World stocks, US dollar down as markets await Fed

By Dion Rabouin NEW YORK (Reuters) - Stocks on major markets rose slightly from session lows in early afternoon trading on Wednesday after disappointing earnings from Apple and Twitter late Tuesday, while the U.S. dollar weakened ahead of a policy announcement by the Federal Reserve and oil prices rose to 2016 highs. Twitter tumbled more than 15 percent after first-quarter revenue lagged expectations. Gains in Boston Scientific, Boeing and Mondelez helped limit the losses with Wall Street stocks