Engine Lease Finance Corp., Shannon-based aircraft engine lessor, has been purchased by BTM Capital Corp. of Boston, which is part of the Bank of Tokyo-Mitsubishi group. The seller is Potomac Capital Investment Corp. of. Howell Public Schools Mi The Supreme Court on Tuesday upheld a state electorate’s right to ban the use of race in public university. considered the University of Michigan’s use of race-based preferences in its undergraduate and…