Such technology had been perfected for the research community, and some organizations felt that in-flight simulation could be used for training.

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The technique has been perfected at the Duke University Medical Center, North Carolina, where 80% of toddlers who have been treated have survived.

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Some alternate-history novels have envisioned a separate Texas, notably 1990's "The Difference Engine" by William Gibson and Bruce Sterling, which explores what might have happened to the world had computers been perfected in Britain a century earlier.

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Seeing through salt hasn't yet been perfected.

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The Warner library has the largest number of classic 3D titles (15) of any studio and over the years we've been looking to release them, but not until now has the technology been perfected to the point we can do that.

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Of course, Brand as media company has been virtually perfected by Red Bull.

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Now that Agassi's methods have been refined and perhaps perfected by Djokovic and Nadal, it's a losing strategy to beat them at their own game.

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Surprisingly, the formula Spitzer perfected has not been followed by other state Attorneys General.

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The cuts were biggest in the Danish town of Billund, where Lego has been manufacturing ever since carpenter Ole Kirk Christiansen perfected his invention in 1932.

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Popeil's invention, Gladwell said, is "arguably the greatest rotisserie oven for the home ever made, " and it has been marketed by a third-generation member of a family that perfected the art of selling directly to consumers on the Jersey Shore boardwalk.

CNN: The man who can explain everything