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http://www.sciencenews.org/view/issue/id/2145
November 3rd, 2001
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The tightly packed genomes of two puffer fish species have been deciphered. (p. 276)
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A long-term study uncovered family factors that influence the mental development of children with biologically based disabilities, as well as evidence of increasing stress among parents as their kids with disabilities approach adolescence. (p. 276)
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Astronomers claim that for the first time, they've observed energy extracted from a black hole, or more precisely, from the tornadolike swirl of surrounding space that a spinning black hole drags along with it. (p. 277)
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Blood pressure at the high end of what is defined as the normal range is closer to "high" than to "normal" in terms of risk of associated heart disease. (p. 277)
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Young birds that have never migrated before may take a cue from the magnetic field to fatten up before trying to fly over the Sahara. (p. 278)
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A new analysis of ancient seawater shows that the ocean's chemistry has fluctuated over the last half-billion years. (p. 278)
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Using exploding wires to make low-energy X-rays, a novel, high-resolution camera snaps X-ray pictures of millimeter-scale or larger objects—such as full insects—in which features only micrometers across show up throughout the image. (p. 279)
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A protein called macrophage migration inhibitory factor, or MIF, may play a role in Crohn's disease, a painful gut ailment. (p. 279)
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Rat experiments indicate that mothers' licking and grooming of offspring induces biological changes in female pups that in turn regulate their maternal behavior as adults. (p. 280)
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Premature babies frequently touched in soothing ways by their mothers exhibited much better social and emotional growth as toddlers than did peers who had been exposed to harsh forms of maternal touching. (p. 280)
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Shattering a 40-year-old performance limit, a new layered, semiconductor material promises to spur wider use of so-called thermoelectric devices that cool or heat electrically and can convert heat to electric power. (p. 280)
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Although the curved faces of golf clubs called drivers blast balls sideways, their convex design works just right to compensate for other effects tending to make balls veer off the fairway, new calculations show. (p. 280)
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New food labeling will identify foods rich in choline, a nutrient that plays an integral role in learning and brain health. (p. 282)
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Composting manure reduces its testosterone and estrogen concentrations, limiting the runoff of these hormones, which can harm wildlife. (p. 285)
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Excreted drugs and household chemicals are making their way through community waste-treatment and drinking-water plants. (p. 285)
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Preliminary data from a new study show that children may ingest traces of atrazine, a common herbicide, in their drinking water. (p. 285)
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Some researchers now suggest that the so-called amyloid hypothesis is overstated and that other entities, including tau tangles, are as important as beta-amyloid in Alzheimer's disease. (p. 286)
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Book Review: Charles Darwin’s On the Origin of Species: A Graphic Adaptation
Review by Sid Perkins
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