Peer acceptance and rejection during secondary school: Do associations with subsequent educational outcomes vary by socioeconomic background?     

Stephanie Plenty  Chaïm la Roi 《Child development》2024,95(3):929-947

Research shows that peer relationships are associated with students' school adjustment. However, the importance of advantageous and disadvantageous factors for students' educational outcomes may vary by socioeconomic positioning. Drawing on sociometric and register data from a nationally representative sample of Swedish youth (n = 4996, girls 50%; migration background 19%), this study asks if family socioeconomic status moderates associations between youth's peer relationships and their subsequent educational outcomes. Based on preregistered analyses, associations that peer acceptance and rejection at age 14–15 years share with school grades at ~16 years and completion of upper secondary school at ~20 years were tested. The findings showed that positive and adverse peer relationships are most consequential for the educational outcomes of socioeconomically disadvantaged youth.  相似文献   

陶渊明和华兹华斯的“静”中之“动”     

张叉 《四川师范大学学报(社会科学版)》2000,(5)

评论界一般习惯于把“静”同陶渊明和华兹华斯联系在一起 ,似乎“静”是其精神气质的全部 ,这是不全面的。实际上 ,在陶渊明和华兹华斯“静”的面罩之下还掩藏着同等重要的“动”的一面。“动”是他们心理矛盾引发的心理波动 ,在内涵上丰富多彩 ,在消解方式上多种多样 ,在其文学创作中具有积极的作用  相似文献   

University students' behavioral intention to use mobile learning: Evaluating the technology acceptance model     

Sung Youl Park  Min‐Woo Nam  Seung‐Bong Cha 《British journal of educational technology : journal of the Council for Educational Technology》2012,43(4):592-605

As many Korean universities have recommended the implementation of mobile learning (m‐learning) for various reasons, the number of such tertiary learning opportunities has steadily grown. However, little research has investigated the factors affecting university students' adoption and use of m‐learning. A sample of 288 Konkuk university students participated in the research. The process by which students adopt m‐learning was explained using structural equation modeling technique and the Linear Structural Relationship (LISREL) program. The general structural model based on the technology acceptance model included m‐learning self‐efficacy, relevance for students' major (MR), system accessibility, subjective norm (SN), perceived usefulness, perceived ease of use, attitude (AT), and behavioral intention to use m‐learning. The study results confirmed the acceptability of the model to explain students' acceptance of m‐learning. M‐learning AT was the most important construct in explaining the causal process in the model, followed by students' MR and SN.  相似文献   

“一致、适应、二针对”的职业能力培养模式     

姚学文  查道成 《中国科教创新导刊》2012,(32):178-179

根据职业教育特点和学科发展的要求,通过总结课堂教学经验,优化课堂教学知识结构、精简内容、注重实践,对教学内容进行筛选、调整组合,实现课堂教学内容“一致、适应、二针对”的职业能力培养模式,即多学科渗透与专业培养目标相一致;灵活多样以适应实践操作教法的运用;针对职业标准和执业考试;针对服务意识激发兴趣和联系操作.  相似文献   

Responses of endothelial cells to extremely slow flows     

Park JY  White JB  Walker N  Kuo CH  Cha W  Meyerhoff ME  Takayama S 《Biomicrofluidics》2011,5(2):22211

The process of blood vessel formation is accompanied by very minimal flow in the beginning, followed by increased flow rates once the vessel develops sufficiently. Many studies have been performed for endothelial cells at shear stress levels of 0.1-60 dyn∕cm(2); however, little is known about the effect of extremely slow flows (shear stress levels of 10(-4)-10(-2) dyn∕cm(2)) that endothelial cells may experience during early blood vessel formation where flow-sensing by indirect mass transport sensing rather than through mechanoreceptor sensing mechanisms would become more important. Here, we show that extremely low flows enhance proliferation, adherens junction protein localization, and nitric oxide secretion of endothelial cells, but do not induce actin filament reorganization. The responses of endothelial cells in different flow microenvironments need more attention because increasing evidence shows that endothelial cell behaviors at the extremely slow flow regimes cannot be linearly extrapolated from observations at faster flow rates. The devices and methods described here provide a useful platform for such studies.  相似文献   

An Examination of the Host Country Factors Affecting the Export of U.S. Video Media Goods     

Sylvia M. Chan-Olmsted  Jiyoung Cha  Goro Oba 《Journal of Media Economics》2013,26(3):191-216

The United States is by far the leading exporter of video media goods in the world. It is also the biggest investor in theatrical films, spending over $63 million per theatrical production and leading the world in box-office receipts. This article investigates the host country factors that have influenced the export of U.S.-based video media products, including film and television programs. It was found that economic environment, geographical proximity, technological infrastructure, and market size influenced the purchase of motion pictures and video programming from the United States. In addition, countries with better economic environments, implementation of intellectual property rights, political rights, larger market size and cultural differences, and language similarity seemed to import more heavily broadcasting content products from the United States.  相似文献   

图书馆自动化建设与教育科研网   总被引：4，自引：2，他引：2  

查贵庭 《大学图书馆学报》1996,(3):19-21

本文论述了高校馆自动化建设应与ＣＥＲＮＥＴ建设同步进行。探讨了软硬件的选择和南京农业大学图书馆自动化建设的发展规划。  相似文献   

“草叶”:美国文化的产物——《草叶集》中“草叶”之意蕴研究     

张叉 《四川师范大学学报(社会科学版)》2010,37(1)

华尔特·惠特曼<草叶集>中的"草叶"是特定的惠特曼在特定的文化中创造出的特定意象."草叶"具有野草、惠特曼本人、美国人民、美国之自由民主、美国、<草叶集>中之诗篇等六重意蕴,带有鲜明的美国文化色彩,值得认真研究.  相似文献   

提升公信度     

紫姹 《吉林广播电视大学学报》2009,(1):1-1

中国的广播电视大学走过了三十年的发展历程。伴着风风雨雨,电大人洒下了一路辛勤的汗水,也留下了一路创业的歌声。“而立之年”的广播电视大学,肩负着“现代远程教育”,“推进全民学习、终身学习”的重要使命开启了新的航程。  相似文献   

Synchronization criteria for coupled stochastic neural networks with time-varying delays and leakage delay     

M.J. Park  O.M. Kwon  Ju H. Park  S.M. Lee  E.J. Cha 《Journal of The Franklin Institute》2012,349(5):1699-1720

This paper proposes new delay-dependent synchronization criteria for coupled stochastic neural networks with time-varying delays and leakage delay. By constructing a suitable Lyapunov–Krasovskii's functional and utilizing Finsler's lemma, novel synchronization criteria for the networks are established in terms of linear matrix inequalities (LMIs) which can be easily solved by using the LMI toolbox in MATLAB. Three numerical examples are given to illustrate the effectiveness of the proposed methods.  相似文献