Tag: "salt" at biology news
ORNL system eliminates perchlorate, helps scientists trace source
...e quantities of impurities like nitrates and other salt
deposits," Gu said. "Our findings show that the ORNL treatment system provides a tool for the identification and forensics of perchlorate contamination in the environment." ORNL has licensed the resin technology to the Purolite company and th...
'Broken' gene reveals evolution of salt retention and possible ties to hypertension
...one version of a gene that plays a crucial role in salt
retention correlates with distance from the equato...alt, enough to fill three small saltshakers. This salt
is constantly lost through sweat and urine and replaced through the diet. Salt is now "so common, ...
Loyola begins study on blood substitute in trauma patients at the scene of injury
...major advance since the introduction of saline, or salt
water, to replace volume after blood loss, around ...rent standard of care, which is saline solution or salt
water. The study will compare the survival rate of patients receiving the blood substitute to that ...
How the sea urchin grows new spines
... molecules that are dissolved in liquid, sugar and salt
being the most familiar examples, the team of Profs. Lia Addadi and Steve Weiner, of the Institute's Structural Biology Department, found that the sea urchin uses another strategy. The material of the spines is first amassed in a non-crystalline form...
UGA researchers explain recent decline in Georgia's blue crab population
... the effect drought has on the delicate balance of salt
water and fresh water that exists in coastal estua...sh water comes down the state's rivers to mix with salt
water that tides bring in from the Atlantic Ocean. This raises the salt
content in coastal estuarie...
Eelgrass provides a refuge from predators for some fish species
...ommonly found in Narragansett Bay and Rhode Island salt
ponds, were used as predators in each experiment after appropriate acclimation in each habitat type. Prey fish were provided in equally weighted rations and included silversides, tautog, cunner, and menhaden, all species found in local eelgrass meado...
Scientists name world's whiffiest cheese
...chart." Cheeses whose rinds are washed (in a salt
water solution, beer or brandy) were rated smelliest. Tops was Vieux Boulogne followed by Pont l'Evque both washed rind cheeses, produced from the milk of cows raised on the lush, coastal pastures of Normandy. Camembert de Normandie, the most...
Birds, butterflies, bacteria same law of biology appears to apply
...cteria sampled across a half-acre in a New England salt
marsh. The studies span different microbial tax...orming these functions differently. For example, a salt
marsh in Rhode Island may behave differently in terms of how it buffers Narragansett Bay from nitrog...
Sinking coastlines may precede large subduction zone quakes
...al Society of America Bulletin. The team surveyed salt
marshes along the Pacific coast from Alaska to nor...lightly the saltiness of the march, either through salt
spray or intrusion of salt
water at high tide, and shifts the species of foraminifera living there. ...
Arid Australian interior linked to landscape burning by ancient humans
...onsoon rains about 60,000 years ago, is now a huge salt
flat that is occasionally covered by a thin layer of salty water. The earliest human colonizers are believed to have arrived in Australia by sea from Indonesia about 50,000 years ago, using fire as a tool to hunt, clear paths, signal each other and ...
Spectroscopy for the real world
...ively charged ions accumulating on the surfaces of salt
solutions. Their work paves the way for a better understanding of the role played by tiny airborne salt
particles, emitted into the air by crashing waves and sea spray, in a slew of atmospheric and enviro...
Physicists discover temperature key to avalanche movement
...Everything from powdery snow to desert sands, from salt
to corn flakes are granular materials. Physicists have known for many years that granular materials have many perplexing properties that make them behave at times liquid solids, liquids, and even gases. This new research reveals for the first time ho...
Transgenic plants remove more selenium from polluted soil than wild plants, new tests show
...bic meters of sediment contaminated with selenium, salt
and boron remain in the San Luis Drain, a concrete-lined canal originally intended to channel irrigation wastewater from Central Valley farms to the Sacramento River Delta near Antioch. Selenium is considered an essential trace mineral for both human...
Self-organization and vegetation collapse in salt marsh ecosystems
...accumulation of sediment. Observations from Dutch salt
marshes confirm the model predictions that at first, plant-sediment feedback buffers the salt
marsh from the strong physical gradient that characterizes the marine-terrestrial boundary, and impr...
Bayou blues: Working to save the US from the worst potential oil, gas and fishing crisis
...sters and account for over 40 percent of the total salt
marshlands in the United States. "Wetlands act as a storm buffer for hurricanes and other large storms," said Dr. Denise Reed, a professor of Geology and Geophysics at the University of New Orleans. "With the rapidly depleting wetlands, people that ...
Rats infected as newborns grew up vulnerable to memory problems during an immune challenge
... with the common intestinal bacteria E. coli, with salt
water, or with nothing. In rats, Day 4 is like th... less often than the rats who'd been injected with salt
water as newborns. In other words, under immune stress, the early-infected rats learned to fear the...
Family trees of ancient bacteria reveal evolutionary moves
... exist in brackish water environments, then higher salt
ones, marine and hyper saline (salt crust) environments. Cyanobacteria are organisms that gave rise to chloroplasts, the oxygen factory in plant cells. A half billion years ago Cyanobacteria predated more complex organisms like multi-cellular plant...
Novel 'canary on a chip' sensor measures tiny changes in cell volume; Provides assay results
...lectrical insulators, she noted. "When immersed in salt
water, which conducts current, the cells displace some of the water and reduce the electrical current. If cells swell, as commonly would happen in the presence of a toxin, the resistance would increase and the current would become smaller, indicating...
Genetic switches help fish adjust to fresh and salty water
...to handle the stress of changing concentrations of salt
as they swim through different waters. Not many f...ter and freshwater. To maintain the right internal salt
level, their gills must pump up salt
from freshwater but excrete it in the ocean. "Fish that can sur...
Scientists find both damage and promise for renewal in devastated Iraqi marshlands
...ell-vegetated, while others remain baked mudflats, salt
pans or nonproductive scrublands. Satellite images from 1973, 2000 and 2004 also document the dramatic changes in the marshes. The researchers' analyses of soil and water samples revealed excessive buildups of natural salts in some drained areas, es...
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