如何去网上查资料.ppt

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如何去网上查资料

Literature Searching What to do when a “Google” search is not enough? Song Yu syu@ Phone: 496-7279 Chemical Information Specialist Assist. Prof. of Library Sciences Purdue University To Warm Up … Ideas, common terms that we use when doing literature searches Search Operators, Wildcards, and Parentheses What are search operators? AND, OR, NOT, SAME, NEAR What are wildcards? ? = one character E.g. EN?OBLAST will search ENDOBLAST and ENTOBLAST * = zero to many characters E.g. Gene* will search Gene, Genes, General, Generation Combination of ? and * E.g. CH?M* will search CHEMISTRY, CHEMIST, CHEMICAL, CHEMIE, CHIMICA … Parentheses (A or B) and C, (B and C) not A What is in a citation? Author Title Source/journal Enumeration (volume/issue) Chronology (date) Pagination Cited/Citing Reference ?@#! Linking to the original cited paper Linking to papers which cite the same paper (Time Cited) Finding related papers Major Databases in Chemical Engineering COMPENDEX (OVID) SciFinder Scholar (CAS) Web Of Science (ISI) Major Databases in Chemical Engineering COMPENDEX (OVID) Major Databases in Chemical Engineering SciFinder Scholar (CAS) Major Databases in Chemical Engineering Web Of Science (ISI) Access to the Databases /eresources/index.html choose “By Title” COMPENDEX (OVID) Web based, need your Purdue ID SciFinder Scholar (CAS) Server/Client based Windows Terminal Server To download the primary client software, go to /wts Java client can not print and save your searches Web Of Science (ISI) IP based Off campus access Libraries Proxy server /proxy SciFinder Scholar Coverage back to 1907 by one search! CAplus. 1907 ~, +21.5 mil documents from +9000 journals--Updated daily with new citations, weekly with indexed records CASREACT. 1974+, +6 mil single and multi-step reactions CHEMCATS. +5.3 mil Commercial chemicals CHEMLIST. over 227,000 Regulated chemicals Registry. 1965+, 20.3 mil substances, 21.8 mil biosequences Medline. 1958+, 11 mil biomedical citations (

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