Michael A. Luther, Ph.D., has been appointed senior vice president of Discovery at AMRI, effective October 28, 2013. Dr. Luther will report to Thomas E. D’Ambra, Ph.D., president and chief executive officer. Dr. Luther succeeds Bruce J. Sargent, Ph.D., who will retire at the end of the year.   Dr. Luther will lead the company’s global discovery organization, which provides biology and chemistry services to the biopharmaceutical industry, with locations in the U.S., Singapore and Hyderabad,...