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   237篇
  免费   6篇
教育   208篇
科学研究   5篇
各国文化   1篇
体育   14篇
文化理论   3篇
信息传播   12篇
  2023年   3篇
  2022年   5篇
  2021年   6篇
  2020年   9篇
  2019年   18篇
  2018年   19篇
  2017年   11篇
  2016年   16篇
  2015年   15篇
  2014年   9篇
  2013年   43篇
  2012年   8篇
  2011年   3篇
  2010年   5篇
  2009年   12篇
  2008年   5篇
  2007年   7篇
  2006年   3篇
  2005年   1篇
  2004年   2篇
  2003年   5篇
  2001年   5篇
  2000年   1篇
  1999年   2篇
  1998年   2篇
  1997年   1篇
  1994年   3篇
  1993年   4篇
  1990年   2篇
  1989年   2篇
  1987年   1篇
  1985年   2篇
  1983年   2篇
  1980年   1篇
  1967年   5篇
  1966年   3篇
  1965年   2篇
排序方式: 共有243条查询结果,搜索用时 15 毫秒
21.
In this study, passive samplers were used to measure ozone exposure distribution maps over the historical peninsula of Istanbul, Turkey. The study area is partially important due to the presence of cultural and historical buildings and structures distributed all over the peninsula. Unesco's World Heritage list covers four zones located in this historical peninsula in Istanbul. It is necessary to evaluate the pollution distribution in high resolution to construct effective risk management strategies. For this purpose, 50 sampling stations were installed within the study area. Three sampling campaigns within different seasons (summer, winter and fall) showing different ozone distribution characteristics were carried out. Seasonal measurements of ozone exposure values were used to obtain a yearly exposure level, which is an important part of risk characterization. Seasonal ozone exposure maps over the historical peninsula were obtained using Geographical Information Systems (GIS) based interpolation models with high resolution. Risk maps including five regions, based on ozone exposure levels were created. Structures and historical regions located within these risk zones were identified. Based on the defined exposure regions, we found that the Archaeological Park, one of the items on UNESCO's list, is located within the most risky region.  相似文献   
22.
Heat transfer in laminar tube flow with convective boundary conditions and axial heat conduction in the fluid is solved exactly. The effects of the external Biot numbers and the axial conduction in fluid on the temperature distribution and the local Nusselt number are determined for both the upstream and the downstream regions. In order to illustrate the effects of velocity profile, the results for the slug flow and the parabolic velocity profiles are plotted simultaneously. The heat transfer characteristics of the flow are found to be rather sensitive to the Péclét number, the external Biot numbers and the velocity profile in the thermal entrance region.  相似文献   
23.
In June 1979, the Swedish Government appointed a Commission of Inquiry to look into the total training requirements for Swedish personnel in contact with the developing countries. This action was taken against a background of increased Swedish involvement in the development countries, in aid, industry and a large number of voluntary organisations, and in the light of the demands made on Swedes serving in developing countries due to living and working in an alien environment.

The Commission commenced its work in September 1979* and worked closely with a reference group consisting of representatives drawn from the Swedish administration, the business world, the missionary societies and the trade union movement. This article summarises those parts of the Commission's report which are relevant to the theme of this issue.  相似文献   

24.
Teachers across all subject areas engage students, in some way, in the study of otherness—other societies, other cultures, other practices. Often teachers and teacher educators attend to teaching about others with strong desires toward social justice as they seek to make a difference and do good. However, with insufficient tools to interrogate their practices and beliefs to think critically what good actually entails, they can unwittingly pave the road to hell. When good intentions are additionally coupled with the bad science of incomplete knowledge, misinformation, and weak arguments, the road can get treacherous. In this article, we examine the road to hell as it winds through teaching about a specific other, Muslims. We examine how good intentions and bad science about Muslims and Islam have worked to cement stereotypes, promote intolerance, shut down learning, and in doing so thwart education for social justice. Peering closely, we examine commonly voiced student conceptions of Muslims/Islam/The East and highlight the good intentions and bad science behind many of the popular discourses that students advance. We then offer strategies for building a different path, by problematizing good intentions and repairing bad science.  相似文献   
25.
26.
Background: Determining individuals’ views of the nature of science is quite important for researchers since it is both a component of scientific literacy and a fundamental aim of science education.

Purpose: This study aims to develop a NOSvs for assessing prospective teachers’ views of the nature of science and to analyse their psychometric properties.

Sample: A total of 565 prospective teachers participated in the study.

Design and methods: The Kaiser–Meyer–Olkin (KMO) Index and Bartlett’s Sphericity Test were used in this study. Confirmatory factor analysis (CFA) was performed to determine the construct validity of the scale. Cronbach’s Alpha (α) coefficient was calculated for the reliability of the study.

Results: It was consequently found that the KMO was larger than .50. That Bartlett’s Sphericity Test was also statistically significant. The items with item-total correlations smaller than .30 were removed from the scale. Cronbach’s α values calculated for each sub-scale were above .70. In consequence of the first CFA performed, fit indices were found to be below the expected level. For this reason, three more items with the least item-total correlations were removed from the scale. Following the CFA, the final form of the scale included 36 items and five sub-scales.  相似文献   

27.
The aim of this research is to study social–emotional adaptation levels of 5- to 6-year old preschool children in relation to peer relationships. One hundred and forty-four children aged between 5 and 6 joined in this relational survey study. According to the results of the research analysing the relationship between the social–emotional adjustments of 5- to 6-year old children continuing preschool education and the peer relationship variables; the social–emotional adjustment level can meaningfully predict the prosocial behaviour of children towards their peers, aggression levels and exclusion by peers, fear–anxiety towards peers, hyperactivity–distractibility and peer victimisation.  相似文献   
28.
The purpose of this study is to examine the effects of ‘environmental chemistry’ elective course via Technology-Embedded Scientific Inquiry (TESI) model on senior science student teachers’ (SSSTs) conceptions of environmental chemistry concepts/issues, attitudes toward chemistry, and technological pedagogical content knowledge (TPACK) levels. Within one group pre-test–post-test design, the study was conducted with 117 SSSTs (68 females and 49 males—aged 21–23 years) enrolled in an ‘environmental chemistry’ elective course in the spring semester of 2011–2012 academic-years. Instruments for data collection comprised of Environmental Chemistry Conceptual Understanding Questionnaire, TPACK survey, and Chemistry Attitudes and Experiences Questionnaire. Significant increases in the SSSTs’ conceptions of environmental chemistry concepts/issues, attitudes toward chemistry, and TPACK levels are attributed to the SSSTs learning how to use the innovative technologies in the contexts of the ‘environmental chemistry’ elective course and teaching practicum. The study implies that the TESI model may serve a useful purpose in experimental science courses that use the innovative technologies. However, to generalize feasibility of the TESI model, it should be evaluated with SSSTs in diverse learning contexts.  相似文献   
29.
The aim of the study was twofold, namely (i) to determine the prevalence of symptoms of common mental disorders (CMDs) among current and retired professional football and handball players and (ii) to explore the relationship of psychosocial stressors with the outcome measures under study. A total of 1155 players were enrolled in an observational study based on a cross-sectional design. Questionnaires based on validated scales were set up and distributed among current and retired professional football and handball players by the Danish football and handball players’ union. In professional football, the highest prevalence (4 weeks) of symptoms of CMDs was 18% and 19% for anxiety/depression among current and retired players, respectively. In professional handball, the highest prevalence (4 weeks) of symptoms of CMDs was 26% and 16% for anxiety/depression among current and retired players, respectively. For both the current and retired professional football and handball players, a higher number of severe injuries and recent adverse life events (LE) were related to the presence of symptoms of CMD. Players exposed to severe injuries and/or recent adverse LE were 20–50% times more likely to report symptoms of CMD. The results suggest that it is possible to recognize the population of professional athletes that are more likely to develop symptoms of CMD. This could create the opportunity to intervene preventively on athletes that suffered from severe injury and/or recent adverse LE that could lead to a faster and safer recovery and psychological readiness to return to play.  相似文献   
30.
International Review of Education - Am Beispiel von Ridley Scotts Kriegsfilm Black Hawk Down (USA 2001) geht dieser Artikel der Frage nach, ob Film in erster Linie eine vorhergehende Wirklichkeit...  相似文献   
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