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http://www.sciencenews.org/view/issue/id/4947
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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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April 24th, 2004
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To combat environmental degradation and encourage sustainable use of resources off the nation's shores, the U.S. government needs to double its investment in marine research, integrate management of coastal and inland ecosystems, restructure agencies that influence the oceans' health and productivity, and take other far-reaching steps, according to a commission created by Congress. (p. 259)
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A newfound cue ball effect in nanometer-scale crystals of a semiconductor compound may lead to highly efficient solar cells made from such nanocrystals. (p. 259)
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Microscopic, carbon-lined tubes in lava that erupted onto the ocean floor about 3.5 billion years ago were etched by microbes, a number of signs suggest. (p. 260)
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The population of prime numbers includes an infinite collection of arithmetic progressions. (p. 260)
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Ultraviolet light can curb graft-versus-host disease, a common complication of bone marrow transplants, a study of mice shows. (p. 261)
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Materials scientists are designing tough, microscopic drug-delivery vesicles that could reach their targets intact and release their cargoes on cue. (p. 261)
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Contrary to predictions, Sedna, the most distant object known in the solar system, does not appear to have a moon. (p. 262)
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Research into fish behavior often reveals ways that bait designers can trick a fish into biting odd-looking lures, but angler appeal can also be an important marketing consideration. (p. 264)
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Computers are starting to give mathematicians the lab instrument that they have been missing. (p. 266)
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Tiny male spiders of a species common to the southeastern United States routinely remove one of their two oversize external sex organs, enabling them to run faster and longer. (p. 269)
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Closing in on Saturn after a 7-year journey, the Cassini spacecraft has discovered two storms merging on the ringed planet, only the second times that scientists have observed such a phenomenon. (p. 269)
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A fresh analysis of 2002 accelerator data finds a third instance of a type of breakdown of subatomic kaons that's not supposed to happen so often, suggesting that shadowy, hypothetical particles predicted by a theory called supersymmetry may be influencing kaon behavior. (p. 269)
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People who have a particular variant of a single gene are at a disproportionate risk of oral cancer if they both smoke and drink. (p. 269)
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Aided by a cosmic magnifying glass, astronomers may have found the most distant galaxy known, a body that appears to reside 13.2 billion light-years from Earth. (p. 270)
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Nanotechnologists have created a remarkably effective liquid-repelling surface that can also become, at the flick of a switch, liquid-attracting. (p. 270)
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Physicists at a German particle collider unveiled evidence of a new five-quark particle. (p. 270)
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(p. 271)
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