全文获取类型
收费全文 | 619篇 |
免费 | 1篇 |
专业分类
教育 | 495篇 |
科学研究 | 32篇 |
各国文化 | 15篇 |
体育 | 5篇 |
信息传播 | 73篇 |
出版年
2022年 | 4篇 |
2021年 | 8篇 |
2020年 | 9篇 |
2019年 | 14篇 |
2018年 | 8篇 |
2017年 | 17篇 |
2016年 | 13篇 |
2015年 | 12篇 |
2014年 | 12篇 |
2013年 | 121篇 |
2012年 | 20篇 |
2011年 | 13篇 |
2010年 | 23篇 |
2009年 | 15篇 |
2008年 | 17篇 |
2007年 | 13篇 |
2006年 | 5篇 |
2005年 | 14篇 |
2004年 | 14篇 |
2003年 | 7篇 |
2002年 | 10篇 |
2001年 | 5篇 |
2000年 | 8篇 |
1999年 | 10篇 |
1998年 | 8篇 |
1997年 | 6篇 |
1996年 | 7篇 |
1995年 | 10篇 |
1994年 | 5篇 |
1993年 | 11篇 |
1992年 | 7篇 |
1991年 | 8篇 |
1990年 | 12篇 |
1989年 | 8篇 |
1988年 | 5篇 |
1987年 | 6篇 |
1984年 | 9篇 |
1983年 | 10篇 |
1982年 | 9篇 |
1981年 | 10篇 |
1980年 | 8篇 |
1979年 | 16篇 |
1978年 | 9篇 |
1976年 | 8篇 |
1975年 | 10篇 |
1974年 | 5篇 |
1972年 | 3篇 |
1971年 | 3篇 |
1968年 | 4篇 |
1866年 | 3篇 |
排序方式: 共有620条查询结果,搜索用时 15 毫秒
81.
Thirteen doctoral students, 7 Caucasians and 6 Hispanics, participated over 3 semesters of practicum/internship in a qualitative research project exploring the experience of becoming supervisors. A follow‐up study with 5 different doctoral students confirmed and refined findings 1½ years later. The research team of 2 female faculty members and 1 male research assistant (the authors) identified 6 themes emerging from individual and group interviews with supervisors‐in‐training regarding the process of becoming a supervisor: (a) learning, (b) supervisee growth, (c) individual uniqueness, (d) reflection, (e) connections, and (f) putting it all together. 相似文献
82.
The concept of ‘cycles’ could be an integrative one for learning about environmental issues within several school subject areas. This concept is the subject of this study with the following question: what are the ideas secondary school students associate with the word ‘cycles’ before instruction? Students formulate their associations on the stimulus word ‘cycles’ in terms of the school subject areas ‘biology’ and ‘environment’ more than in terms of the subject areas geography or other sciences. In their formulations a restricted number of cycle ideas, relevant for the use of cycles as an integrative concept in environmental education, occurs. Possibilities for making use of the concept of cycles in lower and higher secondary environmental education are discussed. 相似文献
83.
Lia Voerman Paulien C. Meijer Fred A.J. Korthagen Robert Jan Simons 《Teaching and Teacher Education》2012
Contributing to the growing amount of literature on learning–enhancing feedback, this article attempts to distinguish between progress feedback and discrepancy feedback. Building on relevant literature drawn from psychology, we propose the use of a ratio of 3:1, positive:negative feedback. We analyzed contiguous 10 min blocks of classroom interactions from 78 teachers. Findings indicate that teachers seldom provide the types of feedback interventions identified as effective in enhancing learning in the course of typical classroom interactions. We examine potential explanations for this, discuss the consequences of this finding on teacher education and professional development, and offer several opportunities for future research. 相似文献
84.
We introduce layered systems such as the citations–citing authors–citing institutes–citing countries one. Diffusion of scientific ideas flows through such layered systems. Our contribution contains three main topics: a fractional counting system for the number of different units in a layer; the fractional number of items of the same type, i.e. in the same layer, over which ideas have been diffused; and the evenness of diffusion over different layers. In this way we construct a coherent system to measure the extent to which scientific ideas are diffused. 相似文献
85.
Fred L. Casmir 《Communication Studies》2013,64(4):237-240
Goethe's writings dealing with rhetorical concepts are representative of major concepts held by many Germans. His distrust of formalized, structured expression of ideas are representative of the distrust many German writers have in relationship to the study of human communication. At the same time, Goethe had to resolve this problem when he was required to offer formal instruction to actors. 相似文献
86.
Paul Cumnings Fred W. McDarrah Keith A. Larson Ching-Chih Chen 《Communication Booknotes Quarterly》2013,44(10):156-157
Audiovisual Market Place 1978: A Multimedia Guide (431 pp.—$21.50, paper) Fine Arts Market Place edited by Paul Cumnings (403 pp.—$19.95, paper) Photography Market Place edited by Fred W. McDarrah (502 pp.—$15.50, paper) Keith A. Larson's Public Relations, the Edward L. Bernaypes and the American Scene: A Bibliography (Westwood, Mass.: F.W. Faxon Co. "Useful Reference Series No. 114"—$25.00) Ching-Chih Chen's Scientific and Technical Information Sources, (Cambridge, Mass.: MIT Press, 1977—$24.95) Book Dealers in North America: A Directory of Dealers in Secondhand and Antiquarian Books in Canada and the United States of America (London: Sheppard Press, updated every four-five years—inquire on price) 相似文献
87.
Alex S. Edelstein John E. Bowes Sheldon M. Harsel Fred L. Casmir Terry D. Peigh Ernest D. Rose 《Communication Booknotes Quarterly》2013,44(10):189-191
A Free and Balanced Flow: Report of the Twentieth Century Fund Task Force on the International Flow of News (Lexington, Mass.: Lexington Books, 1979—$12.50 with a paperback also available) Alex S. Edelstein, John E. Bowes, and Sheldon M. Harsel's Information Societies: Comparing the Japanese and American Experiences (International Communication Center, School of Communications, University of Washington, Seattle, Wa 98195—$10.95, paper) Fred L. Casmir, ed. Intercultural and International Communication (Washington: University Press of America, 1978—$21.50, paper) Terry D. Peigh, et al. The Use of Radio in Social Development (Chicago: Communication Laboratory, Community and Family Study Center of the University of Chicago, 1979—price not given, paper) Ernest D. Rose's World Film & Television Study Resources (Friedrich-Ebert-Stiftung, Godesberger Allee 149, D 5300 Bonn 2, Federal Republic of Germany—price not given) Medios Audiovisuales (Desengano 12, Madrid-13, Spain—650 pesetas per year/11 issues, surface mail) List of International Instruments Concerning Different Aspects of Communication (Paris: Unesco International Commission for the Study of Communication Problems, not dated—apparently free on request, paper) 相似文献
88.
Fred M. Heath 《图书馆管理杂志》2013,53(3):311-324
ABSTRACT This paper provides an overview of strategic initiatives identified by the University of Texas Libraries to address the challenges of operating research libraries in an increasingly digital environment. 相似文献
89.
90.
Five ratios RH, RT, SH, ST and SZ derived from the three-part division of a set of sources in h-core, h-tail and uncited sources are defined. Dynamic changes in the three independent ratios RH, SH and SZ are studied for six selected topics. Data about these topics are obtained from the Web of Science for scientific papers and Derwent Innovations Index for technical patents. It is observed that all RH- and SH-values decrease when the time span widens, while SZ stays the same or increases; and that all RH- and SH-values for papers are larger than the corresponding values for patents. The shifted Lotka distribution is used in a theoretical interpretation of these empirical phenomena. 相似文献