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http://www.sciencenews.org/view/issue/id/3084
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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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September 7th, 2002
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A vaccine that desensitizes the immune system to a protein inside blood vessels prevents some strokes in laboratory rats. (p. 147)
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In Brazilian ant colonies where a female has to fight her way to the top, she stays in power through some judicious gang violence. (p. 147)
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Twice in the past month, astronomers were given a rare opportunity to peer through the tenuous atmosphere of Pluto. (p. 148)
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The approximately 40,000-year-old skeleton of a Neandertal baby, filed and forgotten in a French museum for nearly 90 years, has been recovered by an anthropologist. (p. 148)
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Illuminated by lasers, disks no larger than red blood cells can project rotating beams bright enough to create a light show in a darkened room. (p. 149)
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Modern chimpanzees may be the offspring of survivors of an HIV-like pandemic that took place 2 million years ago. (p. 149)
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A new system could determine whether a sealed bottle of wine has turned to vinegar. (p. 150)
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Allergies in Greenland nearly doubled from 1987 to 1998. (p. 150)
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New evidence suggests that chronic lack of sleep may be as important as poor nutrition and physical inactivity in the development of chronic illnesses such as obesity, diabetes, and cardiovascular disease. (p. 152)
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Keenly aware of user frustration with the short-lived batteries in cell phones and other portable electronics, researchers are rushing to work out the bugs in tiny fuel-cell power plants that will be as small as batteries—but last a lot longer and be refuelable. (p. 155)
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A genetic mutation found only in humans first appeared around 2.8 million years ago, perhaps setting the stage for brain enlargement in the Homo lineage. (p. 157)
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Exposing children to cats or dogs at an early age may make them less prone to allergies later in life. (p. 157)
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A rare study of elderly individuals before and after the death of their spouses finds that a surprisingly large number stayed on an even emotional keel. (p. 157)
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Scientists question whether a potentially gender-bending hormone found in polluted Florida streams is responsible for masculinized female fish. (p. 157)
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Although a correction to theory last year watered down its results, further analysis of a muon experiment still provides hints of new subatomic particles. (p. 158)
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Hairlike projections that allow ears to detect sounds regenerate every 2 days. (p. 158)
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Changes in winter farming practices may help explain a puzzling drop in number of rural house sparrows in southern England. (p. 158)
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Although electrons pair up in many superconductors, there's one in which they join together in two different ways, new calculations confirm. (p. 158)
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