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http://www.sciencenews.org/view/issue/id/46803
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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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September 12th, 2009
September 12, 2009 issue
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Universal concerns, not cultural values, may shape kids’ developing notions of right and wrong (p. 16)
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As food allergies proliferate, new strategies may help patients ingest their way to tolerance (p. 20)
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Murray Gell-Mann reflects on matter’s building blocks and scientists’ resistance to new ideas (p. 24)
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Satellite data reveals that increased irrigation pressure is rapidly depleting groundwater in northern India. (p. 5)
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Logging during the last century might have driven birds in mature boreal forests toward pointier wings while reforestation in New England led to rounder wings. (p. 7)
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Samples collected from a comet’s halo suggest comets could have carried amino acids to the early Earth (p. 8)
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Reports from the meeting of the American Ornithologists' Union (p. 7)
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Researchers create a material that may one day be used to paste together bones in the body. (p. 8)
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Study suggests besides the visible plastic, smaller bits are fouling the waters (p. 9)
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U.S. greenbacks are especially effective at pocketing tiny traces of cocaine. (p. 9)
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A New Zealand tree’s peculiar leaves may have served as defenses against long-gone giant birds. (p. 10)
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Scientists find previously unknown deep-sea species that launch bioluminescent packets. (p. 10)
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Alterations in a gene called DEC2 lead to a shortened sleep period in people, mice and fruit flies. (p. 11)
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A new study finds evidence for mirror neurons in people. (p. 11)
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Violent interactions between planets may have played a key role in shaping the architecture of many extrasolar planet systems. The sun’s planetary system may have escaped or recovered from such a catastrophe. (p. 12)
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Researchers find that a strange kind of imaging relies on quantum mechanics. (p. 12)
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Estrogen therapy stymies breast cancer in some patients who have exhausted their other options, a new study finds. (p. 13)
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New drug limits bone fractures in elderly women and men fighting prostate cancer (p. 13)
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People walk in circles when landmarks and other directional cues are not available. (p. 14)
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New evidence indicates that people used fires to heat stones in preparation for making cutting instruments at least 72,000 years ago in southern Africa. (p. 15)
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(p. 4)
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(p. 4)
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(p. 28)
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Review by Laura Sanders (p. 27)
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Review by Jenny Lauren Lee (p. 27)
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P. James E. Peebles, Lyman A. Page Jr. and R. Bruce Partridge, eds. (p. 27)
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(p. 27)
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(p. 27)
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(p. 27)
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(p. 27)
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(p. 32)
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