New biosensor rapidly detects deadly foodborne pathogen
... Many tests currently in use require a high concentration of pathogen cells - typically from 1 million to 10.... The enrichment process increases the concentration of cells present, making it possible for today's sensors to detect their presence, but it can take a...Researchers find chemosignal that encourages women's sexual desire
...h potassium phosphate, a substance that mimics the concentration of the sweat and breast milk. "Because preconceived ideas about pheromones could potentially influence their responses, study participants were blind to the hypotheses and the source of the compounds," Spencer said. "The study was presented to...World's top theoretical physicists converge to consider 'future of physics'
...lk to one of the office's inhabitants disturbs the concentration of the other. Collaborators need therefore to leave the office to talk, and they have to have somewhere to go where their conversation won't bother office inhabitants; hence the liberal use of spaces for interaction, both inside and out, in the newl...Experimental drug prevents vaginal simian HIV transmission in monkeys Science study says
...ose consisted of 4 milliliters of a one-millimolar concentration of the protein. The second-highest concentration (330 micromolar) protected four out of five monkeys treated. The third-strongest concentration (100 ...Using fruitflies to examine alcohol tolerance
...ing dose of alcohol (rapid tolerance), or to a low concentration of alcohol continuously during a 48-hour period (chronic tolerance). Tolerance was measured based on increased speed of recovery from subsequent intoxication relative to alcohol-nave controls, and also by a second assay measuring delayed onset of in...Bloodroot alkaloid aids in exterminating sun-damaged skin cells in culture
...ng apoptosis. By pre-treating the cells with a low concentration (50 nM) of sanguinarine, Ahmad and his associates observed that the natural plant-based anti-oxidant agent induced a 54-72 percent decrease in cell viability after UVB. The rate of apoptosis increased an additional 49-66 percent after sanguinarine tr...Munching microbes could cleanse arsenic-contaminated groundwater
...ormly distributed." Surprisingly, however, arsenic concentration varied strongly from well to well, Bethke said. "...fall below detection limits in a nearby well." The concentration of arsenic varied inversely with the concentration of sulfate, the researchers found. Methane conce...Research confirms that vCJD prions can be removed from blood
...ous units of human vCJD from transgenic mice. The concentration of infectious vCJD prions in the red cell concentrates was measured before and after filtration with the Pall Leukotrap Prion Affinity Reduction Filter using a Western blot assay. The research with infectious scrapie prions was a follow-up study th...Researchers discover transport molecule that allows boron into cells
...transport boron across the membrane to control its concentration within the cell. The discovery of NaBC1 may help ...ntists understand how cells control internal boron concentration and the role of boron in a wide range of cellular processes, such as cell growth and bone mineraliza...Drug may hinder recovery from heart attacks
... acidify the cell. Our cells carefully control the concentration and movement of HCO3- across the plasma membrane by regulation of bicarbonate transport proteins (BT) that can rapidly catalyse the transmembrane movement of HCO3-. The focus of Dr. Casey's laboratory's research is to understand the processes of tran...Investigating the Columbia River and Estuary: A primary focus of research
...clams has provided important information about the concentration and distribution of trace metals and radionuclides in the Hanford Reach of the Columbia River. Uptake and depuration of 90Sr/90Y by Columbia River periphyton communities Robert Fellows, Pacific Northwest National Laboratory, reports how periphy...New gene therapy promising for treating Fabry disease
...pecial relevance in Canada. There is a significant concentration of Fabry patients in Nova Scotia, all descended from an immigrant who arrived there in the late 1600s. Presently, the only corrective treatment option for people with Fabry disease is a very costly course of treatment requiring weekly or bi-weekly r...2004 IUCN Red List of Threatened Species reveals 15,589 species at risk of extinction
...ighted by the fact that many countries with a high concentration of threatened species have a low Gross National Income (GNI) per capita (for example, Brazil, Columbia, Cameroon, China, India, Indonesia, Madagascar, and the Philippines) and are unable to implement the required conservation measures without interna...Low-carb diet during pregnancy improved triglycerides, fat metabolism in offspring
...rb/high-fat mothers had reduced liver triglyceride concentration (less than half that of the pups born to mothers o...e chow until adulthood. Although liver cholesterol concentration and fasting plasma TG, cholesterol and free fatty acid concentrations were not affected in either ma...Citrus shows promise for certain childhood cancer
...ive patients an oral cocktail of limonoids in such concentration as to stop their cancer." Patil said the researchers also will be studying limonoids to find the limits for adding to food. One of the limonoids, glucoside, is tasteless, he noted, so it might become a food additive for its healt...A complex agricultural society in Uruguay's La Plata basin, 4,800-4,200 years ago
... that "this region was a locus of early population concentration in lowland South America."...Read your shampoo's label: Study finds common ingredient stunts developing neurons of rats
...s. They reported that 10-minute exposure at a high concentration roughly 100 times the dose used in their current study was lethal to these cells. To understand what effect chronic exposure would have on immature, developing neurons, the researchers kept cells in a media solution containing low concentrations o...Human gland probably evolved from gills
... which secretes parathyroid hormone if the calcium concentration in the blood falls too low. This hormone then caus...ands. Instead they increase their internal calcium concentration by using their gills to take up calcium from the surrounding water. 'As the tetrapod parathyroid gla...US researchers warn of possible fertility risk to men using laptop computers on their laps
...nt capable of inhibiting spermatogenesis and sperm concentration may be decreased by 40% per 1C increment of median daytime scrotal temperature. "We don't know the exact frequency and time of heat exposure capable of producing reversible or irreversible changes in spermatogenesis. Studies have shown signif......ts. They used projections of ocean warming and CO2 concentration from a CSIRO climate model that accounts for atmosphere-ice and ocean carbon cycles. "Our results show that increases in coral reef calcification associated with ocean warming outweigh decreases associated with increased atmospheric CO2", says...