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http://www.sciencenews.org/view/issue/id/8227
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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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February 17th, 2007
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Researchers have uncovered evidence of a chimpanzee stone age that started at least 4,300 years ago in West Africa. (p. 99)
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Using a tiny mesh cylinder called a stent, doctors can prop open narrowed arteries in the brain much as they do in the heart. (p. 99)
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Infrared observations have depicted the dusty vestiges of a planetary system dancing around a dead star. (p. 100)
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A new, faster way to identify cancer-causing mutations in the DNA of tumor cells may pave the way for the next generation of custom-tailored cancer therapies. (p. 100)
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The lumps of glass created when lightning strikes sandy ground can preserve information about ancient climate. (p. 101)
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A new approach has enabled researchers to prevent cleft palate in mice genetically engineered to develop that birth defect. (p. 101)
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Big Mediterranean bats snatch migrating songbirds out of the night sky in spring and fall. (p. 102)
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With a new arsenal of mathematical approaches, neuroscientists are unraveling the surprisingly few steps messages take to traverse the vast networks of brain cells underlying thought and perception. (p. 104)
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In a 10-year, global effort, researchers exploring the unknowns of marine life have found bizarre fish, living-fossil shrimp, giant microbes, and a lot of other new neighbors. (p. 107)
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A new survey indicates that people discern the presence or absence of a mental life in others by assessing two general dimensions of thought. (p. 109)
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A recently developed device, known as a microshutter, will allow the proposed James Webb Space Telescope to simultaneously record the spectra of light from 100 galaxies. (p. 109)
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Although terror-attack survivors often rebound emotionally, their bodies stay on heightened alert long after such traumas, according to tests of witnesses to the 1995 Oklahoma City bombing. (p. 110)
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A new compound that inhibits the activity of the alertness-promoting brain peptide orexin shows promise as a potential sleeping pill. (p. 110)
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Just a couple of small genetic changes in a pandemic flu virus prevented it from passing efficiently between lab animals. (p. 110)
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The Cassini spacecraft has imaged a huge cloud that engulfs most of the north pole of Saturn's icy moon Titan and could be a source of the moon's hydrocarbon lakes. (p. 110)
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(p. 111)
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