A new report from the National Research Council offers a framework for evaluating the effects of a 2007 reform law on the District of Columbia's public schools. The evaluation program must include systematic yearly public ...
Social Sciences
Mar 4, 2011
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Within the cells, the RNA polymerase (RNAP) protein complex clutches DNA like a crab claw, scanning across gene-coding regions and transcribing these sequences into the messenger RNA molecules that will ultimately provide ...
Cell & Microbiology
Mar 4, 2011
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Transmitting information as pulses of light through fiber-optic cables is the fastest and highest-bandwidth communications technology that exists today. Yet even this technology is being pressed to carry ever-greater quantities ...
Optics & Photonics
Mar 4, 2011
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It’s a new species of shrimp and it’s been named Princaxelia jamiesoni after the University of Aberdeen scientist who discovered it in trenches at the bottom of the North West Pacific Ocean.
Plants & Animals
Mar 4, 2011
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When people think about sources of greenhouse gas emissions, they think of oil refineries, smokestacks and trucks spewing out thick black smoke. They don't usually think of cows.
Environment
Mar 4, 2011
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(PhysOrg.com) -- Today, engineers at NASA's Marshall Space Flight Center in Huntsville, Ala., began the first phase of integrated system tests on a new robotic lander prototype at Redstone Test Center’s propulsion test ...
Space Exploration
Mar 4, 2011
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Today IBM announced the next evolution of the patient portal, significantly expanding the types of information, alerts, recommendations and interactive coaching healthcare providers can offer to their patients online.
Other
Mar 4, 2011
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The properties of a material are greatly affected by the electrical and magnetic structure of its constituent ions and electrons. In a ferromagnet, for example, neighboring electron spins point in the same direction, producing ...
General Physics
Mar 4, 2011
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(PhysOrg.com) -- The various spiral arm segments of the Sunflower galaxy, also known as Messier 63, show up vividly in this image taken in infrared light by NASA's Spitzer Space Telescope. Infrared light is sensitive to the ...
Astronomy
Mar 4, 2011
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"One Sunday in Cairo’s Tahrir Square, a remarkable scene occurred during the 18-days of protest that ended the despotic rule of Hosni Mubarak," said Rashied Omar, Research Scholar of Islamic Studies and Peacebuilding ...
Social Sciences
Mar 4, 2011
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