News

  1. Health & Medicine

    Patch guards against Montezuma’s revenge

    A patch worn on the skin delivers a vaccine against a form of Escherichia coli that causes traveler's diarrhea.

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  2. Health & Medicine

    Additives may make youngsters hyper

    Common food colorings and the preservative sodium benzoate have the potential to foster hyperactivity and inattentiveness in children, a new study finds.

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  3. Chemistry

    Hydrogen makers

    A new bioreactor produces hydrogen hundreds of times as fast as previous prototypes.

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  4. ADHD kids show slower brain growth

    A new brain-scan investigation indicates that attention-deficit hyperactivity disorder involves substantial delays in children's brain development.

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  5. Anthropology

    Ancient-ape remains discovered in Kenya

    Newly unearthed fossils of a 9.8-million-year-old ape in eastern Africa come from a creature that may have evolved into a common ancestor of African apes and humans.

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  6. Health & Medicine

    Biohazard: Smoking before or after pregnancy may harm daughters’ fertility

    Smoking before pregnancy or during breastfeeding might impair the female offspring's fertility, a study in mice shows.

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  7. Physics

    Einstein Unruffled: Relativity passes stringent new tests

    The moon's orbit and the dilated time of speeding atoms give new meaning to 'Einstein was right.'

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  8. Health & Medicine

    Wrong Way: HIV vaccine hinders immunity in mice

    An HIV vaccine hurts, not helps, the immune systems of mice, say scientists.

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  9. Materials Science

    Snappy Transition: Venus flytrap inspires new materials

    Inspired by the quick-shut action of the Venus flytrap, researchers have designed a patterned surface with microscale hills that can rapidly flip to form valleys.

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  10. Plants

    It Takes a Village: Tweaking neighbors reroutes evolution

    The other residents of a plant's neighborhood can make a big difference in whether evolutionary forces favor or punish a plant's trait.

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  11. Hold the Embryos: Genes turn skin into stem cells

    Scientists have found a way to convert a person's skin cells directly into stem cells without creating and destroying embryos.

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  12. Paleontology

    A toothy smile

    Nigersaurus boasted more than 500 teeth, arranged in rows across its mouth.

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