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http://www.sciencenews.org/view/issue/id/9319
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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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January 26th, 2008
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The first spacecraft to visit Mercury in 33 years imaged 25 percent of the crater-pocked surface that had never before been seen close-up. (p. 51)
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The first global accounting finds rich and middle-income nations stomping heavy footprints on poorer ones. (p. 52)
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Assembly of the first human-made microbial genome could pave the way for making microbes with synthetic DNA. (p. 52)
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Microscopic gratings that select scattered X rays might improve luggage screening and cancer detection. (p. 53)
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Two new studies provide evidence for the longstanding suspicion that certain viral infections early in life promote the development of schizophrenia and related psychotic disorders. (p. 53)
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A parasitic worm transforms ants into walking tropical berries. (p. 54)
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Weight-loss stomach surgery in obese people with type 2 diabetes sends the disease into remission in some patients. (p. 54)
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Tissues printed with an ink-jet could provide patches for damaged organs, new cell-based materials for drug testing, new ways to probe cellular communication, living sensors, or even fuel cell–type batteries. (p. 56)
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Scientists tracking H2O's highs and lows are finding new clues as to how and why the familiar substance is so odd. Recent research, for example, suggests that water may exist in two distinct liquid phases at ultralow temperatures. (p. 58)
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Protecting acacia trees from large, tree-munching animals sets off a chain of events that ends up ruining the trees' partnership with their bodyguard ants. (p. 61)
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The Ediacaran fauna were as varied as all animals in existence today and, more impressively, as in the Cambrian, report paleontologists. (p. 61)
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Studies finding beneficial effects of antidepressant drugs for depressed patients get published far more often than do studies that uncover no antidepressant benefits. (p. 61)
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People who experienced serious stress reactions shortly after the September 11, 2001, terrorist attacks also displayed markedly elevated rates of new heart and blood vessel ailments over the next 3 years. (p. 61)
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A deformed disk around a young star may have gotten its swept-back appearance as the result of a collision with a dense gas cloud. (p. 62)
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Astronomers have discovered an extraordinarily rare double cosmic mirage. (p. 62)
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Astronomers have found a quartet of stars packed into a region smaller than Jupiter's orbit around the sun. (p. 62)
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(p. 63)
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