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http://www.sciencenews.org/view/issue/id/5149
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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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June 26th, 2004
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California ground squirrels broadcast an infrared signal when confronting a rattlesnake. (p. 403)
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The discovery of what appears to be a new subatomic particle with bizarre properties is challenging theorists' understanding of how matter behaves. (p. 403)
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Ancestors of Neandertals that lived at least 350,000 years ago heard the same range of sounds that people today do, suggesting that the ability to speak arose early in the Stone Age. (p. 404)
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A protein called Twist, which orchestrates gene activity in cells, facilitates the spread of some breast cancers. (p. 404)
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A boy born with extra-large muscles has mutations in a gene regulating muscle growth. (p. 405)
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An improved material moves magnetic refrigeration one step closer to commercial reality. (p. 405)
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Certain compounds that hinder cells from destroying waste proteins can produce symptoms of Parkinson's disease in rats. (p. 406)
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Falling reservoir levels in the western United States are just one symptom that the region is suffering through a drought that may be the worst to strike in the past 500 years. (p. 406)
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Butterflies and moths are causing scientists to devise a broader definition of migration and this has raised some old questions in new ways. (p. 408)
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The Japanese concept of amae, in which one person presumes that another will indulgently grant a special request, may apply to different forms of behavior at different ages, even in Western countries. (p. 411)
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The drug exenatide stabilizes and can reduce blood sugar in diabetes patients. (p. 413)
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An experimental drug fashioned from the toxin of the puffer fish can suppress pain in cancer patients. (p. 413)
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Using compounds that disrupt the interface of two viral proteins might present a novel strategy for combating viruses, a study of herpes suggests. (p. 413)
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The foot hairs of geckos and other creatures that can walk on ceilings may be microscopic because only such slender hairs offer optimal adhesion, regardless of shape. (p. 414)
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Operating an extensive global network of marine parks in which fishing and habitat-stressing activities are restricted would probably be more affordable for governments than continuing to subsidize struggling fisheries at current levels. (p. 414)
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The first experiment to create neutrinos in an accelerator and then beam them a long distance has found a long-awaited, new form of evidence that those fundamental particles weigh something. (p. 414)
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After people practice a hand-eye coordination task, electrical activity in specific areas of the brain during sleep reflects neural processes involved in learning to perform that task better. (p. 414)
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(p. 415)
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