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PubMed. PubMed is a free database including primarily the MEDLINE database of references and abstracts on life sciences and biomedical topics. The United States National Library of Medicine (NLM) at the National Institutes of Health maintains the database as part of the Entrez system of information retrieval.
Active. 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 ...
PubMed Central. PubMed Central (PMC) is a free digital repository that archives open access full-text scholarly articles that have been published in biomedical and life sciences journals. As one of the major research databases developed by the National Center for Biotechnology Information (NCBI), PubMed Central is more than a document repository.
An academic journal or scholarly journal is a periodical publication in which scholarship relating to a particular academic discipline is published. They serve as permanent and transparent forums for the presentation, scrutiny, and discussion of research.
Scientific journals contain articles that have been peer reviewed, in an attempt to ensure that articles meet the journal's standards of quality and scientific validity. [1] Although scientific journals are superficially similar to professional magazines (or trade journals), they are actually quite different.
Open access can be applied to all forms of published research output, including peer-reviewed and non peer-reviewed academic journal articles, conference papers, theses, [ 5 ] book chapters, [ 1 ] monographs, [ 6 ] research reports and images. [ 7 ]
Scientific literature can include the following kinds of publications: [1] Scientific articles published in scientific journals. Patents in the relevant subject (for example, biological patents and chemical patents). Books wholly written by one author or a few co-authors. Edited volumes, where each chapter is the responsibility of a different author or group of authors, while the editor is ...
By October 2015 the database contained: 1,249 journals 39,651 issues (journal numbers) 573,525 research articles 13,005,080 citations (sum of the number of items in each article's reference list) from different countries, universally accessible for free open access, in full-text format. [4] The SciELO Project's stated aims are to "envisage the development of a common methodology for the ...