- :: Atom & Cosmos
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http://www.sciencenews.org/view/issue/id/9430
March 1st, 2008
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The proportions of certain chemical isotopes in someone's hair can help detectives pin down that individual's region of origin and track their recent movements, a finding that could be particularly useful in forensic investigations. (p. 131)
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A protein thought to be fluorescent instead emits light the way an LED does, suggesting that some living things might do the same. (p. 131)
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Astronomers find new insights into how massive stars form. (p. 132)
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A new analysis of FDA data concludes that placebo pills generally offer almost as much symptom relief to depressed patients as antidepressant medications do, raising questions about physicians' antidepressant-prescription practices. (p. 132)
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With new production techniques, the total emissions of greenhouse gases and other pollutants from making and using solar panels are now only one-tenth as high as those of conventional power generation. (p. 133)
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A new survey and map of malarial areas worldwide show 2.4 billion people at risk. (p. 133)
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The unusual pigment Maya blue was probably made over an incense fire as part of a ceremony honoring the rain god Chaak, a new analysis of a pot reveals. (p. 134)
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The first camera lowered 3,000 meters to the seabed off the coast of Antarctica videoed what biologists identify as the supposedly upper-ocean species of Antarctic krill. (p. 134)
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Some scientists believe the human brain is the creation of RNA. Only noncoding RNAs are plentiful, and powerful enough to handle the billions of complex interactions the brain faces every day. (p. 136)
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Nurturing the microbes living in the human body can pay dividends—from shortening the length of colds to fighting obesity and osteoporosis. (p. 138)
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Some child-abuse victims possess specific variations in a stress-regulating gene that decrease their likelihood of developing moderate or severe depression as adults, a research team reports. (p. 141)
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Resistance to pest-killing cotton crops is spreading among one species of caterpillar, but techniques to prevent the spread of resistance appear to be working for five other species. (p. 141)
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Warming waters could push new predators into Antarctica's delicate ecosystems. (p. 141)
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The quantum states of single diamond impurities work as magnetic sensors that could enable nuclear magnetic resonance to detect single atoms. (p. 141)
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Breast development is delayed in teenage girls who were exposed to the organic pollutant dioxin in the womb and in their mothers' breast milk. (p. 142)
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A sample of a black coral from a depth of 400 meters turns to be 4,200 years old. (p. 142)
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Gene profiles show inflammation is the key to making skin age, and sun exposure speeds the process. (p. 142)
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The great white sharks of the eastern Pacific may be genetically isolated from the world's other white sharks, and tagging data reveal that the animals stick to specific routes and destinations. (p. 142)
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(p. 143)
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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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Review by Sid Perkins
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