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Drain in Biological News

Urban myth disproved: Fingerprints do not improve grip friction

... our skin to stretch and deform more easily, protecting it from damage; or they may allow water trapped between our finger pads and the surface to drain away and improve surface contact in wet conditions. Other researchers have suggested that the ridges could increase our fingerpads' touch ....

Web-based program designs more efficient farm terrace layouts

... techniques can significantly cut the amount of soil lost each year. "The program will help determine the best locations to collect and drain water, tell users how far apart channels and berms (the shelves that form) should be and possibly provide specific heights for the berms," Thompson ...

Simulating pharmaceutical and personal care product transport

... of the Journal of Environmental Quality . Results showed that the MACRO model could not reproduce the measured rhodamine WT concentrations in drain discharge. The updated version resulted in better fits to measured data for both PPCP and rhodamine WT concentrations. However, it was not possible ...

River delta areas can provide clue to environmental changes, Texas A&M prof says

... areas tell about the history of the region from how the land was used or not used through time, the authors say. The world's largest 25 rivers drain about one-half of the Earth's surface and transport 50 percent of the fresh water and 40 percent of particulate materials into the ocean, they ...

River delta areas can provide clue to environmental changes, Texas A&M prof says

... areas tell about the history of the region from how the land was used or not used through time, the authors say. The world's largest 25 rivers drain about one-half of the Earth's surface and transport 50 percent of the fresh water and 40 percent of particulate materials into the ocean, they ...

Cheap and efficient white light LEDs new design described in AIP's Journal of Applied Physics

... electricity consumed worldwide is used to light homes, businesses, and other private and public spaces. Though this consumption represents a large drain on resources, it also presents a tremendous opportunity for savings. Improving the efficiency of commercially available light bulbs -- even a little ...

Shades of 1918? New study compares avian flu with a notorious killer from the past

... cells whose job it is to phagocytize protein components from the virus and present these to T cells, either locally or at the lymph nodes that drain the lungs. Normally, through this process, specific antibodies are then produced to combat the viral infection. Tissue sampling for the H5N1 found a ...

Sea bed provides information about present climatic change

... the University of Granada ( Andalusian Institute of Earth Sciences , CEAMA and Department of Mineralogy and Petrology ). "Oceans may act as a drain of carbon, in the way of inorganic carbonates or as organic matter settled in sediments", says Gallego Torres, who did research, among other ...

What is really happening to the Greenland icecap?

... Svalbard explained. "A major challenge is to determine what fraction of melt water really runs off, because in many places the melt water will just drain into the cold snow and refreeze," said Bggild. One way to determine how much water is running off is to measure not just the area of the ...

American Chemical Society Weekly PressPac Oct. 15, 2008

... Technology Haifa, Israel Phone: 972-4-2836 Email: meeyal@tx.tehnion.ac.il ARTICLE #3 FOR IMMEDIATE RELEASE Alternative fuels may drain dwindling water supplies Environmental Science & Technology As the search for new fuels intensifies, researchers in Texas report that switching ...

Waterborne disease risk upped in Great Lakes

... is the growing concentration of livestock operations where heavy rainfall can wash large amounts of animal waste into the rivers and streams that drain into the Great Lakes, the world's greatest concentration of fresh surface water. "It's the perfect storm," notes Patz. "Deteriorating urban water ...

New method identifies meth hot spots

... at supermarkets and hardware stores. When these ingredients are mixed, they generate a large amount of chemical waste. It's typically dumped down the drain but may be stored, buried or dumped elsewhere. ...

Silent streams? Escalating endangerment for North American freshwater fish

... notable numbers of troubled fish include the Southeastern United States, the mid-Pacific coast, the lower Rio Grande and basins in Mexico that do not drain to the sea. Hotspots of regional biodiversity and greatest levels of endangerment are the Tennessee (58 fishes), Mobile (57), and the ...

Prominent German biologist wins EMBO Communication Award

... articles in his weekly column for the largest German business newspaper Handelsblatt, where he tackles current dilemmas such as the brain drain in German research and industry, the policy of science funding or the problems of the European university systems. He also specifically addresses ...

Antimicrobial sutures reduce infections in brain shunt surgery, study finds

... BUFFALO, N.Y. -- Children born with hydrocephalus, or "water on the brain" must have shunts implanted to drain the fluid away from the brain to reduce harmful pressure. While shunts do their job well, the rate of shunt infection in children is very high ...

Scientists set out to measure how we perceive naturalness

... Natural products are highly valued by consumers yet their properties have been difficult to reproduce fully in synthetic materials, placing a drain on our limited natural resources. Until now ... Scientists at the National Physical Laboratory (NPL) are working towards producing the world's ...

Fungi the cause of many outbreaks of disease but mostly ignored

... valuable time. But fungi are more than just a medical problem: as the cause of more than half of all plant diseases, fungi are also an expensive drain on agriculture. The economic repercussions of managing fungal pathogens on crops the money and effort spent, the numerous pesticide applications, ...

June GEOSPHERE media highlights

... and provide background levels that are needed to predict the effects human activities, such as urbanization and the disposal of wastes and irrigation drain returns, may have on the river. Revisiting silicate authigenesis in the PliocenePleistocene Lake Tecopa beds, southeastern California: ...

American Chemical Society's Weekly PressPac -- April 16, 2008

... consumption and greenhouse gas emissions. In addition, newly discovered uranium deposits may be more difficult to extract in the future a further drain on economic and environmental resources. The extent of economically recoverable uranium, although somewhat uncertain, is clearly linked to ...

Experts prove the geochemical origin of part of the CO2 emissions in semiarid climates

... estimate the annual carbon balance. The carbon balance of this type of ecosystem has been checked for the first time, revealing that it acts as a CO2 drain which assimilates approximately 25 g C m-2 a year (between 10 and 20 times lower than arable land and tree ecosystems respectively). Extreme ...

Dental chair a possible source of neurotoxic mercury waste

... comes from coal-fired electric power plants, researchers at the University of Illinois at Chicago and at Urbana-Champaign say mercury entering drain water from dental clinics and offices is also a source. "We found the highest levels of methyl mercury ever reported in any environmental water ...

Streams natural filters, if not overloaded

... Blacksburg, Va. Streams are natural filters that help remove and transform pollutants that drain from surrounding watersheds, including excess nitrogen from human activities. Scientists know this as a result of many hours of getting their hands ...

Streams remove significant amounts of nitrogen, preventing downstream 'dead zones'

... from the watershed. The study, which undertook a huge field campaign to investigate nitrogen uptake and denitrification in 72 streams that drain watersheds of varying land-use types in the U.S. and Puerto Rico, is the first continental-scale assessment of total denitrification in small ....

Exploration of lake hidden beneath Antarctica's ice sheet begins

... for hundreds of thousands of years. Radar measurements made previously from aircraft surveys suggest that the lake is connected to others that could drain ice from the West Antarctic Ice sheet to the ocean and contribute to sea-level rise. Professor Siegert is already planning the lakes future ...

New map outlines risk of zebra mussel invasion

... had classified as high-risk based on calcium levels. Some sightings have occurred in low-risk areas, but these usually were in rivers that drain high-calcium regions. Ancient seabeds are high in calcium, the researchers say, while basaltic rock, like that found along much of the West Coast, ...

Massive Canadian oilfield could be exploited using new UK system

... into the oil deposit down a vertical well and is ignited. The heat generated in the reservoir reduces the viscosity of the heavy oil, allowing it to drain into a second, horizontal well from where it rises to the surface. THAI™ is very efficient, recovering about 70 to 80 per cent of the oil, ...

NIH hosts event to launch Council of Science Editors' global theme issue

... childbirth safety, HIV/AIDS, malaria treatment, food insufficiency and sexual behavior, interventions to improve child survival, physician brain drain from the developing world, and influenza's impact on children. The symposium is being webcast live and archived for future viewing: ...

Improved e-jet printing provides higher resolution and more versatility

... by e-jet printing, thin-film transistors that use aligned arrays of single-walled carbon nanotubes as the semiconductor and e-jet-printed source and drain electrodes were printed on flexible plastic substrates. The transistors were fully operational, with properties comparable to similar devices ...

JCI table of contents: Aug. 16, 2007

... as plasmacytoid dendritic cells (pDCs) that produce the enzyme indoleamine 2,3-dioxygenase (IDO) and that are isolated from the lymph nodes that drain the site of the tumor. Now, researchers from the Medical College of Georgia, Augusta, have identified how these mouse IDO-expressing pDCs induce ...

Transgenic plants remove more selenium from polluted soil than wild plants, new tests show

... 1980s when biologists discovered that irrigation drain water held at the Kesterson Reservoir in the San ... say cleaning up the sediment in the San Luis drain could cost millions of dollars using conventional ... contained contaminated sediment from the San Luis drain and two that contained clean soil. One line of ...

Migration alert -- How tumor cells home in on the lymphatic system

... to sense the molecule, they will migrate towards the vessel. Swartz’s group showed that tumor cells secrete this same molecule. Since lymphatics drain fluid, there will always be slow fluid flow going away from the tumor into the lymphatic vessel. This slow flow biases the concentration distribution ...

3-D ultrasound scanner provides in-depth view of the brain

... member Srinivasan Mukundan of Duke Medical Center directed a needle into a particular region of the animal's brain, as is required in surgeries to drain cerebrospinal fluid and relieve pressure on the brain. In a second animal, the researchers made use of dyes to enhance ultrasound images of blood ...

An ancient bathtub ring of mammoth fossils

... Wallula Gap. But Wallula Gap was too narrow to handle all the massive flow; the water would back up, creating temporary Lake Lewis, then slowly drain through to the Columbia River Gorge—all in a matter of days. Preliminary results place most mammoth finds in the Lake Lewis area at elevations ...

Cornell lab confirms deadly fish virus spreading to new species

... were collected unless they have been tested. In Wisconsin, new emergency rules prohibit anglers and boaters from moving live fish and require them to drain their boats and live wells before leaving Wisconsin’s Great Lakes waters, the Mississippi River and those tributaries up to the first impassable ...

Shedding new light on proteorhodopsin

... said. "Think of it like a capacitor. If a capacitor is already fully charged and you connect a battery to it nothing happens. However, if you drain the capacitor and then connect a battery, a current will flow." To observe proteorhodopsin in action and measure its effects, Liphardt and his ...

Hopkins scientists link immune response to 'ghost' parasites and severely congested sinuses

... Slender surgical instruments placed alongside the endoscope allow surgeons to cut away inflamed tissue and polyps, clearing a path for the sinuses to drain normally. Lane says that if left untreated, polyps can lead to severe blockage and recurring infections. All patients were monitored for a ...

HIV exploits competition among T-cells

... up simultaneous, independent competition against each of the multiple strains that will evolve by injecting each strain simultaneously so that they drain to different lymph nodes. In this case, no single T cell is chosen as a winner. Instead, a separate winner for each strain is picked in each affected ...

Stem cell activity deciphered in the aging brain

... -- the equivalent of 50 years in humans. But scientists did not know what causes this decline. The common assumption had been that the brain drain was due to a decreasing supply of neural stem cells in the aging hippocampus, said lead study investigator Bharathi Hattiangady, Ph.D., research ...

Light-sensitive photoswitches could restore sight to those with macular degeneration

... potassium channel, which is a valve found in nerve cells. When attached, one end of the compound sticks in the channel pore and blocks it like a drain plug. When hit with UV light, the molecule kinks and pulls the plug, allowing ions to flow through the channel and activate the nerve cell. Green ...
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