Nation on the verge of 'new era in modern river management'
... journey up the untamed Missouri River, the nation finds itself on the verge of a new era in modern river management, one in which proponents of environmental protection and ecosystem restoration stand on equal footing with those of the hydropower, barge and boating industries. Lowry explores the dynamics ...OHSU researcher publishes first measurements of 'free-base' nicotine in cigarette smoke
...on Health & Science University. In fact, the study finds that some commercial cigarette brands contain 10 to 20 times higher percentages of nicotine in the so-called "free-base" form -- the form thought to be most addictive -- than believed up to now. The study, published today in the online edition of the...Physics tip sheet #36 - July 30, 2003
...r of consumers at the online auction site eBay and finds that the total number of bids placed by a consumer follows a power law distribution, as does the number of items individuals look at. This also implies that a few powerful and active individuals exert a strong influence on the final prices of items. ...Earthworm invasion will change forests
...e (Carex pensylvanica) had proliferated. The sedge finds it difficult to grow in leaf litter, but when earthworms have eaten away the litter, the sedge thrives. "The sedge can become overabundant and hard to get rid of," said Frelich. "We think it likely that after earthworms become established, the new c...Discovery may help in war against fire ants
...short-lived male Strepsitera emerges from the ant, finds and mates with a female. She develops up to 800,000 eggs and lays live young, which emerge from the female to start the cycle all over again. The research gets to a fundamental problem, Johnston said. "How does a parasite attack whether it is you o...Small subset of cells has big role in controlling immunity, study finds
...vaders, such as a virus or cancer, then show their finds to the T-cells and tell them how to respond, says Dr. Andrew L. Mellor, molecular geneticist and immunologist and director of the MCG Immunotherapy Center. Work published in the Aug. 15 issue of The Journal of Immunology by Dr. Mellor and his colleag...Neurons involved in drug addiction relapse identified
...w strategies for treating drug addiction.The study finds an increase in neuronal activity that persists after the behavioral response of seeking the drug is absent, says George Koob, PhD, an addiction researcher at the Scripps Research Institute. This suggests the existence of a neuroadaptation that may m...Poll: NY residents split on biotechnology in food and agriculture
...n the use of biotechnology in food and agriculture finds the public almost evenly split between those who oppose its use, those who favor it and those who are undecided. The findings were among the results of a special-topics survey on biotechnology as part of the 2003 Empire State Poll, an ongoing poll o...Natural fat compound may be basis for new class of drugs targeting obesity
...A is manufactured in the small intestine, where it finds nerve endings that carry its hunger-curbing message to the brain. The Piomelli team found that OEA compounds bind with a member of the peroxisome proliferatory-activated receptor (PPAR) family. OEA specifically activates the PPAR-alpha receptor, whic...As autumn approaches, this chickadee's brain begins to expand
...ens inside the tiny songbird's brain that Saldanha finds amazing.In the fall, as the chickadee is gathering and storing seeds, Saldanha says, its hippocampus, the part of the brain responsible for spatial organization and memory in many vertebrates, expands in volume by approximately 30 percent by adding n...Potent toxin reveals new antibiotic resistance mechanism
...that intercepts the misdirected enediyne before it finds and destroys the organism's DNA. "Instead of cleaving DNA, the enediyne cleaves the protein and thereby inactivates itself," says Thorson. "By detonating its 'warhead' to cleave the protein instead of the DNA, the cell is preserved. It's somewhat ine...Ocean plant life slows down and absorbs less carbon
...NASA GSFC researcher and lead author of the study, finds that the oceans' net primary productivity (NPP) has declined more than 6 percent globally over the last two decades, possibly as a result of climatic changes. NPP is the rate at which plant cells take in CO2 during photosynthesis from sunlight, using...SPR Annual Meeting features newsworthy discoveries
... and may, in fact have hyperaroused brains. These finds suggest that not all case of ADHD are the same and perhaps ought to be treated differently. Improved detection of magnetic fetal brain responses by combination of physiological and anatomical measurements -- Hubert Preissl, Christoph Braun, Hari Es...Researchers involved in renal and cardiovascular function gather for fall conference
...xamination of 141 fraternal Caucasian female twins finds supporting evidence that a GNB-related allele may ...f kidney disease. A new study with an animal model finds that during development of obesity-related diabetes, alterations in COX-2 derived metabolites may co...Earliest European modern humans found
... of Human Evolution ( www.sciencedirect.com ). The finds should shed much-needed light on early modern human biology. "The jawbone is the oldest directly dated modern human fossil," said Trinkaus, the Mary Tileston Hemenway Professor of Anthropology. "Taken together, the material is the first that securely...Obesity, kidney genetics, erectile dysfunction among highlighted research at APS Meeting
...xamination of 141 fraternal Caucasian female twins finds supporting evidence that a GNB-related allele may ...f kidney disease. A new study with an animal model finds that during development of obesity-related diabetes, alterations in COX-2 derived metabolites may co...Two studies find Gulf War veterans have increased risk of ALS
ST. PAUL, MN New research finds that veterans of the 1991 Gulf War have developed ALS (amyotrophic lateral sclerosis) at approximately twice the rate of the general population, according to two studies in the September 23 issue of Neurology, the scientific journal of the American A...Researchers create 'supersized' molecule of DNA
... base pair could change color or intensity when it finds a complementary strand of natural DNA or RNA.'' This fluorescent property could prove useful for medical biopsies, he said, adding: ''You need fast and accurate ways of genetically typing cells, and I think color is an interesting way of doing that. ...Research sheds new light on evolution
...Nature . "The question is asked, 'If a population finds itself in some maladaptive state, due perhaps to a change in climate, how will it adapt?'" said Douglas Schemske, MSU Hannah Professor of Plant Biology and a member of the research team. "The evidence that has come to light recently both in plants a...Smallpox in Europe selected for genetic mutation that confers resistance to HIV infection
...death from smallpox. "Our population genetic model finds that genetic selection from plague wouldn't have been sufficient to drive the frequency of this genetic mutation to its current level," said Alison P. Galvani, a Miller Postdoctoral Fellow at UC Berkeley. "It was sufficient for smallpox." Bubonic pla...