Student science contest participation influences study, career choices, alumni say
...ings." "The ABC goes one better in providing you with a scientific mentor. That triples the learning experience." Barfett and his partners were the first place winners in the 1998 ABC London, Ontario competition for a project that found an innovative way to deal with the problem of hog was...Climate change plus human pressure caused large mammal extinctions in late Pleistocene
...ey saw, like a blitzkrieg," said Barnosky. "But if you look at all the evidence, it's clear that while hu..., at least 97 were extinct by 10,000 years ago. If you look at localized extinctions instead of global extinctions, 121 genera disappeared from at least on...Rare childhood genetic syndrome identified
...kens the calcium channel to a screen door. "After you go through the screen door, it automatically closes," he says. This mutation dismantles the automatic closing mechanism, so the door just stays open." As a result, cells are overwhelmed by an influx of calcium. Because calcium-channel blocking drug...Pack-MULEs are toting a new look at plant evolution
EAST LANSING, Mich. It's not too often you pick up a scientific journal to dig into a good mystery. Ning Jiang et al. admittedly aren't going to give Agatha Christie a run for her money, yet in the Sept. 30 edition of the British science journal Nature, the article explores some surprising u...Alzheimer's disease is not accelerated aging
...kner of Washington University in St. Louis. "When you start to look across the literature, lots of data points converge suggesting there are certain changes that take place in aging that are not what cause Alzheimer's disease." Buckner is the author of a review article published in the September 30, 20...Half-million dollar landmark achieved for the Methuselah Mouse Prize
...ouse Prize is the best and most effective way that you can help ensure that human biological rejuvenation technologies are developed and widely available as quickly as possible. The future return on your investment is a longer, healthier, and ultimately better quality of life for yourself and your loved ...Cancer vaccine based on pathogenic listeria bacteria shows promise targeting metastases
...s to using listeria therapeutically, which is, how you create a strain that is safe enough to move forward into the clinic," said David Cook, vice president of research and development for Cerus. "With this strain, we are now moving from essentially pure research to developing clinical applications, plan...Researchers identify protein promoting vascular tumor growth
...healing process. "There are times when you want to promote angiogenesis, but not with tumors, because it contributes to tumor growth," Gordillo said. "MCP-1 can be brought in as a repair response to help people with wounds, but it can make negative contributions to the health and well-being o...Winning combination to build bone density in children
...In reality we are talking about the sort of energy you would expect kids to expend when playing around outside with a ball or rope," said Dr. Eston. "A brisk walk at about 4 mph would do the trick. We are talking about raising the resting energy levels by about 6-8 times. The idea is to 'accumulate' th...Study: Emission of smog ingredients from trees is increasing rapidly
...those biological correlations," said Purves. "What you want is a fast-growing tree that doesn't produce a...nds may have more of one species than another, and you could call that natural change. But here in New Jersey, the mix of trees is affected by the populati...Far more men than women favor routine paternity testing at birth
... "It comes out pretty much the same, whether you ask it by itself or ask it in the context of other questions, and no matter what order the questions are in," Rohwer said. Smaller groups of those surveyed were questioned further about their responses. A high number of women who favored ro...UCSF scientist Joe Derisi named MaCarthur Fellow
...een a prime focus of pharmaceutical companies. "If you have an infectious disease like malaria, you're out of luck if don't have a credit card," he once said. An outspoken advocate of making scientific findings freely accessible to scientists around the world, many of whom cannot afford to...Wisconsin scientists develop quick botox test
... "We could screen one million drugs at a time, and you can do all the screening using live cells." The potential upshot of such a screening technology could be the development of drugs that act like a prophylactic to confer protection from botulinum poisoning. The new tests, according to Chapman, can be ...DNA barcode finds four new bird species
...en to revision," says Stoeckle. "Once you build a library, then many people can take advantage of it," adds Stoeckle. The barcode technique has several advantages that complement traditional methods of identifying species. It requires only a small sample of tissue so that wildl...Researchers devise potent new tools to curb ivory poaching
...ere,'" he said. "That's the problem in the forest you don't notice the change in population until it's so dramatic that it's almost too late to do anything about it." Wasser is lead author of a paper describing the new means of determining ivory origins, being published the week of Sept. 27 in the Proc......l with entirely different properties from bone. If you can control the interactions between proteins and crystals, the same principal can be applied to nano-patterning and nano-building. Shaws co-authors are PNNL chief scientist Allison A. Campbell and Michael L. Paine and Malcolm L. Snead of USCs Cente...University of Alberta researcher looks for clues to mysterious disease
...g radiation and chromosome instability. "If you want to study a conserved biological process, it makes sense to do it in a system where you can do all these genetic tricks," said Campbell of being able to create mutant proteins and manipula...Study explores gene transfer to modify underlying course of Alzheimer's disease
...important for memory and cognitive function. "If you can positively affect the basal forebrain, it may have a widespread effect on the entire brain because projections from that area reach out to all other parts of the brain, delivering the important neurotransmitter acetylcholine," said Arvanitakis. ......hallus is very thin. This is something unique that you don't find in very many species." Riosmena-Rodriguez said additional samples and further testing are needed to confirm whether the second species is indeed new. Scientists believe rhodoliths have been present in the world's ocea......rporate the costs and benefits of a situation. Say you like oranges better than apples, but oranges cost ... fruit, the utility function says how many of each you should buy. Similarly, Krding and colleagues observed people's preferred movements, then inferred an...