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According to Journal Citation Reports, the journal has a 2022 impact factor of 9.4. [1] PNAS is the second most cited scientific journal, with more than 1.9 million cumulative citations from 2008 to 2018. [2] In the past, PNAS has been described variously as "prestigious", [3] [4] "sedate", [5] "renowned" [6] and "high impact". [7]
v. t. e. The h-index is an author-level metric that measures both the productivity and citation impact of the publications, initially used for an individual scientist or scholar. The h -index correlates with success indicators such as winning the Nobel Prize, being accepted for research fellowships and holding positions at top universities. [ 1]
The simplest journal-level metric is the journal impact factor, the average number of citations that articles published by a journal in the previous two years have received in the current year, as calculated by Clarivate. Other companies report similar metrics, such as the CiteScore, based on Scopus.
Indexing. ISSN. 0369-8211 (print) 2250-1746 (web) Links. Journal homepage. Proceedings of the National Academy of Sciences, India Section B: Biological Sciences is a peer-reviewed scientific journal of biological science. It is published by Springer on behalf of National Academy of Sciences, India four times a year, and is edited by Amit Ghosh .
The impact factor ( IF) or journal impact factor ( JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as indexed by Clarivate's Web of Science . As a journal-level metric, it is frequently used as a proxy ...
There’s some research that suggests red wine might be the best choice for people who want to drink occasionally. In fact, Pabla says, some small studies have found that 1 to 3 grams of red wine ...
Author-level metrics differ from journal-level metrics which attempt to measure the bibliometric impact of academic journals rather than individuals. However, metrics originally developed for academic journals can be reported at researcher level, such as the author-level eigenfactor [ 4 ] and the author impact factor.
The Eigenfactor score is intended to measure the importance of a journal to the scientific community, by considering the origin of the incoming citations, and is thought to reflect how frequently an average researcher would access content from that journal. [2] However, the Eigenfactor score is influenced by the size of the journal, so that the ...