Sci | 合法醫療器材資訊網

Sci-Hubisashadowlibrarywebsitethatprovidesfreeaccesstomillionsofresearchpapersandbooks,withoutregardtocopyright,bybypassingpublishers'​ ...

Scientific research paper file sharing website

Sci-Hub is a shadow library website that provides free access to millions of research papers, regardless of copyright,[4] by bypassing publishers paywalls in various ways.[2][4][5][6] Unlike Library Genesis, it does not provide access to books. Sci-Hub was founded in Kazakhstan by Alexandra Elbakyan in 2011, in response to the high cost of research papers behind paywalls (see Serials crisis). The site is extensively used worldwide.[4][5] In September 2019, the sites operator(s) said that it served approximately 400,000 requests per day.[7] In addition to its intensive use, Sci-Hub stands out among other shadow libraries because of its easy use/reliability and because of the enormous size of its collection; a 2018 study estimated that Sci-Hub provided access to 95% of all scholarly publications with issued DOI numbers.[4] On 15 July 2022, Sci-Hub reported that its collection comprised 88,343,822 files.[8] Since December 2020, th...