Tag: "water" at biology news
Studying the chemistry of drugs in wastewater
...t. Scientists around the world often find drugs in water
samples taken from streams and other waterways, but little is known about byproducts of those drugs created during chlorine treatment or time spent in the environment. The topic drew a large audience at the American Chemical Society annual meeting la...
A treatment, not a cure: Calcium silicate neutralizes an acidic stream
..., we are exploring short-term methods of restoring water
quality to sensitive sites." Symptoms of acidifie... however, and can generate extreme fluctuations in water
chemistry. Recognizing the limitations of limestone, Likens and colleagues looked to another materia...
How roots control plant shoots
...o tell the leaves to stop growing, presumably when water
is scarce, soil is too compacted or other conditio...ns are bad. While roots obviously carry food and water
to the leaves, the new findings help show how roots also send chemical signals that control whether ...
Stanford cooling tool may improve performance of athletes, soldiers
...rface of the palm of the hand [by circulating cool water
through a closed system on which the palm of the hand rests], which cools the blood in the hand's vascular heat-exchange structures. Arteries deliver blood directly from the heart to these vascular structures, and veins then carry the blood from thes...
Plants provide model for new shape-changing materials
...ered. These movements are caused by changes in the water
pressure inside the plant and can result in very large changes in shape. The goal of the DARPA project, administered by John Main, is to develop synthetic materials that utilize internal pressure changes to cause large shape changes. The plan calls...
Below the surface: New clues to plant signaling from the roots
... that plant roots, whose primary role is to supply water
and nutrients to the above-ground portions of the plant, may also provide growth signals that regulate shoot growth, but researchers are only beginning to understand the ways in which roots are able to effect this developmental control from afar. Sev...
University of Oregon professor wins 2004 Spiers Medal
...nd for her pioneering research on the structure of water
at surfaces. Richmond is the 2004 recipient of the...try department. "Understanding the structure of water
at surfaces is one of chemistry's great challenges," Bain says. "This is at the core of understandin...
Brain circuit may permit scientists to eavesdrop on memory formation
...ability to learn to navigate a tank full of opaque water
to find a submerged platform. When the researchers tested the rats the day after the electrical lesions were made, they still recalled the platform's location. But they lost that memory four weeks after training. "There were two possible explanations...
Viruses found in untreated city water
...cur in the La Crosse, Wisconsin municipal drinking water
supply prior to its chlorination, according to a s...onmental Microbiology. Although the city's treated water
meets or exceeds state and federal standards for drinking water, researchers and public health offic...
US Agency for International Development awards $34 million to Virginia Tech
... ecosystems, and prevent contamination of food and water
supplies. "The program will be designed around Reg...her, soil, cropping systems, livestock management, water
availability, and the tools for agricultural and natural resource management resulted in better comm...
Report: How 10 top new technologies will help world reach globally-agreed goals by 2015
...e women a way they can prevent HIV-AIDS; where bad water
is made safe again. This report is about the path...ditional vaccines; Reducing pollution and making water
safe to drink through bioremediation the potential exploitation of micro-organisms with remarkable...
Story tips from the Department of Energy's Oak Ridge National Laboratory, October 2004
...ma, a state that recently experienced its own high water
problems associated with Hurricane Ivan. [Contact: Bill Cabage, 865-574-4399; email@example.com ]. BIOLOGY -- Mimicking nature . . . Nanoscale synthetic cell membranes developed at Oak Ridge National Laboratory move researchers one step closer to...
Australian expertise helps resurrect Iraq's ancient marshlands
...e set out to establish the limitations of soil and water
resources to agricultural production in both drain... help the local people interpret signs of soil and water
degradation, and to direct efforts to local projects with the best chance of success. "We have devel...
INEEL uses extremophile bacteria to ease bleaching's environmental cost
...ial wastewater, producing only harmless oxygen and water
as byproducts. Most important, the so-called extre...t living things, break down hydrogen peroxide into water
and oxygen. This protects cells from oxidative stress -- the biological equivalent of rust. But indu...
Anti-cholesterol drug treats Alzheimer's disease in mice
...remember the location of a submerged platform in a water
tank--a standard test of learning and memory. Cholesterol-lowering statins are now being tested as a means of reducing the risk of Alzheimer's, said the researchers, although "It remains to be shown that statins can provide significant cognitive bene...
Amphibians in dramatic decline; Up to 122 extinct since 1980
...ther threats, such as habitat destruction, air and water
pollution and consumer demand are leading causes of amphibian decline. Still, scientists are confident that an immediate commitment of resources and effort could reverse many of the present negative trends. Creating new protected areas, captive b...
Researchers redrawing the Tree of Life
...Caledonia called an Amborella forms the base, with water
lilies coming directly after that. "This indicates a major shift from a shrub of terrestrial habitat to aquatic habitat," Hilu said. "That's a major change in structure and ecology." Hilu had been researching flowering plants throughout his caree...
An old adage about apples finds scientific backing
...rcinogen were subsequently fed a liquid mixture of water
and apple-derived procyanidins. After about six weeks on this diet, these rats were found to have about half the number of precancerous lesions in their colons as their counterparts on a regular diet. Dr. Raul said these experiments revealed ...
Discovery might improve design, effectiveness of anti-cancer drugs
...fly through the vapor phase" -- from which solvent water
is totally absent -- without changing its structur... for seconds, but in the new experiments, a single water
molecule remained undisturbed, which was a surprise since no one ever saw that before. "This suggest...
Mollusk research center will propagate endangered species
...ch center, quarter-acre pond, storage buildings, a water
well, and a two-room lab. "Our researchers produced nearly 50,000 juvenile mussels last year and can produce up to 100,000 juveniles per year depending on the availability of the species," said Neves. While propagation is one of the main objectives o...
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