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http://www.sciencenews.org/view/issue/id/6867
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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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December 17th, 2005
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A host of observations suggests that Greenland's ice sheet diminished this year at a rate more than twice that seen just a few years ago. (p. 387)
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Two new analyses bring an ironic twist to the heated debate over whether badgers in Britain should be killed to prevent them from spreading tuberculosis among cattle. (p. 387)
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Researchers have identified a gene that they propose plays a major role in determining a person's skin color. (p. 388)
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A miniature chemical reactor that whips up a diagnostic tool could widen the availability of positron-emission tomography (PET) scans. (p. 388)
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Using brain-imaging technology, researchers have trained people to control activity in a pain-related brain area by using mental techniques, thus enabling them to reduce the intensity of temporary or chronic pain. (p. 390)
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A new study of light from supernovas provides additional hints that dark energy, the mysterious entity revving up the expansion of the universe, might be distributed uniformly throughout space and time. (p. 390)
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Two experimental drugs could become alternatives to warfarin and a class of other products that are used widely to protect against potentially fatal blood clots. (p. 392)
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Physicists made a stable, doughnut-shaped air bubble in water by encasing the gas ring in beads that form a stiff shell. (p. 392)
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Mathematicians have zeroed in on a new type of minimal surface based on a double helix. (p. 393)
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Changes in the atmospheric concentration of oxygen through geologic time, some gradual and some drastic, have strongly shaped evolution among many types of creatures. (p. 395)
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Researchers have determined how long a pesticide residue would remain in the environment if the microbe Pseudomonas pavonaceae didn't metabolize it. (p. 398)
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New radio telescope images of the center of the Milky Way make an even more compelling case that a supermassive black hole resides there. (p. 398)
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A computer program helps radiologists spot dangerous growths in the colon without probing inside the body. (p. 398)
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Standard 3-centimeter needles are too short to penetrate the layer of fat in the buttocks of most women and most obese men, so injected medications aimed at muscle often don't reach their targets. (p. 398)
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(p. 399)
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