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http://www.sciencenews.org/view/issue/id/6718
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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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October 29th, 2005
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Men who get circumcised reduce their risk of acquiring the AIDS virus by more than half. (p. 275)
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Remains of extinct sloths unearthed in Cuba and Haiti indicate that the creatures persisted in Caribbean enclaves until about 4,200 years ago, a finding that almost absolves climate change following the last ice age as a cause for the die-offs. (p. 275)
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Along a strip of India's southeastern coastline, trees protected certain villages from last December's tsunami, while waves wiped out neighboring settlements that weren't sheltered by vegetation. (p. 276)
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A prototype fuel cell uses an enzyme from a soil microbe to generate electricity from hydrogen rather than from rare and expensive metal catalysts such as platinum. (p. 277)
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A new map that delineates small genetic differences among people may be a powerful tool for figuring out why some individuals get certain diseases and how to customize their treatments. (p. 277)
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People who suddenly ignore everything to their left after suffering a right-brain stroke display disturbed activity in uninjured parts of a widespread neural network associated with attention. (p. 278)
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Body language can influence the perception of emotion on a person's face. (p. 278)
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Scientists are using nanotechnology to develop new strategies for diagnosing and treating cancer. (p. 280)
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Facing the threat of a radioactive mess from a dirty bomb, government and industry labs are creating novel cleaning agents and fixatives to aid rescue operations and speed restoration of contaminated zones. (p. 282)
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Researchers have taken a step toward smart bandages that would indicate the presence of an infection in a wound. (p. 285)
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The fossils of plesiosaurs recently unearthed in Australia suggest that the long-necked, aquatic reptiles had a more varied diet than scientists had previously suspected. (p. 285)
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A molecule that waddles on stubby feet and another that drives on ball-like wheels demonstrate scientists' increasing control over the usually haphazard motion of molecules on surfaces. (p. 285)
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The so-called 10th planet, an object larger than Pluto that ranks as the most distant body known in the solar system, has a moon. (p. 285)
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New radar images of Saturn's smog-shrouded moon Titan show evidence of a shoreline cutting across the moon's southern hemisphere. (p. 286)
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A single dose of the antibiotic ciprofloxacin cures cholera in children as often as a 12-dose regimen of erythromycin does. (p. 286)
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(p. 287)
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