Smart polymers provide size-selective switches to turn proteins on, off
...s like diagnostics, which usually involve steps of capture and release. Computing is another area in which the technology could apply. Computers operate on a binary system they rely on having an on and an off state. Typically, thats done with non-biological components now, Stayton said. This indicates ...Biodiversity increases ecosystems' ability to absorb CO2 and nitrogen
...bute to safeguarding the capacity of ecosystems to capture a larger fraction of additional carbon and nitrogen entering our environment due to industrial processes," says Brookhaven ecologist George Hendrey, who led development of the FACE system and is another coauthor on the current study. The scientists s......r work, published today in Nature, is the first to capture the structure and choreography of an intricately folded ancient biological molecule as it twists and turns to carry out its enzymatic function.By solving the 3-D structure of the hairpin ribozyme, found in a virus that infects tobacco plants, lead au......ming and bursts of speed to elude predators and to capture prey. Scientists have long predicted that tuna, with their highly streamlined body and elevated internal temperatures, are equipped with a "high performance" muscle system. Tuna, researchers suspected, power their swimming by projecting muscle force ...Scientists, ships, aircraft to profile Asian pollution and dust
...ped intake inlets can for the first timeaccurately capture air containing both large and fine particles intheir natural distributions, undisturbed by instrument turbulence. Using a highly precise chemical sensor aboard the C-130, NCAR's HansFriedli and Lawrence Radke will try to untangle some of the mysterie...Computer model predicts outcome of DNA shuffling
...ent may be hard to judge, the program does seem to capture the observed trends," says Maranas. "At minimum, we can predict whether no crossovers, a few crossovers or many crossovers will be generated." DNA shuffling can only be applied to genes where at least 50 to 60 percent of the sequence is identi...Preserving Moroccan forests need not endanger Barbary macaques
...ensity. Accordingly, Moroccan authorities plan to capture and move macaques to habitat without cedars. However, the macaques need cedars: the monkeys flee up these tall trees when attacked by dogs or jackals, and eat young cedar leaves during the winter when snow covers the undergrowth where they usuall...Two studies find supplementation and moderation are keys to lowering homocysteine
...ndard statistical methods may not be able to fully capture the complexity of its data. Dr. Charles Halsted, Editor-in-Chief of The American Journal of Clinical Nutrition, highlights the alcohol-homocysteine paradox in the New Mexico Study, whereby alcohol consumption, known to be cardioprotective, elevates h...Debate over genetically modified food gets an educational home on the web
...ltiple perspectives while designing materials that capture the nature of scientific advance. Founded in 1848, AAAS is the worlds largest federation of scientists with more than 138,000 individual members and 273 affiliated societies. The Association publishes the weekly, peer-reviewed journal Science and adm...Sea grant study indicates potentially harmful human viruses in coastal waters
...'s virus-detection system is somewhat unwieldy. To capture enough viruses to get an accurate portrait of water quality, Jiang must draw 20-liter water samples. "Every thing we are doing is in the research stage, but in theory we think the adenovirus can be used as an indicator for human viral pollution. We n...Friendly microbes control intestinal genes, study finds
...latively new technologiesDNA microarrays and laser capture microdissectionthey examined the bacteriums effect...used another relatively new technique called laser capture microdissection, originally developed to help cancer researchers define the molecular details of tum...Scientists study life of economically important blue crab
...seasons." Beginning next summer, the Wolcotts will capture and fit a handful of adult female blue crabs with ...analyze that information, however, until fishermen capture the fitted crabs and return the devices to the Wolcotts in exchange for a small reward. Specificall...How wild horses were tamed by humans is uncovered by biologists from UCLA, Swedish universities
...to tame and raise horses increased. When you could capture an animal any time you needed one, what would be the point of domesticating it? Scarcity changed the equation when over-exploitation led to the disappearance of horses in the wild. Horses are believed to be among the last large mammal to be domestica...A bizarre new predatory dinosaur unearthed on Madagascar
...lar feeding strategy, with the front teeth used to capture and manipulate animal prey, and the blade-like rear teeth then slicing and tearing the victim into bite-sized chunks. As to the nature of the preferred prey of this little dinosaurian carnivore, potential candidates include insects, fish, lizards, s...New predatory dog-sized dinosaur unearthed on Madagascar
...lar feeding strategy, with the front teeth used to capture and manipulate animal prey, and the blade-like rear teeth then slicing the victim into bite-sized chunks. As to the nature of the preferred prey of this little dinosaurian carnivore, potential candidates include insects, fish, lizards, snakes, and s...... aiming to develop a novel imaging system that can capture snapshots of activity across large swaths of indiv...chniques such as EEG and MRI scans. When trying to capture the activity of nerve cells in the brain, scientists face a daunting task somewhat akin to using fla...DNA arrays decipher genome's master switches
...f in a cell) they represent an overall picture and capture the cells state at a moment in time. One perturbation in the environment or a slight change in the tumor could trigger a cascade of changes, all of which are captured in the snapshot. Such information is invaluable to researchers, but when it comes t......ted in greenhouses simply by using cooled coils to capture it, just like a dehumidifier. There are limits to the dirtiness of the water plants can process, but increase their tolerance to urea, for example, and they could thrive on the colonists' urine. The researchers are also looking to give plants new at...Simple rules predict the outcome of predator-prey struggles
...cal model: If just a few factors are sufficient to capture the essentials of predator-prey battles, many seemingly complex problems in population dynamics can be understood using only a desktop computer. "Ever since ecologists in the 1920s began to model interacting populations, they have been struggling w......orthless, but rather because there is no market to capture and express their value directly." Watersheds may be among the most marketable of all ecosystems, according to several panelists, because they provide essential services such as water purification and flood control. "There's a clear demand for improv...