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Tag: "dependent" at biology news

Researchers reveal the infectious impact of salmon farms on wild salmon

...ly important fish is either directly or indirectly dependent on herring." "Previous studies have been dismissed by industry, but past studies haven't looked at such large samples or the spatial aspect," says fisheries biologist Ransom Myers of the University of Dalhousie. "This study goes far beyond a theoret...

Ants Genetic Engineering Leads To Species Interdependency

...n favor of the hybrids, thereby becomingcompletely dependent on one another for survival.Female ants are generally found in two forms: reproductive queens andsterile workers. The role, or caste, of an individual is determined forlife at a certain stage in her development.In virtually all ant species, it is the...

New Breast Cancer Test Could Save Lives

...mportant for successful treatment - many women are dependent on self-examination which can prove unreliable. This latest technology has the ability to image through dense breast tissue, and therefore can reach a far wider section of women than X-ray mammography can. Women below 50 in particular will benefit f...

Buying Time Through Hibernation on Demand

...althy tissue. Cancer cells, Roth explained, aren't dependent on oxygen to grow. As a result, they are more resistant to radiation than surrounding healthy cells, which need oxygen to live. Roth hypothesizes that temporarily eliminating oxygen dependence in healthy cells could make them a less-vulnerable target...

U-M team recovers ancient whale in Egyptian desert

...althy tissue. Cancer cells, Roth explained, aren't dependent on oxygen to grow. As a result, they are more resistant to radiation than surrounding healthy cells, which need oxygen to live. Roth hypothesizes that temporarily eliminating oxygen dependence in healthy cells could make them a less-vulnerable target...

Solutions that reduce death of marine life reeled in by International Smart Gear Competition

...bvious how vital the ocean's been to me, we're all dependent on an ocean full of life and, in turn, it's dependent on our actions," said grand prize winner Steve Beverly, fisheries development officer for the Secret...

Small species back-up giant marsupial climate change extinction claim

...orrow (Tuesday 31 May) they found smaller species, dependent on a wetter environment, had also disappeared. By...and sediment data. "Our samples show that species dependent on habitats such as woodlands and vine thickets dominate the lowest section of the trench, which dat...

Growth in biomass could put US on road to energy independence

...ased energy security as the U.S. would become less dependent on foreign oil, a potential 10 percent reduction in greenhouse gas emissions and an improved rural economic picture. Current production of ethanol is about 3.4 billion gallons per year, but that total could reach 80 billion gallons or more under the...

Human Cells Filmed Instantly Messaging for First Time

...ased energy security as the U.S. would become less dependent on foreign oil, a potential 10 percent reduction in greenhouse gas emissions and an improved rural economic picture. Current production of ethanol is about 3.4 billion gallons per year, but that total could reach 80 billion gallons or more under the...

Potential Drug Target For Treating Cocaine Abuse Found

... In 2002, 1.5 million Americans were thought to be dependent on or abusing cocaine. "Cocaine is capable of destroying not only the lives of those addicted, but also the lives of those around them," says Katz. "An effective treatment for cocaine addiction would be of immeasurable help to these individuals and t...

Measuring Enzymes At End Of Cancer Pathway Predicts Outcome Of Tarceva, Taxol

...They found that tumor cell death was significantly dependent on whether CDK2 activity was repressed. They then double checked those findings by "putting CDK2 back," Ueno says. "We found that the effects of Tarceva were reduced when CDK2 was given back to the cells, so this shows us that CDK2 is the real target...

Climatologists discover deep-sea secret

...ing a mild climate. The strength of the current is dependent on the salinity of the water travelling from the south. If the salinity decreases, the current weakens. Scientists predict that global warming could cause part of the Greenland ice sheet to melt, giving rise to increased levels of freshwater in the A...

Unique library of plant genes germinates, takes root at UNC

...handful of plants although humans are economically dependent on dozens of different ones, he said. It would be far too expensive and time-consuming, however, to characterize the genomes of all of them experimentally. "Many plants are impractical to work with experimentally because they have genomes full of ma...

Study of energy and health in Africa focuses spotlight on charcoal and forest management

...y developing nations in Asia and Latin America, is dependent on both wood and charcoal for cooking and heating homes. In 2000, nearly 470 million tons of wood were consumed in homes in sub-Saharan Africa in the form of firewood and charcoal. This is more wood per capita than is used in any other region in the ...

Protein synthesis can be controlled by light, opening way for new scientific, medical applications

...s have learned that much of biological function is dependent on the specific location of a particular event. While the new caged compound and its photoreactive properties may never be used for anything as complex as drug delivery, it may well serve a purpose in studying such areas as memory, brain function an...

Random gene expression may drive HIV into hiding

...The significance of fluctuations in expression are dependent on HIV being expressed at a low level in the cell initially, Arkin said. Commonly, it's only when just a few molecules are interacting with each other that random fluctuations can have such a large effect on eventual outcome, he explained. The resea...

Enzyme's newly discovered role may make it target for arthritis treatment

...eases' ability to affect integrin rearrangement is dependent on their catalytic activity, and that's an ability that can be taken away from them." Pham suspects this class of proteases may also be making significant contributions to other autoimmune and inflammatory conditions besides arthritis. She plans fur...

Study finds adult stem cells can replicate

...eases' ability to affect integrin rearrangement is dependent on their catalytic activity, and that's an ability that can be taken away from them." Pham suspects this class of proteases may also be making significant contributions to other autoimmune and inflammatory conditions besides arthritis. She plans fur...

Excess liver gene protects against high-fat diet

... to high cholesterol and heart disease in a manner dependent on diet. Furthermore, drugs that modulate LXRa activity may have potential as therapies for lipid disorders and atherosclerosis, the group said. "The high-cholesterol, high-fat Western diet has abetted an epidemic of atherosclerotic cardiovascular d...

Mechanism for the captation of nutrients in plants- unknown to date

...n process independent of "endocitosis" and another dependent on "endocitosis" and which required approximately 90 minutes from the time the cell started to capture saccharose in order to start functioning. That is, for these first 90 minutes, the saccharose penetrates using the transporter mechanism while, par...

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