sentences:  Mairson was a Postdoctoral researcher at INRIA Rocqencourt from 1984 to 1985, at Stanford University in 1985, and at the University of Oxford in 1986.He held a Visiting Professor position from 1999 to 2001 at Boston University.From 2005 to 2007, Mairson has served as the Chair of the Faculty Senate at Brandeis.