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http://www.sciencenews.org/view/issue/id/6355
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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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July 9th, 2005
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As identical twins go through life, environmental influences differently affect which genes are turned on and which are switched off. (p. 19)
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A newly discovered planet beyond the solar system has the most massive core of any planet known. (p. 19)
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Years of harvesting the larger plants of a Himalayan wildflower used in traditional medicines may be driving the evolution of a stubbier plant form. (p. 20)
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Depressed patients recovering from heart attacks receive big heart-health benefits by taking prescribed doses of the antidepressant drugs known as selective serotonin reuptake inhibitors. (p. 20)
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Improvements in the techniques used to hydrogenate vegetable oils could soon fill store shelves with food products containing smaller percentages of unhealthful trans fats. (p. 21)
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A new model suggests that some fast-growing, egg-shaped lakes in Alaska expand when their permafrost banks melt and slump in tiny landslides. (p. 21)
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A 372-kilogram copper projectile released from NASA's Deep Impact spacecraft successfully slammed into Comet Tempel 1 on July 4, producing some heavenly fireworks. (p. 22)
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Many geophysical studies, including analyses of deep-traveling seismic waves and computer simulations of flowing molten rock deep beneath Earth's crust, are providing evidence that mantle plumes actually exist. (p. 24)
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Sleep paralysis, a kind of waking nightmare experienced by people in all cultures, sometimes plays a key role in post-traumatic stress disorder and panic attacks and contributes to widespread beliefs in various spirits and supernatural beings. (p. 27)
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Aging of blood-producing stem cells could be responsible for the relatively high incidence of infections and myeloid leukemia in the elderly. (p. 29)
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Using strands of DNA as movable type, scientists have created a miniaturized printing technique for mass-producing medical diagnostic chips. (p. 29)
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The burned-out cinder left behind when a massive Milky Way star exploded recently underwent its own outburst. (p. 30)
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A new analysis links dutiful fatherhood in prairie voles to a stretch of DNA once dismissed as meaningless. (p. 30)
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Brain surgery for people with severe epilepsy keeps many of these patients free of seizures for decades. (p. 30)
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(p. 31)
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