共查询到20条相似文献，搜索用时 15 毫秒
1.
With so many options available for searching MEDLINE on the World Wide Web or as a component of an online service, evaluation criteria are suggested as a means of assisting librarians in determining the positive and negative aspects of alternative MEDLINE sites. A set of searches was utilized to systematically compare MEDLINE sites. Sites evaluated included Avicenna, America Online, HealthGate, PubMed, Medscape, and Physicians' Online. Some features used to evaluate these sites were: default fields; operators (default); access to MeSH; subheadings; stop words protected in MeSH; truncation; and stemming. This article will describe the group process used to arrive at the evaluation criteria, as well as some general conclusions which will help librarians in directing their users to a particular MEDLINE site. 相似文献
2.
《Medical reference services quarterly》2013,32(4):35-44
Health professionals are collecting and charting data about the family history of their patients in order, to determine if a predisposition to heart, stroke, cancer and other debilitating conditions can be detected or alleviated through patient.education and preventive medicine. Family history-taking for the purposes of preventive medicine is introduced, along with a brief history of the field. The pedigree chart and the genogram are described and their use by health personnel is discussed. A brief search strategy on MEDLINE and a selected bibliography are presented to aid the health sciences librarian to find information on the family history, genograms or pedigree charts. 相似文献
3.
B J Curtis 《Medical reference services quarterly》1984,3(4):35-44
Health professionals are collecting and charting data about the family history of their patients in order to determine if a predisposition to heart, stroke, cancer and other debilitating conditions can be detected or alleviated through patient education and preventive medicine. Family history-taking for the purposes of preventive medicine is introduced, along with a brief history of the field. The pedigree chart and the genogram are described and their use by health personnel is discussed. A brief search strategy on MEDLINE and a selected bibliography are presented to aid the health sciences librarian to find information on the family history, genograms or pedigree charts. 相似文献
4.
OBJECTIVE: To evaluate the adequacy of the MEDLINE instruction routinely given to all entering medical students at the University of Miami School of Medicine and the ability of students to search effectively for and retrieve evidence-based information for clinical decision making by the end of their third-year. METHODOLOGY: The authors developed and implemented a strategy for evaluating the search strategies and articles selected by third-year students, who participated in the Objective Structured Clinical Examination (OSCE) in June 1996, 1997, and 1998, and reviewed the literature on evidence-based medicine and evaluation of medical student searches. RESULTS: A mean of 5% of the students' search strategies and a mean of 26% of articles selected were ranked "excellent" or "good"; a mean of 26% of search strategies were ranked "fair" and a mean of 69% were ranked "poor"; and a mean of 22% of articles selected were ranked "fair" and a mean of 52% were ranked "poor" based on the strategy developed to evaluate student searches. CONCLUSIONS: Evaluating medical student searches for evidence-based information is an effective way of evaluating students' searching proficiency, and, in turn, the adequacy of the instruction they receive. Based on the results of the OSCE test, the school of medicine expanded the library's educational role and the library implemented major changes in the training program. Information on evidence-based medicine is now incorporated into the MEDLINE instruction. Library faculty evaluate the required searches performed by students for evidence-based information during their first and second years; 30% of students are identified for follow-up, individualized instruction based on the evaluation; and a new case-based curriculum has been proposed with a fourteen-week problem-based learning (PBL) block. These developments are timely in light of the evidence-based competencies recently published by the Association of American Medical Colleges. 相似文献
5.
To determine possible uses for MEDLINE in the hospital library, health practitioners requesting literature searches were provided with both a manual and a MEDLINE search. Patron receptivity to MEDLINE was good, but the manual search was more often preferred. The health practitioners responding to a questionnaire apparently had delegated literature searching and evaluation of material to the hospital librarians, especially when clinically related information was needed. In the community hospitals where both the search and the selection of material are the responsibility of the librarian, MEDLINE can be used as the primary search tool or to supplement material provided. 相似文献
6.
[目的/意义] 厘清转化研究测度与评估的基础理论和方法体系,推动我国转化医学评估体系的建立和基于证据的转化医学科技政策的制定以及转化医学项目、机构的科学管理。[方法/过程] 对Web of Science和PubMed收录的有关转化研究测度与评估的文献进行综述,对美国、英国提出的转化医学评估体系进行案例分析。[结果/结论] 国际上对转化研究的测度和评估主要包括两方面:一是微观层面的基于转化研究全谱段上不同属性的研究活动之间的引用网络分析或数据关联分析测度转化研究过程;二是宏观层面的转化研究影响力与绩效评估。目前转化研究的概念包括T模型和过程模型两种,前者强调转化研究的阶段和基本要素,适于从微观层面对转化研究过程进行测度;后者强调转化研究的关键步骤和里程碑式成就,适于从宏观层面对转化医学研究机构、相关专项计划或基金资助绩效进行评估。现阶段我国的转化医学应重视"在国际已有成果基础上开展转化研究"的模式,在我国重视发展转化医学的背景下,加强对具体医学领域转化研究过程的测度分析、对适合我国转化医学发展的科研成果评价体系以及转化医学研究中心绩效评估体系的研究。 相似文献
7.
Background: Search filters have been developed in MEDLINE and EMBASE to help overcome the challenges of searching electronic databases for information on adverse effects. However, little evaluation of their effectiveness has been carried out. Objectives: To measure the sensitivity and precision of available adverse effects search filters in MEDLINE and EMBASE. Methods: A case study systematic review of fracture related adverse effects associated with the use of thiazolidinediones was used. Twelve MEDLINE search strategies and three EMBASE search strategies were tested. Results: Nineteen relevant references from MEDLINE and 24 from EMBASE were included in the review. Four search filters in MEDLINE achieved high sensitivity (95 or 100%) with an improved level of precision from searches without any adverse effects filter. High precision in MEDLINE could also be achieved (up to 53%) using search filters that rely on Medical Subject Headings. No search filter in EMBASE achieved high precision (all were under 5%) and the highest sensitivity in EMBASE was 83%. Conclusions: Adverse effects search filters appear to be effective in MEDLINE for achieving either high sensitivity or high precision. Search filters in EMBASE, however, do not appear as effective, particularly in improving precision. 相似文献
8.
The use of MEDLINE at the Calder Memorial Library of the University of Miami School of Medicine has grown so substantially over the past one and one-half years that we felt an evaluation of the service was appropriate. A one-page questionnaire was sent to 350 patrons who had requested MEDLINE searches in 1973. The response validated many of our assumptions about the user group and their reasons for using MEDLINE. Most surprising were the degree of enthusiasm, the willingness to pay out of personal funds, the apparent lack of knowledge about SDILINE, and the small number of critical comments. We expect that the experience gained from this assessment will enable us to make improvements in some aspects of our service, as well as to undertake more subject-specific evaluations at shorter intervals in the future. 相似文献
9.
Evidence-Based Medicine Reviews (EBMR) is a new full-text product from Ovid Technologies. EBMR supports the practice of evidence-based medicine (EBM) by providing access to two premiere EBM resources: the Cochrane Database of Systematic Reviews from the international Cochrane Collaboration, and Best Evidence from the American College of Physicians-American Society of Internal Medicine. Both resources alert health care professionals, researchers, and librarians to clinically relevant and methodologically sound studies by providing access to full-text reviews and meta-analyses of clinical literature. Value-added features include links to EBMR from MEDLINE, alerting MEDLINE users to available reviews. An "EBM Reviews" limit within MEDLINE facilitates access to the EBMR database contents. 相似文献
10.
N S Hewison 《Bulletin of the Medical Library Association》1989,77(4):332-336
The emergence of CD-ROM (compact disc/read-only memory) versions of the MEDLINE database requires experienced MEDLINE searchers to examine assumptions about searching MEDLINE, since some expectations may not be fulfilled by this new technology. When applied to a particular CD-ROM MEDLINE product, the evaluation procedure involves testing assumptions concerning database contents; mechanics of searching; display, print, and download capabilities; and user-friendly features. The extent to which a CD-ROM product preserves and exploits important MEDLINE strengths should be assessed, e.g., the MeSH controlled vocabulary, the designation of major and minor MeSH emphasis, and the use of subheadings. Search software characteristics that affect ease of searching and quality of results also need to be examined, e.g., the ability to truncate search terms and the order of precedence in which Boolean operators are evaluated. A checklist to assist in the evaluation process is presented, including search examples for use in testing search functions. 相似文献
11.
Access to scholarly information in the disciplines of education and medicine occurred primarily through the simultaneous development of two bibliographic databases. The Education Resource Information Center (ERIC) originated as a resource designed to be comprehensive in its inclusion of peer-reviewed and unpublished literature for the entire education community. MEDLINE began as a resource of selective materials for physicians and researchers. Today, ERIC includes selected peer-reviewed literature directed primarily to researchers and practitioners, although others use the database, while MEDLINE is a vast information system serving all health professionals and consumers. This literature analysis of their policy history shows important differences in their evolution. Application of the Multiple Streams Framework can help in formulating possible explanations for the different developmental paths. These paths include: the degree of centralization or decentralization of the information system's organizational structure; the stability of the organizational mission; and the success of assessment strategies, federal budgetary support, and bias toward science in federal policy-making. These two government-supported databases served as models for a plethora of other databases. However, one was successful in acquiring funding from the outset, while the other continually suffered deficiencies in support. The importance of each to public welfare should have been obvious, but was not. 相似文献
12.
Kellie N. Kaneshiro Thomas W. Emmett Susan K. London Rick K. Ralston Margaret W. Richwine Elaine Noonan Skopelja 《Medical reference services quarterly》2013,32(3):284-301
ABSTRACT Since 2002, library faculty at the Indiana University School of Medicine have taught third-year medical students how to retrieve the best evidence from MEDLINE to address their clinical questions. In preparation for their Neurology, Medicine, and Psychiatry clerkships, students attended a review of evidence-based medicine principles and techniques for searching the literature. The session was team-taught by two faculty members, one from the Internal Medicine department and the other from the Library. The librarian reviewed important MEDLINE principles for constructing a good subject search and applying appropriate evidence-based filters. During the clerkships, students were asked to generate clinical questions arising from their patient encounters, searched MEDLINE for the best evidence, critiqued the results, and then applied them back to their patients' care. Library faculty provided individualized feedback on the student searches. A follow-up session two months later reinforced MEDLINE principles, used student searches as examples, and extended the discussion to other evidence-based, point-of-care resources. To add to the interactivity of the follow-up sessions, librarians used an audience response system to measure students' understanding of literature retrieval techniques and to gauge student preferences for information seeking on clinical topics. Overall, the sessions have been well-received by the students. 相似文献
13.
《Behavioral & Social Sciences Librarian》2013,32(4):303-319
The field of behavioral medicine has developed out of a convergence of several antecedent disciplines, most noticeably psychosomatic medicine, and behavioral psychology. Definitions of the field vary, but it is generally agreed to involve the formal application of behavioral principles to problems of clinical medicine. This application may take the form of behavioral techniques which (a) facilitate biomedical treatment, (b) assist in the modification of habits with undesirable health consequences, (c) assist in the treatment of stress-related diseases, or (d) produce direct alterations in pathological states. This article defines and traces the field of behavioral medicine. Relevant journal literature is discussed. 相似文献
14.
Gurpreet K Rana Doreen R Bradley Stanley J Hamstra Paula T Ross Robert E Schumacher John G Frohna Hilary M Haftel Monica L Lypson 《Journal of the Medical Library Association》2011,99(1):77-81
Objective:
The objective of this study was to validate an assessment instrument for MEDLINE search strategies at an academic medical center.Method:
Two approaches were used to investigate if the search assessment tool could capture performance differences in search strategy construction. First, data from an evaluation of MEDLINE searches from a pediatric resident''s longitudinal assessment were investigated. Second, a cross-section of search strategies from residents in one incoming class was compared with strategies of residents graduating a year later. MEDLINE search strategies formulated by faculty who had been identified as having search expertise were used as a gold standard comparison. Participants were presented with a clinical scenario and asked to identify the search question and conduct a MEDLINE search. Two librarians rated the blinded search strategies.Results:
Search strategy scores were significantly higher for residents who received training than the comparison group with no training. There was no significant difference in search strategy scores between senior residents who received training and faculty experts.Conclusion:
The results provide evidence for the validity of the instrument to evaluate MEDLINE search strategies. This assessment tool can measure improvements in information-seeking skills and provide data to fulfill Accreditation Council for Graduate Medical Education competencies.Highlights
- The University of Michigan MEDLINE Search Assessment tool can be used to assess search skills in residency education.
- Five elements were identified as critical elements in the development of an effective MEDLINE search strategy: inclusion of all search concepts, appropriate use of Medical Subject Headings, appropriate use of search limits, successful combination of all concepts, and search efficiency.
Implications
- This validated assessment tool can serve as an effective means to measure improvements in residents'' information-seeking skills and provide data to fulfill Accreditation Council for Graduate Medical Education competencies.
15.
R Weitzel 《Bulletin of the Medical Library Association》1976,64(1):32-35
Supplying MEDLINE services to a widely dispersed user population in the developing countries creates numerous problems not encountered by other MEDLINE centres. The inability to interact with the user complicates system promotion and makes search formulation sometimes a gamble. Nevertheless, an evaluation survey has shown high user satisfaction. Of great concern is the still inadequate solution of document delivery. Near-term objectives are the broadening of geographic coverage and the integration of search processing with supporting hard copy supply. 相似文献
16.
B M Walcott 《Bulletin of the Medical Library Association》1999,87(3):287-291
Diagnostic medical sonography has been evolving as a recognized allied health occupation since the early 1970s, but no bibliometric studies of the literature of the field have been published. This study, part of the Medical Library Association Nursing and Allied Health Resources Section's Project for Mapping the Literature of Allied Health, attempted to identify the core journals in diagnostic medical sonography and determine how well these journals are indexed by MEDLINE, EMBASE/Excerpta Medica, and the Cumulative Index to Nursing and Allied Health Literature (CINAHL). Citation analysis was done using the three journals listed for the field by the Brandon/Hill list. Characteristics of two of these three journals affected the results to the extent that more data should be gathered to reach conclusions about the literature of diagnostic medical sonography as a whole. Results of the analysis do suggest that the literature of echocardiography, which is a special area of diagnostic medical sonography, is indexed much more completely by MEDLINE and EMBASE/Excerpta Medica than by CINAHL. Suggestions are made for librarians making collection development decisions in this area of allied health. 相似文献
17.
T. Elizabeth Workman Marcelo Fiszman John F Hurdle Thomas C Rindflesch 《Journal of the Medical Library Association》2010,98(4):273-281
Objective:
This paper examines the development and evaluation of an automatic summarization system in the domain of molecular genetics. The system is a potential component of an advanced biomedical information management application called Semantic MEDLINE and could assist librarians in developing secondary databases of genetic information extracted from the primary literature.Methods:
An existing summarization system was modified for identifying biomedical text relevant to the genetic etiology of disease. The summarization system was evaluated on the task of identifying data describing genes associated with bladder cancer in MEDLINE citations. A gold standard was produced using records from Genetics Home Reference and Online Mendelian Inheritance in Man. Genes in text found by the system were compared to the gold standard. Recall, precision, and F-measure were calculated.Results:
The system achieved recall of 46%, and precision of 88% (F-measure = 0.61) by taking Gene References into Function (GeneRIFs) into account.Conclusion:
The new summarization schema for genetic etiology has potential as a component in Semantic MEDLINE to support the work of data curators.Highlights
- Semantic MEDLINE streamlines information retrieval by succinctly expressing the meaning of sometimes complicated text and summarizing output according to a user''s needs.
- Semantic MEDLINE identifies genes noted in biomedical text as associated with a disease process.
- Semantic MEDLINE can potentially simplify secondary database curation.
Implications
- Library information retrieval services can potentially benefit from automated applications such as Semantic MEDLINE.
- Use of such automated applications can facilitate the library''s work in interdepartmental collaborative endeavors, thus reinforcing the library''s core value in its parent institution.
18.
Colette Hochstein Jeanne Goshorn Florence Chang 《Medical reference services quarterly》2013,32(2):154-163
The Drug Information Portal is a free Web resource from the National Library of Medicine (NLM) that provides a user-friendly gateway to current information for more than 15,000 drugs. The site guides users to related resources of NLM, the National Institutes of Health (NIH), and other government agencies. Current drug-related information regarding consumer health, clinical trials, AIDS, MeSH pharmacological actions, MEDLINE/PubMed biomedical literature, and physical properties and structure is easily retrieved by searching on a drug name. A varied selection of focused topics in medicine and drugs is also available from displayed subject headings. This column provides background information about the Drug Information Portal, as well as search basics. 相似文献
19.
Doreen R. Bradley Gurpreet Kaur Rana Patricia W. Martin Robert E. Schumacher 《Journal of the Medical Library Association》2002,90(2):194-201
Purpose: The study assesses potential for improving residents'' evidence-based medicine searching skills in MEDLINE through real-time librarian instruction.Subjects: Ten residents on a rotation in a neonatal intensive care unit participated.Methodology: Residents were randomized into an instruction and a non-instruction group. Residents generated questions from rounds and searched MEDLINE for answers. Data were collected through observation, search strategy analysis, and surveys. Librarians observed searches and collected data on questions, searching skills, search problems, and the test group''s instruction topics. Participants performed standardized searches before, after, and six-months after intervention and were scored using a search strategy analysis tool (1 representing highest score and 5 representing lowest score). Residents completed pre- and post-intervention surveys to measure opinions about MEDLINE and search satisfaction.Results: Post-intervention, the test group formulated better questions, used limits more effectively, and reported greater confidence in using MEDLINE. The control group expressed less satisfaction with retrieval and demonstrated more errors when limiting. The test and control groups had the following average search scores respectively: 3.0 and 3.5 (pre-intervention), 3.3 and 3.4 (post-intervention), and 2.0 and 3.8 (six-month post-intervention).Conclusion: Data suggest that measurable learning outcomes were achieved. Residents receiving instruction improved and retained searching skills six-months after intervention. 相似文献
20.
J M Nixon 《Medical reference services quarterly》1989,8(3):27-35
This study compares six databases which contain information on applied and clinical human nutrition: AGRICOLA, BIOSIS, CAB ABSTRACTS, EMBASE, MEDLINE, and SCI-SEARCH. Five research questions were searched, and the results were compared to identify the database of first choice and to determine the degree of overlap among the databases. Results indicate that for most of the human nutrition questions searched, MEDLINE was the most productive database. However, MEDLINE alone only uncovered 24% to 69% of the citations available. A combination of MEDLINE and at least one other database is recommended. The results of this study suggest that for most human nutrition questions, AGRICOLA is the best file to complement MEDLINE. 相似文献