“…Researchers can evaluate the possibility of using the number of citations and introduce the Hirsch h index, Hirsch h core, g index, R index, AR index, and Jin A index indices to determine the effectiveness of sci entific activities; test existing indexes of scientific con tent (WoS, Scopus, GoogleScholar, etc. ); research features for evaluating their effectiveness, particularly in the humanities, social, natural sciences, and techni cal areas [1][2][3][4][5]; study age and gender aspects of effi ciency and productivity in science [6][7][8]; and analyze inter disciplinary interactions [9,10] as well as the possibility of using indices for comparison of national science and scientific specializations [11][12][13][14].…”