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http://www.sciencenews.org/view/issue/id/2610
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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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April 6th, 2002
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Two research groups have identified all the genes in rice, the world's most important crop. (p. 211)
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A new route to materials harder than diamond may have opened with the surprising finding that the rare metal osmium resists compression better than diamond does. (p. 211)
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A large proportion of big-city police officers suffers from insomnia and other serious sleep problems that stem from chronic work stress. (p. 212)
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An unusual sex attractant has turned up in an analysis of sea lampreys, and it may inspire new ways to defend the Great Lakes against invasive species. (p. 213)
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Scientists have created transgenic chickens able to produce foreign proteins—and, potentially, pharmaceuticals—in their eggs. (p. 213)
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New research suggests that drinking arsenic-laden water can produce dangerous narrowing in the carotid artery, which channels blood through the neck to the brain. (p. 214)
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Researchers have created tiny daisies as a demonstration of a new technique that creates three-dimensional structures from carbon nanotubes. (p. 214)
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Analyzing an intriguing variant of the familiar game of 20 questions provides insights into Internet communication. (p. 216)
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Researchers around the world are catching on to the idea of using satellites to predict where diseases may strike. (p. 218)
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A blood-clotting protein called fibrin seems to exacerbate the regrowth problems that plague severed nerves. (p. 221)
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Chemists have created the first compounds containing both uranium and noble gases. (p. 221)
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A giant panda that upends itself into a handstand may be sending a message that it's one big bamboo-thrasher and not to be messed with. (p. 221)
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Scientists can now explain how the tongue tastes the amino acids in proteins. (p. 221)
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Danish researchers analyzing satellite observations of remote Tobias Island, discovered in 1993 off the northeastern coast of Greenland, have stumbled upon a new group of small islands nearby. (p. 222)
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Siberian sites previously thought to have been bases for early human excursions into North America may only date to about 11,300 years ago, when people have traditionally been assumed to have first reached Alaska. (p. 222)
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New radiocarbon evidence indicates that, beginning around 11,000 years ago, human hunters contributed to North American mammal extinctions that had already been triggered by pronounced climate shifts. (p. 222)
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