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  1. Plants

    Any Hope for Old Chestnuts?

    Next year will mark the 100th anniversary of the discovery of chestnut blight in the United States, but enthusiasts still haven't given up hope of restoring American chestnut forests.

    By Susan Milius
  2. Computing

    Minding Your Business

    By means of novel sensors and mathematical models, scientists are teaching the basics of human social interactions to computers, which should ease the ever-expanding collaboration between people and machines.

    By Peter Weiss

  3. 19237

    This article presumes that immanent-justice judgments are irrational. However, poor self-image and other psychosomatic stressors are already suspected of suppressing immunity. Many suspect that momentary emotional flare-ups precede cold and flu symptoms by a couple of days.