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  1. Sleepyheads’ brains veer from restful path

    Unusual patterns of brain activity appear in sleep-deprived volunteers trying to solve verbal and mathematical problems.

    By Bruce Bower
  2. Humans

    R&D budget should ease biomed envy

    President Clinton's science budget for 2001 proposes to narrow a gap that's yawned in recent years between lusher funding for biomedicine and leaner support for the physical sciences.

    By Susan Milius
  3. Astronomy

    Solar magnetism: Memories are made of this

    Despite all its upheavals, the sun's magnetic field has a built-in memory, allowing it to return to its original position and configuration.

    By Ron Cowen

  4. Drugs order bacteria to commit suicide

    Seeking to explain how antibiotics work, scientists find a protein that commands bacteria to kill themselves.