Dr Greenfield has forty four years of experience in the computer and engineering industries; twelve years in teaching at the university graduate and undergraduate levels; thirty two years in project support including hardware, software, and management. Much of this experience is gained while working within university and governmental medical centers and hospitals.
He has a BE and an MS in Electrical Engineering from New York University (NYU) and an MS and a DSc in Computer Science from Washington University (WU) in Saint Louis. He is continuously registered as a Professional Engineer in Saskatchewan since 1993. During his undergraduate years, he became interested in digital computers and worked in an electrocardiography research project at the Department of Medicine, NYU Medical Center. This association continued through his graduate education at NYU, funded by a National Institutes of Health (NIH) Biomedical Engineering Training Program Fellowship.
He was awarded a Commission in the US Public Health Service and assigned to the Division of Computer Research and Technology, NIH, while taking a leave of absence from graduate studies. At NIH he designed, specified, purchased, and managed the construction of real-time biomedical acquisition equipment.
After fulfilling his military obligation, he resumed his education in computer science and biomedical engineering at the Sever Institute of Washington University where he also worked at the Biomedical Computer Laboratory (BCL) of the School of Medicine as a Research Assistant for nine years. His graduate course work included eclectic titles such as; Introduction to Biomechanics, Biomedical Applications of Computers, Engineering Aspects of Healthcare, Surgical Techniques, Hospital Management, Methods of Biomedical Statistics, and Physiology (for medical students).
In Saint Louis he was introduced to MUMPS in 1972. The majority of his doctoral dissertation involved clinical computer information systems in ophthalmology, radiology, medical librarianship, and primary health care delivery. After receiving his doctoral degree, he continued in his position as a Research Assistant in the BCL, was appointed a Research Assistant Professor in Ophthalmology, and continued his work developing and managing ophthalmologic information systems.
He joined the Veterans Administration Medical Center in Albany, NY as a computer specialist and worked on hospital-wide computer applications. These included management, psychological, ECG, and nuclear medicine applications. In this hospital, all computer systems were based within the Nuclear Medicine Department.
He taught at Cleveland State University (CSU) and consulted with the Case Western Reserve University School of Medicine and private clients. In 1982, he moved to Regina and was at the University of Regina until 1987, teaching, managing a Unix system, and serving on university committees for computing and library services. His funded research was on the development of a computer communications network for rural health care practitioners.
In Regina his diverse consulting assignments included teaching, research, technical support for desktop publishing, MUMPS-based applications, diet calculations, ROM-based SCSI disk drivers, and communications programs. The programming projects incorporated significant machine- and systems-level coding on the Macintosh, the PC, and VAX/VMS in Pascal, C, and assembler. In turn, he represented the MUMPS Development Committee memberships of WU, the Albany VA Medical Center, CSU, the University of Regina, and Computer Consulting.
In Philadelphia he taught graduate computer science courses at Villanova University from 1997 through 2002, mostly in telecommunications and Internet topics.
His professional interests are in the areas of telecommunications (including digital radio and the Internet), microcomputers (especially the Macintosh and PC), Unix systems, and medical, library, and telecommunications applications of computing.
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Updated on July 24, 2010 by ve5dsc@rac.ca.