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  1. Life

    Bring out your dead cells

    A protein called Six-Microns-Under turns certain fruit fly brain cells into undertakers to clear away dead neighbors.

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  2. Health & Medicine

    Treat ’em

    High blood pressure often goes untreated in people 80 and over, but a new study suggests that treatment extends survival.

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  3. Life

    Leaf clippings as protein factories

    Using plants to mass produce proteins for vaccines and other purposes may soon be possible without genetically engineering whole plants.

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  4. Tech

    Down with the transistor

    A new type of electronic component could shrink computer chips and make them more powerful.