For a man whose first ride over obstacles came less than 10 years ago, McCoy's achievements have been nothing short of phenomenal.

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At least the political obstacles to increasing production are less daunting than the technical ones.

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But while factors like fierce competition and less full-time hiring are difficult obstacles to overcome, there are definitive steps interns can take to increase their chances of landing a salary.

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They are less effective, of course, when there are obstacles within the U.N.

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Clean alternatives face regulatory and other obstacles, while petrol, which is less polluting than coal, attracts disproportionately high taxes.

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There was more freedom creatively, and less interference from the network, but also more internal obstacles.

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That is, if you don't feel like you belong, you are both less motivated and less likely to hang in there in the face of obstacles.

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Self-interest channels capital through, around or over obstacles, but prosperity flows most plentifully with its way less littered by regulatory rapids.

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Investors seemed less concerned by the risks of digging up minerals, more by potential political obstacles in the wake of the Canadian government's intervention to block BHP Billiton's hostile takeover of Potash Corporation.

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Other potential obstacles included declining flexible work arrangements that are perceived to be costly, less focus on diversity due to amplified performance pressure and increased competition over fewer open positions.

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