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Searching the Scientific Literature

Searching the Scientific Literature. Douglas A. Loy. Reasons for searching the literature. Find raw data to test dogma for yourself Find procedures for experiments Ensure that your idea or invention is original Give credit to those who did the work first For the joy of doing the research.

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Searching the Scientific Literature

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  1. Searching the Scientific Literature Douglas A. Loy

  2. Reasons for searching the literature • Find raw data to test dogma for yourself • Find procedures for experiments • Ensure that your idea or invention is original • Give credit to those who did the work first • For the joy of doing the research

  3. For patents, proposals and papers, you must determine if your work is original • Multiple, exhaustive searches of literature • Use reviews, dissertations, & encyclopedias • Alternative keywords • Chemical structures • Chemical Abstract System (CAS #) • Search back as far as literature goes

  4. Citing Original work “prior art” • Knowingly ignoring prior art is fraud • Only citing your own work or part of literature is fraud • Even the most careful search of the literature may miss prior art. • Excusable if you have evidence of having made a reasonable effort to find prior art.

  5. Searching the literature before 1990 Hard or bound tomes in libraries Chemical Abstracts Journals Encyclopedias 50% of your time was spent in the library searching through the chemical abstracts and then checking papers

  6. Searching the literature today Best Scifinder, Web of Science, Reayxs Encyclopedias, Dissertations, Reviews Google Scholar, Microsoft Academic Google, Yahoo, Wikipedia Worst

  7. Strategy for complete searches • Structure search (SciFinder or Reaxys) • CAS number(s)- unique numbers for each chemical • Focus in on topic with key words • Identify key papers • See who the author cited in paper • See who is citing the papers • Search authors for additional papers • Obtain dissertations from authors groups to expand citation base

  8. Keywords • Each paper has 4-10 keywords assigned to it by the journal editor to aide searchers • Many are volunteered by the author of the paper • However, unless you already have a paper or experience in an area you may have trouble finding keywords that give you a complete search. • It is possible to miss dozens of papers or patents.

  9. Coming up with key words for searching. • From paper titles • search your keywords on WWW and look for alternatives • Find a review in the general area and scan through it for keywords • Go find your topic or related topic in a technical encyclopedia in the library • Ask an expert for help

  10. Technical Encyclopedias Ullmann's Encyclopedia of Industrial Chemistry 6th ed. Wiley-VCH, 2001 Often have industry based authors Facts unavailable in journals

  11. Beilstein • Beilstein's 'Handbuch der organischen Chemie’ • 3 million organic compounds until 1979 • listing their name, molecular formula, structural formula, all methods of preparation, important physical, chemical and biological properties, occurrence in nature, and information about derivatives. • Online for fee

  12. Free Online Synthesis Databases/search systems Chemogenesis Focus: Chemogenesis is a web book, dealing with chemical reactions and chemical reactivity. Organic Syntheses (ORGSYN) Focus: high-yield synthetic methods and preparations of specific compounds Coverage: 2400 articles and over 6000 reactions SyntheticPages Focus: SyntheticPages is a freely available interactive database of synthetic chemistry. Coverage: 292 reactions Webreactions Focus: Reaction search system Coverage: about 400,000 individual reactions Access: Online

  13. Journals with review articles only Annual Reports on the Progress of Chemistry, section Chemical Reviews Chemical Society reviews Specialist Periodical Reports Uspekhi Khimii (Russian Chemical Reviews) Progress in Polymer Science

  14. CAS Registry -Set up & maintained by American Chemical Society -Subject: identification data of all types of chemical substances - Sources: > 9,000 journals, patents, conference proceedings, technical reports, books, dissertations, reviews, web preprints (1957- ) -Records: > 50 million substances -Searchable by Scifinder Has, for all practical purposes, replaced Beilstein

  15. Chemical Abstracts (ACS) -Subject: bibliographic data of all areas of chemistry and chemical engineering -Sources: > 9,000 journals, 50 active patent-issuing authorities, conference proceedings, technical reports, books, dissertations, reviews, web preprints (1907- ) - Records: > 24 million Search: Bibliographic terms, indexing terms, CAS Registry Numbers and CA abstractsGuides: STN database summary sheet, STN -Access: Scifinder/Scifinder Scholar , STN, STN Easy

  16. Analyze by author, institution, document type, journal name, year

  17. Subsearch by author

  18. Full Text can be obtained through link

  19. By Number of Citations

  20. How do you know which one is the right one?? Find a resume or curriculum vita online to identify where your author worked.

  21. Another search engine is Web of Science or ISI.

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