Students, professors and alumni get to tell New Jersey lawmakers what they think of a plan to merge Rutgers and Rowan universities and the University of Medicine and Dentistry of New Jersey. A joint legislative hearing will be held at Rowan's main campus in Glassboro today for the 11 a.m. hearing in the Chamberlain Student Center's Eynon Ballroom on Mullica Hill Road.  The hearing is expected to last four hours.