基于UDP数据组播的网络教室程序的设计和实现   总被引：1，自引：0，他引：1  

周文芳  范丰龙 《现代图书情报技术》2004,20(2):84-86

介绍了网络通讯中通用的传输控制协议(TCP)和用户数据包协议(UDP)，并且利用C#语言设计了一个基于UDP 数据组播的网络教室程序，展示了在Visual Studio.net开发环境下用C#语言中进行UDP 数据组播发送和接收的一般步骤。  相似文献   

翻转课堂:教学范式的“转型”还是“教学本义”的回归     

杜静  杜志强 《课程.教材.教法》2018,(3):106-111

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趋同抑或求异:英国高等教育质量保障的过去与未来     

沈伟 《高等教育研究》2018,(10):92-99

博洛尼亚进程有力推动了欧洲高等教育一体化,英国积极参与欧洲高等教育区建设,在质量保障方面与其保持高度一致,促进了欧洲高等教育的趋同发展。本文通过历史分析发现,英国高等教育质量保障系统包含科研评估、教学评估和机构审核,兼具质量改进与问责的双重功能,且表现出竞争导向、风险为本的市场问责发展趋势。在脱欧背景下,英格兰新成立的学生办公室也是高等教育国家干预与市场问责的进一步结合,并非英国的"求异"发展。英国乃至欧洲高等教育区的质量保障机制面临着机构多样性与标准相似性的张力,并将受到消费者"众口难调"质量观的挑战。  相似文献   

国家安全之外的《国防教育法》——20世纪中期美国教育改革起源的再审视     

王慧敏 《高等教育研究》2018,(10):100-109

1958年颁布的《国防教育法》对认识二战后美国的教育变革有重要意义。但长期以来研究者都视其为对"苏联卫星事件"的回应,是冷战时期国防政策的重要内容。笔者通过对文献的重新发掘与分析,指出两者之间不存在必然联系,这场教育改革不是"刺激-反应"模式的产物;此外,该法案立法过程中的焦点问题是对联邦政府干预教育权限的再讨论;法案通过后,在宣誓政治忠诚和学术自由问题上也受到广泛批评。国家安全不能概括法案的全部,至于联邦政府如何干预教育,以法案为代表的每一次讨论本身就是答案。  相似文献   

Supportive communication from bystanders of cyberbullying: indirect effects and interactions between source and message characteristics     

Andrew C. High  Rachel Young 《Journal of Applied Communication Research》2018,46(1):28-51

Cyberbullying is an increasingly common experience that produces psychosocial consequences for targets. Interventions encouraging bystanders to support targets of cyberbullying are limited by a lack of focus on what to communicate. This study considers supportive messages that emphasize emotional comfort, attributions of responsibility, and beliefs that people can change as relevant to this context, and it examines how perceptions of messages differ based on whether support providers have or lack experience with cyberbullying. We extend research on the indirect effects model of supportive communication by randomly assigning participants (N?=?304), who self-identify as targets of cyberbullying, to message and source conditions and assessing their perceptions of messages, providers, and outcomes. Impressions of messages mediate their influence on outcomes, and the experiential similarity of support providers moderates these effects. Certain messages, notably those contending that bullies can change, are less effective when delivered by sources who lack experience with bullying.  相似文献   

Sport-based physical activity intervention on body weight in children and adolescents: a meta-analysis     

Kyungun Kim  Gina Ok  Soeun Jeon  Minsoo Kang 《Journal of sports sciences》2017,35(4):369-376

Controversial results reported in past research pertaining to the effectiveness of sport-based physical activity interventions on weight loss. The purpose of this study was to assess the impact of sport-based physical activity intervention on body weight in children and adolescents using a meta-analysis. Academic Search Complete, Education Source, ERIC, Medline, ProQuest, PsycINFO and SportDiscus databases were searched from January 2000 to April 2015. Eighteen studies met following inclusion criteria: sport-based intervention studies; subjects aged 6–18 years; reported body weight; published in peer-reviewed journals written in English. The mean intervention duration was 17.72 weeks. The overall effect size (ES) was 0.52 (Cohen’s d (ES) = 0.52, 95% CI = 0.08, 0.95, P = 0.021), using a random effects model. Moderator analyses results showed that the Q statistic for the sport type (individual sport or team sport, Qbetween (Q_b) = 14.52, df = 1, P = 0.001) and diet control (Qbetween (Q_b) = 8.85, df = 1, P = 0.001), explained the heterogeneity of ESs. Our study showed that there was a moderate overall effect of sport-based physical activity intervention on body weight reduction. The team sport type (ES = 1.05, 95% CI = 0.44, 1.66) and diet control group (ES = 0.84, 95% CI = 0.26, 1.41) appeared to be more effective in reducing body weight.  相似文献   

初中语文高效课堂阅读教学策略分析     

孟新玲 《天津教育》2021,(3):169-171

阅读是初中语文的重要组成部分,占据非常重要的地位。为了让阅读教学更加高效,就需要给学生创设出精彩、生动有趣的初中语文课堂。在此基础上,本文对开展初中语文高效课堂阅读教学给出相关策略,以提升语文教学质量。  相似文献   

翻转课堂模式在体育教学中的运用     

梁小莉 《体育科技文献通报》2020,(1):89-90

翻转课堂模式不仅有利于学生巩固学习知识,还能有效促进学生自主参加学习的积极性,其在体育教学当中获得较好的实施效果。为此,本文采用文献资料法等,以翻转课堂模式对体育教学的促进意义为切入点,对翻转课堂模式在体育教学中的运用展开研究,旨为促进体育教学的健康发展。  相似文献   

HAPA理论背景下大学生锻炼行为与锻炼效果的干预研究          下载免费PDF全文

王银晖 《河北体育学院学报》2016,30(4):53-60

以健康行动过程取向理论为理论背景,对644名在校大学生进行教育干预实验研究.干预措施包括课堂和课下指导、微信等即时通信工具宣传、发放健康行为宣传册等,干预时间为10周.在干预前后共进行了两次问卷调查、三次身体素质测试.结果:①根据HAPA阶段划分,大学生大部分处于健康锻炼行为无意向和意向阶段,仅有14.1％处于行动阶段;②干预对大学生锻炼行为意向水平和体育锻炼等级具有积极影响;③干预对大学生身体素质整体水平有积极影响;④锻炼自我效能作为社会认知变量在健康行为过程取向理论的各个阶段都发挥重要作用.建议通过提高个体锻炼自我效能感和制订合适的锻炼计划增加大学生中参加有规律的体育锻炼人数比例.  相似文献   

Elementary school children’s understanding of science: The implementation of an extracurricular science intervention     

《Contemporary educational psychology》2017

The promotion of students’ achievement and competence in the so-called STEM disciplines is one cornerstone of current educational research and practice. In particular, as early as elementary school, the fostering of an adequate understanding of science is a normative goal of science education. It facilitates students’ science learning and enables them to understand the nature and development of scientific knowledge. Based on the relevance of the promotion of young children’s understanding of science, a corresponding science intervention was recently developed and successfully evaluated in a first study under highly controlled conditions. The goal of the present study was to investigate the effectiveness of this intervention when implemented in practice. One hundred seventeen third- and fourth-grade students and 10 trained course instructors participated in this study. We applied a randomized block design with waitlist control groups and repeated measures. The results revealed that children assigned to the intervention compared with children assigned to the waitlist control group showed better inquiry-related methodological competencies (a better understanding of the scientific inquiry cycle and experimentation strategies) and a higher need for cognition. The findings point to the successful implementation of the intervention and are compared with the results of the first study.  相似文献