You either need a very long time horizon to buy a small amount or be an active trader that tests levels and takes trades quickly based on the headlines and price action.

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Initial deployment of the service began in 2009 and active discussion and trial tests will continue in 2010.

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There are various tests of active involvement, but the most common is working at least 500 hours a year.

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The hope is that by telling buyers which herbs are valuable for what, which characteristics to seek when making a purchase, and which chemical tests identify active ingredients, the new pharmacopoeia will provide that boost.

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The microbe-free animals were more active and, in specific behavioral tests, were less anxious than microbe-colonized mice.

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The ACTIVE study also tested the time it took to do daily activities, like preparing a meal, and performance tests, such as reading price tables to pick the best telephone provider, Dr. Wolinsky said.

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