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Tag: "sources" at biology news

Magnetism and mimicry of nature hold hope for better medicine, environmental safety

...osis of medical conditions and in testing of water sources for environmental hazards, Garcia said. At ASU, Garcia is among scientists and engineers developing microfluidic and test-surface techniques. The team includes Mark Hayes and Devens Gust, both professors of chemistry and biochemistry, and Tom Picra...

NHGRI announces latest sequencing targets

... known as dermatophytes, which are the most common sources of human fungal disease, will also have their genomes sequenced. Dermatophyte fungi are highly communicable and infect millions of people worldwide leading to costs of approximately $400 million a year for treatment alone. The dermatophytes to be seq...

New GI technologies improve internal organ visualization

... were considered moderately effective in detecting sources of intestinal bleeding. Efficacy rates for DBE an...th procedures offer value to patients with unknown sources of intestinal bleeding or other small bowel problems, and should be used to help evaluate a patient'...

Pollution threatens coral health by preventing lesions from healing, UCF study shows

...will not mend when the colonies are near pollution sources on land that release industrial chemicals, fuel oi...ssue for analysis. Coral growing near land-based sources of pollution were found to be stressed by chemical contaminants, including elevated levels of fungic...

Light guides flight of migratory birds

Songbirds use multiple sources of directional cues to guide their seasonal migrat...question of how migratory birds integrate multiple sources of directional information into a coherent navigational system. Last autumn, Rachel Muheim, a post...

Ultra low-dose estrogen shown safe for post-menopausal women

...ogen ?a mixture of estrogen from several different sources ?in pill form. In contrast, the women studied by Yaffe and her associates received a daily dose of estradiol ?pure human estrogen ?that was over 44 times smaller and delivered through a skin patch. "The different between a patch and a pill is sign...

One therapeutic dose of radiation causes 30 percent spongy bone loss in mice

... for bone loss from therapeutic and space-relevant sources of radiation," by Sarah A. Hamilton, Neil D. Travi... for bone loss from therapeutic and space-relevant sources of radiation," by S.A. Hamilton, N.D. Travis, J.S. Willey and T.A. Bateman, Department of Bioenginee...

Metal homeostasis research in plants will lead to nutrient-rich food and higher yielding crops

...trients. Therefore, plants engineered to be better sources of essential elements would offer humans improved nutrition. For example, over three billion people worldwide suffer from Iron and/or Zinc deficiencies. Food consumption studies suggest that doubling the Iron in rice can increase the Iron intake of t...

Snakes' virtual glasses, leopard spots and all-optical transistors

..., studies have shown that snakes can localize heat sources to a surprisingly accurate resolution of five degrees (roughly the angular width of "Snakes on a Plane" costar Rachel Blanchard at three meters). Physicists at the Technische Universität München believe the solution to the paradox could be a networ...

Funding and bureaucracy, not access to journals, are chief obstacles to scientific productivity

...small changes in work practices and addressing the sources for productivity bottlenecks, we can ensure the future of scientific and economic progress." This study was conducted by CIBER in 2005. It utilized one-to-one interviews to find out what researchers thought were the main issues affecting their produ...

Scientific issues associated with carbon-neutral energy sources such as cellulosic ethanol

...] was correct and that we must develop alternative sources of energy." The earth receives approximately 4,0...t in returning to the use of plants as widely used sources of renewable energy . "However, because of competing uses for land, a central challenge for 21s...

Methane-belching bugs inspire a new theory of the origin of life on Earth

...ed thermodynamics." "The problem of early energy sources has largely been ignored by the classical origin-o...ecules arose first, driven by nonbiological energy sources like lightning, and led eventually to primitive life forms. One difficulty with this theory is due t...

Biofuels researcher searches for new sources

...nited States comes from corn grain. However, other sources of ethanol are needed, because even if the entire ...s fuel needs. So researchers are looking for new sources for ethanol. Since the jury is still out on what combination of sources will be best to replace petr...

Pure novelty spurs the brain

...ion to pure novelty itself from the other possible sources of brain activation, such as emotional arousal. In a second set of oddball experiments, the researchers sought to determine whether the SN/VTA encodes the magnitude of novelty. In those experiments, the researchers measured activation of the region...

All the eggs in one basket

... by people. Using trade records from 163 historic sources in four time periods in 20 Caribbean regions, McClenachan and colleagues mapped the historic nesting areas of green and hawksbill turtles, and used density descriptions and harvest data to categorize "major" and "minor" nesting sites. Historically...

Pollutant haze heats the Arctic

... from fossil fuels burned by automobiles and other sources in cities. The Arctic haze, noted by explorers more than 200 years ago, resembles that seen during winter inversions in the Salt Lake City area. Both areas are desert-like, and pollution is trapped when warmer air aloft holds down cold air at the g...

Bacteria have their own immune system protecting against outside DNA

...yet still take in genetic information from diverse sources that makes them more virulent. "By harnessing foreign DNA, bacteria that cause typhoid, dysentery, cholera and plague have evolved from harmless organisms into feared pathogens," explained Dr. William Navarre, a senior fellow at the UW and primary a...

New method confirms importance of fungi in Arctic nitrogen cycle

...the range to plants tapping into several different sources of nitrogen in the soil," says John Hobbie. "Our study indicates that the differences can be attributed mainly to the presence or absence of symbiotic mycorrhizal fungi." The researcher's new technique is shedding light not only on the nitrogen cycl...

Race to halt global amphibian crisis boosted by rediscovery of endangered Colombian frogs

...owns that depend on two watersheds that have their sources at the site ...

Stem cell expansion

...ells could accelerate the engraftment of HSCs from sources that contain limited numbers of stem cells, such as cord blood. This was a proof-of-principle study that used small numbers of monkeys. Given the encouraging results, additional experiments are now planned to further test whether HOXB4 can eventually...

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