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http://www.sciencenews.org/view/issue/id/8502
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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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May 12th, 2007
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Cancer of the throat and tonsils can arise from infection with a sexually transmitted virus. (p. 291)
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Intensive meditation training boosts a person's control over attention and expands a person's ability to notice rapidly presented items. (p. 291)
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Light can be made to act as if it's composed of particles, waves, or something in between. (p. 292)
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Scientists have found a master gene that allows tissue-regenerating stem cells to retain their regenerative capacity. (p. 292)
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Astronomers have discovered the brightest stellar explosion ever observed, and it could be the first example of a rare type of supernova involving a freakishly massive star. (p. 293)
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Flying bat generate lift and thrust with their wings much differently than birds do. (p. 293)
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A consortium of museums and laboratories has unveiled plans to create a free, Web-based Encyclopedia of Life with an entry for every living species. (p. 294)
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Scientists have been searching about 30 years for a single nucleus of helium made from antimatter, and although the discovery would imply that whole antimatter galaxies exist, the researchers' time could be running out. (p. 296)
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Birds apparently cheat chance when it comes to laying eggs that contain sons or daughters. (p. 298)
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Studies in mice suggest that it could be possible to screen blood for early, asymptomatic Alzheimer's disease. (p. 301)
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In breast cancer patients, practicing yoga appears to reduce both depression and biochemical markers of inflammation. (p. 301)
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A compound that helps keep cells organized and stitched into tissues may play a role in the survival of cancer cells that have seeded distant tissues in the body. (p. 301)
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A dietary supplement combo boosts older adults' performance on simple mental tests. (p. 301)
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Prisoners killed by lethal injection may be conscious and experience pain and burning sensations while they asphyxiate. (p. 302)
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A family of mites may be the first animal lineage shown to have abandoned sexual reproduction and then reevolved it millions of years later. (p. 302)
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(p. 303)
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