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Cooks and servers, scientists and sales reps — those are some of the workers who say they perform better after drinking coffee. People who work as nurses, journalists, and teachers also say they're more effective if they have coffee, in a survey from Dunkin Donuts and CareerBuilder.

Using silicon, magnesium and a special type of silk, scientists have created electronic circuits that dissolve in liquid. Electronics like these could be useful in future implantable medical devices.

That rate is in line with earlier statements the candidate made about how much he paid in taxes last year. He's also releasing a summary of his taxes from the past 20 years — which may not satisfy Democrats who want him to offer more details.

Pundits and reporters, step aside — we have poets with their thoughts on Wednesday night's presidential debate. One from the right, Mark Steyn, and the other from the left, Calvin Trillin.

Senegal's capital of Dakar remains jittery, with demonstrators and police locked in running street battles. Some of the protests have been led by rap artists, who are mobilizing the youth and putting pressure on Senegal's leader to step down.

When the singers released remixes featuring each other this week, the Internet's jaw dropped.

"Peng Liyuan has been touted now as sort of the Carla Bruni of China," says one music critic. She's regularly featured on Chinese television's blockbuster Spring Festival Gala, and she's also a major general in China's People's Liberation Army.

If you didn't get the right answer, don't feel bad. A precocious Ohio girl who asked teachers and kindergartners to look at 20 matched pairs of medicines and candies found they were wrong around 30 percent of the time.

Clashes between police and Occupy Wall Street protesters in Oakland, Calif., made news this week. But the violence has less to do with the Occupy movement than with the long history of law enforcement troubles in that city.

The new U.S. food safety law will require foreign growers and manufacturers to prove their products are safe before they're shipped to the United States. Food and Drug Administration officials went to China to explain what that country's problem-plagued food system will have to do to measure up.