Vol. 168 No. #11
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More Stories from the September 10, 2005 issue

  1. Health & Medicine

    Protein fingered in rare psychosis

    A protein is pivotal in bringing on the psychotic attacks that beset people with porphyria, a rare inherited disease.

  2. Tech

    Body-fluid battery

    A battery that's activated by body fluids such as saliva or urine may one day power devices ranging from disposable home health-care testing kits to emergency radio transmitters that turn on with a lick.

  3. Planetary Science

    Satellites could detect quakes on Venus

    Strong seismic activity on Venus could cause brief but detectable temperature increases high in that planet's atmosphere.

  4. Health & Medicine

    Rooting out hidden HIV

    A drug called valproic acid, used in combination with other medications, can ferret out HIV that is lying dormant in cells.

  5. Earth

    Cancer-fighting e-mails

    A new federal service, offered jointly by the U.S. Environmental Protection Agency and the National Weather Service, will notify individuals, via e-mail, when the sun's cancer-causing ultraviolet radiation is forecast to be unusually high.

  6. Health & Medicine

    Critical for Coating: Protein directs nerve-sheath construction

    A protein produced by nerve cells is essential for the manufacture of myelin, the fatty sheath surrounding nerve fibers.

  7. Dead Tired: Weary doctors function as if intoxicated

    After a month of long hours of challenging work, fatigued physicians show impairments in driving and other tasks requiring constant attention and quick reactions.

  8. Humans

    Hurricane provisions

    We at Science News express our strong concern and extend our deepest sympathy to those who are suffering through the ongoing ordeal caused by Hurricane Katrina.

  9. Thinking the Hurt Away: Expectations hitch ride on pain’s brain pathway

    Positive thinking exerts a calming effect on pain-related brain areas, yielding a substantial reduction in the actual perception of pain, a brain-scan investigation suggests.

  10. Planetary Science

    Top of the Martian hill

    After a 14-month climb up a Martian hill, NASA's rover Spirit took a panoramic image of the view from the top.

  11. Materials Science

    Sun and Sand: Dirty silicon could supply solar power

    Scientists have proposed a way to control the distribution of contaminants in silicon, potentially opening up the use of cheaper starting materials for making solar cells.

  12. Tech

    Electronics Gets Y’s: Nanotubes branch out as novel transistors

    Y-shaped nanotubes might become a common component in ultrasmall electronic circuitry.

  13. Animals

    Perfect Match: Tied contest gives fish no hormone rush

    A male fish produces a burst of hormones as he fights off an intruder, but this surge isn't triggered simply by fighting.

  14. Astronomy

    Deep Impact

    Data from the Deep Impact mission reveal that the bullet that slammed into Comet Tempel 1 on July 4 excavated material that likely hadn't seen the light of day since the birth of the solar system 4.5 billion years ago.

  15. Health & Medicine

    When Flu Flies the Coop

    Scientists are tracking the spread of a threatening influenza virus in birds and exploring strategies that could be used to halt a potential outbreak in people before it explodes into a global epidemic.

  16. Humans

    Letters from the September 10, 2005, issue of Science News

    Pennies in heaven? Why slam a copper impactor into Comet Tempel 1 (“A Grand Slam: In a winning move, NASA probe burrows into a comet,” SN: 7/9/05, p. 22)? Wouldn’t copper vapor contaminate the spray? Why not a high-temperature ceramic? P.M. deLaubenfelsCorvallis, Ore. According to Casey Lisse of the Deep Impact team, copper was chosen […]