在线学习平台从众选择行为形成机理的扎根分析     

查先进  张坤  严亚兰 《图书情报工作》2022,(2):90-98

[目的 /意义]探究在线学习平台从众选择行为形成机理,旨在为在线学习平台建设和服务优化提供参考.[方法/过程]从学生视角,利用扎根理论方法对访谈资料进行三级编码分析,理清范畴间的作用机制,构建在线学习平台从众选择行为形成机理模型.[结果/结论]感知收益、用户需求、社会影响和信息偶遇直接影响在线学习平台从众选择行为的形成...  相似文献   

论类比三要素的选择   总被引：2，自引：2，他引：2  

石益祥 《科学学研究》2004,22(5):460-463

汤建民提出了类比的三要素,类比源、类比泉和类比知识单元,并对类比源和类比知识单元的选择作了初步的研究。本文则在汤的研究基础上深入一步,并对选择类比泉的类比进行了系统的研究,尤其是把数学知识作为类比源的类比。在笔者看来,类比源、类比泉和类比知识单元的选择事关所类比对象的认识,决定类比成果的大小和意义。因此,研究如何选择类比三要素关系到类比的成功与否,其意义绝不亚于三个概念本身的提出。  相似文献   

Vulnerable young people and post-16 educational aspirations during Covid-19     

Dimitra Hartas 《British Journal of Special Education》2023,50(3):335-343

This study used a longitudinal, probability sample survey, Understanding Society Covid-19, to examine young people's post-16 educational aspirations at the height of the Covid-19 pandemic, with a particular emphasis on four vulnerable groups (namely, young carers; Black, Asian and Minority Ethnic young people; young people with long-term illness and disability; and people with internalising and externalising behavioural difficulties). The findings from this study showed young carers and young people with health conditions to be less likely to choose A levels, despite reporting roughly equal levels of school engagement and school-related support. The Covid-19 pandemic has laid bare the obstacles often faced by young carers and young people with pre-existing health conditions and behaviour difficulties. It is hoped that the findings will contribute to debates about social care and education and will have implications for public policy and action, especially as public services are under enormous strain and are less likely to reach those who need them most.  相似文献   

Girls in science and technology in secondary and post-secondary education: the case of France     

Biljana Stevanovic 《British Journal of Sociology of Education》2014,35(4):541-558

Based on surveys undertaken by the Institut national de la statistique et des études économiques (France’s National Institute of Statistics and Economic Studies) and by the Direction de l'évaluation de la prospective et de la performance (Directorate of Evaluation, Forecasting and Performance), this article examines the evolution of female student enrollment in scientific streams in secondary and post-secondary education in France over a period of approximately 20 years, from 1985 to 2008. The aim is to study the changes and constants in girls’ choices in science and technology education. The results show that girls’ choices to study science and technology have undergone clear changes during this period. These changes have been positive at the secondary level, but rather more ambiguous at the post-secondary level. Both an appraisal of positive developments and the persistently low representation of women in scientific fields will be offered.  相似文献   

《中国近现代史纲要》课程如何实现“四个选择”教学目标     

尹铁燕 《教育文化论坛》2014,(6):87-90

《中国近现代史纲要》课程教学贯彻＂四个选择＂教学目标,应坚持辩证统一的思想,把＂四个选择＂看成一个相互联系、不可分割的整体。在教学中找准契合点,结合各章节内容及特点,选择合适的教学内容和教学方法。  相似文献   

干旱区农户作物选择及农作物空间格局变化模拟研究——以甘肃省高台县为例     

郭玲霞  张勃  封建民  董莉丽 《资源科学》2014,36(10):2194-2202

通过对甘肃省黑河流域中游下段的高台县60个村578户农业户进行参与式调查,采用决策树分类和空间分析方法,探索干旱区农户作物选择的影响机制,模拟不同水资源供应情景下的作物空间格局变化。结果表明:1影响作物选择的首要因素是作物所需的灌溉次数,其次是预期收入、预期成本以及灌区;2作物种植在空间上存在差异,水资源相对充足的灌区种植结构单一,以收益较高的制种玉米为主,山区及灌溉用水不足的灌区,以低耗水作物和套种模式为主;沿黑河干流向下游套种比例逐渐增多,高耗水作物逐渐减小;3情景模拟结果显示,若水资源供给减少,高耗水作物种植比例将会下降,中、低耗水的作物种植比例将会增加;大田种植减少,套种模式增加。  相似文献   

西南联大的文化选择及对现代大学的启示     

陈明霞 《科教文汇》2013,(19):30-30,36

大学之所以是世界上存在时间最悠久的组织机构,不是规模的大小,而是内在的文化选择。西南联大在艰难时期却创造了中国高校发展史上最辉煌的时刻,对今天我国大学走向世界有很大的启示。本文主要探讨西南联大文化选择的特殊原因及其文化对我国现代大学文化发展的借鉴意义。  相似文献   

浅谈诉讼中实体公正与程序公正的冲突与选择     

吴晓峰 《淮南师范学院学报》2002,4(1):57-59

司法公正包括两个方面的内容：一是程序公正;一是实体公正。理想的公正结果应是两种公正达到一致,但由于人类认识的局限性和程序本身的不完善性,两之间不可避免地会产生冲突。章探讨了程序公正与实体公正产生冲突的原因,提出当两发生了冲突时应树立“程序优先”的观点。  相似文献   

我国大城市选择承办国际体育大赛的策略思考     

杨浩  孟凡强 《河西学院学报》2006,22(5):65-68

我国大城市选择承办国际体育大赛,应坚持如下基本策略:继续坚持增强中西民族认同感和推进城市国际化进程的主导方向;政府的干预要与市场导向相结合,并适时的降低政府干预力度;正确认识奥运会、世界杯的落户规律,适时提出申办请求;承办单项的、纯商业性的赛事,推进体育产业化发展.  相似文献   

多选择串联系统最优冗余问题的精确算法     

孙小玲  阮宁 《上海大学学报(英文版)》2006,10(1):15-19

1IntroductionReliability opti mization plays an i mportant role inthe planning and design of moderntechnological syste-ms[1,2].Although components with high reliability canbe manufactured as the modern technology deve-lops,the requirements for the systems reliability are oftenbeyond the capability of manufacturing.This is spe-cially true for systems where a failure of the systemwill result in catastrophic consequence.On the otherhand,adopting high reliability components in a systemmay be infea…  相似文献