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  1. Life

    Gut bacteria may change the way many drugs work in the body

    A new survey of interactions between microbes and medications suggests that gut bacteria play a crucial role in how the body processes drugs.

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  2. Physics

    This tabletop device turns the quantum definition of a kilogram into a real mass

    The mini Kibble balance will measure 10 grams to an accuracy of a few ten-thousandths of a percent.

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  3. Climate

    The Southern Ocean may be less of a carbon sink than we thought

    The Southern Ocean’s ability to suck up much of the carbon that humans pump into the atmosphere is in question.