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Tag: "beyond" at biology news

Detecting explosives with honeybees

...earch into why bees are such good detectors, going beyond merely demonstrating that bees can be used to identify the presence of explosives. By looking at such attributes as protein expression, the team sought to isolate genetic and physiological differences between those bees with good olfaction and those...

Second opinion yields treatment changes for half of patients

...w technique to determine whether cancer has spread beyond the breast. Thirty-two percent of patients had their surgery recommendations changed based on a multidisciplinary approach to surgical management The researchers found radiologists re-interpreted imaging results in 45 percent of patients, in some ...

New study finds similarities between monkey business and human business

..., these results suggest that loss-aversion extends beyond humans, and may be innate rather than learned." ...

Man may have caused pre-historic extinctions

...fossil records mean that the survival of the horse beyond the arrival of humans cannot be ruled out. The PNAS paper develops a new statistical method to help resolve the inherent problems associated with dating fossils from the Pleistocene period. The aim is to provide a far more accurate timetable for the...

Beaver dams create healthy downstream ecosystems

... of the importance of beaver in the valley bottoms beyond the upstream ponds," Westbrook said. "We found that upstream ponds were not the main hydrologic effect of the dams in the Colorado River valley. Instead, the beaver dams greatly enhanced hydrologic processes during the peak flow and low flow periods,...

New study shows antibiotic may protect the heart

... patients to favorably affect damaged heart muscle beyond the blockage causing a heart attack," said George W. Vetrovec, M.D., chair of cardiology at VCU's School of Medicine, and co-author of the study. For the last several years, Kukreja and his colleagues have studied a class of erectile dysfunction dru...

UNH researcher restoring oyster reefs to Great Bay

...are right for oyster reefs to prosper, but factors beyond his control ?water quality, larval abundances, and other conditions he's exploring ?play a major role in his success. At five different restoration sites around the Great Bay estuarine system, Grizzle and his team are experimenting with optimal cond...

Researcher gives hard thoughts on soft inheritance

...ield that deals with information stored "above and beyond the gene," referring to the Greek meaning of the term. A classic epigenetic mechanism is a process known as DNA methylation, a chemical modification of cytosine, one of the four chemical subunits of DNA. Without proper DNA methylation, higher organi...

Making a face: A new and earlier marker of neural crest development

...sic questions of biology and development reach far beyond these chicken and eggs." Based on work from the 1940's before molecular tools were available, the neural crest was thought to form by interactions between neural and non-neural cell layers. "We show in this work that neural crest stem cell precurs...

Gene screen for breast cancer better than pathologist's 'eye'

...hanges in cells, especially for early cancers, are beyond the reach of even the most powerful microscopes. Sukumar's test searches for unusually high amounts of chemical tags embedded by a process called methylation within critical regions of DNA. The tags attach to the "on" switch of genes which starts ...

UC Davis researchers reveal apples' protective ways

...Davis study takes that research further by looking beyond the antioxidant effects of apple flavonoids. In the current study, Gershwin and his colleagues exposed human endothelial cells to an extract of an apple mash made from different apple varieties. The researchers then challenged these cells by exposin...

What's nature worth? New computer models tell all

...If his project succeeds, "it will allow us to move beyond the counterproductive conservation vs. development debate to thinking about conservation as a form of development," he writes. ...

UN review shows need to halt destructive fishing practice

...f the high seas ?the 64 percent of ocean that lies beyond the national jurisdictions of any individual nation. Its review, ordered by the U.N. General Assembly in 2004, was based on reports from member states on steps taken to stop destructive high seas fishing practices. A draft version of the review pos...

Study identifies new role for breast cancer susceptibility gene

...s that BRCA1 possesses a role in tumor suppression beyond maintaining genomic stability by regulating intercellular signaling within the tissue microenvironment. This view will extend BRCA1's tumor suppression function to the surroundings that influence the fate of neighboring cells and fortify the pathogen...

Researchers identify human DNA on the fast track

...gn and development of the mammalian cortex." And beyond HAR1 lie HAR2, HAR3, and so on through the 49 regions Pollard identified with her DNA screen. "We've only studied one of these regions carefully," said Haussler. "Now we have to go through the other 48." ...

Spinal cord bridge bypasses injury to restore mobility

...ondroitinase Allows Robust Functional Regeneration beyond a Hemisection Lesion of the Adult Rat Spinal Cord." The other researchers were John Houle, the lead author, and Veronica Tom (a Case alum) from Drexel University College of Medicine; and Gail Wagoner and Napoleon Phillips from the University of Arka...

The vicious cycle of rainforest destruction

...vel of carbon in the atmosphere is set to increase beyond current estimates it could force a change in international targets for reducing carbon emissions. ...

How ancient whales lost their legs, got sleek and conquered the oceans

...c hedgehog is required for normal limbs to develop beyond the knee and elbow joints. Because ancient whales' hind limbs remained perfectly formed all the way to the toes even as they became smaller suggests that Sonic hedgehog was still functioning to pattern the limb skeleton. The new research shows that,...

Researchers develop flood-tolerant California rice

...energy, resulting in death if submergence persists beyond four days. Bailey-Serres notes that access today to information about the rice genome ?all the genetic material in the chromosomes of rice ?has greatly accelerated progress in identifying specific genes that confer specific traits. "Currently, the...

UC Davis researchers move biotechnology closer to replacing electronic pacemakers

... According to Li, the current study moves research beyond using animal models such as mice and rats, whose hearts can beat up to 600 times per minute. Large animals such as pigs make for far more realistic models because their anatomy and physiology, including average heart rates of about 70 to 80 beats per...

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