TORONTO — Strength in the technology sector helped Canada’s main stock index move higher in late-morning trading, while U.S. stock markets were mixed. The S&P/TSX composite index was up 73.10 points at 34,930.09. In New York, the Dow Jones industrial average was up 410.55 points at 52,715.79. The S&P 500 index was up 3.04 points at 7,486.27, while the Nasdaq composite was down 169.99 points at 25,870.04. The Canadian dollar traded for 70.50 cent…