Central banks in the U.S. and Japan, in an effort to boost economic growth, have bought bonds aggressively to reduce yields, which move in the opposite direction of prices.

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Given this relationship, absent tremendous global market stress, gold generally tends to move in an opposite direction from the U.S. dollar, or more specifically, the U.S. dollar index.

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Accusations of chucking have dogged Murali's career, particularly regarding his doosra, a ball delivered with something close to an off-spinner's action but turning in the opposite direction, from leg to off.

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But at some point, the pendulum reaches an extreme and begins to swing in the opposite direction.

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But the rest of the world, especially Asia, is going in exactly the opposite direction, projected to use an additional billion tons of coal each year by 2016.

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It explained that this was "because the previous train, an engineers' on-track machine, had passed through the crossing in the opposite direction to normal".

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"People would then know when an accredited person was getting close to them and would be able to scarper in the opposite direction, " he added.

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