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http://www.sciencenews.org/view/issue/id/45658
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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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August 1st, 2009
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Scientists seek ways to make green energy pay off (p. 24)
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For gelotophobes, even good-natured laughter can sound a lot like ridicule (p. 18)
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The odd bodies of turtles add a wrinkle to standard land-dwelling vertebrates. (p. 5)
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New simulations reveal that some of the first stars in the universe formed in pairs. (p. 7)
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The existence of a small, elderly black hole places a new upper limit on the length of any extra dimension, a new study suggests. (p. 7)
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An experimental drug may stop a deadly leukemia in its early stages, a study of mice shows. (p. 8)
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Anti-inflammatory injections of golimumab work in people with rheumatoid arthritis who failed to improve on other meds. (p. 8)
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New study finds calorie restriction delays age-related diseases in monkeys. Another study reports that an immune-suppressing drug helps elderly mice live longer. (p. 9)
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Study finds that swearing may alleviate pain. (p. 9)
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Three studies find that large collections of variants, rather than just a few key mutations, probably predispose someone to schizophrenia. (p. 10)
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A closer look at regeneration in axolotl amputees shows that tissue replacement relies on cellular “memory.” (p. 10)
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Milder winters help small, weak lambs survive but more competition for food slows growth. (p. 12)
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Researchers find a spike in carbon dioxide, along with an increase in heat, makes honeybees' enemies vulnerable. (p. 13)
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Tiny scratches in the fossilized teeth of Edmontosaurus suggest what these large herbivores ate and how they ate it. (p. 13)
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Finding could lead to new technique for making tiny wires. (p. 14)
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An exotic cousin of the proton is caught in action again. But its measured mass doesn’t match previous results. (p. 14)
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Researchers link occasional sea-surface warming in central Pacific with more, stronger hurricanes in North Atlantic. (p. 15)
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Experiments show how microscopic fungi attack minerals to begin the erosion process. (p. 15)
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Toddlers discern basic rules for using nouns and verbs at least one year before speaking in complete sentences, French brain researchers report. (p. 16)
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A chemical analysis of skeletons from Peru’s Andes Mountains suggests that cultivation of key crop made building a prehistoric civilization possible. (p. 16)
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Review by Rachel Zelkowitz (p. 30)
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Review by Sid Perkins (p. 30)
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