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Trends in Cancer: Trends Cancer: Oncology: Danielle Loughlin 2015 18.4 Trends in Cell Biology: Trends Cell Biol. Cell biology: Ilaria Carnevale 1991 19.0 Trends in Chemistry: Trends Chem. Chemistry: Jessica Pancholi 2019 15.7 Trends in Cognitive Sciences: Trends Cognit. Sci. Cognitive science: Lindsey Drayton 1997 19.9 Trends in Ecology & Evolution
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.
Trends in Analytical Chemistry is a peer-reviewed journal in analytical chemistry with reviews of the latest developments in the field. Its editor as of 2019 is Janusz Pawliszyn. The 2022 impact factor was 13.1.
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]
Calculated hematocrit is determined by multiplying the red cell count by the mean cell volume. The hematocrit is slightly more accurate, as the PCV includes small amounts of blood plasma trapped between the red cells. An estimated hematocrit as a percentage may be derived by tripling the hemoglobin concentration in g/dL and dropping the units. [11]
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]
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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]