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Rice production by country (2019) This is a list of countries by rice production in 2022 based on the Food and Agriculture Organization Corporate Statistical Database. The total world rice production for 2022 was 776,461,457 [1] metric tonnes. In 1961, the total world production was 216 million tonnes.
Journal Citation Reports (JCR) is an annual publication by Clarivate. [1] It has been integrated with the Web of Science and is accessed from the Web of Science Core Collection. It provides information about academic journals in the natural and social sciences, including impact factors. JCR was originally published as a part of the Science ...
In any given year, the CiteScore of a journal is the number of citations, received in that year and in previous three years, for documents published in the journal during the total period (four years), divided by the total number of published documents (articles, reviews, conference papers, book chapters, and data papers) in the journal during the same four-year period: [3]
The countries with the highest share of articles published in scientific journals according to the Nature Index 2024, which is valid for the calendar year 2023. [2] The "count" is the total number of articles to which nationals of the country have contributed.
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.
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.
The Nature Index is a database that tracks institutions and countries/territories and their scientific output since its introduction in November 2014. [1] Originally released with 64 natural-science journals, the Nature Index expanded to 82 natural-science journals in 2018, then added 64 health-science journals in 2023.
A journal's SJR indicator is a numeric value representing the average number of weighted citations received during a selected year per document published in that journal during the previous three years, as indexed by Scopus. Higher SJR indicator values are meant to indicate greater journal prestige.