全文获取类型
收费全文 | 22775篇 |
免费 | 364篇 |
国内免费 | 19篇 |
专业分类
教育 | 16127篇 |
科学研究 | 2240篇 |
各国文化 | 285篇 |
体育 | 1827篇 |
综合类 | 20篇 |
文化理论 | 323篇 |
信息传播 | 2336篇 |
出版年
2022年 | 158篇 |
2021年 | 251篇 |
2020年 | 418篇 |
2019年 | 614篇 |
2018年 | 819篇 |
2017年 | 860篇 |
2016年 | 777篇 |
2015年 | 535篇 |
2014年 | 654篇 |
2013年 | 4301篇 |
2012年 | 598篇 |
2011年 | 575篇 |
2010年 | 533篇 |
2009年 | 459篇 |
2008年 | 561篇 |
2007年 | 506篇 |
2006年 | 484篇 |
2005年 | 430篇 |
2004年 | 419篇 |
2003年 | 411篇 |
2002年 | 405篇 |
2001年 | 453篇 |
2000年 | 457篇 |
1999年 | 372篇 |
1998年 | 244篇 |
1997年 | 288篇 |
1996年 | 295篇 |
1995年 | 246篇 |
1994年 | 247篇 |
1993年 | 215篇 |
1992年 | 306篇 |
1991年 | 295篇 |
1990年 | 322篇 |
1989年 | 302篇 |
1988年 | 263篇 |
1987年 | 265篇 |
1986年 | 244篇 |
1985年 | 284篇 |
1984年 | 209篇 |
1983年 | 203篇 |
1982年 | 187篇 |
1981年 | 167篇 |
1980年 | 169篇 |
1979年 | 229篇 |
1978年 | 161篇 |
1977年 | 143篇 |
1976年 | 130篇 |
1975年 | 126篇 |
1974年 | 121篇 |
1973年 | 107篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
121.
Erica England Leo S. Lo Arleene P. Breaux 《Journal of Library & Information Services in Distance Learning》2018,12(1-2):3-12
This case study presents the development and implementation of a personal librarian program for a cohort-based, executive-style higher education administration doctoral program. Librarians and the program director collaborated to create a student-centered program based on individual research needs. The personal librarian program was designed to build a close relationship between the librarian and individual students; to help identify their research knowledge gaps; and to identify resources to meet each individual students' research needs. 相似文献
122.
Flávia Gomes-Franco e Silva Juliana Colussi Paula Melani Rocha 《Journal of Radio & Audio Media》2018,25(1):77-91
This study was conducted in an environment of widespread use of social media and mobile applications in the mass media. The general goal of the study was to analyze the use of WhatsApp in cybermedia, specifically in radio. A case study was proposed to examine the use of WhatsApp on the program Las mañanas de RNE, broadcast by Spanish National Radio. It was found that the public was very accepting of the program’s initiative to solicit WhatsApp voice messages, beginning in November 2015. The case study used audio files of a direct broadcast that included specific times for audience participation. The use of WhatsApp was accepted by the audience, in addition to the use of the conventional telephone, as a tool well-suited to listener participation in radio programming. Finally, the study highlights the importance of interactive, participatory spaces in broadcasts through the creation of synergies with new forms of online participation. 相似文献
123.
Andrew S. Pyle 《Communication Teacher》2018,32(4):209-214
Courses: This unit activity is intended for public relations (PR), crisis communication, or journalism courses.
Objectives: The purpose is to equip future PR professionals with critical thinking skills and experience to manage crises. Students demonstrate mastery in two ways: by crafting clear crisis response messages and materials in a narrow time frame, and by applying a crisis communication heuristic to manage a simulated crisis event. 相似文献
124.
This study explores science communication on Twitter by investigating a sample of tweets referring to academic papers in five different scientific fields. The specifications of science communicators on Twitter, the characteristics of those who initiate actions (by tweeting), the extent and quality of reactions (retweeting), individual and group interactions, and the distribution of tweets across types of engagement in the process of science communication (i.e., dissemination, consultation, and evaluation) were explored. A broad array of actors is involved in the communication of science on Twitter, with individual citizens and individual researchers playing an important role. In principle, this is promising for creating direct interaction, which can be difficult through more traditional mass media. The vast majority of communication activities regarding academic papers is undigested dissemination with almost no sign of debate, contestation, or collective reflection. Another general finding of this study is that bot accounts play a major role in the science communication landscape on Twitter. 相似文献
125.
David Ansong Sarah R. Eisensmith Rainier D. Masa Gina A. Chowa 《Psychology in the schools》2016,53(10):1057-1070
Self‐efficacy is a universal construct, but few validated measures exist for researchers in developing countries to use in assessing youths’ perceptions of their ability to achieve academic success. This study examined the cross‐cultural suitability and psychometric properties of an academic self‐efficacy scale (ASES) adapted for the Ghanaian context. ASES construct validity was assessed with a sample of 4,289 Ghanaian junior high‐school students and exploratory and confirmatory factor analysis. Invariance testing assessed the scale's measurement equivalence by gender and temporal stability of gender equivalence. The ASES is a valid, reliable one‐dimensional scale for assessing young Ghanaians’ perceptions of their academic capabilities, and it works equally well across genders. As adapted, ASES is a valid scale with utility for researchers examining predictors and effects of academic self‐efficacy. The ASES has important implications for decisions regarding investment in programs aimed at improving academic self‐efficacy of youth, both in sub‐Saharan Africa and the increasingly diverse American public schools. 相似文献
126.
127.
S. Donnachie 《Al-Masaq: Islam & the Medieval Mediterranean》2015,27(3):282-284
128.
129.
130.
S. Donnachie 《Al-Masaq: Islam & the Medieval Mediterranean》2015,27(3):280-282