Complex sentence: She went to obtain her Ph.D. in computer science from Columbia University in 1992, studying under professor Calton Pu Since October 1992, Dr. Massalin has held the position of research scientist for MicroUnity, where she is responsible for signal-processing modules and software architecture.
Split into simpler sentences: She went to obtain her Ph.D. in computer science from Columbia University in 1992, studying under professor Calton Pu. In October 1992, Dr. Massalin joined MicroUnity as a research scientist, where she is responsible for signal-processing modules and software architecture.