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http://www.sciencenews.org/view/issue/id/9523
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In This Issue
- Ultramassive: as big as it gets: A black hole can consume anything in its path. These monsters can become huge — but perhaps only so huge.
- Body In Mind: Long thought the province of the abstract, cognition may actually evolve as physical experiences and actions ignite mental life
- This week's table of contents
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March 29th, 2008
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Athletes' genetic makeup may allow them to beat anti-doping tests. (p. 195)
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NASA's Cassini spacecraft had a close encounter with the giant vapor plume gushing from Saturn's tiny moon Enceladus. (p. 195)
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Chemical fireworks in the brain's reward system explode in response to calories, independent of flavor, suggests a new study of mice. (p. 196)
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Excavations of a cave in northern Spain have yielded a fossil jaw and tooth that provide the first solid evidence that human ancestors reached Western Europe more than 1 million years ago. (p. 196)
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When dehydrated, the larvae of an African fly replace the water in their cells with a sugar, which solidifies and helps keep cellular structures intact. (p. 197)
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Scientists establish pond water as the natural environment of Mycobacterium ulcerans, the cause of the skin disease Buruli ulcer. (p. 197)
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Mice with a Parkinson's disease–like condition benefited from receiving new nerve cells made through therapeutic cloning of their own cells. (p. 198)
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The first big family tree presenting the history of fungus-growing ants shows the leaf-cutters as the newest branch, and a very recent one at that. (p. 198)
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Fathers share more than genes with their children. Where a man works, the chemicals he is exposed to, and even his age can leave a medical legacy for future children. (p. 200)
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Science and cooking have gotten intimate, resulting in a new understanding of how molecules are transformed into food and how food is transformed by the body. (p. 202)
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The alkalinity of diets rich in potassium—usually a reflection of heavy fruit and vegetable consumption—helps preserve muscle. (p. 205)
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By 6 million years ago, upright human ancestors had evolved a hip design that remained stable for perhaps the next 4 million years, until the appearance of hip modifications in Homo erectus. (p. 205)
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A twisted joint might have made all the difference to scurrying crabs as they diverged from their clunky lobsterlike brethren. (p. 205)
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A new computational tool can identify engineered bacteria by finding the genetic "fingerprints" that distinguish altered bacteria from natural ones. (p. 206)
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A more efficient material that converts heat into electricity could make a new kind of solar panel possible. (p. 206)
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Observations by the Cassini spacecraft hint that Saturn's smog-shrouded moon Titan may harbor a global ocean of water and ammonia 100 kilometers below its surface. (p. 206)
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(p. 207)
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Science & the Public
Oct 12th 2008
Comment
Oct 10th 2008
Math Trek
The U.S. News & World Report rankings of colleges and universities are largely arbitrary, according to a new mathematical analysis. Oct 3rd 2008
The U.S. News & World Report rankings of colleges and universities are largely arbitrary, according to a new mathematical analysis. Oct 3rd 2008
Natural History of the Point Reyes Peninsula
Univ. of California, 2008, 366 p., $24.95
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Univ. of California, 2008, 366 p., $24.95
Buy now | More Books
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