nevoljnih razloga ne može ili ne sme da ispolji MVN? Uticaj umanjenog napora na ispoljavanje MVN je neminovan, međutim njegovi efekti na procenjivane MKM, kao i mogućnost upotrebe dobijenih rezultata iz različitih motoričkih zadataka, još uvek nisu dovoljno poznati. Predmet ove disertacije je uticaj umanjenog napora na mehaničke karakteristike mišića. Cilj disertacije je bio da se istraže efekti umanjenog napora na mehaničke karakteristike mišića nogu i ruku pri različitim nivoima opterećenja. U skladu sa predmetom istraživanja, planirana su i sprovedena dva eksperimenta. Eksperiment 1 – Procena mehaničkih karakteristika mišića nogu pri različitim nivoima napora Test vertikalni skok u sportu i sportskoj medicini je opšte prihvaćen i veoma rasprostranjen. Međutim, i dalje nije poznato kako voljno umanjen napor utiče na rezultate testa skoka iz polu-čučnja (SJ). Cilj ove studije je bio da istraži uticaj umanjenog napora na MKM nogu dobijene iz SJ testa pri različitim opterećenjima. Dvanaest ispitanika muškog pola, studenata Fakulteta sporta i fizičkog vaspitanja (21.1 ± 1.1 godina) je izvodilo SJ test po 2 pokušaja pri 3 nivoa napora (100%, 75% i 50% od maksimalnog napora) i 4 nivoa opterećenja (0, 20, 40 i 60 % 1-RM čučnja). Podaci brzine (VN), sile (FN) i snage (PN) mišića nogu dobijeni su obradom podataka sa platformi sile. Rezultati pokazuju da se sve tri apsolutno izvedene MKM značajno smanjuju pod uticajem umanjenog napora (p < .01) na svakom nivou opterećenja, sa najvišom razlikom između 100% i 50% napora (p < .001). Međutim, značajne i velike razlike između opterećenja su pronađeni u VN i FN (p < .01), ali ne i u PN (p > .1). Takođe, značajne i velike razlike su pronađene i u relativnom padu napora između PN sa VN (p < .01) i FN (p < .01). Relativni pad u PN pri naporu od 75% usrednjen kroz sva opterećenja je bio u proseku 34,1 ± 6.2 (p < .01), i pri naporu od 50% je bio 38.1 ± 4% (p < .01). Dobijeni rezultati ukazuju da ispoljena snaga najbolje opisuje efekte voljno umanjenog napora u SJ testu. Takođe, s obzirom da nema interakcija između napora i opterećenja u relativnom padu snage rezultati se uklapaju u teoriju da motorne komande upravljaju osećajem napora nezavisno od osećaja težine i mišićne tenzije. Ovi rezultati su od značaja za upotrebu SJ testa u kliničke svrhe, sugerišući da se snaga nogu može koristiti za opis neuromišićnih kapaciteta u uslovima kada ispitanik ne sme ili ne može da ispolji maksimalno voljno naprezanje..." ]
[ "Assessing of muscle mechanical characteristics such as force (F), velocity (V) and power (P) are of essential importance for understanding the function and structure of human locomotor system. It is generally known that laboratory and field tests used to assess the muscle mechanical characteristics (MMC) most often require maximum voluntary exertion to produce valid and reliable results. However, the question that arises is how a results of various motor tests change if the subject due to some voluntary or unvoluntary reasons cannot or must not generate maximum exertion? However, the effects of submaximal effort on the manifestation of maximum voluntary exertion are inevitable, but it is still unknown what MMC are the most sensible under voluntary reduced effort in various motor tasks. The subject of this dissertation is the influence of reduced effort on the mechanical characteristics of muscles. The aim of this dissertation was to investigate the effects of voluntary reduced effort on the mechanical characteristics of the leg and arm muscles at different levels of external load. In accordance with the subject of the dissertation, two experiments were planned and conducted. Experiment 1 - Evaluation of mechanical characteristics of leg muscles at different levels of effort The vertical jump test is generally accepted and very widespread in sports and clinical testing. However, it is still not known how the voluntarily reduced effort affects the results of the squat jump test (SJ). The aim of this study was to investigate the effect of reduced effort on the MMC of legs obtained from the SJ test under different load conditions. Twelve male students of the Faculty of Sports and Physical Education (21.1 ± 1.1 years) have performed SJ test 2 times at 3 levels of effort (100%, 75% and 50% of maximum effort) and 4 levels of load (0, 20, 40 and 60% 1-RM). Velocity (V), force (F) and power (P) of leg muscles were recorded with force platform. The results show that all three absolute leg MMC variables decreased significantly under the influence of reduced effort (p < .01) at each load level, with the highest important difference found between 100% and 50% of voluntary effort (p < .001). Differences between loads were found for V and F (p < .01), but not for P (p > .1). Also, differences were found within relative fall of effort between P with V (p < .01) and F (p < .01). The relative fall of P at 75% of effort was in average 34.1 ± 6.2% (p < .01), and at 50% of effort was 38.1 ± 4% (p < .01). These results show that power could describe the best effects of voluntary reduce effort in SJ test. Also, since there was no interaction between effort and load within relative fall of P, the results are supporting the theory that motor commands control the perception of effort independently of the perception of weight and muscle tension..." ]
application/pdf
sr
Универзитет у Београду, Факултет спорта и физичког васпитања
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-sa/4.0/" ]
Универзитет у Београду
[ "testiranje", "napor", "skok iz polu-čučnja", "bacanje medicinke", "sila", "snaga", "brzina" ]
[ "testing", "effort", "squat jump", "medical throw", "force", "power", "velocity" ]
[ "Procena mehaničkih karakteristika mišića nogu i ruku pri različitim nivoima napora" ]
[ "Evaluation of muscle mechanical characteristics of legs and arms under different levels of effort" ]
doctoralThesis
[ "BY-NC-SA" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151709/Disertacija_13698.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152467/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30698/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21597" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21609
123456789-21609.pdf
yes
yes
https://fedorabg.bg.ac.rs/fedora/get/o:30470/bdef:Content/download
no
Uloga intuicija u epistemologiji
ǂThe ǂrole of intuitions in epistemology
[ "Lazović, Živan" ]
[ "Lazović, Živan", "Bogdanovski, Mašan", "Zorić, Aleksandra" ]
Mijić, Jelena
2023-09-06T11:05:06
[ "2023-09-06T11:05:06" ]
2023-02-03
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/5095/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9162", "https://fedorabg.bg.ac.rs/fedora/get/o:30470/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/121496841", "https://nardus.mpn.gov.rs/handle/123456789/21609" ]
[ "Predmet ove disertacije se u najširem smislu može posmatrati kao odgovor na meta-epistemološko pitanje o zadatku epistemologije i načinu na koji bi epistemološki projekat trebalo voditi. U radu prikazujemo i kritički analiziramo debatu savremenih metafilozofa o ulozi, a posledično i prirodi intuicija u savremenoj analitičkoj filozofiji. Osnovni cilj našeg rada je da odbranimo stav da epistemičke intuicije igraju ulogu evidencije u okviru metoda analize pojma znanja. Ovaj stav deo je standardne slike o epistemološkoj metodologiji koja se poslednjih godina dovodi u pitanje, kako od strane naučno orijentisanih filozofskih naturalista, tako i filozofskih tradicionalista. Kao ključni problem izdvajamo neuspeh zastupnika standardne slike o filozofskoj metodologiji da ponude odgovor na pitanje prirode intuicija. Prema našem mišljenju ovaj neuspeh posledica je propusta koji prave kako zastupnici, tako i kritičari pozivanja na intuicije u filozofiji kada pristupaju ovoj metafilozofskoj debati. Jednom kada uvidimo da moramo podrobnije razumeti metode u okviru kojih se pozivamo na intuicije, uočićemo da filozofske intuicije ne smemo posmatrati kao homogenu klasu, već da ispitivanju njihove prirode moramo pristupiti u okviru pojedinačnih filozofskih disciplina. Kada smo ovu strategiju primenili u našem istraživanju došli smo do zaključka da intuicije kao izraz pojmovne kompetencije igraju ulogu evidencije u metodima pojmovne analize i misaonog eksperimenta koji su karakteristični za savremenu analitičku epistemologiju." ]
[ "The subject of this dissertation is broadly conceived as a meta-epistemological question of the task of epistemology and how the epistemological project should be conducted. We present and critically analyze the debate of contemporary metaphilosophers about the role and, consequently, the nature of intuitions in contemporary analytic philosophy. The main goal of our work is to defend the position that epistemic intuitions play the role of evidence within the conceptual analysis of knowledge. This position is part of the standard view on the epistemological methodology that has been called into question in recent years, both by scientifically oriented philosophical naturalists and philosophical traditionalists. As a key problem, we single out the failure of representatives of the standard picture of philosophical methodology to answer the question of the nature of intuitions. In our opinion, this failure is a consequence of the omissions made by both advocates and critics of appeals to intuitions in philosophy when approaching this metaphilosophical debate. Once we thoroughly understand the methods referring to intuitions, we will see that philosophical intuitions should not be considered a homogeneous class. This implies that the question of their nature should be answered within the framework of individual philosophical disciplines. When applied to epistemology, the strategy showed that intuitions as an expression of conceptual competence play the role of evidence in the methods of conceptual analysis and thought experiments common in contemporary analytic epistemology." ]
application/pdf
sr
Универзитет у Београду, Филозофски факултет
[ "" ]
[ "openAccess" ]
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Универзитет у Београду
[ "intuicije", "pojmovna analiza", "epistemologija", "evidencija", "filozofska metodologija", "znanje", "pojam", "misaoni eksperiment" ]
[ "intuitions", "conceptual analysis", "epistemology", "evidence", "philosophical methodology", "knowledge", "concept", "thought experiment" ]
[ "Uloga intuicija u epistemologiji" ]
[ "ǂThe ǂrole of intuitions in epistemology" ]
doctoralThesis
[ "ARR" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151744/Disertacija_13626.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152470/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30470/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21609" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/21576
123456789-21576.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30562/bdef:Content/download
no
Dinamika sadržaja aromatičnih materija grožđa sorti Krstač i Žižak tokom sazrevanja i vinifikacije i njen uticaj na senzorne karakteristike vina
Dynamics of the content of aromatic substances in grapes of the Krstač and Žižak varieties during maturation and vinification and its influence on the sensory characteristics of wine
[ "Petrović, Aleksandar" ]
[ "Matijašević, Saša", "Anđelković, Boban" ]
Madžgalj, Valerija
2023-09-06T11:01:55
[ "2023-09-06T11:01:55" ]
2023-02-06
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/5080/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9196", "https://fedorabg.bg.ac.rs/fedora/get/o:30562/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/121767433", "https://nardus.mpn.gov.rs/handle/123456789/21576" ]
[ "Istraživanja u ovoj doktorskoj disertaciji imala su za cilj da prikažu sadržaj aromatičnih jedinjenja u grožđu i aromatični profil vina autohtonih crnogorskih sorti grožđa Krstač i Žižak. Priprema uzoraka je urađena tečno-tečnom ekstrakcijom i aromatična jedinjenja su detektovana GC/FID-MS analizom. U belim vinima, proizvedenim po raznim metodama mikrovinifikacije, identifikovani su viši alkoholi, etil estri, acetati, laktoni i masne kiseline. Primenom maceracije u trajanju 4 i 8 sati i enzimskih preparata (Lallzyme cuveé blanc i beta), utvrđeno je da je sadržaj ukupnih aromatičnih jedinjenja značajno viši u uzorcima vina K EB4h i Z CB4h, u odnosu na kontrolu. Maceracija i upotreba enzimskih preparata su povećali sadržaj 2-feniletil i izoamil alohola, zatim heksanske i oktanske kiseline. Pored toga, u svim uzorcima vina je bio povećan sadržaj estara, koji su odgovorni za voćnu aromu vina (izoamil acetat, etil heksanoat i 2-feniletil acetat), u poređenju sa kontrolom. U ovom radu ispitivan je uticaj dva kvasca i hraniva za kvasce na sadržaj aromatičnih jedinjenja. Utvrđeno je da tokom alkoholne fermentacije Saccharomyces cerevisiae sintetiše viši sadržaj ukupnih aromatičnih jedinjenja u odnosu na Saccharomyces bayanus uz dodavanje istih hraniva za kvasce. Kada u sadržaj ukupnih aromatičnih materija nisu uključeni viši alkoholi, najvišu koncentraciju aromatičnih jedinjenja imala su vina K Bay E i Z Bay E. Kvasac Saccharomyces cerevisiae sintetiše višu koncentraciju izoamil alkohola, 2-feniletil i izobutil alkohola, u odnosu na Saccharomyces bayanus. Zaključeno je, da je na stvaranje različitih koncentracija etil estara i acetata, značajan uticaj imao kvasac koji je upotrebljen u eksperimentu, dok pojedino hranivo za kvasce naglašava njegove različite karakteristike. Vina Krstača i Žižka koja su dobijena taloženjem šire u trajanju od 30 sati su imala najbolje rezultate u pogledu sadržaja ukupnih aromatičnih jedinjenja, estara i kiselina. Pored toga, sadržaj ukupnih aromatičnih jedinjenja je bio viši u vinima dobijenim fermentacijom samotoka (K sam, Z sam) u poređenju sa vinima dobijenim primenom pritiska tokom presovanja kljuka (K pres, Z pres). Vina koja su sazrevala godinu dana imala su bolje senzorne i hemijske karakteristike. Utvrđen je viši sadržaj etil estara (etil laktata, dietil sukcinata, dietil hidroksibutandioata, etil hidrogen sukcinata) i γ-butirolaktona i niže koncentracije acetata, u odnosu na vina koja nisu sazrevala. Senzornom ocenom utvrđeno je da su Krstač vina bila ćilibarne boje, imala su miris sa tonovima meda i ukus je bio umereno pun, dok su Žižak vina imala izraženiji miris sorte, prijatan ukus, umerene punoće sa solidnim kiselinima. Rezultati ovih istraživanja imaju veliki praktični značaj, jer proizvođačima vina obezbeđuju informacije o načinu vinifikacije, čime se poboljšava kvalitet belih vina. Imaju i naučni značaj jer su dali doprinos opštim saznanjima o karakteru arome vina, i prvi put su objavljeni podaci o aromatičnom profilu autohtonih sorti Krstač i Žižak." ]
[ "The research in this doctoral dissertation aimed to show the content of aromatic compounds in grapes and the aromatic profile of the wines of autochthonous Montenegrin grapevine varieties Krstač and Žižak. The sample preparation method consisted of liquid-liquid extraction, and aromatic compounds were detected by GC/FID-MS analysis. Higher alcohols, ethyl esters, acetates, lactones and fatty acids were identified in white wines produced by various microvinification methods. Using maceration for 4 and 8 hours and enzymatic preparations (Lallzyme cuveé blanc and beta), it was determined that the content of total aromatic compounds was significantly higher in the samples of K EB4h and Z CB4h wines, compared to the control. Maceration and the use of enzyme preparations increased the content of 2-phenylethyl and isoamyl alcohol, followed by hexanoic and octanoic acid. In addition, in all wine samples, the content of esters responsible for the fruity aroma of wine (isoamyl acetate, ethyl hexanoate and 2-phenylethyl acetate) was increased, compared to the control. This paper studied the influence of two yeasts and yeast nutrients on the content of aromatic compounds. It was found that during alcoholic fermentation, Saccharomyces cerevisiae synthesizes a higher content of total aromatic compounds than Saccharomyces bayanus with the addition of the same yeast nutrients. When higher alcohols were not included in the content of total aromatic substances, the highest concentration of aromatic compounds was in the wines K Bay E and Z Bay E. The yeast Saccharomyces cerevisiae synthesizes a higher concentration of isoamyl alcohol, 2-phenylethyl and isobutyl alcohol, compared to Saccharomyces bayanus. It was concluded that the yeast used in the experiment had a significant influence on the formation of different concentrations of ethyl ester and acetate, while a particular yeast nutrient emphasizes its different characteristics. The wines of Krstač and Žižak, which were obtained by settling over a period of 30 hours, had the best results in terms of the content of total aromatic compounds, esters and acids. In addition, the content of total aromatic compounds was higher in the wines obtained by free-run juice fermentation (K sam, Z sam) compared to the wines obtained by applying pressure during mash pressing (K pres, Z pres). Wines that matured for a year had better sensory and chemical characteristics. A higher content of ethyl esters (ethyl butyrate, ethyl lactate, diethyl succinate, diethyl hydroxybutanedioate, ethyl hydrogen succinate) and γ-butyrolactone and lower acetate concentrations were determined, compared to wines that did not mature. The sensory evaluation determined that the Krstač wines were amber in colour, had an aroma with tones of honey, and the taste was moderately full, while the Žižak wines had a more pronounced aroma of the variety, a pleasant taste, moderate fullness with solid acidity. These research results have great practical importance, because they provide wine producers with information about the vinification method, which improves the quality of white wines. They are also of scientific importance, as they contribute to general knowledge about the character of the wine aroma, and information on the aromatic profile of the autochthonous Krstač and Žižak varieties are published for the first time" ]
application/pdf
sr
Универзитет у Београду, Пољопривредни факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "aromatična jedinjenja", "GC/FID-MS analiza", "tretmani šire i vina", "belo vino", "autohtone sorte grožđa Krstač i Žižak", "senzorna ocena" ]
[ "aromatic compounds", "GC/FID-MS analysis", "must and wine treatments", "white wine", "autochthonous grape varieties Krstač i Žižak", "sensory evaluation" ]
[ "Dinamika sadržaja aromatičnih materija grožđa sorti Krstač i Žižak tokom sazrevanja i vinifikacije i njen uticaj na senzorne karakteristike vina" ]
[ "Dynamics of the content of aromatic substances in grapes of the Krstač and Žižak varieties during maturation and vinification and its influence on the sensory characteristics of wine" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151646/Disertacija_13657.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152471/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30562/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21576" ]
[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/21577
123456789-21577.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30570/bdef:Content/download
no
Uticaj ultrazvučnog i toplotnog predtretmana na tehnološka i funkcionalna svojstva sušene konzumne i začinske paprike
Influence of ultrasound and heat pretreatment on technological and functional properties of dried bell and paprika pepper
[ "Sredović Ignjatović, Ivana" ]
[ "Lević, Steva", "Antić, Mališa", "Vukosavljević, Predrag", "Onjia, Antonije" ]
Lučić, Milica
2023-09-06T11:01:57
[ "2023-09-06T11:01:57" ]
2023-02-14
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/5078/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9197", "https://fedorabg.bg.ac.rs/fedora/get/o:30570/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/121769737", "https://nardus.mpn.gov.rs/handle/123456789/21577" ]
[ "SAŽETAK Cilj ovoga istraživanja bio je unapređenje funkcionalnih i tehnoloških svojstava sušene konzumne i začinske paprike kroz primenu različitih predtretmana i metoda sušenja. Istraživanja su obuhvatila ispitivanje nutritivnih i antioksidativnih parametara svežih plodova i nutritivnih, antioksidativnih i fizičkih parametara prerađenih plodova konzumne i začinske paprike. Ispitan je uticaj različitih predtretmana, kao što su blanširanje, hemijski predtretman, ultrazvuk i njihove međusobne kombinacije. Dodatno, proučavan je i uticaj metoda sušenja - sušenje u tunelskoj sušari strujom toplog vazduha i sušenje postupkom liofilzacije. Glavni cilj je bio utvrđivanje najpogodnije kombinacije predtretmana i metoda sušenja za očuvanje nutritivnih, antioksidativnih i senzornih karakteristika sušene paprike. Frakcioni faktorijski dizajn je upotrebljen za proučavanje uticaja ovih faktora. U okviru prvog dela istraživanja izvršena je analiza mineralnog sastava komercijalno dostupnih svežih i prerađenih paprika kao i analiza sadržaja vitamina C kod četiri sorte konzumne paprike u tri stepena zrelosti. Takođe je izvršena i procena dijetetskog unosa minerala i zdravstvenog rizika koji potiče od toksičnih elemenata usled konzumacije plodova paprike. Rezultati ovih analiza ukazali su da plodovi paprike ne predstavljaju značajan izvor minerala, gde količine prisutne u prosečnim porcijama za decu i odrasle nisu dovoljne za zadovoljenje preporučenih dnevnih potreba. Izuzetak su bili određeni kiseli i sveži plodovi koji predstavljaju značajniji izvor Cu, Cr i Mo. Analizom sadržaja minerala u tri stepena zrelosti kod sorte Kurtovska kapija zapaženo je da se sadržaj minerala kontinualno menja tokom sazrevanja ploda što se ogleda u višem usvajanju K, Zn, Mg, Cu, B i gotovo stalnoj cirkulaciji Mg i Fe do pune zrelosti ploda. Rezultati ispitivanja zdravstvenog rizika su ukazali da plodovi paprike i njihovi proizvodi ne nose zdravstveni rizik za decu i odrasle usled unosa toksišnih elemenata kao što su Al, Hg, Cd i As. Većina analiziranih paprika je bila odličan izvor vitamina C sa sadržajem L-askorbinske kiseline većim od 100 mg/100 g, što znači da konzumacijom 100 g sveže paprike može se zadovoljiti preporučeni dnevni unos vitamina C. U drugom delu istraživanja izvršena je analiza uticaja određenih predtretmana na mineralni sastav, sadržaj ukupnih fenolnih jedinjenja, antioksidativnu aktivnost i sadržaj L-askorbinske kiseline. U prvoj seriji eksperimenata ispitivano je ispiranje makro-, mikro- i elemenata u tragovima tokom ultrazvučnog pretretmana u vodi i rastvoru sirćetne kiseline. Za ovaj set eksperimenata upotrebljeni su plodovi sorte Kurtovska kapija. Do najvećih gubitaka minerala je došlo tokom prerade zelenih plodova, dok je ultrazvučni predtretman sa sirćetnom kiselinom poboljšao ekstrakciju toksičnih elemenata kao što su Al, Hg i As. Iako je ultrazvučni predtretman u rastvoru sirćetne kiseline doprineo najvećem uklanjanju toksičnih elemenata istovremeno je uticao i na značajne gubitke Fe (do 77% ukupnog gvožđa). U drugoj seriji eksperimenata ispitivan je uticaj ultrazvučnog, hemijskog i toplotnog predtretmana na sadržaj ukupnih fenolnih jedinjenja, antioksidativnu aktivnost i sadržaj L-askorbinske kiseline kod začinske paprike. Najveći uticaj na sadržaj ukupnih fenolnih jedinjenja i L-askorbinske kiseline od primenjenih predtretmana imala je temperatura predtretmana, gde su više temperature izazvale veće gubitke (50 i 80 oC). Primenjeni predtretmani nisu značajno uticali na antioksidativnu aktivnost prethodno tretirane začinske paprike. U trećem delu istraživanja izvršeno je ispitivanje uticaja primenjenih predtretmana i metoda sušenja na kvalitet sušene konzumne i začinske paprike. Kod sušene začinske paprike rađene su sledeće analize: mineralni sastav, sadržaj ukupnih polifenola, sadržaj ukupnih karotenoida, antioksidativna aktivnost, sadržaj L-askorbinske kiseline, boja (CIELab i ne-enzimatski indeks tamnjenja), tekstura, morfološke karakteristike i mikrobiološka aktivnost kod sušene začinske paprike, dok je kod sušene konzumne paprike ispitivan sadržaj L-askorbinske kiseline i mikrobiološka aktivnost. Cilj je bio da se utvrdi uticaj različitih faktora (vreme predtretmana, temperatura predtretmana, primenjeni aditiv, pH vrednost rastvora za predtretman, primena ultrazvuka, masa uzorka koji se tretira, veličina komadića i način sušenja) na navedene parametre kvaliteta sušene paprike. Nekoliko faktora je značajno uticalo na kvalitet sušene začinske paprike..." ]
[ "This thesis aimed to improve the functional and technological properties of dried bell and paprika peppers by applying different pretreatments and drying methods. The research included the examination of nutritional and antioxidant parameters of fresh peppers and nutritional, antioxidant, and physical parameters of the processed dried bell and paprika peppers. The influence of different pretreatments, such as blanching, chemical pretreatment, ultrasound and their combinations, was investigated. Additionally, the effect of drying methods was studied - drying in a tunnel dryer with hot air and freeze-drying. The main goal was to determine the most suitable combination of pretreatments and drying methods for the preservation of nutritional, antioxidant, and sensory properties of dried pepper. Fractional factorial designs were used to study the effects of these factors. Within the first part of the research, the analysis of the mineral composition of commercially available fresh and processed peppers was performed, as well as the analysis of vitamin C content in four cultivars of bell peppers in three ripening stages. Dietary mineral intake and health risks assessment of toxic elements due to the consumption of pepper fruits were also evaluated. The results of these analyzes indicated that pepper fruits are not a significant source of minerals, where the amounts present in average portions for children and adults are not sufficient to meet the recommended daily needs. The exceptions were certain sour and fresh fruits, which are a significant source of Cu, Cr, and Mo. Analysis of mineral content in three ripening stages for the cultivar Kurtovska kapiya showed that the mineral content changes continuously during fruit ripening, which is reflected in higher absorption of K, Zn, Mg, Cu, B and almost constant circulation of Mg and Fe until full fruit maturity. The results of the health risk study indicated that pepper fruits and their products do not represent a health risk for children and adults due to the intake of toxic elements such as Al, Hg, Cd, and As. Most of the analyzed peppers were excellent sources of vitamin C with L-ascorbic content higher than 100 mg/100g, which means that eating 100 g of fresh pepper is enough to meet the recommended daily intake. The second part of the study examined the effects of different pretreatments on mineral composition, total phenolics content, antioxidant activity, and L-ascorbic acid content. The first series of experiments investigated leaching of macro-, mirco- and trace elements during ultrasound pretreatment in water and acetic acid solution. The cultivar Kurtovska kapiya was used for this set of experiments. The highest leaching of elements occurred during the processing of green fruits, while ultrasonic pretreatment with acetic acid improved the extraction of toxic elements Al, Hg and As. Although ultrasonic pretreatment with acetic acid solution contributed to the highest removal of the toxic elements, it also caused a significant loss of Fe (up to 77% of total iron). The second series of experiments investigated the effects of ultrasonic, chemical, and thermal pretreatments on the total phenolics content, antioxidant activity, and L-ascorbic acid content of paprika pepper. The pretreatment temperature highly influenced the total phenolics and L-ascorbic acid content, with higher temperatures causing higher leaching of these compounds (50 and 80 oC). The applied pretreatments did not significantly affect the antioxidant activity of previously treated peppers. The third part of the research investigated the effects of applied pretreatments and drying methods on dried paprika and bell pepper quality. For dried paprika peppers following analyses were performed: mineral composition, total phenolics content, total carotenoids content, antioxidant activity, L-ascorbic acid content, color (CIELab and non-enzymatic browning index), texture, morphological properties, and microbiological activity, while for dried bell peppers L-ascorbic acid content and microbiological activity were investigated. The aim was to determine the influence of various factors (pretreatment time, pretreatment temperature, applied additives, pH value of pretreatment solution, application of ultrasound, mass of the treated peppers, pieces size, and drying methods) on the mentioned parameters of dried pepper quality..." ]
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Универзитет у Београду, Пољопривредни факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Derringerova funkcija poželjnosti", "faktorijski dizajn", "Box-Behnken dizajn", "ultrazvuk", "limunska kiselina", "kalijum-metabisulfit", "sirćetna kiselina", "procena zdravstvenog rizika", "procena dijetetskog unosa", "L-askorbinska kiselina" ]
[ "Derringer desirability function", "factorial design", "Box-Behnken design", "ultrasound", "citric acid", "potassium-metabisulfite", "acetic acid", "health risk assessment", "dietary intake assessment", "L- ascorbic acid" ]
[ "Uticaj ultrazvučnog i toplotnog predtretmana na tehnološka i funkcionalna svojstva sušene konzumne i začinske paprike" ]
[ "Influence of ultrasound and heat pretreatment on technological and functional properties of dried bell and paprika pepper" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151649/Disertacija_13658.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152473/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30570/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21577" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/21585
123456789-21585.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30505/bdef:Content/download
no
Правна природа међународних финансијских аранжмана
Legal nature of international financial arrangements
[ "Milisavljević, Bojan" ]
[ "Jovanić, Tatjana", "Rakić, Branko", "Lukić, Maja", "Dimitrijević, Marko B." ]
Vićić, Marija
2023-09-06T11:02:29
[ "2023-09-06T11:02:29" ]
2023-02-14
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/5075/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9181", "https://fedorabg.bg.ac.rs/fedora/get/o:30505/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/111015945", "https://nardus.mpn.gov.rs/handle/123456789/21585" ]
[ "У овом раду аутор покушава да испита правну природу међународних финансијских аранжмана. Аутор полази од претпоставке да су међународни финансијски аранжмани акти мешовите природе, те да је тренутно у пракси нејасно која би се правна правила применила на њих – да ли би то била правила међународног или приватног права. Ово питање од значаја је и за праксу, будући да од тумачења правне природе међународних финансијских аранжмана зависи њихов третман у пракси – да ли ће се тумачити у складу са правилима међународног права, или правилима приватног права. Аутор се бави анализом субјеката међународног права који су истовремено и субјекти међународних финансијских аранжмана. Аутор даје приказ основних елемената и правила која се примењују на поменуте субјекте. Све ово је у циљу даљег разумевања функционисања међународних финансијских аранжмана, будући да је одређивање субјеката неопходно да би се ови аранжмани разликовали од аранжмана које субјекти међународног права закључују са приватноправним субјектима – физичким и правним лицима у смислу приватног права. Аутор искључује анализу правне природе потоњих аранжмана сматрајући да њихова правна природа није спорна и да је у том случају реч о актима приватног права, те се та правна правила на њих имају примењивати. Такође, аутор се у овом делу бави и анализом сувереног (јавног) дуга будући да је он суштински објекат међународних финансијских аранжмана, а исти везује за појам државе, као један од елемената државног функционисања у макроекономском смислу. У циљу разумевања правне природе међународних финансијских аранжмана, аутор сматра да је важно позабавити се анализом њихове форме. Стога се аутор бави анализом међународних уговора с обзиром на то да велики број међународних финансијских аранжмана има форму међународних уговора. Овде се аутор ограничава на анализу оних међународних финансијских аранжмана који су управо у форми међународних уговора с обзиром на њихову фактичку доступност, и то пре свега на анализу међународних инвестиционих (пројектних) аранжмана будући да је највећи број ових аранжмана управо јавно доступан. Затим, аутор представља своје виђење међународних финансијских аранжмана, дефинише их и представља њихове основне елементе и карактеристике. Аутор прави поделу међународних финансијских аранжмана према њиховој сврси и према њиховој врсти. Према сврси међународни финансијски аранжмани деле се на макроекономске (монетарне и сличне) међународне финансијске аранжмане и инвестиционе (пројектне) међународне финансијске аранжмане који су у фокусу ауторове анализе. Даље аутор прави поделу међународних финансијских аранжмана према њиховој врсти. Аутор сматра да су типични облици међународних финансијских аранжмана међународни кредитни аранжмани, међународни гаранцијски послови, послови бесповратних давања, а да су други појавни облици који имају примесе међународног финансирања послови издавања државних дужничких хартија од вредности, те послови са финансијским дериватима и послови улагања. Аутор сваки од ових послова понаособ анализира, а за поједине (водеће и према врсти доминантне и типичне) међународне финансијске аранжмане даје приказе практичних реалних примера аранжмана које је закључивала Република Србија." ]
[ "Hereby the author tries to examine legal nature of international financial arrangements. Author begins with assumption that international financial arrangements represent mixed acts in their nature, so it is currently unclear in legal practice which legal rules should apply to them – whether it will be legal rules of international public law or legal rules of private law. This question is very important for legal practice, due to the fact that interpretation of legal nature of international financial arrangements depends on their practical treatment – whether they will be interpreted in line with legal rules of international law or rules of private law. The author analyses subjects of international law that are at the same time subjects of international financial arrangements. Author shows main elements and legal rules applicable to the mentioned subjects. This is performed with the aim of better understanding of functioning of international financial arrangements, because determination of their subjects is necessary in order to differ those arrangements from the arrangements that subjects of international law enter into with private subjects – natural and legal persons in line with private law. Author excludes analysis of legal nature of the arrangements with private law subjects as she considers that their legal nature is not disputable and that they represent private law acts, and that legal rules of private law should apply to them. Also, the author analyses in this part question of sovereign (public) debt given that it is crucial object of the international financial arrangements, and she ties it with the state, as one of state elements in its functioning in macroeconomic sense. With the aim of understanding of legal nature of international financial arrangements, hereby the author analyses international agreements due to the fact that a huge number of international financial arrangements have form of international agreements. In this part the author limits the analysis of such international financial arrangements that are done in form of international agreements due to their factual availability, and specifically to the analysis of international investment (project) arrangements as the large number of those arrangements are publicly available. Further, hereby the author shows her views of international financial arrangements, provides definitions, and shows their main elements and characteristics. The Author makes distinction of international financial arrangements according to their purpose and their types. Distinction according to its purpose contains international macroeconomic (monetary etc.) international financial arrangements and investment (project) international financial arrangements that remain in focus of the author’s further analysis. The author is of the view that typical types of international financial arrangements are international credit arrangements, international guarantee transactions and grant transactions, and that there are other types that have elements of international finance such as issuance of state debt securities, financial derivatives transactions, and investment transactions. Author analyses each type of the said transactions, and for some of them (dominant and according to their type typical) international financial arrangements shows their practical real examples of the arrangements concluded with the Republic of Serbia." ]
application/pdf
sr
Универзитет у Београду, Правни факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Београду
[ "међународни финансијски аранжмани", "међународна одговорност", "правна природа", "акти iure imperii", "акти iure gestionis", "сувереност", "суверени дуг" ]
[ "international financial arrangements", "international responsibility", "legal nature", "acts iure imperii", "acts iure gestionis", "sovereignty", "sovereign debt" ]
[ "Правна природа међународних финансијских аранжмана" ]
[ "Legal nature of international financial arrangements" ]
doctoralThesis
[ "BY" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151673/Disertacija_13642.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152474/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30505/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21585" ]
[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/21556
123456789-21556.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30473/bdef:Content/download
no
Razvoj vizuelno-prostornih veština i geometrijskog mišljenja studenata učiteljskih fakulteta zasnovan na metodi usmerenog opažanja i teoriji van Hila
Development of visual-spatial skills and geometric thinking of pre-service primary education teachers based on the directed observation and van Hiele's theory
[ "Mateljević, Miodrag" ]
[ "Lipkovski, Aleksandar", "Knežević, Miljan", "Milinković, Jasmina" ]
Baranović, Nives
2023-09-06T10:59:57
[ "2023-09-06T10:59:57" ]
2022-09-29
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/5016/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9165", "https://fedorabg.bg.ac.rs/fedora/get/o:30473/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/121634569", "https://nardus.mpn.gov.rs/handle/123456789/21556" ]
[ "Budući učitelji primarnog obrazovanja trebaju prvo sami steći odgovarajuća matematička znanja, vještine i umijeća, kako bi osigurali odgovarajuće okruženje za razvoj tih istih znanja, vještina i umijeća učenicima koje budu poučavali. Različita istraživanja u obrazovanju pokazuju da učenici svih uzrasta imaju teškoća u savladavanju geometrijskih koncepata i ostvarivanju funkcionalnih veza među njima, posebno na prijelazu sa školske na sveučilišnu razinu. Stoga je provedeno kvazieksperimentalno istraživanje sa neekvivalentnim grupama budućih učitelja primarnog obrazovanja s ciljem utvrđivanja učinkovitosti posebnog načina poučavanja u svrhu razvoja vještina vizualizacije, geometrijskog mišljenja i optimiziranja ishoda učenja geometrije. Za prikupljanje podataka o karakteristikama sudionika istraživanja korištena su tri testa prije i poslije poučavanja: VH test radi mjerenja razina geometrijskog mišljenja, GEO test radi stjecanja uvida u geometrijska znanja i vizualne vještine te SPAC test radi mjerenja posebne vizualno-prostorne sposobnosti uspostavljanja veza između 3D figura i njihovih mreža. U eksperimentalnoj grupi primijenjeno je posebno poučavanje temeljeno na vizualno-analitičkoj metodi i usmjerenom opažanju te balansiranju triju načina izražavanja: jezičnog, vizualnog i simboličkog. Strukturiranje i odabir nastavnih aktivnosti planirano je prema van Hieleovim fazama učenja u pet faza. Rezultati na pred testiranju potvrdili su prilično slaba predznanja, vještine vizualizacije i razine geometrijskog mišljenja svih sudionika, ali i posjedovanje odgovarajućih vizualno-prostornih sposobnosti kojima se predviđa mogući uspjeh. T-testom je potvrđeno da među sudionicima na početku poučavanja nema statistički značajne razlike, a Spearmanovim koeficijentom korelacije utvrđena je pozitivna statistički značajna korelacija između sva tri testa, što znači da se razmatrane vještine i znanja mogu uzajamno razvijati. Rezultati na post testiranju potvrdili su učinkovitost primijenjenih strategija i metoda poučavanja u ostvarivanju boljih ishoda učenja geometrije, razvoju vizualne pismenosti te napredak u razinama geometrijskog mišljenja sudionika eksperimentalne grupe. Sudionici eksperimentalne grupe su na post testiranju imali statistički značajno bolje rezultate u odnosu na rezultate koje su ostvarili na pred testiranu, ali i u odnosu na rezultate koje su ostvarili sudionici kontrolne grupe, koji su poučavani više na tradicionalan način. Sudionici kontrolne grupe su također ostvarili napredak, ali ne statistički značajan. Predstavljeni rezultati potvrđuju da se, kroz sustavno učenje i poučavanje, geometrija i vizualna pismenost mogu razvijati na različitim razinama obrazovnog sustava." ]
[ "Future primary education teachers should acquire appropriate mathematical knowledge, skills, and abilities to provide a suitable environment for developing their prospective students' responding knowledge, skills, and abilities. Various studies in education show that students of all ages have difficulties mastering geometric concepts and making functional connections between them, especially at the transition from school to university level. Therefore, a quasi-experimental study was conducted with non-equivalent groups of future primary education teachers. The study aimed to determine a particular teaching method's effectiveness for developing visualization skills, geometric thinking, and optimizing geometry learning outcomes. Three tests were used before and after teaching to collect data on the characteristics of the research participants. The tests were: the VH test to measure the level of geometric thinking, the GEO test to gain insight into geometric knowledge and visual skills, and the SPAC test to measure the unique visual-spatial ability to establish connections between 3D figures and their networks. In the experimental group, a specific teaching approach was applied. The teaching approach is based on the visual-analytical method and directed observation and balancing of three ways of expression: linguistic, visual, and symbolic. Van Hiele's five stages of learning were used in the structuring and selecting of teaching activities. The pre-test results confirmed the relatively weak prior knowledge, visualization skills, and level of geometric thinking of all participants, and the possession of appropriate visual-spatial abilities that predict possible success. The t-test confirmed no statistically significant difference between the participants at the beginning of the teaching. The Spearman correlation coefficient determined a positive, statistically significant correlation between all three tests, indicating a possibility for mutual development. The post-test results confirmed the effectiveness of the applied strategies and teaching methods in achieving better geometry learning outcomes, developing visual literacy, and progress in the levels of geometric thinking of the participants in the experimental group. The experimental group participants had statistically significantly better results on the post-test than the results they achieved on the pre-test compared to the results achieved by the control group participants who were taught more traditionally. Participants in the control group also improved, but these improvements were not statistically significant. The above confirmed that it is possible to develop geometry and visual literacy through systematic learning and teaching at different levels of the educational system." ]
application/pdf
sr
Универзитет у Београду, Математички факултет
[ "" ]
[ "openAccess" ]
[ "" ]
Универзитет у Београду
[ "aksiomatska metoda", "definiranje", "dokazivanje", "geometrijska konstrukcija", "geometrijsko mišljenje", "strategije poučavanja", "van Hieleova teorija", "vizualizacija", "vizualno-prostorne sposobnosti", "rješavanje problema" ]
[ "axiomatic method", "defining", "proving", "geometric construction", "geometric thinking", "teaching strategies", "van Hiele theory", "visualization", "visual-spatial abilities", "problem solving" ]
[ "Razvoj vizuelno-prostornih veština i geometrijskog mišljenja studenata učiteljskih fakulteta zasnovan na metodi usmerenog opažanja i teoriji van Hila" ]
[ "Development of visual-spatial skills and geometric thinking of pre-service primary education teachers based on the directed observation and van Hiele's theory" ]
doctoralThesis
[ "Autorstvo-Deliti pod istim uslovima 3.0 Srbija (CC BY-SA 3.0)" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151586/Disertacija_13628.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152481/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30473/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21556" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/21588
123456789-21588.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30461/bdef:Content/download
no
Bioactive materials based on α-tricalcium phosphate cement and fluoroapatite
Bioaktivni materijali na bazi α-trikalcijum-fosfatnih cemenata i fluoroapatita: sinteza, svojstva i primena u stomatologiji
[ "Janaćković, Đorđe" ]
[ "Radovanović, Željko", "Veljović, Đorđe", "Petrović, Rada", "Miletić, Vesna" ]
Kazuz, Abdul
2023-09-06T11:03:07
[ "2023-09-06T11:03:07" ]
2022-07-08
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/4893/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9160", "https://fedorabg.bg.ac.rs/fedora/get/o:30461/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/121507081", "https://nardus.mpn.gov.rs/handle/123456789/21588" ]
[ "Calcium phosphates (CaPs) are an important group of ceramic materials widely used in dentistry and medicine as many of them are very similar to the inorganic part of teeth and bones in humans. Among CaPs, hydroxyapatite (Ca10(PO4)6(OH)2, HAp) is the most attractive and intensely studied biomaterial due to exceptional biocompatibility and bioactivity. However, the main drawback of HAp is its brittleness which makes it difficult to use it as a primary material for implants or fillers. By using CaPs derived from HAp, it is possible to overcome this disadvantage while retaining good properties. α-Tricalcium phosphate (α-Ca3(PO4)2, α-TCP) can be prepared from calcium deficient HAp by calcination above temperatures ~ 1150 ºC, and it can be used as bone cement. The most stable CaPs – fluorapatite (Ca10(PO4)6F2, FAp) can be obtained by replacing the OH– ions in HAp with the F– ions. FAp can slow down demineralization by releasing F– ions that strengthen the enamel. These two materials, α-TCP and FAp, form a composite with satisfactory mechanical properties that could fill the cavity after removal of damaged dental tissue and also remineralize the surrounding tissue. The research work presented in this dissertation focuses on synthesis and characterization of composite cements based on α-TCP and nanostructured FAp, α-TCP/FAp, appropriate for dental usage as root canal filling material. Synthesized α-TCP/FAp composites had improved mechanical properties and biocompatibility in comparison to α-TCP. The α-TCP powder was prepared by calcination of hydrothermally synthesized HAp at 1500 ˚C for 2 h. The processing conditions for FAp powders synthesis were optimized and the powder with optimal properties was chosen to obtain α-TCP/FAp composite types of cement. The influence of FAp concentration on the composite cement properties was investigated. The FAp powder was mixed with α-TCP to obtain composites with 0, 2.5, 5 and 10 wt% of FAp. The phosphate solution (2.5 wt% Na2HPO4) was added to the prepared powder mixtures at a liquid to powder ratio of 0.32 ml g–1 to obtain cement paste and then make specimens in the appropriate mold for further testing. Morphology and phase composition of powders were investigated by X-ray diffraction (XRD), Fourier transformed infrared spectroscopy (FTIR), Field emission scanning electron microscopy (FESEM), and energy- dispersive X-ray spectroscopy (EDS). Soaking of α-TCP/FAp specimens in simulated body fluid (SBF) affected the successful transformation of α-TCP into HAp, while the compressive test revealed the influence of this transformation and FAp content on the mechanical properties of the composites. Specimen containing 5% of FAp after 10 days in simulated body fluid (SBF) solution showed the highest compressive strength, 33.8 MPa, which is a 84-fold increase compared to α- TCP/FAp before SBF. In vitro MTT and DET biocompatibility tests, performed using cell culture of MRC-5 human fibroblast cells, revealed that α-TCP/FAp had no cytotoxic effect. These findings showed that α-TCP/FAp composite cements could yield favorable mechanical properties with no adverse effect on biocompatibility. In the second part of the thesis, cement pastes made from different liquid compositions were investigated and the most suitable one for obtaining rheologically optimal paste was chosen for further analysis. The α-TCP/FAp cements with 0, 5 and 10 wt% of FAp were obtained withnew liquid and investigated as dental root canal filling cements. Morphological changes in the cement materials as a result of the formation of HAp after SBF immersion, an influence on the cell viability, and the final success of the fillings were investigated by FESEM. Treatment of α- TCP/FAp mixtures in SBF at 37 °C led to a complete transformation of α-TCP into HAp after 10 days. The exposure of MRC-5 human and L929 animal fibroblast cells to the cement showed a complete absence of cytotoxicity. When the root canal of an extracted tooth was filled with α- TCP/FAp cement containing 5 wt. % of FAp relatively strong adhesion between the cement and dentin was observed after 48 h. The same cement material was immersed during 10 days in SBF and subsequently subjected to in vitro MTT testing on human and animal fibroblast cells, during which showed increased cell viability compared to a control sample. These findings lead to a conclusion that α-TCP/FAp based cement with 5 wt% FAp showed the greatest potential for further development towards dental application" ]
[ "Калцијум-фосфати (КФ) су важна група керамичких материјала који се широко користе у стоматологији и медицини јер су многи од њих веома слични неорганском делу зуба и костију људи. Међу КФ, хидроксиапатит (Ca 10(PO4)6(OH)2, ХАп) је најатрактивнији и најинтензивније проучаван биоматеријал, који се одликује значајном биокомпатибилношћу и биоактивношћу. Међутим, главни недостатак ХАп-а је његова кртост због чега није погодан за употребу као примарни имплантат или пунилац. Коришћењем КФ-а изведених из ХАп-а, могуће је превазићи овај недостатак уз задржавање добрих својстава. α-Трикалцијум фосфат (α-Ca3(PO4)2, α-ТКФ) се може добити калцинацијом калцијум дефицитарног ХАп-а изнад ~1150 ºС и може се користити као коштани цемент. Најстабилнији КФ – флуорапатит (Ca10(PO4)6F2, ФАп) се доби ја заменом OH– joнa у структури ХАп-а F– јонима. ФАп може успорити деминерализацију зуба ослобађањем F– јона који јачају глеђ. Ова два материјала, α- ТКФ и ФАп, могу створити композит задовољавајућих механичких својстава који би могао попунити шупљину након уклањања оштећеног зубног ткива и такође реминерализовати околно зубно ткиво. У овој дисертацији представљена је синтеза и карактеризација композитних цемената на бази α-ТКФ и наноструктурног ФАп, α-ТКФ/ФАп, погодних за стоматолошку употребу као материјала за пуњење канала корена зуба. α-ТКФ/ФАп су припремљени са побољшаним механичким својствима и биокомпатибилношћу. α-ТКФ прах је припремљен калцинацијом хидротермално синтетизованог ХАп-а на 1500 ˚С током 2 сата. Услови синтезе ФАп праха су оптимизовани и прах са најбољим својствима је изабран за добијање α-ТКФ/ФАп композитних цемента. Испитан је утицај концентрације ФАп на својства композитног цемента. ФАп прах је помешан са α-ТКФ у таквом односу да би се добили композити са 0; 2,5; 5 и 10 мас.% ФАп-а. Раствор фосфата (2,5 мас.% Na2HPO4) је додат припремљеним мешавинама праха при односу течност: прах од 0,32 ml g–1 да би се добила цементна паста, а затим су направљени узорци у одговарајућем калупу за даља испитивања. Изглед и фазни састав прахова испитивани су рендгенском дифракцијом праха (РДП), инфрацрвеном спектроскопијом са Фуријеовом трансформацијом (ИЦФТ), скенирајућом електронском микроскопијом (СЕМ) и енергетском дисперзивном рендгенском спектроскопијом (ЕДС). Одстојавање α-ТКФ/ФАп узорака у симулираној телесној течности (СТТ) довело је до успешне трансформације α-ТКФ у ХАп, док је испитивање притисне чврстоће показало утицај ове трансформације и садржаја ФАп на механичке својства композита. Узорак са 5 мас.% ФАп-а после 10 дана у СТТ показао је највећу чврстоћу на притисак, 33,8 MPa, што је повећање од 84 пута у поређењу са α-ТКФ/ФАп пре СТТ. In vitro тестови биокомпатибилности МТТ и ДЕТ, спроведени са ћелијском културом МРЦ-5 хуманих фибробласта, открили су да α-ТКФ/ФАп нема цитотоксични ефекат. Ови налази су показали да α-ТКФ/ФАп композитни цементи могу обезбедити повољна механичка својства без штетног утицаја на биокомпатибилност. У другом делу дисертације испитане су различите течности за добијање цементне пасте и за даљу анализу изабрана је течност најпогоднија за добијање реолошки најбољих пасти. α-ТКФ/ФАп цементи са 0, 5 и 10 мас.% ФАп-а, умешани са новом течношћу испитивани су као цементи за пуњење зубних канала. Морфолошке промене у цементним материјалима као последица формирања ХАп-а након држања у СТТ, утицај на вијабилност ћелија и ефикасност пуњења испитивани су СЕМ-ом. Третман композитних α-ТКФ/ФАп цемената у СТТ на 37 °С резултирао је потпуном трансформацијом α-ТКФ у ХАп после 10 дана. Излагање МРЦ-5 хуманих и Л929 животињских фибробластних ћелија цементу показало је потпуно одсуство цитотоксичности. Канал корена екстрахованог зуба испуњен је α-ТКФ/ФАп цементом са 5 мас.% ФАп и релативно јака адхезија између цемента и дентина примећена је након 48 сати. Исти цементни материјал је уроњен током 10 дана у СТТ и након тога подвргнут in vitro МТТ тестовима са хуманим и животињским фибробластним ћелијама које су показале већу вијабилност у поређењу са контролним узорком. Ови налази доводе до закључка да цемент на бази α-ТКФ/ФAп са 5 мас.% ФАп показује највећи потенцијал за даљи развој у правцу стоматолошке примене." ]
application/pdf
sr
Универзитет у Београду, Технолошко-металуршки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Composites", "Mechanical properties", "Apatite", "Biomedical applications" ]
[ "композити", "механичка својства", "апатит", "примена у биомедицини" ]
[ "Bioactive materials based on α-tricalcium phosphate cement and fluoroapatite" ]
[ "Bioaktivni materijali na bazi α-trikalcijum-fosfatnih cemenata i fluoroapatita: sinteza, svojstva i primena u stomatologiji" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151682/Disertacija_13624.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152488/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30461/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21588" ]
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https://nardus.mpn.gov.rs/handle/123456789/21565
123456789-21565.pdf
yes
yes
https://fedorabg.bg.ac.rs/fedora/get/o:30675/bdef:Content/download
no
Утапање простора хармонијских функција са мешовитом нормом у ограниченим областима у Rn
Embeddings of harmonic mixed norm spaces in bounded domains in Rn
[ "Arsenović, Miloš" ]
[ "Mateljević, Miodrag", "Mihić, Olivera" ]
Jovanović, Tanja
2023-09-06T11:00:34
[ "2023-09-06T11:00:34" ]
2022-07-15
[ "https://eteze.bg.ac.rs/application/showtheses?thesesId=9228", "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/4872/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30675/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/121601801", "https://nardus.mpn.gov.rs/handle/123456789/21565" ]
[ "U ovom radu predmet razmatranja su teoreme utapanja težinskih Bergmanovih prostora u Lp- prostore, kao i teoreme utapanja prostora harmonijskih funkcija sa mešovitom normom..." ]
[ "In this thesis, subjects of consideration are the embeddings theorems of weighted Bergman spaces in Lp -spaces, as well as embeddings theorems of harmonic mixed norm spaces..." ]
application/pdf
sr
Универзитет у Београду, Математички факултет
[ "" ]
[ "openAccess" ]
[ "" ]
Универзитет у Београду
[ "harmonijske funkcije", "Hardijevi prostori", "Bergmanovi prostori", "mešoviti prostori" ]
[ "harmonic function", "Hardy spaces", "Bergman spaces", "Mixed norm spaces" ]
[ "Утапање простора хармонијских функција са мешовитом нормом у ограниченим областима у Rn" ]
[ "Embeddings of harmonic mixed norm spaces in bounded domains in Rn" ]
doctoralThesis
[ "ARR" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151613/Disertacija_13689.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152489/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30675/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21565" ]
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https://nardus.mpn.gov.rs/handle/123456789/21567
123456789-21567.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30689/bdef:Content/download
no
Бипроизводи у моноидалним категоријама
Biproducts in monoidal categories
[ "Petrić, Zoran" ]
[ "Baralić, Đorđe", "Živaljević, Rade", "Lipkovski, Aleksandar", "Stojadinović, Tanja" ]
Zekić, Mladen
2023-09-06T11:00:41
[ "2023-09-06T11:00:41" ]
2022-04-08
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/4603/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9232", "https://fedorabg.bg.ac.rs/fedora/get/o:30689/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/121592329", "https://nardus.mpn.gov.rs/handle/123456789/21567" ]
[ "Централно мјесто у овој дисертацији заузимају резултати кохеренције за одређене типове затворених категорија. Резултати кохеренције у теорији категорија обично служе да обезбиједе једноставан поступак одлучивости за једнакост стрелица у некој категорији. Приступ кохеренцији кога ћемо се овдје придржавати подразумијева постојање вјерног функтора из слободно генерисане категорије A извјесног типа у категорију B која омогућава лакшу провјеру једнакости стрелица. Категорија B, која је истог типа као и A, обично представља формализацију одређеног графичког језика. Поред кохеренције, други најважнији појам којим се бавимо у дисертацији је бипроизвод. Појам бипроизвода у категорији обједињује појмове копроизвода и производа. Главни резултати у овој тези су теореме кохеренције за три типа затворених категорија са бипроизводима – симетричне моноидално затворене катеогорије са бипроизводима, компактно затворене категорије са бипроизводима и компактно затворене категорије са инволуцијом и бипроизводима. Осим тога, у тези је изложен нови доказ познате Кели-Меклејнове теореме кохеренције за симетричне моноидално затворене категорије. Методе које користимо у том доказу су у потпуности доказно-теоретске, а један од кључних елемената у њему је теорема о елиминацији сјечења. У свим наведеним резултатима кохеренције графички језик је заснован на категорији једнодимензионалних кобордизама. Коначно, у тези дајемо одређене критеријуме за постајање бипроизвода у моноидалним категоријама. Притом се ослањамо на недавно истраживање које карактерише извјесни тип моноидалних категорија са коначним бипроизводима користећи постојање десних дуала одређених истакнутих објеката. Наши критеријуми представљају уопштење овог резултата." ]
[ "Central place in this thesis occupy the coherence results for certain types of closed categories. Coherence results in category theory usually serve to provide a simple decision procedure for equality of arrows in some category. The approach to coherence that we follow here implies the existence of a faithfull functor from a freely generated category A of certain type to the category B in which an equality of arrows can be easily checked. Category B, which is of the same type as A, usually represents formalisation of some graphical language. Besides coherence, the second most important notion we consider in this thesis is the biproduct. The notion of biproduct in a category incorporates notions of coproduct and product. The main results in this thesis are coherence theorems for three types of closed categories with biproducts – symmetric monoidal closed categories with biproducts, compact closed categories with biproducts and dagger compact closed categories with dagger biproducts. Further, we present a new proof of the well-known Kelly-Mac Lane coherence theorem for symmetric monoidal closed categories. The methods we use in that proof are completely proof-theoretical, and one of the key elements in it is the cut-elimination theorem. In all the above coherence results, the graphical language is based on the category of one-dimensional cobordisms. Finaly, we give certain criteria for existence of biproducts in monoidal categories. In this regard, we rely on recent research that characterizes certain type of monoidal categories with finite biproducts by using the existence of right duals of some distinguished objects. Our criteria are a generalization of this result." ]
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Универзитет у Београду, Математички факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Београду
[ "кохеренција", "симетрична моноидално затворена категорија", "компактно затворена категорија", "категорија са инволуцијом", "еквиваленција доказа", "кобордизам" ]
[ "coherence", "symmetric monoidal closed category", "compact closed category", "dagger category", "equivalence of proofs", "cobordism" ]
[ "Бипроизводи у моноидалним категоријама" ]
[ "Biproducts in monoidal categories" ]
doctoralThesis
[ "BY" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151619/Disertacija_13693.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152511/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30689/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21567" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/21561
123456789-21561.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30523/bdef:Content/download
no
Semi-Fredholm operators on Hilbert C*-modules
Полу-Фредхолмови оператори на Хилбертовим C∗-модулима
[ "Đorđević, Dragan" ]
[ "Jocić, Danko", "Frank, Michael", "Manuilov, Vladimir M.", "Trapani, Camillo" ]
Ivković, Stefan G.
2023-09-06T11:00:21
[ "2023-09-06T11:00:21" ]
2022-03-07
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/4585/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9187", "https://fedorabg.bg.ac.rs/fedora/get/o:30523/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/121598729", "https://nardus.mpn.gov.rs/handle/123456789/21561" ]
[ "In the first part of the thesis, we establish the semi-Fredholm theory on Hilbert C∗- modules as a continuation of the Fredholm theory on Hilbert C∗-modules which was introduced by Mishchenko and Fomenko. Starting from their definition of C∗-Fredholm operator, we give definition of semi-C∗-Fredholm operator and prove that these operators correspond to one-sided invertible elements in the Calkin algebra. Also, we give definition of semi-C∗-Weyl operators and semi-C∗-B-Fredholm operators and obtain in this connection several results generalizing the counterparts from the classical semi-Fredholm theory on Hilbert spaces. Finally, we consider closed range operators on Hilbert C∗-modules and give necessary and sufficient conditions for a composition of two closed range C∗-operators to have closed image. The second part of the thesis is devoted to the generalized spectral theory of operators on Hilbert C∗-modules. We introduce generalized spectra in C∗-algebras of C∗-operators and give description of such spectra of shift operators, unitary, self-adjoint and normal operators on the standard Hilbert C∗- module. Then we proceed further by studying generalized Fredholm spectra (in C∗-algebras) of operators on Hilbert C∗-modules induced by various subclasses of semi-C∗-Fredholm operators. In this setting we obtain generalizations of some of the results from the classical spectral semi-Fredholm theory such as the results by Zemanek regarding the relationship between the spectra of an operator and the spectra of its compressions. Also, we study 2×2 upper triangular operator matrices acting on the direct sum of two standard Hilbert C∗-modules and describe the relationship between semi-C∗-Fredholmness of these matrices and of their diagonal entries." ]
[ "У првом делу тезе успостављамо полу-Фредхолмову теориjу на Хилбертовим C∗- модулима као наставак Фредхолмове теориjе на Хилбертовим C∗-модулима коjу су увели Мишченко и Фоменко. Полазећи од њихове дефинициjе C∗-Фредхолмових оператора, даjе- мо дефинициjу полу-C∗-Фредхолмовог оператора и доказуjемо да ти оператори одговараjу jеднострано инвертибилним елементима у Калкиновоj алгебри. Такође, даjемо дефиници- jу полу-C∗-Ваjлових оператора и полу-C∗-Б-Фредхолмових оператора и добиjамо с тим у вези више резултата коjи генерализуjу пандане из класичне полу-Фредхолмове теориjе на Хилбертовим просторима. На краjу, разматрамо операторе са затвореном сликом на Хилбертовим C∗-модулима и даjемо потребне и довољне услове да композициjа два C∗- оператора са затвореном сликом има затворену слику. Други део тезе посвећен jе генера- лизованоj спектралноj теориjи оператора на Хилбертовим C∗-модулима. За C∗-операторе дефинишемо генерализоване спектре у C∗-алгебри и даjемо опис таквих спектара у кон- кретном случаjу оператора помака, унитарних, самоадjонгованих и нормалних оператора на стандардном Хилбертовом C∗-модулу. Затим настављамо даље проучаваjући генера- лизоване Фредхолмове спектре (у C∗-алгебрама) оператора на Хилбертовим C∗-модулима индукованим различитим подкласама полу-C∗-Фредхолмових оператора. У овом контек- сту добиjамо уопштење неких резултата из класичне спектралне полу-Фредхолмове теори- jе, као што су Земанекови резултати у вези релациjа између спектара оператора и спектара њихових компресиjа. Такође, проучавамо 2 × 2 горње триjангуларне операторске матрице коjе делуjу на директноj суми два стандардна Хилбертова C∗-модула и описуjемо однос између полу-C∗-Фредхолмности ових матрица и њихових диjагоналних елемената." ]
application/pdf
sr
Универзитет у Београду, Математички факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Hilbert C∗-module", "semi-C∗-Fredholm operator", "semi-C∗-Weyl operator", "semi-C∗- B-Fredholm operator", "essential spectrum", "Weyl spectrum", "perturbation of spectra", "compression" ]
[ "Хилбертов C∗-модул", "полу-C∗-Фредхолмов оператор", "полу-C∗-Ваjлов опе- ратор", "полу-C∗-Б-Фредхолмов оператор", "есенциjални спектар", "Ваjлов спектар", "пертурба- циjе спектра", "компресиjе" ]
[ "Semi-Fredholm operators on Hilbert C*-modules" ]
[ "Полу-Фредхолмови оператори на Хилбертовим C∗-модулима" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151601/Disertacija_13648.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152512/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30523/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21561" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/21599
123456789-21599.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30527/bdef:Content/download
no
Едукациона визуелизација физичких феномена у парку науке и школском простору
Educational visualization of physical phenomena in the science park and school space
[ "Žekić, Andrijana" ]
[ "Popović Božić, Mirjana", "Sliško, Josip", "Dojčilović, Jablan", "Mitrović, Mićo М." ]
Marković Topalović, Tatjana
2023-09-06T11:04:33
[ "2023-09-06T11:04:33" ]
2022-06-03
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/4515/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9189", "https://fedorabg.bg.ac.rs/fedora/get/o:30527/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/121800457", "https://nardus.mpn.gov.rs/handle/123456789/21599" ]
[ "Tоком последњих деценија, значајан број физичара, астронома, географа, педагога, филозофа и архитеката истакли су потребу да се настава и учење физике и других природних наука одвијају у ширем простору, од учионице и лабораторије. Један сегмент овог рада указује на потребу да студенти добију прилику да понове искуства и резоновања научника, која су водила како до правилних, тако и она, која су водила до погрешних решења. У тези је истакнуто да су наставнику потребни ходник, двориште, кров, фасада, тераса да би се уградили уређаји и елементи који омогућују пресликавање, демонстрацију и проучавање физичких појава. Теза даје смернице и решења професорима и студентима како могу да реализују поменуте ситуације коришћењем ширег простора од учионице и лабораторије за физику. У истраживањима везаним за тему докторске дисертације проучаван је скуп конкретних спознајних инсталација погодних за ширење физичке лабораторије у комплекснији школски простор. Парк науке у Шапцу представља простор у којем је аутор тезе заједно са стручним тимом предложио, изградио, осмислио инсталације које су база едукационе визуелизације. Један сегмент тезе се бави усавршавањем оних учила која су раније већ предложена у литератури. Описан је и пут изградње инсталација и њиховог постављања у парку науке у Шапцу. Приказана је корисност Торичелијеве фонтане (која је изграђена у Шапцу) у учењу и примени у физици и математици и могућности примене квадратне функције и корена квадратне једначине. Њена употребљивост се заснива на визуелизацији математичких могућности облика индивидуалних водених млазева и групе млазева из суда напуњеног водом са бочним отворима. Рад сугерише да би наставници и аутори уџбеника требало да користе фонтану да би показали везу између физике и математике и да искористе ову везу у интегрисаном учењу две наведене науке. Један део рада је посвећен и грешкама у разматрању Торичелијеве фонтане у уџбеницима физике. Поред Торичелијеве фонтане анализиран је и Паралелни Глобус (Дан Ноћ и Година Глобус - ДИНГ). Овај Глобус је такође као саставни део докторског рада, осмишљен и исталиран у парку науке у Шапцу. ДИНГ је идеалан објекат за едукациону визуeлизацију знања о облику Земље, Земљиној ротацији око Сунца, дужини годишњих солстиција, еквиноција, локалног меридијана, дистрибуцију Сунчевог зрачења на Земљи, утицају овог зрачења на климу Земље, и како то зрачење користити ефикасно. ДИНГ је вишеструко користан за предавање физике, геофизике, астрономије и у развијању искуствено проблемског учења у подстицајној околини за ученика и јавност. У оквиру докторског рада изграђен је још један значајан број инсталација које едукационом визуелизацијом, пружају ученицима спознају о истраживачком путу научника и правилном резоновању кроз критичко мишљење. Са развојем информационо-комуникационих технологија едукациона визуелизација је постала посебна област научних истраживања са више нових праваца изучавања и развоја. У том контексту, теза истиче и анализира веома корисно повезивање визуелизације у реалном и виртуелном простору, а све у сврху наставе и учења. Такође, у раду и у складу са савременим тренутком описана је имплементација паметних телефона у посматрањима и мерењима како у физичкој лабораторији тако и у широј околини. У тези је такође урађено истраживање мисконцепције ученичких знања и промена њихових научних знања и ставова приликом рада у учионици на отвореном. Анализиран је едукативни утицај визуелно богате околине на наставу, успех, учење и популаризацију науке. На крају, представљена је тренутна позиција физике у образовању, стратегија развоја паркова науке и школских лабораторија на отвореном, као и мерљив утицај које могу направити у образовним програмима са циљем повећања интересовања ученика за бављење физиком и природним наукама." ]
[ "During last decades, considerable number of physicists, astronomers, geographers, pedagogues, psiholophers and architects have stressed the need that the physics and science teaching should be carried out in a broader space than the usual classrooms and labaratories. One segment of this work indicates the neceessity of providing students the opportunity to recreate experience and reasoning of scientists which led them to both, correct and incorrect solutions. In a thesis it is pointed out that a teacher needs a hall, a school yard, a roof, a facade, a terrace to install devices and elements for enabling mapping, demonstrations and studying physical phenomena. This thesis gives guidelines and keys to professors and students to realize mentioned situations by using broader space than a usual classroom and labratory for physics. In research related to the PhD reserach a group of concrete/authentic cognitive installations convinient for extending physics labaratory into more complex school space. Šabac Science Park is an example of space where the thesis author, with the expert team, suggested conteptualised installations based on educational visualization. One segment of thesis is devoted to advancing of teaching aids which were recommended earlier in the literature. The endeavour of the installations construction and its assembling in Šabac Science Park was described. The usefullness of Torriceli’s fountain in teaching applicability in physics of mathematical properties of the quadratic function and of the roots of the quadratic equation is demonstrated. The usefulness is based on the visualization of mathematical properties of the forms of individual water jets and of the sets of jets from the water tank with holes. Physics teachers and textbooks writers should use this fountain to show the interplay of physics and mathematics and to exploit this interplay in integrating physics and mathematics teaching and learning. Besides Torichelli`s fountain The Parallel Globe (Day Night Year Globe - DING) was built. Having the same orientiation in space as the Earth, DING shows in real time the pattern of illumination of the Earth’s surface and its diumal and seasonal variations. It is an ideal object for visualization of knowledge and rise of knowledge about the form of the Earth, Erath’s rotation around the Sun, the lenght of seasons solstices, equinoxes, the longitude problem, the distribution of Sun’s radiation over the Earth, the impact of these radiation on Earth’s climate, and how to use it efficiently. DING is simultaneously useful for teaching physics, geophysics, astronomy usage of solar energy and for experiencing inquiry learning environment by students and public. As a part of the PhD research, more than twenty installations were constructed. The installations provide to students the insight on research route of scientists and their correct reasoning through analytic thinking. Following the progress of communication technology, educational visusalisation has become a special field of scientific research branching into new ways of studies and development. Furthermore this work stresses and analyses very beneficial correlation of visualisation in real and virtual space aiming at efficient teaching and learning corresponding to actual trends to implement smartphones in observation and measuring in the physics laboratory as well as in the open space. The thesis also comprises the research of misconceptions in students’ knowledge and the change of their science knowledge and attitudes in classes in outdoors classrooms. Educational influence of visually enriched environment on teaching and learning progress, and popularisation of science has been analysed. Finally, current status of physics in educational system was presented. Strategy of developing science parks and outdoors school labaratories, and measurable impact they may have in curriculum aimed at motivating students to get more interested in styding physics and science in general, are present, as well." ]
application/pdf
sr
Универзитет у Београду, Физички факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "дукациона визуелизација на отвореном", "Торичелијева фонтана", "Глобус", "мерење ученичких знања", "имплементација паметних телефона у наставу" ]
[ "Education visualization in oudoors", "Torichelli’s fountain", "Parallel Globe", "evaluating students’ knowledge", "smartphone implementation in teaching process" ]
[ "Едукациона визуелизација физичких феномена у парку науке и школском простору" ]
[ "Educational visualization of physical phenomena in the science park and school space" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151715/Disertacija_13650.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152517/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30527/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21599" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21559
123456789-21559.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30509/bdef:Content/download
no
Гребнерове базе за коначно генерисане идеале над неким класама ненетериних прстена
Gröbner bases for finitely generated ideals over some classes of non-Noetherian rings
[ "Petrović, Zoran" ]
[ "Lipkovski, Aleksandar", "Pucanović, Zoran", "Radovanović, Marko" ]
Roslavcev, Maja
2023-09-06T11:00:12
[ "2023-09-06T11:00:12" ]
2021-12-17
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/4513/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9183", "https://fedorabg.bg.ac.rs/fedora/get/o:30509/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/121590537", "https://nardus.mpn.gov.rs/handle/123456789/21559" ]
[ "У овој тези бавимо се испитивањем постојања Гребнерових база за коначно ге- нерисане идеале у прстенима полинома над неким класама прстена који нису Нетерини. Теорија Гребнерових база је врло развијена и позната за случај прстена полинома над пољима или над Нетериним прстенима. Случај када је базни прстен ненетерин је мање заступљен. У том смислу, прстени којима ћемо се овде бавити су валуациони прстени Крулове димензије 0, валуациони домени Крулове димензије 1, као и генерализација ових последњих, Приферови домени Крулове димензије 1. Такође су предмет изучава- ња фон Нојман регуларни комутативни прстени као и (p − 1)-нил-чисти комутативни прстени. Добијене закључке можемо применити и на Безуове и Булове прстене, као поткласе Приферових и фон Нојман регуларних прстена, редом. Теза се већински фо- кусира на прстене полинома са једном неодређеном." ]
[ "n this thesis we deal with the existence of Gröbner bases for finitely generated ide- als in rings of polynomials over some classes of rings which are not Noetherian. The theory of Gröbner bases is highly developed when we observe the ring of polynomials over a field or over a Noetherian ring. The case when the base ring is non-Noetherian is less examined. In that sense, the rings which will be of interest here are valuation rings of Krull dimension zero, valuation domains of Krull dimension one, also the generalization of the last: Prüfer domains of Krull dimension one. Von Neumann regular commutative rings and (p − 1)-nil-clean commutative rings will also be a matter of discussion. The conclusions of the thesis can be applied to Bezout and Boolean rings, as these form the subclasses of Prüfer and von Neumann regular rings, respectively. The thesis is mostly focused on rings of polynomials with one indeterminate." ]
application/pdf
sr
Универзитет у Београду, Математички факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "ребнерова база", "валуациони домен", "валуациони прстен", "Приферов до- мен", "фон Нојман регуларни комутативни прстен", "(p − 1)-нил-чисти комутативни прстен" ]
[ "Gröbner basis", "valuation domain", "valuation ring", "Prüfer domain", "von Neumann regular commutative ring", "(p − 1)-nil-clean commutative ring" ]
[ "Гребнерове базе за коначно генерисане идеале над неким класама ненетериних прстена" ]
[ "Gröbner bases for finitely generated ideals over some classes of non-Noetherian rings" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151595/Disertacija_13644.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152518/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30509/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21559" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/21558
123456789-21558.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30500/bdef:Content/download
no
Prediction of alphabets of local protein structures using data mining methods: doctoral dissertation
Predviđanje alfabeta lokalne strukture proteina primenom metoda istraživanja podataka
[ "Mitić, Nenad" ]
[ "Malkov, Saša", "Kovačević, Jovana", "de Brevern, Alexandre" ]
Maljković, Mirjana M.
2023-09-06T11:00:08
[ "2023-09-06T11:00:08" ]
2019-10-15
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/4499/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9178", "https://fedorabg.bg.ac.rs/fedora/get/o:30500/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/121633289", "https://nardus.mpn.gov.rs/handle/123456789/21558" ]
[ "Proteins are linear biological polymers composed of amino acids whose structure and function are determined by the number and order of amino acids. The structure of the protein has three levels: primary, secondary and ter- tiary (three-dimensional, 3D) structure. Since the experimental determination of protein 3D structure is expensive and time-consuming, it is important to develop predictors of protein 3D structure properties from the amino acid sequence (pri- mary structure), such as 3D structure of the protein backbone. The 3D structure of the backbone can be described using prototypes of local protein structure, i.e. prototypes of protein fragments with a length of few amino acids. A set of local structure prototypes determines the library of local protein structures, also called the structural alphabet. A structural alphabet is defined as a set of N proto- types of L amino acid length. The subject of this dissertation is the development of models for the prediction of structural alphabet prototypes for a given amino acid sequence using different data mining approaches. As one of the most known, structural alphabet Protein Blocks (PBs) was used in one part of the doctorial re- search. Structural alphabet PBs consists of 16 prototypes that are defined using fragments of 5 consecutive amino acids. The amino acid sequence is combined with the structural properties of a protein that can be determined based on amino acid sequence (occurrence of repeats in the amino acid sequence) and results of predictors of protein structural properties (backbone angles, secondary structures, occurrence of disordered regions, accessible surface area of amino acids) as an input to the prediction model of structural alphabet prototypes. Besides the de- velopment of models for prediction of prototypes of existing structural alphabet, the analysis of the capability of developing new structural alphabets is researched by applying the TwoStep clustering algorithm and construction of models for the prediction of prototypes of new structural alphabets. Several structural alpha- bets, which differ in the length of prototypes and the number of prototypes, have been constructed and analyzed. Fragments of the large number of proteins, whose structure is experimentally determined, were used to construct the new structural alphabets." ]
[ "Proteini su linearni biološki polimeri sastavljeni od aminokiselina čiji broj i redosled određuju strukturu i funkciju proteina. Struktura proteina je defin- isana sa tri nivoa: primarnom, sekundarnom i tercijarnom (trodimenzionalnom, 3D) strukturom. Pošto je eksperimentalno određivanje 3D strukture proteina skupo i vremenski zahtevno, postoji potreba za razvojem programa koji na osnovu aminokiselinske sekvence (primarne strukture) predviđaju osobine 3D strukture, kao što je 3D struktura glavnog lanca proteina (eng. backbone). 3D struktura glavnog lanca proteina može da se opiše korišćenjem prototipova lokalne strukture proteina, tj. delova proteina od nekoliko uzastopnih aminokiselina. Skup defin- isanih prototipova lokalne strukture čini biblioteku lokalnih struktura proteina, koja se još naziva i strukturni alfabet (eng. structural alphabet). Svaki strukturni alfabet je definisan kao skup od N prototipova dužine L aminokiselina. Pred- met ove disertacije je pravljenje modela za predviđanje prototipova strukturnog alfabeta za zadatu aminokiselinsku sekvencu primenom različitih algoritama is- traživanja podataka. Kao jedan od najpoznatijih, strukturni alfabet Protenski blokovi (eng. Protein Blocks) je korišćen u jednom delu istraživanja u okviru dis- ertacije. Strukturni alfabet Proteinski blokovi se sastoji od 16 prototipova koji su napravljeni na osnovu delova proteina od 5 uzastopnih aminokiselina. Kao ulaz u model za predviđanje prototipova strukturnog alfabeta koriste se strukturne osobine proteina koje mogu da se odrede na osnovu aminokiselinske sekvence (lokacija ponavljajuće niske u aminokiselinskoj sekvenci) i rezultati predviđanja nekih strukturnih osobina proteina (uglovi glavnog lanca, sekundarne strukture, pojavljivanje neuređenih regiona, pristupačna površina). Pored razvoja modela za predviđanje prototipova postojećeg strukturnog alfabeta, u radu je izvršena i analiza mogućnosti razvoja novih strukturnih alfabeta primenom algoritma klas- terovanja TwoStep i pravljenje modela za predviđanje prototipova novih struk- turnih alfabeta. Radi analize, napravljeno je više strukturnih alfabeta sa različitim brojem prototipova i različite dužine prototipova. Za istraživanje novih strukturni alfabeta korišćeni su delovi velikog broja proteina čija je struktura eksperimen- talno određena" ]
application/pdf
sr
Универзитет у Београду, Математички факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "data mining", "structural alphabet", "prediction model", "Protein Blocks" ]
[ "straživanje podataka", "strukturni alfabeti", "model za predviđanje", "Proteinski blokovi" ]
[ "Prediction of alphabets of local protein structures using data mining methods: doctoral dissertation" ]
[ "Predviđanje alfabeta lokalne strukture proteina primenom metoda istraživanja podataka" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151592/Disertacija_13640.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152519/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30500/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21558" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
[ "" ]
[ "" ]
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[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21596
123456789-21596.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:30559/bdef:Content/download
yes
Evaluacija mehaničkih kapaciteta mišića nogu primenom linearne relacije sila-brzina
Evaluation of leg muscles’ mechanical capacities using a linear force-velocity relationship
[ "Nešić, Goran" ]
[ "Mirkov, Dragan", "Nedeljković, Aleksandar", "Knežević, Olivera", "Milanović, Slađan" ]
Grbić, Vladimir
2023-09-06T11:04:07
[ "2023-09-06T11:04:07" ]
2022-10-25
[ "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/4484/Referat.pdf", "https://eteze.bg.ac.rs/application/showtheses?thesesId=9195", "https://fedorabg.bg.ac.rs/fedora/get/o:30559/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/121521673", "https://nardus.mpn.gov.rs/handle/123456789/21596" ]
[ "Standardna mišićna relacija sila-brzina (F-V) može se primenjivati u testiranjima mehaničkih osobina mišića. Generalizacija parametara F-V relacije modela dva opterećenja sa jedne mišićne grupe na druge i primena ovog modela u izokinetičkim uslovima nije dovoljno istražena. Ciljevi su realizovani kroz dva dela istraživanja. U prvom su postavljeni ciljevi: Da se utvrdi linearnost F-V relacije, konkurentna validnost parametara modela dva opterećenja i mogućnost generalizacije između istih parametara modela dva opterećenja pri skokovima sa počučnjem, na bicikl ergometru i pri opružanju potkolenice u izometrijskim uslovima. U drugom delu istraživanja cilj je bio da se utvrdi konkurentna validnost parametara modela dve brzine kod opružanja potkolenice u izokinetičkim uslovima. Rezultati prvog dela istraživanja pokazali su da su parametri modela dva opterećenja bili veći od direktno izmerenih varijabli za sve testove. Korelacija između pomenutih parametara je bila visoka, osim pri parametru sile na bicikl ergometru. Rezultati su pokazali da je korelacija između istih parametara novog i standardnog modela pri različitim testovima za mišiće nogu varirala od umerene do visoke. Rezultati drugog dela istraživanja pokazali su da je F-V relacija gotovo linearna. Dobijena je gotovo identična F-V relacija primenom modela dve brzine, pri samo dve standardne ugaone brzine - 60 i 180 °/s. Dobijeni rezultati govore u prilog upotrebi modela dva opterećenja koji je daleko jednostavniji, a daje jednako kvalitetne informacije kao klasičan regresioni model približno linearne F-V relacije. Pokazano je da je mogućnost generalizacije mišićne snage nešto veća, nego generalizacija mišićne sile. Ovaj naučni doprinos otvara mogućnost pojednostavljenja testiranja mehaničkih kapaciteta mišića." ]
[ "he standard muscle force-velocity (F-V) relationship can be applied in testing the mechanical properties of muscles. The generalization of the parameters of the F-V relationship of the two-load model from one muscle group to another and the application of this model under isokinetic conditions have not been sufficiently investigated. The objectives have been achieved by two parts of the study. Aims within first were: To determine the linearity of the F-V relationship, the concurrent validity of the two-load parameters and the possibility of generalization between the same parameters of the two-load model during testing in squat jumps, on the cycle ergometer and for lower leg extension under isometric conditions. In second part of the study, the aim was to determine the concurrent validity of two-velocity model parameters in lower leg extension under isokinetic conditions. The results of the first part of the study showed that in all tests the parameters of the two- load model were higher than the directly measured variables. The correlation between the above parameters was high, except for the force parameter on the cycling ergometer. The results showed that the correlation coefficients between the same parameters of the new and the standard F-V model varied from moderate to high in different tests for the leg muscles. The results of the second part of the study showed that the F-V relationship was approximately linear. An almost identical F-V relationship was obtained by applying the two- velocity model, at only two standard angular velocities - 60 and 180 °/s. The results obtained speak in favor of applying the two-load model, which is far simpler, and provides the same quality of information as the classical regression model of approximately linear F-V relationship. It has been shown that the possibility of generalizing the muscle power is slightly higher than the generalization of the muscle force. This scientific contribution opens the possibility to simplify the testing of mechanical muscle capacities." ]
application/pdf
sr
Универзитет у Београду, Факултет спорта и физичког васпитања
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Београду
[ "relacija sila-brzina", "model dva opterećenja", "kinematika", "Vingate", "platforma sile" ]
[ "force-velocity relationship", "two-load model", "kinematics", "Vingate", "force plate" ]
[ "Evaluacija mehaničkih kapaciteta mišića nogu primenom linearne relacije sila-brzina" ]
[ "Evaluation of leg muscles’ mechanical capacities using a linear force-velocity relationship" ]
doctoralThesis
[ "BY" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151706/Disertacija_13656.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152520/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:30559/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21596" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/20510
123456789-20510.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:25866/bdef:Content/download
no
Proučavanje sinergetskog efekta kopirolize lignita i polietilena visoke gustine u otvorenom sistemu - petrografski i geohemijski pristup
Study of synergetic effect of co-pyrolysis of lignite and high density polyethylene in an open system – petrographic and geochemical approach
[ "Stojanović, Ksenija" ]
[ "Jovančićević, Branimir", "Životić, Dragana", "Obradović, Marko" ]
Kojić, Ivan
2022-06-04T07:10:48
[ "2022-06-04T07:10:48" ]
2022-04-04
[ "https://eteze.bg.ac.rs/application/showtheses?thesesId=8642", "https://uvidok.rcub.bg.ac.rs/bitstream/handle/123456789/4702/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:25866/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/67233033", "https://nardus.mpn.gov.rs/handle/123456789/20510" ]
[ "U doktorskoj disertaciji je urađeno detaljno ispitivanje pirolize uzoraka preekstrahovanih litotipova lignita, polietilena visoke gustine (eng. High Density Polyethylene, HDPE) i kopirolize njihove smeše u otvorenom sistemu, kao moguće metode za racinalnu primenu niskokvalietnog lignita uz istovremenu upotrebu plastičnih kesa..." ]
[ "In the doctoral dissertation, a detailed examination of pyrolysis of bitumen-free lignite lithotype samples, high density polyethylene (HDPE) and co-pyrolysis of their mixture in an open system was performed, to assess the possibility for rational utilization of low quality lignite with the simultaneous usage of plastic bags..." ]
application/pdf
sr
Универзитет у Београду, Хемијски факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "barski, ksilitni i zemljasti litotip lignita", "polietilen visoke gustine", "piroliza u otvorenom sistemu", "tečni, čvrsti i gasoviti proizvodi pirolize", "sinergetski efekat" ]
[ "matrix", "high density polyethylene", "open system pyrolysis", "liquid, solid and gaseous pyrolysis products", "synergetic effect", "xylite-rich and mineral-rich lignite lithotype" ]
[ "Proučavanje sinergetskog efekta kopirolize lignita i polietilena visoke gustine u otvorenom sistemu - petrografski i geohemijski pristup" ]
[ "Study of synergetic effect of co-pyrolysis of lignite and high density polyethylene in an open system – petrographic and geochemical approach" ]
doctoralThesis
[ "BY-NC-ND" ]
Стојановић, Ксенија; Обрадовић, Марко; Животић, Драгана; Јованчићевић, Бранимир; Којић, Иван; Проучавање синергетског ефекта копиролизе лигнита и полиетилена високе густине у отвореном систему - петрографски и геохемијски приступ; Проучавање синергетског ефекта копиролизе лигнита и полиетилена високе густине у отвореном систему - петрографски и геохемијски приступ;
[ "http://nardus.mpn.gov.rs/bitstream/id/144965/Disertacija_12341.pdf", "http://nardus.mpn.gov.rs/bitstream/id/144966/Izvestaj_Komisije_12341.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:25866/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_20510" ]
[ "" ]
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[ "" ]
[ "" ]
[ "" ]
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[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/18690
123456789-18690.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1388/bdef:Content/download
no
Aorist u francuskom i njegovi značenjski ekvivalenti u srpskom jeziku
Aorist in French and its semantic equivalents in Serbian
[ "Ašić, Tijana" ]
[ "Stanojević, Veran", "Fajgelj, Andrej", "Gudurić, Snežana", "Popovič, Ljudmila" ]
Simović, Marija Đ.
2021-10-28T09:43:01
[ "2021-10-28T09:43:01" ]
2021-06-15
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8302", "https://fedorakg.kg.ac.rs/fedora/get/o:1388/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/18690" ]
[ "Predmet istraživanja ove doktorske disertacije jeste semantička kontrastivna analiza aorista i njegovih značenjskih ekvivalenata u srpskom jeziku. Njen cilj je da se opišu, analiziraju i kontrastiraju semantike aorista u francuskom i srpskom jeziku, ali i da se analizom korpusa utvrde svi glagolski oblici u srpskom jeziku koji sadrže semantičku prirodu francuskog aorista, zbog čega se i javljaju kao njegovi prevodni ekvivalenti. Pritom, zadatak je bio rasvetliti sisteme glagolskih vremena ova dva jezika u svetlu Teorije optimaliteta, budući da su njihova analiza i opis od presudne važnosti za razjašnjenje izbora prevodnog ekvivalenta. Zapravo, glavna razlika sistema glagolskih vremena u srpskom i francuskom jeziku jeste različito izražavanje vidske informacije, jer je u francuskom kategorija aspekta enkodirana putem opozicije glagolskih vremena aorist/imperfekat, dok je u srpskom (i drugim slovenskim jezicima), ona morfološki izražena pomoću opozicije svršenih i nesvršenih glagola. U radu smo koristili metodu kontrastivne analize primera iz korpusa sačinjenog od šest francuskih romana i njihovih srpskih prevodnih verzija, kao i dva srpska romana i njihovih francuskih prevoda. Na osnovu analize korpusa, utvrđeno je prisustvo perfektivnog perfekta, aorista, pripovedačkog prezenta, ali i imperfektivnog perfekta u srpskim prevodima izabranih francuskih romana. Posebno su značajni slučajevi upotrebe francuskog aorista interne fokalizacije, kao i srpskog inkoativnog aorista pri čemu je od posebne važnosti bilo ispitati kako se inkoativnost izražava u srpskom jeziku, a kako u francuskom jeziku, i da li postoji odstupanje u značenjskoj nijansi." ]
[ "The subject of research of this doctoral dissertation is the semantics contrastive linguistics analysis of aorist and its semantic equivalents in the Serbian language. The goal is to describe, analyze and contrast the semantics of aorists in French and Serbian, but also interpreting the corpus to find all verb forms in Serbian that contain the semantic feature of the French aorist, thus, the reason why they occur as its translation equivalents. In doing so, the task was to depict the systems of verb tenses of these two languages taking into account the Optimality Theory since their analysis and description are crucial for clarifying the choice of the translation equivalents. The main distinction between the system of verb tenses in Serbian and French is the different expression of verbal aspect since, in French, the category of form is encoded through the opposition of verb tenses aorist/imperfect whereas in Serbian, (as well as other Slavic languages) it is morphologically expressed by the opposition perfective and imperfective verbs. In the thesis, we used the method of analysis of examples from a corpus composed of six French novels and their versions translated in Serbian, as well as two Serbian novels with their French translations. The presence of the perfective perfect, aorist, narrative present, but also the imperfective perfect in Serbian translations of selected French novels were found by analyzing the corpus. The instances of the use of the French aorist of internal focalization, along with the Serbian inchoative aorist, are particularly significant, whereby the research on how is inchoation expressed in both Serbian and French was especially important, as well as to inspect whether there are any discrepancies in meaning." ]
application/pdf
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Универзитет у Крагујевцу, Филолошко-уметнички факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/178014/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nd/4.0/" ]
Универзитет у Крагујевцу
[ "semantička analiza", "značenjski ekvivalenti", "aspekat", "srpski jezik", "francuski jezik", "aorist", "glagolska vremena" ]
[ "semantic analysis", "semantic equivalence", "aspect", "Serbian language", "French language", "aorist", "verb tenses" ]
[ "Aorist u francuskom i njegovi značenjski ekvivalenti u srpskom jeziku" ]
[ "Aorist in French and its semantic equivalents in Serbian" ]
doctoralThesis
[ "BY-ND" ]
Aшић, Тијана; Гудурић, Снежана; Фајгељ, Aндреј; Попович, Људмила; Станојевић, Веран; Симовић, Марија Ђ.; Aорист у француском и његови значењски еквиваленти у српском језику; Aорист у француском и његови значењски еквиваленти у српском језику;
[ "https://nardus.mpn.gov.rs/bitstream/id/77188/Doctoral_thesis_11565.pdf", "https://nardus.mpn.gov.rs/bitstream/id/77189/Marija_Simovic_FILUM.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1388/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_18690" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/20645
123456789-20645.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:26281/bdef:Content/download
no
Bihevioralna modernost u organizaciji pećinskih staništa iz srednjeg i gornjeg paleolita na centralnom Balkanu
Behavioral modernity in the organization of cave settlements from the middle and upper paleolithic in the Central Balkans
[ "Mihailović, Dušan" ]
[ "Porčić, Marko", "Antonović, Dragana" ]
Plavšić, Senka
2022-09-06T14:11:03
[ "2022-09-06T14:11:03" ]
2022-04-07
[ "https://eteze.bg.ac.rs/application/showtheses?thesesId=8711", "https://fedorabg.bg.ac.rs/fedora/get/o:26281/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/65865737", "https://nardus.mpn.gov.rs/handle/123456789/20645" ]
[ "Predmet istraživanja ove disertacije je organizacija životnog prostora u pećinskim staništima u srednjem i gornjem paleolitu centralnog Balkana. Iako se struktuisana organizacija staništa često smatra jednom od odlika bihevioralne modernosti koja se vezuje za anatomski modernog čoveka, novije studije dovele su tu pretpostavku u pitanje. Osnovni cilj ove disertacije bio je da se utvrdi da li se na pećinskim staništima srednjeg paleolita i gornjeg paleolita javljaju izdiferencirane zone aktivnosti, koji je nivo složenosti obrazaca u naseljavanju ovih staništa, kao i da se ispita da li se ti obrasci mogu vezati za pojavu modernog ponašanja. U ovoj disertaciji analizirani su podaci sa sedam srednjopaleolitskih i gornjopaleolitskih pećinskih staništa na centralnom Balkanu. Za svaki lokalitet koji je uključen u studiju najpre je procenjen stepen uticaja postdepozicionih faktora analizom orijentacije artefakata i/ili analizom sortiranja po veličini, nakon čega se pristupilo samoj prostornoj analizi distribucije artefakata koja je omogućila rekonstrukciju zona aktivnosti u staništima. Rezultati analiza pokazali su da se na staništima srednjeg i gornjeg paleolita javlja više različitih zona aktivnosti, dok se struktuisana organizacija staništa javlja ne samo na nalazištima iz gornjeg paleolita, već i na lokalitetima iz srednjeg paleolita. Rezultati ove disertacije u kombinaciji sa etnoarheološkim studijama pokazali su da postoji velika varijabilnost u organizaciji staništa različitih lovačkosakupljačkih zajednica i da je ona pre posledica varijabilnosti u ponašanju nego bihevioralne modernosti." ]
[ "Main subject of this dissertation was settlement organization in caves in Central Balkans dated to Middle and Upper Paleolithic. Even though structural settlement organization is usually perceived as one of the characteristics of behavioral modernity which is identified with anatomically modern humans, new studies are in contrast with that. Main goal of this dissertation was to determine if there are separate activity zones on Middle and Upper Paleolithic cave sites, what is the level of complexity of organizational patterns on these sites, and to examine if these patterns can be connected to the emergence of behavioral modernity. Data from seven Middle and Upper Paleolithic cave sites in Central Balkans has been analyzed in this dissertation. For each site the level of postdepositional disturbance is examined using artifact orientation analysis and/or site sorting analysis, after which the spatial analysis of artefacts is performed which enabled the reconstruction of activity zones on sites. Settlement horizons on these sites are separated into late Middle Paleolithic, early Upper Paleolithic and late Upper Paleolithic, for which results were then compared. On all the sites, postdepositional disturbance was first examined using artifact orientation analysis and/or site sorting analysis, after which the spatial analysis of lithic artefacts was performed. Results of this dissertation showed that different activity zones are present on both Middle and Upper Paleolithic sites, while the sturtural organization of sites is present not only on sites from Upper Paleolithic, but from Middle Paleolothic as well. In combination with ethnoarchaeological studies, this dissertation showed that there is a great variability in the settlement organization of different hunter-gatherer communities and that it is a consequence of variability of behavior rather than behavioral modernity." ]
application/pdf
sr
Универзитет у Београду, Филозофски факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "organizacija staništa", "bihevioralna modernost", "zone aktivnosti", "centralni Balkan" ]
[ "settlement organization", "behavioral modernity", "activity zones", "Central Balkans" ]
[ "Bihevioralna modernost u organizaciji pećinskih staništa iz srednjeg i gornjeg paleolita na centralnom Balkanu" ]
[ "Behavioral modernity in the organization of cave settlements from the middle and upper paleolithic in the Central Balkans" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/145522/PlavsicReferat.pdf", "http://nardus.mpn.gov.rs/bitstream/id/145521/Disertacija_12419.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:26281/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_20645" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/21480
123456789-21480.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:29688/bdef:Content/download
no
Procena izloženosti hemijskim opasnostima u hrani animalnog porekla
Exposure assessment to chemical hazards in food of animal origin
[ "Tomašević, Igor" ]
[ "Đekić, Ilija", "Miočinović, Jelena", "Šmigić, Nada", "Puđa, Predrag" ]
Petrović, Jelena B.
2023-06-14T11:33:56
[ "2023-06-14T11:33:56" ]
2022-11-30
[ "https://eteze.bg.ac.rs/application/showtheses?thesesId=9127", "https://fedorabg.bg.ac.rs/fedora/get/o:29688/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/107972873", "https://nardus.mpn.gov.rs/handle/123456789/21480" ]
[ "Cilj ovog istraživanja bio je da se izvrši kvantitativna procena izloženosti stanovništva Srbije hemijskim opasnostima u hrani životinjskog porekla. Istraživanjem su obuhvaćeni: aflatoksin M 1 u mleku i proizvodima od mleka, histamin u svežoj, zamrznutoj i konzerviranoj ribi, toksični elementi (kadmijum, živa i arsen) u svežoj, zamrznutoj i konzerviranoj ribi i plodovima mora, esencijalni elementi (cink, bakar i gvožđe) u konzerviranoj ribi i plodovma mora i aditivi (nitriti, sulfiti i fosfati) u proizvodima od mesa. Ovaj cilj je ispunjen sprovođenjem istraživanja o potrošnji hrane životinjskog porekla na uzorku stanovništva u Srbiji i analizom sadržaja hemijskih opasnosti u proizvodima sa domaćeg tržišta. Dobijeni podaci su iskorišćeni kao ulazni elementi za Monte Karlo simulacionu metodu i na taj način je dobijena procena izloženosti navedenim hemijskim opasnostima u hrani životinjskog porekla. Istraživanja o navikama odraslog stanovništva Srbije u konzumiranju namirnica animalnog porekla su sprovedena u skladu sa preporukama koje je dala Evropska agencija za bezbednost hrane (engl. EFSA – European Food Safety Authority). Upitnik o konzumiranju mleka i proizvoda od mleka i upitnik o konzumiranju ribe, plodova mora i njihovih proizvoda su sprovedeni tokom 2018. godine na uzorku od 1.000 ispitanika, a upitnik o konzumiranju proizvoda od mesa tokom 2017. godine na uzorku od 900 ispitanika. Rezultati pokazuju da je potrošnja mleka u Srbiji u okviru prosečne potrošnje u evropskim zemljama, a potrošnja ribe neznatno manja od nekih evropskih zemalja, ali da se proizvodi od mesa u Srbiji konzumiraju u prekomernim količinama. Vrednosti koncentracija aflatoksina M 1 u sirovom mleku (385 uzoraka) i proizvodima od mleka (556 uzoraka) dobijene su iz analiza sprovedenih u periodu od četiri godine (2015 - 2018). Paralelno su analizirani uzorci hrane za životinje na prisustvo aflatoksina B 1 (747 uzoraka) u periodu od pet uzastopnih godina (2014 -2018). Rezultati ukazuju na to da nisu uvedene efikasne mere za kontrolu razvoja gljivica koje proizvode aflatoksine u hrani za životinje, što i dalje rezultira u povećanoj koncentraciji aflatoksina B 1 u hrani za životinje i, posledično, aflatoksina M 1 u sirovom mleku. Postignut je značajan napredak u smanjenju koncentracije aflatoksina M 1 u proizvodima od mleka u odnosu na prethodni period, za razliku od sirovog mleka, gde napredak postoji, ali je mnogo manji. Industrija mleka je odigrala ključnu ulogu u smanjenju nivoa izloženosti stanovništva aflatoksinu M 1 u proizvodima od mleka pooštravanjem kontrole ulazne sirovine i finalnih proizvoda. Monte Karlo simulacijom sa 100.000 iteracija dobijen je procenjeni dnevni unos aflatoksina M 1 u rasponu od 0,062–0,076 ng/kg tm/dan, u zavisnosti od metode prikupljanja podataka o ishrani i primenjenih scenarija. Dobijene vrednosti ukazuju na umerene rizike izloženosti u poređenju sa sličnim studijama koje su sprovedene širom sveta. Prikupljeni uzorci sveže, zamrznute i konzervirane ribe i plodova mora analizirani su tokom pet godina (2014 - 2018). Određivanje sadržaja histamina izvršeno je na 974 uzoraka ribe i proizvoda; kadmijuma na 1.909, žive na 1.911 i arsena na oko 1.891 uzorku ribe i morskih plodova i njihovih proizvoda, a određivanje sadržaja bakra, cinka i gvožđa na 454 uzorka ribe i morskih plodova u konzervi. Monte Karlo metodom procenjen je prosečni dnevni unos kroz konzumiranje ovih namirnica za: histamin (0,0274 mg/kg tm/dan), kadmijum (0,0347 mg/kg tm/dan), živu (0,2426 mg/kg tm/dan), arsen (0,5576 mg/kg tm/dan), bakar (1,2241 mg/kg tm/dan), cink (5,4634 mg/kg tm/dan) i gvožđe (9,2231 mg/kg tm/dan)..." ]
[ "he aim of this research was to perform a quantitative assessment of the exposure of the population of Serbia to chemical hazards in foods of animal origin. The study included: aflatoxin M1 in milk and dairy products; histamine, toxic (cadmium, mercury and arsenic) and essential elements (zinc, copper and iron) in fish and; additives (nitrites, sulphites and phosphates) in meat products. This goal was met by conducting surveys on food consumption in a sample of the local population and analyzing the content of chemical hazards in food products on the local market. The data obtained were used as input elements for the Monte Carlo simulation method, and thereby, estimates of the exposure to the stated chemical hazards in foods of animal origin were obtained. Research on the consumption habits of the adult Serbian population with regard to food of animal origin was conducted in accordance with the recommendations given by European Food Safety Authority (EFSA). A questionnaire on the consumption of milk and dairy products and a questionnaire on the consumption of fish, seafood and their products were administered in 2018 to a sample of 1,000 respondents, and the questionnaire on the consumption of meat products was administered in 2017 to a sample of 900 respondents. The results show that the consumption of milk in Serbia is within the average consumption in European countries, and the consumption of fish is slightly lower than in some European countries, but that meat products in Serbia are consumed in excessive quantities. The concentrations of aflatoxin M 1 in raw milk (385 samples) and dairy products (556 samples) were obtained from analyses conducted over four years (2015-2018). In parallel, animal feed samples were analyzed for the presence of aflatoxin B 1 (747 samples) over five consecutive years (2014-2018). The correlation between the measured concentrations of aflatoxin B 1 in animal feed and aflatoxin M 1 in raw milk and dairy products was monitored. The results indicate that no effective measures have been introduced to control the development of aflatoxin-producing fungi in animal feed, which is still resulting in high concentrations of aflatoxin M 1 in raw milk. Compared to the previous period, significant progress has been made in reducing the concentration of aflatoxin M 1 in dairy products, in contrast to raw milk, where some progress has been made, but to a much lesser extent. The dairy industry has played a key role in reducing the level of exposure of the population to aflatoxin M 1 in dairy products by tightening the control of input raw materials and final products. The Monte Carlo simulation with 100,000 iterations yielded an estimated daily intake of aflatoxin M 1 in the range of 0.062-0.076 ng/kg bw/day, depending on the method of collecting dietary data and the scenarios used. These amounts indicate moderate exposure risks compared to similar studies worldwide. Samples of fresh, frozen and canned fish and seafood were analyzed over five years (2014-2018). Determination of histamine content was performed on 974 fish samples; cadmium on 1,909, mercury on 1,911 and arsenic on 1,891 samples of fish and seafood and products, and determination of copper, zinc and iron content on 454 samples of canned fish and seafood. The Monte Carlo method estimated the average daily intake through the consumption of fish: histamine (0.0274 mg/kg bw/day), cadmium (0.0347 mg/kg bw/day), mercury (0.2426 mg/kg bw/day), arsenic (0.5576 mg/kg bw/day), copper (1.2241 mg/kg bw/day), zinc (5.4634 mg/kg bw/day) and iron (9.2231 mg/kg bw/day)..." ]
application/pdf
sr
Универзитет у Београду, Пољопривредни факултет
[ "" ]
[ "openAccess" ]
[ "" ]
Универзитет у Београду
[ "aflatoksin M1", "mleko i proizvodi od mleka", "histamin", "toksični i esencijalni elementi", "riba i morski plodovi", "aditivi", "proizvodi od mesa", "procenjeni dnevni unos", "procena izloženosti", "Monte Karlo analiza" ]
[ "aflatoxin M1", "toxic and essential elements", "Monte Carlo analysis", "fish and seafood", "additives", "meat products", "estimated daily intake", "exposure assessment", "milk and dairy products", "histamine" ]
[ "Procena izloženosti hemijskim opasnostima u hrani animalnog porekla" ]
[ "Exposure assessment to chemical hazards in food of animal origin" ]
doctoralThesis
[ "" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151210/Disertacija_13574.pdf", "http://nardus.mpn.gov.rs/bitstream/id/152786/Referat.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:29688/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21480" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21669
123456789-21669.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1609/bdef:Content/download
no
Povezanost koncentracije slobodne cirkulišuće lncRNA GAS5 sa patohistološkim, laboratorijskim i radiološkim karakteristikama karcinoma prostate
Association of free circulating lncRNA GAS5 concentration with pathohistological, laboratory and radiological characteristics of prostate cancer
[ "Cikota-Aleksić, Bojana" ]
[ "Stanković, Vesna", "Aleksić, Predrag", "Vojinović, Radiša" ]
Mišović, Miroslav
2023-09-06T12:19:08
[ "2023-09-06T12:19:08" ]
2022
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8650", "https://fedorakg.kg.ac.rs/fedora/get/o:1609/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21669" ]
[ "Uvod/Cilj. Karcinom prostate (KP) je drugi karcinom po učestalosti u muškoj populaciji. Iako je visoka incidenca oboljevanja od ove vrste karcinoma, u najvećem broju slučajeva prognoza bolesti je povoljna sa dugoročno zadovoljavajućim kvalitetom života bolesnika. Jedan od glavnih ciljeva u istraživanju KP je pronalaženje novih i efikasnijih biomarkera. Cilj rada je bio da se utvrde razlike u vrednostima lncRNA GAS5 u plazmi kod zdravih ispitanika i bolesnika sa KP, kao i između obolelih od KP sa različitim prognostičkim stadijumima, kao i korelacija njegove koncentracije u plazmi sa rezultatima MDCT stejdžinga, patohistološkog nalaza i PSA. Metod. U studiju je bilo uključeno 60 bolesnika sa KP i 30 zdravih osoba kao kontrolna grupa. Bolesnici sa KP su podeljeni u dve podgrupe (u svakoj po 30 bolesnika) na osnovu prognostičkih kriterijuma American Joint Committee on Cancer. Podaci o bolesnicima su prikupljeni i analizirani; GAS5 je kvantifikovan korišćenjem real-time PCR metode. Statistička analiza je izvršena pomoću programa IBM SPSS Statistics 26.0. Rezultati. Nivo ekspresije GAS5 bio je statistički značajno niži kod pacijenata sa KP u odnosu na kontrolnu grupu (p=0,009). Takođe, zaključeno je da razlika u nivou ekspresije GAS5 između pacijenata u prvoj podgrupi i kontrolnoj grupi nije pokazala statističku značajnost (p=0,066). Istovremeno, nađena je statistički značajna razlika u nivou ekspresije GAS5 između pacijenata u drugoj podgrupi i kontrolnoj grupi (p=0,007). Između pacijenata u prvoj i drugoj podgrupi dobijena je statistički neznačajna razlika u vrednostima nivoa ekspresije GAS5 (p=0,371). Zaključak. Sprovedeno istraživanje ukazuje na značaj lncRNAs u KP, kao i na povezanost niskih vrednosti nivoa ekspresije GAS5 sa lošom prognozom kod različitih tumora." ]
[ "Introduction/Aim. Prostate cancer (PCa) is the second most frequent cancer in the male population. Even though PCa incidence rates are high, in most cases the disease prognosis is favourable with an acceptable long-term quality of life. One of the main objectives in PCa research is identifying novel and more efficient biomarkers. This study’s goal was to determine the difference between lncRNA GAS5 plasma levels between healthy subjects and the PCa patients, and to correlate the plasma concentration with the results of MDCT staging, pathohistological findings and PSA levels. Methods. The study included 60 PCa patients and 30 healthy individuals in the control group. The PCa patients were divided in two subgroups (30 patients each) based on the American Joint Committee on Cancer prognostic criteria. Patient data were collected and analysed; GAS5 was quantified by using the real-time PCR methods. Statistical analysis was performed using the IMB SPSS Statistics 26.0 program. Results. The GAS5 expression levels were significantly lower in PCa patients compared to the control group (p=0.009). The difference in the expression levels of GAS5 between patients in the first subgroup and the control group are not significant (p=0.066). However, there is a significant difference between patients in the second subgroup and the control group. (p=0.007). Comparing the first and the second subgroup there is no significant difference in the expression levels of GAS5 (p=0.371). Conclusion. Conducted research provides strong evidence of the significance of lncRNAs in PCa, as well as the correlation of decreased expression of GAS5 and poor prognosis in various tumours." ]
application/pdf
sr
Универзитет у Крагујевцу, Факултет медицинских наука
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Крагујевцу
[ "k arcinom prostate", "biomarker", "dugi nekodirajući lanci RNA", "lncRNA", "GAS5", "PSA", "MDCT", "Gleason skor" ]
[ "prostate cancer", "biomarker", "long non-coding RNA", "lncRNA, GAS5, PSA, MDCT, Gleason score" ]
[ "Povezanost koncentracije slobodne cirkulišuće lncRNA GAS5 sa patohistološkim, laboratorijskim i radiološkim karakteristikama karcinoma prostate" ]
[ "Association of free circulating lncRNA GAS5 concentration with pathohistological, laboratory and radiological characteristics of prostate cancer" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151865/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1609/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21669" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21641
123456789-21641.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1640/bdef:Content/download
no
Razvoj i karakterizacija poroznih struktura od aluminijuma
Development and characterization of aluminum porous structures
[ "Živić, Fatima" ]
[ "Todorović, Petar", "Slavković, Vukašin", "Petković, Dušan" ]
Sharma, Varun
2023-09-06T12:18:20
[ "2023-09-06T12:18:20" ]
2022
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8681", "https://fedorakg.kg.ac.rs/fedora/get/o:1640/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21641" ]
[ "Metalne pene su dobar izbor za multidisciplinarnu primenu, jer ih njihove fizičke i mehaničke karakteristike čine posebno atraktivnim za automobilsku industriju. Ova studija ima za cilj da utvrdi pogodnost metalnih pena ispitivanjem njihovih mehaničkih i fizičkih svojstava. U ovom radu su projektovane i razvijene porozne aluminijumske strukture, a nakon toga je realizovana njihova karakterizacija. Jedan od glavnih ciljeva je odreĎivanje metodologije proizvodnje poroznih struktura sa poboljšanim elastičnim i plastičnim karakteristikama. Eksperimentalna istraţivanja i numeričke simulacije su realizovane da bi se utvrdio mehanizam deformacije, kao i izbora materijala za primenu pena na bazi aluminijuma. Prvi korak u razvoju metalne pene bio je korišćenje različitih proizvodnih tehnologija. Opisano je nekoliko glavnih proizvodnih tehnologija, uključujući livenje plastike korišćenjem prekursora polimera ili voska, ekspanziju zarobljenog gasa, LC N proces i ubrizgavanje rastopljenog gasa (mehurići vazduha). UtvrĎeno je da je metoda ubrizgavanja rastopljenog gasa efikasnija u proizvodnji homogenih veličina pora jer se parametri procesa mogu lako menjati. Iz tog razloga su uzorci pripremljeni ovom metodom. Ovom metodom su dobijeni uzorci metalne pene sa porama duţine oko 1 mm i gustine 0,6 g/cm3 . Ovi uzorci su ispitivani jednoosnim pritiskivanjem pri brzini pomeranja od 0,001 mm/s. Eksperimentalni rezultati daju vrednosti napona i deformacije u funkciji zatezanja i opterećenja, respektivno. Eksperimentalni rezultati pokazuju da do potpunog loma uzoraka dolazi pri opterećenju od 90 kN. Uzorci pripremljeni metodom uduvavanja gasa pokazali su: elastičnu zonu, zonu uniformnog ponašanja (pri oko 23 MPa) i zonu sabijanja pri oko 35 MPa. Tokom ispitivanja pritiskivanjem odredjen je napon tečenja koji iznosi 20 MPa. Zanimljivo je da su zona sabijanja i brzo povećanje napona počeli od oko 52% deformacije uzorka metalne pene. Razvijen je novi model za numeričku simulaciju zasnovan na Voronoi modelu i kodu (Voronoi Tessellated Model, VTM) za generisanje porozne strukture otvorenih pora. Razvijeni model je korišćen za proučavanje mehanizma deformacije. Ispitivanje jednoosnim pritiskivanjem je izvedeno sa opterećenjem od 20 N. Ispitivanja su izvedena na tri različita uzorka različite poroznosti (30%, 60% i 80%) radi proučavanja uticaja poroznosti. Model elastično-plastičnog materijala zasnovan na von Mises-ovom kriterijumu tečenja materijala sa idealnom plastičnošću (bez deformacionog ojačavanja) primenjen je za deformacije manje od 10%. Numeričkim simulacijama su dobijene vrednosti napona i deformacija koje pokazuju da uzorci sa većom poroznošću imaju značajno veću normalnu komponentu napona i širi opseg ravni maksimalnog napona. Naponi pri ispitivanju pritiskivanjem i zatezanjem rastu sa povećanjem poroznosti. Slično, strukturni ligamenti porozne strukture (zidovi pora) su pokazali komplikovanu raspodelu polja napona. Rezultati dobijeni numeričkim metodama su u skladu sa eksperimentalnim ispitivanjima. Da bi se steklo bolje razumevanje, potrebna su dodatna istraţivanja rezultata dobijenih numeričkim simulacijama stvarnog dinamičkog ponašanja u zoni elastičnosti, plastičnosti i u uslovima jednoosnog pritiskivanja za strukturu otvorenih pora kreiranu Voronoi modelom. Za modeliranje zatvorenih pora, korišćene su 3D slike aluminijumskih pena dobijene kompjuterskom tomografijom (CT skeniranje). 3D model je razvijen nakon obrade slika dobijenih sa CT skenera i dalje je primenjen za numeričku simulaciju. Mreţa konačnih elemenata je kreirana korišćenjem tetraedarskih elemenata. Jednačine elasto-plastičnog modela sa svojstvima izotropnih materijala su korišćene za nelinearnu statičku analizu. Numerička simulacija je realizovana u uslovima jednoosnog pritiskivanja. Tokom testa pritiskivanja, opterećenje je zadato na gornjoj strani uzorka u pravcu y-ose. Rezultati pokazuju da kompleksna raspodela polja napona utiče i na napone pri ispitivanju zatezanjem i pritiskivanjem. Na deformaciju takoĎe utiče napon smicanja. Zona sa većim prečnikom pora je podloţnija naponima koji nastaju usled pritiskivanja, dok je zona sa maksimalnim brojem pora i tankim zidovima podloţnija naponima koji nastaju prilikom zatezanja..." ]
[ "Metal foams are excellent candidates for multidisciplinary applications, as their physical and mechanical properties make them particularly attractive for the automotive industry. This study aims to determine the suitability of metal foams by investigating their mechanical and physical properties. In this project, porous aluminium structures will be designed, developed and characterized. One of the main objectives is to find out how to fabricate porous structures with improved elastic, plastic and densification regime. Experimental and numerical simulations have been carried out to determine the deformation mechanism as well as the material selection method for structural applications of aluminium-based foams. The first step in the development of metal foam was to use different processing techniques. Several main production technologies have been described, including plastic casting using a polymer or wax precursor, trapped gas expansion, the ALCAN process, and melt gas injection (air bubbling). The melt gas injection method was found to be more effective in producing homogeneous pore sizes because the process parameters can be easily adjusted. Therefore, the samples were prepared using the gas blowing method. The results of this method show a foam with cells of about 1 mm length and a density of 0.6 g/cm3 . These specimens were subjected to a uniaxial compression test at a displacement rate of 0.001 mm/s. The experimental results provide stress and strain values as a function of extension and load, respectively. The experimental results show that complete failure of the specimens occurs at a load of 90 KN. The specimens prepared by the gas blowing method showed: an elastic region, a uniform plateau region at about 23 MPa and densification region at about 35 MPa. During compression, a yield or collapse stress was measured at about 20 MPa. Interestingly, the densification region and the rapid increase in stress started at about 52%. A new model was developed for numerical simulation based on a Voronoi tessellation code to generate an open-cell porous structure. The developed model was used to study the deformation mechanism. A uniaxial compression test was performed with a uniformly applied load of 20 N. The tests were performed on three different specimens with different porosity (30%, 60% and 80%) to study the effect of porosity. The elastic-plastic material model based on Von Mises yield criterion with perfect plasticity (without strain hardening) was applied below 10% strain. Numerical simulations yielded stress and strain values and interestingly, the results show that specimens with higher porosity exhibited significantly higher normal stresses and larger stress plateaus. Both compressive and tensile stresses increase with increasing porosity. Similarly, ligaments and struts showed complicated stress fields. The results also show that the developed Voronoi-based numerical model are consistent with the experimental results in the case of quasi-static conditions up to the linear elastic region. In order to gain a better understanding, the simulation of the real dynamic behavior under elastic, plastic and compaction conditions for the open cell structure created with the Voronoi code needs to be investigated. For closed cell modelling, computer tomography is used to create 3D images of closed cell foam made of aluminum. The 3D model was developed and used for numerical simulation after thresholding and identifying the correct images. The mesh was very finely tuned using size 10 tetra-node elements. Moreover, elastic and plastic equations with isotropic material properties were applied to a nonlinear static test. Numerical simulation was performed under uniaxial compression conditions. During the compression test, a uniform compressive load was applied to the top surface of the specimen in the y-direction. The results show that the complicated stress fields affect the compressive and tensile stresses. The deformation is also strongly influenced by the shear stress. The zone with larger cells diameter exhibits compressive stresses, while the zone with a maximum number of cells and thin walls exhibits tensile stresses." ]
application/pdf
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Универзитет у Крагујевцу, Факултет инжењерских наука
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nd/4.0/" ]
Универзитет у Крагујевцу
[ "Voronoi Tessellated Model (VTM)", "otvorena poroznost", "zatvorena poroznost", "porozna struktura", "ispitivanje pritiskivanjem", "napon", "deformacija", "CT skeniranje", "kompjuterska tomografija" ]
[ "Voronoi Tessellated Model (VTM)", "open cell porosity", "closed cell porosity", "porous structure", "compressive load", "stress", "strain", "computer tomography (CT)" ]
[ "Razvoj i karakterizacija poroznih struktura od aluminijuma" ]
[ "Development and characterization of aluminum porous structures" ]
doctoralThesis
[ "BY-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151893/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1640/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21641" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21681
123456789-21681.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1627/bdef:Content/download
no
In vivo i in vitro ispitivanja biotoksičnosti polistirenskih mikro- i nanočestica
In vivo and in vitro biotoxicity studies of polystyrene micro- and nanoparticles
[ "Ljujić, Biljana" ]
[ "Gazdić Janković, Marina", "Rosić, Gvozden", "Milošević-Đorđević, Olivera", "Perović, Dijana" ]
Nikolić, Sandra P.
2023-09-06T12:19:22
[ "2023-09-06T12:19:22" ]
2022
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8668", "https://fedorakg.kg.ac.rs/fedora/get/o:1627/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/21681" ]
[ "Mikroplastika i nanoplastika značajno doprinose zagađenju životne sredine. Još uvek nije dovoljno poznato kakav je uticaj MP/NP na funkciju ćelija, kao i na zdravlje životinja i ljudi. U ovom istraživanju je pokazano da nakon oralnog unošenja, fluorescentno obeležene polistirenske (engl. polystyrene, PS) mikročestice (engl. microparticles, MP) i nanočestice (engl. nanoparticles, NP) prolaze kroz digestivni sistem miša, akumuliraju se i agregiraju u različitim tkivima i izazivaju funkcionalne promene u ćelijama i organima. Korišćenje kohlearnog eksplanta kao novog in vitro modela, ispitana je interakcija PS-MP/NP sa ćelijama unutrašnjeg uha u kome su detektovani agregati i heteroagregati PS čestica. PS-MP/NP su se akumulirale u intersticijumu testisa tretiranih životinja, oko seminifernih tubula, što je uzrokovalo statistički značajno smanjenje koncentracije testosterona u serumu. Splenociti tretiranih mužjaka su povećano sekretovali IL-12p35 i IL-23, dok su testovi citotoksičnosti i genotoksičnosti ukazivali na smanjenu vijabilnost ćelija i povećano oštećenje DNK u ćelijama slezine. Kod mužjaka je zabeležen anksiogeni odgovor nakon primene PS-MP/NP, dok je u uzorcima tkiva hipokampusa tretiranih ženki detektovana povećana ekspresiju Bax i Nlrp3 gena, što ukazuje na proapoptotički i proinflamatorni uticaj PS-MP/NP. Jedan od zaključaka ove disertacije je da efekti PS-MP/NP zavise od pola organizma koji je izložen njihovom delovanju, što otvara vrata budućim istraživanja u cilju sprečavanja štetnih efekata PS čestica na zdravlje ljudi." ]
[ "Commercially manufactured or generated through environmental degradation, microplastics (MPs) and nanoplastics (NPs) considerably contribute to environmental pollution. There is a knowledge gap in how exposure to MPs/NPs changes cellular function and affects animal and human health. Here, we demonstrate that after oral uptake, fluorescent polystyrene (PS) nanoparticles pass through the mouse digestive system, accumulate and aggregate in different organs, and induce functional changes in cells and organs. Using cochlear explant as a novel in vitro system, we confirmed the consequences of PS-MP/NP interaction with inner ear cells by detecting aggregates and hetero-aggregates of PS particles in hair cells. The testes of treated males accumulated MPs/NPs in the interstitial compartment surrounding the seminiferous tubules, which was associated with a statistically significant decrease in testosterone levels. Male mice showed increased secretion of interleukins (IL-12p35 and IL-23) by splenocytes while cyto- and genotoxicity tests indicated impaired cell viability and increased DNA damage in spleen tissue. Males also showed a broad range of anxiogenic responses to PS nanoparticles while hippocampal samples from treated females showed an increased expression of Bax and Nlrp3 genes, indicating a pro-apoptotic/proinflammatory effect of PS treatment. Taken together, induced PS effects are also gender-dependent, and therefore, strongly motivate future research to mitigate the deleterious effects of nanosized plastic particles." ]
application/pdf
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Универзитет у Крагујевцу, Факултет медицинских наука
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Крагујевцу
[ "polistiren", "mikroplastika", "nanoplastika", "miševi", "akumulacija", "ponašanje" ]
[ "Polystyrene", "microplastics", "nanoplastics", "mice", "accumulation", "behavior" ]
[ "In vivo i in vitro ispitivanja biotoksičnosti polistirenskih mikro- i nanočestica" ]
[ "In vivo and in vitro biotoxicity studies of polystyrene micro- and nanoparticles" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151853/Disertacija.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1627/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21681" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/18671
123456789-18671.pdf
yes
no
https://fedorakg.kg.ac.rs/fedora/get/o:1409/bdef:Content/download
no
Efekti probiotika (Lactobacillus Rhamnosus) na parodontopatiju kod miševa sa hiperhomocisteinemijom: uloga disbioze
Effects of probiotic (Lactobacillus Rhamnosus) on periodontal disease in mice with hyperhomocysteinemia: the role of dysbiosis
[ "Jeremić, Nevena" ]
[ "Tyagi, Suresh", "Obradović, Radmila", "Živković, Vladimir", "Nikolić Turnić, Tamara" ]
Stanišić, Dragana
2021-10-28T09:34:43
[ "2021-10-28T09:34:43" ]
2021-09-24
[ "http://eteze.kg.ac.rs/application/showtheses?thesesId=8353", "https://fedorakg.kg.ac.rs/fedora/get/o:1409/bdef:Content/download", "https://nardus.mpn.gov.rs/handle/123456789/18671" ]
[ "Uvod: Lactobacillus rhamnosus (LGG) je gram pozitivni fakultativni anaerob, probiotik, koji ne fermentira saharozu i laktozu. S obzirom na antimikrobna, antiinflamacijska i nekariogena svojstva, LGG bi mogao ponuditi smanjenje rizika, ekonomski prihvatljiv način u prevenciji i lečenju parodontalne bolesti kao i odličnu opciju za postizanje i održavanje parodontološkog zdravlja. Cilj: Cilj ove studije bio je da se ispitaju efekti LGG kod zdravih, miševa sa parodontopatiojom (PD), miševa sa urođenim nedostatkom cistation β-sintetaze (hiperhomocisteinemičnih (HHcy) miševa) i miševa sa disbiozom, kao i uticaj urođenog nedostatka cistation β-sintetaze i disbioze na nastanak PD. Materijal i metode: U studiji bilo je uključeno 48 miševa, 36 miševa divljeg tipa (Wild type, WT, C57BL/6J) i 12 miševa sa urođenim nedostatkom cistation βsintetaze (CBS+/- knock-out heterozigoti, B6.129P2‐Cbstm1Unc/J 002853) koji su razvrstani u sledećih osam grupa: zdravi miševi (WT), miševi tretirani probiotikom LGG, miševi kojima je indukovana PD, miševi kojima je indukovana PD i koji su tretirani probiotikom LGG, CBS+/- miševi, CBS+/- miševi koji su tretirani probiotikom LGG, miševi kojima je indukovana disbioza, miševi kojima je indukovana disbioza i koji su tretirani probiotikom LGG. Tretman LGG podrazumevao je tromesečnu primenu peroralno, u dozi od 2.5×105 CFU dnevno. Nakon tretmana životinje su žrtvovane i sprovedene su mikrobiološke analize fecesa, izmeren je gingivalni protok krvi Laser Doppler-om, radiografska i histomorfometrijska analiza parodontalnog tkiva, zimografijska analiza aktivnosti matriksnih metaloproteinaza, Western blot analiza ekspresije proteina i kvantitativna reakcija lančane polimerizacije u realnom vremenu. Rezultati: LGG primnjen kod navedenih grupa miševa pokazao je antimikrobne i antiinflamacijske efekte, poboljšao oporavak parodontalnog tkiva i doprineo očuvanju zdravog. LGG je poboljšao stanje mikrobiote kod svih ekperimentalnih grupa a time uticao i na poboljšanje PD i pokazao preventivno dejstvo u nastanku iste. Takođe, rezultati su pokazali da disbioza i hiperhomocisteinemija, u našem slučaju kao urođeni poremećaj, potpomažu nastanku PD dok hiperhomocisteinemija, kao individualni poremećaj, indukuje disbiozu. Zaključak: LGG preko kompleksnih mehanizama ostvaruje antimikrobne, antiinflamacijske i preventivne efekte u stanju parodontopatije. LGG doprinosi poboljšanju i očuvanju parodontalnog tkiva miševa. HHcy i disbioza utiču i potpomažu nastanku PD." ]
[ "Introduction: Lactobacillus rhamnosus (LGG) is a gram positive facultative anaerobic, probiotic, which does not ferment sucrose and lactose. Given its antimicrobial, antiinflammatory and non-cariogenic properties, LGG could offer risk reduction, an inexpensive way to prevent and treat periodontal disease as well as an excellent option for achieving and maintaining periodontal health. Aim: The aim of this study was to examine the effects of LGG in healthy mice with periodontal disease (PD), mice with congenital cystation β-synthetase deficiency (hyperhomocysteinemic (HHcy) mice) and mice with dysbiosis, as well as the effect of congenital β-cystation deficiency synthetases and dysbioses on the formation of PD. Material and methods: The study included 48 mice, 36 wild-type mice (Wild type, WT, C57BL/6J) and 12 mice with congenital cystation β-synthetase deficiency (CBS+/- knock-out heterozygotes, B6.129P2 ‐ Cbstm1Unc/J 002853) classified into the following eight groups: healthy mice (WT), mice treated with LGG probiotics, PD-induced mice, PD-induced mice treated with LGG probiotics, CBS+/- mice, CBS+/- mice treated with the LGG probiotic, mice induced by dysbiosis, mice induced with dysbiosis and treated with the probiotic LGG. LGG treatment required quarterly administration orally, at a dose of 2.5×105 CFU. After treatment, the animals were sacrificed and microbiological analyzes of feces, gingival blood flow was measured Laser Doppler, radiographic and histomorphometric analysis of periodontal tissue zymographic analysis of MMP activity, Western blot analysis of protein expression and quantitative real-time chain polymerization reaction were performed. Results: LGG applied to these groups of mice showed antimicrobial and anti-inflammatory effects, improved periodontal tissue recovery and contributed to maintaining healthy. LGG improved the condition of the microbiota in all experimental groups and thus influenced the improvement of periodontitis and showed a preventive effect in its development. Also, the results showed that dysbiosis and hyperhomocysteinemia, in our case as a congenital disorder, contribute to the development of periodontitis while hyperhomocysteinemia, as an individual disorder, induces dysbiosis. Conclusions: LGG through complex mechanisms achieves antimicrobial, anti-inflammatory and preventive effects in the periodontal disease. LGG contributes to the improvement and preservation of periodontal tissue in mice. HHcy and dysbiosis affect and promote the development of periodontitis." ]
application/pdf
sr
Универзитет у Крагујевцу, Факултет медицинских наука
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Крагујевцу
[ "Lactobacillus rhamnosus", "parodontopatija", "HHcy", "disbioza", "probiotici", "MMP", "mikrobiota" ]
[ "Lactobacillus rhamnosus", "periodontitis", "HHcy", "dysbiosis", "probiotics", "MMP", "microbiota" ]
[ "Efekti probiotika (Lactobacillus Rhamnosus) na parodontopatiju kod miševa sa hiperhomocisteinemijom: uloga disbioze" ]
[ "Effects of probiotic (Lactobacillus Rhamnosus) on periodontal disease in mice with hyperhomocysteinemia: the role of dysbiosis" ]
doctoralThesis
[ "BY-NC-ND" ]
Јеремић, Невена; Живковић, Владимир; Обрадовић, Радмила; Николић Турнић, Тамара; Тyаги, Суресх; Станишић, Драгана; Ефекти пробиотика (Лацтобациллус Рхамносус) на пародонтопатију код мишева са хиперхомоцистеинемијом: улога дисбиозе; Ефекти пробиотика (Лацтобациллус Рхамносус) на пародонтопатију код мишева са хиперхомоцистеинемијом: улога дисбиозе;
[ "https://nardus.mpn.gov.rs/bitstream/id/77135/Doctoral_thesis_11610.pdf", "https://nardus.mpn.gov.rs/bitstream/id/77331/bitstream_77331.pdf", "https://fedorakg.kg.ac.rs/fedora/get/o:1409/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_18671" ]
[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/10011
123456789-10011.pdf
yes
no
http://nardus.mpn.gov.rs/bitstream/id/41273/Disertacija.pdf
no
Integrisana multiveličinska obrada radiografskih snimaka
Integrated multi-scale radiography image processing
[ "Petrović, Vladimir" ]
[ "Lončar-Turukalo, Tatjana", "Grbić, Tatjana", "Sečujski, Milan", "Sladojević, Srđan", "Vujisić, Miloš", "Petrović, Vladimir" ]
Ostojić, Vladimir
2018-10-09T12:26:36
[ "2018-10-09T12:26:36", "2020-07-03T14:05:59" ]
2018-09-21
[ "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija152767171844750.pdf?controlNumber=(BISIS)107425&fileName=152767171844750.pdf&id=11451&source=NaRDuS&language=sr", "https://nardus.mpn.gov.rs/handle/123456789/10011", "https://www.cris.uns.ac.rs/record.jsf?recordId=107425&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije152767603095969.pdf?controlNumber=(BISIS)107425&fileName=152767603095969.pdf&id=11460&source=NaRDuS&language=sr" ]
[ "Predložena je multiveličinska obrada kojom je moguće objediniti pojačanje vidljivosti detalja kao i poboljšanje kontrasta radiografskih snimaka, kojim se uspostavlja ravnoteža između kontrasta slabo i jasno vidljivih struktura. Pored toga, obradom je obuhvaćeno i smanjenje globalnog kontrasta, čime je moguće dodatno naglasiti lokalne strukture. Drugim rečima, predložena je multiveličinska obrada koja integriše sve korake poboljšanja vidljivosti anatomskih struktura. Predložena obrada razmotrena je u okviru razvijenog algoritamskog okvira koji sadrži korake obrade radiografskih snimaka koji su potrebni da bi se sirov signal, dobijen od strane detektora zračenja, obradio i time pripremio za prikazivanje lekarima. Svaki od koraka obrade je analiziran i predložena su originalna rešenja, kao i poboljšanja postojećih pristupa. Evaluacijom je pokazano se integrisanom obradom postižu rezultati koji prevazilaze one koji se dobijaju savremenom vrhunskom obradom, kao i da je celokupni proces obrade moguće kontrolisati sa samo dva operativna parametra. Da bi se upotpunila sveobuhvatna analiza procesa obrade radiografskih snimaka, u disertaciji je razmotreno i uklanjanje artefakata nastalih obradom, kao i mogućnost ubrzanja obrade radiografskih snimaka. Za oba problema su ponuđena originalna rešenja čija je efikasnost eksperimentalno potvrđena." ]
[ "The thesis focuses on digital radiography image processing. Multi-scale processing is proposed, which unifies detail visibility enhancement, local contrast enhancement and global contrast reduction, thus enabling additional amplification of local structures. In other words, the proposed multi-scale image processing integrates all steps of anatomical structures visibility enhancement. For the purpose of the proposed anatomical structures visibility enhancement analysis, a processing framework was developed. The framework consists of several stages, used to process the image from its raw form (signal obtained from the radiation detector), to the state where it will be presented to the medical diagnostician. Each stage is analyzed and for each an original solution or an improvement of an existing approach was proposed. Evaluation has shown that integrated processing provides results which surpass state-of-the-art processing methods, and that the entire processing pipeline can be controlled using just two parameters. In order to complete the comprehensive analysis of radiography image processing, processing artifacts removal and radiography image processing acceleration are analyzed in the thesis. Both issues are addressed through original solutions whose efficiency is experimentally confirmed." ]
sr (latin script)
Универзитет у Новом Саду, Факултет техничких наука
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Новом Саду
[ "Obrada signala", "digitalna obrada slike", "radiografski snimci", "multiveličinsko poboljšanje" ]
[ "Signal processing", "digital image processing", "radiography images", "multi-scaleenhancement" ]
[ "Integrisana multiveličinska obrada radiografskih snimaka" ]
[ "Integrated multi-scale radiography image processing" ]
doctoralThesis
[ "BY-NC-ND" ]
Петровић, Владимир; Вујисић, Милош; Петровић, Владимир; Лончар-Турукало, Татјана; Грбић, Татјана; Сечујски, Милан; Сладојевић, Срђан; Остојић, Владимир; Интегрисана мултивеличинска обрада радиографских снимака; Интегрисана мултивеличинска обрада радиографских снимака;
[ "http://nardus.mpn.gov.rs/bitstream/id/41273/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/41274/IzvestajKomisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/41274/IzvestajKomisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/41273/Disertacija.pdf", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija152767171844750.pdf?controlNumber=(BISIS)107425&fileName=152767171844750.pdf&id=11451&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_10011" ]
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[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/11580
123456789-11580.pdf
yes
no
https://nardus.mpn.gov.rs/bitstream/id/40100/Disertacija.pdf
no
Dobijanje nanokristalnih barijum titanatnih filmova definisane strukture i svojstava za primenu u mikrotalasnim tunabilnim uređajima
Preparation of nanocrystalline barium titanate based films with defined structure and propreties for application in microwave tunable devices
[ "Srdić, Vladimir" ]
[ "Stojanović, Goran", "Srdić, Vladimir", "Milanović, Marija", "Bobic, Jelena", "Stijepović, Ivan" ]
Vukmirović, Jelena
2019-12-23T16:36:43
[ "2019-12-23T16:36:43", "2020-07-03T13:53:45" ]
2019-03-15
[ "https://nardus.mpn.gov.rs/handle/123456789/11580", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija154599818251392.pdf?controlNumber=(BISIS)110058&fileName=154599818251392.pdf&id=12492&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/record.jsf?recordId=110058&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije154599819648293.pdf?controlNumber=(BISIS)110058&fileName=154599819648293.pdf&id=12493&source=NaRDuS&language=sr" ]
[ "U poslednjih nekoliko decenija, feroelektrici su prepoznati kao dobri kandidati za širok spektar primene. Barijum titanat je jedan od najčešće istraživanih perovskitnih materijala usled tipičnog feroelektričnog ponašanja na sobnoj temperaturi, sa histerezisnom zavisnosti između polarizacije i električnog polja. Specifična svojstva BaTiO3 čine ovaj materijal veoma korisnim u proizvodnji kondenzatora, memorija, senzora i dr. Pored toga, paraelektrična faza BaTiO3 ima primenu u proizvodnji mikrotalasnih tunabilnih uređaja. BaTiO3 pokazuje paralaketrično ponašanje iznad Kirijeve temperature (120°C) i veliki je izazov modifikovati materijal da bude paraelektričan na sobnoj temperaturi. Delimičnom supstitucijom Ba2+ ili Ti4+ jona, jonima Sr2+ ili Zr4+, respektivno, snižava se Kirijeva temperatura i dolazi do pomeranja fazne transformacije feroelektri čno/paraelektrično na niže temperature. Monolitna keramika na bazi bazi BaTiO3 je često istraživana kako bi se ispitale promene u strukturi i svojstvima uzrokovane dodatkom dopanata, međutim ne postoji praktična primena ovih materijala u mikrotalasnim tunabilnim tehnologijama. S druge strane, u trendu sveopšte minijaturizacije elektronskih komponenti, tanki filmovi su prepoznati kao dobri kandidati za proizvodnju tunabilnih uređaja. Jedan od ciljeva ovog istraživanja bio je ispitivanje strukturnih i funkcinalnih svojstava tankih filmova na bazi barijum titanata, BaTiO3, Ba1-xSrxTiO3 (x=0,1, 0,2, 0,3 i 0,4) i BaTi1-xZrxO3 (x=0,1 i 0,2), pripremljenih hemijskom depozicijom iz tečne faze. Metalne soli BaCO3, C4H6O4Sr i ZrOCl2 H2O i Ti(OCH2CH2CH2CH3)4 rastvorene su odvojeno u kiseloj sredini i pomešane u transparentne solove. Inkdžet štampa i spin tehnika koršćene su za depoziciju funkcionalnih filmova na bazi BaTiO3. Nakon deponovanja, pripremljeni filmovi su termički tretirani na različitim temperaturama do 1000°C. U zavisnosti od koncentracije pripremljeni su filmovi debljine od 100 do 700 nm,sa veličinom zrna od nekoliko desetina nanometara. Strukturna karakterizacija potvrdila je promene u strukturi BaTiO3 tankih filmova sa dodatkom Sr2+ i Zr4+. Tetragonalna (feroelektrična) faza BaTiO3 je potvrđena rentgenostrukturnom analizom i Ramanovom spektroskopijom. S druge strane, smanjenje tetragonalnosti je primećeno kod dopiranih uzoraka. Promene u funkcionalnosti dopiranih BaTiO3 filmova analizirane su na osnovu dielektričnih i feroelektričnih merenja. Izvršene analize su potvrdile feroelektrično ponašanje kod BaTiO3, dok se feroelektrični odgovor u tankim filmovima smanjuje sa dopiranjem. Priprema elektroda specifičnih geometrija pogodnih za tunabilna merenja različitim tehnikama depozicije bio je drugi cilj istraživanja. Tehnika spaterovanja u kombinaciji sa laserskim uklanjanjem, inkdžet štampa i fotolitografija su korišćene za pripremu kružnih i koplanarnih elektroda na površini barijum titanatnih tankih filmova. Uticaj procesnih parametara svake od pomenutih metoda na dimenzionalnu preciznost pripremljenih elektroda je bio predmet istraživanja u okviru teze. Odabrani laser se pokazao kao neprikladan za pripremu elektroda na pripremljenim barijum titanatnim tankim filmovima. Inkdžet štampa se pokazala kao korisna u pripremi elektroda mikrometarskih fimenzija, dok je za pripremu sofisticiranijih geometrija fotolitografija pokazala najbolje performanse." ]
[ "In past few decades, ferroelectrics are recognized as good candidates for wide range of applications. Barium titanate is one of the most investigated perovskite materials due to typical ferroelectric behavior at room temperature, with hysteresis dependence of the polarization and electric field. Specified properties of BaTiO3 make this material useful in production of capacitors, memories, sensors, etc. Nevertheless, paraelectric phase of BaTiO3 may have application in production of microwave tunable devices. Barium titanate shows paraelectric behavior at temperatures above the Currie temperature (120 °C) and it is great challenge to make material paraelectric at room temperature. Partial substitution of Ba2+ or Ti4+ ions, by Sr2+ or Zr4+, respectively, decreases the Currie temperature of barium titanate and moves phase transition ferroelectric/paraelectric to lower temperatures. Bulk BaTiO3 was often investigated in order to improve structure and functionality by addition of dopant, but do not have practical application in microwave tunable technologies. On the other hand, with the trend of overall miniaturization of electronic devices, thin films are recognized as good candidates for production of tunable devices. One of the aims in this research was investigation of structural and functional properties of barium titanate based thin films, BaTiO3, Ba1-xSrxTiO3 (x=0,1, 0,2, 0,3 i 0,4) and BaTi1-xZrxO3 (x=0,1 i 0,2), prepared by chemical solution deposition. Metal salts of BaCO3, C4H6O4Sr and ZrOCl2 H2O and Ti(OCH2CH2CH2CH3)4 were separetly disolved in acetic environment and mixed in clear transparent sols. Inkjet printing and spin coating were used for deposition of functional BaTiO3 based fims. After deposition prepared films were thermally treated at different temperatures up to 1000 °C. In dependence of sol concentration thickness of obtained films is from 100 to 700 nm and grain size is few tens of nanometers. Structural characterization confirmed changes in structure of barium titanate thin films by addition of Sr2+ i Zr4+. Tetragonal (ferroelectric) phase of BaTiO3 is confirmed by X-ray diffraction and Raman spectroscopy. On the other hand, decreasing of tetragonality was noticed in doped samples. Changes in functionality of doped BaTiO3 thin films were analyzed by dielectric and ferroelectric measurements. Performed analysis confirmed ferroelectric behavior of barium titanate thin films, and decrease in ferroelectric answer of doped films. Investigation of possibility of complex shaped electrodes preparation,suitable for tunability measurements, by different deposition techniques was the second goal of this research. Sputtering technique in combination with laser removal, inkjet printing and photolithography were used for preparation of complex circular and coplanar electrodes on the surface of barium titanate based thin films. Influence of processing parameters for the each of mentioned technique on dimensional precision of prepared electrodes was investigated. Selected laser was not appropriate for production of electrodes on prepared barium titanate based thin films. Inkjet printing was useful for production of electrodes in micrometer range, but for more sophisticated geometries photolithography shows the best performance." ]
sr (latin script)
Универзитет у Новом Саду, Технолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nd/4.0/" ]
Универзитет у Новом Саду
[ "Barijum titanat", "tanki filmovi", "inkdžet štampa", "feroelektrici", "mikrotalasni tunabilni uređaji" ]
[ "Barium titanate", "Thin films", "Inkjet printing", "Ferroelectrics", "Microwave tunable devices" ]
[ "Dobijanje nanokristalnih barijum titanatnih filmova definisane strukture i svojstava za primenu u mikrotalasnim tunabilnim uređajima" ]
[ "Preparation of nanocrystalline barium titanate based films with defined structure and propreties for application in microwave tunable devices" ]
doctoralThesis
[ "BY-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/40101/IzvestajKomisije.pdf", "http://nardus.mpn.gov.rs/bitstream/id/40100/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/40101/IzvestajKomisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/40100/Disertacija.pdf", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija154599818251392.pdf?controlNumber=(BISIS)110058&fileName=154599818251392.pdf&id=12492&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11580" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/11568
123456789-11568.pdf
yes
no
http://nardus.mpn.gov.rs/bitstream/id/37664/Disertacija.pdf
no
Vijabilnost populacije tekunice (Spermophilus citellus) pod uticajem promene klime i staništa
Viability of European ground squirrel population (Spermophilus citellus) under climate and land use change.
[ "Milić, Dubravka", "Ćirović, Duško" ]
[ "Bjelić-Čabrilo, Olivera", "Milić, Dubravka", "Ćirović, Duško", "Marković, Vladimir", "Đurđević, Vladimir" ]
Nikolić, Tijana
2019-12-23T16:36:35
[ "2019-12-23T16:36:35", "2020-07-03T13:41:24" ]
2019-10-24
[ "https://nardus.mpn.gov.rs/handle/123456789/11568", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija156621003506519.pdf?controlNumber=(BISIS)111036&fileName=156621003506519.pdf&id=13310&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/record.jsf?recordId=111036&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije156621005169535.pdf?controlNumber=(BISIS)111036&fileName=156621005169535.pdf&id=13311&source=NaRDuS&language=sr" ]
[ "U radu je analiziran odgovor lokalnih populacija tekunice u Vojvodini na promene uslova klime i korišćenja zemljišta. Odgovori populacija tekunice (tipičnog predstavnika otvorenih staništa i idealnog model organizma) na pomenute promene omogućiće razmatranje kako mere na regionalnom nivou: i) mogu unaprediti zaštitu i očuvanje tekunice ii) ublažiti efekti promene klime i korišćenja zemljišta iii) mogu usaglasiti razvoj poljoprivrede sa očuvanjem biodiverziteta travnatih ekosistema. Kako bi se odgovorilo na pitanja i postavljene hipoteze u radu sprovedeno je terensko istraživanje, korišćen standardni prostorni pristup i ekološko modelovanje. Sve primenjene tehnike su komplementarne jedna drugoj u dobijanju odgovora na postavljena pitanja gde rezultati jedne analize predstavljaju ulazne podatke za drugu analizu. U tezi su korišćeni podaci dobijeni na osnovu terenskog mapiranja lokalnih populacija i podaci iz eksperimenta modelovanja kao i serija podataka dobijena cenzusom kolonija tekunica i terenskim uzorkovanjem zemljišta i vegetacije. Rasprostranjenje populacija oblikuju klimatski uslovi ali pored abiotičkih faktora uslovljavaju ih i biotički faktori i kretanje jedinki. Promena klime direktno utiče na distribuciju optimalnih uslova. Istraženo je u kojoj meri će doći do promene u distribuciji optimalnih uslova sredine za tekunicu. Potencijalna promena analizirana je uzimajući u obzir klimatski scenario Max Plank Instituta sa tri rcp projekcije i tri generisana prostorna scenarijadistribucije otvorenih travnatih staništa u Vojvodini. Sagledavanje mogućih efekata promene sredinskih uslova dalo je mogućnost da se ukaže na zone koja će biti ključne za očuvanje populacija tekunica i travnatih ekosistema u Vojvodini. Sledeće, s obzirom da disperzija jedinki, dostupnost resursa kao i delovanje lokalnih faktora ugrožavanja (barijere, menadžment staništa, varijabilnost sredinskih uslova, predatorstvo, poljoprivredne aktivnosti) oblikuju distribuciju populacija u prostoru, u radu je analiziran i uticaj promene ovih faktora na distribuciju populacija. Na području lokalnog slatino-stepskog koridora srednjeg Banata istražene su kompozicija biljnih vrsta, upravljanje na staništu, promena u kompoziciji okolnih poljoprivrednih kultura i dinamika populacije. Dobijene su informacije o efektima lokalnih uslova na prisustvo kolonija, veličinu kolonija i kondiciono stanje jedinki. Informacije dobijene u ovim poglavljima su kasnije korišćeni za formiranju seta kriterijuma radi karakterizacije svih mapiranih staništa u Vojvodini. Dalje, veliku ulogu u poljoprivrednom predelu imaju tranziciona staništa koja povezuju lokalne populacije. Identifikovanje koja tranziciona staništa koriste jedinke tekunice je ključno za očuvanje populacija i ublažavanje trena opadanja brojnosti. Na terenu su mapirani distribucioni obrasci lokalnih kolonija tekunice i istraženo je da li postoje razlike na lokalnom i predeonom nivou u distribuciji nastanjenih i napuštenih staništa na području Vojvodine. U radu je dalje analizirana mapirana mreža staništa lokalnih populacija i pretpostavljano je da populacije funkcionišu i održavaju se u okviru metapopulacione strukture. Sa druge strane, veličina i površina koju zauzimaju potencijalne metapopulacione struktura mapirane mreže staništa koje se razlikuju u odnosu na okupiranost, kapacitet i povezanost nisu bile poznate. Kako bi se kvantifikovale potencijalne metapopulacione jedinice i utvrdila vijabilnost svake definisane pojedinačne metapopulacione mreže korišćen je metod ključnog fragmenta. Mapirane mreže evaluirane su iz perspektive samog taksona i testiran je potencijalni disperzioni kapacitet. Proverena je permeabilnost predeonog matriksa između mapiranih staništa i identifikovani su potencijalni koridori za jedinke. Ovakav pristup daje uvid u koji deo predela je značajno i neophodno ulagati ograničena sredstva za zaštitu prirode unutar regiona Vojvodine. U tezi je na kraju ocenjen doprinos trenutne regionalne konzervacione prakse zaštiti staništa tekunice, dat pregled slabih tačaka i predlog predeono adaptacionih mera koji će doprineti zaštiti i očuvanju populacije tekunice kao i mozaika otvorenih travnatih staništa." ]
[ "The study analyzes the European ground squirrel (EGS) population response to land use and climate change in Vojvodina. The response of the EGS population (typical species of open grassland habitats and the ideal model organism) to changes in environmental conditions in this region will enable consideration of following measures at the local and landscape level: i) effective protection and conservation of the EGS and habitat it relay on; ii) climate change and land use mitigation and adaptation iii) how can we harmonize the development of agriculture and preserve the biodiversity of grassland ecosystem in agricultural settings. In order to answer the questions of this study, the field research was conducted, standard spatial approach and ecological modeling were employed. All applied techniques are complementary to one another in obtaining responses to the questions asked. The results of one analysis represent the input data for the following one. The data for the study were obtained: from EGS local populations’ field mapping, from the modeling experiment, the census campaigned and the field sampling of soil and vegetation. Distribution of populations, which in addition to abiotic factors are conditioned by biotic factors and movement of individuals were evaluated in the context of climate change. Climate change directly affects the distribution of optimalconditions. The potential changes in distribution of optimal environmental conditions for EGS were assessed by considering changes in abiotic factors and the availability of grasslands. The climate scenario obtained using a dynamic vegetation map with three rcp projections and three spatial scenarios for the distribution of open grasslands were used. The extrapolation of a suitable area obtained by presence only model Maxent gives the possibility to point to the zones that will be crucial for preserving the populations and grassland ecosystems in future. Dispersion of individuals, availability of resources and the operation of local threats (e. g. barriers, habitat management, variability of the central conditions, predation, agricultural activities) shape the distribution of populations in space and time. In the area of the local saline steppe corridor of the central Banat in Vojvodina i) the composition of plant species, ii) open grassland habitat management iii) changes in the composition of surrounding crops and iv) population dynamics of EGS have been investigated. The effects of local conditions on the presence, size of colonies and condition of the individuals of EGS were assessed. The information obtained in these chapters was later used to form a set of criteria for the characterization of all mapped habitats in Vojvodina. In the agricultural area, transitional habitats connect local populations of many species. Identifying transitional habitats which potentially can be used by focal species is key to protect and mitigate population decline. For this purpose distribution patterns of the colonies were mapped in the field. The haracteristics and differences among mapped patches at the local and sub landscape scale were detected and evaluated. Later in the study the network of mapped habitats patches was evaluated. It was assumed that mapped populations in Vojvodina function within several metapopulations networks. However, the size and area of potential meta-population networks are likely to differ in relation to occupancy, capacity and habitat connectivity. The knowledge of potential population units was scarce. In order to quantify the potential population units, to determine the viability and conservation priority of each defined habitat network the key patch approach was used. Mapped networks were evaluated from the perspective of the taxon itself and potential dispersed capacity was tested. The ermeability of the matrix area, connectivity of the mapped habitats and the distribution of potential corridors was verified. This approach gives an opportunity to assess to which part of the area and population it is necessary to invest limited resources for nature protection in Vojvodina.The contribution of current regional conservation practice to protection of EGS was evaluated, a brief overview of the weak points and the proposal of preciseadaptation measures that should be taken in Vojvodina are presented in final chapter. The results of this study propose the development of spatial adaption measures and conservation design that will contribute not only in preserving EGS and habitats it relay on but also other wild plant and animal species in this intensively used agricultural settings." ]
sr (latin script)
Универзитет у Новом Саду, Природно-математички факултет
[ "info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/43002/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Новом Саду
[ "Tekunica", "promena klime", "sitni sisari", "zaštićena područja", "mreža staništa", "ekološko modelovanje", "otvorena travnata staništa", "ekološko zoniranje", "diverzitet vrsta", "mere zaštite." ]
[ "European ground squirrel", "climate change", "small mammals", "protected areas", "habitat network", "ecological modeling", "open grassland areas", "agroecological zoning", "species diversity", "active conservation measures." ]
[ "Vijabilnost populacije tekunice (Spermophilus citellus) pod uticajem promene klime i staništa" ]
[ "Viability of European ground squirrel population (Spermophilus citellus) under climate and land use change." ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/37665/IzvestajKomisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/37664/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/37665/IzvestajKomisije.pdf", "http://nardus.mpn.gov.rs/bitstream/id/37664/Disertacija.pdf", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija156621003506519.pdf?controlNumber=(BISIS)111036&fileName=156621003506519.pdf&id=13310&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11568" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21715
123456789-21715.pdf
yes
no
https://fedorani.ni.ac.rs/fedora/get/o:1907/bdef:Content/download
no
Motivacioni SHE model neverstva u partnerskim vezama
[ "Stefanović-Stanojević, Tatjana" ]
[ "Tošić Radev, Milica", "Šakotić Kurbalija, Jelena" ]
Đorđević, Tamara S.
2023-09-06T14:49:23
[ "2023-09-06T14:49:23" ]
2022
[ "http://eteze.ni.ac.rs/application/showtheses?thesesId=8617", "https://fedorani.ni.ac.rs/fedora/get/o:1907/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/117957385", "https://nardus.mpn.gov.rs/handle/123456789/21715" ]
[ "" ]
[ "The paper aimed to examine the Motivational SHE model of infidelity in romantic relationships. The theoretical basis of the research comprises the theory of attachment, which includes the anxiety and avoidance dimensions, the self-expansion model of motivation and cognition in close relationships, which distinguishes self-expansion motivation and inclusion of other in the self, the deficit model, which refers to the basic needs that are met in close relationships (emotional, sexual and communication); the TriP theory of love, which includes three components: intimacy, passion, and commitment. The study involved 411 females and 110 males, classified into three age categories - X, Y, Z generations. The participants completed the online questionnaire, and the following scales were used: Modified Brennan’s Close Relationships Inventory, Self-Expansion Questionnaire, Inclusion of Other in the Self, Social and Emotional Loneliness Scale, New Sexual Satisfaction Scale, Marital Communication Quality Scale, Love Scale, and Romantic Relationships Infidelity Motivation Scale. The regression analysis procedure was used to check the possibility of predicting criterion variables based on predictor variables. The SEM analysis (structural equation modeling) procedure was used to determine mediator relations and test the model. The results show that motivation for infidelity can be predicted based on attachment. The S, H, E components of the model were found to be predictable from attachment. Moreover, the motivation for infidelity was found to be predictable from S, H, and E components. Also, the findings indicate a Nauĉna disciplina: UDK: CERIF klasifikacija: Tip licence Kreativne zajednice: different quality of motivation for infidelity in men and women. Significant findings indicate the existence of mediation of parts of S and H components in the male sample. At the same time, there is a mediation of the E component between attachment and motivation for infidelity in women. The basic hypothesis was confirmed, and the obtained models correspond to the data. The Motivational SHE Theory of Infidelity in Romantic Relationships was proposed, built upon the Motivational SHE Model of Infidelity in Romantic Relationships and obtained material from previous research." ]
application/pdf
sr
Универзитет у Нишу, Филозофски факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Нишу
[ "Neverstvo", "privrţenost", "partnerski odnosi", "SHE model", "model deficita", "samoproširenje", "motivacija za neverstvom", "emocionalno neverstvo", "seksualno neverstvo" ]
[ "Infidelity", "attachment", "romantic relationships", "SHE model", "the deficit model", "self-expansion", "motivation for infidelity", "emotional infidelity", "sexual infidelity" ]
[ "Motivacioni SHE model neverstva u partnerskim vezama" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151942/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/155710/Djordjevic_Tamara_S.pdf", "https://fedorani.ni.ac.rs/fedora/get/o:1907/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21715" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21711
123456789-21711.pdf
yes
no
https://fedorani.ni.ac.rs/fedora/get/o:1883/bdef:Content/download
no
Mogućnost primene tehnologije Veb 2.0 u nastavi gramatike engleskog jezika
[ "Mišić Ilić, Biljana" ]
[ "Jovanović, Vladimir", "Blagojević, Savka", "Novakov, Predrag", "Trajanović, Miroslav" ]
Đorđević, Jasmina
2023-09-06T14:49:21
[ "2023-09-06T14:49:21" ]
2013
[ "http://eteze.ni.ac.rs/application/showtheses?thesesId=8596", "https://fedorani.ni.ac.rs/fedora/get/o:1883/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/533534870", "https://nardus.mpn.gov.rs/handle/123456789/21711" ]
[ "" ]
[ "This doctoral thesis is a theoretical and an empirical research describing and examining a certain number of technological tools known as Web 2.0, which might improve the process of English language teaching (ELT) considerably. Furthermore, the possibility of their application in the process of teaching the grammar of English language as a foreign language has been attempted by means of three tools, PBworks, Hot Potatoes and Dvolver. With the aim to illustrate the use of Web 2.0 in ELT, the possibility of applying the mentioned tools in the process of teaching a single grammar segment, the meaning of modal verbs, has been tested at the tertiary level of academic studies at two English language departments. Since this research is designed both as a theoretical and an empirical investigation, several objectives had to be set including a theoretical review as well as an empirical validation of the hypothesis at the level of applied linguistics. A detailed review of theoretical approaches and techniques as well as their importance in the area of ELT methodology has been provided in the second chapter. In addition, the chapter provides a review of methods and techniques used in the process of teaching English language gramar in general, of modal verbs in particular and a review of the relevant literature related to the application of Web 2.0 tools. The third chapter presents the experiment conducted to illustrate the application of the suggested Web 2.0 tools in a real teaching context along with an adequate analysis of the collected results. The conclusions drawn from the collected and analysed results are presented in the fourth chapter. In order to support the conclusions, apart from the data collected in the experiment, another set of data collected from a questionnaire completed by the participants in the experiment has been provided in this chapter. Finally, a section on practical suggestions related to a broader application of Web 2.0 tools in ELT has also been included here. Based on this research, the hypothesis defined at the beginning of this doctoral thesis could be confirmed completely. The basic hypothesis that Web 2.0 tools as one type of technology used in the ELT process, that this process can be improved considerably and that the performance of the students can be furthered could be confirmed as well. Moreover, it could be confirmed that due to being accessible and easy to use, Web 2.0 tools can be incorporated in the ELT process rather quickly and easily, thus contributing to the improvement of the process and facilitate student performance in all areas of contemporary English language. Based on this doctoral thesis, especially on the segment included in the research, it has been possible to identify and define several critical points related to the application of Web 2.0 tools. The collected results and the conclusions drawn from them may serve as an incentive in the further development of a system of application of technology in ELT in a broader and wider sense." ]
application/pdf
sr
Универзитет у Нишу, Филозофски факултет
[ "" ]
[ "openAccess" ]
[ "" ]
Универзитет у Нишу
[ "unapređenje nastave", "nastava uz primenu računara", "alati Veb 2.0", "gramatika", "modalni glagoli" ]
[ "improvement of teaching", "computer-assisted language learning", "Web 2.0 tools", "grammar", "modal verbs" ]
[ "Mogućnost primene tehnologije Veb 2.0 u nastavi gramatike engleskog jezika" ]
[ "" ]
doctoralThesis
[ "Autorstvo-Deliti pod istim uslovima 3.0 Srbija (CC BY-SA 3.0)" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151945/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/155711/Djordjevic_Jasmina.pdf", "https://fedorani.ni.ac.rs/fedora/get/o:1883/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21711" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/11571
123456789-11571.pdf
yes
no
https://nardus.mpn.gov.rs/bitstream/id/37685/Disertacija.pdf
no
Morfološka varijabilnost vrsta roda Anacamptis Rich. (Orchidoideae, Orchidaceae) na području Balkanskog poluostrva i Panonske nizije
Morphological variability of species of the genusAnacamptis Rich. (Orchidoideae, Orchidaceae) in the Balkan Peninsula and the Pannonian Plain
[ "Anačkov, Goran" ]
[ "Igić, Ružica", "Anačkov, Goran", "Lakušić, Dmitar", "Alegro, Antun", "Jogan, Nejc" ]
Radak, Boris
2019-12-23T16:36:36
[ "2019-12-23T16:36:36", "2020-07-03T13:41:28" ]
2019-11-04
[ "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija156802259457966.pdf?controlNumber=(BISIS)111130&fileName=156802259457966.pdf&id=13365&source=NaRDuS&language=sr", "https://nardus.mpn.gov.rs/handle/123456789/11571", "https://www.cris.uns.ac.rs/record.jsf?recordId=111130&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije156802261515636.pdf?controlNumber=(BISIS)111130&fileName=156802261515636.pdf&id=13366&source=NaRDuS&language=sr" ]
[ "Pored rodova evropskih orhideja koji se odlikuju velikim stepenom diverzifikacije, kao i značajnim brojem novoopisanih vrsta, kao što su Ophrys ili Epipactis, rod Anacamptis je ostao poprilično zapostavljen u orhidološkim istraživanjima. Na predstavnicima ovog roda uglavnom su vršena molekularna istraživanja, u kojima je bio uključen i veći broj drugih rodova.Takođe, urađene su i opsežne studije, ali samo na pojedinim vrstama. Morfološka istraživanja su bila veoma retka i uz par uzuzetaka, ograničena na geografski mala područja i na jednu ili nekoliko morfološki sličnih vrsta. Analiza morfološke varijabilnosti ovolikog broja taksona roda Anacamptis na geografski relativno velikom području kakvo je Balkansko poluostrvo, kao i deo Panonske nizije koji se oslanja na njega, do sada nije bilo sprovedeno. Morfološkim analizama bili su podvrgnuti gotovo svi predstavnici ovog roda u rangu vrste i podvrste, a koji se javljaju na području kopnenog dela Balkanskog poluostrva, kao i južnog oboda Panonske nizije. Sprovedene su jednostrane i uporedne morfološke analize sa detaljnomobradom podataka metodama bazične, univarijantne i multivarijantne statistike. Do sada najvećim istraživanjem taksona roda Anacamptis, po broju obrađenih jedinki i području na kom je sprovedeno, bila je obuhvaćena 2001 jedinka iz 185 populacija. Analizirane su prirodne populacije, ali i materijal iz Herbarijuma BUNS. Ukupno je definisano 69 morfoloških karaktera, kvantitativnih i kvalitativnih, a među njima su traženi oni koji imaju potencijalno diferencijalni karakter između opisanih vrsta i infraspecijskih taksona. Analize su obuhvatile i interpopulacionu morfološku varijabilnost u okviru svakog taksona, a u cilju uočavanja postojanja određenih geografskih obrazaca njenih promena. Morfološki karakteri koji su se u sprovedenim analizama pokazali kao taksonomski informativni, iskorišćeni su za formiranje dihotomog ključa za determinaciju taksona roda Anacamptis prisutnih na istraživanom području. Analizama je utvrđen veliki broj karaktera koji su statistički značajno različiti između analiziranih populacija, podvrsta i vrsta. Većina karaktera je pokazala umerenu ili nisku varijabilnost, a u retkim slučajevima i povećanu. Karakteri cveta međusobno su statistički značajno korelisani,većina slabo do umereno, dok su oni na listićima kacige, kao i između labeluma i drugih delova cveta jako do izrazito jako povezani. Jedini takson koji nije pokazao nikakvu infraspecijsku diferencijaciju, a koji se odlikuje velikom unutari interpopulacionom varijabilnošću je A. pyramidalis. Iz istog razloga je pokazano kao neosnovano izdvajanje jedinki iz različitih delova njegovog areala u do sada opisane infraspecijske oblike. Potvrđena je niska morfološka varijabilnost uskorasprostranjene vrste A. boryi. Kod svih preostalih istraživanih taksona utvrđeno je postojanje određenih obrazaca geografske interpopulacione varijabilnosti i infraspecijske struktuiranosti.Populacije A. laxiflora subsp. laxiflora mogu se podeliti na jadranske i kontinentalne, pri čemu najzapadnije pokazuju i najmanje vrednosti analiziranih karaktera. A. coriophora subsp. fragrans se pokazala kao manje varijabilnom od tipske podvrste, ali je u okviru nje kao zaseban takson izdvojen var. hermae kao fenološki, ekološki i morfološki odvojen u odnosu na ostaleispitivane populacije. Tipska podvrsta pokazuje obrazac variranja ukupne morfološke varijabilnosti u pravcu zapad-istok. Kao karakteri koji su najznačajniji za diferencijaciju podvrsta vrste A. palustris izdvojeni su dužina i širina brakteje, stepen diferenciranosti labeluma na režnjeve, kao i dubina sinusa koja ih razdvaja. Populacije A. palustris subsp. elegans moguće je podeliti na tri geografski i morfološki definisane grupe – istočnobalkansku, zapadnobalkansku i periferne populacije sa severa Srbije i iz Slovenije. Kao diferencijalni karakteri između taksona sekcije Laxiflorae pokazali su se odnos između dužine plodnika i brakteje, kao i dužina srednjeg režnja labeluma. Vrsta A. morio je po prvi put jasno morfološki i arealno podeljena na dve podvrste na istraživanom području. Podvrste pokazuju velika preklapanja vrednosti morfoloških karaktera, ali se obe odlikuju specifičnim karakteristikama cveta, pre svega labeluma na osnovu kojih ih je moguće razlikovati. Definisani su areali podvrsta A.morio na istraživanom području – tipska podvrsta je prevashodno severnija i zapadnija, dok je subsp. caucasica južnija i istočnija. Prvu odlikuju krupniji cvetovi, bubrežastih labeluma sa srednjim režnjem koji ne prevazilazi značajno dužinu bočnih, dok je druga sa sitnijim cvetovima i snažno isturenim srednjim režnjem. Obe podvrste mogu se podeliti na grupe populacija sa jasno definisanim geografskim raspostranjenjem. Vrsta A. papilionacea je po prvi put morfološki istaživana na većem broju primeraka, a ne prostim poređenjem pojedinačnih primeraka iz različitih delova areala. Pokazana je morfološka diferenciranost na dve podvrste – tipsku i subsp. aegaea, koje se jasno morfološki razlikuju i zauzimaju različite delove areala vrste. U okviru subsp. papilionacea registrovan je klinalni raspored morfološke varijabilnosti u pravcu sever-jug. Registrovana su i tri hibrida, nova za područje pojedinih zemalja – A. × gennarii (Severna Makedonija),A. × parvifolia (Crna Gora) i A. × timbali (Srbija). Hibridi pokazuju generalnu morfološku intermedijarnost u odnosu na roditelje, ali se odlikuju i novim stanjima karaktera, nezabeleženim kod roditeljskih taksona. Slični obrasci morfološke varijabilnosti, kako na interpopulacionom nivou pojedinih vrsta, ali iizmeđu podvrsta svake istraživane vrste, pokazuju jasnu vezu između istraživanih taksona i još jednom opravdavaju njihovo zajedničko grupisanje u rod Anacamptis." ]
[ "Unlike the highly diversified and species-rich genera of European orchids, such as Ophrys or Epipactis, the genus Anacamptis has remained quite neglected in orchidological research. Representatives of this genus, together with many others genera, were investigated mainly by molecular methods. Also, extensive studies have been done, but only on specific species. Morphological studies were very rare, and with a few exceptions, limited to geographically small areas and one or more morphologically similar species. Analysis of the morphological variability of so many taxa of the genus Anacamptis, in a is, in a geographically relatively large area such as the Balkan Peninsula, as geographically relatively large area such as the Balkan Peninsula, as well as the southern part of the Pannonian Plain, has not been conducted so far. Morphological analyses were performed on almost all representatives of this genus,in the species and subspecies rank , occurring in the Balkan Peninsula mainland, as well as in the southern perimeter of the Pannonian Plain. Comparativemorphological analyses were conducted using the methods of basic, univariate and multivariate statistics.So far, the largest study of the genus nacamptis, by the number of processed individuals and the area in which it was conducted, included 2001 individuals from 185 populations. Natural populations and material from the BUNS Herbarium were analyzed. A total of 69 morphological characters, quantitative and qualitative, were defined, and those that have a potentially differential character among analyzed species and infraspecific taxa were selected. The analyzes also included interpopulation morphological variability within each taxon, to identify the existence of specific geographic patterns of its changes. The morphological characters that proved to be taxonomically informative, were used to form the dichotomous key for the determination of the genus Anacamptis members, presented in the study area. The analyzes identified a large number of characters that were statistically significantly different between the analyzed populations, subspecies, and species. Most of the characters showed moderate or low variability, and in rare cases increased variability. Flower’s characters were statistically significantly correlated with each other, most of them weakly to moderately, while those of the sepals and petals, as well as between the labellum and other parts of the flower, were very strongly correlated. The only taxon that has not shown any infraspecific differentiation (except A. boryi), and which is characterized by high intra- and interpopulation variability, is A. pyramidalis. For the same reason, it has been shown as unjustified to separate individuals from different parts of species range into infraspecific forms. The low morphological variability of the narrowly distributed A. boryi was confirmed. In all other taxa studied, the existence of certain patterns of geographical interpopulation variability and infraspecific structuring was detected. A. laxiflora subsp. laxiflora populations can be divided into two groups – Adriatic and Continental, with the lowest characters values measured among the westernmost populations. A. coriophora subsp. fragrans proved to be less variable than the type subspecies, but within it, a new variety (var. hermae) as phenological, ecological and morphologically distinct from other studied populations was described. The typesubspecies has a transition of morphological variability in a west-east direction. The characters that are the most important for differentiation of A. palustris subspecies are the bract length and width, the degree of labellum differentiation into lobes, and the depth of the sinuses that separate them. Populations of A. palustris subsp. elegans can be divided into three geographically and morphologically defined groups – Eastern Balkan, Western Balkan and peripheral populations from the North Serbia and Slovenia. Differential characters among the Laxiflorae section taxa are ration between the ovary length and bract length, as well as the labellum middle lobe length. For the first time, species A. morio is morphologically and geographically divided into two subspecies, in the study area. Analyzed subspecies have great overlapping values for many morphological characters, but both are characterized by specific flower’s characteristics, above all labellum shape. On this basis, it is possible to distinguish them. Areals of A. morio subspecies were defined – the type subspecies is predominantly northern and western,while subsp. caucasica is southern and eastern. The first is characterized by larger flowers, renal shape labellum with a median lobe that does not exceed significantly the length of the lateral ones, while the second subspecies has smaller flowers and strongly projecting the median lobe. Both subspecies can be divided into groups of populations that have clearly defined geographical distribution. For the first time, A. papilionacea was morphologically investigated on a larger number of specimens, unlike previous researches in which individual specimens from different parts of the range were simply compared. Morphological differentiation into two subspecies was shown – type and subsp. aegaea. They are morphologically distinct and occupy different parts of the species range. Within the subsp. papilionacea a clinal distribution of morphological variability in the north-south direction was recorded. Three taxa of hybrid origin, new for the area of North Macedonia (A. × gennarii), Montenegro (A. × parvifolia) and Serbia (A. × timbali) were registered. Hybrids exhibit a general morphological intermediacy between parents but are also distinguished by new character states that were not observed in parental taxa. Similar patterns of morphological variability, both at the interpopulation level ofindividual species and between the subspecies of each species studied, show a clear relationship between the studied taxa and once again justify their grouping into the genus Anacamptis." ]
sr (latin script)
Универзитет у Новом Саду, Природно-математички факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173030/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Новом Саду
[ "Anacamptis", "taksonomija", "linearna morfometrija", "interspecijska varijabilnost", "infraspecijska varijabilnost" ]
[ "Anacamptis", "taxonomy", "linear morphometry", "interspecific variability", "infraspecific variability" ]
[ "Morfološka varijabilnost vrsta roda Anacamptis Rich. (Orchidoideae, Orchidaceae) na području Balkanskog poluostrva i Panonske nizije" ]
[ "Morphological variability of species of the genusAnacamptis Rich. (Orchidoideae, Orchidaceae) in the Balkan Peninsula and the Pannonian Plain" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "https://nardus.mpn.gov.rs/bitstream/id/37686/IzvestajKomisije.pdf", "http://nardus.mpn.gov.rs/bitstream/id/37685/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/37685/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/37686/IzvestajKomisije.pdf", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija156802259457966.pdf?controlNumber=(BISIS)111130&fileName=156802259457966.pdf&id=13365&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11571" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
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[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21712
123456789-21712.pdf
yes
no
https://fedorani.ni.ac.rs/fedora/get/o:1896/bdef:Content/download
no
Transformacija medija i uticaj novih tehnologija na informisanje
[ "Radović, Vladeta" ]
[ "Milinkov, Smiljana", "Mihajlov Prokopović, Anka" ]
Dojčinović, Milan
2023-09-06T14:49:22
[ "2023-09-06T14:49:22" ]
2022
[ "http://eteze.ni.ac.rs/application/showtheses?thesesId=8606", "https://fedorani.ni.ac.rs/fedora/get/o:1896/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/111963401", "https://nardus.mpn.gov.rs/handle/123456789/21712" ]
[ "" ]
[ "The subject of the research is funded on two levels. At the first level, the gradual transformation of the media and the evolution of information and communication systems are described, from the forerunner of newspapers, the Roman wall proclamations Acta Diurna until possible further transformation - holographic media. The transformation and evolution of the media has been described through key historical moments and epochs of media development, with lesser known non-commercial media, such as radio faximil, Telphone Hirmondo, Viewtron technology of the 1980s, Tablet Newspaper, etc. Based on the description of conceptual, and partly so far known serial technological innovations, the paper describes the possible further development of the media in the next two decades. The author sees a further direction of media transformation in connecting digital technologies and the Internet with hologram technology, virtual reality and new generations of mobile networks, like 6G, 7G etc. standards. On the concepts of already known patents Microsoft HoloLens, Apple iGlass, Google AR Lens, the author describes possibility of media application and further evolution based on smart glasses, VR (Virtual Reality) helmet, in a way that we will use media in the future as holographic windows projected via holographic sensor built into a smartphone, smartwatch, smart glasses or laptop. At the second level of research aim, the author emphasizes the importance of information entropy, a term bassicaly known from physics and cybernetics, written by Norbert Wiener, in sense of large amount of informations and news created by Internet flow, which creates a false sense of good informing based on the number of daily received and read informations. The author finds a theoretical basis for this standpoint in the writings of Francois Le Coadic, Norbert Wiener and Alvin Toffler, who wrote about the \"information overload\" back in the 1970s. In the modern theory of media and information, Eli Pariser's theory of \"Echo chambers\" is also marked, as a uniform circle of information to which Internet users are exposed as a consequence of the information economy. In addition to the theoretical framework, the author re-actualizes and reconceptualizes some of the most significant media theories and studies on a theoretical-empirical basis, such as Lev Manovich's study of new media, Marshall McLuhan's technological determinism, and Roger Fiedler's study of media transformation. Based on a case study, multiple analyzes of content and questionnaire realized on the student population, the author scrutinizes media phenomena, and media theories set in the age of analog media puts in the context of digital media offering a new theoretical framework for understanding modern media, media persuasion, manipulation, informing in modern era, but also in the foreseeable future." ]
application/pdf
sr
Универзитет у Нишу, Филозофски факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Нишу
[ "Digitalni mediji", "hologramski mediji", "novi mediji", "informacije", "informacione tehnologije", "informaciona entropija", "eho komore", "informaciono društvo", "informaciona ekonomija" ]
[ "Digital media", "holographic media", "new media", "information", "information technologies", "information entropy", "echo chambers", "information society", "information economy" ]
[ "Transformacija medija i uticaj novih tehnologija na informisanje" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151943/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/155712/Dojcinovic_Milan_N.pdf", "https://fedorani.ni.ac.rs/fedora/get/o:1896/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21712" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/21713
123456789-21713.pdf
yes
no
https://fedorani.ni.ac.rs/fedora/get/o:1898/bdef:Content/download
no
Roditeljske i neroditeljske figure privrženosti kao prediktori emocionalne inteligencije dece
[ "Stefanović-Stanojević, Tatjana" ]
[ "Tošić-Radev, Milica", "Marković, Emilija", "Tutnjević, Slavica" ]
Lazović, Nataša R.
2023-09-06T14:49:22
[ "2023-09-06T14:49:22" ]
2022
[ "http://eteze.ni.ac.rs/application/showtheses?thesesId=8608", "https://fedorani.ni.ac.rs/fedora/get/o:1898/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/115010057", "https://nardus.mpn.gov.rs/handle/123456789/21713" ]
[ "" ]
[ "The main aims of this research were to determine whether the level of emotional intelligence as a trait in children can be predicted based on the attachment to parental and non-parental figures (teachers and peers) (first and second aim), as well as to determine whether attachment to teachers and peers is a statistically significant mediator in the link between attachment to parents and children's emotional intelligence (third and fourth aim). Another aim was to examine whether the child’s gender, teacher’s gender, personality traits and mentalization capacity of teachers are moderators between attachment towards parental figures and attachment of the child for the teacher (fifth aim). One objective also aimed to examine whether the child gender is a moderator of the connection between attachment to parental figures and the attachment of the child to peers (sixth aim). The ultimate objective was to include potential moderators in the final model based on the results of the empirical validation of the assumed model and previous mediation and moderation analyzes (gender of the child and teacher, teacher personality and mentalization) and, if necessary, to revise and empirically verify alternative models of the connection between attachment to parents and emotional intelligence traits, as well as non-parental figures of attachment (teachers and peers). The sample included 354 students of the third and fourth grade of primary school (9 to 11 years old) as well as 38 teachers (AS=49.71; SD=7.06). The instruments used in the research were - for children: The Experiences in Close Relationships Scale-Revised (ECR-RC; Brenning et al., 2011), The Inventory of Parent and Peer Attachment - the part related to the relationship with peers (IPPA; Armsden & Greenberg, 1987), Attachment to Teachers Scale (CAQ; Parish, 2000, adapted by Krstić, 2015) and the Trait Emotional Intelligence Questionnaire - a version of the questionnaire designed for children (TEIQue-CF; Banjac et al., 2016). The teachers filled out the Big Five Plus Two questionnaire (VP+2: Smederevac et al., 2010), the Mentalization Capacity Assessment Scale (MentS; Dimitrijević et al., 2018), as well as a sociodemographic questionnaire compiled for research purposes. The main assumption that the relationship with parents will be mediated by attachment to non-parental figures (teachers and peers) was confirmed. The results showed that non-parental figures are important for the formation of emotional intelligence in children, and the hypothesis about the mediating role of the child’s gender, teacher’s gender, personality traits and mentalization capacity of the teacher was partially confirmed." ]
application/pdf
sr
Универзитет у Нишу, Филозофски факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Нишу
[ "afektivna vezanost (dimenzije anksioznosti i izbegavanja)", "emocionalna inteligencija", "roditelji", "učitelji", "vršnjaci", "odnos s vršnjacima", "srednje detinjstvo", "predadolescencija" ]
[ "attachment (dimension of anxiety and avoidance)", "emotional intelligence", "children", "parents", "teachers", "peers", "relationship with peers", "middle childhood", "preadolescence" ]
[ "Roditeljske i neroditeljske figure privrženosti kao prediktori emocionalne inteligencije dece" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151944/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/155717/Natasa_Lazovic_R.pdf", "https://fedorani.ni.ac.rs/fedora/get/o:1898/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21713" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/9968
123456789-9968.pdf
yes
no
http://nardus.mpn.gov.rs/bitstream/id/40951/Disertacija17687.pdf
no
Strukturna i fotokatalitička svojstva sistema na bazi modifikovanih slojevitih hidroksida i oksida titana
Structural and photocatalytic characteristics of systems based on modified layered hydroxides and titanium oxide
[ "Vulić, Tatjana" ]
[ "Marinković-Nedučin, Radmila", "Vulić, Tatjana", "Jovanović, Dušan", "Nikolić, Aleksandar", "Šećerov-Sokolović, Radmila" ]
Hadnađev-Kostić, Milica
2020-07-03T13:56:37
[ "2020-07-03T13:56:37" ]
2013-08-26
[ "https://nardus.mpn.gov.rs/handle/123456789/9968", "https://www.cris.uns.ac.rs/DownloadFileServlet/DisertacijaHadnadjevKosticDr.pdf?controlNumber=(BISIS)83240&fileName=HadnadjevKosticDr.pdf&id=566&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/record.jsf?recordId=83240&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije147073140826782.pdf?controlNumber=(BISIS)83240&fileName=147073140826782.pdf&id=6688&source=NaRDuS&language=sr" ]
[ "Usled visoke fotokatalitičke efikasnosti u procesima prečišćavanja voda i vazduha, titan(IV)-oksid (TiO2) se u poslednje vreme sve više ispituje u oblasti zaštiti životne okoline. Međutim usled visokih zahteva koje fotokatalizatori u ovoj oblasti treba da zadovolje, kao što su aktivnost, selektivnost, netoksičnost, ekonomičnost i stabilnost, potreba za razvojem fotokatalizatora sa povoljnijim karakteristikama se sve više nameće kao prioritet za buduća istraživanja. Inovativni pristup ove doktorske disertacije je usmeren upravo ka razvoju novih kompleksnih sistema na bazi oksida titana i slojevitih hidroksida, osvrćući se na postavljenu polaznu hipotezu o mogućem sinergetskom efektu komponenata u dostizanju visoke fotokatalitičke efikasnosti, kao i u poboljšanju njihovih opštih katalitičkih performansi. ZnAl i NiAl slojeviti hidroksidi su izabrani kao nosači aktivne komponente (TiO2). Modifikacija postojećih metoda sinteze je izvršena kako bi se pospešila interakcija aktivne komponente i nosača. Komparativna istraživanja novonastalih materijala pripremljenih primenom četiri nove metode sinteze pokazala su da se izborom metodologije sinteze i prirode interakcije između aktivne faze TiO2 i aktivnog nosača mogu poboljšati fotokatalitičke performanse kompozitnih materijala u odnosu na referentne vrednosti dobijene za ZnAl slojevite hidrokside. Iako je udeo TiO2 veoma mali u novonastalim kompleksnim sistemima, fotokatalitička efikasnost razgradnje model polutanta je zadovoljavajuća, usled poboljšane dostupnosti aktivnih centara i usled limitiranja aglomeracije TiO2. Potvrđeno je da metoda i uslovi sinteze bitno utiču na strukturu, teksturu i površinske karakteristike formiranih kompozita, uz rezultujuće značajne razlike i u fotokatalitičkim svojstvima sintetisanih materijala. Komparativna ispitivanja fotokatalitičke efikasnosti uz primenu odabranih test reakcija (razgradnje metilenskog plavog, rodamina B i metil oranža) pokazala su da uzorci sintetisani metodom impregnacije u baznoj sredini pokazuju najbolje fotokatalitičke performanse u širem spektru zračenja, što je pripisano formiranju faza ZnO i ZnTiO4 u ovim uslovima, detektovanih XRD, FTIR i XPS analizama. Takođe, mikrobiološke analize na antimikrobno dejstvo su pokazale da, iako TiO2 ne pokazuje inhibitoran efekat, uzorci sintetisani impregnacijom u baznoj sredini imaju i najizraženiji inhibitorni efekat na rast gram-pozitivnih i gram-negativnih bakterija, što dodatno ukazuje na doprinos sinergetskog efekta slojevitih oksida i aktivne faze mešovitih oksida u formiranju aktivnih centara visoke fotokatalitičke aktivnosti. Uzorci dobijeni primenom metoda koprecipitacije pokazuju nižu, ali zadovoljavajuću fotokatalitičku aktivnost, dok uzorci sintetisani metodom impregnacije u neutralnoj sredini pokazuju najnižu fotokatalitičku aktivnost i mali inhibitorni efekat. Istraživanja u ovoj doktorskoj disertaciji dala su doprinos novim saznanjima o karakteristikama kompozitnih materijala tipa TiO2/ZnAl slojeviti hidroksidi bitnim za obezbeđenje fotokatalitičke aktivnosti materijala ovog tipa u širem spektru zračenja (UV/VIS), kao i ukupnih performansi koje omogućuju njihovu primenu u različitim ekološkim procesima (prečišćavanje vode i vazduha od organskih, neorganskih i bioloških polutanata)." ]
[ "Recently, titanium-dioxide (TiO2) has been extensively researched in the field of environmental protection due to its high photocatalytic efficiency in processes for water and air purification. Considering the high demands that are constantly set for photocatalysts in this field of research, such as activity, selectivity, stability, cost-effective and non-toxic, the need to develop photocatalysts with better characteristics is becoming increasingly evident as a priority for future research. The novel approach of this Ph.D. thesis is oriented towards the development of new complex systems on the basis of titanium-dioxide and layered double hydroxides, taking into account the hypothesis about their possible synergetic effect achieving high photocatalytic efficiency and obtaining better overall catalytic performances. ZnAl and NiAl layered double hydroxides have been chosen as the catalyst support of the active component (TiO2). In order to initiate the interaction between the active component and support, current synthesis methods have been modified. The novel materials were synthesized using four new different synthesis methods. Comparative investigation showed that the synthesis method, as well as the nature of the interaction between the active phase and the support can improve the overall photocatalytic performances of the composite materials when compared to the referent values obtained from ZnAl layered double hydroxides. Although the TiO2 amount is low in the novel complex systems, photocatalytic efficiency for the degradation of model pollutants is satisfactory due to improved accessibility to the active centres, as well as due to limitation of TiO2 agglomeration. It was confirmed that the synthesis method and conditions considerably affect the structural, textural and surface characteristics of the formed composites, resulting in significant differences in photocatalytic characteristics of the synthesized materials. Comparative research of photocatalytic efficiency in the chosen test reactions (methylene blue, rhodamine B, and methyl orange degradation) showed that the samples synthesized by the wet impregnation method in alkaline solution exhibited the best photocatalytic performance in the wide range of radiation that attributed to the formation of ZnO phase and ZnTiO4 detected by XRD, FTIR and XPS analysis. Also, the research on the antimicrobial activity showed that, although TiO2 has no inhibitory effect, the samples synthesized by the wet impregnation method in alkaline solution have the highest inhibitory effect on the growth of gram-positive and gram-negative bacteria, confirming the contribution of the synergic effect to the formation of active centres with high photocatalytic activity. The samples obtained by the coprecipitation method had lower, but satisfactory photocatalytic activity, while samples synthesized by the wet impregnation method in water solution showed the lowest photocatalytic activity, as well as low inhibitory effect on the bacteria growth. The research in this Ph.D. thesis contributed to the knowledge on the characteristics of novel composite materials TiO2/ZnAl layered hydroxides that are of essential importance concerning their photocatalytic activity in the wide range of radiation (UV / VIS), as well as their overall performance that enable their use in a variety of ecological processes, such purification of water and air pollution from organic, inorganic and biological pollutants." ]
application/pdf
sr (latin script)
Универзитет у Новом Саду, Технолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Новом Саду
[ "slojeviti hidroksidi", "titan(IV)-oksid", "poluprovodnici", "fotokataliza", "zaštita životne okoline" ]
[ "Layered hydroxides", "titanium dioxides", "semiconductors", "photocatalysis", "environmental protection" ]
[ "Strukturna i fotokatalitička svojstva sistema na bazi modifikovanih slojevitih hidroksida i oksida titana" ]
[ "Structural and photocatalytic characteristics of systems based on modified layered hydroxides and titanium oxide" ]
doctoralThesis
[ "BY-NC-ND" ]
Вулић, Татјана; Маринковић-Недучин, Радмила; Јовановић, Душан; Николић, Aлександар; Шећеров-Соколовић, Радмила; Вулић, Татјана; Хаднађев-Костић, Милица; Структурна и фотокаталитичка својства система на бази модификованих слојевитих хидроксида и оксида титана; Структурна и фотокаталитичка својства система на бази модификованих слојевитих хидроксида и оксида титана;
[ "http://nardus.mpn.gov.rs/bitstream/id/40951/Disertacija17687.pdf", "http://nardus.mpn.gov.rs/bitstream/id/40952/IzvestajKomisije17687.pdf", "https://nardus.mpn.gov.rs/bitstream/id/40952/IzvestajKomisije17687.pdf", "https://nardus.mpn.gov.rs/bitstream/id/40951/Disertacija17687.pdf", "https://www.cris.uns.ac.rs/DownloadFileServlet/DisertacijaHadnadjevKosticDr.pdf?controlNumber=(BISIS)83240&fileName=HadnadjevKosticDr.pdf&id=566&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_9968" ]
[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/21709
123456789-21709.pdf
yes
no
https://fedorani.ni.ac.rs/fedora/get/o:1899/bdef:Content/download
no
Lateralna dominantnost, promenljivost mišićne sile i aktivacija motornih jedinica kod unilateralnih i bilateralnih sportova
[ "Stanković, Daniel" ]
[ "Stanković, Ratko", "Pantelić, Saša", "Nedeljković, Aleksandar" ]
Petrović, Ivana D.
2023-09-06T14:49:00
[ "2023-09-06T14:49:00" ]
2022
[ "http://eteze.ni.ac.rs/application/showtheses?thesesId=8609", "https://fedorani.ni.ac.rs/fedora/get/o:1899/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/115023625", "https://nardus.mpn.gov.rs/handle/123456789/21709" ]
[ "" ]
[ "Aim: The aim of this study was to determine the differences in muscle force control and motor unit activation between dominant and non-dominant lower extremity within and between groups of unilateral and bilateral sports, as well as to determine differences in muscle force control and motor unit activation depending on the characteristics of unilateral and bilateral sports. Methods: Thirty six young adults performed low to moderate isometric contractions (2.5, 5, 10, 20, 30, 40, 50 and 60% of maximal voluntary contraction, MVC), dominant and non-dominant lower limb, at three different ankle angles (75°, 90°: anatomical position and 105°), which corresponds to the short, medium and long length of the anterior part of the tibialis muscle. At the same time, the discharge characteristics of several motor units in tibialis anterior were recorded. Results: There are no statistically significant differences in muscle control and motor units activation between the dominant and non-dominant extremities in the unilateral group of athletes. In a bilateral group of athletes, there is no statistically significant difference in muscle force control between the extremities, but there is in a variable that defines the activation of motor units. The mean value of the motor unit discharge was discharged at lower values in the non-dominant leg compared to the dominant one, except at the force level of 30% MVC. In muscle force control, there is a statistically significant difference between the unilateral and bilateral group of athletes, where the bilateral group of athletes exhibits greater force variability of 2.5%, while the unilateral group of athletes exhibits greater force variability of 60% and greater effective force at all levels of power in relation to the bilateral group. In the activation of motor 7 units, the bilateral group of athletes shows higher values of relative and absolute amplitude of variability of the interspike interval of the motor unit in both extremities at all levels of force and at all muscle lengths compered to unilateral, while the average value of motor unit discharge in the dominant leg was volatile at force levels of 2.5 to 30% MVC. Finally, runners exhibit greater absolute variability of force and mean discharge rate of motor units in both extremities compared to cyclists, while volleyball players exhibit greater relative and absolute variability of force in both extremities compared to weightlifters and rowers, as well as higher values of mean discharge rate of motor units in the dominant leg. Conclusion: There is no difference in the control of muscle force between the lower extremities in healthy athletes. There is a tendency that the training process may influence the different effects of neural control of the CNS between the extremities in sports with excessive use of one side of the body. Finally, the results showed that the requirements of sport specificity affect the change in muscle force control and CNS neurocontrol. Additional research is needed to confirm these results and expand knowledge about the impact of the training process on muscle force control and motor unit behavior in other sports." ]
application/pdf
sr
Универзитет у Нишу, Факултет спорта и физичког васпитања
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Нишу
[ "dominantnost", "motorns jedinica", "prednji tibijalni mišić", "promenljivost sile", "EMG visoke gustine" ]
[ "Dominance", "Force Variability", "High-density EMG", "Motor Unit", "Tibialis Anterior" ]
[ "Lateralna dominantnost, promenljivost mišićne sile i aktivacija motornih jedinica kod unilateralnih i bilateralnih sportova" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/151947/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/155723/Petrovic_Ivana_D.pdf", "https://fedorani.ni.ac.rs/fedora/get/o:1899/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_21709" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/11101
123456789-11101.pdf
no
no
http://nardus.mpn.gov.rs/bitstream/id/37618/Disertacija.pdf
no
Isolation and characterization of Cr(VI) tolerant soil bacteria
Izolacija i karakterizacija Cr(VI) tolerantnih zemljišnih bakterija
[ "Radnović, Dragan" ]
[ "Agbaba, Jasmina", "Radnović, Dragan", "Barak, Imrich", "Tamaš, Ivica", "Đurić, Simonida" ]
Tamindžija, Dragana
2019-05-30T11:17:31
[ "2019-05-30T11:17:31", "2020-07-03T13:41:14" ]
2019-05-23
[ "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija155256550044414.pdf?controlNumber=(BISIS)110336&fileName=155256550044414.pdf&id=12697&source=NaRDuS&language=sr", "https://nardus.mpn.gov.rs/handle/123456789/11101", "https://www.cris.uns.ac.rs/record.jsf?recordId=110336&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije155256562512012.pdf?controlNumber=(BISIS)110336&fileName=155256562512012.pdf&id=12698&source=NaRDuS&language=sr" ]
[ "U ovom radu ispitana je tolerantnost zemljišnih bakterija na šestovalentni hrom (Cr(VI)). Prvo, ispitan je uticaj visokog nivoa hroma antropogenog i geogenog porekla na kultivabilnu bakterijsku zajednicu zemljišta. Dalje, izolovani su bakterijski sojevi sa visokom tolerancijom na Cr(VI) iz različitih sredinskih uzoraka kao što su zemljište, sediment, voda i otpadni materijal. Sojevi su identifikovani i određen je nivo njihove Cr(VI) tolerancije i sposobnost redukcije toksičnog Cr(VI) u manje toksični Cr(III). Odabrani sojevi Bacillus cereus grupe su dalje karakterisani – određene su njihove morfološke i biohemijske karakteristike, 16S rDNK i pycA sekvence, potencijal formiranja biofilma i otpornost na druge teške metale. Takođe, sprovedeno je detaljnije ispitivanje njihove tolerancije i redukcije Cr(VI). Soj sa najvišom otpornošću je uporedo sa kontrolnim osetljivim sojem analiziran pomoću STEM EDS na sadržaj hroma u ćelijama I endosporama u različitim uslovima. Rezultati ukazuju da su bakterije tolerantne na Cr(VI) prisutne i u sredinama sa niskim i sa visokim koncentracijama hroma. Većina izolata pripadala je B. cereus grupi što ukazuje na njenu uopšteno visoku otpornost na Cr(VI). Pojedini sojevi su pokazali visoku otpornost i sposobnost redukcije Cr(VI), što ukazuje na mogućnost njihove praktične primene u bioremedijaciji. STEM EDS analiza osetljivog B. subtilis PY79 soja i Cr(VI)- rezistentnog soja B. cereus grupe NCr1a otkrila je značajne razlike u njihovom odgovoru na Cr(VI) i sadržaju Cr u njihovim ćelijama i endosporama." ]
[ "In this study, tolerance of soil bacteria to hexavalent chromium (Cr(VI)) was investigated. First, influence of high chromium levels of anthropogenic and geogenic origin on the soil cultivable bacterial community was examined. Next, a number of bacterial strains with high Cr(VI) tolerance were isolated from diverse environmental samples such as soil, sediment, water and waste material. Strains were identified and tested for the level of Cr(VI) tolerance and the ability to reduce toxic Cr(VI) to more innocuous Cr(III). Selected Bacillus cereus group strains were further characterized - their morphological and biochemical characteristics, 16S rRNA and pycA gene sequences, biofilm formation potential and resistance to other heavy metals were determined. Also, more detailed study of their tolerance level and Cr(VI) reduction was conducted. Strain with the highest resistance together with the control chromate sensitive strain were analyzed by STEM EDS for their cellular and endospore Cr content under different conditions. Results indicate Cr(VI) tolerant bacteria are present both in low and high Cr environments. Majority of isolates belonged to the B. cereus group indicating its overall high tolerance to Cr(VI). Certain strains exhibited high tolerance and reduction ability, indicating their possible usefulness in practical bioremediation application. STEM EDS analysis of Cr(VI)-sensitive B. subtilis PY79 strain and Cr(VI)-resistant B. cereus group strain NCr1a revealed significant differences in their response to Cr(VI) and in their Cr cellular and endospore content." ]
en
Универзитет у Новом Саду, Природно-математички факултет
[ "info:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/37004/RS//", "info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/43005/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc/4.0/" ]
Универзитет у Новом Саду
[ "" ]
[ "Environmental microbiology", "Mikrobiologija životne sredine", "redukcija hromata", "bioremedijacija", "Bacillus cereus", "teški metali", "chromate reduction", "bioremediation", "Bacillus cereus", "heavy metals", "chromium", "hrom" ]
[ "Isolation and characterization of Cr(VI) tolerant soil bacteria" ]
[ "Izolacija i karakterizacija Cr(VI) tolerantnih zemljišnih bakterija" ]
doctoralThesis
[ "BY-NC" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/37619/IzvestajKomisije.pdf", "http://nardus.mpn.gov.rs/bitstream/id/37618/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/37619/IzvestajKomisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/37618/Disertacija.pdf", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija155256550044414.pdf?controlNumber=(BISIS)110336&fileName=155256550044414.pdf&id=12697&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11101" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/11087
123456789-11087.pdf
no
no
https://nardus.mpn.gov.rs/bitstream/id/37657/Disertacija.pdf
no
Translation and Transformation of Low Level Programs
Prevođenje i transformisanje programa niskog nivoa
[ "Budimac, Zoran" ]
[ "Radovanović, Miloš", "Budimac, Zoran", "Rakić, Gordana", "Radivojević, Zaharije" ]
Pracner, Doni
2019-05-16T11:43:46
[ "2019-05-16T11:43:46", "2020-07-03T13:41:23" ]
2019-04-17
[ "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija154833234227384.pdf?controlNumber=(BISIS)110184&fileName=154833234227384.pdf&id=12548&source=NaRDuS&language=sr", "https://nardus.mpn.gov.rs/handle/123456789/11087", "https://www.cris.uns.ac.rs/record.jsf?recordId=110184&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije154833239987936.pdf?controlNumber=(BISIS)110184&fileName=154833239987936.pdf&id=12549&source=NaRDuS&language=sr" ]
[ "U okviru ove teze se predstavlja pristup radu sa programima niskog nivoa koji omogućava automatsko restrukturiranje i podizanje na više nivoe. Samim tim postaje mnogo lakše razumeti logiku programa što smanjuje vreme razvoja.Proces je dizajniran tako da bude fleksibilan i sastoji se od više nezavisnih alata. Samim tim je lako menjati proces po potrebi, ali i upotrebiti razvijene alate u drugim procesima. Tipično se mogu razlikovati dva glavna koraka. Prvi je prevođenje u jezik WSL,za koji postoji veliki broj transformacija programa koje očuvavaju semantiku. Drugi su transformacije u samom WSL-u. Za potrebe prevođenja su razvijena dva alata, jedan koji radi sa podskupom x86 asemblera i drugi koji radi sa MikroJava bajtkôdom. Rezultat prevođenja je program niskog nivoa u WSL jeziku.Primarni cilj ovog istraživanja je bila potpuna automatizacija odabira transformacija, tako da i korisnici bez iskustva u radu sa sistemom mogu efikasno da primene ovaj proces za svoje potrebe. Sa druge strane zbog fleksibilnosti procesa, iskusni korisnici mogu lakoda ga prošire ili da ga integrišu u neki drugi već postojeći proces.Automatizacija je postignuta pretraživanjem usponom (eng. hill climbing).Eksperimenti vršeni na nekoliko tipova ulaznih programa niskog nivoa su pokazali da rezultati mogu biti izuzetni. Za funkciju pogodnosti je korišćena ugrađena metrika koja daje “težinu” struktura u programu. Kod ulaza za koje je originalni izvorni kôd bio dostupan, krajnje metrike najboljih varijanti prevedenih i transformisanih programa su bile na sličnom nivou. Neki primeri su bolji od originala, dok su drugi bili nešto kompleksniji. Rezultati su uvek pokazivali značajna unapređenja u odnosu na originalni kôd niskog nivoa." ]
[ "This thesis presents an approach for working with low level source code that enables automatic restructuring and raising the abstraction level of the programs. This makes it easier to understand the logic of the program, which in turn reduces the development time.The process in this thesis was designed to be flexible and consists of several independent tools. This makes the process easy to adapt as needed, while at the same time the developed tools can be used for other processes. There are usually two basic steps. First is the translation to WSL language, which has a great number of semantic preserving program transformations. The second step are the transformations of the translated WSL. Two tools were developed for translation: one that works with a subset of x86 assembly, and another that works with MicroJava bytecode. The result of the translation is a low level program in WSL.The primary goal of this thesis was to fully automate the selection of the transformations. This enables users with no domain knowledge to efficiently use this process as needed. At the same time, the flexibility of the process enables experienced users to adapt it as needed or integrate it into other processes. The automation was achieved with a hill climbing algorithm.Experiments that were run on several types of input programs showed that the results can be excellent. The fitness function used was a built-in metric that gives the “weight” of structures in a program. On input samples that had original high level source codes, the end result metrics of the translated and transformed programs were comparable. On some samples the result was even better than the originals, on some others they were somewhat more complex. When comparing with low level original source code, the end results was always significantly improved." ]
en
Универзитет у Новом Саду, Природно-математички факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-sa/4.0/" ]
Универзитет у Новом Саду
[ "Evolucija softvera", "transformacije kôda", "automatizacija transformacija", "formalne transformacije", "asembler", "bajtkôd", "Wide Spectrum Language", "MicroJava" ]
[ "Software Evolution", "Code transformations", "Automated Transformations", "Formal transformations", "assembly", "bytecode", "Wide Spectrum Language", "MicroJava" ]
[ "Translation and Transformation of Low Level Programs" ]
[ "Prevođenje i transformisanje programa niskog nivoa" ]
doctoralThesis
[ "BY-SA" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/37658/IzvestajKomisije.pdf", "http://nardus.mpn.gov.rs/bitstream/id/37657/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/37658/IzvestajKomisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/37657/Disertacija.pdf", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija154833234227384.pdf?controlNumber=(BISIS)110184&fileName=154833234227384.pdf&id=12548&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11087" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/10015
123456789-10015.pdf
yes
no
https://nardus.mpn.gov.rs/bitstream/id/41301/Disertacija.pdf
no
Namenski jezik za vizuelizaciju evaluiranu statističkom analizom malih skupova podataka
Domain specific language for visualization evaluated by the statistical analysis of small data sets
[ "Živanov, Žarko", "Gilezan, Silvia" ]
[ "Dragan, Dinu", "Rančić, Dejan", "Grgić, Zorka", "Gilezan, Silvia", "Živanov, Žarko" ]
Petrović, Veljko
2018-10-09T12:27:03
[ "2018-10-09T12:27:03", "2020-07-03T14:06:05" ]
2018-10-01
[ "https://nardus.mpn.gov.rs/handle/123456789/10015", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija153112357153867.pdf?controlNumber=(BISIS)107565&fileName=153112357153867.pdf&id=11629&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/record.jsf?recordId=107565&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije153112363924238.pdf?controlNumber=(BISIS)107565&fileName=153112363924238.pdf&id=11630&source=NaRDuS&language=sr" ]
[ "Za potrebe evaluacije kvaliteta vizuelizacije u svrhu prakse inkluzivnog dizajna razvijen je namenski jezik koji hendikepe vida opisuje kroz formalizam baziran na vizuelnim promenljivama. Namenski jezik se može koristiti kao dokumentacija, ili kao specifikacija hendikepa za posebno napisan simulator vizuelnih hendikepa koji se može koristiti za potrebe testiranja. Kao pandan ovoj tehnologiji razvijen je novi mehanizam za evaluaciju vizuelizacija koji kroz inovacije u metodologiji i statistici omogućava da se merodavni zaključci izvedu iz relativno malih uzoraka podataka." ]
[ "For purposes of visualization quality evaluation as part of the practice of inclusive design, a domain specific language was developed such that it describes visual handicaps through a formalism based on visual variables. This domain specific language can be used as documentation or as a handicap specification for a specially constructed visual handicap simulator usable for testing. Alongside this technology, a novel mechanism for visualization evalution was developed. This mechanism allows, through innovations in metholodoly and statistics, the production of trustworthy results from relatively small data sets." ]
sr (latin script)
Универзитет у Новом Саду, Факултет техничких наука
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-sa/4.0/" ]
Универзитет у Новом Саду
[ "Namenski jezici", "vizuelizacija", "poremećaji vida", "statistička analiza malih skupova podataka", "evaluacija vizuelizacija" ]
[ "Domain Specific Languages (DSL)", "visuelziation", "visual handicaps", "statisticalanalysis of small data sets", "visualization evaluation" ]
[ "Namenski jezik za vizuelizaciju evaluiranu statističkom analizom malih skupova podataka" ]
[ "Domain specific language for visualization evaluated by the statistical analysis of small data sets" ]
doctoralThesis
[ "BY-SA" ]
Живанов, Жарко; Гилезан, Силвиа; Гилезан, Силвиа; Ранчић, Дејан; Гргић, Зорка; Живанов, Жарко; Драган, Дину; Петровић, Вељко; Наменски језик за визуелизацију евалуирану статистичком анализом малих скупова података; Наменски језик за визуелизацију евалуирану статистичком анализом малих скупова података;
[ "http://nardus.mpn.gov.rs/bitstream/id/41301/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/41301/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/41302/IzvestajKomisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/41302/IzvestajKomisije.pdf", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija153112357153867.pdf?controlNumber=(BISIS)107565&fileName=153112357153867.pdf&id=11629&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_10015" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/7583
123456789-7583.pdf
yes
no
http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija14722102875439.pdf?controlNumber=(BISIS)101692&fileName=14722102875439.pdf&id=6759&source=NaRDuS&language=sr
no
Razvoj funkcionalnog modela organizacionog dizajna industrijskih sistema
Development of a functional model of organizational design of industrial systems
[ "Marić, Branislav" ]
[ "Ćosić, Ilija", "Maksimović, Rado", "Grubić-Nešić, Leposava", "Miladinović, Ljubomir", "Marić, Branislav" ]
Aleksić, Sreto
2017-02-20T10:25:07
[ "2017-02-20T10:25:07", "2020-07-03T14:05:43" ]
2016-12-05
[ "https://nardus.mpn.gov.rs/handle/123456789/7583", "http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija14722102875439.pdf?controlNumber=(BISIS)101692&fileName=14722102875439.pdf&id=6759&source=NaRDuS&language=sr", "http://www.cris.uns.ac.rs/record.jsf?recordId=101692&source=NaRDuS&language=sr", "http://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije147221036459445.pdf?controlNumber=(BISIS)101692&fileName=147221036459445.pdf&id=6760&source=NaRDuS&language=sr" ]
[ "U radu se proučavaju osnovne karakteristike organizacije kao i njenih struktura koje na indirektan načinu utiču na model organizacionog dizajna industrijskih sistema. U modelu je prikazana povezanost elemenata organizacionog dizajna sa karakteristikama zaposlenih i karakteristikama organizacije" ]
[ "Paper includes studying the basic characteristics of organization as well its structures that indirectly affect the model of organizational design of industrial systems. Model shows connection between the elements of organizational design with the characteristics of employees and the characteristics of the organization" ]
sr (latin script)
Универзитет у Новом Саду, Факултет техничких наука
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc/4.0/" ]
Универзитет у Новом Саду
[ "Organizacija", "organizacione strukture", "organizacioni dizajn" ]
[ "Organization", "organizational structure", "dimensions", "organizational design" ]
[ "Razvoj funkcionalnog modela organizacionog dizajna industrijskih sistema" ]
[ "Development of a functional model of organizational design of industrial systems" ]
doctoralThesis
[ "BY-NC" ]
Марић, Бранислав; Максимовић, Радо; Ћосић, Илија; Грубић-Нешић, Лепосава; Марић, Бранислав; Миладиновић, Љубомир; Aлексић, Срето; Развој функционалног модела организационог дизајна индустријских система; Развој функционалног модела организационог дизајна индустријских система;
[ "http://nardus.mpn.gov.rs/bitstream/id/41252/Disertacija7596.pdf", "http://nardus.mpn.gov.rs/bitstream/id/41253/IzvestajKomisije7596.pdf", "https://nardus.mpn.gov.rs/bitstream/id/41253/IzvestajKomisije7596.pdf", "https://nardus.mpn.gov.rs/bitstream/id/41252/Disertacija7596.pdf", "http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija14722102875439.pdf?controlNumber=(BISIS)101692&fileName=14722102875439.pdf&id=6759&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_7583" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/11216
123456789-11216.pdf
yes
no
https://nardus.mpn.gov.rs/bitstream/id/37733/Disertacija.pdf
no
Ornithogalum sect. Heliocharmos Baker (Hyacinthaceae, Ornithogaloideae) na Balkanskom poluostrvu i Panonskoj niziji: revizija nomenklature,taksonomije i rasprostranjenja
Ornithogalum sect. Heliochamors Baker (Hyacinthaceae, Ornithogaloideae) in Balkan Peninsula and Pannonian Plain: revision of nomenclature, taxonomy and distribution
[ "Anačkov, Goran" ]
[ "Zorić, Lana", "Anačkov, Goran", "Niketić, Marjan", "Bogdanović, Sandro" ]
Rat, Milica
2019-07-05T09:40:58
[ "2019-07-05T09:40:58", "2020-07-03T13:41:42" ]
2019-06-19
[ "https://nardus.mpn.gov.rs/handle/123456789/11216", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija155747321206085.pdf?controlNumber=(BISIS)110612&fileName=155747321206085.pdf&id=12850&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/record.jsf?recordId=110612&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije155747352521363.pdf?controlNumber=(BISIS)110612&fileName=155747352521363.pdf&id=12851&source=NaRDuS&language=sr" ]
[ "Ornithogalum sect. Heliocharmos je takson izuzetnih karakteristika koje ga čine istovremeno varijabilnim i prostim. Sa rasprostranjenjem na području Severne Afrike, Evrope i jugoistočne Azije jeste takson sa velikim arealom u familiji Hyacinthaceae. Iako je poznat iz pre-Lineovog perioda, sistematičan pristup u istraživa nju je bio redak i vezan za određene geografske oblasti. Kako bi doprineli savremenom poznavanju taksona postavljeni su ciljevi istraživanja koji u osnovi imaju reviziju nomenklature, taksonomije i rasprostranjenja na području Balkanskog poluostrva i Panonske nizije. U istraživanje je uključeno 15 taksona: serija Platyphylla i vrste O. comosum, O.montanum, O. oligophyllum i O. fimbriatum, i serija Tenuifolia i vrste O. exscapum, O. dalmaticum, O. kochii, O. orbelicum, O. umbellatum, O. divergens, O. refractum, O. sibthorpii i neimenovani hibrid. Uz pregled nomenklature dat je kritički osvrt na etimologiju roda Ornithogalum. Taksonomski status je određen na osnovu morfometrijskih i citotaksonomskih istraživanja. Morfometrijske analize su uključile morfološke karakteristike ‚herbarskih podataka‘, cveta i plodnika, kao i uporednu anatomsku građu lista i cvetnog stabla. Osim toga posebno su analizirane kvalitativne morfološke karakteristike i mikromorfologija semena i semenjače. Podaci su analizirani standardnim statističkim metodama za definisanje taksonomski informativnih karakteristika i određivanje zasebnih grupa u okviru analiziranih taksona: multivarijantna korespondentna analiza za kvalitativne karaktere i analize varijanse i diskriminantna analiza za kvantitativne karaktere. Za objedinjenu analizu kvalitativnih i kvantitativnih karaktera upotrebljena je Faktorska analiza mešovitih podataka. Rezultati statističke obrade podataka su poslužili za kreiranje dihotomog ključa vrsta sekcije Heliocharmos. Citotaksonomska istraživanja, broj hromozoma i veličina genoma kod odabranih taksona su uključena u istraživanje i na osnovu njih je dat citotaksonmski status za date vrste. Kako bi se ispitao uticaj sredinskih faktora na vrste sekcije Heliocharmos, ispitivana je korelacija odabranih ekoloških indikatora i fitohemijskih jedinjenja kod vrste Ornithogalum umbellatum. Taksonomskim zaključcima prethodila je i revizija regionalnih i evropskih herbarijumskih kolekcija: BEO, BEOU, BP, BUNS, K, LJS, LJU, MKNH, PO, SARA, SOM, SO, SOA, W, WU, ZA, ZAGR, ZAHG, ZAHO; pregledane su i digitalne kolekcije: B, BM, BRNU, E, F, FI, G, GE, GZU, HAL, JE, MJG, NAP, OXF, PI, U, MW. Na osnovu rezultata i zaključaka prethodnih analiza, i uz rezultate koji se nalaze u kreiranoj bazi podataka herbarskih eksikata, prikazano je rasprostranjenje vrsta Ornithogalum sect. Heliocharmos. Osim pregleda rasprostranjenja dat je osvrt na opšti areal vrsta i staništa. Revizija nomenklature, taksonomije i rasprostranjenja vrsta Ornithogalum sect. Heliocharmos na području Balkanskog poluostrva i Panonske nizije dala je pregled trenutnog znanja o istraživanom taksonu. Potvrđen je nesumnjiv značaj istraživanog područja za diverzitet roda Ornithogalum. Sve ispitivane karakteristike su pokazale određen stepen varijabilnosti ali su takođe i potvrdile svoj taksonomski značaj. Upotrebom različitih kombinacija taksomomskih karaktera svaka od vrsta sekcije može biti jasno opisana. Takav predlog istovremeno ukazuje i na nedostatke u sistematskom pristupu Ornithogalum sect. Heliocharmos." ]
[ "Ornithogalum sect. Heliocharmos is a taxon of exceptional characteristics that make it concurrently variable and simple. With the distribution in North Africa, Europe and Southeast Asia, it is a large-scale taxon in the Hyacinthaceae family. Although known from the pre-Linean period, a systematic approach to research was rare and related to certain geographical areas. In order to contribute to the modern knowledge of the taxon, the goals of the research primarly have the revision of the nomenclature, taxonomy and distribution in the area of the Balkan Peninsula and the Pannonian Plain. The study included 15 taxa: ser. Platyphylla and species O. comosum, O. montanum, O. oligophyllum and O. fimbriatum, and ser. Tenuifolia and O. exscapum, O.dalmaticum, O. kochii, O. orbelicum, O. umbellatum, O. divergens, O. refractum, O. sibthorpii and unnamed hybrid. A review of the nomenclature includes a separate chapter a critical overview of the etymology of the genus Ornithogalum. Taxonomic status is determined based on morphometric and cytotaxonomic studies. Morphometric analyzes included morphological characteristics of ‘herbarum data', flowers and ovary, as well as comparative anatomical structure of leaf and scape. In addition, qualitative morphological characteristics and micromorphology of seeds and testa were analyzed in particular. Data were analyzed by standard statistical methods for defining taxonomic information characteristics and determining separate groups within the analyzed taxon: Multivariate correspondent analysis for qualitative characters and analysis of variance and Discriminant analysis for quantitative characters. For the analysis of qualitative and quantitative characteristics, the Factoraial analysis of mixed data was used. The results of statistical data were used to create a dichotomous key of the Heliocharmos section type. Cytotaxonomic studies, the number of chromosomes and the genome size in selected taxons are included in the study, and cytotoxonomic status for the date of the species is presented. In order to examine the influence of the environmental factors on the section Heliocharmos, the correlation between selected ecological indicators and phytohemical compounds in the species Ornithogalum umbellatum was examined. Taxonomic conclusions were preceded by the revision of regional and European herbarium collections: BEO, BEOU, BP, BUNS, K, LJS, LJU, MKNH, PO, SARA, SO, SO, SOA, V, VU, ZA, ZAGR, ZAHG, ZAHO; digital collections were also revised: B, BM, BRNU, E, F, FI, G, GE, GZU,HAL, JE, MJG, NAP, OKSF, PI, U, MV. Based on the results and conclusions of the taxonomic part of study, and with the results deposited in the created herbarium database, the distribution of the species Ornithogalum sect. Heliocharmos is shown. In addition to reviewing the distribution of data, there is an overview of the general range of species and habitats preferences.Revision of nomenclature, taxonomy and distribution of the species Ornithogalum sect. Heliocharmos in the Balkan Peninsula and the Pannonian Plain gave an overview of the current knowledge of the investigated taxon. The undoubted importance of the investigated area for the diversity of the genus Ornithogalum was confirmed. All the characteristics, have shown a degree of variability but they also confirmed their taxonomic significance. Using different combinations of taxonomic characters, each species can be clearly described. Such a proposal also points to disadvantages in the systematic approach of Ornithogalum sect. Heliocharmos, that need to be further investigated." ]
sr (latin script)
Универзитет у Новом Саду, Природно-математички факултет
[ "info:eu-repo/grantAgreement/MESTD/MPN2006-2010/143037/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Новом Саду
[ "Ornithogalum", "Platyphylla", "Tenuifolia", "sistematika", "morfologija", "anatomija", "mikromorfologija", "citotaksonomija", "horologija" ]
[ "Ornithogalum", "Platyphylla", "Tenuifolia", "systematics", "morphology", "anatomy", "micromorphology", "citotaxonomy", "horology" ]
[ "Ornithogalum sect. Heliocharmos Baker (Hyacinthaceae, Ornithogaloideae) na Balkanskom poluostrvu i Panonskoj niziji: revizija nomenklature,taksonomije i rasprostranjenja" ]
[ "Ornithogalum sect. Heliochamors Baker (Hyacinthaceae, Ornithogaloideae) in Balkan Peninsula and Pannonian Plain: revision of nomenclature, taxonomy and distribution" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/37734/IzvestajKomisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/37733/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/37734/IzvestajKomisije.pdf", "http://nardus.mpn.gov.rs/bitstream/id/37733/Disertacija.pdf", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija155747321206085.pdf?controlNumber=(BISIS)110612&fileName=155747321206085.pdf&id=12850&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11216" ]
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https://nardus.mpn.gov.rs/handle/123456789/11399
123456789-11399.pdf
yes
no
http://nardus.mpn.gov.rs/bitstream/id/41021/Disertacija.pdf
no
Denitrifikator Pseudomonas stutzeri – izolovanje, optimizacija bioprocesnih parametara i primena
Denitrifier Pseudomonas stutzeri – isolation, optimization of bioprocess parameters and application
[ "Markov, Siniša" ]
[ "Ranogajec, Jonjaua", "Markov, Siniša", "Grahovac, Jovana", "Ranitović, Aleksandra", "Ćurčić, Nataša" ]
Vidaković, Ana
2019-10-10T14:25:10
[ "2019-10-10T14:25:10", "2020-07-03T13:56:49" ]
2019-10-07
[ "https://nardus.mpn.gov.rs/handle/123456789/11399", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija156257683739577.pdf?controlNumber=(BISIS)110851&fileName=156257683739577.pdf&id=13092&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/record.jsf?recordId=110851&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije156257684952577.pdf?controlNumber=(BISIS)110851&fileName=156257684952577.pdf&id=13093&source=NaRDuS&language=sr" ]
[ "U okviru ove doktorske disertacije prikazan je postupak izolacije i karakterizacije denitrifikatora uz optimizaciju biotehnoloških uslova proizvodnje biomase i ispitivanje efikasnosti proizvedene biomase u pogledu biočišćenja različitih građevinskih materijala. U okviru istraživanja koja su obuhvaćena ovom doktorskom disertacijom, izolovan je nov soj denitrifikatora koji je pomoću metode MALDI TOF identifikovan kao Pseudomonas stutzeri. U svim eksperimentima karakteristike i performanse novoizolovanog soja P. stutzeri, interno označenog kao D1, su poređene sa referentnom kulturom P. stutzeri ATCC 17588, koji je model mikroorganizam na kome se izučava proces denitrifikacije. Primenom PCR metode utvrđeno je postojanje četiri ključna denitrifikujuća gena (napA, nirS, norB i nosZ) u genomu P. stutzeri D1 i referentnog soja, čime je pokazano da ispitivani sojevi imaju genetsku predispoziciju za izvođenje potpune aerobne denitrifikacije. Takođe, uz primenu Boks-Benkenovog eksperimentalnog dizajna i metode odzivne površine, definisan je sastav hranljive podloge za dobijanje maksimalnog sadržaja biomase P. stutzeri D1 (1 g/L glukoze, 3 g/l KNO3 i 4 g/L peptone) i P. stutzeri ATCC 17588 (2 g/L KNO3 i 4 g/L peptona). Osim toga, optimizovani su i odabrani bioprocesni parametri za proizvodnju biomase oba denitrifikatora – temperatura 30°C, pH vrednost kultivacionog medijuma 7 jedinica i veličina inokuluma 5% (v/v). Validacija optimizovanih parametara kultivacije izvršena je izvođenjem nove serije ogleda pri definisanim uslovima u laboratorijskim bioreaktorima ukupnih zapremina 3 L i 7 L, čime je pokazana stabilnost bioprocesa prilikom uvećanja zapremine kultivacione tečnosti uz ostvarenje maksimalnog sadržaja biomase od 9 log CFU/ml za oba ispitivana soja uz minimalno opterećenje otpadnog toka. Rezultati primene denitrifikatora u vidu bioaktivnog sistema (pulpa sa suspenzijom denitrifikatora) koji je nanošen na površinu veštački kontaminiranih model supstrata opeke ukazuju na visoku efikasnost uklanjanja nitrata i to 95 % u slučaju P. stutzeri D1 i 72% u slučaju referentnog soja. Ispitivanjem bioaktivnih sistema primenjenih na kontaminirane uzorke stenskog materijala konstatovano je da se najveća efikasnost postiže tokom prvih 24 h, kada je efikasnost bioaktivnog sistema sa P. stutzeri ATCC 17588 47,7%, a bioaktivnog sistema sa P. stutzeri D1 čak 89,2%. U okviru doktorske disertacije izolovanjem i karakterizacijom visoko efikasnog denitrifikatora P. stutzeri D1 i detaljnim prikazom postupka optimizacije bioprocesnih parametara i validacije optimizovanih bioprocesnih parametara u laboratorijskim bioreaktorima načinjeni su prvi koraci ka definisanju idejnog rešenja i uvećanju razmera predloženog bioprocesa. Takođe, visoka efikasnost odabranih denitrifikatora u postupcima biočišćenja različitih građevinskih materijala, koja je postignuta u laboratorijskim uslovima predstavlja dobar osnov za nastavak istraživanja u realnim uslovima, kako na građevinskim materijalima, tako i u tretmanima zemljišta i otpadnih voda." ]
[ "The main goal of this PhD thesis is to establish the procedure of isolation and characterization of denitrifiers along with the optimization of biotechnological conditions for the biomass production and testing the efficiency of the produced biomass in terms of biocleaning of various building materials. Within the research involved in this PhD thesis, novel denitrifier strain was isolated and identified as Pseudomonas stutzeri by using MALDI TOF. In all experiments, the characteristics and performances of the newly isolated strain of P. stutzeri (internally denoted as D1) were compared with the reference strain P. stutzeri ATCC 17588, which is a model microorganism for studying the denitrification process. By using PCR method the presence of four key denitrification genes (napA, nirS, norB and nosZ) in genome of the both strains was established indicating their genetic predisposition to perform complete aerobic denitrification. Also, the composition of the cultivation medium for obtaining the maximum content of biomass of P. stutzeri D1 (1 g/L glucose, 3 g/l KNO3 and 4 g/L peptone) and P. stutzeri ATCC 17588 (2 g/L KNO3 and 4 g/L peptone) was detemined by employing Box-Bhenken experimental design and RSM. In addition, the selected bioprocess parameters were optimized for the production of biomass of the both denitrifiers – temperature 30 °C, pH value of the cultivation medium of 7 units and inoculum size of 5% (v/v). Validation of the optimized bioprocess parameters was carried out by performing new series of experiments under previously define conditions in laboratory bioreactors with total volumes of 3 L and 7 L. The results of validation showed the stability of bioprocess while increasing the volume of the cultivation broth with the achievment of a maximum biomass content og 9 log CFU/ml for the both strains with minimum load of waste stream. The results of the application of the denitrifiers as a part of bioactive system (poultice with a suspension of denitrifiers) used onto the artificially contaminated brick model supstrates indicate a high efficiency of nitrate removal, namely 95% in the case of P. stutzeri D1 and 72% in the case of reference strain. By examing bioactive systems applied to contaminated stone material it was found that the highest efficiency in nitrate removal was achieved during the first 24 h (47.7% for the reference strian and 89.2% for the P. stutzeri D1). The results obtained in this PhD thesis including the established procedure for isolation and characterization of denitrifiers and detailed presentation of the optimization and validation process of bioprocess parameters represent the first steps made towards defining the conceptual solution and scale up of the proposed bioprocess. Moreover, the high efficiency of selected denitrificators in the biological treatment of various building materials, achieved in laboratory conditions is a good basis for continuing research in real conditions on construction materials, as well as in soil and wastewater treatment." ]
sr (latin script)
Универзитет у Новом Саду, Технолошки факултет
[ "info:eu-repo/grantAgreement/EC/FP7/282992/EU//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-sa/4.0/" ]
Универзитет у Новом Саду
[ "Denitrifikator", "Pseudomonas stutzeri", "biomasa", "bioaktivni sistem", "biočišćenje" ]
[ "Denitrifier", "Pseudomonas stutzeri", "biomass", "bioactive system", "biocleaning" ]
[ "Denitrifikator Pseudomonas stutzeri – izolovanje, optimizacija bioprocesnih parametara i primena" ]
[ "Denitrifier Pseudomonas stutzeri – isolation, optimization of bioprocess parameters and application" ]
doctoralThesis
[ "BY-NC-SA" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/41021/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/41022/IzvestajKomisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/41022/IzvestajKomisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/41021/Disertacija.pdf", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija156257683739577.pdf?controlNumber=(BISIS)110851&fileName=156257683739577.pdf&id=13092&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11399" ]
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https://nardus.mpn.gov.rs/handle/123456789/11086
123456789-11086.pdf
yes
no
https://nardus.mpn.gov.rs/bitstream/id/37651/Disertacija.pdf
no
Аналитика друштвених мрежа као фактор промоције хотела у Србији
Analitika društvenih mreža kao faktor promocije hotela u Srbiji
[ "Stankov, Uglješa" ]
[ "Blešić, Ivana", "Stankov, Uglješa", "Jovanović, Tamara", "Čikić, Jovana" ]
Калинић, Часлав
2019-05-16T11:43:45
[ "2019-05-16T11:43:45", "2020-07-03T13:41:22" ]
2019-03-13
[ "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija154530032698599.pdf?controlNumber=(BISIS)110016&fileName=154530032698599.pdf&id=12433&source=NaRDuS&language=sr", "https://nardus.mpn.gov.rs/handle/123456789/11086", "https://www.cris.uns.ac.rs/record.jsf?recordId=110016&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije154530035396375.pdf?controlNumber=(BISIS)110016&fileName=154530035396375.pdf&id=12434&source=NaRDuS&language=sr", "null/DownloadFileServlet/IzvestajKomisije154530035396375.pdf?controlNumber=(BISIS)110016&fileName=154530035396375.pdf&id=12434" ]
[ "У докторској дисертацији су кроз девет поглавља представљене могућности које доноси аналитика друштвених мрежа. Конкретно представљене су могућности које доносе друштвене мреже у склопу промотивних активности хотела. Истраживањем је обухваћено утврђивање значаја интернет маркетинга, и у склопу тога маркетинга на друштвеним мрежама за туристички и хотелски сектор, приказан је концепт друштвених мрежа као и карактеристике најактуелнијих друштвених мрежа на глобалном нивоу. Дат је и преглед техника аналитике друштвених мрежа и области и начини примене, са освртом на велике количине података. Такође, истраживањем јеобухваћено и утврђивање фактора који утичу на ангажовање корисника на друштвеним мрежама, као и карактеристике налога и метаподатака објава прикупљених на анализираним налозима. Под основном јединицом посматрања сматрани су сви категорисани угоститељски објекти врсте хотел који се налазе у Републици Србији. Прикупљање података обухватало је комбинацију мануелних и аутоматских метода, уз помоћ којих су прибављени подаци о налозима хотела на најактуелнијим друштвеним мрежама. Истраживање је потврдило прву хипотезу да су хотели у Србији препознали значај друштвених мрежа за промоцију, на нивоу присуства на тренутно водећим платформама на тржишту. У раду је делимично потврђена друга хипотеза која сматра аналитику друштвених мрежа вредним каналом за прибављање информација о потрошачима, а која се могу користити као основа за промотивне активности хотела. Истраживањем је потврђена и трећа хипотеза да различите карактеристике објава које креирају корисници и хотели на друштвеним мрежама, различито утичу на ангажованост корисника, а самим тим и на значај за промоцију. На основу теоретских сазнања о промотивним активностима на друштвеним мрежама и практичних потреба отела у Србији, дат је предлог модела за вршење промотивних активности на друштвеним мрежама. Поред тога, у раду су представљене и могућности за будућа истраживања у овој области.", "U doktorskoj disertaciji su kroz devet poglavlja predstavljene mogućnosti koje donosi analitika društvenih mreža. Konkretno predstavljene su mogućnosti koje donose društvene mreže u sklopu promotivnih aktivnosti hotela. Istraživanjem je obuhvaćeno utvrđivanje značaja internet marketinga, i u sklopu toga marketinga na društvenim mrežama za turistički i hotelski sektor, prikazan je koncept društvenih mreža kao i karakteristike najaktuelnijih društvenih mreža na globalnom nivou. Dat je i pregled tehnika analitike društvenih mreža i oblasti i načini primene, sa osvrtom na velike količine podataka. Takođe, istraživanjem jeobuhvaćeno i utvrđivanje faktora koji utiču na angažovanje korisnika na društvenim mrežama, kao i karakteristike naloga i metapodataka objava prikupljenih na analiziranim nalozima. Pod osnovnom jedinicom posmatranja smatrani su svi kategorisani ugostiteljski objekti vrste hotel koji se nalaze u Republici Srbiji. Prikupljanje podataka obuhvatalo je kombinaciju manuelnih i automatskih metoda, uz pomoć kojih su pribavljeni podaci o nalozima hotela na najaktuelnijim društvenim mrežama. Istraživanje je potvrdilo prvu hipotezu da su hoteli u Srbiji prepoznali značaj društvenih mreža za promociju, na nivou prisustva na trenutno vodećim platformama na tržištu. U radu je delimično potvrđena druga hipoteza koja smatra analitiku društvenih mreža vrednim kanalom za pribavljanje informacija o potrošačima, a koja se mogu koristiti kao osnova za promotivne aktivnosti hotela. Istraživanjem je potvrđena i treća hipoteza da različite karakteristike objava koje kreiraju korisnici i hoteli na društvenim mrežama, različito utiču na angažovanost korisnika, a samim tim i na značaj za promociju. Na osnovu teoretskih saznanja o promotivnim aktivnostima na društvenim mrežama i praktičnih potreba otela u Srbiji, dat je predlog modela za vršenje promotivnih aktivnosti na društvenim mrežama. Pored toga, u radu su predstavljene i mogućnosti za buduća istraživanja u ovoj oblasti." ]
[ "Throughout nine chapters, this PhD dissertation presents possibilities of social network analytics.Precisely, this dissertation presents possibilities of carrying out promotional activities on social network sites. The research study included determining of internet marketing importance, and within that importance of marketing on social network sites tourism and hospitality. Also, the concept of social network sites is presented as well as characteristics of the most current global ones. Within the scope of the reseatch is also a review of the techniques of social network analysis and areas and application modes, with reference to large amounts of data. The survey included determining factors that influence the user engagement on social networks, as well as the characteristics of accounts as well as characteristics of posts' metadata collected on analyzed accounts. All categorized hotel facilities located in the Republic of Serbia were considered the basic unit of observation. Data collection encompassed a combination of manual and automatic methods, through which information about the hotel's accounts in the most current social networks was obtained. The research confirmed the first hypothesis that the hotels in Serbia recognized the importance of social network sites for promotion, at the level of presence at the current leading platforms in the market. The second hypothesis is partially confirmed that considers the analytics of social network sites a valuable channel for obtaining consumer information, which can be used as the basis for the hotel's promotional activities. The study also confirmed the third hypothesis that the different characteristics of the posts created by users and hotels on social network sites have different effect on user engagement, and therefore the importance of promotion. Based on theoretical knowledge about promotional activities on social network sites and practical needs of hotels in Serbia, this study proposed the model for performing promotional activities on social network sites. In addition, the paper presents possibilities for future research in this area." ]
sr (cyrillic script)
Универзитет у Новом Саду, Природно-математички факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-sa/4.0/" ]
Универзитет у Новом Саду
[ "Друштвене мреже", "Društvene mreže", "маркетинг", "информационе технологије", "хотели", "Србија", "marketing", "informacione tehnologije", "hoteli", "Srbija" ]
[ "Social Networks", "marketing", "information technologies hotels", "Serbia" ]
[ "Аналитика друштвених мрежа као фактор промоције хотела у Србији" ]
[ "Analitika društvenih mreža kao faktor promocije hotela u Srbiji", "Social network analytics as a factor of promotion of hotels in Serbia" ]
doctoralThesis
[ "BY-NC-SA" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/37651/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/37651/Disertacija.pdf", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija154530032698599.pdf?controlNumber=(BISIS)110016&fileName=154530032698599.pdf&id=12433&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11086" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/17846
123456789-17846.pdf
yes
no
https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija156456296398257.pdf?controlNumber=(BISIS)111008&fileName=156456296398257.pdf&id=13282&source=NaRDuS&language=sr
no
Neuropsihloški korelati mikrostrukturnih promena mozga utvrđenih metodom magnetne rezonance kod obolelih od blagog kognitivnog poremećaja i Alchajmerove bolesti
Neuropsychological correlates of microstructural brain damage visualized by magnetic resonance imaging in patients with mild cognitive impairment and Alzheimer's disease
[ "Semnic, Marija", "Kozić, Duško" ]
[ "Simić, Svetlana", "Bugarski-Ignjatović, Vojislava", "Boban, Jasmina", "Daković, Marko", "Petrušić, Igor" ]
Vujanić-Stankov, Tijana
2021-02-25T14:51:54
[ "2021-02-25T14:51:54" ]
2019-10-24
[ "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija156456296398257.pdf?controlNumber=(BISIS)111008&fileName=156456296398257.pdf&id=13282&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/record.jsf?recordId=111008&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije156456298132350.pdf?controlNumber=(BISIS)111008&fileName=156456298132350.pdf&id=13283&source=NaRDuS&language=sr", "/DownloadFileServlet/IzvestajKomisije156456298132350.pdf?controlNumber=(BISIS)111008&fileName=156456298132350.pdf&id=13283", "https://nardus.mpn.gov.rs/handle/123456789/17846" ]
[ "Alchajmerova bolest je najčešća demencija od svih demencija i karakteriše je depozicija senilinih plakova i neurofibrilarnih klubadi u kortikalnim moždanim regionima, koje daljim razvojem bolesti postaju atrofične. Klinički se karakteriše smetnjma na planu pamćenja, egzekutivnih funkcija, pažnje i ostalih kognitivnih funkcija uz odustsvo sposobnosti samostalnog funkcionisanja u svakodnevnom životu. Blagi kognitivni poremeća (BKP) je klinički entitet koji se smatra početnim stadijumom demencije u kom se registruju smetnje na planu pamćenja, ali i drugih kognitvnih funkcija, uz očuvanu funkcionalnost u svakodnevnom životu. Kod obe bolesti je utvrđeno da pored kortikalnog zahvatanja, patološkim procesom je zahvaćena i bela masa mozga. U današnje vreme se mirkostrukturno oštećenje bele mase mozga može ispitati difuzionim tenzorskim imidžinogom (DTI) na magnentoj rezonanci mozga (MR). Cilj: Utvrditi razlike neuropsiholoških skorova i razlike DTI parametara između obolelih od AB, BKP i kontrolne grupe zdravih ispitanika, kao i utvrditi da li postoji korelacija između neuropsiholoških skorova i DTI parametara kod BKP i AB. Metode: U istraživanje je uključeno tri ispitivane grupe od po 30 ispitanika: oboleli od AB u blagom stadijumu bolesti, oboleli od amnestičkog multi-domen BKP i kontrolna grupa zdravih ispitanika. Dijagnoza kod obolelih u obe grupe je postavljena na osnovu kliničkih kriterijuma aktuelnih dijagnostičkih kriterijuma iz 2011. godine. Kod svih ispitanika je sprovedeno detaljno neuropsihološko testiranje u cilju procene kognitivnih funkcija (smetnji na planu pamćenja, egzekutivnih funkcija, pažnje, govora, vizuospacijalnih i vizuokonstrukcionih sposobnosti), depresivnosti i drugih neuropsihijatrijskih simptoma i kvaliteta života. Samo je kod obolelih od AB dopunski vršena procena sposobnosti svakodnevnog funkcionisanja. Kognitivne funkcije su ispitane formiranjem kognitivnih domena, na osnovu pretpostavke o zajedničkom predmetu merenja korišćenih testova. Potom je načinjen MR mozga, u okviru koje je analiziran i DTI. Dalja obrada DTI je sprovedena primenom TBSS metode, čime su dobijene vrednosti DTI parametara: frakcione anizotropije (FA), srednje difuzivnosti (SD), radijalne difuzivnosti (RD) i aksijalne difuzivnosti (DA). Nakon toga je načinjena korelacija neuropsihološkog postignuća i DTI parametara korišćenjem Pirsonovog, odnosno Spirmanovog koeficijenta korelacije. Rezultati: Oboleli od AB su imali lošije postignuće na planu vizuelnog pamćenja, verbalnog pamćenja, neposrednog upamćivanja, odloženog prisećanja, pažnje, govora, egzekutivnih funkcija, mišljenja, radne memorije i vizuospacijalnih i vizuokonstrukcionih sposobnosti u odnosu na kontrolnu grupu zdravih. Oboleli od BKP su imali lošije postignuće u odnosu na kontrolnu grupu zdravih u domenima vizuelno pamćenje, neposredno upamćivanje, odloženo prisećanje, govor, mišljenje i vizuospacijalne i vizuokonstrukcione sposobnosti. Obe grupe obolelih su ispoljile više depresivnih simptoma u odnosu na kontrolnu grupu zdravih ispitanika. Takođe, obe grupe obolelih ispoljavaju statistički značajno više neuropsihijatrijskih simptoma u odnosu na zdrave ispitanike, gde se kod obolelih od AB registruju sumanute ideje, halucinacije, agitacija, euforija, dezinhibicija, ritabilnost i apatija, dok se kod obolelih od BKP registruju anksioznost i iritabilnost. Oboleli od AB imaju lošiji kvalitet života u odnosu na zdrave ispitanike, dok između oboleli od BKP i zdravih ispitanika nema razlike u proceni kvaliteta života. Što se tiče DTI parametara, oboleli od AB imaju niži FA i višu SD, RD i DA u odnosu na zdrave ispitanike na više puteva bele mase: prednji krak kapsule interne, prednja korona radijata, telo korpusa kalozuma, cingulum, kapsula eksterna, fornix-strija terminalis, koleno korpusa kalozuma, donji fronto-okcipitalni fascikulus, zadnja korona radijata, gornji fronto-okcipitalni fascikulus, gornji longitudinalni fascikulus i fascikulus uncinatus. Oboleli od BKP imaju sniženu FA i povišenu SD, RD i DA u regiji forniksa u odnosu na zdrave ispitanike. Kod obolelih od AB registrovane su značajne povezanosti mikrostrukturnog oštećenja bele mase i oštećenja svih kognitivnih domena, izuzev domena mišljenje, dok su kod obolelih od BKP registrovane značajne povezanosti mikrostrukturnog oštećenja bele mase i oštećenja svih kognitivnih domena, izuzev domena egzekutivne funkcije. U grupi obolelih od BKP je bilo više registrovanih korelacija oštećenja domena verbalno pamćenje, odloženo prisećanje i govor sa oštećenjem bele mase mozga, dok je kod AB bilo više registrovanih korelacija oštećenja domena vizuelno pamćenje, neposredno upamćivanje, pažnja, radna memorija i vizuospacijalne i vizuokontrukcione sposobnosti sa oštećenjem bele mase mozga. Depresivnost je jedino u grupi BKP značajno korelirala sa oštećenjem određenih puteva bele mase mozga. Zaključak: U blagom stadijumu obolelih od AB se registruje kognitivno oštećenje svih ispitivanih domena, više su ispoljeni depresivni simptomi, utvrđen je veliki broj neuropsihijatrijskih simptoma i narušen je kvalitet života u odnosu na zdrave ispitanike. Kod obolelih od BKP je registrovano kognitivno oštećenje više od pola procenjivanih kognitivnih funkcija, više su ispoljeni depresivni simptomi i utvrđeno prisustvo anksioznosti i iritabilnosti, dok kvalitet života nije narušen u ovoj fazi bolesti u odnosu na zdrave ispitanike. Rezultati vezani za mikrostrukturno oštećenja mozga u najranijim fazama AB ukazuju da je neuronska mreža značajno oštećena u najranijim kliničkim fazama bolesti, dok je u stadijumu BKP izolovana na oštećenje u regiji forniksa. U grupi obolelih od BKP je bilo više registrovanih korelacija oštećenja domena verbalno pamćenje, odloženo prisećanje i govor sa oštećenjem bele mase mozga, dok je kod AB bilo više registrovanih korelacija oštećenja domena vizuelno pamćenje, neposredno upamćivanje, pažnja, radna memorija i vizuospacijalne i vizuokontrukcione sposobnosti sa oštećenjem bele mase mozga. Stepen depresivnosti i oštećenje bele mase mozga je povezano isključivo na nivou BKP." ]
[ "Alzheimer's disease (AD) is the most common dementia of all dementia with deposition of senile plaques and neurofibrillary tangles in cortical brain regions, which become atrophic in the further disease development. It`s main clinical characteristics are impairment of memory, executive function, attention and other cognitive functions with impairment in daily living activities. Mild cognitive impairment (MCI) is a clinical entity considered as an initial stage of dementia with present memory impairment, as well as other cognitive functions, while maintaining the functionality of the everyday life. In both diseases, pathological processes affect also the white matter of the brain. Nowadays, microstructural damage of the brain white matter is diagnosed by using diffusion tensor imaging (DTI) in the brain magnetic resonance imaging (MR). Objective: The aim of this study was to determine differences in neuropsychological scores and differences in DTI parameters between patients with AD, MCI and control groups of healthy subjects, as well as to determine whether there is a correlation between scores and DTI parameters in MCI and AD. Methods: The study included three groups of 30 patients each: of AD patients in the mild stage of the disease, patients with multi-domain amnestic MCI, and healthy controls. The patient’s diagnosis are based upon clinical criteria of current diagnostic criteria proposed in 2011. All patients had assessment of cognitive functions (impairment of memory, executive function, attention, language, visuospatial and construction abilities), depressive symptoms and other behavioral disorders and quality of life. Only in patients with AD, we also assessed ability of daily living activities. Cognitive functions were tested by forming cognitive domains, based on the assumption of a common object of measurement of analyzed tests. Further, participants had MRI scan, in which DTI was analyzed. DTI post-processing was carried out by using TBSS method, whereby the values of DTI parameters were: fractional anisotropy (FA), mean diffusivity (MD), radial diffusivity (RD) and axial diffusivity (DA). We conducted correlation analysis of the neuropsychological achievements and DTI parameters using Pearson or Spearman’s correlation coefficient, dependent on variable distribution. Results: The patients with AD had lower scores in the field of visual memory, verbal memory, immediate and delayed recall, attention, language, executive functions, reasoning, working memory and visuospatial and construction abilities compared to the control group. Patients with MCI had lower scores compared to the control group in the domains of visual memory, immediate and delayed recall, language, reasoning, and visuospatial and construction abilities. Both groups of patients have more depressive symptoms in relation to the control group of healthy subjects. In addition, both groups of patients exhibited a significantly higher degree of behavioral disorders as compared to healthy subjects, where AD patients experienced delusions, hallucinations, agitation, euphoria, disinhibition, irritability and apathy, while MCI patients experienced anxiety and irritability. Patients with AD had a poor quality of life compared to healthy subjects, whereas people with MCI did not. As for the parameters of DTI, AD patients had decrease of FA and increase of MD, RD, and DA compared to the healthy subjects in the multiple white matter tracts: anterior limb of internal capsule, anterior part of corona radiata, the body of the corpus callosum, cingulum, external capsule, fornix- striae terminalis, genu of the corpus callosum, inferior frontal-occipital fasciculus, posterior corona radiata, superior frontal-occipital fasciculus, superior longitudinal fasciculus and fasciculus uncinatus. Patients with MCI had decreased FA and increased MD, RD and DA in the fornix compared to healthy subjects. In AD patients, there was significant association between microstructural white matter brain damage and all cognitive domains, except domain reasoning, while in patients with MCI significant association was evident between microstructural white matter damage and all cognitive domains, except the domain of executive function. Results related to the microstructural white matter brain damage in mild AD indicates that wide neural network is significantly damaged at the earliest clinical stages of the disease, while in MCI stage only fornix shows microstructural white matter brain damage. Level of impairment of verbal memory, delayed recall and language correlates more frequently in MCI group compared to mild AD group, where impairment in the field of visual memory, immediate recall, attention, working memory and visuospatial and construction abilities correlates more frequently with white matter brain damage. Association of depressive symptoms and white matter brain damage was significant in MCI patients. Conclusion: In mild AD, cognitive impairment is present in all cognitive domains; patients experience more depressive symptoms and wider spectrum of behavioral disorders with compromised quality of life compared to healthy subjects. In MCI patients, cognitive impairment is present in more than half of the assessed cognitive functions; patients also experience more depressive symptoms, as well as anxiety and irritability without quality of life deterioration compared to healthy subjects. Results related to the microstructural white matter brain damage in mild AD indicates that wide neural network is significantly damaged at the earliest clinical stages of the disease, while in MCI stage only fornix shows microstructural white matter brain damage. Level of impairment of verbal memory, delayed recall and language correlates more frequently in MCI group compared to mild AD group, where impairment in the field of visual memory, immediate recall, attention, working memory and visuospatial and construction abilities correlates more frequently with white matter brain damage. The degree of depression correlated significantly with white matter brain damage solely at the level of MCI." ]
sr (latin script)
Универзитет у Новом Саду, Медицински факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Новом Саду
[ "Alchajmerova bolest", "kognitivni poremećaj", "demencija", "neuropsihološki testovi", "bela moždana masa", "magnetna rezonanca", "difuzioni tenzorski imidžing" ]
[ "Alzheimer Disease", "Cognitive Dysfunction", "Dementia", "Neuropsychological Tests", "White Matter", "Magnetic Resonance Imaging", "Diffusion Tensor Imaging" ]
[ "Neuropsihloški korelati mikrostrukturnih promena mozga utvrđenih metodom magnetne rezonance kod obolelih od blagog kognitivnog poremećaja i Alchajmerove bolesti" ]
[ "Neuropsychological correlates of microstructural brain damage visualized by magnetic resonance imaging in patients with mild cognitive impairment and Alzheimer's disease" ]
doctoralThesis
[ "BY-NC-ND" ]
Семниц, Марија; Козић, Душко; Петрушић, Игор; Даковић, Марко; Бобан, Јасмина; Бугарски-Игњатовић, Војислава; Симић, Светлана; Вујанић-Станков, Тијана; Неуропсихлошки корелати микроструктурних промена мозга утврђених методом магнетне резонанце код оболелих од благог когнитивног поремећаја и Aлцхајмерове болести; Неуропсихлошки корелати микроструктурних промена мозга утврђених методом магнетне резонанце код оболелих од благог когнитивног поремећаја и Aлцхајмерове болести;
[ "https://nardus.mpn.gov.rs/bitstream/id/68360/IzvestajKomisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/68359/Disertacija.pdf", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija156456296398257.pdf?controlNumber=(BISIS)111008&fileName=156456296398257.pdf&id=13282&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_17846" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/8095
123456789-8095.pdf
yes
no
http://nardus.mpn.gov.rs/bitstream/id/33461/Disertacija9305.pdf
no
Analiza shear lag uticaja kod tankozidnih kompozitnih nosača otvoreno-zatvorenog poprečnog preseka
Shear lag analysis of thin-walled composite beams with open-closed cross section
[ "Prokić, Aleksandar" ]
[ "Folić, Radomir", "Bešević, Miroslav", "Mandić, Rastislav", "Peić, Hajnalka", "Prokić, Aleksandar" ]
Војнић-Пурчар, Мартина
2017-05-27T08:13:02
[ "2017-05-27T08:13:02", "2020-07-03T13:20:45" ]
2016-06-24
[ "https://nardus.mpn.gov.rs/handle/123456789/8095", "http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija145941406680937.pdf?controlNumber=(BISIS)100390&fileName=145941406680937.pdf&id=5257&source=NaRDuS&language=sr", "http://www.cris.uns.ac.rs/record.jsf?recordId=100390&source=NaRDuS&language=sr", "http://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije145932637719818.pdf?controlNumber=(BISIS)100390&fileName=145932637719818.pdf&id=5229&source=NaRDuS&language=sr" ]
[ "U radu su izvedene diferencijalne jednačine tankozidnog kompozitnog štapa proizvoljnog poprečnog preseka, primenom principa virtualnih pomeranja, a polazeći od funkcije deplanacije koju je predložio A. Prokić, za tankozidne štapove homogenog poprečnog preseka. Ona omogućava jedinstvenu analizu tankozidnih štapova otvorenog i zatvorenog poprečnog preseka, pretpostavka o zanemarenju klizanja u srednjoj površi štapa nije neophodna, pa se smičući naponi određuju direktno iz odgovarajućih deformacija. Raspodela normalnih napona nije više određena sektorskom koordinatom već parametrima pomeranja čvornih tačaka, i u opštem slučaju je promenljiva od preseka do preseka, što omogućuje registrovanje i analizu shear lag uticaja, koji se klasičnom teorijom tankozidnih nosača ne može opisati. Kao što je poznato, shear lag uticaj predstavlja neravnomernu raspodelu normalnih napona u pojasevima, s tim što se maksimalna vrednost javlja na mestu spoja pojasa sa rebrima, i u opštem slučaju je veća od vrednosti napona koja se dobija klasičnom teorijom savijanja štapova zasnovanoj na Bernoullijevoj hipotezi. To je posebno izraženo kod štapova napregnutih na savijanje kod kojih dolazi do značajne deplanacije poprečnog preseka. Dobijeni sistem diferencijalnih jednačina se ne može rešiti u zatvorenom obliku te se pristupilo numeričkoj metodi, odnosno primeni metode konačnih elemenata. Definisana su dva tipa elementa sa različitim polaznim pretpostavkama. Prvi tip elementa zasnovan je na teoriji Timoshenka, odnosno uticaj transverzalnih sila na deformaciju se uzima u obzir. Drugi tip elementa zanemaruje uticaj transverzalnih sila na deformaciju, odnosno usvaja se pretpostavka da poprečni preseci i nakon deformacije ostaju ravni i upravni na srednju liniju štapa. Kao dokaz tačnosti prethodno izvedenih teorijskih razmatranja urađen je niz primera pomoću programa napisanog u programskom jeziku C." ]
[ "Differential equations of thin-walled composite beams of arbitrary cross section were derived, using the principle of virtual displacements and starting from function of deplanation suggested by A. Prokic, for thin-walled beams of homogeneous cross section. It enables unique analysis thin-walled beams of open and closed cross section, assumption of neglecting shear strain in the middle surface is not necessary and shear stresses can be calculated directly from the strains. Distribution of longitudinal stresses is not defined by warping function, but parameters of longitudinal displacement, and in general case it is variable of section to section, that enables registering and analysis of shear lag, which classical theory of thin-walled beams is unable to reflect. As it is known, shear lag effect presents a non-uniform distribution of normal stresses in the flanges, maximal values are on the connection of flange and web, in general case it is larger from the value of stress obtained by classical theory of beams based on the Bernoulli hypothesis. It is especially expressed at beams subjected to bending where deplanation of cross section is significant. Derived system of differential equations can not be solved in closed form solution and it was accessed to numerical method, respectively on the finite element method. Two types of element with different starting settings were defined. First type of element is based on the theory of Timoshenko, apropos the influence of transversal forces on deformation were taken into account. The second type of element neglects influence of transversal forces on deformation, concerning assumption that cross section remain plane and orthogonal on the middle line is adopted. A number of numerical examples are calculated by a computer program written in program language C as a proof of accuracy of previously derived theoretical reviews." ]
sr (latin script)
Универзитет у Новом Саду, Грађевински факултет, Суботица
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Новом Саду
[ "tankozidni nosači", "kompoziti", "shear lag" ]
[ "thin-walled beams", "composites", "shear lag" ]
[ "Analiza shear lag uticaja kod tankozidnih kompozitnih nosača otvoreno-zatvorenog poprečnog preseka" ]
[ "Shear lag analysis of thin-walled composite beams with open-closed cross section" ]
doctoralThesis
[ "BY" ]
Прокић, Aлександар; Пеић, Хајналка; Мандић, Растислав; Бешевић, Мирослав; Фолић, Радомир; Прокић, Aлександар; Vojnić-Purčar, Martina; Aнализа схеар лаг утицаја код танкозидних композитних носача отворено-затвореног попречног пресека; Aнализа схеар лаг утицаја код танкозидних композитних носача отворено-затвореног попречног пресека;
[ "https://nardus.mpn.gov.rs/bitstream/id/33460/IzvestajKomisije9305.pdf", "https://nardus.mpn.gov.rs/bitstream/id/33461/Disertacija9305.pdf", "http://nardus.mpn.gov.rs/bitstream/id/33460/IzvestajKomisije9305.pdf", "http://nardus.mpn.gov.rs/bitstream/id/33461/Disertacija9305.pdf", "http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija145941406680937.pdf?controlNumber=(BISIS)100390&fileName=145941406680937.pdf&id=5257&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_8095" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/7981
123456789-7981.pdf
yes
no
http://nardus.mpn.gov.rs/bitstream/id/35271/Disertacija8397.pdf
no
Uticaj različitih antitromboznih lekova na prevenciju nastanka rane tromboze arteriovenskih fistula za hemodijalizu kod bolesnika sa terminalnom bubrežnom insuficijencijom
The use of different antithrombotic drugs for the prevention of early thrombosis of arteriovenous fistula for hemodialysis in patients with end stage renal disease
[ "Mitić, Gorana" ]
[ "Božić, Dušan", "Đurđević-Mirković, Tatjana", "Vučković-Radulović, Biljana", "Petrović, Dejan", "Pasternak, Janko" ]
Filipov, Predrag
2017-04-29T21:46:25
[ "2017-04-29T21:46:25", "2020-07-03T13:27:56" ]
2017-04-21
[ "http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija148457191458789.pdf?controlNumber=(BISIS)104107&fileName=148457191458789.pdf&id=7173&source=NaRDuS&language=sr", "https://nardus.mpn.gov.rs/handle/123456789/7981", "http://www.cris.uns.ac.rs/record.jsf?recordId=104107&source=NaRDuS&language=sr", "http://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije148457192234255.pdf?controlNumber=(BISIS)104107&fileName=148457192234255.pdf&id=7174&source=NaRDuS&language=sr" ]
[ "UVOD: Komplikacije terminalne bubrežne isuficijencije (TBI) kada se jačina glomerularne filtracije (JGF) smanji ispod 10 mL/min moguće je lečiti jedino hroničnom dijalizom ili transplantacijom bubrega tj. nadoknadom potpuno ili delimično izgubljene bubrežne funkcije. Uz blagovremenu edukaciju bolesnika o progresivnom toku hronične bubrežne bolesti, mogućnostima dijaliznog tretmana i transplantacije bubrega, treba na vreme obezbediti stalni funkcionalni vaskularni pristup za hemodijalizu (HD) hirurškom intervencijom kreiranja arteriovenske fistule (AVF), po mogućnosti najmanje 6 meseci pre anticipiranog započinjanja HD, jer je za njenu maturaciju potrebno 4 do 6 nedelja. Primarna AVF je opštepreporučeni najbolji stalni vaskularni pristup za bolesnike kod kojih se planira hemodijaliza. Najčešći razlog za disfunkciju vaskularnog pristupa za hemodijalizu su u 80% slučajeva trombozne komplikacije, koje se u 90% slučajeva javljaju na venskom segmentu AVF i posledica su progresivne venske neointimalne hiperplazije. Pored histoloških karakteristika zida venskog krvnog suda i hemodinamskih uslova, u etiopatogenezi ovog »adaptivnog odgovora« vrlo značajnu ulogu igraju endotel i ostale komponente hemostaznog sistema (trombocitna, koagulaciona i fibrinolizna), imunološki i citološki činioci i genetski faktori. Prevencija nastanka rane tromboze vaskularnog pristupa za hemodijalizu kod bolesnika sa TBI je moguća primenom antitromboznih lekova, tj. antitrombocitne ili antikoagulantne terapije. CILJ: Proceniti efikasnost primenjenih antitromboznih lekova (tiklopidina i nadroparin-kalcijuma) u prevenciji nastanka rane tromboze/afunkcionalnosti AVF za hemodijalizu za vreme njene maturacije unutar 6 nedelja od kreiranja u bolesnika sa TBI. Ispitati nivo biomarkera hemostaznog sistema i markere trombofilije u bolesnika sa TBI pre kreiranja AVF u cilju dopune uzroka nastanka rane tromboze/afunkcionalnosti arteriovenskih fistula za hemodijalizu. Ispitati učestalost trombofilije i njen uticaj na funkcionalnost AVF i uporediti efikasnost primenjenih preventivnih režima između bolesnika sa i bez trombofilije. MATERIJAL I METODE: U ispitivanje su uključene osobe oba pola sa prethodno postavljenom dijagnozom TBI kod kojih nisu postojale kontraindikacije za planirno hirurško kreiranje prvog stalnog vaskularnog pristupa za hemodijalizu u vidu autologne arteriovenske fistule (AAVF). Nakon hirurškog kreiranja radiocefalične arteriovenske fisule u distalnoj trećini podlaktice nedominantne ruke (89/121), intermedijalne (4/121) ili proksimalne (28/121) AAVF u studiju je uključen 121 ispitanik, koji su u cilju procene uticaja različitih antitromboznih lekova na sprečavanje nastanka rane tromboze fistula za hemodijalizu kod bolesnika sa TBI ispitanici su podeljeni u 3 grupe: Grupa I, kontrolna; 40 ispitanika koji nakon kreiranja AVF nisu dobijali antitromboznu terapiju, Grupa II; 42 ispitanika kod kojih je dan nakon kreiranja AVF započeta primena antitrombocitnog leka iz grupe tienopiridina, Ticlodix® (ticlopidin) tbl a 250 mg, 2 x ½ tbl dnevno tokom 6 nedelja i Grupa III; 39 ispitanika kod kojih je dan nakon kreiranja AVF započeta subkutana primena antikoagulantnog leka iz grupe niskomolekularnih heparina, Fraxiparine® (nadroparin-kalcijum) 2850 anti Xa i.j. (0.3 ml) dnevno tokom 6 nedelja. Jednokratno određivanje laboratorijskih parametara pokazatelja bubrežne funkcije, metabolizma glukoze i hroničnog zapaljenja, funkcionalnosti hemostaznog sistema, trombofilnih markera i genskog polimorfizma vršeno je unutar dve nedelje pre hirurškog kreiranja AAVF. Kriterijum za utvrđivanje ishoda uticaja antitrombozne terpije predstavlja maturacija AVF koja je definisana kao uspešna ako je započeto sprovođenje efikasne hemodijalize najranije 6 nedelja nakon njenog hirurškog kreiranja po proceni nadležnog nefrologa. Dijagnoza prisustva tromboze AVF postavljena je od strane nadležnog vaskularnog hirurga/nefrologa fizikalnim pregledom tokom njene maturacije, koji je podrazumevao inspekciju, palpatorno utvrđivanje odsustva karakterističnog trila i auskultatornih karakteristika protočnosti AVF ili ultarsonografskim pregledom od strane radiologa. REZULTATI: Između ispitivanih grupa u odnosu na broj tromboziranih/ afunkcionalnih AVF tokom njene maturacije (12/40 vs. 4/42 vs. 5/39; P=0.033), ustanovljena je značajna statistička razlika kao i poređenjem broja tromboziranih/afunkcionalnih AVF tokom sazrevanja u kontrolnoj grupi u odnosu na grupu ispitanika (objedinjene Grupe II i Grupa III) koja je primala antitromboznu profilaksu (12/40 vs. 9/81; P=0.009). Daljom analizom ispitivanih grupa, utvrđena je statistički značajna razlika u broju tromboziranih/afunkcionih AV fistula između kontrolne Grupe I i Grupe II (P=0.019). Testiranjem razlike u broju tromboziranih/ afunkcionalnih AVF između ispitanika kontrolne Grupe I i Grupe III nije dobijena statistički značajna razlika, kao ni između Grupe II i Grupe III. Zastupljenost broja tromboziranih/afunkcionalnih distalnih AVF za vreme njihove maturacije (12/33 vs 2/31 vs. 3/24; P=0.008) se između ispitivanih grupa značajno statistički razlikovala kao i zastupljenost tromboziranih/afunkcionalnih distalnih AVF tokom sazrevanja u kontrolnoj grupi u odnosu na grupu ispitanika koja je primala antitromboznu profilaksu (12/34 vs. 5/55; P=0.002). Testiranjem statističke razlike u broju tromboziranih/afunkcionalnih distalnih AVF između ispitanika kontrolne Grupe I i Grupe II utvrđena je statistički značajna razlika (P=0.005), dok između Grupe I i Grupe III (P=0.051), kao ni između Grupe II i Grupe III (P=0.439) nije dobijena statistički značajna razlika. Između podgrupa ispitanika kod kojih je došlo do tromboze/afunkcionalnosti AVF 21/121 (17.35%) i podgrupe ispitanika sa funkcionalno maturiranom AVF 90/121 (82.64%), značajna statistička razlika ispitanih hemostaznih parametara je bila prisutna u vrednostima agregabilnosti trombocita uz kolagen kao induktor (59.33±33.1 vs. 75.04±29.6; P=0.033). Značajna statistička razlika je zabeležena i u zastupljenosti sledećih trombofilnih markera: deficita PC (3/21 vs. 3/100; P=0.030), APC-R (4/21 vs. 5/100; P=0.026), prisustva antifosfolipidnih ACL IgM antitela (1/21 vs. 0/100; P=0.028), heterozigotnog polimorfizma FV G1691A (3/21 vs. 3/100; P=0.03) i homozigotne mutacije gena FII G20210A (1/21 vs. 0/100; P=0.028), između podgrupa bolesnika sa tromboziranom afunkcionalnom i funkcionalnom AVF. Takođe je značajna statistička razlika između podgrupa bolesnika kod kojih je došlo tromboze/afunkcionalnosti AVF i podgrupe ispitanika sa funkcionalno maturiranom AVF bila prisutna u odnosu na postojanje ranijih tromboza (23/21 vs 19/100; P=0.000) kao i zastupljenosti izolovanih venskih tromboza (9/21 vs. 2/100; P=0.000). Prediktivni potencijal pojedinačnih parametara za maturaciju AVF ispitan je univarijantnom logističkom regresionom analizom. Prilikom ispitivanja uticaja pojedinačnih parametara na maturaciju fistule, zapazili smo da su ispitanici koji su primali antitromboznu terapiju imali 3 puta veću šansu za funkcionalno maturiranu AVF [OR 3.45 (1.3-9.03)] u odnosu na bolesnike bez terapije. Ispitanici koji su imali prethodne tromboze su imali višestruko povišen rizik [OR 6.92 (2.51-19.06)] za nastanak tromboze/afunkcionalnost AVF tokom maturacije. Prilikom ispitivanja uticaja pojedinačnih parametara na rizik od pojave tromboze/afunkcionalnosti distalne AVF, zapažamo da primena antitrombozne terapije [OR 5.4 (CI 1.7 - 17.35)] petostruko snižava rizik za nastanak tromboze/ afunkcionalnosti distalne AVF, odnosno da primena antitrombozne terapije petostruko povećava šansu za adekvatnu maturaciju distalne AVF. Ispitanici koji su imali aterosklerotske KVB [OR 0.32 (0.1-0.98)] i ranije tromboze [OR 0.14 (0.04-0.44)] su imali za 68% i 86% manju verovatnoću za adekvatnu maturaciju distalne AVF (334). Trombofilija je bila prisutna u 59/121 (48.8%) ispitanika. U odnosu na markere aktivacije koagulacione komponente hemostaznog sistema i inflamatorne pokazatelje, između podgrupa ispitanika sa ili bez trombofilije statistički značajna razlika je bila prisutna u vrednostima koncentracije FVIII (170.35±103.97 vs. 235.26±124.80; P=0.02) i odnosa trombociti/limfociti (181±64.58 vs. 148.11±66.15; P=0.026). U odnosu na lokalizaciju AVF, u podgrupi ispitanika sa trombofilijom i tromboziranom/ afunkcionalnom AVF, njih 8/11 su pripadale distalnim AVF, 3/11 proksimalnim AVF, dok je u podgrupi ispitanika bez trombofilije i tromboziranom/afunkcionalnom AVF, njih 9/10 imalo distalnu, a 1/10 proksimalnu AVF. U grupi bolesnika sa trombofilijom nije zabeleženo prisustvo statistički značajne razlike u efikasnosti primenjenih antitromboznih režima merene učestalošću tromboza/afunkcionalnosti AVF u odnosu na bolesnike sa trombofilijom koji nisu primali antitromboznu terapiju (5/19 vs. 2/18 vs. 4/22; P=0.493). U grupi ispitanika bez trombofilije utvrđeno je postojanje statistički značajne razlike u učestalosti tromboza/afunkcionalnosti AVF između grupe sa i bez primene antitromboznih lekova kako u ukupnom broju tromboziranih/afunkcionalnih AVF (7/21 vs. 2/24 vs. 1/17; P=0.030). Iako je zastupljenost tromboza/afunkcionalnosti AVF u bolesnika sa kombinovanom trombofilijom češća u odnosu na ispitanike koji su imali drugu vrstu ili uopšte nisu imali trombofiliju (6/18 vs. 15/103; P=0.052), ona nije dostigla statistički značajnu vrednost. ZAKLJUČAK: Profilaktička primena antitromboznih lekova (tiklopidina i nadroparin-kalcijuma) smanjuje učestalost pojave rane tromboze i pojavu primarne nefunkcionalnosti AVF za hemodijalizu tokom njene maturacije. Primena antitrombozne terapije petostruko snižava rizik za nastanak tromboze/ afunkcionalnosti distalne AVF tokom njene maturacije. Bolesnici koji su imali prethodne tromboze imaju višestruko povišen rizik za nastanak tromboze AVF tokom njene maturacije. Kod bolesnika koji su imali aterosklerotske KVB i ranije tromboze verovatnoća za adekvatnu maturaciju distalne AVF je niža za 68% , odnosno 86%. U našem istraživanju nije utvrđeno postojanje superiornosti antikoagulantne u odnosu na antitrombocitnu profilaksu tj. oba primenjena režima su bila podjednako efikasna. U terminalnoj bubrežnoj insuficijenciji prisutan je značajan poremećaj funkcionalnosti hemostaznog sistema koji se očituje u disfunkciji endotela i poremećenoj (sniženoj) funkcionalnosti trombocita, prisustvu prokoagulantnog stanja koje se manifestuje povišenom trombinskom aktivnošću, povišenom koncentracijom činilaca koagulacije i smanjenom fibrinoliznom aktivnošću. Češća zastupljenost ukupnih ranijih tromboza (arterijskih i venskih), češća zastupljenost izolovanih venskih tromboza i učestalije prisustvo trombofilije prezentovano deficitom PC, prisustvom rezistencije na APC, prisusustvom antifosfolipidnih antikardiolipinskih antitela IgM, heterozigotnog polimorfizma FV G1691A, homozigotne mutacije FII G201210A i niža vrednost agregabilnosti trombocita uz kolagen kao induktor su markeri koji su u našem ispitivanju signifikantno češće zastupljeni kod ispitanika sa trombozom/ afunkcijom AVF za hemodijalizu tokom njenog sazrevanja. Trombofilija je prisutna kod 48.8% bolesnika saTBI, ali našim ispitivanjem nije utvrđen njen uticaj na nastanak rane tromboze/afunkcionalnosti AVF izuzev u grupi bolesnika sa kombinovanom trombofilijom. Mali broj krvarećih komplikacija u našoj studiji ukazuje na bezbednost primenjenog preventivnog režima. Na osnovu dobijenih rezultata može se preporučiti profilaktička primena tiklopidina ili nadroparin-kalcijuma u preventivnim dozama kod bolesnika sa TBI neposredno nakon kreiranja AVF. Primenu profilakse tromboznih komplikacija kod bolesnika sa novokreiranom AVF preporučujemo posebno kod bolesnika koji su imali prethodne tromboze i/ili kliničke manifestacije aterosklerotskih kardiovaskularnih bolesti." ]
[ "INTRODUCTION: Complications in end stage renal disease (ESRD) when the glomerular filtration rate (GFR) decreases below 10mL/min can only be treated by chronic dialysis or kidney transplant ie. total or partial renal replacement therapy. With prompt education of the patient regarding the progressive course of the chronic kidney disease, possibilities of dialysis treatment and kidney transplantation, the patient should timely be granted permanent functional vascular hemodialysis (HD) access through surgical intervention by creating arteriovenous fistula (AVF), preferably at least 6 months prior to the anticipated start of HD, as period for its maturation is between 4 and 6 weeks. Primary AVF is the generally best recommended permanent vascular access for patients planned for dialysis. The most common reason for dysfunction of the vascular access for hemodialysis are thrombotic complications in 80% of the cases, 90% of which appear in the venous segment of AVF as the consequence of progressive venous neointimal hyperplasia. Beside the histological characteristics of the venous blood vessel wall and hemodynamic conditions, in the etiopathogenesis of this “adaptive answer”, endothel and other components of the hemostatic system (platelet, coagulation and fibrinolysis), immunological and cytological components as well as genetic factors play a very important role. Prevention of occurrence of early thrombosis of vascular access for hemodialysis in patients with ESRD is possible by treatment with antithrombotic drugs, ie. antiplatelet or anticoagulant therapy. OBJECTIVE: Estimate the efficiency of applied antithrombotic drugs (ticlopidine and nadroparincalcium) in prevention of occurrence of early thrombosis/dysfunction of AVF for hemodialysis during its time of maturation within the 6 week period. Examine the level of biomarkers of the hemostatic system and thrombophilic markers in patients with ESRD before the creation of AVF with the goal of finding additional causes of occurrence of early thrombosis/dysfunction of arteriovenous fistula for hemodialysis. Determine the incidence of thrombophilia and its impact on the functionality of AVF and compare the efficiency of applied preventive regimen between patients with and without thrombophilia. MATERIAL AND METHODS: The study included persons of both sexes with previously established diagnosis of ESRD in which there were no contraindications for the planned surgical creation of the first permanent vascular access for hemodialysis in the form of autologous arteriovenous fistula (AAVF). After the surgical creation of the radiocephalic arteriovenous fistula in the distal third of the forearm of the non-dominant hand (89/121), intermedial (4/121) or proximal (28/121) AAVF, the total number of 121 patients were included in the study and divided into three groups in order to estimate the influence of different antithrombotic drugs in prevention of early thrombosis for hemodialysis in patients with ESRD: Group I, control; 40 subjects which did not receive antithrombotic therapy after the creation of AVF, Group II; 42 subjects which started receiving an antithrombotic drug from the tienopiridine group, Ticlodix® (ticlopidine) 2 x ½ of 250mg tbl, daily, during the period of 6 weeks, after the creation of AVF, and Group III; 39 subjects which started subcutaneously receiving a drug from the low-molecular weight herapin group, Fraxiparine® (nadroparine-calcium) 2850 anti Xa i.j. (0.3 ml) daily, during the period of 6 weeks. One-time determination of laboratory parameters and renal function, glucose metabolism and chronic inflammation, hemostatic system functionality, thrombophilic markers and gene polymorphism was performed within two weeks prior to surgical creation of AAVF. The criteria for determining the outcome of the impact of antithrombotic therapy is the maturation of AVF, which is defined as successful if the implementation of effective hemodialysis started at least 6 weeks after its creation, where the effectiveness of hemodialysis is estimated by a competent nephrologist. The diagnosis of the presence of AVF thrombosis was set by a competent vascular surgeon/nephrologist through physical examination during its maturation, which included inspection, palpatory determination of absence of the characteristic thrill and auscultatory characteristics of the flow of AVF, or by ultrasonographic examination by the radiologist. RESULTS: Between the groups in terms of number of thrombosed/dysfunctional AVF during its maturation (12/40 vs. 4/42 vs. 5/39, P = 0.033), a significant statistical difference was established, as well as by comparing the number of thrombosed/dysfunctional AVF during maturation in the control group compared to the group of respondents (unified Group II and Group III) which received antithrombotic prophylaxis (12/40 vs. 9/81, P = 0.009). Through further analysis of the examined groups, a statistically significant difference was observed in the number of thrombosed/dysfunctional AV fistula between the control Group I and Group II (P = 0.019). There was no statistically significant difference noticed in the numbers of thrombosed/dysfunctional AVF between the subjects in the control Group I and Group III, as well as between Group II and Group III. Presence of the number of thrombosed/dysfunctional distal AVF during their maturation (12/33 vs 2/31 vs. 3/24, P = 0.008) between the groups statistically significantly varied, as well as the presence of the number of thrombosed/dysfunctional distal AVF during the maturation in the control group as compared to the group of subjects who received antithrombotic prophylaxis (12/34 vs. 5/55; P=0.002). By testing statistical differences in the number of thrombosed/dysfunctional distal AVF between the subjects in the control Group I and Group II a statistically significant difference (P = 0.005) was established, while there was no statistically significant difference between Group I and Group III (P = 0.051), nor between Group II and Group III (P = 0.439). Among the subgroup of patients with thrombosis/dysfunction of AVF 21/121 (17.35%) and the subgroup of subjects with functionally maturated AVF 90/121 (82.64%), a statistically significant difference of the examined hemostasis parameters was present in the values of platelet aggregation with collagen as the inducer (59.33 ± 75.04 vs. 33.1 ± 29.6; P = 0.033). A significant statistical difference was recorded in the presence of the following thrombophilic markers: deficit of PC (3/21 vs. 3/100; P = 0.030), APC-R (4/21 vs. 5/100; P = 0.026), the presence of antiphospholipid ACL IgM antibodies ( 1/21 vs. 0/100; P = 0.028), heterozygous FV G1691A polymorphism (3/21 vs. 3/100; P = 0.03) and homozygous gene mutation FII G20210A (1/21 vs. 0/100; P = 0.028), between the subgroups of patients with thrombosed/dysfunctional and functional AVF. There also was a significant statistical difference between the groups of patients which encountered thrombosis/dysfunction of AVF and subgroups of subjects with functional maturated AVF in relation to the existence of previous thrombosis (23/21 vs. 19/100; P = 0.000) and the presence of isolated venous thrombosis (9/21 vs. 2/100; P = 0.000). Predictive potential of individual parameters for AVF maturation was tested by univariate logistic regression analysis. During the examination of the influence of individual parameters on fistula maturation, we observed that subjects who received antithrombotic therapy were 3 times more likely to develop functionally maturated AVF [OR 3.45 (1.3-9.03)] as compared to subjects who did not receive any treatment. Subjects which previously had thrombosis had a multiple times increased risk [OR 6.92 (2:51 to 19:06)] of developing thrombosis/dysfunctional AVF during its maturation. When examining the influence of individual parameters on the risk of thrombosis/dysfunction of the distal AVF, we noted that the implementation of antithrombotic therapy [OR 5.4 (CI 1.7 - 17:35)] reduced risk of thrombosis/dysfunction of the distal AVF by five times, ie. that the implementation of antithrombotic therapy increases the chance for adequate distal AVF maturation by five times. The subjects that had atherosclerotic cardiovascular diseases (CVD) [OR 0.32 (0.1-0.98)] or previous thrombosis [OR 0.14 (0.04-00.44)] had a 68% or 86% less chance for adequate distal AVF maturation (334). Thrombophilia was present in 59/121 (48.8%) patients. In relation to the markers of activation of coagulation components of the hemostatic system and inflammatory markers, among subgroups of subjects with or without thrombophilia a statistically significant difference was present in the FVIII concentration (170.35 ± 103.97 vs. 235.26 ± 124.80; P = 0.02) and the platelets/lymphocytes ratio (181 ± 64.58 vs. 148.11 ± 66.15; P = 0.026). In relation to the localization of AVF, in the subgroup of subjects with thrombophilia and thrombosed/dysfunctional AVF, 8/11 of them belonged to distal AVF, 3/11 proximal AVF, while in the subgroup of subjects without thrombophilia and thrombosed/dysfunctional AVF, had 9/10 distal and 1/10 proximal AVF. In the group of subjects with thrombophilia there was no record of the presence of statistically significant differences in the efficiency of antithrombotic regimen which was measured by the frequency of thrombosis/dysfunction of AVF as compared to subjects with thrombophilia which did not receive antithrombotic therapy (5/19 vs. 2/18 vs. 4/22, P = 0.493). In the group of subjects without thrombophilia statistically significant differences were found in the frequency of thrombosis/dysfunctions of AVF among groups with and without the use of antithrombotic drugs in the total number of thrombosed/dysfunctional AVF (7/21 vs. 2/24 vs. 1/17, P = 0.030). Although the presence of thrombosis/dysfunction of AVF in patients with combined thrombophilia was more frequent compared to those who had other types of, or did not have thrombophilia (6/18 vs. 15/103; P = 0.052), it did not reach a statistically significant value. CONCLUSION: Prophylactic use of antithrombotic drugs (ticlopidine and nadroparin-calcium) reduces the incidence of early thrombosis and the occurrence of primary AVF dysfunction for hemodialysis during its maturation. Implementation of antithrombotic therapy reduced risk of thrombosis/ dysfunction of the distal AVF during its maturation by five times. Patients who have had previous thrombosis have multiple times greater risk of AVF thrombosis during its maturation. In patients who had atherosclerotic CVD or previous thrombosis, the probability for adequate maturation of distal AVF is lower by 68% or 86%. In our study there was no evidence of superiority of anticoagulant compared to antiplatelet prophylaxis ie. both regimens were equally effective. In ESRD there is significant disarrangement of hemostatic system functionality, which is reflected in endothelial dysfunction and disturbed (reduced) platelet functionality, the presence of procoagulant condition that is manifested by elevated thrombin activity, increased levels of clotting factors and reduced fibrinolytic activity. More frequent presence of total previous thrombosis (arterial and venous), higher frequency of isolated venous thrombosis and frequent presence of thrombophilia presented by the deficit of PC, the presence of resistance to APC, presence of anticardiolipin antiphospholipid antibodies IgM, heterozygous FV G1691A polymorphism, homozygous mutation FII G201210A and lower value of collagen induced platelet aggregation are the markers in our study which are significantly more frequent in patients with thrombosis/dysfunction of AVF for hemodialysis during its maturation. Thrombophilia is present in 48.8% of patients with ESRD, however our study does not determine its impact on early thrombosis/dysfunction of AVF except in the group of patients with combined thrombophilia. A small number of bleeding complications in our study points to the safety of the applied preventive regimen. Based on the obtained results, prophylactic use of ticlopidine or nadroparin-calcium in preventive doses can be recommended for patients with ESRD immediately after AVF creation. Prophylactic treatment of thrombotic complications in patients with newly created AVF is recommended especially in patients who have had previous thrombosis and/or clinical manifestations of atherosclerotic cardiovascular diseases." ]
sr (latin script)
Универзитет у Новом Саду, Медицински факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Новом Саду
[ "hronična bubrežna insuficijencija", "arteriovenska fistula", "tromboza", "vaskularni pristup za dijalizu", "antikoagulansi" ]
[ "Renal Insufficiency", "Chronic", "Arteriovenous Fistula", "Thrombosis", "Vascular Access Devices", "Anticoagulants" ]
[ "Uticaj različitih antitromboznih lekova na prevenciju nastanka rane tromboze arteriovenskih fistula za hemodijalizu kod bolesnika sa terminalnom bubrežnom insuficijencijom" ]
[ "The use of different antithrombotic drugs for the prevention of early thrombosis of arteriovenous fistula for hemodialysis in patients with end stage renal disease" ]
doctoralThesis
[ "BY-NC-ND" ]
Митић, Горана; Ђурђевић-Мирковић, Татјана; Божић, Душан; Вучковић-Радуловић, Биљана; Петровић, Дејан; Пастернак, Јанко; Филипов, Предраг; Утицај различитих антитромбозних лекова на превенцију настанка ране тромбозе артериовенских фистула за хемодијализу код болесника са терминалном бубрежном инсуфицијенцијом; Утицај различитих антитромбозних лекова на превенцију настанка ране тромбозе артериовенских фистула за хемодијализу код болесника са терминалном бубрежном инсуфицијенцијом;
[ "https://nardus.mpn.gov.rs/bitstream/id/35272/IzvestajKomisije8397.pdf", "http://nardus.mpn.gov.rs/bitstream/id/35271/Disertacija8397.pdf", "http://nardus.mpn.gov.rs/bitstream/id/35272/IzvestajKomisije8397.pdf", "https://nardus.mpn.gov.rs/bitstream/id/35271/Disertacija8397.pdf", "http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija148457191458789.pdf?controlNumber=(BISIS)104107&fileName=148457191458789.pdf&id=7173&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_7981" ]
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https://nardus.mpn.gov.rs/handle/123456789/8749
123456789-8749.pdf
yes
no
http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija146536427068740.pdf?controlNumber=(BISIS)101166&fileName=146536427068740.pdf&id=5938&source=NaRDuS&language=sr
no
Prinos i kvalitet mladog krompira u zavisnosti od agrotehničkih mera i agroekoloških uslova proizvodnje
Yield and quality of early potato dependingTI on agricultural practices and argoecological condicions
[ "Ilin, Žarko", "Pejić, Borivoj" ]
[ "Crnobarac, Jovan", "Žnidarčić, Dragan", "Broćić, Zoran" ]
Vujasinović, Vuk
2017-10-30T14:40:01
[ "2017-10-30T14:40:01", "2020-07-03T13:32:12" ]
2016-09-23
[ "https://nardus.mpn.gov.rs/handle/123456789/8749", "http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija146536427068740.pdf?controlNumber=(BISIS)101166&fileName=146536427068740.pdf&id=5938&source=NaRDuS&language=sr", "http://www.cris.uns.ac.rs/record.jsf?recordId=101166&source=NaRDuS&language=sr", "http://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije14653642707150.pdf?controlNumber=(BISIS)101166&fileName=14653642707150.pdf&id=5939&source=NaRDuS&language=sr" ]
[ "Proizvodnja mladog krompira u Srbiji je značajna zbog obezbeđenja ove izuzetno cenjene i delikatesne namirnice u periodu od aprila do juna kada je u ponudi na tržištu malo drugog svežeg povrća. Osim toga cena mladog krompira je uglavnom visoka, pa je značaj i po osnovu profitabilnosti ove kulture velik. U periodu 2004-2006. godine ispitivan je efekat malčovanja polietilenskom folijom i neposrednog pokrivanja biljaka sa i bez noseće konstrukcije, kao i kombinacija ovih specifičnih agrotehničkih mera na ranostasnost, prinos i komponente prinosa i kvalitet mladog krompira kod ranih sorti Cleopatra i Riviera. U cilju rešavanja postavljenog zadatka sprovedeno je istraživanje, na lokalitetu južno bačkog okruga (Begeč), postavljen je dvofaktorijalni ogled po split plot planu u pet ponavljanja. Ispitivane agrotehničke mere i njihove kombinacije značajno su uticale na ranostasnost i prinos mladog krompira. Formiranje tržišnih krtola (krtole veće od 28 mm) bilo je za 10-15 dana ranije u odnosu na kontrolnu (nepokrivenu) varijantu. Najveći prinos u trogodišnjem istraživanju postignut je na varijanti agrotekstil+niski tunel (40,07 t/ha). U odnosu na kontrolnu varijantu, prinos je bio veći za 19% (u prvoj godini za 22%, drugoj za 16%, dok je u trećoj godini prinos bio veći za 18%). Najveći broj krtola mladog krompira, u trogodišnjem istraživanju, ostvaren je na kontrolnoj varijanti (9,43), stim što je udeo tržišnih krtola (krtole veće od 28 mm) na kontroli iznosio 89% naspram 95% ostvaren na pokrivenim varijantama. Riviera je ostvarila veći broj krtola po biljci u odnosu na Cleopatru. Ispitivane agrotehničke mere uticale su na povećanje mase krtola po biljci. Najveća masa krtola po biljci u trogodišnjem ogledu ostvaren je na tretmanima agrotekstil+niski tunel (853,17 g) i malčovanje+agrotekstil+niski tunel (850,17 g), dok je najmanja masa zabeležena na kontrolnoj varijanti (640 g). Sorta Riviera je ostvarila značajno veću masu krtola u odnosu na Cleopatru. Ispitivani tretmani su ostvarili veću prosečnu masu jedne krtole za 52% u odnosu na kontrolnu varijantu. Ispitivani tretmani značajno su uticali i na kvalitet mladog krompira; odnosno na povećanje sadržaja suve materije, skroba, vitamina C, celuloze i pepela u krtolama, a na smanjenje sadržaja šećera i nitrata." ]
[ "Production of early potato in Republic of Serbia is important because it provides this highly valued delicates food during the period from April to June, when there is low offer of other fresh vegetables on the market. Besides, price of early potato is usually high so it is important as profitable crop. During the period 2004-2006 effect of mulching with polyethylene foil and direct coverage of plants with agrotextile and low tunnel, as well as combinations of these specific agricultural measures on earliness, yield and yield components and quality of two early potato varieties Cleopatra and Riviera was examined. In order to achieve given objective research was conducted at the site in South Bačka District (Begeč), it set up the two-factorial experiment at split plot plan in five replications. The tested of agricultural measures and their combinations significantly influenced earliness and yield of early potato. The forming of market tubers (tubers larger than 28 mm) was 10-15 days earlier than on the control variant (bare soil and uncover plants). The highest yield of the three-year study has been made on the variant combination of agrotextile and low tunnel (40,07 t/ha). Compared to the control variant, the yield was increased by 19% (in the first year increase of 22%, second year increase was 16%, while in the third year yield increase was 18%). The largest number of tubers of early potatoes, in three-year study, has been on the control variant (9,43), but the share of market tubers (tubers larger than 28 mm) on the control variant was 89% versus 95% achieved in covered variants. Variety Riviera has achieved greater number of tubers per plant compared to variety Cleopatra. The tested agricultural measures affected mass increase of tubers per plant. The maximum weight of tubers per plant in the three-year experiment was realized in the treatment combination of agrotextile and low tunnel (853,17 g) and combination of mulching, agrotextile and low tunnel (850,17 g), while the lowest mass was recorded in the control variant (640 g). Variety Riviera has achieved significantly higher tuber weight relative to Cleopatra. The tested treatments have also achieved a higher average weight of a tuber of 52% compared to the control variant. The tested treatments significantly influenced quality of early potato; i.e. the increase the content of dry matter, starch, vitamin C, cellulose and ash in the tubers and on reduction of sugar and nitrate content." ]
sr (latin script)
Универзитет у Новом Саду, Пољопривредни факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-sa/4.0/" ]
Универзитет у Новом Саду
[ "mladi krompir", "malčovanje", "agrotekstil", "niski tunel", "prinos", "kvalitet" ]
[ "early potato", "mulching", "agrotextile", "SKW low tunnel", "yield", "quality" ]
[ "Prinos i kvalitet mladog krompira u zavisnosti od agrotehničkih mera i agroekoloških uslova proizvodnje" ]
[ "Yield and quality of early potato dependingTI on agricultural practices and argoecological condicions" ]
doctoralThesis
[ "BY-NC-SA" ]
Илин, Жарко; Пејић, Боривој; Броћић, Зоран; Црнобарац, Јован; Жнидарчић, Драган; Вујасиновић, Вук; Принос и квалитет младог кромпира у зависности од агротехничких мера и агроеколошких услова производње; Принос и квалитет младог кромпира у зависности од агротехничких мера и агроеколошких услова производње;
[ "http://nardus.mpn.gov.rs/bitstream/id/35763/Disertacija13404.pdf", "https://nardus.mpn.gov.rs/bitstream/id/35763/Disertacija13404.pdf", "https://nardus.mpn.gov.rs/bitstream/id/35764/IzvestajKomisije13404.pdf", "http://nardus.mpn.gov.rs/bitstream/id/35764/IzvestajKomisije13404.pdf", "http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija146536427068740.pdf?controlNumber=(BISIS)101166&fileName=146536427068740.pdf&id=5938&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_8749" ]
[ "" ]
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[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/8742
123456789-8742.pdf
yes
no
http://nardus.mpn.gov.rs/bitstream/id/35798/Disertacija13394.pdf
no
Процена резерви органске материје у земљиштима Србије
Procena rezervi organske materije u zemljištima Srbije
[ "Manojlović, Maja" ]
[ "Nešić, Ljiljana", "Đorđević, Aleksandar", "Lalić, Branislava", "Savić, Radovan" ]
Vidojević, Dragana
2017-10-30T14:39:41
[ "2017-10-30T14:39:41", "2020-07-03T13:32:19" ]
2016-05-09
[ "https://nardus.mpn.gov.rs/handle/123456789/8742", "http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija14531139769567.pdf?controlNumber=(BISIS)99871&fileName=14531139769567.pdf&id=4828&source=NaRDuS&language=sr", "http://www.cris.uns.ac.rs/record.jsf?recordId=99871&source=NaRDuS&language=sr", "http://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije145311697369578.pdf?controlNumber=(BISIS)99871&fileName=145311697369578.pdf&id=4830&source=NaRDuS&language=sr" ]
[ "Ово истраживање има за циљ да процени резерве органског угљеника у земљишту и представи његову просторну дистрибуцију у земљиштима Републике Србије, као и да утврди зависност садржаја органског угљеника у земљишту од типа земљишта, температуре, падавина, надморске висине, начина коришћења земљишта и морфогенетских карактеристика рељефа. Резерве органског угљеника у земљишту процењене су за слој 0-30 cm и 0-100 cm дубине на основу резултата из базе података уз коришћење педолошке карте и карте коришћења земљишта. За потребе утврђивања зависности садржаја органског угљеника и типа земљишта педолошка карта Србије је прилагођена WRB класификацији и садржи 15.437 полигона. Примењена методологија за процену резерве органског угљеника за дату дубину је базирана на сумирању резерве органског угљеника по слојевима земљишта која се добија на основу запреминске масе, вредности садржаја органског угљеника и дебљине слоја. Прорачун је урађен за сваки профил посебно, затим је урађена калкулација за сваку референтну групу земљишта на основу резултата средњих вредности садржаја органског угљеника до 30 cm и 100 cm дубине за главне референтне групе и њихових површина. На основу површина референтних група земљишта, површине Републике Србије и вредности садржаја за сваку референтну групу, добијене су укупне резерве органског угљеника до 30 cm дубине које износе 0,71 Pg. Резултати анализе резерве органског угљеника до 100 cm дубине показују вредност 1,16 Pg. На основу Corine Land Cover (CLC) базе података за 2006. годину издвојене су површине главних категорија начина коришћења земљишта. На основу резултата средњих вредности садржаја органског угљеника до 30 и 100 cm дубине и површине коју заузима Corine Land Cover категорија начина коришћења земљишта израчуната је укупна вредност резерве органског угљеника за пољопривредна земљишта, шуме и полуприродна подручја и вештачке површине. Резултати показују да су резерве органског угљеника у оквиру категорије пољопривредних површина 303,22 x 1012g (Tg) до 30 cm дубине и 600,25 x 1012g (Tg) до 100 cm дубине. Категорије шуме и полуприродна подручја имају резерве од основних климатских елемената температуре и падавина и надморске висине показује да постоји средње јака до јака статистичка зависност у оквиру испитивања реализованих до 30 и 100 cm дубине. органског угљеника 345,26 x 1012g (Tg) угљеника до 30 cm и 457,55 x 1012g (Tg) до 100 cm дубине. Резултати показују вредности резерве органског угљеника у категорији вештачке површине која углавном обухватају локалитете у оквиру зелених урбаних подручја и рекреационих површина 19,21 x 1012g (Tg) до 30 cm и 41,50 x 1012g (Tg) до 100 cm дубине. Анализа садржаја резерве органског угљеника према начину коришћења земљишта показује да су вредности садржаја органског угљеника веће у шумама и полуприродним подручјима у односу на пољопривредне површине и то за 40,71 % до 30 cm, односно за 11,43 % до 100 cm дубине. Прорачун губитка резерве органског угљеника у земљишту на подручјима где је извршена пренамена пољопривредних површина, шума и полуприродних подручја у урбано земљиште, без категорије зелена урбана подручја, у периоду 1990-2006. године показује укупну вредности од 0,92 Mt С, односно 1,49 Mt С за дубинe до 30 cm, односно до 100 cm. Утврђивање статистичке зависности садржаја органског угљеника у земљиштуод основних климатских елемената температуре и падавина и надморске висине показује да постоји средње јака до јака статистичка зависност у оквиру испитивања реализованих до 30 и 100 cm дубине. Прорачун садржаја резерве органског угљеника у земљишту у зависности од морфометријских карактеристика рељефа показујe да резерва садржаја органског угљеника у земљишту расте са порастом надморске висине. Највеће средње вредности садржаја измерене су на терену који обухвата планине са надморским висинама од 1.000-2.000 m и који обухвата 11,5 % територије Републике Србије", "Ovo istraživanje ima za cilj da proceni rezerve organskog ugljenika u zemljištu i predstavi njegovu prostornu distribuciju u zemljištima Republike Srbije, kao i da utvrdi zavisnost sadržaja organskog ugljenika u zemljištu od tipa zemljišta, temperature, padavina, nadmorske visine, načina korišćenja zemljišta i morfogenetskih karakteristika reljefa. Rezerve organskog ugljenika u zemljištu procenjene su za sloj 0-30 cm i 0-100 cm dubine na osnovu rezultata iz baze podataka uz korišćenje pedološke karte i karte korišćenja zemljišta. Za potrebe utvrđivanja zavisnosti sadržaja organskog ugljenika i tipa zemljišta pedološka karta Srbije je prilagođena WRB klasifikaciji i sadrži 15.437 poligona. Primenjena metodologija za procenu rezerve organskog ugljenika za datu dubinu je bazirana na sumiranju rezerve organskog ugljenika po slojevima zemljišta koja se dobija na osnovu zapreminske mase, vrednosti sadržaja organskog ugljenika i debljine sloja. Proračun je urađen za svaki profil posebno, zatim je urađena kalkulacija za svaku referentnu grupu zemljišta na osnovu rezultata srednjih vrednosti sadržaja organskog ugljenika do 30 cm i 100 cm dubine za glavne referentne grupe i njihovih površina. Na osnovu površina referentnih grupa zemljišta, površine Republike Srbije i vrednosti sadržaja za svaku referentnu grupu, dobijene su ukupne rezerve organskog ugljenika do 30 cm dubine koje iznose 0,71 Pg. Rezultati analize rezerve organskog ugljenika do 100 cm dubine pokazuju vrednost 1,16 Pg. Na osnovu Corine Land Cover (CLC) baze podataka za 2006. godinu izdvojene su površine glavnih kategorija načina korišćenja zemljišta. Na osnovu rezultata srednjih vrednosti sadržaja organskog ugljenika do 30 i 100 cm dubine i površine koju zauzima Corine Land Cover kategorija načina korišćenja zemljišta izračunata je ukupna vrednost rezerve organskog ugljenika za poljoprivredna zemljišta, šume i poluprirodna područja i veštačke površine. Rezultati pokazuju da su rezerve organskog ugljenika u okviru kategorije poljoprivrednih površina 303,22 x 1012g (Tg) do 30 cm dubine i 600,25 x 1012g (Tg) do 100 cm dubine. Kategorije šume i poluprirodna područja imaju rezerve od osnovnih klimatskih elemenata temperature i padavina i nadmorske visine pokazuje da postoji srednje jaka do jaka statistička zavisnost u okviru ispitivanja realizovanih do 30 i 100 cm dubine. organskog ugljenika 345,26 x 1012g (Tg) ugljenika do 30 cm i 457,55 x 1012g (Tg) do 100 cm dubine. Rezultati pokazuju vrednosti rezerve organskog ugljenika u kategoriji veštačke površine koja uglavnom obuhvataju lokalitete u okviru zelenih urbanih područja i rekreacionih površina 19,21 x 1012g (Tg) do 30 cm i 41,50 x 1012g (Tg) do 100 cm dubine. Analiza sadržaja rezerve organskog ugljenika prema načinu korišćenja zemljišta pokazuje da su vrednosti sadržaja organskog ugljenika veće u šumama i poluprirodnim područjima u odnosu na poljoprivredne površine i to za 40,71 % do 30 cm, odnosno za 11,43 % do 100 cm dubine. Proračun gubitka rezerve organskog ugljenika u zemljištu na područjima gde je izvršena prenamena poljoprivrednih površina, šuma i poluprirodnih područja u urbano zemljište, bez kategorije zelena urbana područja, u periodu 1990-2006. godine pokazuje ukupnu vrednosti od 0,92 Mt S, odnosno 1,49 Mt S za dubine do 30 cm, odnosno do 100 cm. Utvrđivanje statističke zavisnosti sadržaja organskog ugljenika u zemljištuod osnovnih klimatskih elemenata temperature i padavina i nadmorske visine pokazuje da postoji srednje jaka do jaka statistička zavisnost u okviru ispitivanja realizovanih do 30 i 100 cm dubine. Proračun sadržaja rezerve organskog ugljenika u zemljištu u zavisnosti od morfometrijskih karakteristika reljefa pokazuje da rezerva sadržaja organskog ugljenika u zemljištu raste sa porastom nadmorske visine. Najveće srednje vrednosti sadržaja izmerene su na terenu koji obuhvata planine sa nadmorskim visinama od 1.000-2.000 m i koji obuhvata 11,5 % teritorije Republike Srbije" ]
[ "The aim of this study was to quantify current SOC stocks and present the spatial distribution of organic carbon (SOC) in the soils of Republic of Serbia. The relation of SOC content to soil type, temperature, precipitation, altitude, land use and topography was investigated. Organic carbon stocks were estimated for soil layers 0-30 cm and 0-100 cm based on the results from a database and using soil and land use maps. To establish the relationship between organic carbon content and soil type, a soil map of Serbia was adapted to the WRB classification and divided into 15,437 polygons (map units). The methodology for SOC stocks estimation was based on bulk density, organic carbon content and thickness of the analyzed soil layers. We calculated the values for each reference soil group based on mean values of SOC at 0-30 and 0-100 cm in the main reference groups and their areas. Based on the size of the reference groups, total area of Republic of Serbia, and the SOC values for each reference group, we calculated the total SOC stocks. The obtained values for the soil layers 0-30 cm and 0-100 cm amounted to 0,71 Pg and 1,16 Pg respectively. Using Corine Land Cover (CLC) database for 2006, we defined areas of the major categories of land use. Based on the obtained mean values of organic carbon content at 0-30 and 0-100 cm and the areas indicated by Corine Land Cover categories of land use, we calculated the organic carbon stocks in agricultural land, forest land, semi-natural areas, and artificial areas. The results showed that the organic carbon stocks in the category of agricultural land were 303.22 x 1012 g (Tg) and 600.25 x 1012 g (Tg) at 0-30 cm and 0-100 cm, respectively. In the category of forests and semi-natural areas, the organic carbon stocks were 345.26 x 1012 g (Tg) and 457.55 x 1012 g (Tg) at 0-30 cm and 0-100 cm, respectively. In the category of artificial areas, which mainly included sites within urban green areas and recreational areas, the organic carbon stocks were 19.21 x 1012 g (Tg) and 41.50 x 1012 g (Tg) at 0-30 cm and 0-100 cm, respectively. The map of organic carbon distribution depending on land use method indicated that organic carbon stocks were higher in forests and semi-natural areas than in agricultural land, up to 40.71% and 11.43% at 0-30 cm and 0-100 cm, respectively. SOC loss amount to 0,92 Mt С at 0-30 cm layer and 1,49 Mt С at 0-100 cm layer in the period 1990-2006 as a results of conversion from agricultural land, forestland and semi-natural areas to artificial areas. For soil layers 0-30 and 0-100 cm, a medium to strong statistical relationship between temperature, precipitation and altitude and amount of organic carbon in soil is indicated. The soil organic carbon density was significantly affected by altitude. SOC content increased with increasing altitude. The highest mean values of organic carbon content were found in the mountainous areas within the elevation of 1000-2000 m, which covers 11,5 % of the territory of the Republic of Serbia." ]
sr (cyrillic script)
Универзитет у Новом Саду, Пољопривредни факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc/4.0/" ]
Универзитет у Новом Саду
[ "Органска материја земљишта", "Organska materija zemljišta", "organski ugljenik zemljišta", "tip zemljišta", "klima", "način korišćenja zemljišta", "органски угљеник земљишта", "тип земљишта", "клима", "начин коришћења земљишта" ]
[ "Soil organic matter", "soil organic carbon", "soil type", "climate", "land use" ]
[ "Процена резерви органске материје у земљиштима Србије" ]
[ "Procena rezervi organske materije u zemljištima Srbije", "Estimation of soil organic matter in the soils of Serbia" ]
doctoralThesis
[ "BY-NC" ]
Манојловић, Маја; Нешић, Љиљана; Ђорђевић, Aлександар; Лалић, Бранислава; Савић, Радован; Видојевић, Драгана; Procena rezervi organske materije u zemljištima Srbije;
[ "https://nardus.mpn.gov.rs/bitstream/id/35799/IzvestajKomisije13394.pdf", "http://nardus.mpn.gov.rs/bitstream/id/35798/Disertacija13394.pdf", "http://nardus.mpn.gov.rs/bitstream/id/35799/IzvestajKomisije13394.pdf", "https://nardus.mpn.gov.rs/bitstream/id/35798/Disertacija13394.pdf", "http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija14531139769567.pdf?controlNumber=(BISIS)99871&fileName=14531139769567.pdf&id=4828&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_8742" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/11239
123456789-11239.pdf
yes
no
http://nardus.mpn.gov.rs/bitstream/id/35243/Disertacija.pdf
no
Ispitivanje 8-hidroksi-2-deoksiguanozina, produkata lipidne peroksidacije i aktivnosti antioksidativnih enzima kod prekanceroznih lezija i u karcinomu grlića materice
Analysis of 8-hydroxy-2-deoxyguanosine, lipid peroxidation products and activity of antioxidative enzymes in precancerous lesions and in cervical cancer
[ "Srđenović-Čonić, Branislava", "Mandić, Aljoša" ]
[ "Đurđević, Srđan", "Suđi, Jan", "Purać, Jelena", "Srđenović-Čonić, Branislava", "Mandić, Aljoša" ]
Jelić, Marija
2019-07-18T12:48:03
[ "2019-07-18T12:48:03", "2020-07-03T13:27:52" ]
2019-06-21
[ "https://nardus.mpn.gov.rs/handle/123456789/11239", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija155230505728641.pdf?controlNumber=(BISIS)110296&fileName=155230505728641.pdf&id=12688&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/record.jsf?recordId=110296&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije155230506719620.pdf?controlNumber=(BISIS)110296&fileName=155230506719620.pdf&id=12689&source=NaRDuS&language=sr" ]
[ "U organizmu se, pod fiziološkim uslovima, produkuju slobodni radikali. Iako se u organizmu nalaze u veoma niskoj koncentraciji, slobodni radikali mogu ispoljiti toksične efekte. Težeći da spare elektrone, u hemijskoj reakciji oksidacije, dolazi do brzog i nepredvidivog vezivanja za susedne molekule, proteine, lipide, ugljene hidrate i nukleinske kiseline od kojih su sačinjeni strukturni elementi ćelije, pokrećući unutrašnji put apoptoze. Antioksidansi su supstance koje sprečavaju ili značajno smanjuju oksidaciju biomolekula. Oksidativni stres je stanje koje nastaje kada produkcija slobodnih radikala premaši kapacitete antioksidativnih enzima da ih neutrališu. U antioksidativne enzime spadaju: superoksid dismutaza (SOD), katalaza (CAT), glutation peroksidaza (GPx), glutation reduktaza (GR) i glutation-S-transferaza (GST). Lipidna peroksidacija (LP) je proces oksidacije višestruko nezasićenih masnih kiselina od strane slobodnih radikala. Malondialdehid predstavlja biohemijski marker pomoću kog je moguće meriti stepen oksidativnog oštećenja ćelijskih membrana. Oksidativna modifikacija DNK dovodi do promene strukture DNK koje rezultuju genetskim oštećenjima. Najčešće korišćen marker oksidativnog stresa je urinarni 8-hidroksi-2-deoksiguanozin (8-OHdG). Oštećenja proteina, lipida, DNK čine važan osnov mnogih oboljenja kao što su ateroskleroza, neurodegenerativna oboljenja, dijabetes, gojaznost, proces starenja, retinopatija, hronične inflamatorne bolesti i karcinom. Polazeći od hipoteze da su ovi biomolekuli različiti u različitim stadijumima bolesti, oni bi mogli predstavljati prognostički marker proširenosti bolesti. Cilj istraživanja je bio da se ispita da li postoje razlike između kontrolne grupe (zdravih žena), pacijentkinja sa prekanceroznim lezijama na grliću materice (HSIL), pacijentkinja sa lokalno ograničenim (FIGO Ia-Ib) i pacijentkinja sa lokalno uznapredovalim karcinomom grlića materice (IIa-IV) u pokazateljima oštećenja DNK (određivanjem vrednosti 8-OHdG), pokazateljima oksidativnog stresa (određivanjem intenziteta lipidne peroksidacije (TBARS)), pokazateljima antioksidativne odbrane (određivanjem aktivnosti antioksidativnih enzima superoksid dismutaze (SOD), katalaze (CAT), glutation peroksidaze (GPx), glutation reduktaze (GR) i glutation-S-transferaze (GST)). Pored toga, cilj istraživanja je bio da se uporede vrednosti 8-OHdG, proizvoda lipidne peroksidacije (TBARS) i aktivnosti antioksidativnih enzima (SOD, CAT, GST, GPx, GR) unutar grupe pacijentkinja sa lokalno ograničenim karcinomom grlića materice podeljenih u dve podgrupe sa niskim i visokim rizikom u odnosu na relaps bolesti. Takođe, u radu je koreliran nivo 8-OHdG, MDA i antioksidativnih enzima sa relapsom bolesti. Istraživanje je izvedeno na Klinici za operativnu onkologiju, odeljenje za ginekologiju na Institutu za onkologiju Vojvodine, Zavodu za farmaciju Medicinskog fakulteta u Novom Sadu i Zavodu za zdravstvenu zaštitu radnika Novi Sad u periodu od 2013. godine do 2017. godine. Od ispitanica su prikupljani uzorci krvi i urina, pripremljeni na adekvatan način i čuvani na -80° do analiza. Aktivnost enzima antioksidativne zaštite, kao i intenzitet lipidne peroksidacije određivani su spektrofotometrijskim metodama, a koncentracija 8-OhdG određivana je gasnom hromatografijom uz masenu detekciju. Za sprovođenje istraživanja dobijena je saglasnost Etičkog odbora Instituta za onkologiju Vojvodine. Pokazano je da postoje statistički značajne razlike između kontrolne grupe (zdravih žena), pacijentkinja saprekanceroznim lezijama na grliću materice (HSIL), pacijentkinja sa lokalno ograničenim (FIGO Ia-Ib) u odnosu napacijentkinje sa lokalno uznapredovalim karcinomom grlića materice (IIa-IV) u pokazateljima oštećenja DNK (koncentracija 8-OHdG), pokazateljima oksidativnog stresa (intenziteta lipidne peroksidacije (TBARS)), pokazateljima antioksidativne odbrane (aktivnosti antioksidativnih enzima SOD, CAT i GST). Nisu pokazane razlike između ispitivanih grupa u aktivnosti enzima glutation peroksidaze (GPx) i glutation reduktaze (GR). Nisu pronađene razlike u koncentraciji 8-OHdG, proizvoda lipidne peroksidacije (TBARS) i aktivnosti antioksidativnih enzima (SOD, CAT, GST, GPx i GR) unutar grupe pacijentkinja sa lokalno ograničenim karcinomom grlića materice podeljenih u dve podgrupe sa niskim i visokim rizikom u odnosu na relaps bolesti. Aktivnosti CAT i GST bile najbolji prediktori rekurencije bolesti kod definisanih pacijentkinja. Na osnovu aktivnosti ova dva oksidativna enzima, separacija grupe pacijentkinja kod kojih nije došlo do rekurencije bolesti nakon perioda praćenja od ostale dve grupe kod kojih je došlo do rekurencije bolesti je bila moguća. Na osnovu dobijenih rezultata zaključuje se da je moguće koristiti navedene biomarkere kao dijagnostičke markere kod pacijentkinja sa karcinomom grlića materice. Ovi biomolekuli mogu pomoći lakšem svrstavanju pacijentkinja u određene grupe prema stadijumu bolesti, a sledstveno i bržem odabiru odgovarajućeg lečenja. Pored toga, pokazano je da su aktivnosti enzima CAT i GST prediktori rekurencije bolesti kod definisanih grupa pacijentkinja." ]
[ "Free radicals are produced in our body under physiological conditions. Although in very low concentrations, they can show some toxic effects. While trying to bind electrons, in the chemical reaction of oxidation, they rapidly and unpredictably bind to adjacent molecules- proteins, lipids, carbohydrates and nucleic acids from which the structural elements of the cell are made, triggering the internal pathway of apoptosis. Antioxidants are substances that prevent or significantly reduce the oxidation of biomolecules. Oxidative stress is a condition that occurs when the production of free radicals exceeds the capacity of antioxidant enzymes to neutralize them. The antioxidant enzymes include: superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), and glutathione-S-transferase (GST). Lipid Peroxidation (LP) is the process of oxidation of polyunsaturated fatty acids by free radicals. Malondialdehyde is a biochemical marker by which it is possible to measure the degree of oxidative damage of cell membranes. The oxidative modification of DNA leads to a change in DNA structure that results in genetic damage. The most commonly used marker of oxidative stress is urinary 8-hydroxy-2-deoxiguanosine (8-OHdG). The damage to proteins, lipids and DNA is an important basis for many diseases such as atherosclerosis, neurodegenerative diseases, diabetes, obesity, aging, retinopathy, chronic inflammatory disease and cancer. Starting from the hypothesis that these biomolecules are different at different stages of the disease, they could represent a prognostic marker of the progression of the disease. The aim of the study was to examine whether there were differences between the control group (healthy women), the patients with precancerous lesions on the cervix (HSIL), the patients with early stage cervical cancer (FIGO Ia-Ib) and the patient with locally advanced cervical cancer (IIa - IV) in the indicators of DNA damage (determining the value of 8-OHdG), indicators of oxidative stress (by determining the lipid peroxidation intensity (TBARS)), indicators of antioxidant defense (by determining the activity of antioxidative enzymes of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase GPx), glutathione reductase (GR), and glutathione-S-transferase (GST)). In addition, the aim of the study was to compare the values of 8- OHdG, lipid peroxidation products (TBARS) and the activity of antioxidant enzymes (SOD, CAT, GST, GPx, GR) within the group of patients with early stage cervical cancer divided into two subgroups- with low and high risk in relation to the relapse of the disease. The research was performed at the Clinic for operative oncology, Department of Gynecology at the Institute of Oncology of Vojvodina, Medical Faculty in Novi Sad, Department of Pharmacy and the Institute for Health Care of Novi Sad in the period from 2013 to 2017. Samples of blood and urine of the patients were collected, prepared adequately and stored at -80 ° until the analysis. The activity of the antioxidant enzymes as well as the lipid peroxidation were determined by spectrophotometric methods, and the concentration of 8-OHdG was determined by gas chromatography with mass detection. The approval of the Ethical Committee of the Institute for Oncology of Vojvodina was obtained before conducting the research. It has been shown that there are statistically significant differences between the control group (healthy women), patient with precancerous cervical lesions (HSIL), the patients with early stage cervical cancer (FIGO Ia-Ib) compared to a group of patients with locally advanced cervical cancer (IIa-IV) in indicators of damage to DNA (concentration of 8-OHdG), indicators of oxidative stress (lipid peroxidation (TBARS)), indicators of antioxidant defense (activities of antioxidant enzymes SOD, CAT and GST). There was no difference between the groups in activity of glutathione peroxidase enzyme (GPx) and glutathione reductase (GR). There were no differences in the concentration of 8-OHdG, lipid peroxidation products (TBARS) and the activity of antioxidant enzymes (SOD, CAT, GST, GPx and GR) within the group of patients with locally restricted cervical cancer divided into two subgroups with low and high risk in relation on relapses of the disease. CAT and GST activities were the best predictors of disease recurrence among defined groups. Based on the activities of these two oxidative enzymes, the separation of the group of patients who did not experience disease recurrence after a follow-up period from the other two groups in which recurrence of the disease occurred was possible. Based on the obtained results it is concluded that it is possible to use the studied biomarkers as diagnostic markers in patients with cervical cancer. These biomolecules can help in the patient's classification into certain groups according to the stage of the disease, and consequently the more efficient choice of appropriate treatment. In addition, CAT and GST enzyme activity have been shown to be predictors of disease recurrence in defined patient groups." ]
sr (latin script)
Универзитет у Новом Саду, Медицински факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Новом Саду
[ "oksidativni stres", "antioksidansi", "lipidna peroksidacija", "tumorski biomarkeri", "neoplazme grlića materice", "stadijum neoplazmi", "lokalna rekurencija tumora", "prognoza" ]
[ "Oxidative Stress", "Tumor", "Local", "Uterine Cervical Neoplasms", "Neoplasm Staging", "Neoplasm Recurrence", "Antioxidants", "Lipid Peroxidation", "Biomarkers", "Prognosis" ]
[ "Ispitivanje 8-hidroksi-2-deoksiguanozina, produkata lipidne peroksidacije i aktivnosti antioksidativnih enzima kod prekanceroznih lezija i u karcinomu grlića materice" ]
[ "Analysis of 8-hydroxy-2-deoxyguanosine, lipid peroxidation products and activity of antioxidative enzymes in precancerous lesions and in cervical cancer" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "https://nardus.mpn.gov.rs/bitstream/id/35244/IzvestajKomisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/35243/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/35243/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/35244/IzvestajKomisije.pdf", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija155230505728641.pdf?controlNumber=(BISIS)110296&fileName=155230505728641.pdf&id=12688&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11239" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
[ "" ]
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[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/12063
123456789-12063.pdf
yes
no
https://nardus.mpn.gov.rs/bitstream/id/36288/Disertacija.pdf
no
Економски инструменти за управљање климатским ризицима у ратарској производњи Републике Србије
Ekonomski instrumenti za upravljanje klimatskim rizicima u ratarskoj proizvodnji Republike Srbije
[ "Zekić, Vladislav" ]
[ "Tica, Nedeljko", "Kovačević, Vlado", "Subić, Jonel", "Marković, Todor" ]
Jeločnik, Marko
2020-02-26T16:23:34
[ "2020-02-26T16:23:34", "2020-07-03T13:33:58" ]
2017-10-25
[ "https://nardus.mpn.gov.rs/handle/123456789/12063", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija156809437300419.pdf?controlNumber=(BISIS)111131&fileName=156809437300419.pdf&id=13368&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/record.jsf?recordId=111131&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije156809438093449.pdf?controlNumber=(BISIS)111131&fileName=156809438093449.pdf&id=13369&source=NaRDuS&language=sr" ]
[ "Ратарска производња значајно доприноси одрживости и конкурентности националне пољопривреде. У исто време, производња ратарских усева се сучељава са све израженијом варијабилношћу климатских фактора и временских услова, пре свега са променама унутар температурног режима и неуравнотеженошћу просторног и временског распореда падавина, које постепено постају ограничавајући фактор њеног даљег развоја. Сходно присуству климатских ризика, произвођачима ратарских усева је доступно неколико мера чијом применом могу умањити њихов утицај, те адекватно заштитити своју производњу, односно очекиване приносе и приходе. У групи агротехничких мера примат се даје наводњавању, док се као економске мере најчешће појављују осигурање усева и трговина финансијским (временским) дериватима у земљама развијене економије. Са аспекта доносиоца одлука на газдинству, присуство, избор и имплементација расположивих мера се најчешће заснива на њиховој економској ефективности и прихватљивости. Ослањајући се на процену утицаја климатских промена, превасходно присуство феномена суше и њима изазваних штета на ратарску производњу, анализиране су неке од могућности унапређења сегмента управљања ризиком недостатка падавина у националној пољопривреди. Оне укључују ширу примену агро-техничке мере наводњавања и специфичних производа осигуравајућих кућа (осигурања од суше), те могућности установљавања одређених финансијских инструмената ванберзанског и берзанског тржишта (временских деривата) на територији Републике Србије. Истраживање је кроз анализу стања показало да пољопривредници не користе у довољној мери расположиве алтернативе. Како би се анализирали узроци недовољне примене алтернативних модела спроведено је анкетно истраживање на пољопривредним газдинствима. Уз осврт на потенцијални утицај Заједничке пољопривредне политике Европске уније на националну аграрну политику (померање тежишта са тржишних интервенција на адекватне механизме приступа инструментима за управљање производним ризицима - моделу субвенција), а индиректно и на појединачна газдинства, извршена је оцена економске ефективности заштите ратарске производње куповином полисе осигурања од суше, односно оцена економске ефективности имплементације и коришћења система за наводњавање на условно малим и великим газдинствима доминантно окренутим ратарству.", "Ratarska proizvodnja značajno doprinosi održivosti i konkurentnosti nacionalne poljoprivrede. U isto vreme, proizvodnja ratarskih useva se sučeljava sa sve izraženijom varijabilnošću klimatskih faktora i vremenskih uslova, pre svega sa promenama unutar temperaturnog režima i neuravnoteženošću prostornog i vremenskog rasporeda padavina, koje postepeno postaju ograničavajući faktor njenog daljeg razvoja. Shodno prisustvu klimatskih rizika, proizvođačima ratarskih useva je dostupno nekoliko mera čijom primenom mogu umanjiti njihov uticaj, te adekvatno zaštititi svoju proizvodnju, odnosno očekivane prinose i prihode. U grupi agrotehničkih mera primat se daje navodnjavanju, dok se kao ekonomske mere najčešće pojavljuju osiguranje useva i trgovina finansijskim (vremenskim) derivatima u zemljama razvijene ekonomije. Sa aspekta donosioca odluka na gazdinstvu, prisustvo, izbor i implementacija raspoloživih mera se najčešće zasniva na njihovoj ekonomskoj efektivnosti i prihvatljivosti. Oslanjajući se na procenu uticaja klimatskih promena, prevashodno prisustvo fenomena suše i njima izazvanih šteta na ratarsku proizvodnju, analizirane su neke od mogućnosti unapređenja segmenta upravljanja rizikom nedostatka padavina u nacionalnoj poljoprivredi. One uključuju širu primenu agro-tehničke mere navodnjavanja i specifičnih proizvoda osiguravajućih kuća (osiguranja od suše), te mogućnosti ustanovljavanja određenih finansijskih instrumenata vanberzanskog i berzanskog tržišta (vremenskih derivata) na teritoriji Republike Srbije. Istraživanje je kroz analizu stanja pokazalo da poljoprivrednici ne koriste u dovoljnoj meri raspoložive alternative. Kako bi se analizirali uzroci nedovoljne primene alternativnih modela sprovedeno je anketno istraživanje na poljoprivrednim gazdinstvima. Uz osvrt na potencijalni uticaj Zajedničke poljoprivredne politike Evropske unije na nacionalnu agrarnu politiku (pomeranje težišta sa tržišnih intervencija na adekvatne mehanizme pristupa instrumentima za upravljanje proizvodnim rizicima - modelu subvencija), a indirektno i na pojedinačna gazdinstva, izvršena je ocena ekonomske efektivnosti zaštite ratarske proizvodnje kupovinom polise osiguranja od suše, odnosno ocena ekonomske efektivnosti implementacije i korišćenja sistema za navodnjavanje na uslovno malim i velikim gazdinstvima dominantno okrenutim ratarstvu." ]
[ "Crop production significantly contributes to the sustainability and competitiveness of the national agriculture. On the other hand, currently crop production is facing the more and more pronounced variability of climatic factors and weather conditions (primarily with the changes within the temperature regime, as well as disturbed spatial and temporal distribution of rainfalls) that progressively become a limiting factor for its further development. In accordance with the presence of climate risks, several measures are available to crop producers, whose implementation may decrease impact of mentioned risks and serve as adequate protection of their production and expected yields (incomes). Within the group of agro-technical measures primacy is given to the irrigation, while as economic measure mostly is used the crop insurance, as well as trade with financial instruments (weather derivatives) in the countries with developed economy. From the perspective of decision maker at agricultural holding, the presence, selection and implementation of available measures are usually based on their economic effectiveness and acceptability. Relying on the assessment of climate change impacts (before all the presence of the drought phenomenon) and by them caused damages in crop production, there were analyzed some opportunities at national level that can be used to improve the segment of risk management related to the lack of rainfalls, such as wider application of agro-technical measure of irrigation and specific products of insurance (insurance against drought), as well as the possibility of certain financial instruments of OTC and stock market establishment (weather derivatives) at the territory of the Republic of Serbia. Throughout the analysis, the research has showed that agricultural producers have not use in sufficient volume the available alternatives, while the conducted survey identified the main reasons of that. Together with reconsideration on the potential impact of the Common Agricultural Policy of the European Union to the national agricultural policy (focus shifting from the market intervention to the adequate access mechanisms to the instruments for production risks management - subsidy model), as well as indirect impact on individual holdings, it was assessed the economic efficiency of protection of crop production by the purchase of insurance policy against the drought, as like the evaluation of economic effectiveness of irrigation systems implementation and use at relatively small and large holdings primarily oriented to crop production. Conducted economic analysis (based on the contribution margin - variable costs) showed that depending to the present level of drought intensity and verified losses of expected yields, holdings turned to crop production that were previously purchased the insurance policy against drought may reach up to several times higher contribution margin in certain lines of crop production, ensuring itself a larger part of planned incomes during by the weather conditions unfavorable years. Also, all gained values for the indicators of dynamic assessment of economic efficiency of investment in selected irrigation systems show that their implementation lies on proper economic reasoning, what would contributed to the stabilization and increase" ]
sr (cyrillic script)
Универзитет у Новом Саду, Пољопривредни факултет
[ "info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/46006/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Новом Саду
[ "Климатске промене", "Klimatske promene", "ratarska proizvodnja", "osiguranje", "navodnjavanje", "vremenski derivati", "ратарска производња", "осигурање", "наводњавање", "временски деривати" ]
[ "Climate changes", "crop production", "insurance", "irrigation", "weather derivatives" ]
[ "Економски инструменти за управљање климатским ризицима у ратарској производњи Републике Србије" ]
[ "Ekonomski instrumenti za upravljanje klimatskim rizicima u ratarskoj proizvodnji Republike Srbije", "Economic instruments for climate risks management in crop production in Republic of Serbia" ]
doctoralThesis
[ "BY" ]
[ "https://nardus.mpn.gov.rs/bitstream/id/36289/IzvestajKomisije.pdf", "http://nardus.mpn.gov.rs/bitstream/id/36288/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/36289/IzvestajKomisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/36288/Disertacija.pdf", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija156809437300419.pdf?controlNumber=(BISIS)111131&fileName=156809437300419.pdf&id=13368&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_12063" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/11494
123456789-11494.pdf
yes
no
https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija153621611271440.pdf?controlNumber=(BISIS)71387&fileName=153621611271440.pdf&id=11886&source=NaRDuS&language=sr
no
Tumačenje retencije rastvorka u tečnoj hromatografiji primenom koeficijenata aktiviteta
[ "Petrović, Slobodan" ]
[ "Putanov, Paula", "Petrović, Slobodan", "Milić, Božidar" ]
Lomić, Slobodan
2019-11-08T11:05:05
[ "2019-11-08T11:05:05", "2020-07-03T13:55:14" ]
1988-06-21
[ "https://nardus.mpn.gov.rs/handle/123456789/11494", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija153621611271440.pdf?controlNumber=(BISIS)71387&fileName=153621611271440.pdf&id=11886&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/record.jsf?recordId=71387&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije15725213416812.pdf?controlNumber=(BISIS)71387&fileName=15725213416812.pdf&id=14095&source=NaRDuS&language=sr" ]
[ "" ]
[ "" ]
sr (latin script)
Универзитет у Новом Саду, Технолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Новом Саду
[ "tečna hromatografija" ]
[ "" ]
[ "Tumačenje retencije rastvorka u tečnoj hromatografiji primenom koeficijenata aktiviteta" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/40549/IzvestajKomisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/40548/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/40549/IzvestajKomisije.pdf", "http://nardus.mpn.gov.rs/bitstream/id/40548/Disertacija.pdf", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija153621611271440.pdf?controlNumber=(BISIS)71387&fileName=153621611271440.pdf&id=11886&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11494" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/11438
123456789-11438.pdf
yes
no
https://nardus.mpn.gov.rs/bitstream/id/40534/Disertacija.pdf
yes
Model bioprocesa proizvodnje enzima iz nusproizvoda prerade žita
Bioprocess model of enzyme production from wheat processing byproducts
[ "Vučurović, Damjan" ]
[ "Bajić, Bojana", "Vučurović, Damjan", "Vučurović, Vesna", "Puškaš, Vladimir", "Jevtić-Mučibabić, Rada" ]
Jovanović, Mirjana
2019-10-17T11:21:34
[ "2019-10-17T11:21:34", "2020-07-03T13:55:11" ]
2019-10-16
[ "https://nardus.mpn.gov.rs/handle/123456789/11438", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija156439382256128.pdf?controlNumber=(BISIS)111005&fileName=156439382256128.pdf&id=13274&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/record.jsf?recordId=111005&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije156439383704076.pdf?controlNumber=(BISIS)111005&fileName=156439383704076.pdf&id=13275&source=NaRDuS&language=sr" ]
[ "Svojim sastavom plevica predstavlja veoma atraktivnu sirovinu za proizvodnju enzima. Sa druge strane, dosadašnja upotreba ovog nusproizvoda prerade žita je bila samo kao hrana za stoku. Stoga se postavlja pitanje mogućnosti dobijanja veće ekonomske i ekološke dobiti primenom date sirovine za proizvodnju nekog visoko vrednog proizvoda, kao što su enzimi, uz valorizaciju ostalih izlaznih tokova procesa sa ciljem postizanja koncepta čistije proizvodnje, ondosno koncepta nulte emisije. Upravo simulacioni modeli postrojenja predstavljaju pomoćnu alatku za izvođenje ekonomske analize i drugih proračuna vezanih za bioproces, a bitnih za projektovanje. Za potrebe generisanja ovakvih modela, a kasnije i kontrolu samog bioprocesa, nužno je poznavati matematičke modele i njihove parametre vezane za dati proces. Utvrđivanje ovih matematičkih jednačina ima smisla samo kada se bioproces izvodi pod optimalnim uslovima. Da bi se proces optimizovao neophodno je detaljno proučavanje proizvodnje enzima kultivacijom nusproizvoda preradežita pri različitim procesnim parametrima" ]
[ "With its composition wheat chaff represents a very attractive raw material for the production of enzymes. On the other hand, the previous use of this by-product of wheat processing was just like cattle food. Therefore, the question arises of the possibility of obtaining greater economic and environmental profit by using the raw material for the production of high-value products, such as enzymes, with the valorization of other process outputs in order to achieve the cleaner production concept, i.e. the zero-emission concept. Simulation models of the plant are an auxiliary tool for conducting economic analysis and other bioprocessing budgets, which are important for designing. For the purposes of generating such models, and later controlling the bioprocess itself, it is necessary to know the mathematical models and their parameters related to the given process. Determining these mathematical equations makes sense only when the bioprocess is performed under optimal conditions. In order to optimize the process it is necessary to study the enzyme production in detail by cultivating by-products of grain processing in different process parameters." ]
sr (latin script)
Универзитет у Новом Саду, Технолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Новом Саду
[ "modelovanje", "simulacija", "enzim", "otpad", "pšenična plevica" ]
[ "Modeling", "simulation", "enzyme", "waste", "wheat chaff" ]
[ "Model bioprocesa proizvodnje enzima iz nusproizvoda prerade žita" ]
[ "Bioprocess model of enzyme production from wheat processing byproducts" ]
doctoralThesis
[ "BY" ]
[ "https://nardus.mpn.gov.rs/bitstream/id/40535/IzvestajKomisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/40534/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/40535/IzvestajKomisije.pdf", "http://nardus.mpn.gov.rs/bitstream/id/40534/Disertacija.pdf", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija156439382256128.pdf?controlNumber=(BISIS)111005&fileName=156439382256128.pdf&id=13274&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11438" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/1752
123456789-1752.pdf
yes
no
https://nardus.mpn.gov.rs/bitstream/id/38393/Disertacija.pdf
no
Sekundarni biomolekuli u vrstama Allium sect. Codonoprasum Rchb. – biološke aktivnosti, fitohemijski i hemotaksonomski aspekti
Secondary metabolites from selected species of genus Allium sect. Codonoprasum Rchb. – biological activities, phytochemical and chemotaxonomic aspects
[ "Mimica-Dukić, Neda" ]
[ "Popsavin, Mirjana", "Mimica-Dukić, Neda", "Anačkov, Goran", "Božin, Biljana", "Četojević-Simin, Dragana", "Mitić-Ćulafić, Dragana" ]
Simin, Nataša
2015-12-29T11:17:54
[ "2015-12-29T11:17:54", "2020-07-03T13:44:09" ]
2015-01-30
[ "https://nardus.mpn.gov.rs/handle/123456789/1752", "http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija142425375955049.pdf?controlNumber=(BISIS)91799&fileName=142425375955049.pdf&id=3290&source=NaRDuS&language=sr", "http://www.cris.uns.ac.rs/record.jsf?recordId=91799&source=NaRDuS&language=sr", "http://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije141606901670773.pdf?controlNumber=(BISIS)91799&fileName=141606901670773.pdf&id=2999&source=NaRDuS&language=sr" ]
[ "U ovoj doktorskoj disertaciji ispitan je hemijski sastav i biološke aktivnosti ekstrakata deset samoniklih taksona roda Allium sect. Codonoprasum: A. carinatum subsp. pulchellum, A. carinatum subsp. carinatum, A. fuscum var. gracile, A. fuscum var. fuscum, A. flavum subsp. flavum, A. melanantherum, A. paniculatum subsp. marginatum, A. pallens subsp. tenuiflorum, A. oleraceum i A. rhodopeum, sakupljenih na 27 lokaliteta u Srbiji. Cilj rada bio je da se dobiju podaci o sadržaju biološki aktivnih jedinjenja u ovim, do sada veoma malo ispitanim vrstama roda Allium, i utvrdi njihova potencijalna lekovita vrednost. Analiza hemijskog sastava obuhvatila je: analizu volatilnih komponenti svežih lukovica primenom headspace GC-MS tehnike, kvalitativnu analizu metanolnih ekstrakata primenom tečnohromatografskih metoda (LC-DAD-MS i LC-MS-MS), kvantitativnu analizu odabranih fenolnih jedinjenja LC-MS-MS tehnikom, određivanje sadržaja ukupnih monomernih antocijana i određivanje aktivnosti aliinaze. Ispitivanja bioloških aktivnosti ekstrakata obuhvatila su: određivanje antioksidantne, antiinflamatorne, antimikrobne, antimutagene i genotoksične aktivnosti, kao i ispitivanje uticaja na rast zdravih i tumorskih ćelija i sposobnosti indukcije ćelijske smrti. Sumiranjem dobijenih rezultata može se zaključiti da ispitivani predstavnici roda Allium sect. Codonoprasum predstavljaju bogate izvore biološki aktivnih jedinjenja sa širokim spektrom bioloških aktivnosti. Sa hemotaksonomskog aspekta značajno je da se dimetil-disulfid izdvaja kao najdominantnija i često jedina isparljiva komponenta, da ekstrakti većine vrsta sadrže veliku količinu flavonoida (prvenstveno derivata kvercetina), da se vrste A. pallens i A. oleraceum izdvajaju od ostalih po tome što ne sadrže rutin a sadrže hiperozid, da je vrsta A. rhodopeum siromašna fenolnim jedinjenjima i da su sve vrste, osim vrste A. flavum, bogate antocijanima. Aktivnost aliinaze je visoka u svim ispitivanim vrstama. Većina ispitivanih ekstrakata, izuzev ekstrakata vrsta A. carinatum i A. melanantherum, pokazala je izraženu antioksidantnu aktivnost, dok su ekstrakti vrsta A. flavum, A. rhodopeum, A. oleraceum i A. paniculatum snažni antiinflamatorni agensi. Ekstrakti ispitivanih predstavnika sect. Codonoprasum nisu pokazali antimikrobnu i antimutagenu aktivnost. Takođe, ovi ekstrakti nisu ispoljili genotoksični efekat na ćelije zdravog tkiva (izuzev slabog genotoksičnog efekta ekstrakta nadzemnih delova A. flavum), što ukazuje na bezbednost upotrebe vrsta sect. Codonoprasum kao hrane ili u obliku lekova. Ekstrakti celih biljaka A. paniculatum i A. rhodopeum, kao i ekstrakt nadzemnih delova A. melanantherum pokazali su snažnu antiproliferativnu aktivnost sa povoljnim ne-tumor/tumor koeficijentima i indukovali apoptozu u tumorskim ćelijama, iz čega se može zaključiti da imaju visok potencijal primene u antitumorskoj terapiji." ]
[ "In the present doctoral thesis the chemical composition and biological activities of 10 wild growing taxa of genus Allium sect. Codonoprasum (A. carinatum subsp. pulchellum, A. carinatum subsp. carinatum, A. fuscum var. gracile, A. fuscum var. fuscum, A. flavum subsp. flavum, A. melanantherum, A. oleraceum, A. paniculatum subsp. marginatum, A. pallens subsp. tenuiflorum and A. rhodopeum) were investigated. The samples were collected from 27 locations in Serbia. The aim of the study was to obtain data on the content of biologically active compounds in extracts of these unexplored species of the genus Allium and to determine their potential medicinal value. Phytochemical caracterisation included: headspace GC-MS analysis of fresh bulb volatiles, LC-DAD-MS and LC-MS-MS qualitative analysis of methanol extracts, LC-MS-MS quantitative analysis of 44 selected phenolic compounds in methanol extracts, determination of total monomeric anthocyanins content and alliinase activity. In order to assess the biological potential of methanol extracts, the antioxidant, anti-inflammatory, antimicrobial, antimutagenic, genotoxic and antiproliferative activities of the extracts were studied. Summing up all the results obtained, it can be concluded that species of genus Allium sect. Codonoprasum are rich sources of biologically active compounds with a broad spectrum of biological activities. Dimethyl disulfide is the most dominant and often the only volatile component of most species, which is significant from chemotaxonomic point of view. The methanol extracts of investigated species contain high levels of flavonoids (primarily quercetin derivatives). Specificity of A. pallens and A. oleraceum extracts is that they do not contain rutin, but contain hyperoside, while small quantity of phenolic compounds is characteristic for A. rhodopeum extract. All investigated species, except of A. flavum, are rich in anthocyanins. Alliinase activity was high in all examined species. Most of the extracts, except A. carinatum and A. melanantherum extracts, express considerable antioxidant activity, while extracts of A. flavum, A. rhodopeum, A. paniculatum and A. oleraceum are potent anti-inflammatory agents. The investigated Allium extracts did not show antimicrobial and antimutagenic activity. Also, the extracts did not express genotoxic effect on healthy tissue cells (except the weak genotoxic effects of aerial parts extract of A. flavum), indicating that the use of these species as a food or as a drug is safe. Whole plant extracts of A. paniculatum and A. rhodopeum, as well as aerial parts extract of A. melanantherum showed strong antiproliferative activity (with a favorable non-tumor/tumor ratios) and induced apoptosis in tumor cells, suggesting that these plants have a high potential for application in antitumor therapy." ]
sr (latin script)
Универзитет у Новом Саду, Природно-математички факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172058/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc/4.0/" ]
Универзитет у Новом Саду
[ "Allium", "Codonoprasum", "Allium carinatum", "Allium fuscum", "Allium flavum", "Allium melanantherum", "Allium paniculatum", "Allium pallens", "Allium rhodopeum", "Allium oleraceum", "biljni fenoli", "flavonoidi", "antioksidansi", "antimikrobna aktivnost", "antiinflamatorna aktivnost", "antimutagena aktivnost", "citotoksičnost", "genotoksičnost", "apoptoza" ]
[ "Allium", "Codonoprasum", "Allium carinatum", "Allium fuscum", "Allium flavum", "Allium melanantherum", "Allium paniculatum", "Allium pallens", "Allium rhodopeum", "Allium oleraceum", "plant phenolics", "flavonoids", "antioxidants", "antimicrobial activity", "anti-inflammatory activity", "antimutagenic activity", "antiproliferative activity", "genotoxicity", "apoptosis" ]
[ "Sekundarni biomolekuli u vrstama Allium sect. Codonoprasum Rchb. – biološke aktivnosti, fitohemijski i hemotaksonomski aspekti", "Secondary metabolites from selected species of genus Allium sect. Codonoprasum Rchb. – biological activities, phytochemical and chemotaxonomic aspects" ]
[ "" ]
doctoralThesis
[ "BY-NC" ]
Мимица-Дукић Неда; Aначков Горан; Божин Биљана; Попсавин Мирјана; Четојевић-Симин Драгана; Митић-Ћулафић Драгана; Мимица-Дукић Неда; Симин Наташа; Секундарни биомолекули у врстама Aллиум сецт. Цодонопрасум Рцхб. – биолошке активности, фитохемијски и хемотаксономски аспекти; Секундарни биомолекули у врстама Aллиум сецт. Цодонопрасум Рцхб. – биолошке активности, фитохемијски и хемотаксономски аспекти;
[ "http://nardus.mpn.gov.rs/bitstream/id/38393/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/38394/IzvestajKomisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/38394/IzvestajKomisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/38393/Disertacija.pdf", "http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija142425375955049.pdf?controlNumber=(BISIS)91799&fileName=142425375955049.pdf&id=3290&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_1752" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/17973
123456789-17973.pdf
yes
no
https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija159947530056171.pdf?controlNumber=(BISIS)114987&fileName=159947530056171.pdf&id=16586&source=NaRDuS&language=sr
no
Smanjenje ukupnog kapaciteta vodenih ekosistema i primena vodonik-peroksida u regulaciji ubrzane eutrofizacije i cvetanja cijanobakterija
Decrease of the total capacity of aquatic ecosystems and the application of hydrogen peroxide in the regulation of accelerated eutrophication and blooming of cyanobacteria
[ "Svirčev, Zorica" ]
[ "Simeunović, Jelica", "Svirčev, Zorica", "Miljanović, Branko", "Nikolić, Ljiljana" ]
Važić, Tamara
2021-02-25T14:53:28
[ "2021-02-25T14:53:28" ]
2020-11-16
[ "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija159947530056171.pdf?controlNumber=(BISIS)114987&fileName=159947530056171.pdf&id=16586&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/record.jsf?recordId=114987&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije15994753120904.pdf?controlNumber=(BISIS)114987&fileName=15994753120904.pdf&id=16587&source=NaRDuS&language=sr", "/DownloadFileServlet/IzvestajKomisije15994753120904.pdf?controlNumber=(BISIS)114987&fileName=15994753120904.pdf&id=16587", "https://nardus.mpn.gov.rs/handle/123456789/17973" ]
[ "Dugoročno rešenje problema povećanog ukupnog kapaciteta vodenih ekosistema, posledičnog ubraznja eutrofizacije i cvetanja potencijalno toksičnih cijanobakterija podrazumeva smanjenje priliva nutrijenata, kao i eliminaciju viška nutrijenata iz samog vodenog ekosistema, naročito azota i fosfora. Kao rešenje ovog problema se predlaže istovremena upotreba seta poznatih alternativnih metoda, označenih zajedničkim nazivom ekomanipulacija, koji uključuje: mehaničko uklanjanje makrofita i biomase cijanobakterija, upotreba plutajućih ostrva, masovno izlovljavanje ribe. Izvršena je procena mehaničkog uklanjanja trske (Phragmites australis) u kontekstu zaštite i prečišćavanja vodenih ekosistema i kao energetskog resursa na teritoriji Vojvodine. Procenjeno je da je oko 0,98% površine Vojvodine pokriveno trskom sa prosečnim prinosom od oko 2 kg/m 2 , odnosno oko 20 t/ha. Košenjem i uklanjanjem nadzemne biomase bi moglo da se ukloni do 333,20 kg/ha azota i 25,20 kg/ha fosfora. Pored povoljnih karakteristika trske kao energetske sirovine, troškovi obrade biomase trenutno prevazilaze potencijalnu zaradu, zbog čega ova makrofita ima veći značaj na lokalnom nivou. Ispitivana je efikasnost usvajanja nutrijenata direktno iz vodenog stuba putem uklanjanja nadzemne biomase trske iz PPES jedinica, kao i testiranje održivosti čitavog PPES sistema. Iako uklanjanje oko 800 g nadzemne biomase trske može smanjiti ukupni kapacit do izvesne mere, dodatne vrednosti upotrebe PPES sistema poput usvajanja toksičnih materija, korisne upotrebe plastičnog otpadnog materijala, proizvodnje biljne biomase ovu metodu čini značajnim delom sistema ekomanipulacija. Korišćenjem puferskog sistema ekoremedijacije baziranog na iznošenju biomaske trske se takođe obezbeđuje smanjenje ukupnog kapaciteta. Na taj način se može postići kontrola ubrzane eutrofizacije na četiri funkcionalna nivoa u dinamici ekosistema, koji podrazumevaju: sprečavanje priliva materija u vodeni ekosistem iz spoljašnje sredine izgradnjom mokrih polja, povećanje procesa razgradnje uvođenjem aeracije, prečišćavanje mulja ili efluenta i manipulacija trskom u priobalju. Procenjena je efikasnost mehaničkog uklanjanja toksične biomase cijanobakterije vrste Planktothrix rubescens iz akumulacije Vrutci. Rezultati ukazuju na efikasnost ove metode u smanjenju ukupnog kapaciteta, međutim samo tokom perioda cvetanja. Ispitivana je sposobnost 14 sojeva bakterija, izolovanih iz sakupljenje površinske skrame P. rubescens, da degradiraju cijanotoksin mikrocistin-LR. Degradacija toksina posle devet dana nije detektovana, što je moglo da bude posledica dužeg perioda adaptacije (lag faze) koji je bio potreban da bi se aktivirali odgovarajući geni i enzimski putevi odgovorni za biodegradaciju. Ispitivana je efikasnost metode masovnog izlovljavanja babuške (Carassius gibelio) iz sektora IV jezera Palić. Na osnovu količine iznete biomase tokom probnog izlova 2016. godine i poznatog hemijskog sastava, procenjeno je da je masovnim izlovom moguće ukloniti značajnu količinu nutrijenata na nivou čitavog jezera. Uprkos efikasnosti i pratećim povoljnim promenama u ekosistemu, zbog složenosti lanca ishrane i uopšte jezerskog ekosistema se preporučuje primena pridruženih metoda biomanipulacije ribljom fondom, kao i drugih metoda ekomanipulacije. Ispitivani su cijanocidni efekti vodonik-peroksida, kao dodatne metode u procesu revitalizacije jezera. Uzorci vode iz srpskih jezera Bečmenska bara (sektor Bečmen 3) i jezera Ludaš i finskog jezera Köyliönjärvi su bili tretirani različiti koncentrcijama vodonik-peroksida. Analize sadržaja hlorofila a i intracelularnih mikrocistina, indeksa vijabilnosti pokretnih grupa necijanobakterijskog fitoplanktona, zooplanktona i osetljivosti makroinvertebrata, ukazale su na mogućnost efikasne selektivne supresije cijanobakterija ravnomernim apliciranjem 2-5 mg/L vodonik-peroksida. Uočena je različita osetljivost kod ispitivanih grupa organizama na dejstvo agensa, zbog čega je u primeni ove metode neophodan dodatni oprez. Da bi se obezbedio uspešan proces revitalizacije jezera, važno je da se metode ekomanipulacije prilagode stanju i karakteristikama jezera, a da se vodonik-peroksid koristi samo u slučaju potrebe. Na takav načinmože nesmetano da se odvija dugotrajan proces revitalizacije. Zbog složenosti problema povećanja ukupnog kapaciteta, ubrzane eutrofizacije i procesa revitalizacije, neophodno je obezbediti multidisciplinarni pristup, pripremu akcionog plana i sprovođenje metoda pod strogo kontrolisanim uslovima." ]
[ "A long-term solution for the problem of increased total capacity in water ecosystems, and consequently accelerated eutrophication and potentially toxic cyanobacterial blooms, implies the restriction of nutrient inputs to the water bodies, as well as elimination of additional nutrients directly from water ecosystems,especially nitrogen and phosphorus. As a solution for this problem, it is proposed to simultaneously use a set of alternative methods, entitled as ecomanipulation, that include: mechanical removal of macrophytes and cyanobacterial biomass, floating islands, extensive fishing. Mechanical removal of Common reed (Phragmites australis) was estimated for the purpose of protection and purification of water ecosystems, as well as an energy source in the Vojvodina region. It was estimated that about 0,98% of the Vojvodina region is covered with common reed, with an average yield of 2 kg/m2, eg about 20 t/ha. By harvesting and removing of above-ground biomass, it would be possible to remove up to 333.20 kg/ha of nitrogen and 25.20 kg/ha of phosphorus. Besides favorable characteristics as an energy source, the cost of biomass processing currently exceeds potential revenues, hence this macrophyte is more significant at the local level. The efficiency of nutrient absorption directly from the water column by removal of the reed biomass incorporated in the PPES unites was examined, as well as testing the sustainability of the whole PPES system. Although removal of about 800 g of the above-ground reed biomass can decrease the total capacity up to a certain extent, additional values of PPES usage like the uptake of toxic compounds,useful use of plastic waste material, production of plant biomass makes this method important part of ecomanipulation system. The use of a buffer system of ecoremediation based on the removal of reed biomass also provides a reduction in total capacity. In this way, control of accelerated eutrophication can be achieved at four functional levels in ecosystem dynamics, which include: preventing the inflow of matter into the aquatic ecosystem from the external environment by building artificial wetlands, increasing the decomposition process by introducing aeration, sludge or effluent treatment, and reed manipulation in the coastal area. The efficiency of mechanical removal of toxic biomass of cyanobacteria Planktothrix rubescens from the Vrutci reservoir was estimated. The results indicate the effectiveness of this method in reducing the total capacity, but only during the blooming period. The ability of 14 bacterial strains, isolated from collected P. rubescens surface scum, to degrade cyanotoxin microcystin-LR was investigated. Degradation of toxin after nine days was not detected, which could be a consequence of a longer period of adaptation (lag phase) that was needed for activation of certain genes and enzyme pathways responsible for biodegradation. The efficiency of extensive fishing of Prussian carp (Carassius gibelio) from the sector IV of Lake Palić was investigated. Based on the amount of removed biomass during the trial catch in 2016, and the known chemical composition of fish, it was estimated that extensive fishing can remove a significant amount of nutrients at the level of the entire lake. Despite the efficiency and following favorable changes in the ecosystem, due to the complexity of the food chain and the lake ecosystem in general, the use of associated methods of biomanipulation with fish stock, as well as other methods of ecomanipulation, is recommended. The potential of cyanocidal effects of hydrogen peroxide, as an auxiliary method in the process of lake revitalization, was investigated. Water samples from Serbian lakes Bečmenska bara (sector Bečmen 3) and Lake Ludaš, as well as Finnish Lake Köyliönjärvi, were treated with different concentrations of hydrogen peroxide. Analysis of contents of chlorophyll a and intracellular microcystins, viability index of non-cyanobacterial moving phytoplankton, zooplankton, and sensitivity of macroinvertebrate indicated the possible efficiency of the selective suppression of cyanobacteria by uniform application of 2-5 mg/L of hydrogen peroxide in the water column. Examined groups of organisms expressed different sensitivity towards the applied concentrations of the agent, which is the reason for additional caution in the application of this method.In order to provide successful lake revitalization, it is important to adjust methods of ecomanipulation to the condition and characteristics of the lake, and also to use hydrogen peroxide only when it is necessary.In this way, the long recovery process can proceed smoothly. Due to the complexity of the problem of increased total capacity, accelerated eutrophication, and the process of revitalization, it is necessary to provide a multidisciplinary approach, preparation of an action plan and implementation of methods under strictly controlled conditions." ]
sr (latin script)
Универзитет у Новом Саду, Природно-математички факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/176020/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc/4.0/" ]
Универзитет у Новом Саду
[ "Ukupni kapacitet", "eutrofizacija", "cijanobakterije", "jezera", "ekomanipulacija", "vodonik-peroksid", "revitalizacija" ]
[ "total capacity", "eutrophication", "cyanobacteria", "lakes", "ecomanipulation", "hydrogen peroxide", "revitalization" ]
[ "Smanjenje ukupnog kapaciteta vodenih ekosistema i primena vodonik-peroksida u regulaciji ubrzane eutrofizacije i cvetanja cijanobakterija" ]
[ "Decrease of the total capacity of aquatic ecosystems and the application of hydrogen peroxide in the regulation of accelerated eutrophication and blooming of cyanobacteria" ]
doctoralThesis
[ "BY-NC" ]
Свирчев, Зорица; Николић, Љиљана; Симеуновић, Јелица; Свирчев, Зорица; Миљановић, Бранко; Важић, Тамара; Смањење укупног капацитета водених екосистема и примена водоник-пероксида у регулацији убрзане еутрофизације и цветања цијанобактерија; Смањење укупног капацитета водених екосистема и примена водоник-пероксида у регулацији убрзане еутрофизације и цветања цијанобактерија;
[ "https://nardus.mpn.gov.rs/bitstream/id/68733/IzvestajKomisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/68726/Disertacija.pdf", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija159947530056171.pdf?controlNumber=(BISIS)114987&fileName=159947530056171.pdf&id=16586&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_17973" ]
[ "" ]
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https://nardus.mpn.gov.rs/handle/123456789/6500
123456789-6500.pdf
yes
yes
https://fedorabg.bg.ac.rs/fedora/get/o:12905/bdef:Content/download
no
Комбинаторне Хопфове алгребре
Combinatorial hopf algebras
[ "Mijajlović, Žarko" ]
[ "Lipkovski, Aleksandar", "Petrović, Zoran", "Jojić, Duško" ]
Stojadinović, Tanja B.
2016-09-10T17:13:31
[ "2016-09-10T17:13:31", "2020-07-03T08:38:00" ]
2014-04-22
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=3847", "https://nardus.mpn.gov.rs/handle/123456789/6500", "https://fedorabg.bg.ac.rs/fedora/get/o:12905/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=46342671" ]
[ "Над многим класама комбинаторних објеката природно се могу увести множење и комножење који задају структуру Хопфове алгебре. Позна- те су Хопфове алгебре посета, пермутација, дрвета, графова и друге. Многе класичне комбинаторне инваријанте, као џто су Мебијусова функција посета, хроматски полином графа, Ден-Сомервилове релације, изводе се из одговарајуће Хопфове алгебре. Теорију комбинаторних Хопфових алгебри засновали су Агиар, Бергерон и Сотил у раду из 2003. године. Терминални објекти у категорији комбинаторних Хопфо- вих алгебри су алгебре квазисиметричних и симетричних функција. Ове функције се појављују као функције генератрисе у комбинаторици. Предмет изучавања ове дисертације је комбинаторна Хопфова алге- бра хиперграфова и њене подалгебре градивних скупова и клатера. Ове алгебре појављују се у различитим комбинаторним проблемима, као што су бојења хиперграфова, партиције симплицијалних комплекса и комби- наторика простих политопа. Изведене су структурне везе између ових алгебри, као и њихових непарних подалгебри. Применом теорије кара- ктера дат је један метод за добијање интересантних нумеричких иденти- тета. Уопштене Ден-Сомервилове релације за застава ф-векторе Ојлерових посета доказали су Бајер и Биљера. Ове релације дефинисане су у свакој комбинаторној Хопфовој алгебри и одређују њену непарну подал- гебру. У дисертацији се решавају уопштене Ден-Сомервилове једначине за комбинаторну Хопфову алгебру хиперграфова. По аналогији са Роти- ном Хопфовом алгебром посета, дефинише се Ојлерова подалгебра Хоп- фове алгебре хиперграфова. Добијена је комбинаторна карактеризација Ојлерових хиперграфова, која зависи од нерва припадајућег клатера. На тај начин добијена је једна класа решења Ден-Сомервилових релација за хиперграфове. Ови резултати примењени су на Хопфову алгебру сим- плицијалних комплекса." ]
[ "Multiplication and comultiplication, which dene the structure of a Hopf algebra, can naturally be introduced over many classes of combinatorial objects. Among such Hopf algebras are well-known examples of Hopf algebras of posets, permutations, trees, graphs. Many classical combinatorial invariants, such as M obius function of poset, the chromatic polynomial of graphs, the generalized Dehn-Sommerville relations and other, are derived from the corresponding Hopf algebra. Theory of combinatorial Hopf algebras is developed by Aguiar, Bergerone and Sottille in the paper from 2003. The terminal objects in the category of combinatorial Hopf algebras are algebras of quasisymmetric and symmetric functions. These functions appear as generating functions in combinatorics. The subject of study in this thesis is the combinatorial Hopf algebra of hypergraphs and its subalgebras of building sets and clutters. These algebras appear in dierent combinatorial problems, such as colorings of hypergraphs, partitions of simplicial complexes and combinatorics of simple polytopes. The structural connections among these algebras and among their odd subalgebras are derived. By applying the character theory, a method for obtaining interesting numerical identities is presented. The generalized Dehn-Sommerville relations for ag f-vectors of eulerian posets are proven by Bayer and Billera. These relations are dened in an arbitrary combinatorial Hopf algebra and they determine its odd subalgebra. In this thesis, the generalized Dehn-Sommerville relations for the combinatorial Hopf algebra of hypergraphs are solved. By analogy with Rota's Hopf algebra of posets, the eulerian subalgebra of the Hopf algebra of hypergraphs is dened. The combinatorial characterization of eulerian hypergraphs, which depends on the nerve of the underlying clutter, is obtained. In this way we obtain a class of solutions of the generalized Dehn-Sommerviller relations for hypergraphs. These results are applied on the Hopf algebra of simplicial complexes." ]
application/pdf
sr
Универзитет у Београду, Математички факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/174034/RS//" ]
[ "openAccess" ]
[ "" ]
Универзитет у Београду
[ "Хопфова алгебра", "хиперграф", "градивни скуп", "клатер", "симплицијални комплекс", "квазисиметрична функција", "симетрична функција", "Ден-Сомервилове релације" ]
[ "Hopf algebra", "hypergraph", "building set", "clutter", "simplicial complex", "quasisymmetric function", "symmetric function", "Dehn-Sommerville relations" ]
[ "Комбинаторне Хопфове алгребре", "Combinatorial hopf algebras" ]
[ "" ]
doctoralThesis
[ "ARR" ]
Мијајловић, Жарко; Петровић, Зоран; Јојић, Душко; Липковски, Aлександар; Стојадиновић, Тања Б.; Kombinatorne Hopfove algrebre;
[ "https://nardus.mpn.gov.rs/bitstream/id/6356/Disertacija4497.pdf", "http://nardus.mpn.gov.rs/bitstream/id/6356/Disertacija4497.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:12905/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_6500" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/6562
123456789-6562.pdf
no
yes
https://fedorabg.bg.ac.rs/fedora/get/o:13112/bdef:Content/download
yes
Konačni prsteni i usmereni grafovi
An interesting relationship between finite rings and graphs.
[ "Lipkovski, Aleksandar" ]
[ "Mijajlović, Žarko", "Petrović, Zoran" ]
Shafah, Osama
2016-09-18T07:46:47
[ "2016-09-18T07:46:47", "2020-07-03T08:38:01" ]
2013-07-03
[ "https://nardus.mpn.gov.rs/handle/123456789/6562", "http://eteze.bg.ac.rs/application/showtheses?thesesId=3906", "https://fedorabg.bg.ac.rs/fedora/get/o:13112/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=45306639" ]
[ "In this thesis we will give an interesting relation between finite rings and their graphs, such relations are obtained in following way" ]
[ "" ]
application/pdf
en
Универзитет у Београду, Математички факултет
[ "" ]
[ "openAccess" ]
[ "" ]
Универзитет у Београду
[ "finite rings", "graphs azero-divisors", "algebraic relations" ]
[ "konačni prstenovi", "algebarske relacije" ]
[ "Konačni prsteni i usmereni grafovi", "An interesting relationship between finite rings and graphs." ]
[ "" ]
doctoralThesis
[ "ARR" ]
Липковски, Aлександар; Петровић, Зоран; Мијајловић, Жарко; Схафах, Осама; Коначни прстени и усмерени графови; Коначни прстени и усмерени графови;
[ "https://nardus.mpn.gov.rs/bitstream/id/6360/Disertacija4619.pdf", "http://nardus.mpn.gov.rs/bitstream/id/6360/Disertacija4619.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:13112/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_6562" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/6497
123456789-6497.pdf
no
no
https://fedorabg.bg.ac.rs/fedora/get/o:12397/bdef:Content/download
no
Extreme values in sequences of independent random variables with mixed distributions
Ekstremne vrednosti u nizovima nezavisnih slučajnih veličina sa mešavinama raspodela
[ "Mladenović, Pavle" ]
[ "Janković, Slobodanka", "Petrović, Ljiljana" ]
Shneina, Ehfayed
2016-09-10T17:13:29
[ "2016-09-10T17:13:29", "2020-07-03T08:38:10" ]
2013-12-12
[ "https://nardus.mpn.gov.rs/handle/123456789/6497", "http://eteze.bg.ac.rs/application/showtheses?thesesId=3625", "https://fedorabg.bg.ac.rs/fedora/get/o:12397/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=45534223" ]
[ "" ]
[ "This thesis has been written under the supervision of my mentor Prof. Dr. Pavle Mladenović at the University of Belgrade, Faculty of Mathematics in the academic year 2012-2013. The title of this thesis is “Extreme values in sequences of independent random variables with mixed distributions”. For good survey of the field, see Resnick, S. I. [25] and Samorodnitsky, Taqqu [27]. The thesis is divided into two chapters. Chapter 1 is divided into 7 sections. In this chapter, we focus on classical results in extreme value theory. We discuss maxima and minima in the first section, univariate extreme value theory in the second section, max-stable distributions in the third section, peaks over threshold models in the fourth section, domain of attraction of the extremal type distributions in the fifth section, tails in the sixth section and tail equivalence in the seventh section. Chapter 2 is divided into 9 sections. In this chapter, we discuss mixed distributions in the first section, mixture of normal distributions in the second section, mixture of Cauchy distributions in the third section, stable distributions in the fourth section, properties of stable random variables in the fifth section, infinitely divisible distributions in the sixth section. Sections 7 and 8 contain the main results for this dissertation. Mixtures of stable distributions are described in the seventh section and mixtures of an infinite sequence of independent normally distributed variables in the eighth section. Conclusion and future research are in the ninth section." ]
application/pdf
en
Универзитет у Београду, Математички факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Београду
[ "extreme value theory", "mixed distributions", "normal distributions", "stable distributions" ]
[ "" ]
[ "Extreme values in sequences of independent random variables with mixed distributions", "Ekstremne vrednosti u nizovima nezavisnih slučajnih veličina sa mešavinama raspodela" ]
[ "" ]
doctoralThesis
[ "BY" ]
Младеновић, Павле; Јанковић, Слободанка; Петровић, Љиљана; Схнеина, Ехфаyед;
[ "https://nardus.mpn.gov.rs/bitstream/id/6389/Disertacija4277.pdf", "http://nardus.mpn.gov.rs/bitstream/id/6389/Disertacija4277.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:12397/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_6497" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/11747
123456789-11747.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:20755/bdef:Content/download
no
Унапређена метода за одређивање рефлексионих особина коловозних површина мерењима на терену
An improved method for the determination of the roadway surface reflection properties by on-site measurements
[ "Kostić, Miomir" ]
[ "Radaković, Zoran", "Gojanović, Jovana", "Dramlić, Dragan", "Cvetić, Jovan" ]
Штрбац Хаџибеговић, Наташа
2020-01-27T12:20:40
[ "2020-01-27T12:20:40", "2020-07-03T08:35:48" ]
2019-09-25
[ "https://nardus.mpn.gov.rs/handle/123456789/11747", "http://eteze.bg.ac.rs/application/showtheses?thesesId=7104", "https://fedorabg.bg.ac.rs/fedora/get/o:20755/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=51820047" ]
[ "За постизање добре видљивости и адекватног видног комфора потребно је постићи стандардима или међународним препорукама захтеване вредности нивоа сјајности и опште и подужне равномерности сјајности, као и учинити прихватљивим физиолошко бљештање. У циљу испуњења наведених фотометријских захтева при пројектовању осветљења посматране саобраћајнице, који зависе од њене светлотехничке класе, неопходно је познавати геометријске параметре саобраћајнице, светлосни флукс извора светлости, расподелу светлости светиљке, и рефлексионе особине коловозне површине. Пошто су геометрија саобраћајнице, светлосни флукс изабраног извора светлости и расподела светлосног интензитета светиљке познати (реномирани произвођачи извора светлости и светиљки публикују прецизне податке о својим производима), тачност прорачуна сјајности доминантно зависи од тачности одређивања рефлексионих особина коловоза..." ]
[ "In order to achieve good visibility and adequate visual comfort, it is necessary to achieve the luminance level and overall and longitudinal luminance uniformities, as well as reduce physiological glare, in accordance with the relevant international standards or recommendations. In order to fulfill the stated photometric requirements when designing the illumination of the observed road, which depend on its lighting class, it is necessary to possess all data regarding the geometric parameters of the roadway, the luminous flux of the light source, the light distribution of the luminaire and the reflection properties of the roadway surface. Since the geometry of the roadway, the luminous flux of the selected light source and the luminous intensity distribution of the luminaire are known (renowned producers of light sources and luminaires publish precise data about their products), the accuracy of luminance calculations predominantly depends on the accuracy of the determination of the carriageway reflection properties..." ]
application/pdf
sr
Универзитет у Београду, Електротехнички факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Београду
[ "рефлексионе карактеристике коловозне површине", "мобилни рефлектометар", "нова метода", "побољшана тачност израчунавања сјајности", "валидација методе" ]
[ "roadway surface reflection properties", "mobile reflectometer", "new method", "improved accuracy of luminance calculations", "method validation" ]
[ "Унапређена метода за одређивање рефлексионих особина коловозних површина мерењима на терену" ]
[ "An improved method for the determination of the roadway surface reflection properties by on-site measurements" ]
doctoralThesis
[ "BY" ]
[ "https://nardus.mpn.gov.rs/bitstream/id/5718/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/5719/IzvestajKomisije21608.pdf", "http://nardus.mpn.gov.rs/bitstream/id/5718/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/5719/IzvestajKomisije21608.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11747" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/11245
123456789-11245.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:19889/bdef:Content/download
no
Проблеми хаб максималног покривања - нови математички модели и методе решавања
Hub maximal covering problems - novel mathematical models and solution methods
[ "Stanimirović, Zorica" ]
[ "Dražić, Milan", "Davidović, Tatjana" ]
Станчић, Оливера С.
2019-07-18T13:23:22
[ "2019-07-18T13:23:22", "2020-07-03T08:37:57" ]
2018-12-07
[ "https://nardus.mpn.gov.rs/handle/123456789/11245", "http://eteze.bg.ac.rs/application/showtheses?thesesId=6806", "https://fedorabg.bg.ac.rs/fedora/get/o:19889/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=51492367" ]
[ "Hab lokacijski problemi, zbog brojnih primena u raznim oblastima realnog života, predstavlja važnu klasu problema optimizacije..." ]
[ "Hub Location Problems (HLP) represent an important class of optimization problems due to their numerous applications in many areas of real life. They often arise from practical situations that require routing of the flow from origin node (supplier) to the destination node (customer) under given conditions, such that the value of considered objective function is optimal. Hubs are special objects (nodes in the network) that represent centres for consolidation and flow collection between two selected locations - suppliers and customers. As transportation costs (per unit of flow) along the links that connect hub nodes are lower compared to other links in the network, directing the flow to hubs may lead to significant reductions of transportation cost in the network..." ]
application/pdf
sr
Универзитет у Београду, Математички факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/174015/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Matematičko modeliranje", "problemi hab maksimalnog pokrivanja", "genetski algoritmi", "metoda promenljivih okolina" ]
[ "mathematical modeling", "hub maximal covering problems", "binary and partial coverage", "metaheuristics", "variable neighborhood search", "greedy randomized adaptive search procedure", "genetic algorithm" ]
[ "Проблеми хаб максималног покривања - нови математички модели и методе решавања" ]
[ "Hub maximal covering problems - novel mathematical models and solution methods" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/6344/Olivera_Stancic_izvestaj_komisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/6344/Olivera_Stancic_izvestaj_komisije.pdf", "https://nardus.mpn.gov.rs/bitstream/id/6343/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/6343/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11245" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
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[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/6236
123456789-6236.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:12342/bdef:Content/download
no
Форензичка анализа и моделирање карактеристика кратера насталог при површинској експлозији бризантног експлозива
Forensic analysis and modelling of characetristics of crater emerged from thesurface explosion of brisant explosive
[ "Jaramaz, Slobodan" ]
[ "Micković, Dejan", "Kričak, Lazar", "Elek, Predrag", "Vasiljević, Darko" ]
Bjelovuk, Ivana D.
2016-08-13T10:01:09
[ "2016-08-13T10:01:09", "2020-07-03T08:42:32" ]
2014-12-09
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=3590", "https://nardus.mpn.gov.rs/handle/123456789/6236", "https://fedorabg.bg.ac.rs/fedora/get/o:12342/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=514554019" ]
[ "Последњих деценија, велики број недозвољeних активности спроводи се изазивањем експлозија. Наиме, ефекте експлозије користе терористи за изазивање страха и панике међу становништвом уз људске жртве, материјалну штету, уништавање и онеспособљавање стратегијски важних објеката и сл. као и извршиоци других кривичних дела (изазивање опште опасности, убистава, тешких крађа и др.) када се експлозија користи за савлађивање препрека при проваљивању у куће, станове и друге просторије, за отварање сефова, за сврхе застрашивања појединаца са или без наношења телесних повреда и сл. Ефекти експлозије су вишеструки – као последица бризантног, фугасног, топлотног, парчадног и сеизмичког дејства и углавном се манифестују различитим оштећењима на подлози и околним објектима. Бризантно дејство експлозије изражено је дејством у непосредном окружењу пуњења, и то у виду кратера или отвора у случају површинских експлозија. Од полиције и судских вештака суд тражи одређивање узрока експлозије, те изучавање ефеката експлозије добија на значају. Очекивани допринос овог рада је у области форензичко инжењерство. У прилог оправданости истраживања дата је анализа случајева подметања и активирања експлозивних средстава са последицама у периоду од седам година (2000.-2006.) на територији Републике Србије. Активирање експлозивних средстава било да је у питању намера или нехат изазива штетне последице по околину, те је значајан сваки допринос у прецизнијем утврђивању узрока експлозије на основу трагова, у овом случају кратера. Са форензичког аспекта оштећење у виду кратера је значајно због могућности процене масе коришћеног експлозива за конкретну експлозију, проналажење делова експлозивног средства, узорковање експлозива из кратера ради одређивања врсте експлозива, процене III начина иницирања и др. Димензије и облик кратера су у веома тесној вези са масом и врстом коришћеног експлозива. У досадашњој пракси одређивање масе употребљеног експлозива вршено је коришћењем емпиријских једначина, што није давало апсолутно поуздане резултате. У раду је дат преглед постојећих четрнаест једначина за прелиминарну процену масе експлозива на основу карактеристика кратера и њихова провера кроз резултате конкретних експерименталних експлозија као и вредности одступања од експеримената..." ]
[ "In recent decades a large number of illegal activities are performed with the use of explosion. Namely, explosion effects are used by terrorists in order to cause fear and panic among the population along with human victims, material damage, destruction and disabling of strategically important facilities, etc., as well as by the perpetrators of other criminal offences (causing of general danger, murders, aggravated thefts, etc.) when the explosion is used to overcome obstacles when breaking into houses, apartments and other premises, opening the safe deposit boxes and for intimidation of individuals with or without causing bodily injuries, etc. Explosion effects are multiple – as the consequences of brisant, gaseous, heat, fragmentation and seismic effects, and are mostly manifested in various damages on the surface and surrounding propertys. The brisant effect of the explosion is visible in the immediate surroundings of the charge, mostly in the shape of a crater or a hole in cases of surface explosions. The court requests from the police and the experts to determine the exact cause of an explosion, so studying of explosion effects becomes more important. The expected contribution of this paper is in the area of forensic engineering. The analysis of cases of planting and activation of explosive devices, along with their consequences, on the territory of the Republic of Serbia for the period of seven years (2000 – 2006), was provided as a support to the justification for this research. Activation of explosive devices, whether intentionally or out of negligence, causes damage to property so each contribution is important for the more precise determination of the cause of an explosion based on traces, in this case the crater. From the forensic aspect the damage in the form of a crater is important because of the possibility to estimate the mass of the explosive used for the specific explosion, to find pieces of explosive device, to take samples of explosive from the crater in order to determine the type of explosive, to estimate methods of initiation, etc. Dimensions and shape of the crater are closely connected with the mass and type of the explosive used. Calculation of the mass of the explosive used had commonly been made using empirical equations, which did not giveabsolutely reliable results. This paper contains the review of the existing fourteen equations for the preliminary estimation of the mass of explosive based on the crater characteristics and revision of their results through specific experimental explosions, with the values of deviations from the experiments..." ]
application/pdf
sr
Универзитет у Београду, Машински факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "бризантни експлозив", "површинска експлозија", "кратер", "форензичка обрада места експлозије", "експерт", "форензичка анализа", "моделирање", "маса експлозива" ]
[ "brisant explosive", "surface explosion", "crater", "bomb scene investigation", "еxpert", "forensic analysis", "modeling", "explosive charge mass" ]
[ "Форензичка анализа и моделирање карактеристика кратера насталог при површинској експлозији бризантног експлозива", "Forensic analysis and modelling of characetristics of crater emerged from thesurface explosion of brisant explosive" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Јарамаз, Слободан; Мицковић, Дејан; Кричак, Лазар; Елек, Предраг; Васиљевић, Дарко; Бјеловук, Ивана Д.; Forenzička analiza i modeliranje karakteristika kratera nastalog pri površinskoj eksploziji brizantnog eksploziva;
[ "http://nardus.mpn.gov.rs/bitstream/id/7395/Bjelovuk_Ivana_Referat_MF.pdf", "https://nardus.mpn.gov.rs/bitstream/id/7395/Bjelovuk_Ivana_Referat_MF.pdf", "https://nardus.mpn.gov.rs/bitstream/id/7394/Disertacija4224.pdf", "http://nardus.mpn.gov.rs/bitstream/id/7394/Disertacija4224.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_6236" ]
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