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http://www.sciencenews.org/view/issue/id/2527
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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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March 9th, 2002
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In a bench-top experiment, atomic nuclei may have fused inside rapidly imploding bubbles of vapor in a liquid bombarded by sound waves, but many scientists find the evidence for bubble fusion unconvincing. (p. 147)
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An analysis of trace elements found in a variety of meteorites suggests that most of the heavenly objects that rained hell on the inner solar system about 3.9 billion years ago were asteroids, not comets. (p. 147)
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Fall foliage that collects in stagnant waterways could release significant doses of a highly toxic form of mercury, which has the potential to accumulate in fish living far downstream. (p. 148)
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Astronomers have for the first time found evidence of large amounts of frozen water in the subsurface of Mars. (p. 149)
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Analysis of DNA from families whose women have been beset by uterine growths reveals a mutation that can predispose women to these so-called fibroids. (p. 149)
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A controversial new genetic analysis concludes that Homo sapiens evolved by expanding out of Africa in multiple waves beginning at least 600,000 years ago and then interbreeding, rather than totally replacing close relatives such as the Neandertals. (p. 149)
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The community of soil microbes may live hidden in the ground, but it still changes when there's more ultraviolet radiation above. (p. 150)
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The newly revealed three-dimensional structures of proteins called ion channels reveal the secrets of their crucial function. (p. 152)
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A small band of researchers wants to resuscitate the ideas of Egon Brunswik, a brilliant but tragic psychologist who died almost 50 years ago. (p. 155)
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Heavy snoring may contribute to the development of hyperactivity and attention problems in some children, especially boys age 8 and younger. (p. 157)
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The stomach may be able to "taste" bitter substances. (p. 157)
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A catastrophic outpouring of water—four times the volume contained in Lake Tahoe—may have gushed from fissures near the equator on Mars as recently as 10 million years ago. (p. 157)
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Two studies came to opposite conclusions on whether multiple-drug regimens known as highly active antiretroviral therapy (HAART) for people with AIDS also contribute to heart trouble. (p. 158)
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Genetic differences among people infected with HIV might help identify the 5 percent of patients who will suffer allergic reactions when given the antiretroviral drug abacavir. (p. 158)
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Three potential drugs in development rely on novel tactics for attacking the virus that causes AIDS. (p. 158)
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Just a few days after the National Institutes of Health announced it was canceling a large AIDS-vaccine trial, researchers reported preliminary results from a new vaccine that appears safe. (p. 158)
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