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  • News

    Borderline Aid: Psychotherapy soothes personality ailment

    Borderline personality disorder, a psychiatric condition marked by volatile relationships and stormy emotions, has the reputation of being tough to treat. A new study, however, indicates that any of three types of psychotherapy stimulates substantial improvement in people with this disorder.

    Psychotherapy that centers on emotional themes arising in the interaction between patient and...

    06/13/2007 - 12:39
  • News

    Shifting Ocean: Tipsy Mars may explain undulating shoreline

    By proposing that the Red Planet was tipped halfway over on its side several billion years ago, astronomers this week provide a new perspective on—and new support for—the long-standing notion that Mars once held a vast ocean.

    Viking-spacecraft images of the northern lowlands of Mars, taken in the 1980s, showed what appeared to be two ancient shorelines, each several thousand...

    06/13/2007 - 12:00 Planetary Science
  • News

    Vaccine Harvest: Cholera fighter could be easy to swallow

    By genetically modifying rice plants, scientists have created an edible vaccine that triggers an immune reaction capable of neutralizing cholera toxin, tests in mice show. But the researchers stress that the altered rice wouldn't be sold in stores, grown openly, or be eaten as food. Rather, they envision rice-powder capsules or pills that would deliver the vaccine.

    The...

    06/13/2007 - 11:47 Biomedicine
  • News

    Improbability Drive: Focus on rare actions speeds chemical simulations

    In The Hitchhiker's Guide to the Galaxy, the book by Douglas Adams, a machine made interstellar travel possible by nudging nature toward extremely improbable, but not impossible, events. A new computer-simulation technique promises to calculate chemical-reaction rates 20 times as fast as before by focusing on chains of events that—on the timescales of molecular motion—are very rare but...

    06/13/2007 - 11:23 Technology
  • News

    Easy There, Bro: A plant can spot and favor close kin

    A little beach plant can recognize other plants that grew from its own mother's seeds, according to experiments on root growth.

    Sibling sea rocket plants don't compete with each other as fiercely as unrelated plants do, reports Susan A. Dudley of McMaster University in Hamilton, Ontario.

    Plenty of research in animals has found differences in responses to relatives...

    06/13/2007 - 11:17 Plants
  • News

    Breast Cancer Lead: Overactive gene is linked to disease

    Researchers have discovered a new breast cancer gene that's overly active in 30 to 40 percent of women with the disease. The high percentage makes the malfunctioning of this gene, called I-kappa-B kinase epsilon (IKBKE), one of the most widespread genetic traits among breast cancer patients, says William C. Hahn, coleader of the research team at the Broad Institute in Cambridge, Mass. Their...

    06/13/2007 - 11:03
  • News

    Big and Birdlike: Chinese dinosaur was 3.5 meters tall

    Paleontologists have unearthed the remains of an immense, fast-growing dinosaur whose body proportions don't match those predicted by the evolutionary trends that characterize its more diminutive kin.

    The creature, one of a group of birdlike dinosaurs called oviraptors, strolled semiarid river valleys of what is now northern China about 70 million years ago. Aptly given the...

    06/13/2007 - 10:17 Paleontology
  • News

    Trouble for forests of the northern U.S. Rockies?

    From Acapulco, Mexico, at a meeting of the American Geophysical Union

    Climate change expected to occur in the coming decades may cause forests in northern stretches of the U.S. Rockies to stop absorbing carbon dioxide and even to release some to the atmosphere, exacerbating the planet's warming.

    Trees pull carbon dioxide from the air as they grow. Much of the carbon from that gas...

    06/12/2007 - 14:23 Earth & Environment
  • News

    How sea turtle hatchlings know where to crawl

    From Acapulco, Mexico, at a meeting of the American Geophysical Union

    Field tests suggest that newly hatched sea turtles need a variety of senses, not just sight, to find their way to the ocean.

    The female black sea turtle (Chelonia agassizi) buries her eggs in sand 100 meters or so from the shoreline. As soon as the hatchlings emerge, they head for the water. Most previous...

    06/12/2007 - 14:12
  • News

    Darker days during Arctic summer

    From Acapulco, Mexico, at a meeting of the American Geophysical Union

    Satellite observations of Earth indicate that Arctic regions reflected less sunlight into space in the summer of 2006 than in other recent years. That change could contribute to the warming of Earth's climate.

    Sensors on board NASA's Terra satellite have been observing Earth's surface since May 2000, says Roger...

    06/12/2007 - 14:02 Earth