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Lesson3#Scientific Research Skills
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  • 1. Scientific Research Skills
    Scientific Research Skills - D.ALQahtani
    3
  • 2. Lessons
    Scientific Research Skills - D.ALQahtani
    1- Essentials
    2- Searching
    3- Using MeSH
    4- Working with Results
    5- Referencing
  • 3. Scientific Research Skills - D.ALQahtani
    3- Using MeSH
  • 4. Scientific Research Skills - D.ALQahtani
    3- Using MeSH
    Basically , when we search , we use
    keywords
    MeSH terms
    or /and
  • 5. Scientific Research Skills - D.ALQahtani
    3- Using MeSH
    keywords
    • Is fast and easy - usually finds what you need
    • 6. Often automatically maps your keyword to the appropriate MeSH term, including it in your search
  • Scientific Research Skills - D.ALQahtani
    3- Using MeSH
    MeSH Search
    MeSH Retrieves Subjects – Not Words: When you search with a MeSH term, you are searching for a subject
    (not a keyword) match
  • 7. Scientific Research Skills - D.ALQahtani
    3- Using MeSH
    Example
    Searching for the keyword "aids"retrieves articles on :
    AIDS virus, as well as articles on hearing aids, audiovisual aids, clinical aids, teaching aids etc.
    Using the MeSH term for AIDS:Acquired Immunodeficiency Syndrome [MeSH] will limit your retrieval to the relevant subject
  • 8. Scientific Research Skills - D.ALQahtani
    3- Using MeSH
    When MeSH Helps and When it Doesn't ?
  • 9. Selecting medical subject headings (MeSH)for a search
    Scientific Research Skills - D.ALQahtani
    3- Using MeSH
    can provide much needed focus and precision...
  • 10. Scientific Research Skills - D.ALQahtani
    3- Using MeSH
    Consider doing a MeSH Search
    Your keyword search results in a retrieval that is off-target
    F
  • 11. Scientific Research Skills - D.ALQahtani
    3- Using MeSH
    Use MeSHsubheadingsto quickly focus your search on a specific aspect of a topic. For example: "Etiology of aphthous ulcer ", "Genetics of amelogenesis imperfecta"
    Tip: When your topic contains the word "of" consider selecting MeSH and MeSH subheadings for your search
     
  • 12. Scientific Research Skills - D.ALQahtani
    3- Using MeSH
    Also Consider doing a MeSH Search If:
    Your keyword search results in a retrieval that is Too large
  • 13. Scientific Research Skills - D.ALQahtani
    3- Using MeSH
    In the MeSH database you can also restrict your search tomajor topic headings only. This feature allows you to retrieve articles where your topic is one of themajor points discussed, rather than a secondary focus.
  • 14. Scientific Research Skills - D.ALQahtani
    3- Using MeSH
    MeSH will probably NOT help you if you search
    A new or emerging medical concept
    A recently published articles
  • 15. Scientific Research Skills - D.ALQahtani
    3- Using MeSH
    Scenario
    You need to find articles on drug treatments for aphthous ulcer !
  • 16. Scientific Research Skills - D.ALQahtani
    3- Using MeSH
    To see the difference between searches, start with a keyword search
    • Clear the previous search if it is still active
    • 17. In the query box, type aphthous ulcer AND drug treatment
    • 18. Click GO
  • Scientific Research Skills - D.ALQahtani
    3- Using MeSH
    You should retrieve about 1008 citations. This is more than is optimal. More importantly, inspection would show that drug treatment aphthous ulcer is not the main focus of many of these citations. (Some of the articles are about aphthous ulcer , but mention drug treatment of other conditions
    We need to increase the search precision
  • 19. Scientific Research Skills - D.ALQahtani
    STEPS
  • 20. Scientific Research Skills - D.ALQahtani
    Locate and Select MeSH Terms From the MeSH database
    3
    2
    1
  • 21. Scientific Research Skills - D.ALQahtani
    Locate and Select MeSH Terms From the MeSH database
    6
    4
    5
  • 22. Scientific Research Skills - D.ALQahtani
    Locate and Select MeSH Terms From the MeSH database
    7- click search Pub Med
  • 23. Scientific Research Skills - D.ALQahtani
    3- Using MeSH
    WHY
    Subheading ( STEP 4)
    Attaching subheadings to a MeSH term allows you to focus on a specific aspect of your topic. In this example, we retrieved citations about drug therapy of aphthous ulcer . We did NOT retrieve citations where " aphthous ulcer " and "drug therapy" are both mentioned as separate concepts
  • 24. Scientific Research Skills - D.ALQahtani
    3- Using MeSH
    WHY
    Restrict Search to Major Topic Headings Only( STEP 5)
    So that your articles will have drug therapy of aphthous ulcer as a major focus
  • 25. Scientific Research Skills - D.ALQahtani
    SO, 504 focused citations in your results down from about 1008 retrieved at the beginning of this example
  • 26. Scientific Research Skills - D.ALQahtani
    3- Using MeSH
    Using MeSH terms and subheadings, and restricting your topic to major headings greatly increases your chances of locating relevant results
  • 27. Scientific Research Skills - D.ALQahtani
    3- Using MeSH
    Quick Summery
    • A MeSH search is a subject search
    • 28. Consider selecting MeSH terms if your search results are off topic or too large
    • 29. A MeSH search usually results in a smaller retrieval than a keyword search. Selecting MeSH terms limits your search to the MeSH field
    • 30. MeSH subheadings allow you to quickly focus on one aspect of a topic
  • Scientific Research Skills - D.ALQahtani
    3- Using MeSH
    Quick Summery
    • Consider restricting your MeSH search to Major Topics Only
    • 31. MeSH will not usually help you if you need to research a new or rare topic or the most recent articles on a topic
    • 32. Display search sets in Citationformat to view the MeSH terms for each citation.
  • Scientific Research Skills - D.ALQahtani
    Reference
    1- Gustave L. and Janet W. Levy Library of Mount Sinai School of Medicine
  • 33. Thank you
    End of the lesson
    Scientific Research Skills - D.ALQahtani
    3