September 30th, 2000
issue

  • Gene Tied to Heightened Diabetes Risk
    People with three particular variations within the gene that encodes the protein calpain-10 face triple the risk of getting type II diabetes. (p. 212)
  • Model offers grounds for midwestern quakes
    A new computer model may help explain how earthquakes can happen at fault zones located far from the edges of a tectonic plate. (p. 212)
  • Memory echoes in brain's sensory terrain
    The process of remembering an event reactivates brain regions that were involved in initially seeing or hearing the event. (p. 213)
  • Insulin inaction may hurt even nondiabetics
    Flawed insulin activity may lead to blood changes that foster atherosclerosis, even in people who don't have diabetes. (p. 213)
  • Craft finds where sun's corona gets its hots
    New findings may help explain an enduring solar riddle: Although the sun's outer atmosphere lies thousands of kilometers above the visible surface of the sun, it's about 1,000 times hotter. (p. 214)
  • Glitch splits hermaphrodite flowers
    In a newly proposed scenario, polyploidy may trigger perfectly good hermaphrodite plants to evolve gender forms. (p. 214)
  • One-molecule chemistry gets big reaction
    Carrying out a widely used chemical reaction on one molecule at a time, researchers demonstrate unprecedented control of molecular behavior and, possibly, the ability to make novel nanotechnology devices and compounds that can't be created with ordinary chemistry. (p. 215)
  • Virtual stampede sees faces in crowd
    A new computer model based on particle interactions suggests ways to prevent a panicked crowd from stampeding. (p. 215)
  • The Making of a Grand Canyon
    Carving this beloved hole in the ground may not have been such a long-term project. (p. 218)
  • Male Choice
    The search for new contraceptives for men. (p. 222)
  • Abused kids lose emotional bearings
    Physical abuse and neglect appear to undermine preschoolers' emotional development in different ways. (p. 216)
  • Brains generate a body of feeling
    Happiness, sadness, and other basic emotions activate unique networks of brain areas that track the body's internal status. (p. 216)
  • Electron breakup? Physics shake-up
    A controversial theoretical proposal that challenges more than a century of theory and experiments suggests that loose electrons in liquid helium may break into pieces, dubbed electrinos. (p. 216)
  • New solution for kitchen germs
    Acidic electrolyzed water appears to kill foodborne germs more effectively than a bath of dilute bleach. (p. 221)
  • Toxic runoff from plastic mulch
    Pesticide runoff from tomato fields covered with sheets of plastic can kill fish, clams, and other aquatic life. (p. 221)
  • Germ-killing plastic wrap
    Scientists have developed biodegradable plastics that release natural germ-killing agents onto the foods wrapped inside. (p. 221)
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