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  1. Materials Science

    A nanotechnology report card

    Research on how nanotechnology affects human health and the environment must be expanded, a National Research Council report concludes.

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  2. Right brain area linked to fairness

    The ability to control selfish impulses in order to reject an unfair deal depends on a specific right brain area.

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  3. Earth

    Ancient hot spell is linked to copious carbon dioxide

    A mineral that formed in some lakes during a lengthy and particularly warm period in Earth's past suggests that atmospheric concentrations of carbon dioxide were at that time at least triple those found in today's air.

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  4. 19741

    Reading this article prompted me to consider the biological significance of fever and our impulse to reduce it when given the choice.