- :: Atom & Cosmos
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http://www.sciencenews.org/view/issue/id/8888
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In This Issue
- It’s written all over your face: To potential mates, your mug may reveal more than you think
- Team spirit: Working together, bacteria and other microbes can accomplish much more than they can alone. Now scientists hope to harness that ability by engineering their own microbial consortia.
- For a big view of inner Earth, catch a few…Geoneutrinos
- This week's table of contents
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September 8th, 2007
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A poorly understood virus seems to have a connection to the recent widespread demise of honeybees. (p. 147)
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For the first time, one man's genome, including both sets of chromosomes, has been decoded. (p. 147)
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The asteroid that wiped out the dinosaurs 65 million years ago was a wayward fragment from a violent collision in the asteroid belt. (p. 148)
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Axons are not simply passive carriers of electrical signals in the brain, but influence how neurons fire. (p. 148)
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Cells that cause inflammation in allergic skin reactions to poison ivy also produce a protein that subdues the reaction a few days later. (p. 149)
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The age-old mystery of sand dunes that produce loud, thrumming noises is explained by a new theory that involves a resonant layer of dry sand. (p. 149)
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Diagnosis of bipolar disorder in kids and teenagers has dramatically increased since 1994, raising concerns that this severe mood disorder is being overdiagnosed. (p. 150)
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A massive scientific field study in Mexico City, along with lab experiments and computer simulations, show that pollution from the world's megacities has a global impact. (p. 152)
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Detailed explorations of the human genome are showing that individual genes may have complex structures, and that much of what had been called junk DNA is not junk at all. (p. 154)
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The rings of Uranus are now tilted edge on to Earth, revealing small, inner rings made of fine dust. (p. 157)
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The virus that causes AIDS can also cause dementia, by both killing mature brain cells and blocking the creation of new ones. (p. 157)
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The ability of men 55 and older to father children may have had evolutionary effects that caused both sexes to develop longer lifespans. (p. 157)
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Some viruses create cocoonlike refuges in the cells they invade, shielding them from the cell's defense mechanisms. (p. 157)
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Seasonal oxygen shortages in coastal waters, increasing in severity because of pollution, may impair fish reproduction. (p. 158)
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Orangutans try to communicate by gesturing when they think they're being misunderstood, much as people do when playing charades. (p. 158)
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Epilepsy patients who experience multiple auras before a seizure, usually considered poor candidates for corrective brain surgery, might benefit from by a new brain scan procedure. (p. 158)
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Some laser printers emit substantial amounts of potentially hazardous nanoscale particles. (p. 158)
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(p. 159)
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Book Review: Food Bites: The Science of the Foods We Eat
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Book Review: Don’t Sleep, There Are Snakes: Life and Language in the Amazonian Jungle
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Planet Earth: An Illustrated History
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