Uncategorized

  1. Health & Medicine

    New Clues: Gene variations may contribute to MS risk

    Variants of two genes encoding immune system proteins may confer a higher risk for multiple sclerosis.

    By Nathan Seppa
  2. Materials Science

    Crinkle wrinkle

    Wrinkles reveal a thin film's thickness and elasticity.

    By Davide Castelvecchi
  3. Chemistry

    Soot Sense: Test tallies exposure to diesel pollution

    A chemical in urine reveals a person's exposure to diesel exhaust.

    By Alexandra Goho

  4. Fatherless Stem Cells: Scientific fraud involved an accidental advance

    Stem cells that discredited researcher Woo Suk Hwang claimed as the first example of human cloning actually came from embryos that contained only the mother's genetic material.