News tagged with positive selection
Evidence of evolutionary selection found in 544 genes
Biology /
Sep 16, 2008 |
4.4 / 5 (46) |
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(PhysOrg.com) -- By comparing the genomes of humans and five other mammals, Cornell researchers have identified 544 genes that have been shaped by positive selection over millions of years of evolution.
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Stopping rape as an object of war
Other Sciences / Social Sciences
Dec 04, 2009 |
5 / 5 (1) |
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(PhysOrg.com) -- It is a disturbing truth that sexual- and gender-based violence (SGBV) is used as a war tactic in developing nations. Silvia Dominguez, assistant professor of sociology at Northeastern University, ...
Most runaway teens return home with help of family ties, study finds
Medicine & Health / Psychology & Psychiatry
Dec 04, 2009 |
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(PhysOrg.com) -- Runaways who maintain contact with pro-social peers and have parental support, especially from their mothers, tend to return home.
Repeat negative CT scan for lung cancer does not encourage ex-smokers to resume the habit
Dec 04, 2009 |
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Assurance of a cancer-free status did not prompt people participating in a long-term computerized tomography (CT) lung-cancer screening program to pick up their cigarettes again, researchers wrote in a study published in ...
Weight loss reduces sleep problems in obese men
Dec 04, 2009 |
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Weight loss reduces obstructive sleep apnoea in obese men, with the greatest effect seen in patients with severe disease, according to new research published in the British Medical Journal today.
Fishing the online stream
Dec 04, 2009 |
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On West Lancaster Avenue in Wayne, Pa., local businessman Robert Lail runs what he calls "YouTube for business."
New data show breakthrough microRNA-targeted therapy holds promise as new treatment for hepatitis C
Dec 03, 2009 |
5 / 5 (1) |
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A study published online in this week's Science shows that SPC3649, a breakthrough microRNA-targeted therapy developed by Santaris Pharma A/S, holds promise as a novel treatment for patients infected with the Hepatitis C viru ...
Researchers report poor outcomes for CCI patients leaving hospitals on ventilators
Dec 03, 2009 |
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Patients, discharged from hospitals on ventilator support and with cognitive impairments, fare poorly four months later. Researchers from the Frances Payne Bolton School of Nursing at Case Western Reserve University report ...
Papillomavirus silences innate immune response
Dec 03, 2009 |
4 / 5 (1) |
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In the 1980s, Harald zur Hausen and his co-workers discovered that specific types of human papillomavirus (HPV) cause cervical cancer. Scientists soon found out how these pathogens cause cells to degenerate. ...
By feeding the birds, you could change their evolutionary fate
Dec 03, 2009 |
4 / 5 (5) |
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Feeding birds in winter is a most innocent human activity, but it can nonetheless have profound effects on the evolutionary future of a species, and those changes can be seen in the very near term. That's ...
Professor foresees rising Antarctic snowmelt
Space & Earth / Earth Sciences
Dec 03, 2009 |
2 / 5 (1) |
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The 30-year record low in Antarctic snowmelt that occurred during the 2008-09 austral summer was likely due to concurrent strong positive phases for two main climate drivers, ENSO (El Niño - Southern Oscillation) and SAM ...
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