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http://www.sciencenews.org/view/issue/id/5647
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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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November 27th, 2004
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Umbilical cord blood transplants offer a viable treatment alternative for leukemia patients who don't have a matching bone marrow donor. (p. 339)
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Transparent transistors deposited on flexible sheets of plastic could find their way into computer displays embedded in car windshields and other curved surfaces. (p. 339)
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A new mathematical tool distills painting style into an array of statistics as a potential means to spot forgeries. (p. 340)
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The amygdala, an inner-brain structure that coordinates reactions to fearful sights, influences early stages of visual perception in far-removed brain regions. (p. 340)
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New observations of an oddball planetary system 150 light-years from Earth suggest that some planets either are superheavy, more than 17 times as massive as Jupiter, or that they form from disks of gas and dust that encircle not just a single star, but two starlike objects. (p. 341)
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A gene responsible for semen viscosity has evolved more rapidly in primate species with promiscuous females than in monogamous species. (p. 341)
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What keeps the 500-meter-tall dunes of China's Badain Jaran desert immobile, despite arid, windy conditions, is a previously unknown source of groundwater. (p. 341)
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The first vertebrate to ace tests of color vision at low light levels—tests that people flunk—is an African gecko. (p. 342)
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After several experimental attempts, researchers finally have verified that fighting allergens in the household can reduce symptoms of asthma. (p. 344)
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New finds of fossil penguins, as well as analyses of the characteristics and DNA of living penguins, are shedding light on the evolution of these flightless birds. (p. 346)
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Chemists have developed catalysts that spur common oxidants to quickly destroy germs, including deadly anthrax spores. (p. 348)
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Slight deviations of two Earth-circling satellites from their expected orbits appear to confirm a curious prediction from Einstein's relativity theory. (p. 348)
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The lead used in bullets and shotgun pellets can be a threat to the environment near rifle ranges but many of its hazards are manageable. (p. 350)
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Microorganisms that live in seafloor sediments deposited beneath periodically anoxic waters near the mouths of rivers could chronicle the years when those rivers flooded for extended periods. (p. 350)
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Recent excavations reveal that the city of Pompeii, famed for its burial by an eruption of Italy's Mt. Vesuvius in A.D. 79, experienced several devastating landslides in the centuries preceding its demise. (p. 350)
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(p. 351)
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