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Your search has returned 38 articles:
  • News

    Recurrent Eruption: Explosive stellar saga

    Imagine the blast of a nuclear bomb as heavy as Earth and you'll get some idea of the energy unleashed in each of the six thermonuclear explosions that have ripped off the outer layers of a dense, nearby star in the past 108 years.

    During the star's most recent outburst, which occurred in February, astronomers obtained their sharpest look yet at this recurrent type of...

    07/19/2006 - 20:00 Astronomy
  • News

    Big Headache: Auras may add risk to migraines

    As if the headaches weren't enough. Women who experience migraines that are preceded by sensory irregularities face a heightened risk of heart attack, stroke, and other cardiovascular problems, a long-term study of middle-aged women shows.

    Some people with migraines have sensory anomalies, called auras, which can include zigzag lines or spots of light in the visual field or grayed...

    07/19/2006 - 18:16 Biomedicine
  • News

    Sandy clues to ancient climate

    The orientation of these dunes in north-central Nebraska provide a clue that the climate there a millennium ago was much different than it is today. The Nebraska Sand Hills have been frozen in place by vegetation for 800 to 1,000 years, says David B. Loope, a geologist at the University of Nebraska in Lincoln.

    The 12-to-15-meter-tall dunes, which run from west-northwest to...

    07/19/2006 - 17:33 Earth
  • News

    From Mind to Matter: Data analysis challenges psychokinesis

    Scientists have long considered claims that people can manipulate the physical world with their minds. Yet numerous experiments conducted over the past 35 years, in which people try to influence the output of computers that generate random sequences of 1s and 0s, have overall failed to demonstrate the existence of so-called psychokinetic effects, according to a new analysis. Some individual...

    07/19/2006 - 13:57
  • News

    Deadly Disorder: Imagined-ugliness illness yields high suicide rate

    The suicide rate among people with a psychiatric disorder that causes them to perceive themselves as ugly is higher than that among people with major depression, says a new report.

    Over the course of a 4-year study, 2 of 185 patients with body dysmorphic disorder (BDD) committed suicide. That's twice the suicide rate in severely depressed people and 45 times that expected in a general...

    07/19/2006 - 13:32