Vol. 170 No. #2
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More Stories from the July 8, 2006 issue

  1. Earth

    Asian sediments betray age of nearby desert

    Grains of silt embedded in thick sediments of northwestern China may settle a debate about the age of the Taklimakan Desert.

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  2. Health & Medicine

    Salmonella may join fight against cancer

    Salmonella modified to remove its virulence works as a cancer vaccine, tests in mice show.

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  3. Planetary Science

    Lots of red dust, but not much noise

    In space, no one can hear you scream, but a new analysis suggests that it's pretty quiet on Mars, too.

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  4. Chemistry

    Fungus foils polymer that defeats recycling

    A common tree-rotting fungus is the first to break down an otherwise impervious resin found in plywood and fiberboard.

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  5. Earth

    Fast-food flies ferry foul fauna

    Houseflies buzzing around fast-food restaurants could be spreading antibiotic-resistant bacteria.

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  6. Earth

    Underwater landslides tallied near Puerto Rico

    An oceanographic survey off the northern coast of Puerto Rico has found remnants of many underwater landslides, a handful of which were large enough to have caused deadly tsunamis.

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  7. Archaeology

    Shells may represent oldest known beads

    Researchers have identified three perforated shells dating to around 100,000 years ago as beads, making these finds the oldest known examples of personal decoration.

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  8. Earth

    The Long Burn: Warming drove recent upswing in wildfires

    Major forest fires in the western United States have become more frequent and destructive over the past two decades, in step with rising average temperatures in the region.

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  9. Astronomy

    Repaired Vision: Hubble’s camera sees again

    The main camera on the Hubble Space Telescope is operating normally again after being blinded for 2 weeks by an electrical failure.

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  10. Young and Deadly: Cancer shares gene activity with developing lungs

    Genes that are switched on or off in developing mouse lungs have similar activities in human-lung cancers.

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  11. Smoke Screen: Light cigarettes reduce odds of quitting

    People who smoke light cigarettes are much less likely to quit smoking than people who smoke regulars.

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  12. Animals

    Dawn Sneaks: Old birds sing early, cuckold sleepyheads

    Among European birds called blue tits, older males join the springtime dawn chorus extra early—which may signal their charms to philandering females.

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  13. Feminine Side of ADHD: Attention disorder has lasting impact on girls

    Many girls diagnosed with attention-deficit hyperactivity disorder as grade-schoolers struggle with a variety of problems related to that condition as teenagers, even though their hyperactive symptoms often ease.

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  14. Tech

    Power Play: Shift from loss to gain may boost silicon devices

    By tapping solar cell-like behavior in a silicon optical amplifier, engineers have shown that light-manipulating components made from silicon can become power recyclers rather than power wasters, an advance that boosts prospects for silicon optical devices.

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  15. Astronomy

    Astronomy Gets Polarized

    Studies using polarized light, an endeavor once considered astronomy's stepchild, are now elucidating the shape of supernovas as well as providing new details about the early universe.

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  16. Earth

    Dirty Little Secret

    Recognition is growing that many communities have soils laced with asbestos, which has prodded several federal agencies to probe the hazards they might pose.

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  17. Humans

    Letters from the July 8, 2006, issue of Science News

    The grammar gene? While reading that starlings may be capable of discerning grammatical patterns (“Grammar’s for the Birds: Human-only language rule? Tell starlings,” SN: 4/29/06, p. 261), I recalled the FOXP2 gene. The gene seems to be involved in the development of areas of the brain involved in speech in humans. Variants of FOXP2 were […]

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