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http://www.sciencenews.org/view/issue/id/2351
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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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January 12th, 2002
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A gene involved in body development also plays a critical role in regulating the grooming behavior of mice, a discovery that may advance the understanding of certain psychiatric disorders. (p. 20)
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Congress and the Bush administration have now agreed on unprecedented rises in funding for research and development programs. (p. 20)
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Spacecraft observations indicate that a vast, unseen halo of hot gas envelopes our home galaxy, the Milky Way, and could literally be brushing up against its nearest neighbors. (p. 21)
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Scientists looking for DNA variations in a cancer called diffuse large B-cell lymphoma have found that excess activity in certain genes may indicate whether the disease will be fatal. (p. 21)
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For nearly grown spiderlings, lingering in their mother's web instead of setting off on their own turns out to be a boon for the mom, as well as themselves. (p. 22)
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Laboratory experiments investigating the crystal structure of iron-silicon alloys at high temperatures and pressures may yield new insights into the mineral composition of Earth's core. (p. 22)
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Researchers have created a new compound that contains a palladium atom bonded in a unique way to six silicon atoms. (p. 23)
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Bacteriophages, viruses that destroy bacteria, can protect mice from bacteria that are impervious to antibiotics. (p. 23)
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The discovery that some genes encode RNA strands instead of proteins has surprised biologists. (p. 24)
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The amazingly complex tadpole now shines in ecological studies. (p. 26)
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The first signs of partial resistance to an important class of drugs called quinolones have appeared in Haemophilus influenzae, a bacterium that can cause pneumonia and meningitis. (p. 29)
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A daily regimen of the antiviral drug valacyclovir controls genital herpes vastly better than does the same medication when used only to treat outbreaks of the disease. (p. 29)
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Scientists may be able to disable the parasite that causes Chagas disease by targeting the enzyme it uses to make essential fats. (p. 29)
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Blood tests on people in Rwanda who have had HIV infections for years without symptoms of AIDS indicate that the viruses in these patients have rare mutations. (p. 29)
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Experiments that used signals from Global Positioning System satellites to precisely measure altitude above a lake's surface may pave the way for fleets of spaceborne sensors that can quickly and inexpensively monitor local and global changes in sea level. (p. 31)
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Scientists in Southern California believe they've found evidence that finally identifies the source of one of the region's largest quakes, a magnitude 7-plus temblor that struck the area on Dec. 21, 1812. (p. 31)
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The first, rudimentary implementation of a method, called Shor's algorithm, for using quantum mechanics in computations suggests that larger-scale implementations are possible and may eventually break the codes used today to protect secret messages on the Internet and elsewhere. (p. 31)
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When atoms or molecules react with a metal surface, even briefly, they can inject much more energy into surface electrons than previously realized. (p. 31)
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