Enhancing the facilitation of online groups in higher education: a review of the literature on face-to-face and online group-facilitation

There still appears to be a gap between what online learning promises and what it can deliver in terms of student learning. Developments in online pedagogies and professional learning appear to lag behind the developments in technology and the promised benefits of technological transformation may not be realised. In this paper, we bring together perspectives that highlight vital aspects of online group-learning by reviewing the group-facilitation literature and the latest online learning literature to interrogate the pedagogical theories and practices currently used in online group-learning in higher education. We specifically focus on the interpersonal interactions between teachers and students, which are described in the online learning literature using the terms instructor immediacy, teaching presence, and social presence. We note differences in the literature regarding how teacher presence is interpreted and enacted and we expound the importance of the personal characteristics of the online teacher. Finally, we provide some signposts that might help course designers and teachers to improve online group learning: the intentional use of effective online learning pedagogies; a deeper understanding of what constitutes teacher presence; and strategies to enact that teacher presence with online groups. Recommendations for further research in online group facilitation are provided.     

电磁波穿过DNG媒质时的传播特性分析

针对广泛关注的DNG媒质(负折射率媒质),以有损耗的Drude型媒质为模型,对电磁波穿过DNG媒质的平行板时的传播特性做了理论分析;采用FDTD方法对正弦电磁波穿过DNG媒质的平行板的传播过程进行了数值建模,数值模拟的结果证明了正弦电磁波在穿过DNG媒质的平行板时仍然具有相速度与群速度方向相反的特性,为DNG媒质的广泛应用提供了理论基础.     

谈异形词规范的系统性原则

以系统性和规范性原则,切入45年来人们对异形词研究的得失。把现代汉语所有的异形词作为一个系统的整体,即异形词群系统,揭示其意义结构关系及其规律。认为异形词系统组内各词之间同素同构与非同素同构并存,异形词群的其他各个层级系统之间以及异形词群与非异形词群之间几乎都有一个共同的语素。在此基础上,概括出规范异形词的系统性原则的定义。     

基于Windows2000组策略的机房管理

本文在介绍Windows2000组策略的基础上,给出了如何利用组策略对计算机房进行统一管理的方法.     

小组合作学习在文言文教学中的运用摭探

文言文教学存在两难,一是教授难,一是学习难。面对这样的困境,教师多是采取课上满堂灌、课下使劲背的教学方式,虽有一定成效,但无疑破坏了文言文教学原本的韵味。采取小组合作学习可以取得良好的教学效果,提升学生语文核心素养。文章结合教学实践,对小组合作学习在文言文教学中的运用进行探究。     

大学生人际交往团体心理辅导的效果研究

目的:改善大学生的人际交往状况和自尊及心理健康状况。方法:采用团体咨询的训练方法针对大学生存在的心理问题进行人际关系训练,采用社交回避及苦恼量表(SAD)、交往焦虑量表(IAS)、羞怯量表、自尊量表(SES)、症状自评量表(SCL-90)进行评估。结果:入组大学生SAD、IAS、羞怯量表、SES、SCL-90量表的各项得分后测与前测相比发生了显著变化,部分成员在人际交往方面有了明显改进。结论:团体咨询有效改善了大学生的人际交往状况,并一定程度的提高了团体成员的自尊水平和心理健康水平。     

社会转型中的弱势群体与和谐社会构建

在工业化、市场化、城市化加速推进的社会转型期,社会分层、利益分化日益凸显,弱势群体问题对构建和谐社会可能带来冲击与挑战。社会和谐是各种利益关系、主体良性互动的结果。正视社会转型期的弱势群体问题,化解这一问题累积性爆发可能产生的社会风险,健全弱势群体由弱渐强的社会支持体系,是构建社会主义和谐社会的内在要求和重要途径。     

"程度副词+动词性词组"论略

在对两种非常有现代汉语史内涵的“程度副词 动词性词组”形式进行的讨论中,考察了它们的来源和历史,并从动词和动词性词组这两个方面分析了这一形式成立的原因和条件。     

Crossbreeding parameters for fertility traits in a rotational crossbreeding between Landrace and Piétrain pigs

The reproduction characteristics of 343 sows in six different breeding groups were analyzed to estimate the crossbreeding parameters. The results indicated that the ovulation rate and the weights of uterus and ovary are mainly determined by the additive genetic effects while the nonadditive genetic effects play an important role in embryonal traits and litter performance. The heterosis effects in the first litter are larger than those in the second litter because of heterosis x environment interaction. The results also showed the existence of a highly significant maternal heterosis effect on the fertility traits of sows.     

加强中学物理实验教学

从物理实验教学的重要性出发 ,分析了基础教育中物理实验教学的现状 ,结合教育改革发展的要求以及全面推进素质教育的需要 ,提出了“十五”期间加强中学物理实验教学的几点建议。