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http://www.sciencenews.org/view/issue/id/7463
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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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June 24th, 2006
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New observations confirm that magnetic fields provide matter with the last push to plunge into a black hole. (p. 387)
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Condom use reduces a woman's risk of being infected with human papillomavirus and of developing precancerous growths on the cervix. (p. 387)
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Coral reef fish use smart-shopper techniques of looking for satisfied customers before choosing a small fish to provide cleaning services. (p. 388)
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New research compares the long-term ecological impact of human activities in estuaries and coastal seas on three continents. (p. 388)
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The aging brain reorganizes in ways that foster emotional stability and a tendency to favor positive emotions over negative ones. (p. 389)
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Bacteria can break down a common flame retardant into more-toxic forms. (p. 389)
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Remnants of a spider web embedded in ancient amber suggest that some spiders' diets haven't changed much in millions of years. (p. 390)
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What a person eats, what chemicals he or she is exposed to, and other features of a person's environment chemically modify chromosomes, thereby changing how genes are ultimately expressed. (p. 392)
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The Damaraland mole rat may be less famous than its naked cousin, but both have some of the oddest social structures found in a mammal. (p. 394)
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A 15-year study conducted in the New York City area charts how air concentrations of different types of allergy-causing pollen vary throughout an average year. (p. 397)
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Mustard and other herbal remedies can thwart turf attacks by root-feeding roundworms. (p. 397)
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Synthetic steroids used to beef up cattle can impair reproduction in female fish and even give them macho physical traits. (p. 397)
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A sobering cup of coffee could provide protection against cirrhosis, a liver-scarring disease common in alcoholics. (p. 397)
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The popular dietary supplement glucosamine doesn't cause insulin resistance, the precursor of type 2 diabetes. (p. 398)
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Researchers have linked small variations in three genes to type 2 diabetes. (p. 398)
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Two experimental drugs can lower blood sugar significantly in people with type 2 diabetes. (p. 398)
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People taking antidepressant medication might be at increased risk of developing diabetes. (p. 398)
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(p. 399)
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