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http://www.sciencenews.org/view/issue/id/3037
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In This Issue
- It’s written all over your face: To potential mates, your mug may reveal more than you think
- Team spirit: Working together, bacteria and other microbes can accomplish much more than they can alone. Now scientists hope to harness that ability by engineering their own microbial consortia.
- For a big view of inner Earth, catch a few…Geoneutrinos
- This week's table of contents
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August 24th, 2002
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A virus that preys upon the anthrax bacterium produces an enzyme that can be exploited to detect and kill the biowarfare agent. (p. 115)
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Sediments laid down about 3.47 billion years ago in what are now western Australia and eastern South Africa contain remnants of what may have been an extraterrestrial-object impact large enough to disperse debris over the entire planet. (p. 115)
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A spacecraft that had just begun its journey to two comets has fallen silent and may have broken apart. (p. 116)
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A mathematical model of peer-influenced behavior may help explain some unexpected patterns that have been observed in financial data and bird populations. (p. 116)
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Fields Medals were awarded to two mathematicians, Laurent Lafforgue and Vladimir Voevodsky, who forged new links between different branches of mathematics. (p. 117)
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A new finding that machining of metals imparts a hard, fine-grained structure to turnings and other scraps may lead to less costly but more durable parts for cars and other applications. (p. 117)
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The condition of a lion's mane apparently advertises high-quality mates to picky females and wards off male adversaries. (p. 117)
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Experiments with a split-brain patient suggest that left-hemisphere structures contribute to the conscious understanding of oneself. (p. 118)
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The discovery that acrylamide—a known animal carcinogen—forms in many foods as they fry or bake has prompted the development of an international research network to investigate whether it poses a threat. (p. 120)
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About 235 million years ago, as the earliest dinosaurs stomped about on land, some of their reptilian relatives slipped back into the surf, took on an aquatic lifestyle, and became ichthyosaurs—Greek for fish lizards. (p. 122)
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Radioactivity creates electric fields that wiggle a tiny lever. (p. 125)
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Compared with animals living in smokefree homes, cats who lived for some time with a smoker at least doubled their risk of developing the feline analog of the cancer non-Hodgkin's lymphoma. (p. 125)
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Monarch butterflies that winter in California, especially males that had a demanding day, search out dewdrops as a water source. (p. 125)
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As of August 1, barely half the usual number of tornadoes had struck the lower 48 states of the United States. (p. 125)
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In liquids agitated by sound waves, imploding gas bubbles get cooled when atoms recombine, making the bubbles unlikely nuclear reactors. (p. 125)
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A new imaging agent may allow researchers to detect the plaques characteristic of Alzheimer's disease before symptoms are present, when therapies may be most effective. (p. 126)
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Comparison between crop and wild sunflower genes suggests that the plant followed an easy route to domestication. (p. 126)
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In the pine rocklands of southern Florida, at least nine plant species find new homes by traveling through a turtle's gut. (p. 126)
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Book Review: Don’t Sleep, There Are Snakes: Life and Language in the Amazonian Jungle
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