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E.g., 10/17/2017
Your search has returned 7 articles:
  • Feature

    Saving Sturgeon

    On a fine spring day alongside a Wisconsin river, several biologists wrestle a muscular, 120-pound fish onto her back and straddle her. The moves wouldn't be out of place in a rodeo. As the team restrains her, one member massages her swollen belly, working her eggs out of a release vent and into a plastic pail. The late-April scene occurs as, throughout the northern Midwest, water...

    02/27/2006 - 12:50 Ecology
  • Feature

    Armor-Plated Puzzle

    A few years after Francis H. Crick and James D. Watson unveiled the structure of DNA in 1953, they rocked the fledgling field of molecular biology again with a bold notion: Viruses are, in part, structured as crystals are. That idea captivated Donald L.D. Caspar and Aaron Klug, who then systematically applied what they knew about crystal geometry to classify and predict the structures that...

    08/29/2005 - 10:49 Numbers
  • News

    Blood hints at autism's source

    From San Diego, at the Experimental Biology 2005 meeting

    Researchers have identified a biochemical peculiarity in the blood of autistic children. The scientists say the finding could lead to earlier diagnosis of this neurological disorder and a better understanding of how certain genes may drive it.

    Autism, which typically shows up in toddlers, is characterized by limited language...

    04/12/2005 - 14:27 Biomedicine
  • Feature

    Transplanted Hopes

    A compelling description of untreated diabetes comes from Aretaeus of Cappadocia. Writing in the second century A.D., he called the disease "a melting down of the flesh and limbs to urine."

    Despite such an early recognition of the symptoms and severity of diabetes, effective treatment proved elusive. In the late 1800s, researchers localized the problem to the pancreas, a 100-gram...

    06/16/2003 - 14:45 Biomedicine
  • News

    Contraceptive-Patch Worry: Disposal concern focuses on wildlife

    Lately, television commercials in Europe and the United States have shown scantily clad women sporting the latest accessory–a contraceptive patch. Impregnated with the same synthetic estrogen that's in birth-control pills, these plastic bandages are worn for a week and then tossed. Some scientists now worry that because the discards still contain plenty of the hormone, sending them down...

    10/16/2002 - 11:39 Earth & Environment
  • News

    Cloned pigs, down on the corporate farm

    Dozing on a farm in Blacksburg, Va., are Alexis, Carrel, Christa, Dotcom, and Millie, the first pigs ever cloned from the cells of an adult swine. The corporate parent of the litter is PPL Therapeutics of Edinburgh, Scotland, the same firm that funded the creation of Dolly, the cloned sheep (SN: 3/1/97, p. 132: http://www.sciencenews.org/sn_arc97/3_1_97/fob1.htm).

    Hoping to...

    09/20/2002 - 14:42
  • News

    DDT treatment turns male fish into mothers

    Something fishy happens when the pesticide DDT gets into eggs—it can transform genetically male fish into apparent females. These altered males are fertile, able to lay eggs that produce young, according to a new study.

    "We were really not expecting to see complete [sex] reversal at all," says John S. Ramsdell, a toxicologist from the National Oceanic and Atmospheric...

    08/12/2002 - 11:46 Earth & Environment