News

  1. Earth

    Memory problems linked to PCBs in fish

    Adult exposures to polychlorinated biphenyls, from eating tainted fish, correlate with lower scores on learning and memorization tasks.

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  2. Materials Science

    Scientists get a handle on crystal shape

    Researchers have discovered how the orientation of amino acid molecules can make a growing crystal take on either a right- or a left-handed form.

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  3. Healthy aging may depend on past habits

    A 60-year study indicates that middle-aged men can exert a considerable amount of personal control over their eventual physical and mental health as seniors.

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  4. Earth

    New test traces underground forest carbon

    An unusual method of studying soil respiration by girdling trees may clear up several vital mysteries in the way carbon cycles through forests.