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The sword-billed hummingbird ( Ensifera ensifera) is a neotropical species of hummingbird from the Andean regions of South America. Among the largest species of hummingbird, it is characterized by its unusually long beak, being the only bird to have a beak longer than the rest of its body, excluding the tail.
Developer of the Cutter Expansive Classification. Charles Ammi Cutter (March 14, 1837 – September 6, 1903) was an American librarian. In the 1850s and 1860s he assisted with the re-cataloging of the Harvard College library, producing America's first public card catalog. The card system proved more flexible for librarians and far more useful ...
Online public access catalog. The online public access catalog ( OPAC ), now frequently synonymous with library catalog, is an online database of materials held by a library or group of libraries. Online catalogs have largely replaced the analog card catalogs previously used in libraries.
It has also been called the Library of Congress Catalog Card Number, among other names. The Library of Congress prepared cards of bibliographic information for their library catalog and would sell duplicate sets of the cards to other libraries for use in their catalogs. This is known as centralized cataloging.
N. Name and Title Authority File of Catalonia. National Bibliography Number. National Library of Medicine classification. National Union Catalog. National Union Catalog of Manuscript Collections. New Classification Scheme for Chinese Libraries.
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Voyager (library program) Voyager is an integrated library system used by hundreds of libraries, universities and museums around the world. Voyager was developed by Endeavor Information Systems Inc., which was merged into Ex Libris Group in December 2006. [1]
A nuclear magnetic resonance spectra database is an electronic repository of information concerning Nuclear magnetic resonance (NMR) spectra. Such repositories can be downloaded as self-contained data sets or used online. The form in which the data is stored varies, ranging from line lists that can be graphically displayed to raw free induction ...