PubMed Central is a free digital repository that archives publicly accessible full-text scholarly articles that have been published within the biomedical and life sciences journal literature. As one of the major research databases within the suite of resources that have been developed by the National Center for Biotechnology Information, PubMed Central is much more than just a document repository. Submissions into PMC undergo an indexing and formatting procedure which results in enhanced metadata, medical ontology, unique identifiers which all enrich the XML structured data for each article on deposit. Content within PMC can be interlinked to many other NCBI databases and accessed via Entrez search and retrieval systems, further enhancing the public's ability to discover and build upon this portfolio of biomedical knowledge. PubMed Central is distinct from PubMed. PubMed Central is a free digital archive of full articles, accessible to anyone from anywhere via a web browser. Conversely, although PubMed is a searchable database of biomedical citations and abstracts, the full-text article physically resides elsewhere.
As of December 2018, the PMC archive contained over 5.2 million articles, with contributions coming directly from publishers or authors depositing their own manuscripts into the repository per the NIH Public Access Policy. Older data shows that from Jan 2013 to Jan 2014 author-initiated deposits exceeded 103,000 papers during this 12-month period. PMC identifies about 4,000 journals which now participate in some capacity to automatically deposit their published content into the PMC repository; some participating publishers will delay the release of their articles on PubMed Central for a set time after publication, this is referred to as an "embargo period", can range from a few months to a few years depending on the journal. However, PubMed Central is a key example of "systematic external distribution by a third party", still prohibited by the contributor agreements of many publishers. Launched in February 2000, the repository has grown as the NIH Public Access Policy is designed to make all research funded by the National Institutes of Health accessible to anyone, and, in addition, many publishers are working cooperatively with the NIH to provide free access to their works.
In late 2007, the Consolidated Appropriations Act of 2008 was signed into law and included a provision requiring the NIH to modify its policies and require inclusion into PubMed Central complete electronic copies of their peer-reviewed research and findings from NIH-funded research. These articles are required to be included within 12 months of publication; this is the first time the US government has required an agency to provide open access to research and is an evolution from the 2005 policy, in which the NIH asked researchers to voluntarily add their research to PubMed Central. A UK version of the PubMed Central system, UK PubMed Central, has been developed by the Wellcome Trust and the British Library as part of a nine-strong group of UK research funders; this system went live in January 2007. On 1 November 2012, it became Europe PubMed Central; the Canadian member of the PubMed Central International network, PubMed Central Canada, was launched in October 2009. The National Library of Medicine "NLM Journal Publishing Tag Set" journal article markup language is available.
The Association of Learned and Professional Society Publishers comments that "it is to become the standard for preparing scholarly content for both books and journals". A related DTD is available for books; the Library of Congress and the British Library have announced support for the NLM DTD. It has been popular with journal service providers. With the release of public access plans for many agencies beyond NIH, PMC is in the process of becoming the repository for a wider variety of articles; this includes NASA content, with the interface branded as "PubSpace". Articles are sent to PubMed Central by publishers in SGML, using a variety of article DTDs. Older and larger publishers may have their own established in-house DTDs, but many publishers use the NLM Journal Publishing DTD. Received articles are converted via XSLT to the similar NLM Archiving and Interchange DTD; this process may reveal errors. Graphics are converted to standard formats and sizes; the original and converted forms are archived.
The converted form is moved into a relational database, along with associated files for graphics, multimedia, or other associated data. Many publishers provide PDF of their articles, these are made available without change. Bibliographic citations are parsed and automatically linked to the relevant abstracts in PubMed, articles in PubMed Central, resources on publishers' Web sites. PubMed links lead to PubMed Central. Unresolvable references, such as to journals or particular articles not yet available at one of these sources, are tracked in the database and automatically come "live" when the resources become available. An in-house indexing system provides search capability, is aware of biological and medical terminology, such as generic vs. proprietary drug names, alternate names for organisms and anatomical parts. When a user accesses a journal issue, a table of contents is automatically generated by retrieving all articles, editorials, etc. for that issue. When an actual item such as an article is reached, PubMed Central converts the NLM markup to HTML for delivery, provides links to related data objects.
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The 2013 Campeonato Paraense de Futebol was the 101st edition of Pará's top professional football league. The competition began in November 10, 2012 and ended on May 12, 2013. Paysandu won the championship by the 45th time, while Abaeté and Bragantino were relegated due to withdrawing; the competition has three stages. On the First stage, 8 teams play a single round-robin; the two teams with the worst campaign on this stage are relegated to the state's second division. Due to the withdrawal of Abaeté and Bragantino, both teams were relegated. On the Second stage, there are two rounds; each round is a round-robin. The four best teams in each round advances to a playoff, so the winner of the round can be found. On the Final stage, each round winner plays in the final. If the same team wins both round, that team is the champion; the champion, the runner-up and the 3rd-placed team qualify to the 2014 Copa do Brasil. The best team who isn't on Campeonato Brasileiro Série A, Série B or Série C qualifies to Série D. Abaeté and Bragantino were relegated due to withdrawing.
FK Hvězda Cheb is a Czech football club, playing in the town of Cheb. The club was founded in 1951 and refounded in 2001 after a bankruptcy in 1996; the club played for 13 consecutive seasons in the Czechoslovak First League between 1979 and 1992, played three seasons in the Czech First League, finishing fourth in the 1993–94 season. The club played in the third-tier Bohemian Football League between 2006 and 2008, it plays in the Czech Fourth Division. The club had appearances in Europe playing the Mitropa Cup in 1980 and in Intertoto Cup 1981, in which it won its group; the club announced a change in its name from Union Cheb to Hvězda Cheb in 2011. 1951: VSJ Sokolovo Cheb 1952: DSO Rudá Hvězda Cheb 1966: VTJ Dukla Hraničář Cheb 1972: TJ Rudá Hvězda Cheb 1990: SKP Union Cheb 1994: FC Union Cheb 2011: FK Hvězda Cheb Czechoslovak and Czech international players Jozef Chovanec, 1979–1981, 52 caps, 4 goals Vladimír Hruška, 1979–1981, 3 caps, 1 goal Zdeněk Koubek, 1979–1983, 5 caps Pavel Kuka, 1987–1989, 89 caps Radim Nečas, 1995–2000, 4 caps Lubomír Pokluda 1979 – 1984, 4 caps, 1980 olympic gold medalist Petr Samec, 1992–1995, 9 Caps, 2 goals Horst Siegl, 1989–1990, 23 caps, 7 goals Jaroslav Šilhavý, 1990–1991, 4 caps Official website