"This is an exciting study showing that tissue engineering can be a viable option for complex urethral repairs, " said David A. Vorp, a professor of bioengineering and cardiothoracic surgery at the University of Pittsburgh, who was not involved with this study.

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Taylor Knoblock, 24, said he enrolled in Cooper Union's chemical engineering graduate program because it was a free option when he couldn't find employment after receiving his undergraduate degree there.

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It said the underpass option would be more expensive and would result in "significant engineering problems... and regular maintenance".

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Stovanovich, a computer engineering and electrical engineering double major gives up half a foot to Matthews, but he's the only option.

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The compelling argument is that out of 50, 000 US graduate school and PhD graduates annually, 17, 000 return back to their homeland because no appropriate visa option exists for them to stay in the US to run a startup or take on engineering jobs.

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