Limanova said she did not know she was on camera when she made the gesture, an explanation that failed to impress the REN TV bosses considering the cameras were lit and she was not doing a practice run of the script.

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But some members of the Fed warn this practice may soon begin doing more harm than good.

WSJ: Economic Cycling With the Fed's Janet Yellen

In practice, what the new Republicans are doing is the reverse of what Mr Clinton did to them in 1996.

ECONOMIST: The selling of a candidate

True, the practice is illegal in much of the world, but the penalties for doing it are light compared with, say, dealing in illicit drugs.

ECONOMIST: Counterfeiting

Reading, going to work and navigating a busy life may be enough to maintain brain health, but lifting performance takes massive amounts of practice--learning a new language, taking regular music lessons, doing complex jigsaw puzzles--to produce enough chemicals to make synapses stronger.

FORBES: Innovation

The user can also create an audio recording of an obsessive thought to listen to on loop, in order to practice enduring it without doing a repetitive behavior.

CNN: Smartphone apps become 'surrogate therapists'

Innovation through less planning and more doing outmatched traditional business-model schools of thought, and this mode has become a best practice strategy in Silicon Valley and innovation hubs around the world.

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