Bringing new beetles to light
2012 REU Project:
The beetle family Staphylinidae – the rove beetles – is the largest beetle family in the world, with over 57,000 species and nearly 3,600 genera already described. Several hundred new species and at least two dozen new genera are described every year, the largest proportion of them from Asia. The faunas of Australia, New Zealand, and southern South America also include many new genera awaiting naming and description but have received less attention. This relative lack of attention means that even identifying specimens belonging to described genera is difficult, because there are no comprehensive identification guides. International collaborative work is just beginning on two guides to beetle genera, one focused on Australia and one on southern South America, similar to the two-volume work American Beetles published in 2000 and 2002. Margaret Thayer is a coordinator of the rove beetle chapters of both guides, and hopes to describe the 20 currently known new genera from those areas so they can be included in these guides. The guides will promote more detailed work on those faunas by any researchers, including describing additional species, synthesizing information on all the species, and analyzing their distributions and evolution. This REU project will involve primarily describing one of the new genera (and, if necessary, new species) belonging to the subfamily Omaliinae, based on existing museum specimens from the collections of The Field Museum and others. The intern might also help with some aspects of work on other genera.
Research methods and techniques: Research work will include training in beetle skeletal morphology; dissecting, microscopy, and imaging techniques (probably including some SEM – scanning electron microscopy); databasing and georeferencing specimen collecting records; and using the georeferenced records to map the known distribution of one or more species. The intern will work with the sponsoring curator on writing, for publication, a modern description of the genus with illustrations (drawings, digital macro- and microphotos, SEM) and comparisons to other genera of Omaliinae. This project will provide experience with museum collections, entomological study techniques, and scientific literature on rove beetles. It may also involve developing and/or testing identification keys, potentially either traditional dichotomous or interactive ones. Although not directly involving the genus being studied, some local fieldwork would be possible to enable the intern to see other rove beetles in the field.
Curator/Advisor: Dr. Margaret Thayer (Zoology - Insects)
REU Intern: ANTHONY DECZYNSKI
Entomology/Wildlife Conservation double major
University of Delaware
Symposium Presentation Title: Wingless in Tasmania: A New Genus of Flightless Rove Beetle from Tasmania (Coleoptera: Staphylinidae: Omaliinae)
Symposium Presentation Abstract: The family Staphylinidae – the rove beetles – is the largest family of beetles in the world and also one of the least understood. There are currently over 57,000 described species in over 3,600 genera and more are still being discovered at a rapid rate. In this project we describe a new flightless staphylinid genus from Tasmania belonging to the tribe Omaliini of the subfamily Omaliinae, extending knowledge of the highly endemic Australian fauna. We studied the beetles whole as dry specimens and in alcohol as well as cleared and dissected in permanent or temporary microscope slides. Scanning electron microscopy (SEM) allowed us to examine and image selected characters not clearly visible with optical microscopy. Using these sources of data we prepared descriptions and images of the beetles including species-specific genitalic structures and compiled all known distributional and ecological data. We added the genus into an ongoing phylogenetic analysis of World Omaliini by the second author to infer its phylogenetic placement. While we initially believed that this genus consisted of a single undescribed species from Tasmania we discovered that there are actually two species inhabiting different areas of that island. Several other genera of Omaliini have austral disjunct distributions that probably reflect an ancient origin on Gondwana. Our new genus needs to be compared carefully with several undescribed species of wingless Omaliinae known from southern New Zealand to assess whether they are all phylogenetically close – representing another disjunct genus – or convergently wingless.


Meiser repeats the "reported history" of the Apollo:
Hicham and Ali Aboutaam readily admitted to gaps in the Apollo's ownership record. From what they were able to determine, the statue was owned by a German family in the early 1900s. World War II forced them to flee, leaving their belongings behind.It could be true. But where is the certified documentation?
In the 1990s, a surviving member returned to the family estate after the fall of East Germany. In the backyard lay a pile of debris. He could only make out the bronzed head of a young man, a sculpted hand, the outline of a lizard.
The man vaguely recalled seeing the statue in the garden as a child, but he knew nothing of its history. Believing the cost of repair would be greater than its value, he sold the statue to a Dutch dealer in 1994, who in turn sold it to another collector, who then sold it to the Aboutaams in 2001 with the understanding that he'd remain anonymous.
And are all the investigations about the Apollo compelling? Meiser reports:
The International Art Loss Register in New York, which tracks stolen art, found no claims on the piece.But, as I have pointed out before, absence from the Art Loss Register does not signify anything when it comes to recently surfaced antiquities.
One thing is clear. There appears to be no evidence that the statue had spent time underwater and it thus looks like the Greek Government's claim that it came from a shipwreck is without foundation.
Meiser then reviews some of the cases of antiquities handled by the Aboutaams, though she does not note an Etruscan architectural terracotta that has been returned from Princeton, or the Italian claim that some of Shelby White's antiquities came from "the Aboutaam family, the owners of the Phoenix Ancient Art gallery". Meiser quotes Neil Brodie who said that he "would be acutely "suspicious" of anything that passed through the brothers' hands". In contrast:
Bennett dismissed the allegations. He'd been dealing with the brothers for years. In his experience, they'd been nothing but forthcoming and ethical.If that is the case, what else has the Cleveland Museum of Art purchased from the brothers? Will the Cleveland Museum of Art make that list public? And, if transparency is important, there is every reason to place this information in the public domain.
Meiser also touches on the Italian Government's request for the return of other items.
During the trial of dealer Robert Hecht, the Italians cited eight pieces Hecht had sold to Cleveland.A much longer list of requested returns includes some material that has been around for quite a long-time (see, for example, Suzan Mazur, "Italy Will Contest Medea Vase At Cleveland Museum", Scoop.co.nz, October 9, 2006). Among the antiquities is the head of the emperor Balbinus from a marble sarcophagus (1925.945; gift of J.H. Wade) and a Roman silver cup from Vicarello acquired in 1966 (1966.371) but first known in 1866. But many of the other pieces have surfaced more recently and certainly after 1970.
Cleveland has apparently refused to comment on the Italian list, and seems to be taking a firm stand.
But talking to Bennett, one gets the sense that the museum won't be quick to wave a white flag. "Our policy is really straightforward," he says. "Anyone at anytime" can protest an item's status. And "If someone has information that proves [the piece was illegally purchased], the museum has an obligation to look at that evidence . . . The Cleveland Museum of Art wants to know as much as possible about the items in our exhibits."But Bennett misses the point. Can the Cleveland Museum of Art be certain that the pieces in question had not been looted? What was the Museum's due diligence process? Are the pieces documented prior to 1970? Who sold them?
At the same time, Bennett claims that all pieces are vigorously researched. Just because a dealer is charged doesn't mean all his deals were tainted. Hecht's case is ongoing.
The Museum needs to make this information available.


Ratio and Proportion
Date: 7/4/96 at 19:21:20 From: Anonymous Subject: Ratio and Proportion Six men can complete a piece of work in one day while 5 boys would take 2 days to complete the same piece of job. 44 men can build a tower in 5 days; how long will 40 men and 80 boys take to build the tower?
Date: 7/5/96 at 8:37:52 From: Doctor Anthony Subject: Re: Ratio and Proportion From the first statement, 3 men would take 2 days to do the job. It follows that 5 boys are equivalent to 3 men. Since we have 80 boys building the tower, these boys are equivalent to (3/5)*80 = 48 men. So the total workforce on the tower is equivalent to 40+48 = 88 men If 44 men take 5 days, then 88 men would take 5/2 = 2 +1/2 days. -Doctor Anthony, The Math Forum Check out our web site! http://mathforum.org/dr.math/
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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/923825
- Postmodern ethics
- The University of Newcastle. Faculty of Education & Arts, School of Humanities and Social Science
- In Chapter 9 we saw how Jürgen Habermas's ethical theory epitomizes social work's modern ethical tradition, not least his distinction between values, ethics and morals. For Habermas, since all societies and cultures have values, they assume the character of objective facts that are distinguishable from ethics, the socially agreed-upon normative requirements of a particular group or society about what can rightfully be expected from people in that society or group. And ethics are distinguishable from morals, our beliefs about right and wrong. For Habermas morality is personal and Bauman, the major proponent of a postmodern ethics, agrees, but for different reasons.
- Ethics and Value Perspectives in Social Work p. 120-131
- Palgrave Macmillan
- Resource Type
- book chapter


Since 1993, RAN’s Protect-an-Acre program (PAA) has distributed more than one million dollars in grants to more than 150 frontline communities, Indigenous-led organizations, and allies, helping their efforts to secure protection for millions of acres of traditional territory in forests around the world.
Rainforest Action Network believes that Indigenous peoples are the best stewards of the world’s rainforests and that frontline communities organizing against the extraction and burning of dirty fossil fuels deserve the strongest support we can offer. RAN established the Protect-an-Acre program to protect the world’s forests and the rights of their inhabitants by providing financial aid to traditionally under-funded organizations and communities in forest regions.
Indigenous and frontline communities suffer disproportionate impacts to their health, livelihood and culture from extractive industry mega-projects and the effects of global climate change. That’s why Protect-an-Acre provides small grants to community-based organizations, Indigenous federations and small NGOs that are fighting to protect millions of acres of forest and keep millions of tons of CO2 in the ground.
Our grants support organizations and communities that are working to regain control of and sustainably manage their traditional territories through land title initiatives, community education, development of sustainable economic alternatives, and grassroots resistance to destructive industrial activities.
PAA is an alternative to “buy-an-acre” programs that seek to provide rainforest protection by buying tracts of land, but which often fail to address the needs or rights of local Indigenous peoples. Uninhabited forest areas often go unprotected, even if purchased through a buy-an-acre program. It is not uncommon for loggers, oil and gas companies, cattle ranchers, and miners to illegally extract resources from so-called “protected” areas.
Traditional forest communities are often the best stewards of the land because their way of life depends upon the health of their environment. A number of recent studies add to the growing body of evidence that Indigenous peoples are better protectors of their forests than governments or industry.
Based on the success of Protect-an-Acre, RAN launched The Climate Action Fund (CAF) in 2009 as a way to direct further resources and support to frontline communities and Indigenous peoples challenging the fossil fuel industry.
Additionally, RAN has been a Global Advisor to Global Greengrants Fund (GGF) since 1995, identifying recipients for small grants to mobilize resources for global environmental sustainability and social justice using the same priority and criteria as we use for PAA and CAF.
Through these three programs each year we support grassroots projects that result in at least:


More mushrooms, less pollution! Yes, you heard right: growing more mushrooms may be the best thing we can do to save the environment and mushroom expert Paul Stamets explains how in "Mycelium Running," a ground-breaking manual for saving the world through mushroom cultivation. The science goes like this: fine filaments of cells called mycelium, the fruit of which are mushrooms, already cover large areas of land around the world. As the mycelium grows, it breaks down plant and animal debris, recycling carbon, nitrogen, and other essential elements in the creation of rich new soil. What Stamets has discovered is that the enzymes and acids that mycelium produces to decompose this debris are superb at breaking apart hydrocarbons-the base structure common to many pollutants. Available here from your favorite online book retailer.
Below is an alphabetical list to other individuals, businesses, and organizations we support and wish to share.


by Alexandra Friedman:
“It is a complete failure,” sighed Jenn Baka from her hotel room in Tamil Nadu, India.
After months of studying a unique plant on a Fulbright Scholarship, Baka has deemed it—the jatropha curcas—a flop. Just a few years ago, it was hailed as the crown jewel of Indian sustainable energy. The renewable energy industry began to explore the biofuel potential of jatropha, a plant that produces toxic, non-edible nuts. With a readily extractable 45 percent oil content and the ability to run in any diesel machine after processing, jatropha caught the attention of governments, private companies and NGOs alike.
The Indian government championed jatropha from the start, largely due to the energy needs of its burgeoning population and its dependency on foreign fuel as the fourth largest consumer of oil in the world. With over one billion people and nearly all of its fertile land allocated to food crops, India’s land shortages render most biofuel cultivation impossible.
Still, the Indian Ministry of New and Renewable Energy pledged to achieve 20 percent biodiesel consumption by 2017 and to provide the entire Indian population with a source of renewable energy by 2015. For a while, jatropha seemed like the answer, launching to the top of the national Indian energy agenda due to its purported ability to grow anywhere.
In 2003 the Indian government began to set aside officially designated “wasteland” as jatropha test sites, where a combination of public and private investment enabled the planting of jatropha plantations. The Mahatma Gandhi National Rural Employment Guarantee Act of 2005, which guarantees rural Indian households 100 days of employment on manual labor projects, provided the necessary workforce to plant jatropha. “It was promoted as a crop that can survive in marginal environments under rain-fed conditions, meaning no fertilizer or extra water required, so farmers took up the crop. Surprise, surprise—it doesn’t grow well in marginal conditions,” explained Baka.
At first glance an almost messianic plant, jatropha promised to bolster employment levels and turn wastelands into producers of clean, renewable energy. Researchers had estimated that one acre would yield between 200 and 400 gallons of oil, significantly more than current biofuels like soy and canola oil. But after years of trying to harvest the nut’s potential, researchers and farmers have begun to accept failure. “Jatropha is a pandemic like H1N1. It is not going to solve the energy crisis of the world, but rather take away land where large populations are growing,” said Dr. K.K. Tripathi of the Indian Department of Biotechnology, who has conducted multiple government and private studies revealing poor yields of jatropha.
Dr. Robert Bailis of the Yale School of Forestry and Environmental Studies, who is currently researching the lifecycle of jatropha as a biofuel, agreed: “Unfortunately, the plant was really over-hyped if you go back four, five years. It was pitched as this miracle crop that can grow in really poor conditions and give great yields with very little input and very little attention from the farmer,” he said, “and none of that is true.”
This trend is especially apparent in the private sector, where companies are steadily decreasing investment in jatropha projects. In 2009 British Petroleum sold its rights in an estimated $12.1 million jatropha project joint venture with D1 Oils for a mere $818,900, making a timely departure before D1 Oils fell into financial woes.
Megha Rathee, chief operating officer at green consultancy firm Earth 100, commented on dwindling governmental investment: “The expected yield of jatropha never came into being, so the government lost interest.” The haphazard implementation of projects like these causes skepticism among researchers like Bailis, who questions the motives of corporations and the Indian government behind the push for jatropha. “People don’t act ethically when it comes to business,” he insisted.
Unfortunately, farmers have suffered much more than private investors. A lack of buyers and refineries means that many of these farmers cannot sell their product, even with the government’s push for jatropha. On top of that, many farmers have reported poor yields and insist that in the three-year-plus period it takes to grow, process, and sell jatropha, they could turn a higher profit by planting crops like sorghum or sugarcane.
Over a third of the 700 farmers Baka interviewed were promised loans from agricultural banks to replace their normal food crops with jatropha, many more receiving encouragement from the local government. Few have received compensation for their efforts.
Jatropha’s final redeeming quality—that it grows in fallow and otherwise unused land—also falls short. Proponents of the plant argue that regardless of yield, jatropha does not compete for valuable food crop space, especially when planted in “wasteland” areas. But Baka found discrepancies in the government terminology of “wasteland.” Baka noted that one village leader she met while doing survey work in Tamil Nadu told her that “the local state government body had forced him to plant jatropha in his village even though he said he didn’t have land. The government was trying to promote it so heavily and do these propagation schemes that they even forced him [to find land] to plant it.”
Because of this external pressure, villages that grow jatropha are often forced to cultivate it in common land areas, normally used as public space for gathering fuel wood or grazing animals. The Indian government definition of wastelands is “lands that can be put to more productive use with effort.” In many instances, “there is this whole other energy economy situated there that’s not mentioned in any of the government assessments of wastelands,” said Baka. These wastelands are often home to trees used for fuel wood, charcoal production, electricity production and tire retreading.
In some locales, jatropha has achieved success: A handful of private companies promoting the plant have implemented an effective system of jatropha production, refinement and exportation. Gold Star Biofuels, a private jatropha oil manufacturer, is one such company. Through its unique humanitarian focus on its farmers, Gold Star, “helps the economy of the country by providing jobs to unemployed farmers, keeps the families together on the farms, pays all of our farmers U.N. wages on levels projected for 2015 and pays national insurance,” explained Jack Holden, the company’s executive director.
Earth 100, part of Goldman Sachs Group’s efforts to reduce its carbon foot-print in India, has similarly achieved success as a buyer in the jatropha oil manufacturing industry. They provide companies with ‘green fleets’ of cars that are powered solely by nonedible biofuels like jatropha. Most of Earth 100’s jatropha comes from wild sources, picked and collected by villagers in an alternative, organic manner of cultivation.
Aside from the social benefits, jatropha seedcakes produced as a byproduct of oil extraction can help replenish the soil. “The technology needed for avoiding chemical fertilizer is very important and significant in reducing the carbon footprint as well as energy use and improving the scenario towards sustainability [of jatropha],” said Dr. Alok Adholeya of the Energy and Resources Institute.
Despite these small-scale successes, the overriding failure of jatropha has left many projects abandoned. The true sustainability of the plant is yet to be determined: Factors influencing the yield, the carbon balance of jatropha, and the amount of energy used to manufacture the oil and the seedcake must still be researched.
The enigma of jatropha remains unsolved. As Rathee explained, “Jatropha is not the ideal solution, but it’s the only one that we have right now.”
Alexandra Friedman ’14 is in Pierson College. Contact her at email@example.com.


With summer just around the corner, the days are getting longer and the nights are getting shorter. This means more hours a day that the sun is in contact with your skin. With this prolonged UV exposure, it is important to keep your skin protected. Keep reading for some helpful tips on using sunscreen to effectively guard your skin during the summer months.
Choosing Your Sunscreen
Do you ever wonder how effective your sunscreen really is? Are certain types better than others? Does SPF actually mean anything? Keep reading for some tips on choosing sunscreen.
What kind is the best?
There are two main types of sunscreen: physical blockers and chemical blockers. Each one has its pros and cons. Physical blockers are made from titanium dioxide and zinc oxide, which are materials that sit on the surface of the skin and are not quickly absorbed. Because of this, physical blockers reflect UV rays. This type of sunscreen lasts longer than chemical blockers, but because it is not absorbed can be easily washed or sweated off.
Chemical blockers, on the other hand, are made up of benzophenones. These chemicals help to absorb UV radiation. Because this type of sunscreen does soak into the skin, it is much more water resistant than physical blockers. However, it wears off much faster, and therefore needs to be reapplied more frequently.
Both chemical and physical blockers are effective in protecting your skin from UV rays, but which one you use should depend on the situation. If you are going to be in water or sweating a lot, a chemical blocker would probably be the best choice. Any other sun exposure would most likely be fine with a physical blocker.
What does SPF even mean?
SPF stands for sun protection factor. A common misconception about SPF is that the higher the number, the less you have to reapply. In actuality, the SPF number is only a guide to how long you can go without reapplying. A good rule of thumb is to multiply the number of minutes it takes you to burn without sunscreen times the SPF number to find your maximum sun exposure time with sunscreen. For example, if it normally takes you 15 minutes to burn, and you use a sunscreen of 20 SPF, then you can go a maximum of 300 minutes in the sun before reapplying. This equation is not always accurate, however, because most people use less sunscreen than the amount used in testing; therefore, reapplication needs to be even more frequent.
The American Academy of Dermatology recommends using a sunscreen that is of an SPF 30 or higher, and protects against both UVA and UVB rays.
In order for sunscreen to be effective, it is important to apply it properly. Here are some tips for using sunscreen:
- Apply sunscreen 15-30 minutes before going outside so that it has time to fully absorb into your skin.
- One ounce is usually enough to cover all surfaces of your body. Typically one ounce is about 2 tablespoons.
- Reapply every two hours or after swimming or heavily sweating.
- Don’t forget your lips! Use a lip balm with an SPF of 30 or higher to protect your lips from getting burned, too.
Soothing a Burn
If you do get burned, there are some easy home remedies you can try to help ease the pain.
- Aloe vera or a cool compress to cool off the burn and reduce stinging.
- Drink water and use lotion to restore moisture back into your skin.
- Blend washed potatoes in a food processor or blender and apply the mixture to the burned area. Once it dries, wash it off. The potatoes help to relieve some of the pain accompanied by the burn.
- Taking an over-the-counter pain reliever such as aspirin may also help to relieve pain and reduce inflammation.
While one sunburn may only cause you a slight inconvenience, repeated exposure to the sun’s UV rays without protection could possibly lead to skin cancer. Because of this, it is important to use sunscreen anytime you will be in contact with the sun and to reapply often. Be sure to use enough to generously cover all exposed areas, and your skin will have a much better chance at surviving the summer.
Are you afraid of going to the dentist? Studies show that about 15% of Americans suffer from dental anxiety or phobia. There are many different factors that may contribute to this fear; however, it is important to overcome dental fears, otherwise it may have a negative effect on your health. Keep reading for some tips to help set your mind at ease at the dentist.
Fear of the Pain/Drill
If the fear of excruciating pain from the drill or other procedure is what’s keeping you from going to the dentist, there are some steps you can take to help make the idea less scary. First, do your research. Familiarize yourself with the procedure so that you know exactly what to expect every step of the way. Learn about the technology used; today’s advanced technology makes many procedures painless. Ask your dentist, too, as his technique may be different from what is normally done.
If you are still hesitant, keep your eyes closed and ask your dentist if you can put in your headphones and listen to music while he is working on your mouth. If you can’t see or hear what’s going on, it may help reduce any pain or discomfort you might otherwise experience.
Fear of Needles
The needle numbs your mouth for the procedure, but what numbs your mouth for the needle? If you’re afraid of that sharp needle piercing your soft gum tissue, talk to your dentist. Depending on the procedure, the dentist may be able to use another means of numbing, such as nitrous oxide. If not, he may be able to use a strong numbing gel to desensitize the area before the needle goes in. It may also help to close your eyes, so that you do not see the needle being put in your mouth.
In some cases, people may be avoiding the dentist because they are embarrassed by the condition of their teeth. If you are embarrassed by your teeth, talk to your dentist. It is a dentist’s job to provide you with dental care – regardless of the state of your teeth. Chances are the dentist has seen much worse, and the only way to repair your smile is to see a dentist. Voice any insecurities you have to your dentist. He or she will be able to ease your mind about getting dental care.
Effect on Overall Health
Severe dental anxiety can have negative effects on your health. Letting fear keep you from seeing the dentist can result in poor dental health, which in turn can affect your overall health. If your teeth and gums become chronically infected, this can affect speech patterns and the ability to chew and digest properly, and even lead to heart disease. Because the effect of avoiding the dentist extends beyond dental health, it is important to overcome any dental fear and go in for regular cleanings.
Dental anxiety keeps many people from visiting the dentist, but that can have detrimental effects on oral health. If fear or nervousness is keeping you from seeing the dentist, talk to your dentist about your concerns. He or she should be able to provide you with what you need to make your experience comfortable.
90% of Americans think they have a healthy diet, according to a survey by Consumer Reports. However, many foods and habits that are widely considered to be healthy may actually be causing more harm than good. Are you promoting a healthy lifestyle, or are your habits hurting you more than you know? Keep reading to find out what foods and habits are surprisingly unhealthy.
Surprisingly Unhealthy Foods
- Dried fruit and nuts: Dried fruit and nuts do have some nutritional value as an excellent source of fiber, vitamin C, and healthy fats and protein. However, the fruit and nut mixtures often have a ton of added salt and sugar. They may even include other items in the mix, such as chocolate chips. All of these things combined turn an otherwise healthy snack into a health hazard. Look for mixes without added sugar or salt, to enjoy the snack without the risk. Or buy plain nuts and dried fruit and make the mix yourself!
- Granola: Granola is a great source of potassium, fiber and protein, but it can also be high in fat and calories. In addition, many of the items eaten with or added to granola are unhealthy, such as yogurt, chocolate or sugar. Try pairing granola with low-calorie cereals to add more nutritional value, and portion control is always key.
- Bran muffin: While bran itself is very heart healthy and friendly to the digestive system, adding it to a muffin somewhat negates the nutritional value. Muffins contain a lot of sugar and fat. In fact, health expert and author Joan Salge Blake even said that a bran muffin could potentially have more calories than a donut! The best option is to head straight for the bran and skip the muffin altogether; but, if you must have the muffin, there are some recipes available for healthier muffins.
- Veggie patties: Veggie burgers certainly have a lot of healthy nutrients in them; however, the pre-made, frozen patties usually contain a lot of added ingredients such as yeast extract, cornstarch and gums which have little nutritional value. Check the label for the ingredients and nutrition information before buying veggie patties to make sure they are a healthy choice.
- Reduced fat peanut butter: You would think anything with reduced fat would be a healthier option than the fatty, regular stuff, right? While oftentimes this is the case, the fat in peanut butter is actually healthy. Removing it therefore eliminates a lot of the nutritional value. Stick with regular peanut butter, but watch your portions since peanuts tend to be high in calories.
Surprisingly Unhealthy Habits
- Using hand sanitizer: While hand sanitizer can be helpful for hand washing on the go, it really isn’t any more effective than soap and water. In addition, some hand sanitizing gels contain the ingredient triclosan, which can actually help promote the growth of bacteria. Look for brands that contain at least 60% alcohol which help kill bacteria more effectively.
- Wearing flip flops: Flip flops help keep your feet cool during the summer, but that’s about the only favor the shoes do for your feet. Flip flops have no arch support or structural support for your feet, which can lead to strained muscles. Likewise, wearing no shoes at all can have a similar effect. For your summer footwear, opt for comfortable sandals that will provide plenty of support for your feet.
- Drinking bottled water: While drinking it bottled is better than not drinking water at all, only drinking bottled water is not the healthiest option. Bottled water contains no fluoride, as opposed to tap water, which does. A fluoride deficiency can lead to tooth decay, so it is important to try to get fluoride in your water. If you are concerned about what might be in tap water, you can get a purifier such as Brita or PUR. These purifiers eliminate any impurities in the water but keep the fluoride.
- Cleaning with disinfecting products: Cleaners that claim to be disinfectant or antibacterial may seem useful in cleaning your home, but inhaling the chemicals in these cleaners can have negative effects on your health. These products contain chemicals called quaternary ammonium compounds, which can lead to asthma if inhaled. In addition, some products also contain a cancer-causing chemical called 2-butoxyethanol. Disinfectant cleaners have not been proven to be any more effective than regular cleaners, so you may want to stick with those if you are concerned about the health risk.
- Overbrushing your teeth: Brushing your teeth is definitely a good thing, but brushing them too hard or too often can be damaging to the enamel, making teeth more prone to tooth decay. Dentists recommend brushing for two minutes, 2-3 times a day with a soft bristled brush to avoid potential damage. If needed, you can rinse away any food particles left over from eating with a glass of water in between brushings.
Eating well and avoiding harmful habits is essential to maintaining a healthy lifestyle. Therefore, it is important to be aware of what could potentially have a negative influence on your health. To find out more about what you can do to be healthier, talk to your doctor.
Dental hygiene is very important to overall health. However, dental care is most effective when done properly. Many people do not realize that they are taking care of their teeth incorrectly. If you’re worried you might be one of these people, read on to discover some helpful tips on proper dental care.
The Proper Way to Brush
Brushing teeth is a daily task. However, many people are unaware that there is a right and wrong way to brush their teeth. In fact, according to a survey by Men’s Health News, 90% of people brush their teeth wrong. Here’s the proper way to brush your teeth, starting with choosing the right toothbrush.
Certain toothbrushes are better for your oral health than others. Choose a toothbrush that is comfortable for you to use, because the more comfortable it is for you, the more likely you are to brush your teeth. Many sizes and handle varieties are available, but these things are a matter of preference. The bristles, however, should be soft. Hard bristles are abrasive and can damage enamel.
In addition, your toothbrush should be stored in an environment that allows it to completely dry in between uses. Toothbrush cases and caps are great for storing your toothbrush during travel, but should not be used immediately after use as they will lock in the moisture, increasing the chance of bacterial growth. Don’t let this fact tempt you to skimp on rinsing your brush after each use, though; leaving the toothbrush un-rinsed can cause bacteria to grow, as well. In addition, you should replace your toothbrush every 3-4 months, as it becomes worn out and is no longer as effective.
How to Brush
Brushing should be done a minimum of twice daily, at morning and at night. Too much brushing, however, can wear away enamel and irritate gums. To prevent this, professionals discourage brushing more than three times a day.
Brushing should take a total of about two minutes, spending about 30 seconds on each quadrant of the mouth. When brushing, the brush should be held at a 45 degree angle, using short strokes in a circular, up and down motion. Many people move their brush horizontally, but this can wear ridges in your enamel that cause teeth to become dull and rough. Don’t forget to get the inner surfaces of your teeth and your tongue, too!
The Proper Way to Floss
Flossing is often neglected, but is an essential part of your daily oral hygiene routine. Flossing gets in the tight spaces that your toothbrush can’t fit into. In addition, flossing has also been linked to the prevention of diabetes and other diseases. However, flossing is only effective when performed correctly; otherwise, it may cause more harm than good.
Choosing the Right Floss
There are many different types of floss available. You should use either nylon floss, which is multifilament, or PTFE (polytetrafluoroethylene) floss with one filament. While the nylon floss is much cheaper, its many filaments make it easy for the floss to tear or shred while in use. PTFE floss is one strand and therefore can easily slide in and out of tight spaces; however, it can be very expensive.
Floss is available in either waxed or unwaxed. Both are effective, so the choice is up to you. It is better to use regular floss instead of harps or Waterpiks, however, as it is the most effective.
How to Floss
To floss, cut off about 18 inches of floss. Wrap the ends around both of your middle fingers until only about 1-2 inches remains. Place in between two teeth and begin flossing in an up and down motion. Curve the floss around the base of each tooth to get any bacteria along the gum line. When you are done, work the floss back down from in between the teeth and go to the next tooth. Be sure to always use a clean section of floss for each tooth, or else you will just be putting bacteria back in your mouth.
Flossing should be done once a day, either in the morning or at night. Some say that flossing should be done before brushing, because the bacteria and food particles removed with floss could be blocking the tooth’s exposure to fluoride if brushing is done first.
The Proper Way to Use Mouthwash
Mouthwash is probably the most overlooked part of oral hygiene with only 31% of adults claiming to use mouthwash. However, while mouthwash is not a necessary part of oral hygiene, it is very beneficial in killing extra bacteria missed from brushing and flossing. It also helps to freshen breath and strengthen teeth.
Choosing Your Mouthwash
There are many types of mouthwash available: fluoride, antiseptic, cosmetic, and more. There is no one “right” mouthwash, so you should choose the one that best fits your dental needs. However, make sure that whichever mouthwash you choose is non-alcoholic. Alcohol dries out your mouth, which can promote the growth of bacteria because saliva has anti-bacterial properties. Mouthwash that contains alcohol could actually cause more harm than good, so be sure to stay away from alcohol based products.
How to Use Mouthwash
After you’ve brushed and flossed, measure out 20mL of mouthwash and gargle the liquid for 45-60 seconds. Be careful not to swallow any of the mouthwash. After you are finished gargling, spit the mouthwash out and rinse with water, unless stated otherwise in the directions on the bottle. It is best not to eat or drink anything for 30 minutes after use for maximum effectiveness.
If you use a mouthwash, you should use it one to two times a day. It can be used at any time of day, though some say it is most effective in the afternoon so the fluoride can integrate into the tooth structure.
While brushing your incorrectly is definitely better than skipping brushing all together, it is not as effective and could potentially damage your teeth. For the best results, use the proper methods listed for brushing, flossing and using mouthwash. Talk to your dentist for more information on proper dental care.
March 20th marked the first day of spring this year, and for many people that means warmer weather, green grass and blooming flowers. For some, however, the beginning of spring is not as cheerful an event. To these people, spring only has one meaning – allergies.
Roughly 20% of the American population suffers from some sort of allergy. Because spring is the time of year when everything begins to bloom and grow, it is also the time of year when airborne allergies like pollen become most prevalent. Keep reading to find out more about seasonal allergies and what you can do to avoid them.
Cause of Allergies
Have you ever wondered how allergies develop, or why you react to a particular allergen? The exact cause of allergies is unknown, but there are many factors that are thought to play a part in the development of allergies.
- Genetics. Certain allergies can be hereditary. If one or both of your parents are allergic to something, there’s a good chance you will develop that allergy as well. However, you may not always develop the same allergy as your parents. While allergies are typically genetic, the substance you are allergic to may vary from generation to generation.
- Age. Chances of allergy development can increase after repeated exposure to a particular substance that the body does not recognize. Therefore, experts believe that the likelihood of developing allergies increases later in life due to continuous exposure to an allergen.
- Immune Response. Scientists also believe that how your immune system responds to certain intruders plays a part in the development of allergies. If the immune system identifies a substance that has entered the body as a dangerous intruder, it will fight to eliminate the substance and develop a sensitivity to it.
- Your Environment. Where you live (or are) can also have an effect on allergic reactions. If a certain allergen has a high prevalence in a particular area, it is unlikely that people who live in that area will react to that substance. Because they are exposed to it often, the immune system recognizes it as a normal substance. However, if someone from a different area is exposed to that allergen, they may develop the allergy because their immune system does not recognize it.
Allergies can be treated with prescription or over-the-counter medication. Any of the following types of medicine are commonly taken for allergies:
- Nasal steroids
- Expectorants such as guaifenesin
In addition, some non-medical treatments may be done to help relieve allergies. Some types of acupuncture have been known to treat allergies, as well as some over-the-counter saline sprays. You may also consider getting an air filter for your house to make sure the air that is coming in is pure. It is also a good idea to avoid going outside or to places where your allergies may be triggered.
If you’re prone to allergies, you may want to take extra caution during the spring months to avoid coming into contact with allergens. Try one of these helpful tips for allergy-proofing your home.
- Close your windows and doors. In both your car and at home, open windows/doors invite airborne allergens in. Keep them closed to keep out potential allergy-causing substances.
- Don’t use fans. Not only do fans help spread allergens throughout a room, they are also a common breeding ground for some common allergens, such as dust mites. Avoid fan usage during allergy season as it may worsen allergies.
- Dry clothes inside. Drying clothes on a clothes line outside may attract substances to stick to clothing, causing allergies. Keep clothes allergen-free by drying them inside.
- Wear a hat/sunglasses. If you can’t avoid going outside for the duration of allergy season, try putting on a hat or sunglasses. This will help keep allergens out of your eyes and face to avoid irritation.
If you think you may have allergies, contact your doctor. There are tests that can be taken to find out what specifically you are allergic to, and a doctor can prescribe medication as needed. While most allergies do not have a permanent cure, they are highly treatable with the proper medication and care.


Peacemaker, warrior, cross-cultural community builder, American Indian activist, tribal elder, cultural preservation consultant, Native American issues advisor, Founding Mother of the modern Indian repatriation movement, Nobel Peace Prize nominee, local Unsung Hero, religious advisor, and the Rosa Parks of NAGPRA -- these are a few of the descriptors applied to a unique woman who spent the last 16 years of her life in Ames (1987-2003).
Maria Pearson (Running Moccasins) was a proponent of human rights for all Americans, and, in particular, those of American Indians. A member of the Yankton Sioux tribe, she worked tirelessly on behalf of Native American peoples in Iowa and nationwide. Largely through her efforts, the Iowa Burial Code was changed in the 1970s mandating the reburial of American Indian skeletal remains. Her work in Iowa and continued advocacy on behalf of Native American rights was instrumental in the passage of important federal legislation, most recently the Native American Graves Protection and Repatriation Act (NAGPRA) of 1990. This act provides comprehensive protection for Native American burials and associated artifacts on federal properties and in public and private museums and collections. Her accomplishments in this area were recognized not only at a national level but in several international conferences dealing with human rights and repatriation issues.
In 1990 she traveled to Venezuela to attend the Second World Archaeological Congress as an official indigenous member of the Executive Council. The BBC made a documentary program, Bones of Contention, about Maria that was broadcast in 1995.
Maria was featured in the Leadership 2003 series of the Ames Tribune.


Let food be your medicine! In India, food has been used to cure minor ailments for years. Learn how you can cure aches and pains, lifestyle conditions, minor skin and hair problems and common ailments at home!
Find Home Remedy
Body rash or skin rash is usually an inflammation on the skin. There is a change in color and texture on the affected area. Body rash could be the result of irritation, disease or an allergic reaction. Allergies could be to food, plants, chemicals, animals, insects or other environmental factors. Body rash could affect the entire body or could be limited to a specific area. Sometimes body rashes could be contagious.
Body Rash Mix 10-12 basil leaves with 1 tbsp olive oil, 2 garlic cloves, salt and pepper. Apply a coat of this mixture to the rashes.
Holy Basil leaves
Salt and Pepper
Take foods rich in Vitamin C. It has antioxidant properties that will help in fighting body rash.
Avoid foods causing allergic skin rash on the body or back.
Do not scrub your skin when there is a rash breakout.
Avoid using soap, switchover to gentle body cleansers.
Do not expose the area to direct sunlight and hot water.
Apply olive oil to the affected area to get relief from the body rash.
Another effective natural cure for body rash and back rash is to apply baking powder on the affected area.
Pour a cup of uncooked oatmeal into your bathwater and soak in the tub for natural treatment of body rash. It relieves inflammation.
To relieve from skin rash, make a poultice from dandelion, yellow dock root and chaparral.
All advice is intended to be for informational purposes only, and not a substitute for professional or medical advice and/or diagnosis/treatment. DesiDieter does not provide medical advice and is not a substitute for professional medical advice from a qualified healthcare provider.


Per Square Meter
Warm-up: Relationships in Ecosystems (10 minutes)
1. Begin this lesson by presenting the powerpoint, “Per Square Meter”.
2. After the presentation, ask students to think of animal relationships that correspond to each of the following types; Competition, Predation, Parasitism, and Mutualism
a. For example, two animals that compete for food are lions and cheetahs (they compete for zebras and antelopes)
3. Record the different types of relationships on the board.
Activity One: My Own Square Meter (30 minutes)
1. Have students go outside and pick a small area (about a square meter each) to explore. It is preferable that this area be grassy or ‘natural’. The school playground might be a good spot.
2. Each student should keep a list of both the living organisms and man-made products found in their area (i.e grass, birds, insects, flowers, sidewalk etc.) Students are allowed to collect a few specimens from this area to show to the class. If students do not have jars, they can draw their observations. *See Reproducible #1
Activity Two: Who lives in our playground? (10 minutes)
1. After listing, collecting, and drawing specimens, students should return to the classroom and present their findings.
a. Have the students sit in a circle. Each student should read his or her list of findings out loud. If they collected specimens or drew observations, have them present them to the class.
2. Make a list of these findings on the board. Only write repeated findings once (to avoid writing grass as many times as there are students). Keep one list of living organisms and one list of man-made products.
3. For now, focus on the list of living organisms. As a class, help students name possible relationships between the organisms. See if they can find one of each type of relationship. For example, a bee on a flower is an example of mutualism because the nectar from the flower nourishes the bee and in return, the bee pollinates the flower.
Activity Three: Humans and the Environment: Human Effect on one Square Meter (15 minutes)
1. Now that students have focused on the animal relationships of their square meter, it is time to examine the effect of humans on the natural environment. Focus on the human-made product list. Ask students to consider the possible relationships between the human-made products and the environment. Prompt a brief class discussion on the effects of man-made products on the environment. Use the following questions as guidelines.
a. What is the effect of an empty drink bottle (or any other piece of trash) in a grassy field? Will it decompose? Will it be used by an animal as a habitat or food?
Answer: Trash is an invasive man-made product. Most trash is non-bio degradable and is harmful to the environment and to eco-system relations.Therefore, it is a harmful addition to the square meter.
b. Who left the bottle there? Do you think they are still thinking about it? Did they leave it there on purpose? Why did they leave it there?
Answer: Most people litter thoughtlessly. They are not thinking about their actions and how they may effect the environment or eco-systems. It is important that people recognize that litter has a major effect on the environment.
c. What about a bench? Does a park bench have the same effect on the environment as a piece of trash?
Answer: A park bench can be considered as a positive human-made product. A park bench has little negative effect on the environment and even helps humans further appreciate eco-systems. The Park Bench may even provide shelter or a perch for the eco-systems living organisms.
d. Is there a difference between positive human-made products and negative ones? What are some examples of each?
Answer: Yes, there is a difference between positive and negative human-made products. Positive products have minimal effect on the functioning of eco systems whereas negative products have major effects on eco systems. An example of a positive human-made product would be a solar powered house. An example of a negative human-made product would be a car that produces a lot of pollution.
Wrap Up: Our Classroom Eco-Web (20-30 minutes)
1. Have students create classroom artwork by illustrating the relationships between their eco-systems.
2. Each student should draw at least two components of his or her square meter.
3. After everyone has finished their illustrations, create a web relating the illustrations. Draw arrows between illustrated components with written indications of the type of relationship exemplified.
4. Post the finished product in the classroom so that students can see the interconnectedness of the earth’s eco-systems.
Extension: Exploring Aquatic Eco-Systems (On-going Activity)
Students can explore another type of eco-system by creating a classroom aquarium or terrarium. The supplies for both of these mini eco-systems can be found at your local pet store. Students should help set up and maintain the aquarium or terrarium throughout the year. Periodically, students should observe how the mini-ecosystem is progressing, note changes, and assess the relationships between the organisms of the eco-system. This way, students are able to directly participate in the functioning of a natural system.
Another related activity might be to take your students on a field trip to a different eco-system from that of your school. If you live near a river, lake, or ocean take them there to explore different ecological relations. If you live in a city, examples of diverse eco-systems can be found at the local zoo or aquarium.


- Chrysanthemum leucanthemum L.
- Composite family
Parts Usually Used
Description of Plant(s) and Culture
White weed is a perennial plant; the furrowed, simple or sparingly
branched stem grows from 1-3 feet high and bears alternate, toothed,
sessile and clasping leaves. Both stem and radical leaves are spatulate
or obovate with rounded ends; the radical leaves are more strongly
toothed. The stem, and the branch, if any, is topped by a solitary
flower head with yellow disk and white rays.
Grows in fields and waste places over most of North America, Europe,
and Asia as a common weed.
Diaphoretic, diuretic, irritant
White weed is very seldom used today. Can promote sweating and used
to treat urinary and dropsical problems. Used to treat pulmonary diseases,
palsy, sciatica, runny
eyes, and gout. Externally;
applied to promote the flow of blood to the surface and to treat warts,
pustules, ulcers, wounds,
bruises. The dried plant and even the flowers of the common daisy,
boiled up with some honey, have been recommended as an alleviant to
attacks of asthma.


Alzheimer's Disease Treatment
Alzheimer's Disease Medications and Treatments
Individuals with Alzheimer's disease should remain physically, mentally, and socially active as long as they are able. It is believed that mental activity can slow the progression of the disease. Puzzles, games, reading, and safe hobbies and crafts are good choices. These activities should ideally be interactive. They should be of an appropriate level of difficulty so that the person does not become overly frustrated.
Behavior disorders such as agitation and aggression may improve with various interventions. Some interventions focus on helping the individual adjust or control his or her behavior. Others focus on helping caregivers and other family members change the person’s behavior. These approaches sometimes work better when combined with drug treatment for depression, mood stabilization, or psychosis.
Alzheimer's disease symptoms can sometimes be relieved, at least temporarily, by medications such as cholinesterase inhibitors and NMDA inhibitors, which have been approved by the US Food and Drug Administration (FDA) for the treatment of moderate to severe Alzheimer's disease.


Miraflores is the name of one of the three locks that form part of the Panama Canal and the name of the small lake that separates these locks from the Pedro Miguel Locks upstream. In the Miraflores locks, vessels are lifted (or lowered) 54 feet (16.5 m) in two stages, allowing them to transit to or from the Pacific Ocean port of Balboa (near Panama City). Ships cross below the Puente de las Américas (Bridge of the Americas) which connects North and South America.
As of 2005, the following schedule was in effect for ship transit through the locks. From 06:00 to 15:15, ships travel from the Pacific towards the Atlantic. From 15:45 to 23:00 ships travel from the Atlantic towards the Pacific. At any other time, travel is permitted in both directions,
A modern visitor centre allows tourists to have a full view of the Miraflores locks operation. Binoculars are recommended to view the Pedro Miguel Locks in the distance. As of 2010, admittance for adults to the visitors centre costs US$5 (observation terrace) or $8 (supporting exhibits and video show added) with lower rates for children and senior citizens. Panama residents are admitted free of charge. Viewing a transit operation at the centre can take more than 30 minutes. A souvenir shop in the base level sells related merchandise. The centre closes at 17:00.
The Panama Canal (Spanish: Canal de Panamá) is a 48-mile (77.1 km) ship canal in Panama that connects the Atlantic Ocean (via the Caribbean Sea) to the Pacific Ocean. The canal cuts across the Isthmus of Panama and is a key conduit for international maritime trade. There are locks at each end to lift ships up to Gatun Lake (85 feet (26 m) above sea-level). Gatun Lake was created to reduce the amount of work required for the canal. The current locks are 110 feet (33.5 m) wide. A third, wider lane of locks is being built.
France began work on the canal in 1881, but had to stop because of engineering problems and high mortality due to disease. The United States (US) later took over the project and took a decade to complete the canal in 1914, enabling ships to avoid the lengthy Cape Horn route around the southernmost tip of South America (via the Drake Passage) or to navigate the Strait of Magellan. One of the largest and most difficult engineering projects ever undertaken, the Panama Canal shortcut made it possible for ships to travel between the Atlantic and Pacific Oceans in half the time previously required. The shorter, faster, safer route to the US West Coast and to nations in and along the Pacific Ocean allowed those places to become more integrated with the world economy.
During this time, ownership of the territory that is now the Panama Canal was first Colombian, then French, and then American; the United States completed the construction. The canal was taken over in 1999 by the Panamanian government, as long planned. Annual traffic has risen from about 1,000 ships when the canal opened in 1914, to 14,702 vessels in 2008, the latter measuring a total of 309.6 million Panama Canal/Universal Measurement System (PC/UMS) tons. By 2008, more than 815,000 vessels had passed through the canal, many of them much larger than the original planners could have envisioned; the largest ships that can transit the canal today are called Panamax. The American Society of Civil Engineers has named the Panama Canal one of the seven wonders of the modern world.


Walking and cycling have long been considered the most environmentally sound methods of getting around. They still are but some environmentalists have argued that food production has become so fossil-fuel intensive that driving could be considered greener than walking (though the analysis has been debunked as flawed).
What of other, more obviously polluting, modes of transport? The data below gives an idea of how your carbon footprint might grow depending on how you make a journey. If you were to take an average domestic flight rather than a high-speed electric train, you'd be personally responsible for 29 times as much carbon dioxide.
The data also highlights how the UK government's plans to electrify parts of the rail network could cut emissions. Diesel trains are responsible for more greenhouse gases than electric trains, even taking into account Britain's carbon-heavy electricity production.
On the roads, next-generation hybrid and electric vehicles can help those of us behind the wheel to be that little bit greener. However, no journey is completely carbon free.


Notes and Comments on the "Western Rite"
The question of rites is precisely not, has never been and cannot be a mere question of rites per se , but is and has always been a question of faith, of its wholeness and integrity. The liturgy embodies and expresses the faith, or better to say, the experience of the Church, and is that experience's manifestation and communication. And when rites, deta ched from their nature and function, begin to be discussed in terms of "acceptance" and "rejection" or "likes and dislikes", the debate concerning them becomes meaningless.
For many people, the eastern and western rites are two entirely different and self-contained "blocks" ruling out, as an impure "hybridization", all contacts and mutual influences. This, however, is wrong - first of all, historically. In a sense, the enti re history of Christian worship can be termed a history of constant "hybridizations" - if only this word is deprived of its negative connotations. Before their separations, the east and the west influenced one another for centuries. And there is no exagg eration in saying that the anaphora of St. John Chrysostom's Liturgy is infinitely 'closer' to the Roman anaphora of the same period than the service of Holy Communion in the Book of Common Prayer is to, for example, the Tridentine Mass.
What makes a western rite Orthodox? For many proponents of the western rite, all it takes is a few additions and a few deletions, e.g. "striking the filioque " and "strengthening of the epiclesis." This answer implies, on the one hand, that there exists a unified and homogenous reality identifiable as the western rite and, on the other hand, that except for two or three "heretical" ingredients or omissions, th is rite is ipso facto Orthodox. Both presuppositions are wrong.
Indeed, one does not have to be an "authority on the West" in order to know that liturgical development in the West was shaped to a degree unknown in the East by various theologies, the succession of which - and the clashes of one with another - constitute western religious history. Scholasticism, Reformation, Counter-Reformation, etc., have all resulted in sometimes radical liturgical metamorphoses and all have had a decisive impact on worship. Therefore, one should speak today not of the western rite, but of western rites, deeply - if not radically - differing from one another, yet all reflecting in one way or another, the western theological tragedy and fragmentation. This does not mean that all these rites are "heretical" and simply to be condemned. It only means that, from an Orthodox point of view, their evaluation in terms merely of "deletions" and "additions" is - to say the least - inadequate. For the irony of our present situation is that while some western Christians come to Orthodoxy in order to salvage the rite they cherish ( Book of Common Prayer , Tridentine Mass, etc.) from liturgical reforms they abhor, some of these reforms, at least in abstacto , are closer to the structures and spirit of the early western rite - and thus to the Orthodox liturgical tradition - than the later rite, those precisely that the Orthodox Church is supposed to "sanction" and to "adopt."
It is my deep conviction that the eastern liturgical tradition is alone today in having preserved, in spite of all historical "deficiencies", the fullness of the Church's lex orandi and constitutes, therefore, the criterion for all liturgical evaluations.
Father Alexander Schmemann (1920-1983)
(SVTQ 24/4, 1980)
The Priest. A Newsletter for the Clergy of the Diocese of San Francisco. Issue No. 5, May 1996
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Do Radioisotope Clocks Need Repair? Testing the Assumptions of Isochron Dating Using K-Ar, Rb-Sr, Sm-Nd, and Pb-Pb Isotopes
by Steven A. Austin, Ph.D.
RATE II: Radioisotopes and the Age of The Earth: Results of a Young-Earth Creationist Research Initiative, (Volume II), L. Vardiman et al., eds. (San Diego, CA: Institute for Creation Research and the Creation Research Society, 2005)
The assumptions of conventional whole-rock and mineral isochron radioisotope dating were tested using a suite of radioisotopes from two Precambrian rocks. Amphibolite from the Beartooth Mountains of Wyoming shows evidence of thorough metamorphism by isochemical processes from andesite by an early Precambrian magma-intrusion event. A diabase sill, exposed within the wall of Grand Canyon at Bass Rapids, formed by a rapid intrusion event. The event segregated minerals gravitationally, apparently starting from an isotopically homogeneous magma. Although K-Ar, Rb-Sr, Sm-Nd, and Pb-Pb methods ought to yield concordant isochron dates for each of these magmatic events, these four radioisotope pairs gave significantly discordant ages. Special allowance was made for larger-than-conventional uncertainties expressed as 2σ errors associated with the calculated “ages.” Within a single Beartooth amphibolite sample, three discordant mineral isochron “ages” range from 2515±110 Ma (Rb-Sr mineral isochron) to 2886±190 Ma (Sm-Nd mineral isochron). The diabase sill in Grand Canyon displays discordant isochron “ages” ranging from 841.5±164 Ma (K-Ar whole-rock isochron) to 1379±140 Ma (Sm-Nd mineral isochron). Although significant discordance exists between the K-Ar, Rb-Sr, Sm-Nd, and Pb-Pb radioisotope methods, each radioisotope pair appears to yield concordant “ages” internally between whole-rocks and minerals. Internal concordance is best illustrated from the Bass Rapids diabase sill by the tightly constrained Rb-Sr whole-rock and mineral isochron “ages” of 1055±46 Ma and 1060±24 Ma, respectively. The most problematic discordance is the Sm-Nd and Pb-Pb whole-rock and mineral isochron “ages” that significantly exceed the robust Rb-Sr whole-rock and mineral isochron “ages.” It could be argued that the robust Rb-Sr whole-rock and mineral isochron “ages” are in error, but an adequate explanation for the error has not been offered. The geological context of these Precambrian rocks places severe limitations on possible explanations for isochron discordance. Inheritance of minerals, slow cooling, and post-magmatic loss of daughter radioisotopes are not supported as processes causing isochron discordance in Beartooth amphibolite or Bass Rapids diabase. Recently, geochronologists researching the Great Dyke, a Precambrian layered mafic and ultramafic intrusion of Zimbabwe in southeast Africa, have documented a similar pattern of radioisotope discordance. Alpha-emitting radioisotopes (147Sm, 235U, and 238U) give older “ages” than β-emitting radioisotopes (87Rb and 40K) when applied to the same rocks. Therefore, it can be argued that a change in radioisotope decay rates in the past could account for these discordant isochron “ages” for the same geologic event. Conventional radioisotope clocks need repair.
radioisotope decay rates, isochron dating, RATE II
For Full Text
Please see the Download PDF link above for the entire article.


During the “automation scare” in the 1950s, people were intrigued yet suspicious about the power of computers. Would they someday send us into permanent unemployment? Could robots eventually take over the world?
The original goal of artificial intelligence was to build a person out of silicone. Although scientists made quick progress in building computers and robots that amazed us, they never came close to actually replicating the human brain.
“Machine learning” was first introduced 50 years ago. This concept focuses on computers’ ability to “learn” not through human programming, but through experience and pattern identification. For example, machine learning allows a computer to become a masterful chess player by observing good and bad moves and learning from mistakes. While a computer looks at every possible move up to 20 to 40 moves ahead, humans use more conceptual skills to decide how to make moves.
In a recent PBS NOVA documentary “The Smartest Machine on Earth,” researchers explore powerful new tools in computing, like “Watson,” a supercomputer with a brain, or central processing unit, that can process 500 gigabytes, or the equivalent of a million books, per second. In 2009, Jeopardy producers came to IBM to size up Watson’s abilities.
You might remember when 74-win Jeopardy! champion Ken Jennings went head-to-CPU with Watson a few years back. During Watson’s “training” for the match, the scientists at IBM had to constantly expose Watson to large amounts of possible answers to questions so that it would have sufficient rules and logic to come up with correct answers.
Having studied thousands of questions, within a few milliseconds Watson analyzed every possible answer. It learned to make statistical judgments based on how pieces of evidence work together in the database of information scientists gave to it. In the end, the competition was close, but Watson pulled ahead and won the show.
Scientists who worked with Watson point out that there are two ways of building intelligence. We can either write down the recipe or let it grow by itself. It’s clear that we don’t know how to write down the recipe, according to scientists. Machine learning enables computers to grow their own intelligence.
Scientists continue to debate the ability of machines to truly displace us. There is so much that we know that we don’t even realize we know, such as the fact that ice is cold and sandpaper is rough. Our common sense knowledge seems too complex to program into a computer. Human intelligence is deeply rooted in language and emotion.
Without experience or emotion, can computers ever understand the world the way we do?
They don’t connect to human cognition on an emotional level, such as the way a symphony or a play can move us. Language and context are barriers for understanding. For example, figuring out the meaning of a sentence like “I shot an elephant wearing pajamas” is very difficult for computers. Was the shooter wearing pajamas or was the elephant? Was a camera or a gun used to do the shooting?
Of course machine learning goes far beyond winning trivia game shows. It’s driving a computing revolution. According to an article in Wired magazine , today artificial intelligence isn’t trying to re-create the brain. Instead, it relies on machine learning, massive data sets, sophisticated sensors, and clever algorithms to master discrete tasks. “In short, we are engaged in a permanent dance with machines, locked in an increasingly dependent embrace.”
Machine learning makes it possible to predict the weather days in advance. It lets companies like Amazon or Zappos suggest products for you based on what you’ve chosen before. It allows doctors to better diagnose medical conditions.
It’s even helping us communicate with people through speech recognition, which was once though impossible. Computers are now trained with millions of patterns of human speech, and the accuracy continues to improve. There are even apps for the iPad and iPhone that you can use to quickly record something and translate it on the spot when talking to a person who speaks another language.
IBM imagines a time when a computer will operate like the one in Star Trek—as information-seeking tools that communicates with us to ensure we get what we want. This thinking signals a shift in the way we use and accept computers in our lives, compared to the fear and suspicion we felt half a century ago.


Four Laws That Drive the Universe
By Peter Atkins
(Oxford University Press, USA, Hardcover, 9780199232369, 130pp.)
Publication Date: November 2007
Written by Peter Atkins, one of the worlds leading authorities on thermodynamics, this powerful and compact introduction explains what these four laws are and how they work, using accessible language and virtually no mathematics. Guiding the reader a step at a time, Atkins begins with Zeroth (so named because the first two laws were well established before scientists realized that a third law, relating to temperature, should precede them--hence the jocular name zeroth), and proceeds through the First, Second, and Third Laws, offering a clear account of concepts such as the availability of work and the conservation of energy. Atkins ranges from the fascinating theory of entropy (revealing how its unstoppable rise constitutes the engine of the universe), through the concept of free energy, and to the brink, and then beyond the brink, of absolute zero.
C.P. Snow once remarked that not knowing the second law of thermodynamics is like never having read a work by Shakespeare. This brief but brilliant book introduces general readers to one of the cornerstones of modern science, four laws that are as integral to the well-educated mind as such great dramatic works as Hamlet or Macbeth.