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Your search has returned 20 articles:
  • Feature

    Big Fishing Yields Small Fish

    Sharks, billfish, cod, tuna and other fish-eating fish — the sea’s equivalents to lions on the Serengeti — dominated the marine world as recently as four decades ago. They culled sick, lame and old animals and kept populations of marine herbivores in check, preventing marine analogs of antelopes from overgrazing their environment.

    But the reign of large predators now...

    03/25/2011 - 11:51
  • News

    How reading may protect the brain

    Workers at lead-smelting plants can suffer substantial neural damage from exposure to the toxic heavy metal. Workers who read well, however, experience comparatively less mental impairment, a new study finds.

    It's not that the better readers were smarter, but that they have more "cognitive reserve," explains study leader Margit L. Bleecker, a neurologist at the Center for Occupational...

    08/14/2007 - 13:33 Earth & Environment
  • Feature

    Dashing Rogues

    In February 1933, the Navy tanker USS Ramapo was steaming its way from the Philippines to San Diego in the midst of an exceptionally strong storm. The 146-meter-long ship was buffeted by near-hurricane–force winds. Early on the morning of Feb. 7, a wave far larger than the others surrounding the ship overtook the Ramapo from behind.

    As the stern of the ship dropped...

    11/13/2006 - 09:18 Earth
  • News

    Easy Answers: Quantum computer gives results without running

    Physicists have long known that quantum computers have the potential to race through calculations trillions of times as fast as ordinary computers do. Now, it seems that those machines may not have to calculate at all to deliver answers.

    That seemingly absurd possibility, which was advanced as a theory several years ago, has now received experimental verification. What's more, although...

    02/22/2006 - 12:18 Physics
  • News

    Feminized cod on the high seas

    From Baltimore, at a meeting of the Society of Environmental Toxicology and Chemistry

    Male cod in the open ocean are producing vitellogenin, an egg-yolk protein ordinarily made only by females.

    Vitellogenin "is a highly specific indicator of a fish's exposure to estrogens"—female sex hormones—as well as to pollutants that mimic them, notes Alexander P. Scott of the Centre for...

    12/04/2005 - 16:01 Ecology
  • Food for Thought

    Fruits and Veggies Limit Inflammatory Protein (with recipe)

    Over the past few years, many studies have linked an increased risk of debilitating illness—such as heart disease or diabetes—with chronically elevated blood concentrations of a protein typically associated with inflammation. In many cases, people with the indicated illnesses didn't even have a particularly level of inflammation. The good news: A new trial finds that eating plenty of fruits...

    12/01/2005 - 14:38 Nutrition
  • News

    Grow in the Dark: Bottom-dwelling bacterium survives on geothermal glow

    A microbe discovered in the deepest, darkest reaches of the Pacific Ocean makes its living in an unlikely way—by photosynthesis. The newly described species, announced in the June 28 Proceedings of the National Academy of Sciences, uses faint light emitted by deep-sea hydrothermal vents to power its metabolism.

    A host of weird creatures lives at these vents, often called black...

    06/22/2005 - 12:26 Other
  • Food for Thought

    Carcinogens in the Diet

    It's official. The federal government now has added agents commonly found in overcooked meat to the list of potential cancer causers.

    On Jan. 31, the National Toxicology Program (NTP), part of the National Institutes of Health, published its latest update of materials known to cause cancer in people and others that are "reasonably anticipated" to do so. Among the 246 agents on...

    02/14/2005 - 17:21 Nutrition
  • Food for Thought

    Leaden Gardens

    Soils in many cities of the United States carry a poisonous legacy: heavy concentrations of lead. The metal was deposited for years as fallout from flaking leaded house paint and the emissions of cars burning leaded gasoline. Recognizing the threat posed by tainted soil, environmental scientists have warned that growing edible plants in soils near streets or within several feet of homes and...

    12/04/2003 - 17:26 Earth & Environment
  • Food for Thought

    Wash Those Hands!

    When physicians talk about food poisoning, they're not usually referring to the effects of natural toxins made by plants or animals. But some foods do carry that danger. For instance, potatoes can develop pest-deterring agents in and just under their skins that can sicken or, rarely, kill a person. And certain fish — such as the infamous puffer — produce chemicals that have done in more than...

    10/08/2003 - 13:10 Technology