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Your search has returned 30 articles:
  • News

    Laser links segue to chemical bonds

    From Long Beach, Calif., at a meeting of the American Physical Society

    The light touch of a laser beam can shackle microscopic particles together to make an unusual form of matter. Now, a team of Tennessee researchers finds that this optical binding can set the stage for a chemical encore.

    In the late 1980s, scientists at the Rowland Institute for Science and Harvard University,...

    11/05/2002 - 16:50 Physics
  • News

    Electron cycling in quantum confines

    From Long Beach, Calif., at a meeting of the American Physical Society

    Like a race car forced to stay within certain lanes of a speedway, a lone electron in a circular path should whirl along exclusively in specific allowed orbits, the rules of quantum mechanics say.

    In a Harvard University laboratory, physicists have devised an extraordinarily small, low-energy cyclotron in which...

    11/05/2002 - 16:49 Physics
  • News

    Nervous tics in the heart

    Nerve growth run amok may explain why, after surviving a heart attack, some people begin to suffer from irregular heartbeats and may die suddenly when their heart stops beating.

    Scientists have known that heart attacks damage both the heart muscle and the nerves that infiltrate the muscle. The electrical signals that trigger the heart to beat are impaired when sent through damaged...

    11/05/2002 - 12:59 Biomedicine
  • News

    Waiting to exhale

    A simple breath test can help identify patients most likely to suffer severe side effects of chemotherapy with docetaxel, one of the most widely used anticancer drugs. This is a result of a small study published in the April Clinical Cancer Research.

    The new test measures the activity of an enzyme known as cytochrome p450 3A4 (CYP 3A4), which breaks down, or metabolizes, docetaxel and...

    11/05/2002 - 12:58 Biomedicine
  • News

    New views of Jovian moons

    Bombarded by charged particles and exposed to large magnetic fields, the Galileo spacecraft recently braved several passes through Jupiter's radiation belts to get a closer look at the planet's volcanically active moon Io. As it neared Io, the craft also captured portraits of Metis, Amalthea, and Thebe, three of Jupiter's small, innermost moons.

    The new images, released...

    11/05/2002 - 12:43 Astronomy