Social proof and the idea of a nation as an imagined community.

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Essentially, the bill would move to the front of the visa line any immigrant with a business idea and proof of investor interest.

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The arsenic-eating bacterium, written up in the current issue of Science, provides a muted proof of concept for this idea.

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He said that the research represents a "proof of concept" for the idea that lower cholesterol is better.

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Alan Tall of Columbia University says the results were "interesting and exciting, " and, moreover, were a "proof of concept" for the idea that raising HDL cholesterol can move plaque out of the arteries.

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They seek social proof, some visible indication, that others are buying into an idea or activity.

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But it does provide a proof of concept for using genes to predict if drugs work, an idea called pharmacogenomics.

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But psychiatry as a field has been skeptical of the idea of people being addicted to behaviors, because there is not proof that a bad habit is the same kind of biological issue as a dependence on alcohol, nicotine, or heroin.

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