Module 8—Deconstructed Headings vs. Subject Strings

Introduction

Module 1
Subject Analysis Principles

• Review Questions

Module 2
Introduction to MeSH Headings (MeSH) and the MeSH Browser

• Review Questions

Module 3
Selecting the Main Concept

• Review Questions

Module 4
Use of Topical Subheadings in MeSH

• Review Questions

Module 5
Geographic Headings

• Review Questions

Module 6
Publication Types

• Review Questions

Module 7
Names as Subjects

• Review Questions

Module 8
Deconstructed Headings vs. Subject Strings

• Review Questions

Special Cases

• If the NLM record does not contain any 650 terms, but does contain a 651, then the term is distributed as a 651 in the MARC 21 output

• Example:
  • NLM files
    • 651 _2 $a Sierra Leone
  • MARC 21 distribution
    • 651 _2 $a Sierra Leone.

• If the NLM record does not contain any 650 or 651 terms, but does contain a 655, then the term is distributed as a 655 in the MARC 21 output

• Example:
  • NLM files
    • 655 _2 $a Periodicals
  • MARC 21
    • 655 _2 $a Periodicals.

• If the NLM record does not contain any 650 terms, but does contain a 651 and 655, then the 655 is appended as $v to the 651

• Example:
  • NLM files
    • 651 _2 $a China
    • 655 _2 $a Handbooks
  • MARC 21
    • 651 _2 $a China $v Handbooks.

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