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  1. Health & Medicine

    Mice reveal new, severe form of allergy

    Researchers studying an induced condition in mice akin to multiple sclerosis have stumbled across a situation in which mice suffered a severe allergic reaction to injected protein fragments that mimic one their own proteins.

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  2. Roach females pick losers with good scents

    Male Tanzanian cockroaches lose fights if they have too much of a particular pheromone, but females find it alluring.

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  3. Health & Medicine

    Fat harbors cells that could aid joints

    Researchers have found a way to trick fat into generating cartilage.

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  4. Physics

    Run-of-the-mill compound becomes superstar

    The discovery that simple, common magnesium diboride can conduct electric current without resistance and does so at a surprisingly high temperature has sent physicists racing to understand its properties and to try to improve upon them.