Archive: 11/03/2009

Quantum Dots Could Boost Solar Cell Efficiency

( -- The transition to environmentally benign energy sources is one of the most significant challenges of the 21st century. Solar power, which uses sunlight to generate electricity, is one promising source. It ...

dateMar 11, 2009 in Nanophysics
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New technologies help scientists track fish species

( -- New tracking and observing technologies are giving marine conservationists a fish-eye view of conditions, from overfishing to climate change, that are contributing to declining fish populations, according ...

dateMar 11, 2009 in Ecology
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Measuring the strength needed to move chromosomes

( -- It’s about as long as the width of a human hair and only half that length across. So it’s tiny — measured in millionths of a meter — and extremely tricky to manipulate. But the meiotic spindle plays ...

dateMar 11, 2009 in Biochemistry
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A Black Hole in Medusa's Hair

This composite image of the Medusa galaxy (also known as NGC 4194) shows X-ray data from NASA's Chandra X-ray Observatory in blue and optical light from the Hubble Space Telescope in orange. Located above the center of the ...

dateMar 11, 2009 in Astronomy
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Study shows dramatic growth in number of hospitalists

One of the most striking changes in health care over the last two decades has been a dramatic increase in physicians categorized as "hospitalists" — doctors who practice almost exclusively in hospitals, rather than combining ...

dateMar 11, 2009 in Other
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