[强烈推荐国外大学教授教你怎么查资料!!!.ppt

1、Chemical Engineering Resources at Purdue University Libraries,Literature Searching,What to do when a “Google” search is not enough?,Spring 2003,Song Yu Phone: 496-7279 Chemical Information Specialist Assist. Prof. of Library Sciences Purdue University,Spring 2003,To Warm Up ,Ideas, com

2、mon terms that we use when doing literature searches,Spring 2003,TERTIARYLITERATUREInformation Retrieval,Structure of the literature and Channels of Communication,Spring 2003,Search Operators, Wildcards, and Parentheses,What are search operators? AND, OR, NOT, SAME, NEAR What are wildcards? ? = one

3、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,A,B,C,Note: differe

4、nt databases have different wildcards. Check their Help file to find out what to use.,Spring 2003,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 na

5、nowire building blocks. Science 291:5505 (2001): 851-3.,Bibliographic Information,Spring 2003,Cited/Citing Reference ?# et al. Nanoparticles as structural and functional units in surface-confined architectures. - 13,Spring 2003,Example One,Find the review articles written in English on gold nanopart

6、icles for catalysts Web of Science General search in Topic: (gold and nanoparticl*) and cataly* Limited by Language and Document type Got 13 review articles,Spring 2003,Example One,Find the review articles written in English on gold nanoparticles for catalysts Compendex Search (Gold or Au), nanopart

7、ic$, and catalys$ seperately Combine them together Limited to Journal articles/English (40) Limited to Research Review Got 0 review articles,Spring 2003,Further Investigation,If SciFinder Scholar indexes more journals and cover more years than Web of Science, why my search retrieve the same number o

8、f 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!,Spring 2003,SciFinder Scholar Record: Dendrimer-Encapsulated Metal Nanoparticles: Synthesis, Characterization, and Applications to Catalysis. C

9、rooks, 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 2000:887

10、031 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 zer

11、ovalent 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 Scien

12、ce Record: Dendrimer-encapsulated metal nanoparticles: Synthesis, characterization, and applications to catalysisCrooks RM, Zhao MQ, Sun L, Chechik V, Yeung LKACCOUNTS OF CHEMICAL RESEARCH 34 (3): 181-190 MAR 2001 Document type:Review Language:English Cited References:53 Times Cited:61 Abstract:This

13、 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. Th

14、e 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 CA

15、RBON-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 USATexas A&M Univ, Dept Chem, College Stn, TX 77

16、842 USA,Spring 2003,Save Search/Results,COMPENDEX (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 search,Spring 2003,Full Text?,COMPENDEX (OVID

17、) 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!,Spring 2003,Full Text?,Spring 2003,Compari

18、ng Results of Example One,Total 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 Sci

19、Finder Scholar 52 (83%) overlap in both,Spring 2003,More on Cited Reference Search,Web 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,Spring 20

20、03,Example Two,Find Prof. Lees 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 Purdue,Spring 2003,Example Two,Find Prof. Lees publication in recent years Web

21、of Science Search Author: Lee GU and Address: Purdue Got 8 results,Spring 2003,Example Two,Find Prof. Lees 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 (!),Spring 2003,Conclusion,For 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