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The site has been described as the most extensive Neolithic site in Ireland and is claimed to contain the oldest known field systems globally. [ 3 ] [ 4 ] Using various dating methods, it has been stated that the creation and development of the Céide Fields went back approximately 5500 years (~3500 BCE), [ 4 ] some 2,500 years before this type ...
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]
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]
Journal of Ancient History — 1937: 4 — — Journal of Anthropological Archaeology: Elsevier: 1982: 4 — 0278-4165: Journal of Anthropological Research [13] University of Chicago Press: 1937: 4 — Journal of Archaeological Method and Theory: Springer: 1978: 4: Hybrid: 1072-5369 (print) 1573-7764 (web) Journal of Archaeological Research [13 ...
The most famous ancient field system in Ireland is the Céide Fields, an extensive series of stone walls dating back to 3500 BC. Similar stone wall field systems dating back to the Atlantic Bronze Age are visible in western Ireland and on the Aran Islands. [6] [7]
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.
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.
Author-level metrics are citation metrics that measure the bibliometric impact of individual authors, researchers, academics, and scholars. Many metrics have been developed that take into account varying numbers of factors (from only considering the total number of citations, to looking at their distribution across papers or journals using statistical or graph-theoretic principles).