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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.
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.
The impact factors published in June 2021 are the 2020 impact factors. Pages in category "Articles with outdated impact factors from 2021" The following 200 pages are in this category, out of approximately 844 total.
When science journals were evaluated with a PageRank-based algorithm, however, the Journal of Biological Chemistry ranked first. [7] Using the Eigenfactor metric, the Journal of Biological Chemistry ranked 5th among all ISI-indexed journals in 2010. [8] The impact factor of the journal in 2021 was 5.486. [9]
While these journals still did not receive an impact factor until the next year, they did contribute citations to the calculation of other journals' impact factors. [ 4 ] [ 5 ] In July 2022, Clarivate announced that journals in the ESCI obtain an impact factor effective from JCR Year 2022 first released in June 2023.
In 2010, a criticism was voiced pointing toward certain deficiencies of the journal impact factor calculation process, based on Thomson Reuters Web of Science, such as: journal citation distributions usually are highly skewed towards established journals; journal impact factor properties are field-specific and can be easily manipulated by ...
Applied Sciences is a semi-monthly peer-reviewed open-access scientific journal covering all aspects of applied physics, applied chemistry, applied biology, and engineering, environmental, and earth sciences. It was established in 2011 and is published by MDPI.
The values for Nature journals lie well above the expected ca. 1:1 linear dependence because those journals contain a significant fraction of editorials. CiteScore was designed to compete with the two-year JCR impact factor, which is currently the most widely used journal metric. [7] [8] Their main differences are as follows: [9]