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http://www.sciencenews.org/view/issue/id/41252
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In the December 5 Issue:
- TABLE OF CONTENTS
- Climate might be right for a deal: Copenhagen negotiations will take steps toward a climate-stabilizing treaty
- Botanical Whales: Adventures in the Tortugas reveal that seagrass fields need saving too
- Breaking the Speed Limit: Studies examine physiology and technology to better foresee the ultimate edge of human performance
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March 14th, 2009
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Two researchers proclaimed 20 years ago that they’d achieved cold fusion, the ultimate energy solution. The work went nowhere, but the hope remains. (p. 20)
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Researchers look to the new administration to bring fresh perspectives to health, energy, climate policy and science funding (p. 24)
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A rough draft of the Neandertal genome is complete, scientists announced on Darwin’s 200th birthday. (p. 5)
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Oceanic version of wind shear can disorient marine microorganisms and trigger formation of thin, densely populated layers. (p. 8)
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Census of Marine Life offers a preview of massive international census gives fuller count, shows some sea species at both poles. (p. 8)
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Researchers have for the first time mapped the gravitational field of the moon’s farside — the lunar half that is permanently turned away from Earth. (p. 9)
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In an unprecedented collision, two large satellites crashed into each other in low-Earth orbit on February 10. The effect on a planned Hubble repair mission remains unclear. (p. 9)
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Elevated urine concentrations of a compound called sarcosine in men with prostate cancer may signal an aggressive malignancy. (p. 10)
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In an experiment mimicking slot machines, people’s brains reacted similarly to almost winning as to winning, possibly explaining why gambling can be addictive. (p. 10)
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The aging-related Sirtuin 1 protein also regulates heat shock response, a mechanism cells use to combat stress. (p. 11)
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Smokers who are offered several hundred dollars are three times as likely to quit as those offered no reward. (p. 12)
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Using population data, researchers have linked a widespread Asian economic crisis in 1997 to an abrupt increase in suicide rates the following year in hard-hit places. (p. 12)
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Smoke from forest fires, agricultural burning may be substantial part of springtime plumes. (p. 13)
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A sudden peak in duplication of chunks of DNA in the common ancestor of humans, chimps and gorillas led to genetic flexibility, which created differences among the species. (p. 14)
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A chemical from an ocean-dwelling sponge can reprogram antibiotic resistant bacteria to make them vulnerable to medicines again, new evidence suggests. (p. 16)
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Mobile DNA elements have stuffed and shrunk the human genome, a comparison of two genomes reveal (p. 16)
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Whether crop-based biofuels will reduce greenhouse gas emissions depends on how, and where, they're grown. (p. 17)
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Toddlers who gesture more at age 14 months possess larger vocabularies when entering school, new research finds. (p. 17)
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New research reveals another impact of fish farming on wild stocks. (p. 18)
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Patagonian penguins have become sentinels of climate change and human impacts on the marine world. (p. 18)
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Review by Rachel Ehrenberg (p. 31)
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(p. 31)
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(p. 31)
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(p. 32)
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(p. 4)
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