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http://www.sciencenews.org/view/issue/id/3451
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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 4th, 2003
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The addition of carbon nanotubes to a ceramic material dramatically improves its fracture resistance. (p. 3)
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Analyses of ancient sulfide minerals and the modern organisms that create sulfides are giving scientists a better idea of what Earth's atmosphere and oceans may have been like billions of years ago. (p. 3)
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Spiny lobsters are the first animals without backbones to pass tests for the orienteering power called true navigation. (p. 4)
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People who display exceptional recall for lists of information often employ an ancient learning strategy that engages brain areas considered crucial for spatial memory and navigation. (p. 4)
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Whether it comes from coffee or another source, caffeine causes a troubling rise in one biological indicator of heart health. (p. 5)
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Injections of an immune system protein called interleukin-4 can alleviate skin problems in people with psoriasis. (p. 5)
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Global gravity maps compiled from data painstakingly gathered during the last 30 years have now been rendered obsolete by a pair of satellites that were launched just last March. (p. 6)
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A small region within the brainstem creates the normal breathing rhythm. (p. 8)
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Wildlife officials in Hawaii are investigating unconventional pesticides to eradicate invasive frogs—or at least to check their advance. (p. 11)
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A cancer vaccine fashioned from a piece of a compound called proteinase-3 shows promise against leukemia. (p. 13)
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A new oral drug called ICL670 works as well as an injectable treatment in relieving iron overload in the blood. (p. 13)
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Researchers have taken a step toward using carbon nanotubes as electron sources in devices such as high-resolution electron microscopes. (p. 14)
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Two umbilical-cord-blood transplants may work better than one for cancer patients. (p. 14)
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Observing a black hole and its visible companion star caroming through our galaxy, astronomers have found the best evidence to date that stellar-mass black holes are born during supernova explosions. (p. 14)
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A brain-imaging study indicates that visual learning intensifies activity in a specific part of the neural gateway for information transmitted from the eyes. (p. 14)
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