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Your search has returned 18 articles:
  • News

    Enzyme is target in parasite

    The flatworm that causes the tropical disease schistosomiasis has a newly discovered Achilles' heel that drugmakers might be able to exploit.

    The target is an enzyme called thioredoxin glutathione reductase (TGR). Biochemist David L. Williams of Illinois State University in Normal, and his colleagues identified the enzyme in the Schistosoma mansoni worm in earlier research.


    07/02/2007 - 14:25
  • News

    Pas de deux for a three-scoop particle

    Two experiments running simultaneously at the Fermi National Accelerator Laboratory in Batavia, Ill., have observed a new particle called the cascade baryon. It is one of the most massive examples yet of a baryon—a class of particles made of three quarks held together by the strong nuclear force—and the first to contain one quark from each of the three known families, or generations, of these...

    07/02/2007 - 14:09 Physics
  • News

    Linking stress and senility

    Studies have suggested that emotional stress can increase a person's risk of developing Alzheimer's disease. Now, scientists have found a gene that may explain the connection.

    Paul E. Sawchenko of the Salk Institute for Biological Studies in La Jolla, Calif., and his colleagues turned their attention to a gene called type 1 corticotropin-releasing factor receptor (CRFR1), because it's...

    07/02/2007 - 13:53 Biomedicine
  • Letters to the Editor

    Letters from the July 7, 2007, issue of Science News

    Hex sine?

    The NASA researchers baffled by the hexagonal shape in Saturn's soupy atmosphere at its northern pole ("A hexagon on the ringed planet," SN: 4/28/07, p. 269) should read "As waters part, polygons appear" (SN: 6/3/06, p. 348). It is worth investigating whether there is a similar phenomenon—I still suspect some sort of standing sine wave effect—at work in both cases.

    07/02/2007 - 13:40 Humans & Society
  • News

    Icebergs can be biological hot spots

    Material scraped off land by glaciers and carried to sea by icebergs nourishes life in frigid Antarctic waters.

    Late in 2005, oceanographers conducted separate biological surveys near two large icebergs in the South Atlantic. One, an ice mass about 2 kilometers long and 0.5 km wide, drifted more than 120 km in 8 days, says Kenneth L. Smith Jr., an oceanographer at the...

    07/02/2007 - 12:11 Earth
  • News

    Blind people excel at serial recall

    Blindness from birth fosters a superior ability to learn and remember ordered sequences of information, a new study indicates.

    Blind people recall much longer word sequences than sighted individuals do, report Noa Raz of the Hebrew University in Jerusalem and his colleagues. The researchers propose that the advantage stems from blind people constantly practicing serial-memory strategies...

    07/02/2007 - 11:57
  • Feature

    Restoring Scents

    Betty (not her real name) remembers the day 9 years ago when she fully experienced an orange. As she split the fruit's skin, citrus scents sprayed into the air and the 51-year-old woman experienced a sensory epiphany: "Whoa! This is an orange. My God, this is what an orange smells like."

    Even now, she says, recalling that day "makes me tear up...

    07/02/2007 - 11:49 Biomedicine
  • Feature

    Trouble in Paradise

    The Micronesian islands that form the Republic of Palau, situated about 500 miles east of the Philippines, boast the sun-washed beaches and lush greenery of a tropical paradise. But behind the picture-postcard scenery lurks a disturbing mental-health mystery. For some reason, Palau has one of the highest rates of schizophrenia in the world.


    07/02/2007 - 10:24