Science and technology

Associated Press
FILE- In this Friday, May 18, 2012, file photo, Passers-by are reflected in the window of the Nasdaq media center as they view reports of trading activity on Facebook's stock on the Nasdaq stock market in New York. It’s been a month since Facebook’s IPO fell flat and in that time, the market for initial public offerings has gone cold. Venture capitalists say the fallout from Facebook’s rocky IPO is making technology companies more cautious about going public.(AP Photo/Bebeto Matthews, File)

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