首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   114篇
  免费   2篇
教育   68篇
科学研究   27篇
各国文化   6篇
体育   7篇
信息传播   8篇
  2023年   1篇
  2021年   4篇
  2019年   3篇
  2018年   2篇
  2017年   2篇
  2016年   7篇
  2015年   3篇
  2014年   5篇
  2013年   27篇
  2012年   4篇
  2011年   4篇
  2010年   1篇
  2009年   1篇
  2008年   1篇
  2007年   2篇
  2006年   1篇
  2004年   3篇
  2003年   3篇
  1999年   2篇
  1998年   1篇
  1994年   3篇
  1992年   1篇
  1991年   1篇
  1990年   2篇
  1989年   3篇
  1987年   1篇
  1986年   1篇
  1982年   1篇
  1980年   1篇
  1977年   1篇
  1975年   2篇
  1974年   1篇
  1904年   1篇
  1902年   1篇
  1887年   1篇
  1880年   5篇
  1868年   1篇
  1866年   1篇
  1859年   2篇
  1835年   3篇
  1830年   5篇
  1828年   1篇
排序方式: 共有116条查询结果,搜索用时 15 毫秒
51.
52.
53.
54.
55.
Teacher stress can be conceptualized as an imbalance between risk and protective factors. Stress emanates from risk factors at the personal, interpersonal, and organizational levels. When risk factors exceed protective factors, teacher ability to cope with adversity is inhibited, likely resulting in stress and pernicious consequences. In this paper we draw on empirical evidence as well as our own professional efforts at reducing stress among novice teachers to explain the phenomenon and recommend interventions.  相似文献   
56.
57.
58.
ABSTRACT

This paper estimates the relative effectiveness of private and public primary schools in Kenya using data from 4,433 Grade 6 schoolchildren. Using ordinary least squares as a baseline model, we use the proportion of private schools in a district as an instrument in a Heckman two-stage correction framework, as well as propensity score matching models to correct for selection bias. There is a positive private school effect across all models. In the corrected models, we find that private school pupils outperform their public school counterparts by between .24 and .52 standard deviations.  相似文献   
59.
Abstract

In this study, farmers were engaged in a participatory research project and their attitudes evaluated. The purpose was to identify the characteristics of farmers who are favourably predisposed towards meaningful participation in the process. Several cover crops were tested for possible use in the management of watergrass (Commelina diffusa), a noxious weed in banana cultivation. Small, limited-resource farmers were exposed to the essentials of systematic research through a process of experiential learning using participatory techniques. Thirty-six farmers evaluated three cover crops against the current weed control practice of farmers, which served as the control. Farmers and researchers collaborated on the experimental design, treatment allocation, data to be collected and the form of the analysis. Summary data were subjected by the farmers to the Overlap Test to evaluate differences among the treatments. Results indicated that one cover crop, Desmodium heterocarpon, was better than the others in controlling watergrass. These results were confirmed by ANOVA.

A Likert-type scale, used to assess farmers’ attitude, showed that overall, farmers were generally favourable towards the process. Differences in responses to attitudinal statements were based mainly on farmers’ differing education levels. Some level of attrition was experienced in this process, mainly by the older and more experienced farmers. The younger, less experienced farmers completed the trials to a large extent. The results provide useful information for the selection of farmers to be involved in future participatory technology development initiatives.  相似文献   
60.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号