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Monday, 17 March 2008 |
Human diseases and social networks seem to have
little in common. However, at the crux of these two lies a network,
communities within the network, and farther even, substructures of the
communities. In a recent paper in Physical Review E
77:016104 (2008), Weixiong Zhang, Ph.D., Washington University
associate professor of computer science and engineering and of
genetics, along with his Ph.D. student, Jianhua Ruan, published an
algorithm (a recipe of computer instructions) to automatically identify
communities and their subtle structures in various networks.
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The Corrupt Underworld of Ants |
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Tuesday, 11 March 2008 |
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Far from being a model of social co-operation, the ant world is
riddled with cheating and corruption – and it goes all the way to the
top, according to scientists from the Universities of Leeds and
Copenhagen.
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Tuesday, 11 March 2008 |
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In biology, as in construction, it’s all about having tools that fit
the job. Researchers at Rockefeller University have now created a tiny
tool, more than 10,000 times smaller than the diameter of a human hair,
capable of encasing single membrane proteins from living cells. The new
system, which resembles a nanoscale sushi roll, will allow
investigators to individually stimulate these key proteins with
specific molecules and signals in order to precisely define the
biological reactions that result.
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Stagnant Funding Spells Brain Drain For U.S. |
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Tuesday, 11 March 2008 |
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Five years have passed since the National Institutes of Health (NIH) have recieved a budget increase. In that time the purchasing power of the NIH budget has dropped 13-percent. There are fears that if this trend continues, the U.S. will experience a loss of talented and productive would-be researchers to seek other professions or find funding and research jobs outside of the U.S.
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