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  1. Health & Medicine

    Cord Blood to the Rescue: Infusions help babies with Hurler’s syndrome

    Umbilical cord blood transplants boost overall health and survival in patients with the rare hereditary condition called Hurler's syndrome.

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  2. Materials Science

    Next High-Tech Polishing Fluid: Tea—A new brew for the computer industry

    A concoction based on green tea may speed up manufacturing of precision components for computer hard-disk drives while reducing toxic wastes.

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  3. Waste Not: Proteins suggest ways to thwart muscle loss

    Researchers have now revealed details of the biochemical signals that drive muscle atrophy.

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  4. Paleontology

    Ancient Buzzing: German site yields early hummingbird fossils

    Excavations in Germany have yielded the only known fossils of hummingbirds from the Old World and by far the oldest such fossils unearthed anywhere.