Uncategorized

  1. Health & Medicine

    Cell transplants combat diabetes in mice

    Scientists have successfully reversed diabetes in mice by harvesting immature pancreatic cells that make insulin from one mouse, growing them in culture, and transplanting them into a mouse with the disease, which then recedes.

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  2. Planetary Science

    Meteoric wallop may have diversified life

    A new study suggests that the evolutionary burst on Earth some 540 million years ago occurred around the time that cosmic debris began pummeling our planet at an increasing rate.

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  3. Materials Science

    Rice hulls could nourish Silicon Valley

    Scientists are developing ways to extract and purify the silicon that occurs naturally in rice hulls.