Uncategorized

  1. Health & Medicine

    Study bolsters head injury, Alzheimer’s link

    Veterans who suffered a moderate or severe concussion during World War II face a heightened risk of Alzheimer's disease when they reach old age.

    By Nathan Seppa

  2. It’s a boy! It’s a girl! It’s a mosaic embryo

    Using a new technique to examine chromosomes of in vitro fertilization (IVF) embryos at the time they're implanted in the womb, researchers report abnormalities never seen later in development, possibly explaining why IVF has a low efficiency.

    By Laura Sivitz
  3. Math

    Anatomy of a Bead Creature

    Beadwork offers a novel view of hyperbolic geometry.

    By Ivars Peterson
  4. Math

    Functions on Display

    To mathematicians, the term “function” has a specific meaning.