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  1. Chemistry

    Molecular Car Park: Material packs in carbon dioxide

    A porous, crystalline material composed of metal and organic building blocks holds more carbon dioxide than other porous substances do.

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  2. Earth

    Gunning for the Gut: Tiny particles might fight invasive zebra mussels

    By modifying a technique used to flavor foods, researchers have made a substance that poisons the zebra mussel.

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  3. Health & Medicine

    Alzheimer Clue: Busy brain connections may have downside

    Brain areas that are chronically activated have excess amyloid beta, the waxy protein associated with Alzheimer's disease.

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  4. 19626

    It seems to me irresponsible even to float the idea, as neurologist David M.