Tag: "water" at biology news
DuPont developing new protective suits for military, first responders
...process of selective transport -- the diffusion of water
across a selectively permeable membrane -- this membrane allows sweat evaporation and body heat to escape to keep wearers cooler while blocking harmful agents from entering the suit. The new suits for the military are expected to be up to 50 percent...
Two Virginia Tech energy-related inventions win R&D 100 awards
...ne with oxygen to create a environmentally neutral water
byproduct. PEM fuel cells can be integrated int...pounds per square inch, and corrosive agents from water
to sulfides and chlorides. "Sensors retrieved from the wells after 10 months were still functional,"...
Missing genes may help explain why plague bacteria are so deadly
...se fever and appendicitis-like pain if ingested in water
or food. They then compared the Y. pseudotuberculosis genome with the DNA sequences of two Y. pestis strains previously sequenced by the Sanger Institute in Cambridge, England. While the comparison revealed a number of genes in the plague bacterium t...
Cell's gatekeeper for ammonia revealed in unprecedented detail
...other cell membrane channels -- those that conduct water
and charged molecules called ions -- have been reported over the past six years. In 2000, Stroud's group was the first to discover the structure and mechanisms of the water-conducting channels. To determine the structure of an ammonia channel, the UC...
Serotonin metabolites in mollusks suggest pathways for human therapies
...in size. Aplysia californica live in warm, shallow water
off the California coast in areas rich in vegetation where they feed on algae. Pleurobranchaea californica live in the cold, dark depths of the ocean floor, "and each one resembles a wet brown paper bag with the appetite and table manners of a hyena...
Snakehead in your inbox? Welcome to the nonindigenous Aquatic Species Alert System
...cies are members of a species that enter a body of water
outside of their historic native range. An invasive species is a nonindigenous species whose introduction causes, or is likely to cause, harm to the economy, environment, or human health. "Early detection and response are critical in reducing the d...
Story tips from the Department of Energy's Oak Ridge National Laboratory, September 2004
... consist of a gas molecule surrounded by a cage of water
molecules to form an ice-like structure, could in theory also be used to sequester carbon dioxide at the bottom of the ocean. Gas hydrates form at low temperatures and ocean depths of about 500 meters and some scientists see them as an energy source ...
Reducing allergens in the home helps inner-city children with asthma
...d pillow in allergen-impermeable covers; repairing water
leaks; and removing carpet from the bedroom, if possible. Families were also given HEPA (high efficiency particulate air) filters. Cockroach extermination visits were provided in homes where children were sensitive to that allergen. The suggestions w...
Sandia experiments may reduce possibility of future water wars
...hod that uses roughly only one-hundredth the fresh water
customarily needed to grow forage for livestock may leave much more water
available for human consumption, as well as for residential and industrial uses. As a byproduct, it ...
UCLA molecular biologists uproot the tree of life
... today can live at temperatures hot enough to boil water
(160230 degrees Fahrenheit) and can be found in hot sulfur springs and geothermal ocean vents worldwide. "At least 2 billion years ago, ancestors of these two diverse prokaryotic groups fused their genomes to form the first eukaryote, and in the proc...
In a world of distortion, archer fish learn to judge absolute size of aerial prey
... a set of eight disks at various heights above the water
surface from various horizontal distances and selected one of the disks as a shooting target based only on its absolute size. Although nave fish often selected disks that would be too large to be swallowed, all could eventually learn to judge absolut...
Analysis fingers causes of desertification
...actors include innovations such as the adoption of water
pumps, boreholes, and dams. The institutional and policy factors include agricultural growth policies such as land distribution and redistribution. These variables, the analysis reveals, drive proximate causes of desertification such as the expansion...
Select research highlights from current AACR journals
...ab et al. documented that heat treatment with warm water
heightened the response of tumors to high doses of melphalan. The effect was synergistic, but not related to heat-promoted increased uptake of the drug. The studies were conducted at Duke University Medical Center, Durham, N.C. Two inhibitors of...
NASA satellites detect 'glow' of plankton in black waters
...kton blooms where the algae is so concentrated the water
may appear black, some phytoplankton die, sink to ...eria consume the algae and deplete oxygen from the water
that leads to fish kills. Chuanmin Hu and Frank Muller-Karger, oceanographers at the College of Mari...
APS awards more than $140,000 to minority students of physiology
...ysiological functions including energy metabolism, water
homeostasis, gene expression, and muscle contraction. Structural variations in cAMP-dependent kinases give these enzymes the flexibility to regulate multiple cellular processes. This research will help in understanding one mechanism by which cells ...
University of Arizona licenses patent for natural fungicide
... M. Maier, a professor in UA's department of soil, water
and environmental science who is one of the invent...er, the team showed that adding rhamnolipid to the water
in a hydroponic greenhouse system could protect plants from infection by zoosporic plant pathogens. ...
One-hundred-fifty year old lessons of John Snow still relevant today
...ged officials in his city to shut down a well-used water
pump in the heart of the Soho district, a move tha...people. What Snow correctly suspected was that the water
coming from that pump was carrying particles or what he called "special animal poisons" that cause...
New tool predicts how long pollutants will stay in soil
...he rate at which they will migrate toward critical water
resources and supplies. The new approach will help...icals will make their home in the soil rather than water
under any given set of conditions," Nguyen said. "The equation works very well with complicated chem...
Highlights of American Chemical Society national meeting in Philadelphia, Aug. 22-26
... fate, treatment and environmental effects in both water
and soil. ( ENVR 183-189 , Wednesday, Aug. 25, 1:30 p.m.-4:20 p.m., followed by a panel discussion at 4:25 p.m., Loews, Commonwealth B; ENVR 268-274 , Wednesday, Aug. 25, 6:00 p.m.-8:00 p.m., Pennsylvania Convention Center, Hall D, Poster session; ...
Study in Science reveals recreational fishing takes big bite of ocean catch
...NMFS stock assessments for many species. For deep water
species, this number is much higher. In addition,...ll have fish in the future is to leave more in the water
now." "This study is a rigorous compilation and analysis of data about recreational fishing that i...
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