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http://www.sciencenews.org/view/issue/id/2867
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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 29th, 2002
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The size, shape, and riotous variety of fossil leaves unearthed at a site in central Colorado suggest that the region may have been covered with one of the world's first tropical rain forests just 1.4 million years after the demise of the dinosaurs. (p. 403)
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Many human cancers may evade surveillance by exploiting a protein normally found on certain immune cells. (p. 403)
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A new long-term animal study of cell-phone radiation suggests that emissions don't cause cancer, but studies by a second team hint that cell phones may cause damage in other ways. (p. 404)
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New computer calculations reveal that a long-held belief about the hydroxide ion's movement in water is wrong. (p. 404)
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The natural compound inosine spurs nerve reconnection in rats that have suffered the loss of blood to parts of the brain, suggesting inosine might help people recover from a stroke. (p. 405)
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A researcher who dabbed tiny stripes on the faces and abdomens of paper wasps says that she's found the first evidence that the insects can recognize individuals by their markings. (p. 405)
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Antibiotics in sewage sludge and manure have the potential to poison plants or end up in food. (p. 406)
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Artificial organs and tissues may someday feel more like the real thing if a new, rubbery polymer supplants mostly stiff materials available today for tissue engineering. (p. 408)
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Brain-wave evidence indicates that 3- to 4-year-old children diagnosed with autism can't tell their mothers' faces from those of female strangers. (p. 408)
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Autopsy studies indicate that the insulin-producing cells of people with type II diabetes are damaged. (p. 408)
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Children who developed a type of diabetes that normally occurs only in adults suffer kidney failure, miscarriages, and death in their 20s. (p. 408)
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