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eSH® 2005 -- Implications for LocatorPlus and the NLM Catalog
The National Library of Medicine (NLM) adopted the 2005 MeSH vocabulary for cataloging and for records being created by collaborating data producers beginning on November 22, 2004.
MeSH subject headings in LocatorPlus were changed to reflect the 2005 MeSH vocabulary and appear in that form as of November 22, 2004.
It is expected that the NLM Catalog's MeSH database and translation tables will be updated to reflect 2005 MeSH in mid-December when end-of-year activities are complete. Bibliographic records with updated MeSH should appear in the NLM Catalog in mid-December 2004. Note that, until then, there will be a hiatus in the addition of new and edited bibliographic records to the NLM Catalog.
MeSH Changes in NLM Bibliographic Records 1
In general, the Cataloging Section implemented the changes in NLM bibliographic records for books, serials, and other materials, as they were applied for citations in MEDLINEŽ (see MEDLINE Data Changes - 2005. NLM Tech Bull. 2004 Nov-Dec;(341):e9.). In two cases, different approaches were taken due to the character of the literature and number of records requiring maintenance in LocatorPlus. Cataloging applied the following changes noted below.
- Terms for historical eras, e.g., History of Medicine, 15th Cent., were replaced by the MeSH 2005 terms, e.g., History, 15th Century. Additionally, if the bibliographic record with a century tag lacked both a heading with the subheading "history" and a pre-coordinated history term (e.g., History of Dentistry, etc.), then the MeSH term "History of Medicine" was added retrospectively.
Example 1
Subjects prior to Adoption of MeSH 2005
650 12 $a Alchemy
650 12 $a Occultism $x history
650 22 $a History of Medicine, 16th Cent.
650 22 $a History of Medicine, 17th Cent.
Subjects after Adoption of MeSH 2005
650 12 $a Alchemy
650 12 $a Occultism $x history
650 22 $a History, 16th Century
650 22 $a History, 17th Century
Example 2
Subjects prior to Adoption of MeSH 2005
650 12 $a Mental Competency $x legislation and jurisprudence
650 22 $a Social Environment
650 22 $a History of Medicine, 18th Cent.
Subjects after Adoption of MeSH 2005
650 12 $a Mental Competency $x legislation and jurisprudence
650 22 $a Social Environment
650 22 $a History, 18th Century
650 22 $a History of Medicine
Example 3
Subjects prior to Adoption of MeSH 2005
650 12 $a History of Nursing
650 22 $a History of Medicine, 20th Cent.
Subjects after Adoption of MeSH 2005
650 12 $a History of Nursing
650 22 $a History, 20th Century
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| Figure 1-LocatorPlus MARC View Display |
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Tumor Necrosis Factor was replaced in all instances by the broader new subject, Tumor Necrosis Factors. [For MEDLINE, that heading was replaced by Tumor Necrosis Factor-alpha].
Additional Database Changes in LocatorPlus 2
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Modifications to Reflect the Cessation of print Index Medicus (IM) or the Cessation of print Abridged Index Medicus (AIM)
The note "Index medicus ceased as a print publication December 2004." was added to the bibliographic records for titles included in Index Medicus. Similarly, the note "Abridged index medicus ceased as a print publication December 1997" was added to the bibliographic records for titles included in Abridged Index Medicus.
When present, this note appears in the "Details" display of LocatorPlus, labeled "NLM Index Note", as well as the MARC View display in the locally-defined MARC field 596.
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Standardization or Deletion of LJISH (List of Journals Indexed-Subject Headings)
The locally defined MARC 21 698 field in LocatorPlus contains the LJISH (List of Journals Indexed-Subject Headings) assigned by the Index Section of the National Library of Medicine to serial titles that are or were indexed in MEDLINE or OLDMEDLINE or that were previously indexed in the Index to Audiovisual Serials in the Health Sciences.
LJISH headings were removed from the MARC 21 698 field when the serial title was not indexed in one of these three sources (as indicated in the MARC 21 510 field), as well as when the MARC 510 field for indexing history contained the phrase "Date range of indexed citations unspecified".
Additionally, all LJISH headings in the MARC 21 698 field were updated to reflect 2005 MeSH.
- Addition of Fixed Field Coding for Electronic Resources
A MARC 21 field 007, coded "c" for electronic resource, was added, when not already present, to all records containing a URL link. Coding in this MARC 21 fixed field supports limiting searches by medium in LocatorPlus and by item type in the NLM Catalog.
1
These data changes will be reflected in the NLM Catalog in mid-December 2004.
2
These data changes will be reflected in the NLM Catalog in mid-December 2004.
By Alice E. Jacobs
Cataloging Section
Jacobs AE. Cataloging News - 2005. NLM Tech Bull. 2004 Nov-Dec;(341):e11.
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