Tokyo stocks were mixed Tuesday morning as tech issues tracked overnight declines by their U.S. counterparts, but falls were limited across the board due partly to a pause in the yen’s appreciation against other currencies. The 225-issue Nikkei Stock Average fell 54.60 points, or 0.14 percent, from Monday to 38,055.62. The broader Topix index was up 8.43 points, or 0.32 percent, at 2,669.84. The U.S. dollar rose into the upper 144 yen range as it was bought back after a rapid fall the previous day amid speculation that the Federal Reserve will begin cutting interest rates in the near term, dea…