豆丁推荐国外大学教授教你怎么查资料

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1、Literature SearchingWhat to do when a“Google”search is not enough?Spring 2003Song Yusyupurdue.edu Phone:496-7279Chemical Information SpecialistAssist.Prof.of Library SciencesPurdue UniversitySpring 2003To Warm Up Ideas,common terms that we use when doing literature searchesSpring 2003TERTIARYLITERAT

2、UREInformation RetrievalStructure of the literature and Channels of CommunicationSpring 2003Search Operators,Wildcards,and Parentheses What are search operators?AND,OR,NOT,SAME,NEARABCNote:different databases have different wildcards.Check their Help file to find out what to use.Spring 2003What is i

3、n a citation?AuthorTitleSource/journalEnumeration(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 InformationSpring 2003Cited/Citing Reference?#&!Linki

4、ng to the original cited paperLinking to papers which cite the same paper(Time Cited)Finding related papers19941991199219871988195719841982198819871957Known PaperCited PaperNew paper retrieved via cited reference searchingSpring 2003Major Databases in Chemical EngineeringCOMPENDEX(OVID)SciFinder Sch

5、olar(CAS)Web Of Science(ISI)Spring 2003Major 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 confere

6、nce papers,technical reports,monographs,and other materials.Spring 2003Major 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/Engine

7、ering Sciences/Food Sciences/General Chemistry/Geological Sciences/Material Sciences/Medical Sciences/Physics/Polymer Science Spring 2003Major Databases in Chemical EngineeringWeb Of Science(ISI)Accesses multidisciplinary databases of bibliographic information from thousands of scholarly journals.Th

8、e 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.Spring 2003Access to the Databaseshttp:/www.lib.purdue.edu/eresources/index.html choose“By Title”COMPENDEX(O

9、VID)Web based,need your Purdue IDSpring 2003SciFinder ScholarCoverage back to 1907 by one search!Spring 2003Web of ScienceSpring 2003CompendexIndex+5000 journals world wide1987 Update every week by EI,updated monthly by OVID.Spring 2003Example OneFind the review articles written in English on Nanopa

10、rticles as structural and functional units in surface-confined architectures.-13Spring 2003Example OneFind the review articles written in English on Spring 2003Example OneFind the review articles written in English on Spring 2003Further InvestigationIf SciFinder Scholar indexes more journals and cov

11、er more years than Web of Science,why my search retrieve the same number of articles?The most cited review in Web of Science,is also in SciFinder Scholar!Spring 2003SciFinder Scholar Record:Dendrimer-Encapsulated Metal Nanoparticles:Synthesis,Characterization,and Applications to Catalysis.Crooks,Ric

12、hard 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 AbstractA review with

13、 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

14、 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 nanoparti

15、cles:Synthesis,characterization,and applications to catalysisCrooks RM,Zhao MQ,Sun L,Chechik V,Yeung LKACCOUNTS OF CHEMICAL RESEARCH 34(3):181-190 MAR 2001Document type:Review Language:English Cited References:53 Times Cited:61 Abstract:This Account reports the synthesis and characterization of dend

16、rimer-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

17、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,POL

18、Y(AMIDOAMINE)DENDRIMERS,STARBURST DENDRIMERS,GOLD,WATER,NANOCLUSTERS,TEMPLATE,ELECTROCHEMISTRY Addresses:Crooks RM,Texas A&M Univ,Dept Chem,POB 30012,College Stn,TX 77842 USATexas A&M Univ,Dept Chem,College Stn,TX 77842 USA Spring 2003Save Search/ResultsCOMPENDEX(OVID)Run Saved Search/Save Search Hi

19、story/Delete SearchSpring 2003Full Text?COMPENDEX(OVID)No full text available from the database Link to Purdue catalog,can link to full text thenSpring 2003Full Text?All full text articlesFull text journal articles available through Purdues subscriptionFull text articles that covers in the databaseT

20、he full text articles you can get if you only check the full text links in the databaseSpring 2003Comparing 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 CompendexSpring 2003More on Cited Reference SearchWeb of Sci

21、ence 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 Volume 81(1)53-62,7 April 1995 Spring 2003Example TwoFind Prof.Lees publication in recent yearsSpring 2003Example TwoFind Prof.Lees publication in

22、recent yearsSpring 2003Example TwoFind Prof.Lees publication in recent yearsSpring 2003ConclusionFor a same search The search strategies are different among three databasesThe retrieved results are quite dissimilarEven when searching in one database,various approaches will retrieve diverse resultsSp

23、ring 2003ConclusionThat 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 necessaryLearn while you are searching.Adjust your searches accor

24、dinglySearch independently and consistentlyManage your search results by using the tool from the databasesSpring 2003A Few More WordsYou can not find everything on the webAlways think what you might miss by consulting to one sourceE-journals are NOT free,so are the databases you use in the libraryScience and technology didnt start from 1907,or 1977,or 1986.Spring 2003Question Time