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   211篇
  免费   2篇
教育   134篇
科学研究   25篇
各国文化   9篇
体育   9篇
文化理论   2篇
信息传播   34篇
  2023年   1篇
  2022年   3篇
  2021年   5篇
  2020年   5篇
  2019年   8篇
  2018年   7篇
  2017年   9篇
  2016年   7篇
  2015年   10篇
  2014年   9篇
  2013年   43篇
  2012年   16篇
  2011年   16篇
  2010年   7篇
  2009年   11篇
  2008年   9篇
  2007年   4篇
  2006年   10篇
  2005年   5篇
  2004年   3篇
  2003年   2篇
  2002年   2篇
  2001年   1篇
  2000年   2篇
  1999年   1篇
  1997年   2篇
  1994年   1篇
  1990年   1篇
  1989年   1篇
  1988年   3篇
  1983年   1篇
  1982年   1篇
  1980年   3篇
  1979年   1篇
  1978年   1篇
  1975年   1篇
  1970年   1篇
排序方式: 共有213条查询结果,搜索用时 114 毫秒
1.
2.
3.
Several studies have found that older women report lower self-rated health than men. However, it is not clear why older women are more likely to report poor self-rated health than older men. Data for this study came from a national cross-sectional survey, Mental Health and Quality of Life of Older Malaysians (MHQoLOM). Included in the survey were 2980 respondents consisting of Malaysians aged 60 years and over, with both men (n = 1428) and women (n = 1552) represented. Results of t-tests showed older men expressed significantly higher levels of self-rated health and self-esteem than women (p < .01). Separate multivariate regression by gender revealed that age, life-threatening problems, and self-esteem were highly significant predictors of self-rated health among older men and women and explained 18.4% of variance in self-rated health for men and 18.2% for women. In the last step we examined the main effects of gender on self-rated health using General Linear Models (GLM) Univariate by adjusting for age, life-threatening problems, and self-esteem. Results showed an insignificant difference in self-rated health between older men and women (F (1,2715) = 2.26, P = 0.13) only after adjusting for self-esteem. It can be concluded that self-esteem affects responses to self-rated health of older men and women.  相似文献   
4.
The objectives of the study were to validate a substantiated Teacher Change Beliefs Model (TCBM) and an instrument to identify critical components of teacher change beliefs (TCB) in Malaysian secondary schools. Five different pilot test approaches were applied to ensure the validity and reliability of the instrument. A total of 936 teachers from 47 high-performing secondary schools completed the survey. Structural equation modelling was applied to test the models. Exploratory factor analysis was employed to identify the underlying factors, whereas confirmatory factor analysis was applied to test the measurement models. The analysis yielded a three-factor TCBM: (1) discrepancy, (2) efficacy and (3) principal support. The results demonstrated a good fit of the model: normed χ2 = 3.156, Tucker-Lewis Fix Index = .987, Comparative Fix Index = .991 and Root Mean Square Error of Approximation = .048. The results also provided evidence for convergent validity, discriminant validity and construct reliability. The TCBM is an empirically tested model derived in a local Malaysian cultural education setting. It provides direction for practitioners in planning and designing training programmes of change management for school principals in the enhancement of TCB among teachers in schools. Besides, Teacher Change Beliefs Scale is a promising and welcome tool for both practitioners and researchers. With only nine items, it is easy to administer and not time-consuming.  相似文献   
5.
This article reports on a study that examined the relationship between the mission statements and performance of Basic Education Schools in Oman. The process of mission statement framing was also investigated. A sample of 161 school mission statements was randomly collected from the Ministry of Education school mission portal database representing 19% of the total population. A sequential mixed method of analysis was chosen. The mission statements being classified with respect to 12 themes of which the most frequently of them appearing Academic Achievement (74.5%) and the least frequent Scientific Research Methods (26.1%).

Results show that Learning Outcomes Excellence significantly correlated with a theme around Reconstructing School Environment (r?=?0.243). Also, Islamic Values and Ethics significantly correlated with Scientific Research Methods (r?=?0.221). It was also appeared that school principals spent great efforts on designing school mission statements that directed schools towards achieving their purpose and improving their performance.  相似文献   
6.
In Iraqi Kurdistan, the educational system is going through significant changes. The educational system influences the students’ attitudes, and one wants the educational system to support the young democracy. In this study, student-centred learning (SCL) is seen as a first step to learning, but also to participation and engagement as a citizen. Three secondary school teachers worked with researchers from Norway and Kurdistan to implement SCL strategies in their daily teaching. Teachers experienced changes in their roles when emphasizing the importance of students’ participation in the learning processes. They could not lecture most of the time; they needed to make more space for the students’ activities and allow them to become more active. They acted more as mentors for their students. The content of the teaching also changed. When the teachers lectured it was about their subject. When the students were expected to be more active, the teachers also had to teach the students how to be more active. The traditional way of furnishing the classrooms in Kurdistan has been rows of benches and desks for the children and a desk by the board for the teacher. This way of furnishing was described as a hindrance when organising for students’ participation. The teachers’ experiences were of main interest in this action research project. Their responses to interview questions were validated by classroom observations. Also, a group of researchers with very different cultural and scientific background collaborated. This was in itself an interesting side effect in this action research study.  相似文献   
7.
The present study was undertaken in 100 subjects, 30 diabetics without complication (group I), 40 diabetics with retinopathy (group II) and 30 non diabetic as normal control group (group III). Blood sugar levels, magnesium, cholesterol and triglyceride were analyzed from plasma and serum. The results were correlated with degree of diabetic control from the levels of glycosylated hemoglobin. Serum magnesium levels in group II were found to be significantly lowered than in group I. There was also significant difference in magnesium levels of group I and group III. We found a significant correlation between the glycosylated hemoglobin and magnesium levels in our study. The results also indicate that the patients with diabetic retinopathy showed significant rise in serum cholesterol and triglyceride. Probably hypomagnesemia and increased serum cholesterol and triglyceride levels are responsible for microvascular changes in diabetes leading to retinopathy. The purpose of this study was thus to gather information about the degree of control of diabetes and magnesium status.  相似文献   
8.
A technique for the modeling of nonlinear control processes using fuzzy modeling approach based on the Takagi-Sugeno fuzzy model with a combination of genetic algorithm and recursive least square is proposed. This paper discusses the identification of the parameters at the antecedent and consequent parts of the fuzzy model. For the antecedent fuzzy parameters, genetic algorithm is used to tune them while at the consequent part, recursive least squares approach is used to identify the system parameters. This approach is applied to a process control rig with three subsystems: a heating element, a heat exchanger and a compartment tank. Experimental results show that the proposed approach provides better modeling when compared with Takagi Sugeno fuzzy modeling technique and the linear modeling approach.  相似文献   
9.
Bugholes are surface imperfections that appear as small pits and craters on concrete surface after the casting process. Bugholes are cosmetic surface imperfections and do not affect the structural integrity of the concrete structure. However, existences of these imperfections increase cost since bugholes require additional surface preparations before painting or finishing the concrete surface. Additionally, these surface imperfections cause secondary problems by decreasing the cover on RC making incretion of salts into the reinforcement bars inside RC. In this paper, authors discuss development of a new device to measure “bughole” rating of concrete surface. The innovative technique used in design enables us to manufacture a compact instrument, which is physically small, lightweight and practical. The paper explains the design principles of the device and the procedure used for optimization of design parameters for the best performance. Last section of the paper gives simulation results to compare the performance of the device to current state of the art methods used for bughole rating in industry.  相似文献   
10.
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