全文获取类型
收费全文 | 909篇 |
免费 | 9篇 |
国内免费 | 1篇 |
专业分类
教育 | 615篇 |
科学研究 | 97篇 |
各国文化 | 10篇 |
体育 | 94篇 |
文化理论 | 15篇 |
信息传播 | 88篇 |
出版年
2023年 | 6篇 |
2022年 | 10篇 |
2021年 | 17篇 |
2020年 | 27篇 |
2019年 | 42篇 |
2018年 | 60篇 |
2017年 | 45篇 |
2016年 | 44篇 |
2015年 | 26篇 |
2014年 | 37篇 |
2013年 | 174篇 |
2012年 | 36篇 |
2011年 | 37篇 |
2010年 | 32篇 |
2009年 | 23篇 |
2008年 | 23篇 |
2007年 | 17篇 |
2006年 | 15篇 |
2005年 | 17篇 |
2004年 | 19篇 |
2003年 | 10篇 |
2002年 | 9篇 |
2001年 | 12篇 |
2000年 | 9篇 |
1999年 | 8篇 |
1998年 | 9篇 |
1997年 | 3篇 |
1996年 | 5篇 |
1995年 | 4篇 |
1994年 | 10篇 |
1993年 | 9篇 |
1992年 | 7篇 |
1991年 | 7篇 |
1990年 | 6篇 |
1989年 | 6篇 |
1987年 | 7篇 |
1985年 | 5篇 |
1984年 | 3篇 |
1983年 | 3篇 |
1982年 | 7篇 |
1979年 | 3篇 |
1978年 | 6篇 |
1977年 | 4篇 |
1976年 | 4篇 |
1974年 | 6篇 |
1955年 | 4篇 |
1917年 | 4篇 |
1877年 | 2篇 |
1860年 | 2篇 |
1830年 | 2篇 |
排序方式: 共有919条查询结果,搜索用时 15 毫秒
771.
Alexander Dzhigo 《Slavic & East European Information Resources》2013,14(4):380-388
In this article, the author analyzes the state of Russian University publishing in 2009, with a focus on the top 20 higher education publishers. By examining national statistics such as the total number of Russian book and pamphlet titles produced in 2009, along with their print runs and other pertinent information, the author concludes that a record number of titles were produced by Russian institutions of higher learning for that year. Nevertheless, print runs declined throughout 2009, indicating a downward production trend in Russia and the world at large. 相似文献
772.
Abstract Much attention has been paid to restructuring in the media industries. Most of this attention has been directed at mergers and acquisitions and the associated increase in industry concentration. What has been largely overlooked is the extent of restructuring that reduces the size of media firms—divestitures. This article examines several cases of major media divestitures and calibrates the impact of these sell-off and spin-off restructuring events on the value of divesting firms. The analysis uses case studies and event study methodology. Given that the overall role of managers of large firms is to maximize the value and stock price, this event methodology directly measures the impact of divestitures on this ultimate goal of maximizing firm value. Case analysis examines the managerial strategies that motivated the divestiture event to explore the complexities of the divestiture as it unfolded. Event analysis results confirm abnormal returns that have the potential to significantly enhance the value of divesting firms. 相似文献
773.
Heidi J. Mortensen Jeffrey L. Alexander Guy M. Nehrenz Cynthia Porter 《Health information and libraries journal》2013,30(1):23-34
Objectives
The aims of this study were to: 1) establish whether infection control professionals (ICPs) who had access to and utilised medical librarian services for evidence‐based medicine (EBM) research perceived this assistance to be useful and 2) to establish whether ICPs who used electronic or hard copy resources for EBM research perceived that those resources had a significant impact on their work.Methods
Convenience sampling was used to collect quantitative data via a questionnaire. Study participants were members of South‐west and Western chapters of the Association for Professionals in Infection Control and Epidemiology. There were 264 questionnaires distributed in this study; 179 participants completed the questionnaire. The response rate for eligible respondents was 59.5% (157).Results
Results indicated 56.7% (51) of the ICPs with librarian access reported requesting assistance from their work facility librarian. In reference to locating infection control information, 77.9% (95), 87.3% (124) and 93.3% (138) of ICPs found textbooks, journals and the Internet ‘very useful’ or ‘useful’, respectively.Conclusion
Study results indicated ICPs who used the assistance of medical librarians and/or hard copy or electronic resources for EBM research perceived such sources to be valuable for obtaining infection control information. 相似文献774.
Otis D. Alexander 《Public Library Quarterly》2013,32(2):138-149
This article is introduced with a brief account of the historical development of free public libraries in the United States. This is necessary to set the stage for sound reasoning for charging for products and services in today's vanishing public library systems. To be sure, these libraries are closing everywhere because of the lack of proper funding for survival, and charging a small fee has been debated continuously for the survival of these cultural, social, and informational centers. This is not only a problem throughout the United States but also globally. There are a few public libraries that are investigating this strategy to further serve library customers. 相似文献
775.
Maria Cseh Alexandre Ardichvili Alexander Gasparishvili Bla Krisztin Zsolt Nemeskeri 《Performance Improvement Quarterly》2004,17(2):5-27
This survey‐based study compared socio‐cultural values and perceptions of organizational culture characteristics held by more than 3,300 managers and employees in twelve business organizations in Hungary, Russia, Georgia, Kazakhstan, and the Kyrgyz Republic. Significant differences were found between the five countries on all socio‐cultural and organizational culture dimensions. The relationship between socio‐cultural values and the organizational culture perceptions was only moderately significant. The paper concludes with implications for professionals seeking to enhance organizations' performance in these countries and suggestions for further research. 相似文献
776.
Using data from the 2006 cohort of the Wabash National Study of Liberal Arts Education, we examined the relationships between three approaches to measuring student learning outcomes (direct-assessment learning gains, self-reported gains, and college grades) and student persistence from the first to second year. Results from a series of logistic regressions indicated that students’ grade-point averages had the largest explanatory power in student persistence, followed by self-reported gains. Direct-assessment learning gains had the least power in explaining persistence. The findings have implications for the national conversation on student success in college. 相似文献
777.
Eva Oberle Alexander Gist Muthutantrige S. Cooray Joana B. R. Pinto 《Psychology in the schools》2020,57(11):1741-1756
The goal of the present study was to investigate the link between elementary school teacher burnout and students' perceptions of teacher social–emotional competence (SEC). A total of 676 Grades 4–7 students in 35 classrooms rated their classroom teachers' SEC. In addition, teachers self-reported their current level of experienced burnout at work (i.e., depersonalization and emotional exhaustion). Multilevel analyses revealed significant classroom-level variability (i.e., 34%) in student-ratings of teacher SEC. Teacher burnout significantly predicted student-rated teacher SEC, over and above significant student-level variables (school self-concept, sense of autonomy in the classroom) and contextual variables (teacher age, school neighborhood income). Specifically, higher levels of teacher burnout were related to receiving lower SEC ratings by students. Teacher burnout explained a significant portion of the classroom-level variability in student-rated teacher SEC. The present study emphasizes the link between teacher burnout and the SEC. Furthermore, given that teacher reports (burnout) were linked to student reports (teacher SEC), these findings also suggest that students notice stress in their classroom teacher. 相似文献
778.
779.
780.