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Your search has returned 36 articles:
  • News

    Faker Crayfish: Males keep bluffing but don't get caught

    Many males of an Australian crayfish species consistently fake their way through macho confrontations, a new analysis of rivalries indicates, even though evolutionary theory says that such bluffing should be rare.

    When two male slender crayfish (Cherax dispar) encounter each other, the one waving bigger claws typically sends the smaller-clawed creature fleeing, say Robbie...

    07/03/2007 - 08:53 Animals
  • News

    Polymer Breakdown: Reaction offers possible way to recycle nylon

    Each year, thousands of tons of nylon end up in landfills. But small-scale experiments may offer big hope for efficient recycling of some types of the material.

    Nylon-6, an artificial polymer used in carpets, clothing, and car parts, is made by chemically linking large numbers of molecules derived from a petroleum product called caprolactam. Current processes to break apart...

    07/03/2007 - 08:39 Earth & Environment
  • News

    Antibiotics in infancy tied to asthma

    Children given multiple doses of antibiotics before their first birthdays have a heightened risk of asthma later, a study shows.

    Researchers analyzed the medical records of 13,116 children born in Manitoba in 1995. Roughly 6 percent of the group developed asthma by age 7.

    Kids getting more than four courses of antibiotics during the first year of life were 1.5 times as likely to...

    07/02/2007 - 15:06 Biomedicine
  • News

    Smallest laser minds the gap

    The smallest, most efficient laser yet, a nanoscale device that consumes just 1 microwatt of power, could one day be a component of faster computers.

    Toshihiko Baba of Yokohama National University in Japan and his colleagues constructed the tiny laser out of a photonic crystal—a material with internal microstructure that controls the behavior of selected wavelengths of light...

    07/02/2007 - 14:51 Physics
  • News

    Oldest siblings show slight IQ advantage

    For more than a century, researchers have argued about whether first-born children tend to surpass their later-born siblings in intelligence. A large study now indicates that eldest sons indeed score slightly higher on IQ tests than boys with older siblings do.

    This IQ effect reflects how participants were raised, not absolute birth order, say Petter Kristensen of the National Institute...

    07/02/2007 - 14:37