Camtasia Studio在微课制作中的应用

随着"微"时代的来临,微课在高校教学中发挥着越来越重要的辅助教学作用,微课的主要载体是微型视频。Camtasia Studio是一套专业的屏幕录像软件,具有强大的视频和音频录制与编辑功能。文章介绍了利用Camtasia Studio软件进行PPT屏幕录制、音频和视频的编辑加工、生成微课视频的过程,为广大教师提供了微课视频制作的解决方案。     

功能性动作筛查(FMS)概述及国内研究概况

功能性动作筛查(Functional Movement Screen)是由美国物理治疗师Gray Cook等设计的一种身体功能评价方法,是一种革新性的动作模式评价系统,它简便易行,可以广泛用于各类人群的基本运动功能的评价。该方法通过测试功能性动作、肌肉控制、神经系统稳定等方面的表现来发现受测者身体灵活性与稳定性方面的不足,进而分析受测者在运动过程中潜在的动作补偿问题,从而保证人体动力链系统功能完善,降低运动损伤的发生几率。功能性动作筛查由深蹲测试、跨栏测试、直线弓箭步测试、肩关节活动度测试、主动直腿抬高测试、躯干稳定俯卧撑测试和旋转稳定测试7个子项目构成。运用文献资料法对我国功能性动作筛查的发展现状进行归纳整理,为广大学者的研究和教练员的应用提供理论参考。     

双评作文题网上阅卷评卷教师评卷水平评价维度的确定

本文基于对北京高考某学科网上阅卷数据分析的基础上,提出从六个维度,对评卷教师的评卷水平进行度量。这六个维度是掌握标准宽严、趋中-发散偏好、有效度、主客观相关、考核成绩和速度。并且为对教师做出一个整体评价,对六个维度的如何进行加合提供一定的建议。     

环保多媒体触摸屏查询系统的设计与开发

本文针对江西省环保局的情况，开发了基于多媒体查询系统的应用系统．详细介绍了系统设计原则、软硬件开发环境及主要系统功能（机构设置、环境管理、楼层分布、环境状况、环境标准、政策法规、专项工作、江西生态），方便了来访者．增加了环保政务公开性，对改变环境保护观念，树立良好的环保形象起到积极的作用。     

基于触摸屏组态技术的立体式仓库管理系统

设计了基于触摸屏组态技术的立体式仓库管理系统,完成了该系统中上位机和下位机的硬件组成及软件设计.上位机利用触摸屏组态技术开发立体式仓库管理平台,下位机采用PLC控制技术控制机械手,实现对立体式仓库中每个仓位存放的货物进行入库和出库的取放操作.本系统实用价值较高,它的应用和推广将产生良好的经济效益和社会效益.     

功能动作筛查中评分者间信度的实证研究

目的：功能动作筛查（FMS）目前已得到广泛认可,但其评分者信度存在争议。为了拓展其应用范围,本文对FMS评分者间的信度进行实证研究。方法：所取样本为高水平运动队男女篮、排球运动员37人,研究对象为专业评分者6人。6名评分者按照 FMS评价细则对被试运动员分别进行 FMS评分,然后将每个评分者评定的各项分值,运用统计方法分析评分者信度。结果：（1）FMS中控体俯撑、肩部灵活性、深蹲、直膝抬腿、体旋5个项目,评分者间评分具有较高的关联性（W值0.723－0.904）和一致性（0.6＜ k≤1）;（2）前后分腿蹲和过栏架步2项,相关性（W值0.380－0.570）与一致性（k ＜0.2）偏弱,但无显著性差异。结论：FMS的总体评分者间信度良好。     

论屏幕媒介环境下的大学生媒介素养教育

目前,大众传媒是我国大学生获取信息的主要途径,如何正确而有效地理解媒体和使用屏幕媒介是当代大学生媒介素养教育的重要课题。文章运用历史分析方法对屏幕媒介为什么成为一个教育问题进行了简要的探讨,并在此基础上分析了我国当代大学生媒介素养教育的现实语境及其存在的问题,进而从媒介素养教育理论和实践两方面提出了有针对性的建议,以更好地提升当代大学生的媒介素养。     

世事人情——论潘琦的散文创作

仫佬族作家潘琦长期以来笔耕不辍,在散文创作领域产生了较大影响。潘琦的散文充满着浓厚的人情味儿,不论是他的游记散文、怀人散文还是随感类的短文等,都直接或间接地流露着强烈深挚的情感。潘琦的散文对世事人情有着较好的体悟,这一方面是潘琦生活睿智和品格豁达的表现,同时也是其厚积薄发文学素养的展露。从这个意义上看,潘琦的散文富于知识性的特征。     

MOOC视频制作平民化方法的探索与评价

对于MOOC平台提供的课程而言,视频既是学习者学习的核心内容,也是教师传授知识的核心环节,而且优质的教学视频能够产生更好的学习效果,这就对MOOC视频的制作提出了更高的要求。当前MOOC视频的制作方式主要有演播室录制式、录屏式、课堂实录式和可汗学院式等类型。由于不同学科适宜采取的视频形式不同,以及教师对视频形式的偏好各异,因此在选择最佳视频制作方案时应综合考虑各种因素。北京大学作为我国MOOC实践的先行者,在实践过程中摸索出一种平民化的MOOC视频制作方法,重点从配置环境个人化和制作流程简单化两个方面进行了设计和实践。以"人群与网络"课程视频的制作为例,探索了一种异步录屏的视频制作方法,这种视频制作方法有利于缓解教师面对镜头的心理压力,提高教师镜头的可用率和后期编辑合成的效果;在时间成本方面更有利于节约制作时间,提高工作效率。     

Meeting 24-h movement guidelines: Prevalence,correlates, and the relationships with overweight and obesity among Chinese children and adolescents

BackgroundMeeting 24-h movement guidelines by children and adolescents has been associated with improved indicators of health, although it has been under-studied in China. Hence, this study aimed to investigate the prevalence of meeting the 24-h movement guidelines, its correlates, and its relationships with body mass index in children and adolescents in China.MethodsCross-sectional data from the 2017 Youth Study in China of 114,072 children and adolescents (mean age = 13.75 years, 49.18% boys) were used. Meeting 24-h movement guidelines (≥60 min of daily moderate-to-vigorous physical activity, ≤2 h of daily leisure screen time, 9–11 h and 8–10 h nightly sleep duration for 6–13-year-olds and 14–17-year-olds, respectively) and height and weight of all participants were assessed. The prevalence of meeting the 24-h movement guidelines and World Health Organization weight status categories were determined. Generalized linear models were used to determine the correlates of meeting the 24-h movement guidelines and the relationships of meeting the 24-h movement guidelines with overweight (OW) and obesity (OB).ResultsOnly 5.12% of Chinese children and adolescents met the 24-h movement guidelines, and 22.44% were classified as OW/OB. Older children and adolescents were less likely to meet the 24-h movement guidelines. Parental education level and family income were positively related to meeting the 24-h movement guidelines. Children and adolescents meeting the 24-h movement guidelines showed lower odds ratios for OW/OB. Compared with participants meeting the 24-h movement guidelines, boys in 4th–6th grades met none of the recommendations (OR = 1.22, 95%CI: 1.06–1.40), met the screen time recommendation only (OR = 1.13, 95%CI: 1.01–1.28), met the nightly sleep duration recommendation only (OR = 1.14, 95%CI: 1.03–1.28), and had significantly higher odds ratios for OW/OB. Similar trends were observed for girls in 4th–6th grades: meeting none of the guidelines (OR = 1.35, 95%CI: 1.14–1.59), meeting sleep duration guidelines only (OR = 1.23, 95%CI: 1.08–1.39), and meeting moderate-to-vigorous physical activity + nightly sleep duration guidelines (OR = 1.24, 95%CI: 1.01–1.54). For girls in 7th–9th grades, the following trend was observed: meeting none of the guidelines (OR = 1.30, 95%CI: 1.01–1.67).ConclusionVery few Chinese children and adolescents met the 24-h movement guidelines. Age (negatively correlated), parental education level, and family income (both positively correlated) were correlates of meeting the 24-h movement guidelines. Children and adolescents meeting the 24-h movement guidelines were more likely to have lower risks for OW/OB, especially in the youngest age group (Grades 4–6); and girls in the middle age group (Grades 7–9) were also more likely to have lower risks for OW/OB. Further research studies should explore additional correlates and determinants for meeting the 24-h movement guidelines. Also, future studies should use longitudinal or interventional designs to determine the relationships between meeting the 24-h movement guidelines and OW/OB and other health indicators, while taking sex and age differences into account.