The precise timing of the origin of life on Earth and the changes in life during the past 4.5 billion years has been a subject of great controversy for the past century. The principal indicator of the amount of organic carbon ...
Earth Sciences
Sep 10, 2008
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Some of the most challenging obstacles limiting the reprogramming of mature human cells into stem cells may not seem quite as daunting in the near future. Two independent research papers, published by Cell Press in the September ...
Sep 10, 2008
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Unlike some parents, adult stem cells don't seem to mind when their daughters get a tattoo. In fact, they're willing to pass them along. Using the molecular equivalent of a tattoo on DNA that adult stem cells (ASC) pass to ...
Sep 10, 2008
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A surprising interaction may enable development of new HIV treatment strategies by exploiting infection with multiple pathogens. The research, published by Cell Press in the September 11th issue of the journal Cell Host and ...
Sep 10, 2008
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The effectiveness of the media to inform the public during evacuations and wildland fire effects on recreation are some topics addressed in a U.S. Forest Service report published this month that is a compilation of 17 studies ...
Other
Sep 10, 2008
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On Aug. 14, 2003, the power grid failure that left the northeastern United States in darkness surprised a country unaccustomed to interrupted electricity. Expectations of a plentiful energy supply in the United States contrast ...
Engineering
Sep 10, 2008
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(PhysOrg.com) -- Researchers at the University of California, Berkeley, are continuing their march toward creating a synthetic, gecko-like adhesive, one sticky step at a time. Their latest milestone is the first adhesive ...
Sep 10, 2008
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Troubled children hurt their classmates' math and reading scores and worsen their behavior, according to new research by economists at the University of California, Davis, and University of Pittsburgh.
Other
Sep 10, 2008
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More than 1,500 audiocassette tapes taken in 2001 from Osama bin Laden's former residential compound in Qandahar, Afghanistan, are yielding new insights into the radical Islamic militant leader's intellectual development ...
Other
Sep 10, 2008
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(PhysOrg.com) -- According to the second law of thermodynamics, entropy always increases. For example, two bodies of different temperatures, when brought into contact, will eventually mix together to result in a uniform temperature. ...
