After Prologis Inc. completes its $8.4 billion acquisition of DCT Industrial Trust Inc., more than 55 people will be laid off. San Francisco-based Prologis (NYSE: PLD) announced in April that it was buying Denver-based DCT Industrial Trust and its 71 million-square-foot operating portfolio in a stock-for-stock transaction. After the deal closes, between 55 and 59 people will be laid off at DCT's Denver headquarters, according to a notice from the Colorado Department of Labor and Employment Worker...