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<!--***********************change issue date and title below**********************-->
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<title>Request for Comments on Discontinuing Distribution of Cataloging Bibliographic Records with Artificially Reconstructed Subject Strings. NLM Technical Bulletin. 2005 May-Jun</title>
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<meta name="DC.Subject.Keyword" content="Age Groups" />
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<tr><td width="30"> </td><td width="470"><font size="2"><strong>June 2, 2005</strong> [posted]</font><br />
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<font size="2"><strong>February 27, 2006</strong> [<a href = "#note">note added</a>]</font>
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<!--************************indicate title of article below*********************-->
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<tr><td width="30"> </td><td width="470"><font size="5"><strong>Request for Comments on
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Discontinuing Distribution of Cataloging Bibliographic Records with Artificially Reconstructed Subject Strings</strong></font><br /></td><td width="30"> </td></tr>
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<tr><td width="30"> </td><td width="470">
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<em><a name = "note">[Editor's</a> Note: The Response to NLMs request for comments can be found in <a href="http://www.nlm.nih.gov/pubs/techbull/so05/so05_marc.html">Subject Headings in NLM MARC 21 Products. NLM Tech Bull. 2005 Sep-Oct;(346):e6.</a>]</em>
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<img src="/pubs/techbull/new_tb_graphics/n.gif" border="0" align="left" alt="drop cap letter for n"/>
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LM is proposing to discontinue distributing its cataloging bibliographic records with artificially reconstructed subject strings.
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Records in MARC format would continue to have MeSH headings combined with the appropriate topical subheadings, but age group and
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pregnancy subdivisions, geographic locations, and publication types would be carried in separate fields in the record, rather
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than as subfields of the MeSH heading.
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</p>
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<p>
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This would mean that records distributed to bibliographic utilities and other licensees would be identical to the records in LocatorPlus.
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NLM's understanding is that many medical libraries would prefer to establish their headings in the same manner that NLM does internally.
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Where libraries are still using the complete subject string, they often are still making local adjustments to the current strings to make them
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compatible with the older headings in their databases, so they are not using the strings as found in the utilities.
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</p>
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<p>
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By no longer distributing reconstructed subject strings, NLM will be able to streamline its cataloging process by avoiding the complex
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tagging and coding needed to reconstruct the strings properly on output. This will avoid the creation of sometimes nonsensical subject
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strings that occasionally are automatically generated by the reconstruction program. In the online environment, deconstructed subject
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headings provide more simplicity and semantic interoperability.
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</p>
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<dl>
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<dt>Example:</dt>
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<dt>Currently Catfile licensees receive MARC formatted records with the following data:</dt>
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<dd>650 _2 $a Main heading $x topical subheading $x age group $z geographic location $v Publication
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Type/Genre $x language </dd>
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</dl>
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<dl>
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<dt>In the future, distributed records would contain the following data:</dt>
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<dd>650 _2 $a Main heading $x topical subheading </dd>
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<dd>650 _ 2 $a Age group</dd>
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<dd>
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651 _2 $a Geographic location $x topical subheading </dd>
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<dd>
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655 _7 $a Publication Type/Genre $2 mesh </dd>
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</dl>
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<p>
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$x language would not appear in the 650 (subject) field. Language information would still be found in the 008 (fixed field) and the 041 field.
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<p>
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NLM is interested in hearing if libraries would like to continue to have $x language appended to the subject string on distributed records
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when one of the following publication types is used: Dictionary, Encyclopedias, Phrases or Terminology.
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</p>
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<p>
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The proposed change would be reflected in NLM's cataloging bibliographic records distributed to licensees and would begin to appear in bibliographic
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utilities (e.g., OCLC, RLIN) in December 2005, when NLM resumes MARC record distribution after internal year-end processing to implement MeSH 2006.
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</p>
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<p>
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Please send comments on this proposal by August 15, 2005 to:
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</p>
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<dl>
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<dd>Diane Boehr</dd>
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<dd>Head, Cataloging</dd>
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<dd>National Library of Medicine</dd>
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<dd>8600 Rockville Pike, Room 1N11</dd>
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<dd>Bethesda, MD 20894</dd>
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<dd><a href="mailto:boehrd@mail.nlm.nih.gov">boehrd@mail.nlm.nih.gov</a></dd>
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</dl>
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<p>
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NLM will make the final decision on whether or not to implement this change by September 30, 2005.
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<br /><br />
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<!--************************indicate article author and section below*******************************-->
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<p>
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<strong>By Diane Boehr</strong><br />
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<strong>Cataloging Section</strong><br />
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</p>
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<!--************************indicate indexing terms below**********************-->
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<!--
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<p><STRONG>Indexing Terms</STRONG></p>
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<p>Artificially Reconstructed Subject Strings. Request for Comments on Discontinuing</p>
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<p>MeSH. Artificially Reconstructed Subject Strings. Request for Comments on Discontinuing</p>
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<p>MARC. Artificially Reconstructed Subject Strings. Request for Comments on Discontinuing</p><br />
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<p>LoctorPlus. Artificially Reconstructed Subject Strings. Request for Comments on Discontinuing</p><br />
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<p>Cataloging. Artificially Reconstructed Subject Strings. Request for Comments on Discontinuing</p><br />
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<p>Publication Types. Artificially Reconstructed Subject Strings. Request for Comments on Discontinuing</p><br />
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-->
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<p>
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<!--************************change citation information below*****************************-->
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<em>Boehr D. Request for Comments on
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Discontinuing Distribution of Cataloging Bibliographic Records with Artificially Reconstructed Subject Strings. NLM Tech Bull. 2005 May-Jun;(344):e8.</em>
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<!--************************end citation information********************************-->
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