PubMed for environmental effects

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PubMed for environmental effects

• 13-15 4 feb 2002
• Teacher lars.iselid_at_ub.umu.se

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PubMed

• Medical database with over 11 millions of
  references
• No fulltext (beside of PubMed Central)
• References from 1966.

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What is a thesaurus?

• A list of controlled keywords within a specific
  subject - Medline thesaurus is called MeSH
• Different databases mostly have different
  thesauri
• Hierarchic structure
• Cross-references
• for example stroke, use Cerebrovascular Accident

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Freetext versus MeSH-terms

• Example Cancer
• Always check Details when doing a freetext search!

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How to refine a search?

• Combination of keywords
• Subheadings
• Limits
• language, publication year, publication type etc.

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Combine MeSH-terms

• Boolean operators AND, OR, NOTaccidents AND
  swedenhygiene OR sanitationaccidents NOT
  drowning

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Combine MeSH-terms

• Connection between neoplasms and herbicides in
  Sweden?

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Subheadings

• Silicosis
• complications
• diagnosis
• mortality
• prevention and control
• rehabilitation
• therapy etc.

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Subheadings

• Adverse effects of arsenic?

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Limits

• Publication year and date
• Language
• Publication type - etc.
• for example Reviews

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Limits

• Review artciles in english about Water pollution?

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Search in Preview/index for authors?

• Dioxins and Rappe?

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How to order an article?

• If we have it electronically, print it out!
• If we have it in print, come and copy it!
• If we dont have it, order it from us!
• Umeå university Library website
• Service tjänster, kopiebeställning, formulär
  med klipp- och klistra-möjlighet.