医疗卫生网络信息资源评价综述

通过参考大量国内外有关网络医疗卫生信息资源评价的文献,阐述了网络医疗信息资源评价研究的意义,并将网络医疗卫生信息资源评价方法分为定量评价、定性评价、评价性元数据的方法和综合评价法,对各类方法进行了介绍。最后,对网络医疗卫生信息资源评价的发展趋势作了预测,并阐述了其对医疗卫生事业的影响。     

基于UML的生态地球化学评估系统的建模和设计

本文介绍了基于UML的长株潭地区生态地球化学评估系统的建模和设计过程。在分析与设计系统时有选择地利用UML提供的各种视图构建了需求模型、静态模型、动态模型和实现模型。     

The evidence for the impact of policy on physical activity outcomes within the school setting: A systematic review

BackgroundDespite the well-established health benefits of physical activity (PA) for young people (aged 4–19 years), most do not meet PA guidelines. Policies that support PA in schools may be promising, but their impact on PA behavior is poorly understood. The aim of this systematic review was to ascertain the level and type of evidence reported in the international scientific literature for policies within the school setting that contribute directly or indirectly to increasing PA.MethodsThis systematic review is compliant with Preferred Reporting Items for Systematic Review and Meta-Analysis guidelines. Six databases were searched using key concepts of policy, school, evaluation, and PA. Following title and abstract screening of 2323 studies, 25 progressed to data synthesis. Methodological quality was assessed using standardized tools, and the strength of the evidence of policy impact was described based on pre-determined codes: positive, negative, inconclusive, or untested statistically.ResultsEvidence emerged for 9 policy areas that had a direct or indirect effect on PA within the school setting. These were whole school PA policy, physical education, sport/extracurricular PA, classroom-based PA, active breaks/recess, physical environment, shared use agreements, active school transport, and surveillance. The bulk of the evidence was significantly positive (54%), 27% was inconclusive, 9% was significantly negative, and 11% was untested (due to rounding, some numbers add to 99% or 101%). Frequency of evidence was highest in the primary setting (41%), 34% in the secondary setting, and 24% in primary/secondary combined school settings. By policy area, frequency of evidence was highest for sport/extracurricular PA (35%), 17% for physical education, and 12% for whole school PA policy, with evidence for shared use agreements between schools and local communities rarely reported (2%). Comparing relative strength of evidence, the evidence for shared use agreements, though sparse, was 100% positive, while 60% of the evidence for whole school PA policy, 59% of the evidence for sport/extracurricular PA, 57% of the evidence for physical education, 50% of the evidence for PA in classroom, and 50% of the evidence for active breaks/recess were positive.ConclusionThe current evidence base supports the effectiveness of PA policy actions within the school setting but cautions against a “one-size-fits-all” approach and emphasizes the need to examine policy implementation to maximize translation into practice. Greater clarity regarding terminology, measurement, and methods for evaluation of policy interventions is needed.     

基于企业生命周期理论的企业家素质SVM评价方法

基于企业生命周期理论,考察企业不同阶段对企业家素质的要求,构建企业家素质评价指标体系,并应用当今统计学习理论的新方法——支持向量机（SVM）对企业家素质进行综合评价,以克服现有企业家素质评价体系的不足,增强评价结果的有效性.     

馆藏文献数字化工作模式的选择

进行文献数字化有3种工作模式:本单位自主开展,业务外包,综合方式。3种方式的选择,原因不同,各有不同的特点和要求。参考文献2。     

基于链接分析的网站评价研究

从排名前50位的美国商学院中,随机抽取20个,把它们主页所在网站作为研究对象, 以指向网站的网页数和网络影响因子(Web-IF)作为测定核心网站的依据。研究表明:用这两种依据来测定核心网站,所得结果基本一致;Web-IF对评价网站质量和测定核心网站具有重要价值;在计算Web-IF时应以其他网站指向被研究对象的网页数和网站在该时刻可访问到的网页数作为依据;布拉德福定律可能适用于核心网站的研究。表3。参考文献11。     

图书馆电子资源后评估:内容与应用

分析了图书馆电子资源后评估的含义、重要性和内容,探讨了评估结果在图书馆服务方面的应用,以及在提升电子资源服务绩效方面产生的效益。     

网络科技论文专家评价模型研究

网络科技论文专家评价模型定量指标有:被访次数、被引次数、被下载和打印次数、被转载次数、引文数量、链接数量和相关成果获奖次数等;定性指标有:权威性、准确性、新颖性、全面性和便利性等。可按一定的规范流程对专家评价模型指标进行量化处理。应按确定评价对象、确定专家评价团、确定评分标准、进行数据分析、写评价报告和收集反馈信息的流程实施专家评价模型。表1。参考文献3。     

国家科技图书文献中心预订外文科技文献资源分析与评价

采用文献计量学和信息分析等方法对国家科技图书文献中心预订外文科技文献资源进行分析和评价。主要评价指标包括:是否被权威数据库收录、是否世界著名出版机构出版、被国外著名图书馆收藏情况、SCI影响因子值及SCI被引用次数、国内缺藏情况、是否属于收藏薄弱学科的期刊、被专家学者推荐情况。通过整体与分散评价,最终选出基本符合主要指标的期刊和会议文献作为新增文献资源的备选源。表3。参考文献7。     

略论图书馆服务功能增值评价

图书馆服务功能评价在图书馆评价体系中处于核心地位，它直接影响着对图书馆评价原则以及图书馆的发展方向。运用增值评价理念评估图书馆服务功能，是拓展图书馆服务功能和完善图书馆评价体系的重要手段。