利用TRS建立生物医学开放存取全文期刊资源导航库

结合大连医科大学图书馆的生物医学开放存取（Open Access，OA）全文期刊资源导航库建设实践，侧重OA全文期刊资源整合，论述了应用TRS系统建立数据库的具体步骤，包括网上生物医学OA全文期刊资源的获取、建立TRS数据库、数据库在因特网的发布、数据库的维护更新等几个方面。最后提出OA全文期刊资源数据库发展前景。     

利用TRS建立生物医学开放存取全文期刊资源导航库

 

结合大连医科大学图书馆的生物医学开放存取(Open Access，OA)全文期刊资源导航库建设实践,侧重OA全文期刊资源整合，论述了应用TRS系统建立数据库的具体步骤，包括网上生物医学OA全文期刊资源的获取、建立TRS数据库、数据库在因特网的发布、数据库的维护更新等几个方面,最后提出OA全文期刊资源数据库发展前景。

     

西文期刊全文资源的整合和利用

随着因特网的飞速发展,国内外期刊出版商将期刊纷纷上网,发行网络版期刊,特别是许多免费的期刊,为用户在网上获取信息提供了极大方便。但这些免费期刊很分散,用户获取有一定困难。图书馆可以利用网络期刊和其他途径获取全文,与馆藏期刊文献进行整合,建立自己的数据库,既能丰富馆藏,又可提高文献保障率,真正实现文献资源的共用共享。     

中国生物医学文献数据库与中国学术期刊全文数据库的比较

《中国生物医学文献数据库》(CBMdisc)是中国医学科学院医学信息研究所开发研制的综合性医学文献数据库.数据库收录了1979-2000年间的近千种期刊,以及汇编、会议论文的文献题录,总计200万余条,年增长约为22万条.数据库涵盖了<中文科技资料目录(医药卫生)>、<中文生物医学期刊目次数据库>(CMCC)中收录的所有文献题录.内容涉及基础医学、临床医学、预防医学、药学、中医药学及医院管理等.随着时间的推移,CBMdisc仅有题录或文摘格式已难以满足人们准确、快速获取文献的需求,加之光盘技术应用的发展和成熟,人们渴望全文数据库光盘的出现.由清华大学主办,<中国学术期刊(光盘版)>电子杂志社编辑出版的中国学术期刊全文数据库,满足了人们“即检即得”的快速查找文献的愿望.它于1997年建立了中国学术期刊文献检索咨询站一级站,1999年10月成为<中国期刊网>的一个封闭式镜像站点,提供网上中文学术电子期刊的全文检索.目前收录3500多种核心期刊与专业特色期刊的300多万篇全文文献,6600种期刊近1000万条引文文献题录、近400万条题录文摘.分为9个专业辑:理工A(数理科学)、理工B(化学化工能源与材料)、理工C(工业技术)、农业、医药卫生、文史哲、经济政治与法律、教育与社会科学综合辑、电子技术与信息科学.     

常用国外全文数据库生物医学文献保障率评价分析

采用PubMed作为参照数据库，应用科技查新和文献检索实例，对Elsevier SDOS、EBSCO、SpringerLink、UMI ProQuest、Ovid等常用国外全文数据库生物医学文献收录情况进行小样本抽样统计、对比、分析和评价，并计算出文献保障率，旨在为医学科研人员快速、准确获取生物医学文献和图书馆选购国外全文数据库提供参考。     

医学文献的查找途径与技巧

因特网上的医学文献分布广、种类多、数量大 ,用户要在网上快速、高效、准确地获取医学文献并不容易。本文重点介绍了因特网上几种常用、有代表性的国内外医学文献资源 ,包括医学数据库、电子期刊和专利文献等的概况、查找途径和检索方法。     

基于引文分析的解放军医学图书馆馆藏期刊资源建设

军事医学科学院和解放军总医院的科研人员、医护人员是解放军医学图书馆的主要读者。用引文分析法对其2010-2012年在CMCI收录期刊发表的论文及引文情况进行统计分析,了解用户需求以及对军事医学期刊文献的利用情况,揭示该院科研人员对生物医学文献信息的需求,并提出采用高引用期刊馆藏保障率和馆藏期刊零引用率两个指标评价馆藏期刊,以指导图书馆的期刊资源建设,为资源订购调整提供依据,不断完善"面向用户需求"的馆藏资源体系。     

中文期刊全文数据库收录生物医学核心期刊论文的比较研究

分析了3个中文期刊全文数据库收录生物医学期刊文献数量、核心期刊种数及20种核心期刊1998年以来收录的论文数量。这3个数据库收录的生物医学期刊和核心期刊的完整性因中华医学会的115种期刊整体电子版权的独家代理而受到影响,因此必须合理选择和使用全文数据库,才能开创医学信息服务的新局面。     

网络获取技术在循证护理信息资源检索中的应用研究

目的 加强循证护理信息资源的获取与利用，促进循证护理的发展。方法 文献复习与信息资源检索。结果生物医学文献数据库、搜索引擎、元搜索引擎、电子期刊、重要网站都能获取网络循证护理信息资源。结论 生物医学文献数据库、搜索引擎、元搜索引擎、电子期刊、重要网站都是获取循证护理信息资源的非常重要的途径，传授这些信息资源获取的方法和技巧，是医学信息人员的重要责任。加强护理人员与医学图书情报人员的合作将有利于推动循证护理实践的开展。     

如何提高获取医学全文文献的能力

如何获取医学全文文献是广大医学生和临床医生十分关注的问题，为此，近年来有多篇文献报道，但这些文献主要是从免费的角度进行论述。事实上获取医学全文文献的途径是多方位的，而且受到很多因素的影响。笔者从校园网和非校园网两大用户群入手，从免费和付费2个方面深入地探讨获取医学全文期刊的方法和途径，旨在帮助用户更好地了解医学期刊全文库的现状，提高的其使用率和用户获取全文文献的能力。     

PCR-SSCP检测结核分枝杆菌耐利福平诊断的系统评价

目的 用Meta-分析的方法评价PCR-SSCP检测结核分枝杆菌耐利福平的准确性.方法 通过检索PUBMED、EMBASE、中国生物医学文献数据库、中国期刊全文数据库、中文科技期刊全文数据库等数据库和其他方式广泛收集文献.用QUADAS标准评价文献质量.用Meta-disc软件计算合并敏感度、合并特异度和SROC曲线下面积等.结果 最终纳入4篇外文文献(5个研究),Meta-分析显示PCR-SSCP用于结核分枝杆菌耐利福平的诊断均显示了较高的敏感度和特异度,有较高的诊断价值.其合并敏感度为97%,[95%CI(95%,99%)];合并特异度为84%,[95%CI(78%,89%)];合并阳性似然比为8.14,[95%CI(1.77,37.42)];合并阴性似然比为0.05,[95%CI(0.02,0.14)1;SROC曲线下面积:AUC=0.989 0,SE(AUC)=0.012 0.结论 目前PCR-SSCP法检测结核分枝杆菌耐利福平诊断有一定诊断价值,可作为诊断结核分枝杆菌耐利福平的确诊方法.     

中药＋枸橼酸氯米芬治疗排卵障碍性不孕的系统评价

目的评价中药＋枸橼酸氯米芬（CC）治疗排卵障碍性不孕的有效性。方法计算机检索PubMed、荷兰医学文摘数据库、Cochranelibrary、中国生物医学文献数据库、中国期刊全文数据库、中文科技期刊数据库,用Googlescholar和Medicalmartix搜索引擎在互联网上查找相关文献,收集中药＋CC治疗排卵障碍性不孕的随机和半随机对照试验。由2名研究者独立依据Cochranereviewer＇shandbook4．2．6推荐的方法评价纳入研究的文献质量,对符合纳入标准的研究采用Cochranecollaboration0RevMan4．2．10进行Meta分析。结果纳入3个随机对照试验和10个半随机对照试验,1555例排卵障碍性不孕患者。与单纯应用CC比较,中药＋CC治疗排卵障碍性不孕妊娠可提高妊娠率,相对危险度（RR）为1．68,95％可信区间（CI）为（1．50,1．89）,P〈0．00001;提高排卯率,RR为1．19,95％CI为（1．12,1．26）,P〈0．00001;提高基础体温,RR为1．27,95％CI为（1．09,1．46）,P〈0．0001;增加子宫内膜厚度,RR为1．71,95％CI为（1．38,2．12）,P〈0．00001。结论中药＋CC治疗排卵障碍性不孕优于单纯CC,但目前的研究质量较低,尚需开展高质量临床试验。     

Modern methods of searching the medical literature.

OBJECTIVE: To review the methods of electronic retrieval of biomedical journal articles; to demonstrate CD-ROM and online searching techniques; and to compare major biomedical databases. DESIGN: A CD-ROM MEDLINE search was made by a medical practitioner, with the assistance of an experienced librarian. An online MEDLINE/Excerpta Medica search was made by the same medical practitioner after completion of a two-day course in search techniques. The search example covered the period 1983 to 1992, and the topic was "whether steroid use for asthma/airways disease leads to osteoporosis". OUTCOMES: Search duration, article yield and search cost were assessed. RESULTS: The CD-ROM MEDLINE literature search took 60 minutes to find 31 articles (43% of the possible articles). This compared with an online search to the Bibliographic Retrieval Services database in Chicago, which produced the same articles when MEDLINE was searched (but took only 16 minutes) and which also found 47 articles (with an overlap of only seven) when Excerpta Medica was searched. We estimated that the combined MEDLINE and Excerpta Medica search detected 93% of all known relevant articles, based upon an assumed gold standard. CONCLUSIONS: Online searching is a fast and powerful alternative to CD-ROM searching. Formal training is necessary for quick and cheap reference finding. Other benefits such as direct transfer from online searching to your own computer bibliography database make online searching of biomedical databases essential to consider.     

Finding European bioethical literature: an evaluation of the leading abstracting and indexing services

OBJECTIVES: In this study the author aimed to provide information for researchers to help them with the selection of suitable databases for finding medical ethics literature. The quantity of medical ethical literature that is indexed in different existing electronic bibliographies was ascertained. METHOD: Using the international journal index Ulrich's Periodicals Directory, journals on medical ethics were identified. The electronic bibliographies indexing these journals were analysed. In an additional analysis documentalists indexing bioethical literature were asked to name European journals on medical ethics. The bibliographies indexing these journals were examined. RESULTS: Of 290 journals on medical ethics 173 were indexed in at least one bibliography. Current Contents showed the highest coverage with 66 (22.8%) journals indexed followed by MEDLINE (22.1%). By a combined search in the top ten bibliographies with the highest coverage, a maximum coverage of 45.2% of all journals could be reached. All the bibliographies showed a tendency to index more North American than European literature. This result was verified by the supplementary analysis of a sample of continental European journals. Here EMBASE covered the highest number of journals (20.6%) followed by the Russian Academy of Sciences Bibliographies (19.2%). CONCLUSION: A medical ethics literature search has to be carried out in several databases in order to reach an adequate collection of literature. The databases one wishes to combine should be carefully chosen. There seems to be a regional bias in the most popular databases, favouring North American periodicals compared with European literature on medical ethics.     

Use of the Web for medical information by a gastroenterology clinic population

CONTEXT: Surveys have shown that 60 million persons in the United States searched for health information online in 1998. However, lack of sampling from a clinic population limits the generalizability of these surveys to clinical practice. OBJECTIVES: To determine gastroenterology patients' access to and use of the Web as a medical information resource, to identify for what information patients search, and to determine how often physicians recommend that patients search the Web. DESIGN, SETTING, AND PARTICIPANTS: Cross-sectional survey of 1006 gastroenterology outpatients in Durham, NC, and Rockford, Ill, conducted in August 1999. MAIN OUTCOME MEASURES: Patient characteristics and education level, access to the Web, use of the Web as a medical information resource, search methods, and plans for future Web use. RESULTS: A total of 924 patients (92%) completed the questionnaire. Median age was 53 years, 41% were men, and the median education level was having completed some college. Fifty percent (462/924) reported having access to the Web. Of the 462 with access, 235 (51%) had searched the Web for medical information within the previous 12 months. Therefore, 25.5% of all patients surveyed had searched the Web for medical information within the previous year. Sixty percent of patients intended to use the Web as a medical information resource in the future. Only 35 (4%) of 825 had ever been referred to the Web by a physician. CONCLUSIONS: In this clinic setting, more than one quarter of gastroenterology outpatients reported having obtained medical information from the Web within the previous year. More than two thirds of patients stated they would use the Web as a medical information resource in the future. JAMA. 2000;284:1962-1964.     

元数据技术在医学信息资源整合中的应用

对生物医学信息资源及元数据进行分析,并在此基础上深入剖析元数据技术在不同医学信息资源整合中的应用,包括OPAC,Web Service,SFX,OAI,知识本体系统等,提出利用元数据技术整合医学信息资源时应注意的几个问题。     

虚拟护理信息服务系统的设计与实现

目的整合网络护理学科信息资源和Internet技术，进行一体化设计建立虚拟护理信息资源服务系统。方法系统采用模块化结构，学科信息资源包括复旦图书馆订购的网络数据库、网上免费护理资源、护理科研人员知识积累。系统平台构架采用Web的多层体系结构Browse Server模式，数据库为SQL Server 2000，开发工具为Jbuilder 9．0。结果系统在一个完整的平台上实现系统管理功能、信息处理功能和通讯功能，具有共享性、安全性、开放性、可扩展等特点。系统实现了护理学科信息资源数字化、一体化、网络化管理。结论建立“基于学科”的网络信息资源服务平台能够充分有效地利用生物医学网络资源，必将在生物医学领域的临床和研究工作中起到重要作用。