Human cancer-detection test showing promise in pets, too
...American Journal of Veterinary Research (October), documented that telomerase activity was present in 29 of 31 malignant and just one of 22 benign samples examined over two years. Not finding its activity in the two malignant tumors likely was the result of errors in tissue processing, Kitchell said. The malig...Water, sediments in ice-bound antarctic lakes may harbor unique microorganisms, ecosystems
...l exciting bio-geochemical-physical systems wil be documented during the next decade." Recognizing the scientific and technological challenges and opportunities of such an undertaking, NSF's Office of Polar Programs has established an NSF committee to study the possible scientific exploration of the lakes. Kar...A little larceny comes naturally to Northwestern crows
...re observing the crows. The researchers previously documented some eagle predation on crows, but they did not observe a bald eagle killing a crow during this study. Typically, when an eagle flew over the beach, the crows flew up and mobbed the eagle until it left the area. "If you have a varied environment l...Investigating a 'protective gene' against alcoholism
...ene that codes for the ADH enzyme. ADH2*3 has been documented only in people of African descent and certain Nati...e ADH2*3 allele (a variation of the gene) has been documented to occur only in persons of African descent and certain Native American tribes. A study in the Dece...... fox with extinction. A team of biologists has now documented the remarkable extent to which the introduced pigs have disrupted the island ecosystem. They are reporting their findings in the scientific journal Proceedings of the National Academy of Sciences (the article will be published online on December 18 a...Study shows deoxygenating ballast water can prevent invasive species and ship corrosion
...gh National Estuarine Research Reserve. Wasson has documented more than 55 non-native invertebrates in Elkhorn Slough, California, and became involved in this project because we urgently need practical solutions to stem the tide of aquatic invasions. Previous research has shown that ballast water from the globa...Respiratory activation in patients with obstructive sleep apnea syndrome (OSA)
... test subjects selected or this study had recently documented and untreated sleep apnea. Subjects with other medical problems, such as daytime hypoxemia or cor pulmonale (hypertrophy of the right ventricle resulting from disease of the lungs), were excluded. There were nine men and two women with a mean age of...Nexia and US Army spin the worlds first man-made spider silk performance fibers
...dragline spider silks from these species have been documented to be among the strongest silks reported. The monomer silk proteins from one of these species were spun from an aqueous solution to produce water-insoluble BioSteel fibers. These fibers were tested for a number of mechanical properties and compared ...High CO2 levels hamper nitrate incorporation by plants
...ve since repeated the work using tomatoes and have documented similar results. Bloom added that the study also suggests that plant and tree species in natural ecosystems that depend on nitrate conversion into amino acids in their leaves are likely to be at a competitive disadvantage to those species that are ei...February media highlights - GSA Bulletin
... geologic provinces on Earth. Our expeditions have documented the geologic history of northwest China during the Permian period, a time immediately following an episode of plate collisions and mountain building during the coalescence of the supercontinent Pangea. One of the more intriguing discoveries of our wo......) are not vigorously active on a regular basis. A documented decline in physical activity has been correlated w...th the changes in rates is environmental change. A documented decline in physical activity has been correlated with a sharp rise in television viewing hours. Unf...Compounds rejuvenate rats, may aid humans
...g. In studies of old rats, Hagens laboratory has documented a severe decline of mitochondrial function, a slower metabolic rate and reduced cognitive function. He has shown that the antioxidants that help protect mitochondria, especially glutathione, an intracellular antioxidant, decline severely with age. An...Does a vegan diet have a moral basis?
...n losses of field animals are very high. One study documented that a single operation, mowing alfalfa, caused a 50 percent reduction in the gray-tailed vole population. Mortality rates increase with every pass of the tractor to plow, plant, and harvest. Additions of herbicides and pesticides cause additional ha...Michigan State scientists identify chemical come-on of sea lamprey
...chemicals over long distances. Pheromones are well documented in insects, but less so in fish. Moreover, it was presumed that females were often the chemical temptresses. It identifies the potency of the sea lamprey pheromone and how far one fish can cast its chemical net to lure a female. Sea lampreys migrate...Australian frog is first to make its own chemical weapons
...than getting it from food sources. It is the first documented case of a vertebrate that generates its own poison alkaloids, complex chemicals that are usually associated with plants, the researchers said. Poison frogs release alkaloids from their skin to defend against predators. Until now, the researchers beli...Unique social system found in famous Tsavo lions
...on males. The five resident groups of females they documented had an average of 7.4 adult females per group, lar...one of the worlds best-studied mammals, no one has documented undisturbed groups of seven-to-eight adult females with a single adult male, says Roland Kays, PhD, ...Scientists document water molecule movement across cell walls
CHAMPAIGN, Ill. Scientists have documented a ballet in which dancers cross the stage in a billionth of a second. The stage is a class of proteins found in all living things; the dancers are water molecules. The performance, captured by supercomputer simulation, casts new insight for biomedi...New study finds need for improved nutrition for low-income African American females
...emales with low incomes. Specifically, this study documented dietary deficiencies for folate, iron, calcium, vitamin D, and excesses of dietary fat, cholesterol and overall energy intake. Based on the findings from this study, nutrition education should aim to increase folate, iron, calcium and vitamin D inta...UT Southwestern researchers identify gene responsible for a rare body-fat disorder
...volved in the production of fat. This is the first documented human disorder that disrupts the biochemical pathway of fat synthesis. The study appears in the May issue of Nature Genetics. Now we know why patients with congenital generalized lipodystrophy are unable to synthesize fat in a normal fashion, said Dr...President Bush names 15 to receive National Medal of Science
...Institute of Ecosystem Studies in Millbrook, N.Y., documented for the first time in North America the environmental consequences of the phenomenon known as acid rain. George F. Bass of Texas A&M University is receiving the Medal of Science in behavioral and social sciences for fathering underwater archaeology a...