全文获取类型
| 收费全文 | 3062篇 |
| 免费 | 58篇 |
| 国内免费 | 2篇 |
专业分类
| 教育 | 2339篇 |
| 科学研究 | 156篇 |
| 各国文化 | 35篇 |
| 体育 | 289篇 |
| 文化理论 | 49篇 |
| 信息传播 | 254篇 |
出版年
| 2023年 | 36篇 |
| 2022年 | 54篇 |
| 2021年 | 59篇 |
| 2020年 | 113篇 |
| 2019年 | 189篇 |
| 2018年 | 249篇 |
| 2017年 | 220篇 |
| 2016年 | 199篇 |
| 2015年 | 151篇 |
| 2014年 | 157篇 |
| 2013年 | 646篇 |
| 2012年 | 128篇 |
| 2011年 | 101篇 |
| 2010年 | 95篇 |
| 2009年 | 60篇 |
| 2008年 | 80篇 |
| 2007年 | 68篇 |
| 2006年 | 40篇 |
| 2005年 | 42篇 |
| 2004年 | 51篇 |
| 2003年 | 41篇 |
| 2002年 | 39篇 |
| 2001年 | 25篇 |
| 2000年 | 33篇 |
| 1999年 | 18篇 |
| 1998年 | 21篇 |
| 1997年 | 11篇 |
| 1996年 | 25篇 |
| 1995年 | 17篇 |
| 1994年 | 17篇 |
| 1993年 | 11篇 |
| 1992年 | 9篇 |
| 1991年 | 13篇 |
| 1990年 | 13篇 |
| 1989年 | 12篇 |
| 1988年 | 10篇 |
| 1987年 | 5篇 |
| 1986年 | 8篇 |
| 1985年 | 6篇 |
| 1980年 | 6篇 |
| 1979年 | 3篇 |
| 1978年 | 2篇 |
| 1977年 | 2篇 |
| 1976年 | 6篇 |
| 1975年 | 2篇 |
| 1974年 | 3篇 |
| 1973年 | 2篇 |
| 1972年 | 2篇 |
| 1970年 | 2篇 |
| 1967年 | 3篇 |
排序方式： 共有3122条查询结果，搜索用时 31 毫秒
71.
Rodolfo herrero Ricaño Héctor Barrón Soto 《The American journal of distance education》2013,27(1):68-71
Abstract Since 1947, distance education in Mexico has had an important role for nonconventional populations. Considering that distance education is a heterogeneous and dynamic field, it is important to reflect on the need to improve quality as measured by our own standards. With that perspective in mind, a national meeting was organized to start a self‐diagnosis in which quality and access were the main concerns. Five hundred and twenty specialists from fifty‐one institutions participated in a national interactive synchronous meeting held in four regions. As a result of the meeting, thirty‐five criteria and 230 parameters of quality were established. The main conclusion of the meeting refers to the need for the elaboration of our own indicators for open and distance education. 相似文献
72.
73.
A general model of performance and quality for one-stop e-Government service offerings 总被引：2，自引：2，他引：2
This paper introduces a framework and methodology for establishing indicators and metrics in order to assess the quality and performance of one-stop e-Government service offerings. The set of quality and performance indicators and metrics proposed has been derived in an outcomes assessment approach, based on the perspectives of e-Government service providers and end-users and following a goal-question-metric line of work that departs from some key quality and performance benefits. A methodology that employs the proposed framework to set improvement targets according to alternative scenarios is presented, and a strategy is elaborated for analyzing root causes of potential quality and performance shortcomings and undertaking appropriate countermeasures. Some results of application in a real case study, in the context of an EU-funded R&D project, are also provided. Finally, recommendations are given about usefulness of the proposed approach for e-Government service providers, as well as policy and decision-makers, and directions of future work are discussed in order to enhance the conceptual coverage of this approach, while at the same time not compromising its simplicity of application and generality of purpose. 相似文献
74.
Maria Amata Garito 《British journal of educational technology : journal of the Council for Educational Technology》1991,22(1):41-47
In this paper some of the implications of the exploitation of Artificial Intelligence techniques in the educational field are presented, and the evolution of the changing quality of interaction between student and teacher is illustrated. Such historical changes are presented as a consequence of the introduction of new technologies in education. Particular aspects of Intelligent Educational Systems are presented, pointing out the innovative features of such systems compared with traditional applications. 相似文献
75.
美国图书馆协会的<职业道德规范声明>提出了以图书馆事业为中心的具体原则,其<图书馆权利法案>则明确了图书馆的责任和义务.目前,美国社会和政治环境的变化为图书馆职业带来了越来越多的忧虑和压力."9·11"后出台的<爱国者法案>明显与图书馆职业道德规范中所阐述的重要原则相冲突.因此,美国图书馆协会决心抵制<爱国者法案>对知识、信息自由开放以及行使个人隐私权的限制. 相似文献
76.
79.