Prof. Arai has been ranked in the “Updated science-wide author databases of standardized citation indicators, a comprehensive list identifying the world’s top 2% of scientists,” updated on the 19th September, 2025, by Stanford University and Elsevier.
Reference:
Sophia University, Announcement
Sophia University, Faculty of Science and Technology, news (in Japanese)
Elsevier, “Updated science-wide author databases of standardized citation indicators”
(Updated on 2026/01/08)