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  1. Tech

    Lighthearted Transistor: Electronic workhorse moonlights as laser

    A versatile new transistor amplifies electricity and emits a laser beam.

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  2. Chemistry

    Busy Beads: Magnetic dust takes droplets for a ride

    With a bit of dust and a magnet, chemists can shuttle drops around on a surface, an advance that could lead to chemistry labs on a chip.

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  3. 19483

    In this article, you report on a study in which it was found that female monkeys raised in a stressful situation drink alcohol to excess only if they possess just the short serotonin-transporter gene. If a positive correlation were to be found in abusers of drugs and alcohol and the presence of two copies of […]

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  4. Profiles in Melancholy, Resilience: Abused kids react to genetics, adult support

    Abused and neglected children who possess two copies of a gene that affects brain chemistry develop depression at an elevated rate only if they also lack support from at least one adult.