On the effectiveness of scientific activities in the priority fields of science,technology, and engineering

In this article, the author describes the history of dissertations in the natural and other branches of science that were defended in Russia over the past 20 years. Based on publications, an analysis is made of the efficiency of scientific activities in several priorityfields of science, technology, and engineering, including rational environmental management, the nanosystem industry, and information and telecommunications systems, as well as space and transport systems.