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113,350+ results

113,350+ results for:

  1. Humans

    Wash Your Veggies!

    The lesson in all of these food-poisoning outbreaks is that we must not expect a risk-free food-supply chain.

    By Janet Raloff
  2. Astronomy

    From planet to plutoid

    Pluto and its dwarf planet neighbors are christened plutoids, the International Astronomical Union rules.

    By Ashley Yeager
  3. Humans

    Teacher Certification Increases, But . . .

    Rigorous standards exist for what teachers should know and be able to do. The rub: only about three U.S. teachers out of every five schools have demonstrated they meet those standards.

    By Janet Raloff
  4. Health & Medicine

    Virus versus virus

    Customized RNA snippets delivered by a harmless virus could someday provide a new way to combat the hepatitis B virus.

    By Patrick Barry
  5. Health & Medicine

    Seeing disease’s acidic side

    Small tumors can be detected using a new technique that safely, reliably and noninvasively measures tissue chemistry.

    By Amy Maxmen
  6. Climate

    Goldilocks tree leaves

    Leaves mostly keep their cool (or warmth) wherever they live, a finding that might affect reconstructions of past climates.

    By Susan Milius
  7. Physics

    Life’s code in soap

    The mathematics of soapy water yields some clues to the origin of the genetic code.

    By Davide Castelvecchi
  8. Humans

    Symbolic snacks

    Capuchin monkeys can reason with tokens as they do with different foods, demonstrating a basic capacity for thinking symbolically.

    By Bruce Bower
  9. Health & Medicine

    Parasite payback

    The protozoan parasite that causes leishmaniasis seems vulnerable to the anticancer drug tamoxifen, research in mice shows.

    By Nathan Seppa
  10. Physics

    Suction hunters

    Scientists reveal new details on how extendable jaws help fish capture prey.

    By Davide Castelvecchi
  11. Health & Medicine

    Time on their side

    Review of a decade's worth of major league baseball games shows a slight cost in performance in teams with jet lag.

    By Tina Hesman Saey
  12. Health & Medicine

    Thanks for the pounds, Mom

    When inherited from mom, a gene linked to obesity and diabetes interferes with blood sugar metabolism.

    By Patrick Barry