AMHERST, Mass. - Dhandapani Venkataraman has joined the chemistry faculty at the University of Massachusetts. He received his bachelor''s degree from the University of Madras, India, and his master''s degree from the Indian Institute of Technology, also in Madras. He earned his Ph.D. in chemistry from the University of Illinois, Urbana-Champaign. Venkataraman, who is called "D.V.," was a postdoctoral researcher at Cornell University and the University of California, Berkeley, before joining the UMass faculty.