全英文检索.docVIP

利用全英文数据库——Elsevier进行文献信息检索实例 检索课题名称：网络资源管理 课题分析： 中文关键词为：网络资源， 管理 英文关键词为：Cyber resource management/control 选择有哪些信誉好的足球投注网站工具：Elsevier数据库 构建检索策略： 因“cyber resource”为课题的主体部分，应优先检索，“management/control”也应同时出现，故制定如下检索策略“（）”表优先、“*”表示并且：（Cyber resource）*(management or control) 简述检索策略调整过程: 在Elsevier栏中输入检索词 Cyber resource management/control 检索结果共5001篇 由于检索结果过多，故限定时间为2006年至今，共有哪些信誉好的足球投注网站结果2735条，在此 基础上，将有哪些信誉好的足球投注网站范围限定为social science,共有哪些信誉好的足球投注网站结果947条。 整理检索结果 从以上文献中选择出3条切题文献 1. Structural relationships among internal locus of control, institutional support, flow, and learner persistence in cyber universities Young Ju Jooa, , , Sunyoung Joungb, , , Woo Jin Sima a Dept. of Educational Technology, Ewha Womans University, 11-1 Daehyun-Dong, Seodaemun-Gu, Seoul, Republic of Korea b Dept. of Education, Kookmin University, 861-1 Jeongneng-Dong, Seongbuk-Gu, Seoul, Republic of Korea Available online 13 December 2010 Abstract Although cyber education has become significant due to the development of appropriate information and communication technology, it has a problem as compared to traditional educational methods’ learning outcomes: a low rate of learner persistence. Learning outcomes in the cyber environment are complex phenomena affected by various factors, which need integrative comprehension regarding how the variables affect learning outcomes, for qualitative improvement. The current study aimed to establish a structural equation model explaining the causal relationships among internal locus of control, institutional support, flow, and learner persistence, and to examine the practical direct and indirect effects among them. Therefore, we conducted surveys on these variables, in order to examine the causal relationships among them. We received responses from 568 students at W Cyber University. The results indicate direct effects between learner’s internal locus of control and flow (? = .273), between institutional support and flow (? = .487), between internal locus of control and flow (? = .333), and between flow