Everyday Technology Underlies First DNA Computer Logic Gates
...ost commonplace biological laboratory techniques, such as DNA ligation and gel electrophoresis. ...problems that traditional computers cannot solve, such as the famous "traveling salesman" problem. The Rochester team is one of the first to seriously con...Newly Identified Tomato Gene Appears Key To Fruit Softening
...ight be possible to turn off the gene in any fruit such astomatoes, strawberries or bananas, which undergo rapid deterioration, sothat they would soften later during the ripening process and have a longershipping and shelf life," said Rose. He and colleagues are currently testing this possibility in gene...Enzymes Targeted As Key To Understanding Drug Interactions
...am of School of Pharmacy researchers investigating such drug interactions for more than a decade. "There are simple test-tube methods to determine which enzyme metabolizes a new drug," said Levy. "While we are still in the research phase, we are already performing these analyses for the pharmaceutical in...New understanding of crab populations may not bring fishermen's delight
...ways of regulatingtheir numbers by changing things such as natural life expectancy, egg-layingrates and cannibalism, or because of outside forces, such as predators,weather and food. It turns out that both sides may be right. A new paper being publish...Low Iron Levels Cause Weakness In Women Who Are Not Anemic
...h meals to improve absorption from iron-rich foods such as legumes, whole grains and green vegetables. The research was supported, in part, by the U.S. Department of Agriculture....Early Tests Indicate Motor Skills Unharmed In Consumers Of Tainted Fish
...eaters, but after accounting for unrelated factors such as arthritisand medications, the differences dropped below statistical significance.The same tests will be repeated in three years. Meanwhile, the researchersare analzying tests of the subjects' memory, executive functions, and visualand spatial abil...Ozone 'Chat Room' Provides Real-Time Air-Quality Research
...lso may face government-imposed lifestyle changes, such as mandated car-pooling and other travel restricti...easonably large fraction of the ozone occurring in such areas is actually transported in from the outside. So, whatever ozone is added on top is the ozone ...Purdue-Made Soil Benefits The Environment
...n by industrial use. "There are a number of sites, such as coal mines and gravel pits, where land has been depleted," she says. "To reclaim these sites quickly with vegetation requires nutrient-rich topsoil, and we can't afford to take that away from farms. In addition, if this process is effective on a l...Merging Physics And Neuroscience: First Evidence Of Self-Organized Criticality In Brain Networks
...ration raised to aspecific exponent. Adherence to such a power law is the signatureof self-organized crit...has not existed before." In addition to epilepsy, such a diagnostic tool could alsoapply to other brain disorders, including Alzheimer's Disease, slowbrain...Enhancin Protein Attacks Insect Immune System
...tive against vertebrates. Invertebrate species -- such an insects -- do not have highly acidic intestinal contents. The BTI researchers are seeking to genetically engineer the enhancin gene into plants, where it has considerable potential, Granados said....Summer Science: Firefly Babies Advertise Their Bitter Taste, UD Researchers Say
...f an unappetizing or hazardous meal. Brightcolors, such as the orange and black patterns on a monarch butterfly or theyellow stripes on a wasp, are far more typical examples of aposematic display,Tallamy notes. Baby fireflies (Coleoptera: Lampyridae) clearly use light signalsto ward off predators, UD rese...Better Peroxidase Improves Disease Diagnosis
...st a year. Such kits will be very useful in places such as China, Africa and Central America, he says. Vierling, director of the Genetics Laboratory for the ICIA, started experimenting with soybean peroxidase because it is a hot "green" industrial commodity that can be extracted from soybean seed coats. ...Scientists Bridge Gap In Cell Communication
... step in communication between cells that promotes such things as bone formation, limb growth, and the development of other critical tissues, has been found by a team of researchers from the University of Wisconsin-Madison. The discovery, reported today (July 17) in the British scientific journal...Stopping "Cellular Suicide" Could Boost Production In Biotech Labs
...stood, somehuman cells commit suicide. Some cells, such as those that havebeen infected by a virus, kill themselves to preserve the healthof the body as a whole. Other self-destruct simply because theysense that a threat to their survival or merely somethingunfamiliar is lurking nearby. This process, call...Couch Potatoes, Not French Fries, May Be To Blame For Obesity
...ns that consume convenience foods and trendy foods such as jarred peppers or black olives are less likely ...se than groups that consume more traditional foods such as canned goods, frankfurters or pudding. Randy Gretebeck, a registered dietitian and exercise physi......ached to the pesticide, its container, orwrapper," such as a sack of seeds. The EPA said during...it will only reduce U.S. public confidencein GMOs, such as strawberries, corn, and wheat, by implying that fruits,vegetables, and grains contain pesticides....Jefferson Scientists Discover Mechanism Of Viral Link To Disease Commonly Associated With Asbestos
...e involved in the development of other cancers, such as ovarian and breast." Previous studies...lterations of important cell cycle controllers, such as Rb family genes," said Dr. Giordano. "When we studied Rb family genes in mesothelioma, ...Evolutionary Advantage Found For Sex
...y, Zeyladmits. Why go to the trouble of disrupting such precisely constructed geneticcomplexes if you can only transmit half of your genes to your children? Afterall, asexual organisms can pass on all of their genes to subsequent generationsof clones. One other explanation for the evolutionary ben...Second Look Acquits Gene Of Role In Breast Cancer
...on, but since this isthe first time we've observed such an error in a cancer cell's ability todecipher a gene, we're notsure yet if it provides any advantages to the cancer cell." With funding from the Department of Defense, Feinberg and Maxwell Lee,Ph.D.,studied TSG101 in normal and cancerous human ...Coming Extinction Of One Of UK's Most Minuscule Plants Yields Information On Climate Change
...d. It also occurs around the south pole in places such as Tierra del Fuego. Dr Barry Meatyard from the ...lane could become extinct in Britain. The loss of such an insignificant little plant is not likely to cause high drama in the same way that the loss of 'se...