刘虹竞走关键技术的运动学特征分析

运用文献资料法、三维定点摄像法、影像解析法等,以刘虹参加2016年全国竞走大奖赛暨奥运选拔赛20km比赛的技术特征为研究对象,对其技术的优缺点进行归纳总结,旨在为其里约奥运会技术改进提供参考。结果表明：总体来看刘虹技术的规范性、实效性特征较好。技术规范性特征具体表现为其腾空时限处于模糊腾空时限内,但是最后冲刺阶段由于提速导致腾空时限远超过临界值。头顶垂直位移稍偏大,摆动腿离地瞬间膝角偏小,垂直膝关节角度同样偏小,且重心移动速度越快,其膝角越小,易形成“跑”的动作表象。着地技术符合裁判员判罚的直腿标准,且垂直支撑阶段“反弓”动作明显。实效性特征表现为左、右步长均有提高,“小步高频”的中国技术风有较大改观;但仍存在左、右不均衡现象。两大腿夹角偏小,说明刘虹向前“送髋”的技术仍需改进。     

顺物玩情平淡邃美--浅析梅尧臣诗论的平淡说

梅尧臣是宋代诗歌史上一位具有开拓意义的诗人,他的平淡说始创宋人以平淡论诗的风气。他用诗歌反映民瘼、讽刺时弊,以淡泊自然反对雕凿艰涩,确立平淡朴素、含义隽永的宋诗诗风。这里对梅氏的平淡说进行了阐述;分析了此说的发展过程:初期清丽平淡、后期涵演深远;探究了其形成的原因:心意老大自平淡、诗法老熟归平淡、平淡与释老的关系,并进一步确定了其平淡说的历史地位。     

Development and Validation of a Multimedia-based Assessment of Scientific Inquiry Abilities

The potential of computer-based assessments for capturing complex learning outcomes has been discussed; however, relatively little is understood about how to leverage such potential for summative and accountability purposes. The aim of this study is to develop and validate a multimedia-based assessment of scientific inquiry abilities (MASIA) to cover a more comprehensive construct of inquiry abilities and target secondary school students in different grades while this potential is leveraged. We implemented five steps derived from the construct modeling approach to design MASIA. During the implementation, multiple sources of evidence were collected in the steps of pilot testing and Rasch modeling to support the validity of MASIA. Particularly, through the participation of 1,066 8th and 11th graders, MASIA showed satisfactory psychometric properties to discriminate students with different levels of inquiry abilities in 101 items in 29 tasks when Rasch models were applied. Additionally, the Wright map indicated that MASIA offered accurate information about students’ inquiry abilities because of the comparability of the distributions of student abilities and item difficulties. The analysis results also suggested that MASIA offered precise measures of inquiry abilities when the components (questioning, experimenting, analyzing, and explaining) were regarded as a coherent construct. Finally, the increased mean difficulty thresholds of item responses along with three performance levels across all sub-abilities supported the alignment between our scoring rubrics and our inquiry framework. Together with other sources of validity in the pilot testing, the results offered evidence to support the validity of MASIA.     

Researching educational policy and change in ‘new times’: using critical discourse analysis

A number of writers have drawn attention to the increasing importance of language in social life in ‘new times’ and Fairclough has referred to ‘discourse driven’ social change. These conditions have led to an increase in the use of various forms of discourse analysis in policy analysis. This paper explores the possibilities of using Critical Discourse Analysis (CDA) in critical policy research in education, drawing on a larger research project which is investigating the equity implications of Education Queensland’s reform agenda. It is argued that, in the context of new times, CDA is of particular value in documenting multiple and competing discourses in policy texts, in highlighting marginalized and hybrid discourses, and in documenting discursive shifts in policy implementation processes. The last part of the paper discusses how such research might be used by policy activists inside and outside education department bureaucracies to further social democratic goals.     

大学教改与大学教材——以中文专业几部教材为例

文章从文字编辑、论述是否全面、编者表述等几个方面具体分析了《文学理论教程（修订二版）》中存在的问题,希望编者再进行修改时,予以考虑。在此基础上,文章又兼谈了其他几部中文专业教材存在的问题,希望大学教师在为学生选教材时要慎之又慎。     

耗散结构理论与文献信息资源共享

对自组织科学和耗散结构理论进行了简要介绍和分析,并阐释了文献信息资源共享体系的耗散结构特性及其对资源共事的启示.     

体育教育专业学生理论课学习存在的问题及建议

采用文献资料分析法等对我国体育专业理论课程设置存在的问题进行了剖析 ,发现课程设置仍然存在着重术课 ,轻理论课 ,理论课面窄 ,形式单一 ,缺乏技能训练等现象 ,并提出提高理论课程的比例与增加科目 ,改革教材体系 ,以适应今后社会发展的需要。     

对当前京剧改革中的若干美学问题的思考

对当前京剧改革过程中的美学问题进行宏观的探讨,有利于我们在改革时有较为明确和科学的指导思想。该文作者结合第三届京剧艺术节展演的剧目及随之召开的京剧艺术理论研讨会,对当前京剧改革中的若干美学问题进行了比较深入的探讨。     

马克思主义在中国的飞跃

马克思主义是指导无产阶级进行社会主义革命的理论武器,它和各国实际和时代特征相结合,不断丰富发展,才能发挥它的指导作用.中国的马克思主义者将马克思主义的一般原理和中国的国情和时代特征相结合,形成了关于中国革命和建设实践的科学理论体系--毛泽东思想,及如何建设有中国特色的社会主义理论--邓小平理论和"三个代表"重要思想,体现出其与时俱进的理论品质,表明了马克思主义在中国获得了飞跃和发展.     

“探究——发现”教学探微

“探究———发现”教学指注重调动学生探究动机、促进知识发现和问题解决的教学。其基本理念包括 :学生是知识意义的建构者 ;学习是一种探究过程 ;学生是具有主动性和创造性的个体 ;教师是学习的指导者和促进者。“探究———发现”教学模式包括创设问题情境、收集信息资料、提出假设、验证假设、反思交流五个基本阶段。它以建构主义为理论基础 ,以多媒体技术为技术支撑。