Uncategorized

  1. Humans

    Letters from the September 1, 2007, issue of Science News

    Risk reversal? “Diabetes drug might hike heart risk” (SN: 6/23/07, p. 397) reports 86 heart attacks among 15,560 rosiglitazone (Avandia) users, versus 72 others in a control group of 12,283. A study coauthor then says that “after statistical adjustment, that yields a 43 percent higher risk of heart attacks among rosiglitazone users.” Simple arithmetic would […]

    By Science News
  2. Humans

    Urine tests for cities

    Analysis of sewage gauges community-wide use of illegal drugs.

    By Brian Vastag
  3. Earth

    Tiny tubes, big pollution

    Making carbon nanotubes also produces a lot of airborne carcinogens.

    By Brian Vastag

  4. Light switch

    A photosensitive molecule makes switching off a gene as simple as flicking on a light.