USP Journal – by Michel Sitnik, on October 11th 2023.

A new survey released by Elsevier publisher points to the prominence of USP’s faculty in various areas.

On October 4, the 2023 edition of the Updated Science-wide Author Databases of Standardized Citation Indicators was published. The survey presents two possibilities: separately consulting the impact of research throughout a career or the specific impact in previous years. The 2022 list features 244 researchers from the University. In the Career Impact category, 211 researchers are from USP (University of São Paulo).

Now in its fifth edition, the ranking classifies the world’s most influential scientists in their respective fields. It is annually compiled by Professor John P. A. Ioannidis with researchers from Stanford University (USA), analyzing authors’ performance through Scopus records, one of the world’s most important databases of peer-reviewed scientific abstracts and citations, with over 85 million publications edited by more than 7,000 publishers.

The methodology employs the composite citation index (c-core), calculated based on six parameters: total number of citations (excluding self-citations); H-index; adjusted Schreiber co-authorship index (Hm-index); number of citations received in papers where the researcher is a sole author; number of citations received in papers where the researcher is the sole author or the first author; and number of citations received in papers where the researcher is the sole author, first author, or last author. The final selection includes the top 100,000 scientists with the highest score (c-score), plus the top 2% of scientists with the highest score (c-score) for each subfield of knowledge.

The result provides a public and standardized set of information about scientists, classified into 22 scientific fields and 174 subfields according to the standard Science-Metrix classification. Brazil appears with a total of 1,294 researchers, of which 528 (40.8%) are affiliated with institutions in São Paulo.