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  1. Health & Medicine

    Microbes implicated in heart disease

    Viruses and bacteria besides chlamydia may play a role in human heart disease through an immune reaction to a heartlike protein they produce.

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  2. Health & Medicine

    Genes of cholera germ deciphered

    The bacterium that causes cholera has nearly 4,000 genes on its two circular chromosomes.

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  3. Feedback matters for getting the joke

    Plausible information about how others react to jokes colors a college student's own perception of the humor value of the material.

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  4. In gauging beauty, congeniality counts

    People judge others who have positive personality traits by more lenient physical criteria for attractiveness than they do those about whom they have no personality information.