Pathways of Immigrant Political Socialization: Examining the Role of News Media,Social Connections,and Community Interaction

Going beyond the traditional socioeconomic status model of political participation, this study examines pathways that lead to the sociopolitical incorporation of immigrants in the USA, with a focus on the role of communication socialization agents. Using a Current Population Survey sample of 7,626 first-generation immigrants in the USA, results show that communication socialization agents significantly contribute to immigrants’ political socialization, and an important mediating path translates political learning into greater political engagement. Results also identify ethnic differences in how socialization variables affect immigrants’ socialization.     

析知识军事环境下美军信息素养培养

作者认为信息素养包括信息意识、信息检索能力和信息运用能力.在知识军事环境下,美军军事信息素养具有以明确规范的军事信息需求激发信息意识,以熟悉信息环境和信息资源并熟练利用现代信息工具为检索能力主体,以"联合知识与分发能力"为信息利用能力核心的特点.我军单一重视信息检索能力培养的信息素养教育现状与美军"目标明确、系统综合、动态培养"的做法有较大差距.未来需要系统、动态地思考信息素养教育内涵和培养手段,优化信息素养教育.参考文献5.     

论图书馆员知识形象的塑造

时代对图书馆员提出了全新的要求,文章从馆员主体的角度和图书馆管理的角度论述了图书馆员知识形象的塑造问题.     

图书馆学学科知识地图的构建

简要介绍了知识地图的概念及构建方法,通过对CSSCI2003-2005年数据的统计分析,构建了图书馆学关键词关联图、学科专家知识地图、学科交叉图等学科知识地图,并提出了应用聚类分析来构建图书馆学关键词聚类树状图的方法。     

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。     

基于网络全局结构关系的领域重要关键词提取与分析

提取和分析领域重要关键词及其演化模式,对于探索和预测领域知识的研究重点和研究趋势具有重要的意义.论文采用特征分解的方法,提取领域知识网络中的重要结构成分,从网络全局结构关系的视角对领域中的重要关键词进行提取与分析.研究结果表明,在网络全局结构的视角下,领域中始终保持部分恒定不变的重要关键词;恒定关键词之间关联稀疏且包含...     

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.     

基于校园网的网络辅助教学系统

结合在操作系统课程教学中开展网络辅助教学的实践,讨论了网络辅助教学的可行性、必要性和主要任务。基于XML技术实现了一个网络辅助教学系统,能够在课后为学生的复习、答疑、测试、师生间的讨论交流以及个性化教学提供服务。     

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.