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The Science Citation Index (SCI) is a citation index originally produced by the Institute for Scientific Information (ISI) and created by Eugene Garfield. It was officially launched in 1964. It is now owned by Thomson Reuters.〔 〕〔 International microbiology 10.1 (2010): 65-69.〕〔 * Originally published by the Institute of Scientific Information in 1964 * Other titles in this document are: What is a Citation Index? , How is the Citation Index Prepared? , How is the Citation Index Used? , Applications of the Science Citation Index , Source Coverage and Statistics , and a Glossary.〕〔 〕 The larger version (Science Citation Index Expanded) covers more than 6,500 notable and significant journals, across 150 disciplines, from 1900 to the present. These are alternately described as the world's leading journals of science and technology, because of a rigorous selection process.〔 (【引用サイトリンク】title=Science Citation Index Expanded )〕 〔 (Springer-Verlag)〕〔 〕 The index is made available online through different platforms, such as the Web of Science〔(Thomson Reuters Web of Knowledge. Thomson Reuters, 2013. )〕 and SciSearch. (There are also CD and printed editions, covering a smaller number of journals). This database allows a researcher to identify which later articles have cited any particular earlier article, or have cited the articles of any particular author, or have been cited most frequently. Thomson Reuters also markets several subsets of this database, termed "Specialty Citation Indexes",〔 (【引用サイトリンク】title=Specialty Citation Indexes )〕 such as the Neuroscience Citation Index〔 (【引用サイトリンク】title=Journal Search - Science - )〕 and the Chemistry Citation Index.〔(【引用サイトリンク】title=Journal Search - Science - Thomson Reuters )〕 ==Chemistry Citation Index== The Chemistry Citation Index was first introduced by Eugene Garfield, a chemist by training. His original "search examples were based on () experience as a chemist".〔 In 1992 an electronic and print form of the index was derived from a core of 330 chemistry journals, within which all areas were covered. Additional information was provided from articles selected from 4,000 other journals. All chemistry subdisciplines were covered: organic, inorganic, analytical, physical chemistry, polymer, computational, organometallic, materials chemistry, and electrochemistry.〔Garfield, Eugene. "(New Chemistry Citation Index On CD-ROM Comes With Abstracts, Related Records, and Key-Words-Plus )." Current Contents 3 (1992): 5-9.〕 By 2002 the core journal coverage increased to 500 and related article coverage increased to 8,000 other journals.〔 (Chemistry Citation Index ). Institute of Process Engineering of the Chinese Academy of Sciences. 2003.〕 One 1980 study reported the overall citation indexing benefits for chemistry, examining the use of citations as a tool for the study of the sociology of chemistry and illustrating the use of citation data to "observe" chemistry subfields over time.〔 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Science Citation Index」の詳細全文を読む スポンサード リンク
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