Rather than installing automatic response systems, the plant would rely on employees to perform a series of complex manual actions, which the NRC has not authorized as a means of adequately protecting nuclear facilities in the event of a fire.

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Mr Magee's most famous client, however, was a more complex character whose actions, and motives, remain mysterious.

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But Prof Hoekstra added that the "modular" nature of the different behaviours that evolved separately in the two is the most suggestive finding: seemingly complex habits and actions may be built up from smaller, genetically-controlled behaviours.

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" It noted that "the technical complexity of the medical issues" doesn't apply since "medical malpractice actions are by their nature complex, warranting extensive and sophisticated preparation.

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Like many tax actions, calculating SEPP can be complex.

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The lesson of all of this is that by taking apart the components of a complex problem and making each part simpler and easier, you can help people create sequences of actions that will build new habits and defeat old one.

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Complex yet simple, it asks the least of the user while quietly going through a myriad of actions itself, providing service when called upon.

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