Researchers have for the first time mapped the complex choreography used by the immune system's T cells to recognize pathogens while avoiding attacks on the body's own cells.
Biotechnology
Jan 20, 2011
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Genghis Khan and his Mongol hordes had an impact on the global carbon cycle as big as today's annual demand for gasoline. The Black Death, on the other hand, came and went too quickly for it to cause much of a blip in the ...
Environment
Jan 20, 2011
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(PhysOrg.com) -- The eyes of moths, which allow them to see well at night, are also covered with a water-repellent, antireflective coating that makes their eyes among the least reflective surfaces in nature and helps them ...
Optics & Photonics
Jan 20, 2011
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Scientists at The Scripps Research Institute have found that a known enzyme in cells protects against measles virus, likely by altering the virus's genetic material, RNA. Cells lacking the enzyme become highly vulnerable ...
Cell & Microbiology
Jan 20, 2011
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Just over a year after the earthquake in Haiti killed 222,000 people there's a new problem that is killing Haitians. A cholera outbreak has doctors in the area scrambling and the water-borne illness has already claimed 3600 ...
Cell & Microbiology
Jan 20, 2011
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(PhysOrg.com) -- Today's Internet protocol, IPv4, is expected to run out of space this year. On World IPv6 Day the first steps will be taken to test a long-term solution that will address the 30 year old 32 bit addresses.
(PhysOrg.com) -- If you've ever tried waving to someone distant in a bustling crowd, you'll have some idea of how hard it can be for small rainforest animals to signal to each other with so many other distractions to catch ...
Plants & Animals
Jan 20, 2011
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(PhysOrg.com) -- The quantum computers of tomorrow might use photons, or particles of light, to move around the data they need to make calculations, but photons are tricky to work with. Two new papers by researchers working ...
Optics & Photonics
Jan 20, 2011
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Large wind farms are being built around the world as a cleaner way to generate electricity, but operators are still searching for the most efficient way to arrange the massive turbines that turn moving air into power.
General Physics
Jan 20, 2011
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For centuries, some of the greatest names in math have tried to make sense of partition numbers, the basis for adding and counting. Many mathematicians added major pieces to the puzzle, but all of them fell short of a full ...
Mathematics
Jan 20, 2011
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