Uncategorized

  1. Health & Medicine

    Vacillating stem cells

    Unsuspected, ever-changing variation among stem cells in bone marrow helps determine the development path the cells will follow during differentiation.

    By Patrick Barry
  2. Humans

    Butting out together

    Cigarette smokers who know one another tend to kick the habit all at once, highlighting the importance of social forces in smoking-cessation treatment.

    By Bruce Bower
  3. Chemistry

    Slippery when dry

    Surfaces that mimic the back of an African beetle can collect water from fog.

    By Davide Castelvecchi
  4. Health & Medicine

    Trust again

    The ability to trust others even after violations of trust is regulated by the hormone oxytocin.