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  1. Materials Science

    Bonelike polymer supports stem cells

    A polymer scaffold that mimics the environment in which natural bone grows provides stem cells with the right cues to lay down new bone.

    By Alexandra Goho
  2. Materials Science

    Buckyballs store 1s and 0s in new memory device

    Scientists have created a material that stores bits of data in the soccer ball-shaped carbon molecules known as buckyballs.

    By Alexandra Goho
  3. Health & Medicine

    Colon scans reveal heart risk

    Virtual colonoscopy may offer the side benefit of identifying heart attacks that are waiting to happen.

    By Ben Harder
  4. Health & Medicine

    Trade Center cough is diagnosed

    Obstructions that trap air deep within the lungs may explain certain breathing difficulties among some people who worked at the site of the World Trade Center following Sept.