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PubMed1984

Evaluation of the TALON Cooperative Acquisitions Program for monographs.

The TALON Cooperative Acquisitions Program for monographs (TALON/CAP) was implemented in 1979 by eleven resource libraries in the South Central Regional Medical Library Program. Each participating library acquired books from selected publishers within a profile covering subject and format. The program was evaluated by comparing interlibrary loan requests, surveying participants, and analyzing cataloging records. The results were that ten of the eleven libraries significantly increased their coverage of assigned publishers, and that academic medical libraries are not all buying the same books, even from major medical publishers. The fifty-six publishers in the program accounted for 60% to 83% of the titles with 1977-80 imprints held by participating libraries. The computer-generated collection analysis reports provide a baseline for future collection management studies.

Books↗
PubMed1974

Medical library development at the University of Ibadan, Nigeria.

While libraries of all kinds in Nigeria have many problems, some medical libraries are well established and are giving the services expected of such libraries anywhere. In current conditions of restricted finance and distance from metropolitan countries, consultation and cooperation in serials acquisitions together with union catalogs of serials would be of great value. Modern copying methods make this practical. Union catalogs of monographs would also be valuable. Two new major medical libraries are projected-one half-built, the other still at the planning stage. Each must be planned to give area services rather than purely local and internal services.

Libraries, Medical↗
PubMed1994

Recursive deconvolution of combinatorial chemical libraries.

A recursive strategy that solves for the active members of a chemical library is presented. A pentapeptide library with an alphabet of Gly, Leu, Phe, and Tyr (1024 members) was constructed on a solid support by the method of split synthesis. One member of this library (NH2-Tyr-Gly-Gly-Phe-Leu) is a native binder to a beta-endorphin antibody. A variation of the split synthesis approach is used to build the combinatorial library. In four vials, a member of the library's alphabet is coupled to a solid support. After each coupling, a portion of the resin from each of the four reaction vials was set aside and catalogued. The solid support from each vial is then combined, mixed, and redivided. The steps of (i) coupling, (ii) saving and cataloging, and (iii) randomizing were repeated until a pentapeptide library was obtained. The four pentapeptide libraries where the N-terminal amino acid is defined were screened against the beta-endorphin antibody and quantitated via an ELISA. The amino acid of the four pools that demonstrated the most binding was then coupled to the four tetrapeptide partial libraries that had been set aside and catalogued during the split synthesis. This recursive deconvolution was repeated until the best binders were deduced. Besides the anticipated native binder, two other members of the library displayed significant binding. This recursive method of deconvolution does not use a molecular tag, requires only one split synthesis, and can be applied to the deconvolution of nonlinear small-molecule combinatorial libraries and linear oligomeric combinatorial libraries, since it is based only on the procedure of the synthesis.

Amino Acid Sequence↗
PubMed2000

An expressed sequence tag database of T-cell-enriched activated chicken splenocytes: sequence analysis of 5251 clones.

The cDNA and gene sequences of many mammalian cytokines and their receptors are known. However, corresponding information on avian cytokines is limited due to the lack of cross-species activity at the functional level or strong homology at the molecular level. To improve the efficiency of identifying cytokines and novel chicken genes, a directionally cloned cDNA library from T-cell-enriched activated chicken splenocytes was constructed, and the partial sequence of 5251 clones was obtained. Sequence clustering indicates that 2357 (42%) of the clones are present as a single copy, and 2961 are distinct clones, demonstrating the high level of complexity of this library. Comparisons of the sequence data with known DNA sequences in GenBank indicate that approximately 25% of the clones match known chicken genes, 39% have similarity to known genes in other species, and 11% had no match to any sequence in the database. Several previously uncharacterized chicken cytokines and their receptors were present in our library. This collection provides a useful database for cataloging genes expressed in T cells and a valuable resource for future investigations of gene expression in avian immunology. A chicken EST Web site (http://udgenome. ags.udel. edu/chickest/chick.htm) has been created to provide access to the data, and a set of unique sequences has been deposited with GenBank (Accession Nos. AI979741-AI982511). Our new Web site (http://www. chickest.udel.edu) will be active as of March 3, 2000, and will also provide keyword-searching capabilities for BLASTX and BLASTN hits of all our clones.

Animals↗
PubMed1989

A dedicated database program for cataloging recombinant clones and other laboratory products of molecular biology technology.

A novel computer database program dedicated to storing, cataloging, and accessing information about recombinant clones and libraries has been developed for the IBM (or compatible) personal computer. This program, named CLONES, also stores information about bacterial strains and plasmid and bacteriophage vectors used in molecular biology. The advantages of this method are improved organization of data, fast and easy assimilation of new data, automatic association of new data with existing data, and rapid retrieval of desired records using search criteria specified by the user. Individual records are indexed in the database using B-trees, which automatically index new entries and expedite later access. The use of multiple windows, pull-down menus, scrolling pick-lists, and field-input techniques make the program intuitive to understand and easy to use. Daughter databases can be created to include all records of a particular type, or only those records matching user-specified search criteria. Separate databases can also be merged into a larger database. This computer program provides an easy-to-use and accurate means to organize, maintain, access, and share information about recombinant clones and other laboratory products of molecular biology technology.

Database Management Systems↗
PubMed1998

MCM generator: a Java-based tool for generating medical metadata.

In a previous paper we introduced the need to implement a mechanism to facilitate the discovery of relevant Web medical documents. We maintained that the use of META tags, specifically ones that define the medical subject and resource type of a document, help towards this goal. We have now developed a tool to facilitate the generation of these tags for the authors of medical documents. Written entirely in Java, this tool makes use of the SAPHIRE server, and helps the author identify the Medical Subject Heading terms that most appropriately describe the subject of the document. Furthermore, it allows the author to generate metadata tags for the 15 elements that the Dublin Core considers as core elements in the description of a document. This paper describes the use of this tool in the cataloguing of Web and non-Web medical documents, such as images, movie, and sound files.

Cataloging↗
PubMed1966

Centralization vs. decentralization in medical school libraries.

Does the medical school library in the United States operate more commonly under the university library or the medical school administration? University-connected medical school libraries were asked to indicate (a) the source of their budgets, whether from the central library or the medical school, and (b) the responsibility for their acquisitions and cataloging. Returns received from sixtyeight of the seventy eligible institutions showed decentralization to be much the most common: 71 percent of the libraries are funded by their medical schools; 79 percent are responsible for their own acquisitions and processing. The factor most often associated with centralization of both budget and operation is public ownership. Decentralization is associated with service to one or two rather than three or more professional schools. Location of the medical school in a different city from the university is highly favorable to autonomy. Other factors associated with these trends are discussed.

Libraries, Medical↗