[强烈推荐国外大学教授教你怎么查资料!!!

nullLiterature SearchingLiterature SearchingWhat to do when a “Google” search is not enough?nullSong Yu syu@purdue.edu Phone: 496-7279 Chemical Information Specialist Assist. Prof. of Library Sciences Purdue University To Warm Up …To Warm Up …Ideas, common terms that we use when doing literature searchesnullTERTIARY LITERATURE Information RetrievalStructure of the literature and Channels of CommunicationSearch Operators, Wildcards, and Parentheses 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 AABCNote: different databases have different wildcards. Check their Help file to find out what to use.What is in a citation?What is in a citation?Author Title Source/journal Enumeration (volume/issue) Chronology (date) Pagination Cui, Yi; Lieber, Charles M.. “Functional nanoscale electronic devices assembled using silicon nanowire building blocks." Science 291:5505 (2001): 851-3. Bibliographic InformationCited/Citing Reference ?@#&!Cited/Citing Reference ?@#&!Linking to the original cited paper Linking to papers which cite the same paper (Time Cited) Finding related papers19941991199219871988195719841982198819871957Known PaperCited PaperNew paper retrieved via cited reference searchingMajor Databases in Chemical EngineeringMajor Databases in Chemical EngineeringCOMPENDEX (OVID) SciFinder Scholar (CAS) Web Of Science (ISI)Major Databases in Chemical EngineeringMajor Databases in Chemical EngineeringCOMPENDEX (OVID)Engineering and technical literature, as well as related fields in science and management. The records in the database are drawn from over 2,600 published journals, conference proceedings and individual conference papers, technical reports, monographs, and other materials. Major Databases in Chemical EngineeringMajor Databases in Chemical EngineeringSciFinder Scholar (CAS)Collection of Chemical Databases: CAPlus, CASREACT, CHEMCATS, CHEMLIST, Registry, Medline Chemistry Plus a Whole Lot More! Agriculture Science / Biology and Life Sciences / Engineering Sciences / Food Sciences / General Chemistry / Geological Sciences / Material Sciences / Medical Sciences / Physics / Polymer Science Major Databases in Chemical EngineeringMajor Databases in Chemical EngineeringWeb Of Science (ISI)Accesses multidisciplinary databases of bibliographic information from thousands of scholarly journals. The databases are indexed so you can search for specific articles by subject, author, journal, and/or author address. You can also search the databases for articles that cite a known author or work.Access to the DatabasesAccess to the Databaseshttp://www.lib.purdue.edu/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 http://www.lib.purdue.edu/wts Java client can not print and save your searches Web Of Science (ISI) IP based Off campus access Libraries Proxy server http://www.lib.purdue.edu/proxy SciFinder ScholarSciFinder ScholarCoverage 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 (including OLDMEDLINE)Web of ScienceWeb of Science8,500 peer-reviewed journals in science, social science, arts and humanities worldwide Science Citation Index (6014 Journal titles) 230 Disciplines 1350 in chemistry, 122 in chemical engineering Update weekly Purdue has access from 1977CompendexCompendexIndex +5000 journals world wide 1987 – Update every week by EI, updated monthly by OVID.Example OneExample OneFind the review articles written in English on gold nanoparticles for catalysts SciFinder Scholar Topic search: gold nanoparticles for catalyst Refine by Document type, and Language Got 13 review articles Check the citing articles for Shipway, Andrew N.; et al. Nanoparticles as structural and functional units in surface-confined architectures. -> 13Example OneExample OneFind the review articles written in English on gold nanoparticles for catalysts Web of Science General search in Topic: (gold and nanoparticl*) and cataly* Limited by Language and Document type Got 13 review articlesExample OneExample OneFind the review articles written in English on gold nanoparticles for catalysts Compendex Search (Gold or Au), nanopartic$, and catalys$ seperately Combine them together Limited to Journal articles/English (40) Limited to Research Review Got 0 review articlesFurther InvestigationFurther InvestigationIf SciFinder Scholar indexes more journals and cover more years than Web of Science, why my search retrieve the same number of articles? Crooks, RM, Zhao MQ, et al. Accounts of Chemical Research 34(3): 181-190. The most cited review in Web of Science, is also in SciFinder Scholar!!nullSciFinder Scholar Record: Dendrimer-Encapsulated Metal Nanoparticles: Synthesis, Characterization, and Applications to Catalysis. Crooks, Richard M.; Zhao, Mingqi; Sun, Li; Chechik, Victor; Yeung, Lee K. Department of Chemistry, Texas AM University, College Station, TX, USA. Accounts of Chemical Research (2001), 34(3), 181-190. CODEN: ACHRE4 ISSN: 0001-4842. Journal; General Review written in English. CAN 134:168789 AN 2000:887031 CAPLUS Abstract A review with 55 refs. that reports the synthesis and characterization of dendrimer-encapsulated metal nanoparticles and their applications to catalysis. These materials are prepd. by sequestering metal ions within dendrimers followed by chem. redn. to yield the corresponding zerovalent metal nanoparticle. The size of such particles depends on the no. of metal ions initially loaded into the dendrimer. Intradendrimer hydrogenation and carbon-carbon coupling reactions in water, org. solvents, biphasic fluorous/org. solvents, and supercrit. CO2 are also described. Web of Science Record: Dendrimer-encapsulated metal nanoparticles: Synthesis, characterization, and applications to catalysis Crooks RM, Zhao MQ, Sun L, Chechik V, Yeung LK ACCOUNTS OF CHEMICAL RESEARCH 34 (3): 181-190 MAR 2001 Document type: Review    Language: English    Cited References: 53    Times Cited: 61    Abstract: This Account reports the synthesis and characterization of dendrimer-encapsulated metal nanoparticles and their applications to catalysis. These materials are prepared by sequestering metal ions within dendrimers followed by chemical reduction to yield the corresponding zerovalent metal nanoparticle. The size of such particles depends on the number of metal ions initially loaded into the dendrimer. Intradendrimer hydrogenation and carbon-carbon coupling reactions in water, organic solvents, biphasic fluorous/organic solvents, and supercritical CO2 are also described. KeyWords Plus: SUPERCRITICAL CARBON-DIOXIDE, SURFACE-CONFINED MONOLAYERS, PHASE PROBE MOLECULES, POLY(AMIDOAMINE) DENDRIMERS, STARBURST DENDRIMERS, GOLD, WATER, NANOCLUSTERS, TEMPLATE, ELECTROCHEMISTRY Addresses: Crooks RM, Texas A&M Univ, Dept Chem, POB 30012, College Stn, TX 77842 USA Texas A&M Univ, Dept Chem, College Stn, TX 77842 USA Save Search/ResultsSave Search/ResultsCOMPENDEX (OVID) Run Saved Search/Save Search History/Delete Search SciFinder Scholar (CAS) Save only to computer drives with a “$” sign!! Web Of Science (ISI) Mark and Submit Marks Marked List Save Search/Run saved searchFull Text?Full Text?COMPENDEX (OVID) No full text available from the database Link to Purdue catalog, can link to full text then SciFinder Scholar (CAS) Click the computer icon Choose the purple colored options Web Of Science (ISI) Selected full text available Double check in Purdue Catalog!!Full Text?Full Text?Comparing Results of Example OneComparing Results of Example OneTotal review articles found 25. 13 (52%)in SciFinder Scholar 13 (52%) in Web of Science 1 (4%) overlap in both 0 in Compendex Citing papers for Crooks, RM, Zhao MQ, et al. Accounts of Chemical Research 34(3): 181-190 Total found 68 63 (93%) in Web of Science 57 (84%) in SciFinder Scholar 52 (83%) overlap in bothMore on Cited Reference SearchMore on Cited Reference SearchWeb of Science also has a separate Cited Reference Search screen. Sometimes you will pick up more cited references for an article. C.D. Nobes and A. Hall, published in Cell, Volume 81 (1) 53-62, 7 April 1995 Example TwoExample TwoFind Prof. Lee’s publication in recent years SciFinder Scholar Author search: Lee Gil, choose all possible entries Refine by Databases (CAplus only) Analyze by Company/Organization Found 5 publications from PurdueExample TwoExample TwoFind Prof. Lee’s publication in recent years Web of Science Search Author: Lee GU and Address: Purdue Got 8 resultsExample TwoExample TwoFind Prof. Lee’s publication in recent years Compendex Author search of Lee G or Lee G U or Lee Gil or Lee Gil U Combine with Institution search: purdue -> 0 (!!)ConclusionConclusionFor a same search … The search strategies are different among three databases The retrieved results are quite dissimilar Even when searching in one database, various approaches will retrieve diverse resultsConclusionConclusionThat means to do a comprehensive literature search … Consult as many resources as possible (including “the Web”, your advisor, librarians) Search critically. Use various combinations of search terms and search strategies as necessary Learn while you are searching. Adjust your searches accordingly Search independently and consistently Manage your search results by using the tool from the databasesA Few More WordsA Few More WordsYou can not find everything on the web Always think what you might miss by consulting to one source E-journals are NOT free, so are the databases you use in the library Science and technology didn’t start from 1907, or 1977, or 1986.Question TimeQuestion Time