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http://www.sciencenews.org/view/issue/id/31948
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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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May 24th, 2008
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The way genes are packaged by "epigenetic" changes may play a major role in the risk of addiction, depression and other mental disorders.
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The virtual world of Second Life offers new ways to do and learn about real science.
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The inaugural World Science Festival kicks off in New York May 28 and features a variety of events celebrating the role of science in all aspects of modern life, culture and the arts.
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Epigenetic changes can be undone in some circumstances.
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A new robotic lander will search the north polar region of Mars for habitability.
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An ancient human relative that lived more than 1 million years ago possessed huge jaws and teeth suited to eating hard foods but actually preferred fruits and other soft items, a new study finds.
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Taxing memory training produces at least short-term increases in a critical type of intelligence.
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Researchers report restoring vision to people with a rare, genetic form of blindness. A different technique helped blind mice see again and could bring back some sight in people with macular degeneration, retinitis pigmentosa or other blinding diseases. (p. 8)
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A genetic variation that increases levels of a blood-building protein also ups the risk of developing complications from diabetes.
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High blood pressure often goes untreated in people 80 and over, but a new study suggests that treatment extends survival.
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Adults may be stuck with the fat they have. A study suggests the number of fat cells doesn't change with weight gain or loss.
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By anchoring an enzyme-inhibiting molecule to a cell membrane, researchers have designed a potential skeleton for a new Alzheimer's treatment.
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Missing links in ecosystems disrupted by extinctions could be restored by introducing species that perform the same function, new field experiments suggest.
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Although the human ear can't detect it, bats make astonishingly loud noises while hunting.
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Eating less red meat and dairy may do more to reduce food-associated greenhouse gas emissions than shopping locally.
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Insects and other animals that regulate their body temperature externally may be especially vulnerable as the world warms.
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If cosmologist Will Percival of the University of Portsmouth in England is right, the universe will end about 60 billion years from now, when every molecule and atom will be torn asunder by a mysterious entity that opposes gravity’s pull and turns it into a cosmic push.
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Researchers have the first observational hint for the existence of an ejected supermassive black hole, fired by a gravitational rocket from the core of the galaxy in which it formed.
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A new type of electronic component could shrink computer chips and make them more powerful. (p. 13)
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Musical theorists see inuitive links between musical chords and geometries.
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