全文获取类型
收费全文 | 34611篇 |
免费 | 535篇 |
国内免费 | 21篇 |
专业分类
教育 | 24938篇 |
科学研究 | 3028篇 |
各国文化 | 300篇 |
体育 | 2770篇 |
综合类 | 18篇 |
文化理论 | 251篇 |
信息传播 | 3862篇 |
出版年
2022年 | 227篇 |
2021年 | 341篇 |
2020年 | 515篇 |
2019年 | 801篇 |
2018年 | 1117篇 |
2017年 | 1104篇 |
2016年 | 978篇 |
2015年 | 587篇 |
2014年 | 881篇 |
2013年 | 6654篇 |
2012年 | 885篇 |
2011年 | 960篇 |
2010年 | 656篇 |
2009年 | 661篇 |
2008年 | 814篇 |
2007年 | 682篇 |
2006年 | 697篇 |
2005年 | 572篇 |
2004年 | 519篇 |
2003年 | 497篇 |
2002年 | 526篇 |
2001年 | 733篇 |
2000年 | 624篇 |
1999年 | 571篇 |
1998年 | 312篇 |
1997年 | 348篇 |
1996年 | 384篇 |
1995年 | 385篇 |
1994年 | 308篇 |
1993年 | 341篇 |
1992年 | 505篇 |
1991年 | 471篇 |
1990年 | 466篇 |
1989年 | 493篇 |
1988年 | 451篇 |
1987年 | 462篇 |
1986年 | 428篇 |
1985年 | 478篇 |
1984年 | 397篇 |
1983年 | 407篇 |
1982年 | 331篇 |
1981年 | 305篇 |
1980年 | 290篇 |
1979年 | 440篇 |
1978年 | 340篇 |
1977年 | 299篇 |
1976年 | 283篇 |
1975年 | 246篇 |
1974年 | 250篇 |
1973年 | 236篇 |
排序方式: 共有10000条查询结果,搜索用时 343 毫秒
171.
172.
This paper explores the information nature of culture. It is represented as an extragenetic and nonorganizational information process and system. Information is regarded as a universal property of matter that is essentially associated with development processes and realizes various forms and ways of storage and circulation at various development stages of global evolution. The socio-cultural principle of exogenous accumulation, transmission, and transformation of information is analyzed in the context of the continuing growth of the information content of material systems on the superhighway of global-universal evolution. It is noted that the information concept of culture evolves into a new area of cultural studies, that is information and cultural studies, advancing our understanding of the nature of culture and cultural genesis. 相似文献
173.
Michael M. Widdersheim 《Library & information science research》2018,40(2):144-152
History and case study are two diachronic research strategies commonly used to study political discourse as it relates to public libraries. Though suitable for some studies, these strategies are inexhaustive. A new, blended research strategy is therefore needed to accomplish what history and case study alone cannot. This hybrid strategy, historical case study, must analyze cases from the distant past to the present, using eclectic data sources, in order to produce both idiographic and nomothetic knowledge. To develop historical case study, the universal components of diachronic analysis are first identified. A general research design for historical case study is then introduced. Finally, historical case study is tested in an actual research project. Findings from this project reveal that historical case study is a successful diachronic research strategy. Historical case study is a new and valuable research design suitable for addressing questions related to change, continuity, development, and evolution. 相似文献
174.
Elizabeth Behm-Morawitz Brandon M. Miller Jennifer Lewallen 《Communication Research Reports》2018,35(3):210-221
Content analyses of prime-time television provide a picture of predominant cultural stereotypes and social trends. The present research is a quantitative content analysis of social class in popular broadcast and cable television in the United States. This research advances scholarship by systematically analyzing character class in addition to more commonly examined variables such as race and gender. A model for the operationalization of class for quantitative content analyses of mediated texts is offered. This proof of concept study demonstrates the viability of studying media representations of class quantitatively to systematically document patterns of portrayal. 相似文献
175.
John A. Velez David R. Ewoldsen Michael D. Hanus Hyunjin Song Jonathan A. Villarreal 《Communication Research Reports》2018,35(5):424-433
This study examines how social comparison information provided by video game leaderboards may influence players’ retrospective judgments of autonomy, competence, and relatedness need fulfillment. Participants played a video game and were randomly assigned to receive no postgame feedback or were shown a leaderboard that placed them in the top or bottom quartile of players. Results indicate downward social comparisons increase enjoyment by increasing competence and relatedness perceptions. However, upward comparisons did not have an opposite effect, nor did either type of social comparison influence players’ autonomy perceptions. Implications for applying Self-Determination Theory to video game enjoyment in the context of social comparison feedback is discussed. 相似文献
176.
Stacy L. Young Manuel D. Pulido Catherine F. Brooks 《Communication Research Reports》2018,35(2):172-177
This study extends instructional communication research on extra-class communication (ECC) by presenting an integrative analysis comparing the explanatory utility of student- and instructor-oriented reasons for student engagement in frequent ECC. Results from 495 college students suggested that student-oriented reasons, specifically the relational and functional student motives, were the only significant, positive predictors of students’ perceptions of frequent ECC engagement. Other student motives (excuse making, participation, sycophancy) and perceptions of instructor approachability did not significantly predict perceived frequency of ECC engagement. 相似文献
177.
Tamara M. Nelson 《Medical reference services quarterly》2018,37(3):312-318
This column describes the development and implementation of a responsive library course designed to train third-year medical students as they begin their clerkships. The course design consisted of a brief face-to-face introduction during third-year orientation and an online course developed in Canvas, an online learning management system. The objective of the course was to not only introduce students to the resources but also to teach them how to effectively use those resources at the point-of-care. Students evaluated the course to assess the overall effectiveness of the instruction. Course development and content, feedback provided by students, as well as suggestions for improvement are discussed. 相似文献
178.
Silas M. Oliveira 《New Review of Academic Librarianship》2018,24(1):35-47
Academic libraries have always strived to be purposively involved in the university's mission attainment efforts. Today, the increase of retention levels is paramount, and, in many cases, it is at the center of higher education institution's strategic plans. For Andrews University, for example, the goal is to reach 80% in the next five years. In the United States, student retention efforts become even more critical due, in part, to declining enrollment numbers set off by soaring higher education costs. Academic librarians are aware of the library's role in the university's overall efforts to increase persistence rates and curtail attrition. Through a literature review, this article highlights how academic libraries are participating in this process. This study focuses on how academic libraries can be leaders in their Institutions by adopting a user-centered philosophy and services that will promote life-long learning, enhance students’ academic experience, and promote engagement, leading to retention. 相似文献
179.
Nullis in verba was chosen as the motto of the Royal Society, as it embodied the culture of transparency and collaboration that were the hallmarks of the Royal Society and of the scientific method it promoted. Communication, using the tools of the day, was essential to this community of scientists as they created and shared new knowledge. Almost three hundred years later, libraries continue to advance principles relating to the importance of collaboration and transparency. This two-part article series, published jointly in International Information and Library Review and Technical Services Quarterly explores notions of transparency and collaboration in research and how these ideas are impacting the world of librarianship – from information creation, organization and access perspectives. 相似文献
180.
This study replicated a previous research project addressing connections between family-of-origin communication and organizational dissent expression. We predicted that family communication patterns (FCPs), specifically conversation and conformity orientations, would predict upward, lateral, and displaced dissent. As in the original study, significant findings emerged for upward dissent and conformity orientation. This replication study indicated family type as an inconsistent predictor of expressed dissent. Contrary to the original study, we found no evidence to support a connection between pluralistic family types and upward dissent. Finally, as an extension of the original study we analyzed effects of FCPs on displaced dissent, finding an inverse association with conversation orientation. Implications for future research are discussed. 相似文献