In recent work, Abramowicz has shown that added gravitational effects due to general relativity may alter the expected Newtonian gravitational relationships in such a way that the disk remains stable, indicating that it is possible that these predicted instabilities do not occur.
But it was (only in the early 1930's) that (federal legislation prohibiting a company from maintaining its own unions with company money) (eventually )allowed( the Brotherhood to become recognized as the porters' representative).