Dear Colleagues, I am writing to inform that Dr. Raj Chakrabarti will leave his faculty position at Purdue and join CMU on August 1, 2012. As many of you are aware, his wife is a CMU faculty member - this move permits them to be in the same location. Please join me in wishing Raj the very best for the future. Arvind Arvind Varma R. Games Slayter Distinguished Professor Jay and Cynthia Ihlenfeld Head of Chemical Engineering Purdue University