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Tag: "equivalent" at biology news

Common gene version optimizes thinking -- but with a possible downside

...tion, it could backfire -- resulting in the neural equivalent of a superhighway to a dead-end." Meyer-Lindenberg, Weinberger and colleagues in the NIMH Genes, Cognition and Psychosis program report their results in the February 9, 2007 issue of the Journal of Clinical Investigation. Previous studies in an...

Tracking sperm whales and jumbo squid

... may exceed 100 million metric tons a year—roughly equivalent to the entire annual harvest of all the commercial fisheries on Earth. Humans also are big consumers of squid, including jumbo squid, now the target of a thriving commercial fishery in Baja California. "Even though this species is found only in th...

MIT model helps researchers 'see' brain development

...d how quickly. She found that the coarse folds, equivalent to the largest folds in a crumpled piece of paper, develop earlier and more slowly than fine-grained folds. In addition to providing insights into cortical development, the team is now comparing the images to those being collected from patients w...

New compound prevents alcoholic behavior, relapse in animals by blocking stress response

...y that typically develops in rats experiencing the equivalent of a hangover. Such stress is linked with higher levels of a brain chemical called corticotropin-releasing factor (CRF), which is also thought to trigger relapse in rats that have developed a long-term dependency on alcohol. The research, by Markus H...

Pitt study notes decline in male births in the US and Japan

... are male. They note that the decline in births is equivalent to 135,000 fewer white males in the U.S. and 127,000 fewer males in Japan over the past three decades and suggest that environmental factors are one explanation for these trends. “The pattern of decline in the ratio of male to female births remain...

Mutation improves memory, may lead to memory-enhancing pill

...mes to memorize it," Costa-Mattioli said. "A human equivalent of these mice would get the information right away." The mutant mice also performed better than normal mice in a "fear-conditioning" test. In that test, animals are put into a cage followed by a mild foot shock or are exposed to a tone paired with...

Bones in motion: Brown scientists to create new 3-D X-ray system

...movements with 0.1 millimeter accuracy and see the equivalent of 1,000 CT images per second. The result will be a powerful tool with applications for basic and applied research: testing new theories of biomechanics, such as muscle-tendon interactions; studying the evolution of bodies and how they ...

Deconstructing brain wiring, one neuron at a time

...coats rabies virus particles was replaced with its equivalent from a bird virus. This prevented the modified rabies virus from infecting mammalian neurons at all ?unless they had been engineered to express the bird virus's receptor, a bird cell surface protein known as TVA. Such neurons will then be "disguised"...

Hives ferment a yeasty brew, attract beetle pest

...demy of Sciences that the beetles could detect the equivalent of 2 nanograms of IPA at the entrance to an undisturbed honeybee colony, but, the antennae of guard and forager bees did not detect this level of IPA. "This indicates strongly that the heightened sensitivity of the beetles to volatiles released fr...

DOE JGI sets 'gold standard' for metagenomic data analysis

...eld of metagenomics is still in its infancy -- the equivalent of the early days of the California Gold Rush, with labs vying to stake their claim. Amidst the prospecting, the call has been issued for methods to separate fool's gold from the real nuggets. Such a gold standard has now been provided through wo...

Confirmed -- deforestation plays critical climate change role

...his 50/50/50 option would avoid the release of the equivalent of six years of global fossil fuel emissions." Reducing deforestation is just one of a portfolio of mitigation options needed to reduce concentrations of greenhouse gases in the atmosphere. "Globally, we need a range of actions to reduce the b...

Anthrax paralyzes immune cells with lethal toxin, UF research shows

...ith the toxin. "I would say it's the scientific equivalent of finding a needle in a haystack," Southwick said. The team compared before and after snapshots of neutrophils exposed to a purified form of the toxin, as well as images showing how protein expression changed in cells. After scrutinizing the imag...

Machine preservation may promote more organ sharing

...has shown that success rates with these organs are equivalent to those of conventional donors, in part because of appropriate donor and recipient matching through using the pump to assess viability and function. ...

Alzheimer's disease to quadruple worldwide by 2050

...ith Alzheimer’s disease will need high-level care, equivalent to that of a nursing home. The findings were presented June 10 at the Second Alzheimer’s Association International Conference on Prevention of Dementia held in Washington, D.C. and are published in the Association’s journal, Alzheimer’s & Dementi...

Cigarette smoke alters DNA in sperm, genetic damage could pass to offspring

...” mice were exposed to two cigarettes per day, the equivalent – based on blood levels of tobacco by-products – of an average human smoker, according to research previously published by one of the study's co-authors. Yauk and her colleagues found that the rate of Ms6-hm mutations in the smoking mice were 1.4 ...

Soils offer new hope as carbon sink

...sts because one application of agrichar may be the equivalent of compost applications of the same weight every year for decades. "For the environment, it means soil carbon emissions can be reduced because rapidly decomposing carbon forms are being replaced by stable ones in the form of agrichar." Unfortun...

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