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http://www.sciencenews.org/view/issue/id/3320
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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 23rd, 2002
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A vaccine fashioned from a protein found on human papillomavirus-16 protects women from long-term viral infections that can lead to cervical cancer. (p. 323)
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On average, a small asteroid slams into Earth's atmosphere and explodes with the energy of 1,000 Hiroshima-size blasts once every thousand years or so, a rate that is less than one-third as high as scientists previously supposed. (p. 323)
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Genetic studies have moved the origins of dog domestication from the Middle East to East Asia and suggest that the first people to venture into the Americas brought their dogs with them. (p. 324)
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Dogs may have acquired an innate ability to understand human body language after they were domesticated. (p. 324)
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Researchers studying the crystalline properties of radioactive plutonium have discovered the first plutonium-based superconductor. (p. 325)
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Researchers investigating an unfolding massive epidemic of arsenic poisoning in Bangladesh say they have evidence that local irrigation practices may be contributing to the problem. (p. 325)
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Pointing a ground-based telescope at Jupiter's moon Io, astronomers have recorded the most powerful volcano ever observed in the solar system. (p. 326)
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Subtle variations among people's immune genes may largely account for radically different outcomes when people get a strep infection. (p. 326)
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A nearly toothless fossil jaw found in France has reignited scientific debate over whether the skeletal remains of physically disabled individuals show that our Stone Age ancestors provided life-saving care to the ill and infirm. (p. 328)
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Researchers are racing to understand the chemical processes used during the past 2 centuries to make photographs before digital-imaging techniques take over completely. (p. 331)
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Scientists have identified a gene that seems to protect against some common breast cancers. (p. 333)
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An epidemiological study provides evidence that sperm concentrations in men residing in rural areas are significantly lower than those of men living in urban centers. (p. 333)
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A protein on nerve cells appears to be the key to developing morphine addiction. (p. 334)
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Scientists have scanned the brain of a man who had great difficulty playing a tune and showed that his brain doesn't react normally to music. (p. 334)
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In people with Huntington's disease, the brain tries to replace dying nerve cells. (p. 334)
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A subtle change in a gene encoding a brain chemical may give some people better memory skills than others. (p. 334)
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