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http://www.sciencenews.org/view/issue/id/8708
July 14th, 2007
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Microscopic bubbles of fat that deliver a suicide gene to tumor cells show success in treating pancreatic cancer in mice. (p. 19)
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Adélie penguins in Antarctica significantly changed their eating habits about 200 years ago, after whaling and other human activities transformed the ocean ecosystem. (p. 19)
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People who live in an area of China where electronic devices are dismantled and recycled, as well as villagers 50 kilometers away, have high concentrations of flame retardants in their blood. (p. 20)
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Life-long smoking cuts the chance of getting Parkinson's disease by about half. (p. 20)
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Close observations of fragments of a comet indicate that its interior was remarkably similar to its surface, meaning that repeated solar heating didn't much change its outer layers. (p. 21)
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Two newly discovered neural processes give people the ability to intentionally forget upsetting memories. (p. 21)
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Unfolding a single protein by pulling on its ends reveals the molecular forces that make it fold up. (p. 22)
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By observing the minieclipses known as transits, when a distant planet passes in front of its parent star, astronomers are learning more about the size, composition, and temperature of exoplanets. (p. 24)
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Although they have explored many promising ideas, scientists are finding it difficult to develop new treatments to limit the damage caused by ischemic strokes. (p. 26)
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Reprogrammed mouse skin cells that act as stem cells may offer an alternative for research involving embryos. (p. 29)
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A dust storm has delayed the descent of the Mars rover Opportunity into Victoria crater. (p. 29)
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A new, gooey, and potentially useful protein has been extracted from the bodies of jellyfish that overpopulate the seas around Japan. (p. 29)
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A hepatitis B drug spurs resistance to HIV drugs in people infected with both diseases. (p. 29)
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Lake Agassiz, a huge and now vanished freshwater lake, formed almost 14,000 years ago, toward the end of the last ice age. (p. 30)
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Microbes that ferment glycerol to ethanol could add an economically valuable new ingredient to the biofuel industry. (p. 30)
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Modified mouse cells make proteins that include synthetic amino acids in addition to the 20 natural ones. (p. 30)
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The starlet sea anemone, a primitive creature with ancient evolutionary roots, has a surprisingly complex genome. (p. 30)
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(p. 31)
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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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