Tag: "temperatures" at biology news
Hitchhiking molecules could have survived fiery comet collisions with Earth, UC Berkeley experiment shows
...ompounds could survive the high pressures and high temperatures
of a collision, Blank and her colleagues worked for three years to design a steel capsule that would not rupture when hit with a mile-per-second (1.6 kilometer-per-second) bullet fired from an 80-mm bore cannon at the University of Chicago and later ...
Scientists determine how chemistry keeps weird worms "out of hot water" at steaming deep-sea vents
...sides in much hotter water than the tubeworm, with temperatures
fluctuating from 40 90C (104 194F). According to...ction critical for the worms survival. "The higher temperatures
allow for the formation of soluble iron monosulfide, a compound that reduces the toxicity of the hyd...
Saharan dust "cools" climate warming estimates
...atmosphere will lower current estimates of warming temperatures
in those areas." Remer has analyzed Asian dust that reached the Channel Islands off the southern California coast and found similar low levels of absorption. Previous estimates of how much sunlight is absorbed and reflected by desert dust have varied...
"Microbes deep within South African gold mines" subject of NSF lecture
...pheric pressure is double that of the surface, and temperatures
reach some 120 degrees Fahrenheit. Scientists have identified microbial communities in various crustal environments down to 2,800 meters below the surface. Only a very few samples of deep-living microbes in continental (non-oceanic) crust exist, howe...
Genetically modified earth plants will glow from Mars
...nal obstacles. Schuerger said that on Mars, daily temperatures
range from a high of 45 degrees Fahrenheit at noon to a low of minus 170 degrees at night. Also, the planet's moisture content is 0.3 percent, which is extremely low. But Ferl, Schuerger and the rest of the team are taking all bettors. "I have no d...
Researchers pinpoint how tubeworm babies are dispersed to colonize new vent sites
...explains. Tubeworm larvae mustwithstand these cold temperatures
as they are dispersed by the currents, hopefully to a home in warmer water near a vent site. The scientists found that tubeworm larvae do not develop a mouth in the first 34 days of development, so they cant obtain energy from food during this per...
Seabirds still not recovered from Exxon oil spill
...ng the numbers. "For example, average summer water temperatures
have increased in the last 10 years at least three to four degrees above the historical average," says the company. But Irons believes the oil spill is still to blame. "Lingering effects of the spill and natural variability appear to be acting i...
Proteins in African HIV strains interact differently with drugs
...at A and C proteases could remain stable at higher temperatures
than the B protease. Genetic variations in the subtypes of HIV cause amino acid polymorphisms -- differences in the sequence of amino acids that are put together to make up a protein. Polymorphisms can occur both through natural genetic variations an...
New U. of Colorado research may reduce renewable fuel costs
...dopsis thallana. Raised in closed chambers set at temperatures
of roughly 77 degrees Fahrenheit for optimal growth, the plants manufacture significantly large quantities of the cellulase enzyme, which then is harvested from the plants. A number of plants might be viable candidates to produce large amounts of ce...
Rutgers and Philadelphia's NBC television affiliate launch first water forecasting system for visitors to the New Jersey shore
...oeing into the water for fear of unexpectedly cold temperatures
may be a thing of the past forNew Jersey shore vis...a areas detailed satellite information about water temperatures
from Sandy Hook to Cape May and beyond. "Ultimately, we'll provide water temperature info...
Shift from forest to crops lowers temperatures
...ere associatedwith different temperatures. He used temperatures
from 65 U.S. weather reporting stations from1986 t...t more solar energy back intospace. The daily high temperatures
at the surface in the East should,therefore, rise less than in the unshielded Midwest. Bonan's newst...
Tropical glaciers formed while earth was giant snowball
...ed." Ice can accumulate in the tropics only if temperatures
are below freezing or around freezing with large a...a level, where we find glacial deposits. Tropical temperatures
were still too warm and melted the ice before it could flow down from the mountains." The researc...
Hutchinson Center researchers first to induce state of suspended animation in model vertebrate organism
...ive extreme forms of stress, such as brutally cold temperatures
for an extended amount of time, and manage to recover from a metabolic shutdown."What makes some animals - and even some people, like the case of the frozen little girl in Canada - able to survive extreme stress? Wouldn't it be great to have some con...
Lake tributaries in Yellowstone National Park allow unique study of whirling disease
... cold, and some might be just right. Just what temperatures
allow the infection to flourish is what MacConnell...s know that the parasite is most active when water temperatures
reach between 48 degrees and 60 degrees Fahrenheit, said Dick Vincent, whirling disease research coo...
Study says bleaching could be a hidden strength for corals
... bleaching, particularly as a result of warmer sea temperatures
in recent years, is still a major cause for concern, and will continue to cause high mortality among reef ecosystems in the foreseeable future. "These findings do provide a glimmer of hope for the ability of coral reefs to survive the severe warming ...
Scientists share multidisciplinary discoveries at 'Earth System Processes'
...ydrothermal systems is that they teem with life at temperatures
far exceeding what humans would consider viable," ... Some of the organisms found living at the highest temperatures
appear to be very primitive forms, close to a last common ancestor of life. These forms are able to ...
Microbes and the dust they ride in on pose potential health risks
...e over open water in lower latitudes, the moderate temperatures
and high humidity are known to enhance microbial survival." Florida receives more than 50 percent of all microbe-laden African dust that reaches the United States. Over the last 25 years, dust quantities reaching Miami have increased during periods o...
Washington state researchers receive award for making genetic analysis easier
..., more gene specific and more tolerant of the high temperatures
they are exposed to during analysis. "As a result of these innovations, these probes have been brought from a laboratory discovery to practical products for global welfare," said William G. Gerber, M.D., chief executive officer at Epoch Biosciences I...
July media highlights: GEOLOGY and GSA TODAY
... occurs at progressively greater depths and higher temperatures
from west to east across the Cascades volcanic arc...rthern California were analyzed to determine their temperatures
and depths of melting. The increase in melting depth across the arc parallels modeled surfaces of co...
Military foods could enhance soldiers' performance by 2025
...with specialized nutrients that could elevate body temperatures
in cold weather or reduce susceptibility to detection by enemy sensors. "There is a great deal that can be done with foods through biotechnology to enhance a soldier's performance on the battlefield," Love says....
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