Systematizing the array of dissertations in individual discipline based on chronologizing of Ph.D. defenses and title content-analysis. (Part 1)
Submitted by Гость (not verified) on Tue, 11/03/2026 - 17:38The author explores the array of doctoral dissertations in the area of forest engineering, forestry technologies and machines, submitted in the period of 1955–2022 (190 dissertations). The bibliometrical analysis enabled to specify 5 time periods differing in their dynamics (1955–1962; 1963–1970; 1971–1989; 1990–1999; 2000–2022). Before 1993, there were two defense hubs, namely Moscow and Leningrad (now St. Petersburg); after 1993, regional hubs emerged. In 1993–2022, 68% dissertations were defended in the regions outside Moscow and St.