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http://www.sciencenews.org/view/issue/id/5103
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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 12th, 2004
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Hunters of the most eagerly sought particle in high-energy physics, the Higgs boson, are gleaning fresh clues about where and how to look from a new finding about another fundamental particle called the top quark. (p. 371)
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A research team finds that a 9-year-old border collie displays a keen facility for learning word meanings, providing new support for the theory that simple types of thinking practiced by some nonhuman animals also make word learning possible in toddlers. (p. 371)
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Drinking alcohol during pregnancy can cause a range of birth defects in newborns, and researchers have now shown that, in rats, it also increases the risk of breast tumors in adult offspring. (p. 372)
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Genes that make brain chemicals may have been acquired from bacteria. (p. 372)
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Two studies of bats find that neighbors can live in virtually different worlds because their echolocation calls are tuned to detect different prey. (p. 373)
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A new version of mass spectrometry could speed the process of drug discovery by enabling more accurate screening of thousands of chemicals at once. (p. 373)
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The environmental impacts of getting a newspaper dropped on your doorstep each morning vastly outweigh those of receiving the same information via a handheld electronic device. (p. 374)
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In April, an eBay auction offered math enthusiasts the rare opportunity of linking their names with one of the most famous mathematicians of the 20th century. (p. 376)
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To limit algal blooms and the development of fishless dead zones in coastal waters, farmers and other sources of nitrate are investigating novel strategies to control nitrate runoff. (p. 378)
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Cholesterol-lowering statin drugs might work against multiple sclerosis by reducing inflammation, preliminary evidence suggests. (p. 380)
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An organic crystal's unusual molecular-trapping behavior could help drive a new hydrogen economy. (p. 380)
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More and more people are eating at fast-food restaurants, and they down significantly more calories on the days they do. (p. 381)
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A technique for rebounding and refocusing sound also works for electromagnetic waves, possibly opening new uses ranging from improving cell phone communication to treating illness. (p. 382)
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Green tea contains a broad range of compounds that detoxify dioxin. (p. 382)
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A molecular comparison of chromosome 22 in chimpanzees with its counterpart in people reveals surprisingly complex genetic differences between the two species. (p. 382)
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A robot made of DNA has taken its first steps, suggesting that such devices could eventually be used for nanoscale manufacturing. (p. 382)
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(p. 383)
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