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   1796篇
  免费   24篇
  国内免费   45篇
教育   1080篇
科学研究   275篇
各国文化   10篇
体育   133篇
综合类   87篇
文化理论   7篇
信息传播   273篇
  2023年   3篇
  2022年   23篇
  2021年   53篇
  2020年   47篇
  2019年   31篇
  2018年   51篇
  2017年   49篇
  2016年   40篇
  2015年   70篇
  2014年   83篇
  2013年   138篇
  2012年   112篇
  2011年   129篇
  2010年   121篇
  2009年   100篇
  2008年   80篇
  2007年   126篇
  2006年   124篇
  2005年   81篇
  2004年   61篇
  2003年   74篇
  2002年   74篇
  2001年   51篇
  2000年   39篇
  1999年   28篇
  1998年   15篇
  1997年   13篇
  1996年   16篇
  1995年   7篇
  1994年   10篇
  1993年   2篇
  1992年   4篇
  1991年   1篇
  1989年   1篇
  1985年   2篇
  1984年   1篇
  1983年   1篇
  1982年   1篇
  1981年   1篇
  1976年   1篇
  1971年   1篇
排序方式: 共有1865条查询结果,搜索用时 62 毫秒
81.
儿童学课程的设置是当前国际教师教育课程的重要走向。由于能够体现教师作为儿童研究者的存在本质、拓展教师教育课程的知识基础和增强教师教育课程对社会的适应性,儿童学课程的嵌入对教师教育课程质量的提升将起到重要的作用。从我国的教育现实出发,借鉴国际大学儿童学专业课程设置的经验,教师教育课程需要以涵育教师的儿童学素养为目标,在课程结构上做出积极的调整,同时以问题领域为核心组织课程模块,践履"情景化的实践探究"的实施策略。  相似文献   
82.
This study explored inclusion practices in general physical education (GPE) from the experiences and perspectives of elementary physical education teachers. The stories of four teachers (two females, two males) between 27 and 57 years of age were gathered using the phenomenological methods of semi-structured interviews, photographs, school documents, and field notes. Bandura’s social-cognitive theory provided a conceptual framework to interpret the findings of this inquiry. Three themes emerged from the thematic analysis: engaging in learning; adapting strategies to meet students’ needs; and moving beyond the educational goals. The findings suggest that inclusion practices (teacher’s behaviours) in GPE were constructed by the dynamic interactions between teachers’ knowledge of disability and motivation to learn about their students (personal factors) and children’s needs and learning goals (environment).  相似文献   
83.
Instructional leadership practices in Singapore   总被引:1,自引:0,他引:1  
This paper presents a review of the literature on principal instructional leadership in Singapore. The authors investigated the dimensions of instructional leadership in the practices of Singapore principals and highlighted the strategies these leaders adopt to enact their instructional roles. Singapore principals were found to play an active role in defining the school vision and promoting the school climate. However, in the areas of curriculum implementation and classroom instruction, the middle management team in the school played more active roles as compared to principals. Five broad conclusions were discussed to provide perspectives on instructional leadership practices in Singapore. This paper also highlighted limitations on current instructional leadership research in Singapore and pointed to areas of future research.  相似文献   
84.
Graduate employability has become an issue in Vietnam since many university students do not satisfy the needs of employers. Universities often receive the strongest criticism on the poor employability assets graduates possess. The ill-preparation of university graduates is considered the result of the out dated and irrelevant curriculum in the higher education system, of the traditional teaching methods and the absent of career guidance in most universities. This article, however, aims to challenge this common criticism that university is to blame for the ill-preparation for employment of its graduates. By conducting a qualitative research inviting the voices of both students and employers on the issue, this article wants to address a wider context and circumstance and also the related issues surrounding the transition from university to work of Vietnamese university graduates. It suggests that not only universities, but also students, employers and other related stakeholders (i.e. student’s family, government and educational policy makers) should acknowledge the changes in society, should be aware of the cultural features at work, and should see their responsibility in the process. They all should make an effort to create mutual understanding, to collaborate and to enhance the development of graduate employability in the Vietnamese context.  相似文献   
85.
Marine diatoms construct their hierarchically ordered, three-dimensional (3D) external structures called frustules through precise biomineralization processes. Recapitulating the remarkable architectures and functions of diatom frustules in artificial materials is a major challenge that has important technological implications for hierarchically ordered composites. Here, we report the construction of highly ordered, mineralized composites based on fabrication of complex self-supporting porous structures—made of genetically engineered amyloid fusion proteins and the natural polysaccharide chitin—and performing in situ multiscale protein-mediated mineralization with diverse inorganic materials, including SiO2, TiO2 and Ga2O3. Subsequently, using sugar cubes as templates, we demonstrate that 3D fabricated porous structures can become colonized by engineered bacteria and can be functionalized with highly photoreactive minerals, thereby enabling co-localization of the photocatalytic units with a bacteria-based hydrogenase reaction for a successful semi-solid artificial photosynthesis system for hydrogen evolution. Our study thus highlights the power of coupling genetically engineered proteins and polysaccharides with biofabrication techniques to generate hierarchically organized mineralized porous structures inspired by nature.  相似文献   
86.
严安 《现代情报》2014,34(1):79-83
百度产品如百度知道、百度百科、百度文库等是基于Web2.0应用的知识共享平台,用户不仅可以搜寻知识,而且可以贡献知识,被认为是重要的社会图书馆系统。本文结合数字鸿沟,探讨用户对百度产品易用性(能力鸿沟)和有用性(产出鸿沟)的感知差异,旨在推动社会图书馆系统的健康发展。首先进行量表设计;然后基于量表搜集数据;再针对数据进行分析,包括测量模型有效性检验、易用性和有用性的频数统计及相关分析;结合数据分析,用图的方式展现了用户在感知差异性上的分布状态,发现能力鸿沟和产出鸿沟之间存在高度相关性。  相似文献   
87.
AC Faradaic reactions have been reported as a mechanism inducing non-ideal phenomena such as flow reversal and cell deformation in electrokinetic microfluidic systems. Prior published work described experiments in parallel electrode arrays below the electrode charging frequency (fc), the frequency for electrical double layer charging at the electrode. However, 2D spatially non-uniform AC electric fields are required for applications such as in plane AC electroosmosis, AC electrothermal pumps, and dielectrophoresis. Many microscale experimental applications utilize AC frequencies around or above fc. In this work, a pH sensitive fluorescein sodium salt dye was used to detect [H+] as an indicator of Faradaic reactions in aqueous solutions within non-uniform AC electric fields. Comparison experiments with (a) parallel (2D uniform fields) electrodes and (b) organic media were employed to deduce the electrode charging mechanism at 5 kHz (1.5fc). Time dependency analysis illustrated that Faradaic reactions exist above the theoretically predicted electrode charging frequency. Spatial analysis showed [H+] varied spatially due to electric field non-uniformities and local pH changed at length scales greater than 50 μm away from the electrode surface. Thus, non-uniform AC fields yielded spatially varied pH gradients as a direct consequence of ion path length differences while uniform fields did not yield pH gradients; the latter is consistent with prior published data. Frequency dependence was examined from 5 kHz to 12 kHz at 5.5 Vpp potential, and voltage dependency was explored from 3.5 to 7.5 Vpp at 5 kHz. Results suggest that Faradaic reactions can still proceed within electrochemical systems in the absence of well-established electrical double layers. This work also illustrates that in microfluidic systems, spatial medium variations must be considered as a function of experiment time, initial medium conditions, electric signal potential, frequency, and spatial position.  相似文献   
88.
通过分析2021年《泰晤士高等教育世界大学排名》中排名前30所英国高校的知识产权管理系统,梳理归纳高校知识产权管理内容,并将其依次嵌入科技成果创造、科技成果扩散、科技成果应用的科技成果转化全链条中。研究结果表明,科技成果创造环节中的知识产权管理活动包括设立管理机构、制定知识产权学习计划、明确权益分配原则、构建价值评估体系、确定开发渠道、获取权利;科技成果扩散环节中的知识产权管理活动包括制定商业化策略、构建商业定价指导框架;科技成果应用环节的知识产权管理活动包括推进后续服务、完善纠纷解决机制。  相似文献   
89.
From a representative survey of 2,000 individuals, we study whether consumption of music through streaming services, like Spotify or YouTube, is a substitute or a complement to physical music consumption modes, such as CDs and live music. Controlling for the taste for music, various socio-demographic characteristics and the usual determinants of music consumption either offline (radio, TV, friends/relatives) or online (online recommendations, social networks), our results show that free music streaming (where the consumer does not possess the music but only has access to it) has no significant effect on CD sales and affects positively live music attendance, but only for national or international artists who are more likely to be available on streaming services.  相似文献   
90.
艾芜《南行记·山峡中》中的人物形象构筑了强盗式的艺术典型。文章通过野猫子们被社会抛出正常生活轨道的悲剧命运而以一种扭曲的兽性方式对抗黑暗现实的无奈选择的表象探视 ,发掘出野猫子们倾向内心所蕴藏的人性美 (善 )的回归。  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