全文获取类型
收费全文 | 5014篇 |
免费 | 70篇 |
国内免费 | 20篇 |
专业分类
教育 | 3389篇 |
科学研究 | 641篇 |
各国文化 | 29篇 |
体育 | 380篇 |
综合类 | 6篇 |
文化理论 | 33篇 |
信息传播 | 626篇 |
出版年
2022年 | 37篇 |
2021年 | 47篇 |
2020年 | 88篇 |
2019年 | 123篇 |
2018年 | 156篇 |
2017年 | 194篇 |
2016年 | 155篇 |
2015年 | 118篇 |
2014年 | 158篇 |
2013年 | 793篇 |
2012年 | 133篇 |
2011年 | 136篇 |
2010年 | 123篇 |
2009年 | 105篇 |
2008年 | 113篇 |
2007年 | 134篇 |
2006年 | 104篇 |
2005年 | 73篇 |
2004年 | 86篇 |
2003年 | 79篇 |
2002年 | 62篇 |
2001年 | 107篇 |
2000年 | 131篇 |
1999年 | 90篇 |
1998年 | 73篇 |
1997年 | 63篇 |
1996年 | 62篇 |
1995年 | 42篇 |
1994年 | 47篇 |
1993年 | 33篇 |
1992年 | 75篇 |
1991年 | 68篇 |
1990年 | 63篇 |
1989年 | 62篇 |
1988年 | 74篇 |
1987年 | 58篇 |
1986年 | 78篇 |
1985年 | 71篇 |
1984年 | 56篇 |
1983年 | 70篇 |
1982年 | 55篇 |
1981年 | 41篇 |
1980年 | 30篇 |
1979年 | 54篇 |
1978年 | 49篇 |
1977年 | 38篇 |
1976年 | 41篇 |
1975年 | 31篇 |
1974年 | 35篇 |
1973年 | 36篇 |
排序方式: 共有5104条查询结果,搜索用时 0 毫秒
881.
Felix N. Ubogu 《International Information and Library Review》2013,45(2-3):249-259
Rhodes University mounted its first digital thesis on the World Wide Web in 1998 and became the first institution in Africa to do so. Since then, the number of available theses and dissertations has steadily increased as more students come to appreciate the importance of submitting digital files or their theses. Also, the university Senate has now made it mandatory for students to submit digital files of their theses and dessertations. In order to make electronic theses and dissertations (ETD) produced by tertiary institutions in Southern Africa readily available, universities in the Southern African region were invited to join in the ETD initiative. This would lead to the building of a digital library of theses and dissertations in the region. A few institutions have responded positively and, based on the adoption of our approach, have speedily gained approval of their governing bodies to embark on ETD projects. In addition, the South East Academic Libraries (SEALS), a library consortium of tertiary institutions in the Eastern Province of South Africa, is considering an ETD programme since this would promote collaboration between research programmes at separate universities/technikons by making research work visible and accessible via a network archive.It is, however, surprising that some institutional leaders appear not to have realized that the digital revolution makes it imperative for institutions to use digital and publishing technologies innovatively in the provision of information as well as in the preservation and dissemination of the institutions' intellectual property.The paper will review existing African theses and dissertation projects, including the Database of African Theses and Dissertations (DATAD) and the African Universities Dissertations Abstracts (AFUDA) projects, it will discuss the status of the Rhodes University project, responses from other institutions in the region and make suggestions for accelerated involvement of tertiary institutions in Africa, especially Southern Africa, in the international network of theses and dissertations. 相似文献
882.
We were shooting on the steps of the Metropolitan Museum one night. It was lit romantically, and Jennifer was wearing an evening gown, looking incredibly stunning. Suddenly there must have been a thousand people screaming her name. It was like witnessing this icon. (Ralph Fiennes in the New York Times, 2002, p. 16, emphasis added) This stamp, honoring a Mexican artist who has transcended “la frontera” and has become and icon to Hispanics, feminists, and art lovers, will be a further reminder of the continuous cultural contributions of Latinos to the United States. (Cecilia Alvear, President of National Association of Hispanic Journalists (NAHJ) on the occasion of the introduction of the Frida Kahlo U.S. postage st& 2001; emphasis added) “Nothing Like the Icon on the Fridge” (column about Salma Hayek’s Frida by Stephanie Zacharek in the New York Times, 2002). 相似文献
883.
Ralph N. Sargent Rene L. Ash John Hales George Fox 《Communication Booknotes Quarterly》2013,44(4):48-49
Ralph N. Sargent's Preserving the Moving Image (Washington: Corporation for Public Broadcaiting and National Endowment for the Arts, 1974---$3.95, paper) Rene L. Ash's The Motion Picture Film Editor (Metuchen, N.J.: Scarecrow Press, 1974---$6.00) John Hales (ed.) Computer Animation (New York: Hastings House, 1974---$20.00) George Fox's Earthquake: The Story of a Movie (New York: Signet Film Series, 1974---$1.25, paper) 相似文献
884.
Mary N. Barton Marion V. Bell Martha L. Hackman Hubert M. Blalock 《Communication Booknotes Quarterly》2013,44(4)
Mary N. Barton and Marion V. Bell's compilation Reference Books: A Brief Guide (Baltimere: Enoch Pratt Free Library, $1.25) Martha L. Hackman's The Practical Bibliographer (Prentice-Hall, $5.95 cloth, $2.95 paper) Hubert M. Blalock An Introduction to Social Research (Prentice-Hall, $5.95 cloth, $2.95 paper) 相似文献
885.
Albert C. Book Norman D. Cary Stuart N. Hyde William O. Johnson Jr. 《Communication Booknotes Quarterly》2013,44(8):4-6
Albert C. Book and Norman D. Cary's The Television Comercial: Creativity and Craftsmanship (Decker, $6.95 paperback) Stuart N. Hyde's Television and Radio Announcing (Houghton-Hifflin, $9.95) William O. Johnson Jr.'s Super Spectator and Electronic Lilliputian (Little-Brown, $6.95) 相似文献
886.
Daniel N. Lapedes James W. Brown Henry Geller Edward M. Dickson Raymond Bowers Martin H. Seiden 《Communication Booknotes Quarterly》2013,44(5):59-63
Robert C. Toll's On with the Show: The First Century of Show Business in America (New York: Oxford University Press, 1976---$19.95) Edwin Fisher, et al., eds. The Art in Cartooning: Seventy-five Years of American Magazine Cartoons (New York : Scribner's, 1975---$14.95) Vaughncille Molden's Telecommunications and Black Americans: A Survey of Ownership, Participation and Control (Center for Development Technology and Program in Technology and Human Affairs, Washington University, St. Louis, Mo. 63130-48.50, paper) Working Papers in Culture and Communication (Department of Anthropology, Temple University, Philadelphia, Pa. 19122-- $2.00, paper) 相似文献
887.
THE INTELSAT GLOBAL SATELLITE SYSTEM edited by Joel Alper and Joseph N. Pelton (American Institute of Aeronautices and Astronautics, Inc., 1633 Broadway, New York 10019---$45.00) SPACE, EARTH, AND COMMUNICATION by Edward Ploman (Westport, Conn.: Quorum Books/-Greenwood Press, 1984---$27.50) 相似文献
888.
Critical thinking skills are required to successfully navigate the overwhelming amount of information sources available today. To address the challenge of developing critical thinking skills, this empirical study examines the effectiveness of exercises in developing thinking skills in college freshmen students. The workbook exercises were designed to develop specific skills related to academics and critical thinking. Two groups of college freshmen participated in the study: one group was given the workbook, the other group was not. At the end of the semester, both groups completed a critical thinking assessment test. A comparison of the test scores confirms the effectiveness of these exercises on improving the critical thinking skills of college freshmen. 相似文献
889.
This investigation reported normative data for experienced (N = 20) and less‐experienced (N = 20) college teachers’ use of humor, self‐disclosure, and narrative activities. Results indicated that both groups of teachers observed in the study incorporated the three behaviors within their 50‐minute lectures. Experienced teachers, however, used humor, self‐disclosure, and narrative activities more frequently than the less‐experienced teachers. Additionally, the experienced teachers used the behaviors to clarify course content. 相似文献
890.
Charlene N. Simmons 《Journal of Media Economics》2013,26(3):201-213
Today, many media corporations are linked together through interlocking boards of directors. Are these interlocks legal, especially in an ever-converging media environment? This study of interlocks finds that over 40% of leading media corporations are interlocked with another leading media company. The majority of these interlocks are legal under current media conditions, but that may change as media formats converge. In addition, the legality of 2 board interlocks is questioned and discussed. 相似文献