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http://www.sciencenews.org/view/issue/id/2374
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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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January 19th, 2002
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Variants of a gene linked to mouse aging are more prevalent in elderly people than in newborns, suggesting that the gene influences human aging or specific age-related illnesses. (p. 36)
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Researchers have discovered a way to make certain silicon wafers explode on command. (p. 36)
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A sizable minority of gamma-ray bursts may originate relatively nearby, in galaxies within 325 million light-years of our own. (p. 37)
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Swedish researchers identified hallucinations and other psychotic symptoms in 10 percent of a sample of 85-year-olds, a much larger figure than previously reported for elderly people. (p. 37)
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Using long and abundant water-soluble proteins secreted by bioengineered mammal cells, scientists have spun the first artificial spider silk demonstrated to have some of the remarkable mechanical properties of the real thing. (p. 38)
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A comparison of Latino, white, and Chinese-American smokers suggests that people of East Asian descent are apt to clear nicotine from their blood more gradually than the other smokers do, thereby staving off a craving for the next cigarette. (p. 38)
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On Jan. 10, Energy Secretary Spencer Abraham notified Nevada's Governor Kenny Guinn by telephone that he intends to recommend that southwestern Nevada's Yucca Mountain site serve as the nation's long-term geological depository for high-level nuclear waste. (p. 39)
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The notorious Pfiesteria microbes, implicated in fish kills and human illness along the mid-Atlantic U.S. coast, have turned up in Norway. (p. 39)
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A gene thought by some scientists to foster a bold, novelty-seeking personality, as well as attention-deficit hyperactivity (ADHD), apparently spread substantially in human populations over roughly the past 40,000 years. (p. 40)
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Ancient engravings found in South Africa support the theory that humans began to think and behave in symbolic ways a surprisingly long time ago. (p. 40)
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In the world of pipefish, which are cousins of sea horses, sexual selection may reverse, wherein females battle each other for male favor through sexual selection. (p. 40)
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A budgerigar's head literally glows for its mate, and both males and females of this parrot species prefer to court radiant partners. (p. 40)
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Searching for signs of subsurface water on the Red Planet and analyzing the elemental and mineral composition of surface rock, NASA's Mars Odyssey spacecraft begins its main mapping mission next month and may shed light on several enduring puzzles about the planet. (p. 42)
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By replicating ancient materials with their own hands, researchers are gaining new insights into details of Egyptian faience manufacture that have been lost for thousands of years. (p. 45)
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Overactivity of a tumor-suppressing gene shortens the lifespan of mice. (p. 47)
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Dolly, the world's first cloned mammal, has developed arthritis, and two biotech firms have turned to cloning in their attempt to create pigs with organs that human bodies won't reject when transplanted. (p. 47)
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Starting next week, the print edition of Science News will have a new appearance. (p. 35)
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