News

  1. Health & Medicine

    Statins’ structure blocks cholesterol

    X-ray crystallography shows that statins impede the build-up of cholesterol by physically blocking the binding site of an enzyme important for cholesterol production.

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  2. Earth

    Nations sign on to persistent-pollutants ban

    The United States joined 126 other nations in signing a treaty to ban or phase out a dozen persistent and toxic pollutants.

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  3. Ecosystems

    Parrot survey finds poaching but also hope

    The largest review yet of wild parrot nesting finds poaching worrisomely frequent but also sees cause for hope in the efects of a U.S. protection law.

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  4. Teens’ ADHD treatment gets low-dose boost

    Teenagers diagnosed with attention-deficit hyperactivity disorder may reap substantial academic benefits from treatment that combines behavioral training with low doses of stimulant medication.