Scientists discover new candidate drugs for treating HIV infection
...ays Dr. Kim. Today's report is the culmination of decades long research into the structure ofthe HIV coat protein, called gp41. This protein plays a key role in allowingthe virus to fuse with cells. Scientists have long targeted gp41, hoping that adrug aimed at this protein could nip HIV infection in the ...Counting elephants by monitoring sounds
... Another survey planner, Richard Barnes, spent decades in Ghana makingsystematic counts of elephant dung piles to chronicle the animals' presence andabundance, and he believes that now is the time to attempt acoustic monitoring. "If we had some way of knowing when the elephants are moving up and down the...Threats to health reduced with Bt corn hybrids
...orn hybrids (Bt corn) represents theculmination of decades of research. This innovative technology has a distincthealth benefit of discouraging the build up of mycotoxins in corn, potentiallydangerous human and animal toxins produced by fungi that cause plant disease. Mycotoxin build up is directly related t......n Miami, Fla. Scientists have known for nearly two decades that there are structural andneurobiological differences between the brains of males and females. The UMassstudy indicates that during pregnancy, the maternal hormone progesterone mayplay an important role in creating those differences. It was previo......ide-effects, such as the birth defects found three decades ago with the drugthalidomide. Many pollutants are also chiral, including some pesticides, plasticizersand polychlorinated biphenyls--chemicals once used as electrical insulators andwhich are now pervasive in the environment. The problem, acco...Global warming threatens state's quality of life
...mes warmer and wetter due to global warming in the decades ahead, as many experts predict, then the state could face a future fraught with water shortages, wildfires and adverse affects on its habitat, economy and quality of life as soon as 2030. That is the prediction of a study released today by the Ecolo......ission ratio distortion has been known for several decades and has been studied extensively by several generations of mouse geneticists. Genetic analyses had shown that the chromosome carrying Tcr is transmitted at high ratio when several mutant distorter loci are present, but at low ratio when distorter...Substance used to treat complications from diabetes also proves to work as antioxidant
DALLAS - November 12, 1999 - A substance used for decades in Europe to treat diabetic neuropathy, or nervous-system complications, also functions as an antioxidant in humans, according to researchers at UT Southwestern Medical Center at Dallas. Alpha-lipoic acid, which is produced by the body to aid in ene...Smells may trigger alcohol craving, and relapse, among alcoholics
... complex reward and reinforcement system. Several decades of research on the biological basis of chemical dependency have demonstrated a common underlying set of biochemical mechanisms. Although different substances of abuse seem to act on different parts of the brain's neuronal circuitry, the result is th...New books view storms, the stratosphere, and more
...is has been labeled a "quiet Chernobyl." Just afew decades ago, the Aral Sea was the fourth-largest inland body ofwater in the world. Today, it has fallen to sixth place, and itcontinues to shrink. This multidisciplinary book is the first tocomprehensively describe the slow onset of low-grade but incremental...MGH researchers first to identify genetic malfunction in type 1 diabetes
...But Faustman's work has been controversial because decades of genetic studies suggested that type 1 diabetes was associated with a single abnormality in the portion of the genome responsible for encoding MHC Class II molecules. Her team believes that the actual problems arise with proteins that play key rol...Sodium intake linked to increased risk of heart disease death in overweight persons
... obesity has increased progressively during recent decades among all racial and ethnic groups in the U.S. To reduce the risks of cardiovascular disease, both weight loss and sodium reduction should be recommended. And evidence from a variety of sources indicates that for people who are not overweight, mode...Key progress by Weizmann scientists in the race to unravel ribosomal structure
...d genetic studies. However, throughout nearly four decades of research, these pivotalbiological units have stubbornly "resisted" scientific attempts to reveal their detailed functionaldesign. In order to examine microscopic structures scientists expose crystals of the material in questionto high intensity x...'Frozen pictures' allow far-reaching glimpse into the cells protein factory
...d genetic studies. However, throughout nearly four decades of research, these pivotal biological units have stubbornly "resisted" scientific attempts to reveal their detailed functional design. In order to examine microscopic structures scientists expose crystals of the material in question to high intens...Chemistry to play major role in solving 21st century challenges
...pt just now coming into its own after nearly three decades of fitful progress toward such a notion," writes Reisch. "It is in part a response to environmental activists' objections to corporate manufacturing and business practices dating at least to the 1970s when dioxin spills and use of the defoliant Agent...Moderate alcohol consumption may reduce your chances of a heart attack
...ller. "Thishappens in the fourth, fifth and sixth decades of life. It's not a huge amount, but we don't need tosee a huge increase for it to become a risk factor." Fuller's study suggests that older populationscan enjoy a glass or wine or beer per day while simultaneously diminishing fibrinogen levels in ....... Extremophiles have been known to scientists for decades but often were regarded a laboratory oddity. The discovery of what appears to be nanobacteria (or nanobes, smaller than microbes) in a meteorite from Mars (Alan Hills 84001, or ALH84001) catapulted extremophiles into the spotlight as a model for poss...Rapid size change in introduced fruit fly indicates it is evolving as it invades North America
...sophila subobscura, which was introduced about two decades ago, has already evolved a wing size pattern that mimics that of established populations in Europe In the process, D. subobscura, a black fly less than one-eighth of an inch long, seems to be replacing native fruit flies in the Pacific Northwest. "...Today's Science for America's Tomorrow: the USGS FY 2001 Budget
...mies disrupted -- have skyrocketed in the past few decades as our population has grown and moved into marginal areas that are vulnerable to earthquakes, hurricanes, and other geophysical hazards," Groat stated. "And these costs will continue to rise in the future, unless we change our approach." With an i......oposphere and lowerstratosphere temperatures --two decades of global observations of tropospheric temperature...rements nor the climate'sinherent variability over decades explains fully the temperaturetrend difference, say the authors. In a comprehensive modeling study,t...