He epitomized the best characteristics of America, working his way up from humble beginnings to achieve great wealth and the esteem of those who knew him.

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Research on work design and job characteristics clearly indicates that a key driver of the effectiveness of remote working is the structure of the work.

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But while DARPA's "Terminator 2"-style morphing military robots may still be a long way off, many scientists are already working on robots that exhibit some of the characteristics required.

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It has all the characteristics of being a social business yet operates within closed walls, a contradiction that is working for them right now but might not as other companies offer customers more.

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