Uncategorized

  1. Health & Medicine

    Brain reorganizes to make room for math

    New research suggests that, as children learn arithmetic, the brain reorganizes dramatically as it shifts from handling only estimates of quantities to attaching precise quantities to symbolic numerals.

    By Bruce Bower
  2. Physics

    Standard model gets right answer for proton, neutron masses

    Correct calculation strengthens theory of quark-gluon interactions in nuclear particles.

    By Ron Cowen
  3. Space

    Water-ice deposits found beneath Martian hills

    Using radar from an orbiting spacecraft to penetrate the hidden recesses of Mars, planetary prospectors have uncovered vast reserves of water-ice buried beneath rocky debris.

    By Ron Cowen
  4. Health & Medicine

    Treat HIV-positive babies from the start

    Babies who are born infected with HIV from their mothers should be treated for the virus as soon as possible, even before symptoms begin, a study finds.