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Your search has returned 30 articles:
  • News

    Corn Defenses: Bitten plants deploy gut-rotting enzyme

    Some corn varieties that arose on the Caribbean island of Antigua defend themselves with chemical attacks that leave insect gut linings in tatters.

    When armyworm caterpillars make the mistake of chewing on some of this corn, they don't grow well, reaching only half the weight of counterparts that consume less gut-wrenching corn, says Dawn S. Luthe of Mississippi State...

    09/11/2002 - 14:10
  • News

    Smoking Gun? Mouse tests link nicotine to crib death

    Nicotine may impair a molecule that's necessary for arousing people and other animals from sleep, a study of mice finds. The effect could account for the heightened risk of sudden infant death syndrome (SIDS) in babies born to women who smoked during pregnancy. This well-established link has never been fully explained.

    SIDS, also called crib death or cot death, occurs when babies...

    09/11/2002 - 13:53 Biomedicine
  • News

    Better-Built Diamonds: Fast growth, purity may multiply uses

    Although researchers have been getting better at making artificial diamonds for a half century, they haven't yet made the crystals as big or as pure as some diamond visionaries would like. Yet large natural diamonds that make beautiful jewelry are neither pure enough nor cheap enough for the more demanding requirements of technology developers. Artificial diamonds may soon make the grade, two...

    09/11/2002 - 13:29 Materials
  • News

    Small Steps: World Summit delegates wrangle over eco-friendly future

    The World Summit on Sustainable Development concluded in controversy last week in Johannesburg.

    Some delegates claimed that the United Nations meeting was a success, with agreements on many issues. Detractors argued that the 10-day summit was a waste of time, pointing to the lack of specific targets and deadlines within those agreements.

    More than 20,000 government delegates and...

    09/11/2002 - 12:01 Humans & Society
  • News

    Birth of a Tiny Galaxy: In the universe, dwarfs may pop up last

    The tiniest galaxy known is still in the process of being born. Observing this Lilliputian with the Hubble Space Telescope, astronomers are getting a rare glimpse of how larger galaxies formed early in the history of the universe.

    The revelations support a recent model of galaxy formation that holds that the smallest galaxies, rather than the biggest, are last to assemble....

    09/11/2002 - 11:26 Astronomy