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http://www.sciencenews.org/view/issue/id/4903
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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 10th, 2004
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The density of a recently made film of water far exceeds that of ordinary water, suggesting that the film may be the first isolated sample of a proposed form of water thought to contribute to ordinary water's odd properties. (p. 227)
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Archaeological finds on the Mediterranean island of Cyprus indicate that people domesticated cats by about 9,500 years ago, long before cat taming achieved prominence in ancient Egypt. (p. 227)
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The presence of methane in the Martian atmosphere spotlights the possibility that there might be primitive life on the Red Planet. (p. 228)
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Life on Earth may have sprung into being with the assistance of tiny molecules that are remarkably adept at stitching together DNA in the lab. (p. 228)
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A compound that stimulates nerve-cell activity may help the brain recover from serious head injuries. (p. 229)
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High-speed videos of hummingbirds catching insects reveal that their lower bills are unexpectedly flexible. (p. 229)
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New research on anti-inflammatory medications being investigated as cancer treatments indicates that some of these drugs have secondary effects that could enhance or undermine their antitumor activity. (p. 230)
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Cells use ribonucleic acids that bind to small molecules such as vitamins to control gene activity. (p. 232)
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Although destroying dams is often presumed to restore rivers, the results of such action are actually mixed, according to recent studies. (p. 235)
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After a woman survives an initial bout with breast cancer, being physically active improves her odds of beating the disease over the long term. (p. 237)
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Getting sun could increase vulnerability to a sexually transmitted virus that may lead to cervical cancer. (p. 237)
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By controlling a boundary between oil and water, researchers have created a liquid lens that can quickly alter its shape in response to electric signals. (p. 238)
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A gene with poorly understood functions began to accumulate favorable mutations around 8 million years ago and probably contributed to brain expansion in ancient apes. (p. 238)
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Cooking emits easily inhaled pollutants that travel throughout a home and can linger for hours. (p. 238)
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Scientists have developed a DNA vaccine that stops the SARS infection in mice. (p. 238)
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(p. 239)
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