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  1. Health & Medicine

    Glutamate glut linked to multiple sclerosis

    The chemical glutamate can overwhelm nervous-system cells called oligodendrocytes, adding to the nerve damage caused by wayward immune cells in multiple sclerosis.

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  2. Physics

    Electrical superball pulls itself together

    A strong electric field can drive tiny particles of a superconductor to bind themselves together into a remarkably sturdy ball.

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  3. Blood cues sex choice for parasites

    Malaria parasites shift their female-biased production of offspring toward a more evenly balanced sex ratio as an infection proceeds.

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  4. 19010

    This article describes the myelin sheath as “made of protein.” However, Merriam-Webster’s Collegiate Dictionary (online) provides the following definition of myelin: “a soft white somewhat fatty material …” (emphasis added).