42 Scientific research; technological research and development services, namely, scientific research, analysis and testing in the fields of engineering, computer sciences, medicine, and architecture and research and development of technology for others in the field of engineering, computer sciences, medicine, and architecture; industrial research in the fields of science, engineering, computer sciences, medicine and architecture; technological research and development in the fields of science, engineering, computer sciences, medicine, architecture, namely, research and development of technology in the field of engineering, computer sciences, medicine and architecture