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   1633篇
  免费   29篇
  国内免费   2篇
教育   1123篇
科学研究   99篇
各国文化   36篇
体育   194篇
综合类   2篇
文化理论   22篇
信息传播   188篇
  2024年   2篇
  2023年   9篇
  2022年   20篇
  2021年   24篇
  2020年   50篇
  2019年   83篇
  2018年   93篇
  2017年   93篇
  2016年   78篇
  2015年   58篇
  2014年   67篇
  2013年   383篇
  2012年   56篇
  2011年   54篇
  2010年   49篇
  2009年   43篇
  2008年   47篇
  2007年   53篇
  2006年   43篇
  2005年   32篇
  2004年   35篇
  2003年   21篇
  2002年   29篇
  2001年   13篇
  2000年   17篇
  1999年   13篇
  1998年   11篇
  1997年   17篇
  1996年   11篇
  1995年   15篇
  1994年   8篇
  1993年   4篇
  1992年   16篇
  1991年   12篇
  1990年   8篇
  1989年   9篇
  1988年   9篇
  1987年   8篇
  1986年   4篇
  1985年   7篇
  1984年   14篇
  1983年   8篇
  1982年   7篇
  1981年   2篇
  1980年   6篇
  1979年   3篇
  1978年   6篇
  1977年   2篇
  1971年   3篇
  1967年   3篇
排序方式: 共有1664条查询结果,搜索用时 9 毫秒
41.
This paper extends the line of research attempting to link innovation to economic growth by addressing some unexplored questions. Using global patent data, this paper empirically investigates the importance of both the quantity and quality of innovation on economic growth, controlling for past measures of inventive inputs. Moreover, our research examines how innovation inputs can be translated into per capita growth under the various economic structures and stages of economic development. Based on a sample of 58 countries for the period 1980–2003, our empirical results indicate that countries hosting firms with higher quality patents also have higher economic growth. Furthermore, we have some evidence that those countries that increase the level of patenting also witness a concomitant increase in economic growth.  相似文献   
42.
This article reports on a study that investigated the extent to which central ministry policy initiatives result in large‐scale educational change in developing countries. Specifically, Lesotho's policy of inclusive special education was examined as a case study. The study employed a multi‐method approach to yield a large data‐set. Results indicate that policy implementation was limited in both depth (the approaches to inclusive education in some schools) and breadth (the number of schools that have received training in inclusive education). Where implementation was present, perceived teacher knowledge and skill was a strong predictor of success and teachers had positive attitudes toward children with disabilities.  相似文献   
43.
The Classroom Appraisal of Resources and Demands (CARD, elementary version) was used to investigate teacher stress among a sample of elementary teachers (n = 521). The CARD measures teacher stress by examining the subjective experience of both classroom demands and resources provided by the school, and thereby attempts to capture the situationally specific nature of teacher stress. This study attempted to examine whether the CARD can provide reliable and valid information that addresses the call by experts in the field of teacher stress research for measures that consider each teacher's specific occupational circumstances. Specifically, the factor structure of the CARD was supported empirically. Further evidence was offered for the construct and concurrent validity by correlations between CARD scales scores and other measures theoretically relevant to teacher well‐being: general health, teacher efficacy, self‐critical attitudes, and burnout symptoms. © 2009 Wiley Periodicals, Inc.  相似文献   
44.
The internationalisation of higher education in Australia over the past two decades has brought about dramatic changes in Australian universities. Growing numbers of international students have enrolled in Australian universities and the number of students studying offshore has also increased dramatically. While considerable material has been published on the ramifications of the increased numbers of onshore international students studying at Australian universities, there is relatively little published research on the specific challenges facing academics participating in offshore programs. The aim of this project was to examine the current pre-departure cross-cultural training taking place in the business faculties of three Australian universities in order to gain a better understanding of the adequacy of the support given to Australian academics teaching offshore. Twenty staff involved in offshore education were interviewed as part of this project, including academics with considerable offshore teaching experience, senior academic managers and cross-cultural trainers. While these institutions engage in little formal preparation for offshore teaching, a great deal of informal mentoring and briefing is taking place. We consider the implications of the new quality assurance framework for Australian universities, which requires that institutions be able to demonstrate the ways in which they ensure the quality of teaching and learning. Under this new system, universities are bound by the Australian Vice Chancellors' Committee's guidelines for the provision of education to international students. It appears that Australian universities will need to establish more formal mechanisms to ensure that offshore staff are adequately prepared for offshore teaching posts.  相似文献   
45.
Using rich longitudinal data from the Early Childhood Longitudinal Study-Kindergarten cohort (ECLS-K), we find that children who attended preschool enter public schools with higher levels of academic skills than their peers who experienced other types of child care (effect size of .14). This study considers the circumstances under which the preschool advantage persists, that is, the types of classrooms in which students who did not attend preschool “catch up” to their counterparts who did. Specifically, we focus on two dimensions of the early school environment—class size and the level of academic instruction provided. The findings suggest that most of the preschool-related gap in academic skills at school entry is quickly eliminated for children placed in small classrooms and classrooms providing high levels of reading instruction. Conversely, the initial disparities persist for children experiencing large classes and lower levels of reading instruction. These results point out that the longer-term effects of early childhood experience partly depend on classroom experiences during at least the first years of school.  相似文献   
46.
This study was designed to identify characteristics of family functioning that relate to suicide potential in an outpatient adolescent population. Participants included 51 adolescents between the ages of 14 and 18 who were involved in outpatient counselling. The Family Environment Scale and the Suicide Probability Scale were used to assess adolescents’ perception of family social climate and degree of suicide risk respectively. Results revealed significant correlations between suicide risk and family systems characterized by heightened conflict and lower levels of cohesion, independence, and organization. A stepwise multiple regression analysis suggested that organization (related to clarity and structure in family activities and responsibilities) was the strongest predictor of suicide risk. Implications for research and practice are considered.  相似文献   
47.
A new compliance-gaining technique is introduced called the “just-one-more” (JOM) technique that increases compliance rates by including the phrase “I just need one more person to help.” Two studies are reported (N = 160 in each). The first established the effectiveness of the technique as compared to a direct request. The second tested the hypothesis that goal difficulty moderates the technique's effectiveness in a 2 (JOM or direct request) × 2 (requester needs five surveys or 100). Results indicate that the JOM was substantially more effective than a direct request in the 100 surveys condition but not the five.  相似文献   
48.
49.
The researchers engaged in a qualitative analysis (using journaling and focus group methodology) of the communicative behaviors of Hispanic students with White institutional members at a medium-sized, Southwest HSI. Utilizing Co-Cultural Theory and Elaborative Coding analysis, the authors mapped how Hispanic students narrated their co-cultural communication and reasoning (i.e., why they engage in one strategy rather than another). The findings show that, although Hispanic students used almost all co-cultural strategies, their responses were clustered primarily around assimilationist strategies – indicating that they engage in a high degree of self-monitoring and self-censorship when interacting with White institutional members in an HSI. These results suggest that even when Hispanic students constitute a large or majority part of the institution’s population, they still feel the need to engage in behaviors that navigate White norms. The study concludes by examining the findings for co-cultural theorizing as well as providing insights for instructors who wish to engage in inclusive teaching practices.  相似文献   
50.
DBA/2J mice were exposed to a distinctive floor stimulus (CS+) and ethanol (2 g/kg) in a place conditioning paradigm. A different floor stimulus (CS?) was presented with saline. Mice injected just before or 30 min before CS exposure (Groups 0, ?30) showed conditioned place preference, whereas mice injected right after exposure to the CS (Group 5) displayed place aversion (Experiment 1). None of the other groups (?120, ?60, 15, 60) showed place conditioning. Handling and saline injection given just before or after CS exposure were unable to produce place conditioning (Experiment 2). However, there was a positive relationship between ethanol concentration (10% vs. 20%) and test performance, suggesting that peritoneal irritation influences place conditioning (Experiment 3). Overall, these findings support the suggestion that intraperitoneal injection of ethanol produces an initial short-duration aversive effect that is followed by a longer lasting positive motivational effect.  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