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1.
Jessica Bates Paul Best Janice McQuilkin Brian Taylor 《The Journal of Academic Librarianship》2017,43(1):8-17
The availability of web search engines offers opportunities in addition to those provided by bibliographic databases for identifying academic literature, but their usefulness for retrieving research is uncertain. A rigorous literature search was undertaken to investigate whether web search engines might replace bibliographic databases, using empirical research in health and social care as a case study. Eight databases and five web search engines were searched between 20 July and 6 August 2015. Sixteen unique studies which compared at least one database with at least one web search engine were examined, as well as drawing lessons from the authors’ own search process. Web search engines were limited in that the searcher cannot be certain that the principles of Boolean logic apply and they were more limited than bibliographic databases in their functions, such as exporting abstracts. Recommendations are made for improving the rigour and quality of reporting studies of academic literature searching. 相似文献
2.
N C Broering 《Bulletin of the Medical Library Association》1985,73(2):138-145
The mini MEDLINE SYSTEM, a user-friendly search system developed in 1981 at the Georgetown University Medical Center, has been operational since 1982. The system is designed to meet the immediate educational and clinical information needs of students, residents, and faculty. This article focuses on system planning and design, database creation through "downloading," hardware adaptation, and system use. The database is a subset of the NLM's MEDLINE file; it includes over 180,000 citations to articles indexed in over 160 journals from 1982 to the present. With only a few keystrokes in a two-step process it allows users to conduct bibliographic searches. The system is being replicated at eight other medical libraries. 相似文献
3.
The MELVYL MEDLINE project resulted in the addition of a full five-year subset of MEDLINE to the University of California's (UC) MELVYL online union catalog. As one of the nation's largest MEDLINE end-user searching systems, MELVYL MEDLINE provides online bibliographic access to the biomedical journal literature for all UC personnel at over seventy library sites or by remote access. This paper summarizes the project's accomplishments, reports MELVYL MEDLINE use and its impact on library services, and provides insights for other end-user search systems. The project serves as a model for adding databases to the MELVYL catalog and demonstrates the potential for use by other disciplines of a specialized database when readily accessible. Evaluation results report high user satisfaction and high usage. However, many advanced searching features of the interface are little used by searchers. Effects on library services include marked increases in reference transactions and interlibrary loans, with significant declines in mediated search services. Future MELVYL MEDLINE enhancements include matching search retrievals to journal locations, linkage to an online document delivery system, and consideration of building a superset of databases by combining MELVYL MEDLINE with citations from another database in the MELVYL catalog. 相似文献
4.
Julian Hirt Johannes Bergmann Melanie Karrer 《Journal of the Medical Library Association》2021,109(2):275
Objective:We aimed to determine overlaps and optimal combination of multiple database retrieval and citation tracking for evidence synthesis, based on a previously conducted scoping review on facilitators and barriers to implementing nurse-led interventions in dementia care.Methods:In our 2019 scoping review, we performed a comprehensive literature search in eight databases (CENTRAL, CINAHL, Embase, Emcare, MEDLINE, Ovid Nursing Database, PsycINFO, and Web of Science Core Collection) and used citation tracking. We retrospectively analyzed the coverage and overlap of 10,527 retrieved studies published between 2015 and 2019. To analyze database overlap, we used cross tables and multiple correspondence analysis (MCA).Results:Of the retrieved studies, 6,944 were duplicates and 3,583 were unique references. Using our search strategies, considerable overlaps can be found in some databases, such as between MEDLINE and Web of Science Core Collection or between CINAHL, Emcare, and PsycINFO. Searching MEDLINE, CINAHL, and Web of Science Core Collection and using citation tracking were necessary to retrieve all included studies of our scoping review.Conclusions:Our results can contribute to enhancing future search practice related to database selection in dementia care research. However, due to limited generalizability, researchers and librarians should carefully choose databases based on the research question. More research on optimal database retrieval in dementia care research is required for the development of methodological standards. 相似文献
5.
An exploratory study to investigate perceived differences between searching full-text databases and bibliographic databases was undertaken. BRS's full-text database, Comprehensive Core Medical Library (CCML), and BRS's current MEDLINE file (MESH) were compared. Identical literature search topics were run in the two databases and the results evaluated regarding currency of search results, success in answering specific questions, uniqueness of information retrieved, and relevancy of retrieval. Additionally, connect time and costs were noted to aid in determining the feasibility of offering full-text database searching as a service for which the authors' institution would charge. 相似文献
6.
Language barriers and bibliographic retrieval effectiveness: use of MEDLINE by French-speaking end users. 总被引：1，自引：0，他引：1
E Mouillet 《Bulletin of the Medical Library Association》1999,87(4):451-455
OBJECTIVE: A study was conducted to determine if bibliographic retrieval performed by French-speaking end users is impaired by English language interfaces. The American database MEDLINE on CD-ROM was used as a model. METHODS: A survey of self-administered questionnaires was performed at two libraries of Victor Segalen Bordeaux 2 University, during a two-month period in 1997. Three study groups were constituted: MEDLINE / Ovid end users, MEDLINE / Ovid librarian-mediated users, and Pascal, a French bibliographic database, end users. RESULTS: Among 191 respondents, only 22% thought English was an obstacle to their bibliographic retrieval. However, the research software was generally underused and the quality of the retrieval weak. The differences were statistically significant between users trained by librarians and the self-trained group, the former performing better. CONCLUSION: Special efforts need to be made to develop curriculum training programs for computerized bibliographic retrieval in medical schools, regardless of the native language of the student. 相似文献
7.
关于从MEDLINE数据库中进行知识抽取和挖掘的研究进展 总被引：28，自引：4，他引：24
本文对近年来国内外利用医学文献检索系统MEDLINE进行知识抽取和文本数据挖掘的研究进行了回顾和综述,包括Swanson等开展的从文献中发现隐藏的联系的研究,Cimino等人开展的从文献中抽取规则的研究,国外的共词及国内的共篇分析研究.并据此提出,在当前信息技术高速发展的条件下,应当充分开展知识抽取和文本挖掘的研究,为图书情报部门的服务功能从文献管理向信息管理和知识管理转化进行理论上的探索. 相似文献
8.
Using EndNote version 7.0, the authors tested the search capabilities of the EndNote search engine for retrieving citations from MEDLINE for importation into EndNote, a citation management software package. Ovid MEDLINE and PubMed were selected for the comparison. Several searches were performed on Ovid MEDLINE and PubMed using EndNote as the search engine, and the same searches were run on both Ovid and PubMed directly. Findings indicate that it is preferable to search MEDLINE directly rather than using EndNote. The publishers of EndNote do warn its users about the limitations of their product as a search engine when searching external databases. In this article, the limitations of EndNote as a search engine for searching MEDLINE were explored as related to MeSH, non-MeSH, citation verification, and author searching. 相似文献
9.
Melissa Gomis Carole Gall Frances A. Brahmi 《Medical reference services quarterly》2013,32(3):260-271
ABSTRACT The authors of this article analyzed the differences in output when searching MEDLINE direct and MEDLINE via citation management software, EndNote X1®, EndNote Web®, and RefWorks©. Several searches were performed on Ovid MEDLINE and PubMed directly. These searches were compared against the same searches conducted in Ovid MEDLINE and PubMed using the search features in EndNote X1, EndNote Web, and RefWorks. Findings indicated that for in-depth research users, should search the databases directly rather than through the citation management software interface. The search results indicated it would be appropriate to search databases via citation management software for citation verification tasks and for cursory keyword searching. 相似文献
10.
Anita A. H. Verhoeven Peter M. Boendermaker Edzard J. Boerma Betty Meyboom-De Jong 《Health information and libraries journal》1999,16(3):141-150
The aim of this study was to develop a model to evaluate the retrieval quality of search queries performed by Dutch general practitioners using the printed Index Medicus, MEDLINE on CD-ROM, and MEDLINE through GRATEFUL MED. Four search queries related to general practice were formulated for a continuing medical education course in literature searching. The selected potential relevant citations from the course instructor and the 103 course participants together served as the basic set for the three judges to evaluate for (a) relevance and (b) quality, with the latter based on journal ranking, research design and publication type. Relevant individual citations received a citation quality score from 1 (low) to 4 (high). The overall search quality was expressed in a formula, which included the individual citation quality score of the selected and missed relevant citations, and the number of selected non-relevant citations. The outcome measures were the number and quality of relevant citations and agreement between the judges. Out of 864 citations, 139 were assessed as relevant, of which 44 citations received an individual citation quality score of 1, 76 of 2, 19 of 3 and none of 4. The level of agreement between the judges was 68% for the relevant citations, and 88% for the non-relevant citations. We describe a model for the evaluation of search queries based not only on the relevance, but also on the quality of the citations retrieved. With adaptation, this model could be generalized to other professional users, and to other bibliographic sources. 相似文献
11.
S A Kelly 《Medical reference services quarterly》1988,7(4):31-45
A search for literature on the relationship between the autonomic nervous system and speech was performed via the DIALOG Information Service on four databases: BIOSIS Previews, EMBASE, MEDLINE, and PsycINFO. A doctoral candidate in the Department of Audiology and Speech Sciences at Purdue University reviewed the citations retrieved for relevancy. Then, the coverage of the relevant literature by the four databases was analyzed. MEDLINE yielded the greatest number of relevant citations followed by EMBASE, BIOSIS, and PsycINFO. The four databases showed little overlap in coverage of citations or journal titles. This study indicates that it would be advantageous to search all four databases for the speech scientist. 相似文献
12.
MEDLINEplus: building and maintaining the National Library of Medicine's consumer health Web service 总被引：1，自引：0，他引：1
MEDLINEplus is a Web-based consumer health information resource, made available by the National Library of Medicine (NLM). MEDLINEplus has been designed to provide consumers with a well-organized, selective Web site facilitating access to reliable full-text health information. In addition to full-text resources, MEDLINEplus directs consumers to dictionaries, organizations, directories, libraries, and clearinghouses for answers to health questions. For each health topic, MEDLINEplus includes a preformulated MEDLINE search created by librarians. The site has been designed to match consumer language to medical terminology. NLM has used advances in database and Web technologies to build and maintain MEDLINEplus, allowing health sciences librarians to contribute remotely to the resource. This article describes the development and implementation of MEDLINEplus, its supporting technology, and plans for future development. 相似文献
13.
Background
Systematic reviews risk producing biased conclusions if a comprehensive search to identify eligible studies is not undertaken, but little evidence exists to guide prioritisation of databases to search when resources are limited.Objectives
A systematic review examining interventions for managing frozen shoulder (adhesive capsulitis) was used to investigate the performance of bibliographic databases in identifying the included studies, the smallest combination of databases required to retrieve all included studies, and the performance of the searches themselves.Methods
We calculated the yield of included studies from each of 15 databases, and the recall and precision of each search strategy. We investigated differences between the presence of a record in a database and its retrieval.Results
Thirty of 31 studies were present in at least one database. Yields of individual databases ranged from 0% to 90% (median 23%). Two combinations of databases identified all 30 studies: Cochrane Central Register of Controlled Trials (CENTRAL) and Science Citation Index (SCI); or CENTRAL, MEDLINE and PreMEDLINE.Conclusions
In a systematic review of a range of interventions used to manage frozen shoulder, at least two databases and reference checking were required to retrieve all included studies, but searching for future reviews should not be restricted. 相似文献14.
Susan Jane Heron Betsy Simpson Amy K. Weiss Jean Phillips 《Cataloging & classification quarterly》2013,51(1-3):139-155
The eleven state universities of Florida have long shared an integrated library system architecture, but maintained separate databases. In 2009 the deans and directors of the eleven state university libraries tasked the three largest libraries to investigate the feasibility of combining all catalogs into a single bibliographic entity. With the help of a central automation group, the three successfully negotiated the fine line between sharing data and retaining the unique work created by each of the three libraries. The groundwork laid in this initiative should prove valuable to other libraries seeking to centralize functions and pool resources. 相似文献
15.
《Journal of Web Librarianship》2013,7(2):80-95
Creating a learnable, effective, and user-friendly library Web site hinges on providing easy access to search. Designing a search interface for academic libraries can be particularly challenging given the complexity and range of searchable library collections, such as bibliographic databases, electronic journals, and article search silos. Library Web designers must decide whether to present users with a single search interface—one that searches across content silos by default—or to offer an interface that exposes the various silos available. Designers must also contend with the user's entire search experience and determine how search should appear on the library home page as well as in global navigation systems. In the spring of 2010, the North Carolina State University Libraries sought to answer search design questions for an upcoming Web site design effort. The Libraries evaluated two different search interfaces to determine whether a tabbed search approach with options to pre-select silos is an effective design for end users. Findings show that a tabbed search interface is an effective design device for presenting multiple silos. This study outlines the methods the North Carolina State University Libraries used to conduct usability testing as well as observations, findings, and recommendations about effective design of search on academic library Web sites. 相似文献
16.
B Glitz 《Special libraries》1988,79(1):28-33
The UCLA Biomedical Library tested a six-month portion of the MEDLINE database on compact disc to determine its potential application in a large, university health sciences library environment. Patron response to the system, previous search experience, and actual search strategies were recorded. Although the overwhelming user response was positive in spite of little previous experience with online searching, results show underutilization of the system because of both software and hardware problems. The implications of this test underline the important role libraries must take in guaranteeing that new reference tools like CD-ROM be made genuinely user-friendly. 相似文献
17.
This paper describes the goals, tasks, and main areas of bibliographic control over documents that enter the databases of the Institute of Scientific Information on Social Sciences (INION). It analyzes the features of how bibliographic records of publications on social sciences and humanities (scientific, abstract-analytical, information, scientific-methodical, reference and bibliographic records) are formed. The functions of the software technological complex for automated analysis of the names of persons who are responsible for various types of publications are disclosed. The paper considers the potential of modern software and technological tools for bibliographic analysis and control of bibliographic records, references and citations, including bibliographic managers, scientific work organizers, knowledge managers, and personal information managers. 相似文献
18.
19.
The Health Science Library at University of Tennessee (UT), Memphis has taken advantage of a campuswide network for the purpose of providing enhanced access to library services. With a terminal or microcomputer, members of the UT Memphis community can use an electronic menu system to complete photocopy, interlibrary loan, and computer literature search request forms; leave messages or sign up for library workshops; use electronic mail to receive citations and abstracts from computer literature searches; use an electronic bulletin board to scan the library's new acquisitions lists, library hours, services, and policies; and use bibliographic retrieval software to search the library's locally mounted databases. Remote access to library services and electronic resources, which is available twenty-four hours a day, could potentially save users time and the institution money. Remote access, however, is intended to supplement, not to supplant or discourage, in-house library use. 相似文献
20.
《Journal of Web Librarianship》2013,7(4):375-376
Libraries today face an increasing challenge: to provide relevant information to diverse populations with differing needs while competing with Web search engines like Google. In 2009, a large group of libraries, including the University of Nebraska-Lincoln Libraries, joined with Innovative Interfaces as development partners to design a new type of discovery tool. The concept of information portals best supports the research and instructional needs of our communities by organizing and presenting information that incorporates licensed databases, text, multimedia, and other relevant sources. The discovery tool under examination by University of Nebraska-Lincoln and Encore integrates searches of the catalog, locally created full-text and image sources, and articles from licensed databases with navigation options that facilitate narrowing and expanding search results. This information portal development is an ongoing process with the goal of providing a tool that is as easy to use as Web search engines and that preserves the quality that library users expect. This article explores the requirements for an information portal and describes the challenges University of Nebraska-Lincoln faced when implementing Encore. Statistics from the initial implementation are presented, along with recommendations for future usability studies to evaluate where additional improvements should be made. 相似文献