全文获取类型
收费全文 | 3116篇 |
免费 | 37篇 |
国内免费 | 1篇 |
专业分类
教育 | 2277篇 |
科学研究 | 205篇 |
各国文化 | 29篇 |
体育 | 358篇 |
综合类 | 2篇 |
文化理论 | 70篇 |
信息传播 | 213篇 |
出版年
2023年 | 28篇 |
2022年 | 60篇 |
2021年 | 88篇 |
2020年 | 127篇 |
2019年 | 238篇 |
2018年 | 261篇 |
2017年 | 246篇 |
2016年 | 199篇 |
2015年 | 147篇 |
2014年 | 125篇 |
2013年 | 684篇 |
2012年 | 106篇 |
2011年 | 89篇 |
2010年 | 74篇 |
2009年 | 54篇 |
2008年 | 51篇 |
2007年 | 56篇 |
2006年 | 50篇 |
2005年 | 42篇 |
2004年 | 35篇 |
2003年 | 37篇 |
2002年 | 29篇 |
2001年 | 19篇 |
2000年 | 17篇 |
1999年 | 19篇 |
1998年 | 15篇 |
1997年 | 14篇 |
1996年 | 18篇 |
1995年 | 15篇 |
1994年 | 13篇 |
1993年 | 15篇 |
1992年 | 13篇 |
1991年 | 18篇 |
1990年 | 15篇 |
1989年 | 6篇 |
1988年 | 9篇 |
1987年 | 11篇 |
1986年 | 8篇 |
1985年 | 8篇 |
1984年 | 7篇 |
1983年 | 5篇 |
1981年 | 6篇 |
1979年 | 8篇 |
1978年 | 7篇 |
1977年 | 8篇 |
1976年 | 7篇 |
1975年 | 4篇 |
1973年 | 5篇 |
1970年 | 5篇 |
1963年 | 4篇 |
排序方式: 共有3154条查询结果,搜索用时 0 毫秒
921.
922.
José Luis Moreno Cegarra Juan Gabriel Cegarra Navarro José Rodrigo Córdoba Pachón 《International Journal of Information Management》2014
This paper examines the relative importance and significance of the four technology enablers introduced by Davis (1989) in the technology acceptance model (TAM) (perceived ease of use, perceived usefulness, attitude towards using and behavioural intention) for use on four different levels of citizen engagement in e-government (null, publish, interact and transact). An extended technology acceptance model (TAM) is developed to test citizen engagement towards online e-government services from a sample of 307 citizens who used the benefits advisor tool within a Spanish City Hall. Although the proposed model follows TAM and explains the intention towards the actual use of e-government by postulating four direct determinants, “A, PU, PEOU and BI” have been considered as parallel processes, meaning that each can have separate influence in different levels of citizen engagement. To achieve this goal, a multinomial logistic regression is developed and tested to confirm the explanatory power of the four technology enablers on the four different levels of e-government. Our findings further suggest that in order to implement e-government, some of the enablers matter more than others to move from one level of citizen engagement to another. The main contribution of the paper is to question the use of existing models which seek to represent the relationship between technology enablers and the adoption of e-government services without considering their impacts on citizens’ engagement. The implications of the findings are discussed and useful insights are provided in relation to policy recommendations geared to create appropriate conditions to build citizens’ engagement intent of use of e-government services. 相似文献
923.
This paper examines the strategies monolingual teachers use to scaffold meaning and encourage and enhance verbal communication with emergent bilingual children in a Swedish mainstream preschool. The study is based on ethnographic fieldwork in a preschool group in which seven of twelve children spoke Swedish as their second, additional language. The basic assumption in this paper is that knowledge is scaffolded in talk between teachers and children. Several scaffolding strategies are identified such as guessing, qualified guessing, interactive scaffolding and co-construction of meaning. The analysis shows that successful languaging assumes a high level of trust between the children and their teachers and that it is essential that the teachers can identify each child’s zone of proximal development. Some educational implications and dilemmas are identified on the basis of the results. 相似文献
924.
Ceneida Fernández Salvador Llinares Wim Van Dooren Dirk De Bock Lieven Verschaffel 《European Journal of Psychology of Education - EJPE》2012,27(3):421-438
This study investigates the development of proportional and additive methods along primary and secondary school. In particular, it simultaneously investigates the use of additive methods in proportional word problems and the use of proportional methods in additive word problems. We have also studied the role played by integer and non-integer relationships between the given numbers and the nature of quantities (discrete or continuous) in the development of these phenomena. A test consisting of additive and proportional missing-value word problems was solved by 755 primary and secondary school students (from fourth to tenth grade). The findings indicate that the use of additive methods in proportional situations increased during primary school and decreased during secondary school, whereas the use of proportional methods in additive situations increased along primary and secondary school. Moreover, the presence or absence of integer ratios strongly affects this behavior, but the nature of quantities only has a small influence on the use of proportional methods. 相似文献
925.
The authors examined whether self‐efficacy mediated the relationship between generational status and 2 academic outcome indicators of 192 college students. A mediation effect was not found with either academic performance or college adjustment. However, high self‐efficacy at the beginning of the year predicted better college adjustment at the end of the 1st year. For college students in general, high self‐efficacy was related to better college adjustment. Recommendations for counselors are discussed. 相似文献
926.
927.
The media industry is undergoing comprehensive change due to the shifting audience and consumption patterns fostered by the diffusion of the Internet. This article describes how these changes shape established practices of video production and redefine the cultural categories of video and broadcasting. Drawing on an empirical case study of the practices within the British Broadcasting Corporation (BBC), the we show the production of video content to be increasingly unbundled and broken down into several smaller processes, which make it possible to manage and recompose in a variety of ways that transcend established institutional divisions and cultural perceptions. At the same time and as a means of accommodating multiplatform content delivery, video distribution is acquiring flexible and mutating formats that further destabilize the perception of video as a self-sufficient cultural form. In this context, video metadata rises to be an important coordinative medium that provides the cognitive resources for identifying and managing video content within and across particular settings and the link through which the operations of media organizations become entangled with the technical landscape of the Internet. 相似文献
928.
Ignacio González López 《Higher Education in Europe》2005,30(3-4):321-334
The primary objective of this paper has been to define a quality university from the user's perspective, based on what students expressed regarding different aspects of the institution. Two methodologically different formats of collecting information have assisted in testing the coherence of their opinions. A qualitative and quantitative approach helped to evaluate the results. 相似文献
929.
930.