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Holding breath for several minutes elevates marker for brain damage

... (breath-holding) can damage the brain over the long term. "The results indicate that prolonged, ... blood suggests that holding one's breath for a long time disrupts the blood-brain barrier, they said. ... competitive sport. Competitive events include how long divers can remain underwater, how far they can ...

'Microfluidic palette' may paint clearer picture of biological processes

... the chamber, each access port connects to the long tail of a Y-shaped channel etched into a second ... do so almost entirely by diffusion. Therefore, as long as a constant flow of fluid is maintained through ... gradient forms that remains constant as long as flow rate into the system does not change. ...

Hush little baby... Linking genes, brain and behavior in children

... frontal cortex at 9 months, those who had the long version of the DRD4 gene were more soothable at ... of the gene. However, the children with the long version of the DRD4 gene who had more activity in ... children. These findings indicate that the long version of the DRD4 gene may act as a moderator ...

UH team analyzes Hurricane Ike's effects on waterways, fish contamination

... PCBs, whose manufacture was banned in 1979, long were used as coolants and lubricants in ... of it now and will continue to for a long time, especially in coastal communities. "You ... "I'll tell you, industry in this area has come a long way. They really realize that they live in a ...

Explosive growth of life on Earth fueled by early greening of planet

... order to understand what happened on Earth such a long time ago, researchers have studied the isotopic ... that formed during that period. Researchers have long studied these rocks, but Knauth said many focused ... in Earth's oxygen could happen, which has been long postulated as necessary for animals to evolve big ...

Army study improves ability to predict drinking water needs

... they bring? Military planners and others have long wrestled with that question, but new research ... wear expanded, to predict water needs over long hours working outdoors refined, to make the ... variables such as height and weight, how hard and long they would be active and what the environmental ...

Gene predicts how brain responds to fatigue, human study shows

... respond to sleep deprivation. People carry either long or short variants of the gene. Those with the ... after sleep deprivation. However, those with the long PER3 variant are vulnerable they show deficits ... a sleepless night, vulnerable participants, the long PER3 group, showed reduced activity in brain ...

How to text message and avoid pain

... MESSAGING Don't sit in the same position for a long time; instead try to vary your position. Use the ... Use both thumbs. Avoid hunching over for a long time. Give your thumbs a break when typing long messages. Don't type too fast. ...

CU-Boulder study shows Maya intensively cultivated manioc 1,400 years ago

... tubers -- which can be more than three feet long and as thick as a man's arm -- were a dietary ... Latin America. Corn, beans and squash have long been known to be staples of the ancient Maya, but ... Maya villagers living in the region today have a long tradition of cutting manioc roots into small ...

Wildlife Conservation Society supports world's first study of egg-laying mammal

... digs (deeper holes excavated with the echidna's long claws). "The limited information on the ... to live young. Echidnas resemble anteaters with long course hairs and spines. They are powerful diggers and possess short legs with long claws. The snout of the echidna ends in a tiny ...

American Chemical Society's weekly PressPac -- April 29, 2009

... Laskin and colleagues note that forest fires long have been recognized as major sources of organic ... Noting that the alkaloids can be transported long distances, the scientists say that fires ... more mercury during both short (2 months) and long (5 months) ice-free seasons and postulate that ...

Laughing hyenas, wailing levees, the sound of cheese and blaring bagpipes

... mesopelagic and benthopelagic fish alive for very long at the surface, so knowledge about how they ... the specificity of this targeting, Lindner grafts long arm-like molecules to the outside of the bubbles. ... out the more important changes and calculates how long these frequencies took to bounce back to the two ...

New study reveals the protein that makes phosphate chains in yeast

... molecular jack-of-all trades is polyphosphate, a long chain of phosphate molecules. Researchers at the ... sickness. Scientists have known for a long time how bacteria make phosphate chains, but how ... "it sits in the vacuolar membrane, generates long chains of polyphosphates and we speculate that it ...

Sea Grant report synthesizes recent research on New York's clams

... mercenaria Populations in South Shore Bays of long Island, NY, a 43-page technical report that ... the downward trend in hard clam populations in long Island's south shore bays, an issue of both ... the factors controlling hard clam populations in long Island's south shore estuaries, and thereby ...

Field Museum paleontologist leads study on two new dinosaurs from China

... name Xiong Guan ("Grand Pass") for Jiayuguan and long for dragon. The specific name baimoensis comes ... is unusual among tyrannosaurs in having a very long and narrow snout, rather than a wide, massive ... its closest relatives evolved from animlas with long slender snouts like Xiongguanlong." Second ...

Teeth of Columbus' crew flesh out tale of new world discovery

... The adage that dead men tell no tales has long been disproved by archaeology. Now, however, ... Headstones and other identifying markers have long since faded to nothing or have been lost entirely ... century sailors who lacked vitamin C on their long voyages, as well as signs of malnutrition and ...

American Chemical Society's weekly PressPac -- March 11, 2009

... ARTICLE #4 Record long platinum nanowires: An advance toward better fuel ... and oxygen), scientists have sought to produce long wires from this precious metal. Those wires ... electrospinning, the team made platinum nanowires long enough to construct that web. "Our ultimate ...

Sea Grant awards $820,000 for research under EPA's Long Island Sound study

... and New York have awarded nearly $820,000 in long Island Sound Study research grants to five ... most serious threats to the ecological health of long Island Sound, a water body designated by the ... information to resource managers throughout the long Island Sound watershed. Several projects will ...

Ocean's journey towards the center of the Earth

... Earth's interior and at the same time formed a long chain of volcanic islands at the surface. Mr ... a tectonic plate about 70 km thick, some 2500 km long and 700 km wide was subducted into the Earth's ... Zealand between 50 and 20 million years ago by a long chain of volcanic islands. This could be ...

'Undesirable' evolution can be reversed in fish, Stony Brook University scientists show

... School of Marine and Atmospheric Sciences in long Island, New York. Although Charles Darwin showed ... among scientists. "It took scientists a long time to reach a consensus on climate change, and acceptance of this phenomenon might require a long time, too," Dr. Conover said. Dr. Ellen ...

A worm-and-mouse tale: B cells deserve more respect

... that the immune system is more versatile than has long been thought. The work with worms is opening a ... , a bright red worm about one-third of an inch long that infects mice. It's a cousin of the scores ... T cells to mature and operate properly. "It's long been dogma that B cells need the help of T cells ...

Shorter wait means longer life for kidney transplant candidates

... GAINESVILLE, Fla. How long a patient survives after a kidney transplant ... "Patients want to know their survival long term, not just if they happen to make it to ... she gets, and the poorer the life expectancy. long waiting times for donor organs have led many ...

In India: A search for more effective tuberculosis drugs

... the need to take so many drugs over such a long period of time. To create their new compound, ... Some scientists have suggested that these long lipid molecules contribute to the bacteria's ... link simple building blockscalled fatty acidsinto long chains. In 2004, Gokhale and his colleagues found ...

Billion-year revision of plant evolution timeline may stem from discovery of lignin in seaweed

... except by their own woody tissues, has long been considered one of the characteristics ... from aquatic green algae and scientists have long believed that lignin evolved after plants took to ... machinery for producing lignin may have existed long before algae moved to land." Alternatively, ...

CSHL scientists find a new class of small RNAs and define its function

... is part of the effort to catalogue the entire long and short RNA output of cells. Focusing on two ... The CSHL team proposes a model in which mature long RNAs are cleaved followed by a capping of the newly generated long RNA fragment. This is followed by the clipping of ...

Warmer climate causing huge increase in tree mortality across the West

... and ruled out as a dominant cause of the long term, pervasive level of tree death found in this ... much slower and difficult to identify, but in the long run extremely important." The areas studied in ... trees to die than used to," Harmon said. "Over long periods of time that can change the whole ...

Why you can't hurry love

... a bad male. A male's willingness to court for a long time is a signal that he is likely to be a good male. long courtship is a price paid for increasing the ... is how to screen out bad males, and this is where long courtship comes into play. A male is assumed to ...

Biologists discover link between CGG repeats in DNA and neurological disorders

... MEDFORD/SOMERVILLE, Mass. Researchers have long known that some repetitive DNA sequences can make ... from Mirkin's lab had shown that peculiar long DNA sequences named palindromes change the shape ... of a stable, hairpin-like DNA structure formed by long CGG repeats. Abnormal structures disable ...

January GEOLOGY media highlights

... occurred in approximately the same regions for long periods of time, and they infer that future ... to form. Uplift and magma intrusion at long Valley caldera from InSAR and gravity ... compelling evidence that magma is forcing long Valley caldera, located in the east side of the ...

Penn scientists discover cells reorganize shape to fit the situation

... pipes that arrange themselves in bundles down the long axis of the cell. As they extend from the cell ... intended direction generally, further along the long axis of the cell. Essentially, what Tran's ... that arise from this research. First, how long can mutant cells maintain their wild-type ...

Caltech researchers get first 3-D glimpse of bacterial cell-wall architecture

... and you get better." Researchers have long been interested in understanding the precise ... of the bacterial sacculus. "What we saw were long skinny tubes wrapping around the bag like the ... important, says Jensen, because scientists have long been in the dark about some of the most basic ...

European biodiversity and ecosystem scientists merge and gear up for long-term research

... tackle the human impact on biodiversity require long term research and collaboration between many ... of human activities, over both the short and long term."We can learn a lot about functional ... delayed response of ecological systems." In the long run, an integration of the network into currently ...

Newly-discovered mechanism can explain the Beckwith-Wiedemann syndrome

... 11. When part of this domain is transcribed a long RNA molecule, Kcnq1ot1-RNA, is formed. This RNA ... cells. We show for the first time how a long RNA molecule can establish and maintain silencing ... only a gene located in the same area as where the long RNA molecule is transcribed from that can be ...

'A dinosaur dance floor'

... tail-drag marks which are up to 24 feet long are a special discovery because there are fewer ... footprints measure 10 inches to 16 inches long and have three toes and a heel. Eubrontes tracks ... tracks measure 7 inches to 10 inches long and were made by dinosaurs that ranged from 6 ...

Novel anti-cancer mechanism found in long-lived rodents

... have found that small-bodied rodents with long lifespans have evolved a previously unknown ... wisdom has assumed that an animal that lived as long as we humans do needed to suppress telomerase ... or more? With telomerase fully active over such a long period, why isn't cancer rampant in these ...

Giant grass offers clues to growing corn in cooler climes, researchers report

... times the level it was in the warm conditions," long said. In C4 plants, PPDK catalyzes ... which tend to come apart at low temperatures, long said. To test how cold temperatures affect the ... protein, then it becomes more resistant to cold," long said. "At higher concentration the protein ...

OU researchers isolate microorganisms that convert hydrocarbons to natural gas

... absence of oxygeninsight that was lacking for a long time. OU researchers have extended their ... of a sudden. Rather, biocorrosion occurs over a long period of time, and we are using a series of new ... of biofuels may not allow us to store them as long and more research is needed to determine the ...

Signals from the Atlantic salmon highway

... data provided valuable information about how long it took Atlantic salmon from the Penobscot River ... can learn which route each fish took, how long it took to get to the Gulf of Maine, and most ... looking for a fish that is still less than a foot long that could be anywhere in the Northwest Atlantic ...

Slipping through cell walls, nanotubes deliver high-potency punch to cancer tumors in mice

... surgical flyswatter. Cancer researchers have long faced a similar situation in chemotherapy: how to ... in the bloodstream for up to 10 hours, long enough to find their way to the target location ... the circulation time, it proved to still be long enough to deliver a highly effective dose inside ...

Plastics suspect in lobster illness

... shell disease affecting lobsters from long Island Sound to Maine has led one Marine ... investigating a tremendous lobster die off at long Island Sound in 1999, when shell disease, first ... a real problem," Laufer says. "Plastics last a long time, but breakdown products last even longer. ...
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