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http://www.sciencenews.org/view/issue/id/46053
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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 15th, 2009
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Scientists probe toxins, revealing the healing powers of biochemical weapons (p. 16)
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Animal embryos get some respect for their survival skills (p. 26)
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Astronomers hope type 1a supernovas will help in quest to explain dark energy (p. 22)
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A new study links the simian immunodeficiency virus to serious AIDS-like illness in a wild population. (p. 5)
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The tumor suppressor protein, p53, has three ways to protect cells from turning cancerous. A new study shows that p53 helps make microRNAs. (p. 8)
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Analysis pinpoints genes that help springtails dehydrate and tough out the winter. (p. 9)
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A single genetic modification is linked to the stature of short-legged dog breeds, new research shows. (p. 8)
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Vaccine protects against typhoid across age groups and is especially effective in young children. (p. 10)
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Spinal fluid test in people with mild cognitive impairments can predict in many cases who will develop the disease. (p. 10)
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Researchers may gain inspiration from the shell of Chrysina gloriosa, which twists light in a particular way. (p. 12)
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A new study using a high-speed camera finds the shattering of solitary drips can produce a variety of sizes. (p. 12)
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Bird’s supersized bill can switch personal air conditioning on and off, new research suggests. (p. 13)
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Nevada find contradicts long-held view of Europe and Asia as the native land of all honeybees. (p. 13)
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Simultaneous snapshots reveal that northern and southern auroras aren’t always alike. (p. 14)
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New analyses of Arctic seafloor sediments suggest floating ice debuted in the ocean at least 47.5 million years ago. (p. 14)
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Researchers have devised a way to use a laser to create strings of orderless bits for encryption. (p. 15)
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(p. 4)
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(p. 4)
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(p. 30)
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Review by Tina Hesman Saey (p. 31)
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(p. 31)
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(p. 31)
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(p. 32)
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