英语四级网考对英语视听说课程的新要求

在国家教育部颁布的教学《要求》及《全国大学生四、六级考试改革方案（试行）》的要求下,作者从大学英语视听说课程的角度出发,调整教学任务,为适应四级网考对视听说课程做出教学改革以培养具有较强口语表达能力的综合性人才。利用当下新兴的网络及多媒体教学平台,加强学生的网络自主学习能力,使构建主义和计算机信息技术相结合,建立新的视听说自主学习模式。     

广州大学生网络游戏成瘾与无聊倾向性的相关研究

目的：探讨网络成瘾与无聊倾向性的相关关系,以了解当下大学生网络成瘾的现状及相关因素。方法：采用网络游戏成瘾量表和大学生无聊倾向性问卷,对广州某高校800名同学随机派发,并进行差异检验和相关分析。结果：①大学生网络游戏成瘾均分为36.07,低于中分,处于中等偏下水平,在性别和专业类型上大学生网络游戏成瘾现象差异显著;②大学生无聊倾向性在性别和专业上没有显著差异,但在其部分维度上存在显著差异;③网络游戏成瘾组的无聊倾向性显著高于非网络游戏成瘾组;④大学生网络游戏成瘾与无聊倾向性呈显著正相关。结论：大学生网络游戏成瘾与无聊倾向性相关,无聊倾向性对网络游戏成瘾有显著预测作用。     

基于SSL协议的电子长途客票系统的安全性设计研究

随着计算机、网络及通讯技术的发展,电子商务已成为人们生活中不可缺少的一部分,与此同时安全性问题也成为了电子商务网站所面临的的核心问题。文章设计模拟实现电子长途客票系统的网上安全支付子系统,模拟完成在银行服务器端和客户/商家进行基于SSL协议的安全通信的支付过程。     

基于群体特征的社交僵尸网络检测方法

攻击者通过在社交网络中部署由大量社交僵尸账号组成的社交僵尸网络,对社交网络进行渗透,严重危害了社交网络和用户的信息安全.我们首次提出一种基于群体特征的社交僵尸网络检测方法.提取社交僵尸网络中账号注册时间集中、昵称相似和活跃时间一致3个群体特征,结合数据挖掘算法,设计一种社交僵尸网络的检测方法.在对新浪微博中48万个账号的检测实验中,检测出多个社交僵尸网络,共包含6 899个社交僵尸账号.较低的漏报率和误报率表明该方法对于社交僵尸网络和僵尸账号的检测是可行和有效的.     

Establishing a Community of Inquiry through Hybrid Courses in Clinical Social Work Education

Utilizing the conceptual framework of Garrison, Anderson, and Archer for critical inquiry, this paper outlines the importance of the community of inquiry (COI) model and how it may inform online social work education. Integrating the COI model, we discuss how online learning in the classroom with a hybrid approach has been used to facilitate critical reflection and discourse. To illustrate this approach, we provide two case examples from clinical courses taught in an MSW program.     

基于联合目录的网络期刊导航系统-几个问题的探讨

近几年,网络出版物尤其是网络期刊的数量迅速增长。鉴于网络期刊出版的复杂性,图书馆面临着如何组织管理、描述网络期刊,更好地向读者提供服务的新任务。本文作者在建设网络期刊导航系统经验的基础上,对网络期刊导航系统建设中的网络期刊著录问题、URL问题等进行分析和描述,并结合国外网络期刊管理与服务的先进经验,总结出网络期刊著录、服务的一些有效的方法。     

The challenges of undergraduate online learning experienced by older workers in career transition

This paper presents the findings of a research project on older workers transitioning into work as vocational educators through online undergraduate university study. The study involved interpretive phenomenological analysis of the experiences of 10 older learners. Their experience of online learning was found to be shaped by diverse influences and to comprise three distinct but interrelated elements: their use of technology, their use of hypermedia and their independent learning. Challenges raised by each of these elements called for a distinctive response from the university, respectively: short-term, readily available technical advice and support; tutoring to develop Web navigation and exploration skills, or the provision of selected readings; and opportunities for online or face-to-face dialogical engagement with others. Recommendations for the online provision of higher education for such learners, then, pointed to the need for an appropriately distinctive response to challenges in each of the three elements: the use of technology calling for individualised and immediate responsiveness to learner issues; the use of hypermedia calling for aggregated advice and resources prepared in advance; and independent learning calling for the prior structuring of opportunities for interactive engagement. Further research is suggested focusing on the relative cost and effectiveness of different approaches to addressing those needs.     

Student performance in computing education: an empirical analysis of online learning in programming education environments

The benefits of using online exercises have been analysed in terms of distance learning, automatic assessment and self-regulated learning. In this study, we have not found a direct proportional relationship between student performance in the course exercises that use online technologies and the exam grades. We see that the average submission rate to these online exercises is not positively correlated with the exercise points. Yet, our results confirm that doing exercises along supports student learning and skill accumulation equipping them with the knowledge of programming. While the student performance in programming courses is affected by factors such as prior background in programming, cognitive skills and the quality of teaching, completing the course exercises via learning-by-doing is an indispensable part of teaching. Based on the student feedback from the course survey, the students are highly satisfied with using online technologies as part of learning.     

Creating a learner-centered teaching environment using student choice in assignments

Learner-centered teaching (LCT) has been found to be a more effective pedagogy for online students, as traditional teaching methods do not work well in online courses. Professors in an upper-level technology management class revised their online introductory course to incorporate cafeteria-style grading. This LCT approach allowed students to select assignments they wanted to complete. More assignments were offered than needed to achieve an A grade. They included traditional projects such as research papers as well as more engaged activities such as demonstrating or mastering skills. To determine whether these changes promoted active learning, course data were obtained and analyzed. Students completed a range of assignments, showed mastery on a number of skills, and were overwhelmingly positive about having flexible options. Tellingly, 36% of students completed more assignments than were needed to earn the top grade.     

Persistence factors revealed: students’ reflections on completing a fully online program

Despite their rapid growth, online programs routinely face student attrition. How to retain students and help them successfully complete is usually a top priority for online programs. This study investigated persistence factors that contributed to students’ successful completion from one of the largest and most successful online programs in the United States of America. Results show that both personal and program attributes contributed to students’ successful completion of a fully online program. Main individual attributes include interest in or career goals related to technology, time and effort invested, and perceived utility of learning. Main program attributes include relevancy of courses to individual or professional needs, satisfaction with courses and program, and ties between coursework and job promotion. Results of this study have implications in terms of prioritizing different attributes and strategizing resources to improve completion and graduation rates for fully online programs.