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Google Scholar is a freely accessible web search engine that indexes the full text or metadata of scholarly literature across an array of publishing formats and disciplines. . Released in beta in November 2004, the Google Scholar index includes peer-reviewed online academic journals and books, conference papers, theses and dissertations, preprints, abstracts, technical reports, and other ...
Growth of Library Genesis, 2009-2022. One of the goals of shadow libraries is to more readily disseminate academic content, especially papers from academic journals. [2] Academic literature has become increasingly expensive, as costs to access information created by scholars have risen dramatically in recent years, especially the cost of books. [4]
The Science Citation Index Expanded (previously titled Science Citation Index) is a citation index originally produced by the Institute for Scientific Information (ISI) and created by Eugene Garfield. The Science Citation Index (SCI) was officially launched in 1964, [ 1] and later was distributed via CD / DVD. [ 2]
The main academic full-text databases are open archives or link-resolution services, although others operate under different models such as mirroring or hybrid publishers. Such services typically provide access to full text and full-text search, but also metadata about items for which no full text is available.
The g-index is an author-level metric suggested in 2006 by Leo Egghe. [1] The index is calculated based on the distribution of citations received by a given researcher's publications, such that given a set of articles ranked in decreasing order of the number of citations that they received, the g-index is the unique largest number such that the top g articles received together at least g 2 ...
Emerging Sources Citation Index. The Emerging Sources Citation Index ( ESCI) is a citation index produced since 2015 by Thomson Reuters and now by Clarivate. According to the publisher, the index includes "peer-reviewed publications of regional importance and in emerging scientific fields". [ 1]
The Codex Vaticanus (The Vatican, Bibl. Vat., Vat. gr. 1209), designated by siglum B or 03 (in the Gregory-Aland numbering of New Testament manuscripts), δ 1 (in the von Soden numbering of New Testament manuscripts), is a Christian manuscript of a Greek Bible, containing the majority of the Greek Old Testament and the majority of the Greek New Testament.
An edition in Latin of the Almagestum in 1515. The Almagest / ˈ æ l m ə dʒ ɛ s t / is a 2nd-century mathematical and astronomical treatise on the apparent motions of the stars and planetary paths, written by Claudius Ptolemy (c. AD 100 – c. 170) in Koine Greek. [1]