Amphibians in losing race with environmental change
...tists point out that evolution is not a precise or perfect process - it takes time, is constrained by historic changes and compromises, and does not always allow a species to adapt in a way that meets rapidly changing conditions. Through genetic variation and natural selection pressures, some species or pop...Asymmetry due to perfect balance
...ime how cells are able to establish caps with near perfect spatial precision", says Wedlich-Soldner. "It looks almost like a cut-off." Taken together the results show that a balance of diffusion, active transport and endocytosis is enough to describe the process of cortical polarity with exceptionally high...Halos and horns: Fixing the 'taste' of diet soda
... the one for sucrose, which humans describe as the perfect sweetness," Lee said. But the most compelling piece of evidence is the verdict of Lee's sensory panel--12 people trained for four weeks to use a 15-point scale in order to rate the characteristics that contribute to the mouth-feel of diet and regul...Everything starts with recognition
...use specific drugs to relieve pain? To work as a perfect machine, our body ultimately relies on the capability of each little part (molecule) to know a specific function and location out of countless possibilities. To do this, molecules carry information in different ways. An international team at the Max ...Quantum secrets of photosynthesis revealed
...orms. "Nature has had about 2.7 billion years to perfect photosynthesis, so there are huge lessons that remain for us to learn, Engel said. The results were reporting in this latest paper, however, at least give us a new way to think about the design of future artificial photosynthesis systems."......the forests of west and Central Africa, An almost perfect juxtaposition exists in many areas between the distribution of elephants and of people, and in many areas elephants are lost as encroachment into the forest increases. The surveys were conducted under the auspices of MIKE (Monitoring of the Illegal ...Evolutionary Medicine Meeting will advance a new scientific discipline
... he adds, "these epidemiological studies provide a perfect scenario to study evolutionary changes that are taking place at the genomic, physiological and morphological levels among individuals, families and populations, and to extend these results to prescribe medications based on natural relationships of in...Press conferences at the year's largest physics meeting
...iting these negative-index materials for producing perfect lensing and other odd optical properties. Vladimir Shalaev (Purdue) will report on a new record-setting metamaterial (paper W38.1). (2) Graphene, essentially 1-atom-thin carbon sheets, were presented at last years meeting by no more than a few grou...Mine runoff continues to provide clues to microbial diversification
...ofilm communities found in the mine runoff provide perfect research subjects because they have fewer organisms than most communities found in nature. The reason, Hettich noted, is that these environmental conditions a pH of 0.8 -- are too extreme for most organisms to survive. A pH level of 7 is considered ...UN, industry, others partner to create world standards for e-scrap recycling, harvesting components
...e leadership of the United Nations University is a perfect set-up to ensure that basic solutions, workable in countries around the globe, will be developed." "Ericsson is in the process of implementing globally an Ecology Management Provision to handle all electronic waste resulting from customer operati...Largest physics meeting of the year, in Denver
...t the statistics used in making the curve were not perfect but that wouldn't change the net conclusion much, namely that anthropogenic warming was taking place. David Randall (Colorado State) will talk about counting clouds and, more generally, how to address the problem of accommodating such different size ...Medieval Islamic designs reveal breakthrough in tiled pattern-making
...rih tiles at two different sizes to produce nearly perfect quasicrystalline patterns, reflecting mathematical procedures not understood in the West for another 500 years. ...New research finds that a natural family planning method is as effective as the contraceptive pill
...spective cohort study that clearly defines STM and perfect and imperfect use, and which defines intended and unintended pregnancies, classifying them according to the couples intentions before conception. The researchers selected data from a cohort of 900 women who were part of a much larger study of 1,599...Problem forgetting may be a natural mechanism gone awry
... said. After all, we do not remember everything in perfect detail and we would not want to. This same mechanism probably is used to clear the brain circuits and make them ready to be used the next day. However, this mechanism in excess may lead to rapid forgetting as seen during brain aging. Fosters lab gr...Cancer that colonizes our bodies
...n Borstel, cancer is a metaphorical example of the perfect invasion by a founder species. Like the first pregnant finch that landed on a deserted island in the Galapagos Archipelago, the first cancer cell in the human body has to undergo many mutations through many generations to establish itself as an invad...Neuroscientist Robert Sapolsky will discuss stress, health, Feb. 17 at AAAS meeting
...ist, so it makes me absolutely crazy, but it makes perfect sense. If you have come up with a system that not only tells you why things are but is capped off with certain knowledge that some thing or things respond preferentially to you, you're filling a whole lot of pieces there--gaining some predictability,......impacting our environment, and dinoflagellates are perfect for tracking the effects because they are sensitive to water temperature, the amount of salt in the water, and the amount of nutrients, she says. The fossils I study are a good way of tracking the past, so that we can predict the future and be better...EO Lawrence Award goes to 8 scientists and engineers
...high-nitrogen transition metal complexes which are perfect precursors for preparing metallic nanofoams. She also designs and synthesizes a unique class of organic polyazido compounds containing no carbon-carbon bonds that transcend the carbon-carbon paradigm. These organic compounds are the ideal feedstock...Genomatix and Molecular Connections form strategic partnership
... scientists," he continues. In my eyes this is a perfect match. From all what I have seen, Molecular Connections adheres to the same rigorous quality standards as Genomatix does," he concludes. Mr. Jignesh Bhate, CEO of Molecular Connections remarked "We are happy to be associated with Genomatix. We beli......eking nectar and spreading pollen, may look like a perfect model of random interaction. But ecologists have d...e generalists, able to feed on any flower, causing perfect network nestedness; while complementarity alone would mean that specialist pollinators do not intera...