Marsh-dwelling mole gives new meaning to the term 'fast food'
... researchers calculate. Of course, the greater the concentration of small prey, the more this advantage pays off. Not surprisingly, such small-prey animals tend to be abundant in the wetlands and marshes that the star-nose inhabits, Catania says. Specialization for small-prey handling can also explain the mole's u...Drought reduces nitrogen-fixing in legumes
...tion of sacarose synthesis activity, a drop in the concentration of phosphate sugars and organic acids was also observed, indicating a decrease in carbon flow in the nodules, a drop which, in turn, limits the supply of carbon to the bacteroid and the capacity of the bacteroid to fix nitrogen thus affected. Percep...Why do insects stop 'breathing'? To avoid damage from too much oxygen, say researchers
... breathing in order to lower their internal oxygen concentration to physiologically safe levels, and that they then...ve creams flooding the market to combat aging. The concentration of oxygen in the air we breathe is toxic to us. Indeed, fruit flies, which have been studied closely...Assumptions of effects of rising carbon dioxide probed
...heric gas. The group exposed to a slow rise in CO2 concentration showed less of a decline in the number of species per sample a standard ecological measure of biodiversity of the fungi than did the group exposed to the abrupt change, but the difference was not significant. The findings suggest that previous wor...Chemical analysis of mushrooms shows their nutritional benefits
..., immature portabellas had a total oligosaccharide concentration of 5,272 micrograms per gram (ug/g). Also found to have more than 1,000 ug/g were raw, mature portabellas and cooked, immature crimini. None were detected in enokis, maitakes or shiitakes. Most of the total oligosaccharides were in the form of glucoo...Other highlights in the February 16 JNCI
... have been complicated by the need to measure zinc concentration in esophageal tissue directly because the mechanisms by which zinc deficiency increases the risk of esophageal carcinogenesis are thought to occur locally in the target tissue. To determine whether concentrations of zinc and other elements influence ...'Blips' in HIV treatment are not cause for alarm
...mously reducing viremia, which is a measure of the concentration of viral particles in the bloodstream, said Siliciano. "The goal of treatment now is to suppress viremia below fifty copies per milliliter, which is the limit of detection of the best available assays," he said. "It's pretty clear that if viremia is ...Perchlorate found in dairy and breast milk samples from across the country
...ined no detectable levels. The average perchlorate concentration in breast milk was 10.5 micrograms per liter; the dairy milk average was 2.0 micrograms per liter. No definitive national standard exists, although the U.S. Environmental Protection Agency had suggested a limit of 1.0 micrograms per liter in drinking...UT Southwestern researchers see hope for treating blindness in preemies
...onment tricks their bodies into accepting the high concentration of oxygen as normal. When they are healthy enough, preemies can leave their incubators and start breathing normally. Their bodies, however, accustomed to higher oxygen, perceive normal oxygen as too low, and their bodies set off the protective hypox......n the past, blood samples were taken and the serum concentration of the drug was measured and that number was used ...ns of an antibiotic and then determine the minimum concentration that prevents bacterial growth. That number was taken and compared with concentrations of the drug i...Heart Center cardiologist performs rare liver catheter intervention on teen
...e PDV directly into the heart and lungs. The high concentration of ammonia in Sammy's bloodstream was toxic to many organs, including his brain. Ammonia likely contributed to his chronic lung problems, making him so short of breath that it is difficult for him to speak. Justino performed the unusual catheterizati...Finding hidden invaders in a Hawaiian rain forest
..., the native Metrosideros tree typically has a low concentration of nitrogen in its leaves ( .6% to .8%), while the...g Canary Islands tree has relatively high nitrogen concentration (1.5% to 1.8%), because it can acquire nitrogen from the atmosphere. "The high leaf nitrogen associ...Could microbes solve Russia's chemical weapons conundrum?
... By the time the bacteria had stopped growing, the concentration of the PHT derivatives had de-creased by 50-55 percent. When further MEA and EG were added, the overall PHT decrease was 83 percent. In the absence of a carbon source other than PHT, the PHT levels remained constant. When no bacteria were present, t...Insight into natural cholesterol control suggests novel cholesterol-lowering therapy
...ore cholesterol from the bloodstream, lowering its concentration there. However, inhibition of reductase function by statins also limits the availability of regulatory intermediates that govern reductase activity, contributing to a major increase in active reductase that becomes progressively harder to control, ac...UC Davis researchers discover new link between C-reactive protein, and heart disease and stroke
...y to the heart. The good news is that reducing the concentration of C-reactive protein with targeted drugs, such as statins, has been shown to reduce cardiovascular events. Treating other risk factors such as smoking, obesity, high blood pressure and high cholesterol are also shown to reduce the levels of C-reacti...Men and women: The differences are in the genes
... are expressed, that can create a stronger overall concentration of particular genes. Carrel and her co-author, Huntington F. Willard, Institute for Genome Sciences & Policy, Duke University, determined which genes were escaping inactivation and where they were located on the inactive X chromosome. They found that......e position at BCM of being in the largest clinical concentration in the world. We have more samples and examples of human disease right on our doorstep than most other centers. We mean to take that information, leverage and run with it. We hope this community will be the first to benefit from these kinds of advanc...Variation in women's X chromosomes may explain differences among individuals, between sexes
...number of genes that escape inactivation and their concentration in certain portions of the X chromosome has immediate implications for counseling the one in every 650 individuals born with X chromosome abnormalities, Willard said. The expected severity of symptoms associated with the loss or aberration of particu...Energy efficiency: Canadians honoured
...ec - Mechanical vapour compression applied to acid concentration at Nexans; School District No. 38, Richmond, British Columbia - School District No. 38 (Richmond) Energy Management Initiative; Unilever Canada, Rexdale, Ontario - "The Watt Watchers"; and Virescens (Passion for Action) Inc., Surrey, British Colum......r human disease. The result is that we have a high concentration of information and expertise on elasmobranch organisms and are well positioned to support this important initiative." Data from the skate sequencing project will be integrated into MDIBL's Comparative Toxicogenomics Database, an interactive databas...