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   1732篇
  免费   36篇
  国内免费   1篇
教育   1242篇
科学研究   161篇
各国文化   39篇
体育   86篇
综合类   4篇
文化理论   14篇
信息传播   223篇
  2023年   16篇
  2022年   14篇
  2021年   43篇
  2020年   57篇
  2019年   88篇
  2018年   115篇
  2017年   122篇
  2016年   107篇
  2015年   81篇
  2014年   103篇
  2013年   356篇
  2012年   78篇
  2011年   91篇
  2010年   63篇
  2009年   68篇
  2008年   47篇
  2007年   48篇
  2006年   54篇
  2005年   18篇
  2004年   31篇
  2003年   31篇
  2002年   25篇
  2001年   14篇
  2000年   14篇
  1999年   14篇
  1998年   9篇
  1997年   6篇
  1996年   4篇
  1995年   7篇
  1994年   4篇
  1993年   1篇
  1992年   5篇
  1991年   6篇
  1990年   3篇
  1989年   2篇
  1988年   1篇
  1987年   3篇
  1986年   1篇
  1985年   4篇
  1984年   4篇
  1983年   2篇
  1982年   1篇
  1980年   1篇
  1979年   1篇
  1978年   1篇
  1977年   3篇
  1975年   1篇
  1974年   1篇
排序方式: 共有1769条查询结果,搜索用时 203 毫秒
91.
Universities, and higher education institutions in general, are ever more influenced by output-driven performance indicators and models that originally stem from the profit-organisational context. As a result, universities are increasingly considering management tools that support them in the (decision) process for attaining their strategic goals. The growth-share matrix is one of these tools that has proven its value in diverse business and competitive contexts in the past few decades. The present study’s contribution is twofold. First, we apply and interpret the growth-share matrix as part of a strategic positioning analysis in a strategic university context. Second, we extend this tool by incorporating social inclusion as a third dimension in the analysis. In recent years, discussions on the rising social disparity among adolescents in higher education have increased and different types of actors have raised the motivation to create more equal opportunities for prospective students who rank among the group of socially disadvantaged adolescents. The findings of an empirical case of the proposed model for a particular Belgian academic programme show that increased social inclusion and higher performance parameters, such as growth in student enrolments and diplomas, can be reached simultaneously.  相似文献   
92.
This study examines the experiences of nonnative English-speaking faculty instructors teaching subject courses in English-medium instruction (EMI) at a Korean university and reveals the perceived roles of the local language in the context. The data consist of questionnaire responses of 91 Korean professors and qualitative interviews with 15 who had answered the questionnaires. Findings showed that the participants perceived the local students’ performances and the amount of interaction between local and international students negatively. Their perceived need for the local, Korean language correlated negatively with the interaction between Korean and international students. In the qualitative interviews, the local language in the EMI context, despite the full-fledged EMI policy being implemented top down, was represented as crucial for social and instructional purposes and for their own time management. These perceived roles were found to be associated with their multiple identities, as instructors and researchers, required and practiced in the context. The findings are discussed to provide information on how to support an EMI policy for internationalization of higher education, especially in non-English-speaking societies.  相似文献   
93.
94.
Particle focusing is an essential step in a wide range of applications such as cell counting and sorting. Recently, viscoelastic particle focusing, which exploits the spatially non-uniform viscoelastic properties of a polymer solution under Poiseuille flow, has attracted much attention because the particles are focused along the channel centerline without any external force. Lateral particle migration in polymer solutions in square channels has been studied due to its practical importance in lab-on-a-chip applications. However, there are still many questions about how the rheological properties of the medium alter the equilibrium particle positions and about the flow rate ranges for particle focusing. In this study, we investigated lateral particle migration in a viscoelastic flow of DNA solution in a square microchannel. The elastic property is relevant due to the long relaxation time of a DNA molecule, even when the DNA concentration is extremely low. Further, the shear viscosity of the solution is essentially constant irrespective of shear rate. Our current results demonstrate that the particles migrate toward the channel centerline and the four corners of a square channel in the dilute DNA solution when the inertia is negligible (elasticity-dominant flow). As the flow rate increases, the multiple equilibrium particle positions are reduced to a single file along the channel centerline, due to the elasto-inertial particle focusing mechanism. The current results support that elasto-inertial particle focusing mechanism is a universal phenomenon in a viscoelastic fluid with constant shear viscosity (Boger fluid). Also, the effective flow rate ranges for three-dimensional particle focusing in the DNA solution were significantly higher and wider than those for the previous synthetic polymer solution case, which facilitates high throughput analysis of particulate systems. In addition, we demonstrated that the DNA solution can be applied to focus a wide range of particle sizes in a single channel and also align red blood cells without any significant deformation.  相似文献   
95.
96.
The purpose of this study was to examine which emergent literacy skills contribute to preschool children's emergent writing (name-writing, letter-writing, and spelling) skills. Emergent reading and writing tasks were administered to 296 preschool children aged 4-5 years. Print knowledge and letter-writing skills made positive contributions to name writing; whereas alphabet knowledge, print knowledge, and name writing made positive contributions to letter writing. Both name-writing and letter-writing skills made significant contributions to the prediction of spelling after controlling for age, parental education, print knowledge, phonological awareness, and letter-name and letter-sound knowledge; however, only letter-writing abilities made a significant unique contribution to the prediction of spelling when both letter-writing and name-writing skills were considered together. Name writing reflects knowledge of some letters rather than a broader knowledge of letters that may be needed to support early spelling. Children's letter-writing skills may be a better indicator of children's emergent literacy and developing spelling skills than are their name-writing skills at the end of the preschool year. Spelling is a developmentally complex skill beginning in preschool and includes letter writing and blending skills, print knowledge, and letter-name and letter-sound knowledge.  相似文献   
97.
The present study investigated relative contributions of initial status and growth rates of emergent literacy skills (i.e., phonological awareness, letter-name knowledge, vocabulary, and rapid serial naming) to initial status and growth rates of conventional literacy skills (i.e., word reading, pseudoword reading, and spelling) for young Korean children. A total of 215 four-year-old children were followed for approximately 15 months. Results showed (1) consistent effects of letter-name knowledge, phonological awareness, and rapid serial naming on conventional literacy skills, and (2) the importance of children’s initial level in the emergent literacy skills for achieving conventional literacy skills. These results are discussed in light of characteristics of the Korean language and writing system.  相似文献   
98.
99.
This article reports on a two-year ethnographic study of learners participating in multi-site, graduate-level education classes. Classes sometimes met face-to-face in the same physical location; at other times part of the class met physically elsewhere. Yet all were linked through the virtual space. Ethnographic analysis of four data types explored how the instructor and students were able to interact through videoconferencing technologies. Most of the interaction occurred between the local and distance learners by way of cultural guides, local students assigned to host a distance learner through Google Video chat. The distance learners were able to receive real-time attention from the instructor and were able to share differing perspectives that contributed to increased satisfaction in the course. These interactions allowed for a dynamic collaborative effort among a diverse set of actors in the field of education.  相似文献   
100.
Two frequently-used discussion protocols were investigated as part of a program to implement teaching cases in undergraduate educational psychology classes designed for preservice teachers. One protocol involved synchronous face-to-face (FTF) discussion of teaching cases, which occurred in class after students had individually completed written case analyses as homework outside of class. The other was asynchronous computer-mediated (CM) discussion taking place outside of class, simultaneous to students’ completion of their written case analyses. Six class offerings of an undergraduate child development course taught by two instructors (three classes by each instructor) were randomly assigned within instructor in a quasi-experimental design to one of the three discussion conditions: FTF, CM, or no discussion of the cases across the semester. Findings indicated that both CM and FTF discussion conditions were associated with positive outcomes relative to the control condition. Both CM and FTF discussion related to higher cognitive–affective engagement with the cases than the control condition; and the CM discussion condition was associated with higher cognitive–affective engagement than FTF discussion. In contrast, FTF discussion, but not CM discussion, was associated with higher-than-control-condition case analysis ability at the end of the semester. Potential explanations for these findings and directions for future research are discussed.  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