Grad Ring Committee chair Shahriar R. Khushrushahi G describes elements of the new Grad Rat to an audience of graduate students. The design was unveiled Wednesday evening in Walker Memorial. Allison M. Alwan May. 9, 2016 Facebook Twitter Reddit Print Grad Ring Committee chair Shahriar R. Khushrushahi G describes elements of the new Grad Rat to an audience of graduate students. The design was unveiled Wednesday evening in Walker Memorial. Allison M. Alwan