全文获取类型
收费全文 | 12896篇 |
免费 | 143篇 |
国内免费 | 8篇 |
专业分类
教育 | 9150篇 |
科学研究 | 1302篇 |
各国文化 | 181篇 |
体育 | 823篇 |
综合类 | 6篇 |
文化理论 | 109篇 |
信息传播 | 1476篇 |
出版年
2021年 | 99篇 |
2020年 | 133篇 |
2019年 | 232篇 |
2018年 | 287篇 |
2017年 | 313篇 |
2016年 | 282篇 |
2015年 | 197篇 |
2014年 | 238篇 |
2013年 | 2725篇 |
2012年 | 254篇 |
2011年 | 245篇 |
2010年 | 223篇 |
2009年 | 229篇 |
2008年 | 264篇 |
2007年 | 227篇 |
2006年 | 229篇 |
2005年 | 207篇 |
2004年 | 220篇 |
2003年 | 189篇 |
2002年 | 180篇 |
2001年 | 176篇 |
2000年 | 191篇 |
1999年 | 162篇 |
1998年 | 131篇 |
1997年 | 135篇 |
1996年 | 150篇 |
1995年 | 127篇 |
1994年 | 129篇 |
1993年 | 154篇 |
1992年 | 171篇 |
1991年 | 183篇 |
1990年 | 183篇 |
1989年 | 167篇 |
1988年 | 149篇 |
1987年 | 162篇 |
1986年 | 160篇 |
1985年 | 156篇 |
1984年 | 148篇 |
1983年 | 176篇 |
1982年 | 153篇 |
1981年 | 130篇 |
1980年 | 137篇 |
1979年 | 154篇 |
1978年 | 166篇 |
1977年 | 146篇 |
1976年 | 120篇 |
1975年 | 103篇 |
1974年 | 103篇 |
1973年 | 105篇 |
1972年 | 90篇 |
排序方式: 共有10000条查询结果,搜索用时 406 毫秒
11.
12.
Donald D. Deshler Jean B. Schumaker B. Keith Lenz Janis A. Bulgren Michael F. Hock Jim Knight Barbara J. Ehren 《Learning disabilities research & practice》2001,16(2):96-108
Three factors tied with secondary student success in content‐area reading are demonstrated: (a) validated teacher‐focused and student‐focused interventions, (b) integrated and comprehensive service delivery systems, and (c) well‐designed, data‐based professional developmental programs. Difficult challenges face secondary students with LD and their teachers with regard to these students’ participation and success in required general education classes. Recently, instructional methods and materials have been developed and validated for promoting these students’ success. Some of them focus on how general education teachers plan and teach their content‐area courses; others focus on giving students the strategies they need to respond independently to the demands of their courses. This article describes these instructional methods, a service‐delivery model for implementing these interventions in secondary schools, and professional‐development mechanisms and administrative support that must be in place for the model to be maintained effectively. 相似文献
13.
14.
15.
16.
17.
18.
Chaos theory, informational needs, and natural disasters 总被引:2,自引:0,他引:2
Timothy L. Sellnow Matthew W. Seeger Robert R. Ulmer 《Journal of Applied Communication Research》2002,30(4):269-292
This study applies chaos theory to a system-wide analysis of crisis communication in a natural disaster. Specifically, we analyze crisis communication during the 1997 Red River Valley flood in Minnesota and North Dakota. This flood, among the worst in modern American history, consumed entire metropolitan areas, displacing thousands of people. The conditions and decisions leading to the disaster, and the subsequent reactions are retraced. Communication related to river crest predictions (fractals), the shock at the magnitude of the crisis (cosmology episode), novel forms of reorganizing (self-organization), and agencies that aided in establishing a renewed order (strange attractors) are evaluated. Ultimately, we argue that preexisting sensemaking structures favoring rationalized, traditional views of a complex system led officials to make inappropriately unequivocal predictions and ultimately diminished the effectiveness of the region's crisis communication and planning. 相似文献
19.
The many challenges faced by health sciences libraries of all types and sizes often require innovative solutions. When an innovative solution involves calculated risk taking, the approach is called intrapreneurial. At the University of Miami School of Medicine, an intrapreneurial approach solved the fiscal problems of the biomedical communications unit. The Louis Calder Memorial Library inherited these problems when the Department of the Library and Biomedical Communications was created in the early 1980s. In this paper, two intrapreneurial programs are described, and the benefit and suitability of this management style to information services are demonstrated. 相似文献
20.
PUBLIC AND ELITE ATTITUDES TO ENVIRONMENTAL ISSUES 总被引:1,自引:0,他引:1
This paper puts the environment into perspective. Politiciansand commentators see the environment as yesterday's issue, forgettingthat the core of environmental activists is still double thelevel of just five years ago. International comparisons stretchingfrom Poland to New Zealand are made, examining the public'senvironmental behavior, attitudes and values. Using Great Britainas a case study, detailed comparisons are made between the attitudesof the general public with journalists, the financial community,captains of industry, and Members of Parliament and the latterthen compared with Members of the European Parliament. The publicis demanding action by companies and by governments on environmentalissues and has little faith in either to take corrective action. 相似文献