1107 GMT - The U.S. dollar's gains accelerate moderately in European midday as Treasury yields rise, with the currency reacting positively to Federal Reserve Chairman Kevin Warsh's speech at the Jackson Hole symposium last Friday, Trade Nation's David Morrison says in a note. "Warsh left no one in any doubt that the U.S. central bank's focus was on getting inflation back to its 2% target, as measured by core PCE," the senior market analyst says. The latest print of core PCE came in at 3.3%, so "the Fed has quite a big job on its hands," Morrison says. The DXY dollar index rises 0.2% to 99.606.