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http://www.sciencenews.org/view/issue/id/7076
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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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February 25th, 2006
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Some bacteria have evolved an enzyme that enables them to escape the body's defenses. (p. 115)
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If a large earthquake struck Rome, ground motions could rock the city for up to a minute, threatening many of the city's ancient landmarks. (p. 115)
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A 260,000-year-old partial skeleton previously found in China represents the largest known female among human ancestors and underscores the ancient origins of large, broad bodies adapted for survival in cold conditions. (p. 116)
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High levels of a stress hormone in newly pregnant women might make them more likely to have miscarriages. (p. 116)
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A two-step approach that converts a common plastic into a biodegradable polymer may cut the number of packing peanuts and Styrofoam cups that end up in landfills. (p. 117)
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Quantum physics enables a computer to arrive at correct answers without actually running, a new experiment shows. (p. 117)
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A hormone that's been tied to promoting hunger may also play a pivotal role in creating and retrieving memories, according to a new study in mice. (p. 118)
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The Cassini spacecraft recently captured an image of the most powerful storm ever seen on Saturn. (p. 118)
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Debates on the conflict between evolution and intelligent design are taking place not only in the courts but also in state legislatures and even among members of local school boards, where topics include curricula, textbooks, and the definition of science itself. (p. 120)
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Physical exercise encourages brains to function at an optimum level, even if they're damaged or diseased. (p. 122)
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Just a few diesel-fueled vehicles account for much of traffic-related soot. (p. 125)
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Fish cells destined to become sperm can become eggs when transplanted into larvae. (p. 125)
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Researchers have synthesized a membrane that may purify hydrogen more efficiently than conventional chemical methods do. (p. 125)
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Proton radiation causes worse breaks in DNA than researchers had expected. (p. 125)
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State and federal governments spent $1.4 billion in 2004 on conserving endangered and threatened species, with one-third of that sum going to protect fish. (p. 126)
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Taking advantage of some gravitational sleight of hand, astronomers have found indirect evidence of the smallest planet known to exist outside the solar system. (p. 126)
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Consumers make better decisions about major purchases if they heed the power of their unconscious minds. (p. 126)
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An herbal supplement used by 2.5 million men in the United States has failed to outperform a dummy capsule taken for urinary problems. (p. 126)
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(p. 127)
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