Docstoc

Medical Subject Headings _MeSH_

Document Sample
Medical Subject Headings _MeSH_ Powered By Docstoc
					Medical Subject Headings
         (MeSH)
  Changes after 1999

       Dr. Yan Ma
       Topical Subheadings

They are same as we discussed in earlier
slide presentation.
  Pre-1999 Subheading String
       and New Practice
Pre-1999
650_ 2 Main heading |x topical subheading
   |z geographic |v form |x language

New Practice:
650_ 2 Main heading |x topical subheading
651_ 2 Geographic |x topical subheading
655_ 7 Genre or publication type |2 mesh
           Publication Type

Publication type:
These descriptors characterize what a
publication is rather than what it is about.

See the list of publication types.
          Publication Type
How do we use it in cataloging?

NLM’s new practice:
  655_ 7 Congresses |2 mesh
  655_7 Atlases |2 mesh
  655_7 Bibliography |2 mesh
          Publication Type
How do we use it in cataloging?

In OCLC: The publication type is in the |v
subfield code.
For example:
650_2 Neoplasms |v Congresses.
650_2 Neoplasms |v Bibliography.
Form Subheading or Physical Carrier


The physical carrier such as CD-ROM,
videocassettes,etc. is not considered to be
a genre or publication type. The physical
carrier is identified in the bibliographic
description, notes and the fixed field.
Form Subheading or Physical Carrier

They are coded in 300, 500, fixed field.
There is no rule on how to put a note for
the physical carrier.

In Practice: Many libraries decided to
continue their conventional practice.
Form Subheading or Physical Carrier

Video Recording in MeSH is a main
heading. It is used to describe the main
topic of the item. It is not used for
subheadings.
 /videocassettes is a subheading in MeSH.
Can we still use it? Yes. But, it is not listed
in a single form subheading list in the
beginning of the MeSH list.
     Language Subheading

Language is coded in 008/35-37. It is
MARC21)

In OCLC, we use 041 for language and
fixed field.
    Geographic Subheading
Geographic subheading is stored in 651.
The two topical subheadings ethnology
and epidemiology are retained for use with
geographic names and stored in the |x
subfield of the 651.

651_2 Texas |x epidemiology.
            Age Groups

When a record contains age group terms
and the subject terms are to be qualified
by an age group, a |9 a subfield is added.
            Age Groups
Old Practice:

650 12 Child Development
650 22 Communication |x in infancy &
childhood
650 22 Learning |x in infancy & childhood
650 22 Thinking |x in infancy & childhood
           Age Groups
New Practice:
650 12 Child Development
650 22 Communication |9 a
650 22 Learning |9 a
650 22 Thinking |9 a
650 22 Infant
650 22 Child
             Age Groups
In COLC, it is translated into this:
650 12 Child Development
650 22 Communication |x Infant
650 22 Communication |x Child
650 22 Learning |x Infant
650 22 Learning |x Child
650 22 Thinking |x Infant
650 22 Thinking |x Child
          MeSH Application
Application of MeSH for Medical Catalogers:

http://www.nlm.nih.gov/tsd/cataloging/catmesh.html

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:3
posted:9/1/2012
language:English
pages:16