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Impact factor. 19.684 (2021) ... Nature Physics is a monthly peer-reviewed scientific journal published by Nature Portfolio. It was first published in October 2005 ...
Nature ' s impact factor, a measure of how many citations a journal generates in other works, was 42.778 in 2019 (as measured by Thomson ISI). [1] [35] [36] However, as with many journals, most papers receive far fewer citations than the impact factor would indicate. [37] Nature's journal impact factor carries a long tail. [38]
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 rule of thumb, each field should be represented by fewer than ten positions, chosen by their impact factors and other ratings. Note : there are many science magazines that are not scientific journals, including Scientific American , New Scientist , Australasian Science and others.
For instance, most papers in Nature (impact factor 38.1, 2016) were only cited 10 or 20 times during the reference year (see figure). Journals with a lower impact (e.g. PLOS ONE, impact factor 3.1) publish many papers that are cited 0 to 5 times but few highly cited articles. [21]
The impact factor relates to a specific time period; it is possible to calculate it for any desired period. For example, the JCR also includes a five-year impact factor, which is calculated by dividing the number of citations to the journal in a given year by the number of articles published in that journal in the previous five years. [14] [15]
A number of factors could impact how much magnesium someone needs. ... ”The relative low cost and generic nature of magnesium supplementation may not provide sufficient motivation for extensive ...
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]