It's a desperately complex puzzle to work out, either way.

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But fat is also a fundamental, necessary component of the human diet, and only one piece of the complex dietary puzzle.

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These days, though, sterling is a bit-player in the complex world currency puzzle.

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Given the many moving pieces in the complex, global investment puzzle, investors would be wise to revisit their asset allocation strategies to help ensure that they have the diversification in place to withstand potential periods of heightened volatility as well as the breadth of asset classes and sectors to help deliver risk adjusted growth opportunities.

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But research has made important advances in the past 25 years, and today science is slowly piecing together the puzzle of this complex and devastating disease.

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But considering who is flying is just one piece of the puzzle when it comes to the complex world of airfare pricing.

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The end result is a software program that uses a series of complex algorithms for filtering and aligning all the pieces of the transcriptome puzzle.

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