全文获取类型
收费全文 | 927篇 |
免费 | 10篇 |
专业分类
教育 | 655篇 |
科学研究 | 37篇 |
各国文化 | 10篇 |
体育 | 126篇 |
综合类 | 2篇 |
文化理论 | 9篇 |
信息传播 | 98篇 |
出版年
2023年 | 2篇 |
2022年 | 3篇 |
2021年 | 16篇 |
2020年 | 7篇 |
2019年 | 37篇 |
2018年 | 40篇 |
2017年 | 30篇 |
2016年 | 42篇 |
2015年 | 22篇 |
2014年 | 28篇 |
2013年 | 263篇 |
2012年 | 24篇 |
2011年 | 23篇 |
2010年 | 13篇 |
2009年 | 25篇 |
2008年 | 31篇 |
2007年 | 17篇 |
2006年 | 24篇 |
2005年 | 28篇 |
2004年 | 18篇 |
2003年 | 20篇 |
2002年 | 16篇 |
2001年 | 10篇 |
2000年 | 18篇 |
1999年 | 11篇 |
1998年 | 12篇 |
1997年 | 11篇 |
1996年 | 11篇 |
1995年 | 15篇 |
1994年 | 10篇 |
1993年 | 8篇 |
1992年 | 12篇 |
1991年 | 8篇 |
1990年 | 12篇 |
1989年 | 9篇 |
1988年 | 9篇 |
1987年 | 2篇 |
1986年 | 4篇 |
1985年 | 3篇 |
1984年 | 6篇 |
1983年 | 3篇 |
1982年 | 2篇 |
1981年 | 6篇 |
1980年 | 3篇 |
1979年 | 6篇 |
1977年 | 2篇 |
1976年 | 2篇 |
1974年 | 2篇 |
1972年 | 2篇 |
1903年 | 2篇 |
排序方式: 共有937条查询结果,搜索用时 15 毫秒
931.
Knowledge spillovers through human mobility across national borders: Evidence from Zhongguancun Science Park in China 总被引:1,自引:0,他引:1
This paper investigates the impact of returnee entrepreneurs and their knowledge spillovers on innovation in high-tech firms in China. Using panel data for 1318 high-tech firms in Beijing Zhongguancun Science Park (ZSP) we find that returnee entrepreneurs create a significant spillover effect that promotes innovation in other local high-tech firms. The extent of this spillover effect is positively moderated by the non-returnee firm's absorptive capacity approximated by the skill level of employees. Multinational enterprises’ R&D activities positively affect the innovation intensity of non-returnee firms only when these local firms possess the sufficient level of absorptive capacity. Our findings have important implications for policy-makers and practitioners. 相似文献
932.
933.
934.
Deborah Willis 《Higher Education》1993,25(2):133-150
The call for students to become more involved in their academic study is not new. However few studies have investigated academic involvement as it is experienced by university students. This paper discusses the results of a study that was designed to explore student perceptions of the nature of academic involvement in learning. In addition students were asked to identify factors in their learning experience that encouraged or discouraged their academic involvement. The results reported here are drawn from interviews with 58 first and second year students attending Victoria University of Wellington.The results demonstrate that students experience involvement in qualitatively and quantitatively different ways that appear to be related to approach to learning. A major focus of the paper is on the interactive role personal and contextual factors play in the development of involvement. It is suggested that such factors combine to produce a particular learning climate that directly affects involvement in learning. The paper concludes with a discussion of the implications of this research for university policy, teaching practice and course design and makes some suggestions for further research. 相似文献
935.
A framework is proposed from which to evaluate contemporary neurological models of cognitive processing. Selected models are classified as unidimensional, bidimensional, or tridimensional according to the neuraxes that they address. The empirical research that supports each model is considered in terms of anatomical, physiological, and behavioral levels of analysis. Applied implications of the models for learning and individual differences are identified as they relate to psychoeducational assessment and intervention. Finally, differences and similarities among the selected models are synthesized. 相似文献
936.
Information about gender differences in interests is necessary to disentangle the effects of discrimination and choice when gender inequalities occur, such as in employment. This article assesses gender differences in interests within the popular social news and entertainment site Reddit. A method to detect terms that are statistically significantly used more by males or females in 181 million comments in 100 subreddits shows that gender affects both the selection of subreddits and activities within most of them. The method avoids the hidden gender biases of topic modelling for this task. Although the method reveals statistically significant gender differences in interests for topics that are extensively discussed on Reddit, it cannot give definitive causes, and imitation and sharing within the site mean that additional checking is needed to verify the results. Nevertheless, with care, Reddit can serve as a useful source of insights into gender differences in interests. 相似文献
937.