The result is variation in the number of copies of that sequence, a variability we call CNV.

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Economics is prone to conditions that call to mind chaos theory: Given time and a sequence of interacting elements, two seemingly similar situations can lead to very different outcomes.

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Unlike crickets, which repeat just one call, a male magicicada must sing multiple songs in a specific sequence.

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It also includes the new HTC Fast Boot that enables people to quickly make a call or check emails by shortening the time taken to complete the power-up sequence.

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"I call on them to keep up the pressure in their efforts to identify a clear picture and a sequence of events, " he said in a statement.

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