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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.
This obscure terminology is a hold-over from a late nineteenth century model of stellar evolution, which supposed that stars were powered by gravitational contraction via the Kelvin–Helmholtz mechanism, which is now known to not apply to main-sequence stars. If that were true, then stars would start their lives as very hot "early-type" stars ...
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 ...
California Gov. Gavin Newsom and state leaders reversed course on a plan to place a crime-focused initiative on the November ballot a day after announcing it. In a statement released Tuesday night ...
Semantic Scholar is a research tool for scientific literature powered by artificial intelligence. It is developed at the Allen Institute for AI and was publicly released in November 2015. [2] Semantic Scholar uses modern techniques in natural language processing to support the research process, for example by providing automatically generated ...
A papyrus fragment containing the beginning of the Atlantid Electra's family from book 3 or 4 (Cat. fr. 177 = P.Oxy. XI 1359 fr. 2, second century CE, Oxyrhynchus). The Catalogue of Women (Ancient Greek: Γυναικῶν Κατάλογος, romanized: Gunaikôn Katálogos)—also known as the Ehoiai (Ancient Greek: Ἠοῖαι, romanized: Ēoîai, Ancient: [ɛː.ôi̯.ai̯]) —is a ...
Two volumes of a catalogue of the remaining works were published by Erich Hermann Mueller von Asow (1892–1964) in 1959. After von Asow's death, Franz Trenner (d. 1993) and Alfons Ott (d. 1976) published the third volume, based on von Asow's notes; this catalogue lists 323 titles, including Strauss's literary writings.
The standard model is a quantum field theory, meaning its fundamental objects are quantum fields, which are defined at all points in spacetime. QFT treats particles as excited states (also called quanta) of their underlying quantum fields, which are more fundamental than the particles. These fields are.