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http://www.sciencenews.org/view/issue/id/6557
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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 10th, 2005
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A protein produced by nerve cells is essential for the manufacture of myelin, the fatty sheath surrounding nerve fibers. (p. 163)
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After a month of long hours of challenging work, fatigued physicians show impairments in driving and other tasks requiring constant attention and quick reactions. (p. 163)
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After a 14-month climb up a Martian hill, NASA's rover Spirit took a panoramic image of the view from the top. (p. 164)
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Positive thinking exerts a calming effect on pain-related brain areas, yielding a substantial reduction in the actual perception of pain, a brain-scan investigation suggests. (p. 164)
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Scientists have proposed a way to control the distribution of contaminants in silicon, potentially opening up the use of cheaper starting materials for making solar cells. (p. 165)
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Y-shaped nanotubes might become a common component in ultrasmall electronic circuitry. (p. 165)
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A male fish produces a burst of hormones as he fights off an intruder, but this surge isn't triggered simply by fighting. (p. 166)
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Data from the Deep Impact mission reveal that the bullet that slammed into Comet Tempel 1 on July 4 excavated material that likely hadn't seen the light of day since the birth of the solar system 4.5 billion years ago. (p. 168)
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Scientists are tracking the spread of a threatening influenza virus in birds and exploring strategies that could be used to halt a potential outbreak in people before it explodes into a global epidemic. (p. 171)
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A protein is pivotal in bringing on the psychotic attacks that beset people with porphyria, a rare inherited disease. (p. 173)
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A battery that's activated by body fluids such as saliva or urine may one day power devices ranging from disposable home health-care testing kits to emergency radio transmitters that turn on with a lick. (p. 173)
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Strong seismic activity on Venus could cause brief but detectable temperature increases high in that planet's atmosphere. (p. 174)
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A drug called valproic acid, used in combination with other medications, can ferret out HIV that is lying dormant in cells. (p. 174)
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A new federal service, offered jointly by the U.S. Environmental Protection Agency and the National Weather Service, will notify individuals, via e-mail, when the sun's cancer-causing ultraviolet radiation is forecast to be unusually high. (p. 174)
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(p. 175)
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We at Science News express our strong concern and extend our deepest sympathy to those who are suffering through the ongoing ordeal caused by Hurricane Katrina. (p. 163)
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