The comparative importance of books: clinical psychology in the health sciences library     

Wehmeyer JM  Wehmeyer S 《Bulletin of the Medical Library Association》1999,87(2):187-191

Clinical psychology has received little attention as a subject in health sciences library collections. This study seeks to demonstrate the relative importance of the monographic literature to clinical psychology through the examination of citations in graduate student theses and dissertations at the Fordham Health Sciences Library, Wright State University. Dissertations and theses were sampled randomly; citations were classified by format, counted, and subjected to statistical analysis. Books and book chapters together account for 35% of the citations in clinical psychology dissertations, 25% in nursing theses, and 8% in biomedical sciences theses and dissertations. Analysis of variance indicates that the citations in dissertations and theses in the three areas differ significantly (F = 162.2 with 2 and 253 degrees of freedom, P = 0.0001). Dissertations and theses in biomedical sciences and nursing theses both cite significantly more journals per book than the dissertations in clinical psychology. These results support the hypothesis that users of clinical psychology literature rely more heavily on books than many other users of a health sciences library. Problems with using citation analyses in a single subject to determine a serials to monographs ratio for a health sciences library are pointed out.  相似文献   

Tracing the evolution of critical evaluation skills in students' use of the Internet     

Blumberg P  Sparks J 《Bulletin of the Medical Library Association》1999,87(2):200-205

This paper documents the evolving uses of the Internet made by public health graduate students and traces the development of their search methods and critical evaluative criteria. Early in the first semester and again six months later, twenty-four graduate students in a problem-based learning curriculum, which emphasizes evidence-based critical thinking skills, were required to describe their most helpful resources and to evaluate these resources critically. The answers were coded for the types of resources the students used, how frequently they were used, and why they were used. Student perception of the usefulness of resources, especially the Internet, and ability to evaluate these resources critically changed greatly. Initially, 96% of the students stated that the Internet was their most helpful resource. Six months later, these students continued to use the Internet; however, it was not their most useful source. At the later point, students had very specific uses for the Internet. Their most frequently used evaluation criterion was the reliability and objectivity of the source of the information. By the end of the first year of study, the majority of the students demonstrated an understanding of the principles of evidence-based practice and applied them to their research and analysis of information resources.  相似文献   

Characteristics of peer reviewed clinical medicine journals     

Eldredge J 《Medical reference services quarterly》1999,18(2):13-26

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Efficient reverse k-nearest neighbor estimation     

Elke Achtert  Christian B?hm  Peer Kr?ger  Peter Kunath  Alexey Pryakhin  Matthias Renz 《Informatik - Forschung und Entwicklung》2007,15(3):179-195

The reverse k-nearest neighbor (RkNN) problem, i.e. finding all objects in a data set the k-nearest neighbors of which include a specified query object, has received increasing attention recently. Many industrial and scientific applications call for solutions of the RkNN problem in arbitrary metric spaces where the data objects are not Euclidean and only a metric distance function is given for specifying object similarity. Usually, these applications need a solution for the generalized problem where the value of k is not known in advance and may change from query to query. In addition, many applications require a fast approximate answer of RkNN-queries. For these scenarios, it is important to generate a fast answer with high recall. In this paper, we propose the first approach for efficient approximative RkNN search in arbitrary metric spaces where the value of k is specified at query time. Our approach uses the advantages of existing metric index structures but proposes to use an approximation of the nearest-neighbor-distances in order to prune the search space. We show that our method scales significantly better than existing non-approximative approaches while producing an approximation of the true query result with a high recall.  相似文献   

Optimale Dimensionswahl bei der Bearbeitung des Similarity Join     

Christian B?hm  Hans-Peter Kriegel 《Informatik - Forschung und Entwicklung》2002,6(6):68-76

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Evaluation of online catalog systems for the hospital library     

M J Jarvis 《Bulletin of the Medical Library Association》1991,79(4):402-404

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The structural and functional implications of a school district's creation of subject-area supervisor positions     

Saundra J. Tracy 《Journal of Personnel Evaluation in Education》1996,10(4):297-312

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Teacher competency exams.     

J Andrews 《American annals of the deaf》1991,136(4):309-310

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Causation and Universals     

J. E. TILES 《Philosophical Books》1991,32(3):167-169

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Problems encountered by clinical end users of MEDLINE and GRATEFUL MED     

C J Walker  K A McKibbon  R B Haynes  M F Ramsden 《Bulletin of the Medical Library Association》1991,79(1):67-69

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