全文获取类型
收费全文 | 1367篇 |
免费 | 22篇 |
专业分类
教育 | 1103篇 |
科学研究 | 57篇 |
各国文化 | 29篇 |
体育 | 50篇 |
文化理论 | 11篇 |
信息传播 | 139篇 |
出版年
2023年 | 6篇 |
2022年 | 5篇 |
2021年 | 14篇 |
2020年 | 27篇 |
2019年 | 32篇 |
2018年 | 29篇 |
2017年 | 44篇 |
2016年 | 39篇 |
2015年 | 33篇 |
2014年 | 32篇 |
2013年 | 328篇 |
2012年 | 34篇 |
2011年 | 44篇 |
2010年 | 38篇 |
2009年 | 36篇 |
2008年 | 37篇 |
2007年 | 31篇 |
2006年 | 32篇 |
2005年 | 47篇 |
2004年 | 34篇 |
2003年 | 24篇 |
2002年 | 41篇 |
2001年 | 19篇 |
2000年 | 33篇 |
1999年 | 14篇 |
1998年 | 11篇 |
1997年 | 11篇 |
1996年 | 25篇 |
1995年 | 13篇 |
1994年 | 22篇 |
1993年 | 27篇 |
1992年 | 16篇 |
1991年 | 24篇 |
1990年 | 14篇 |
1989年 | 11篇 |
1988年 | 15篇 |
1987年 | 9篇 |
1986年 | 13篇 |
1985年 | 11篇 |
1984年 | 8篇 |
1983年 | 14篇 |
1982年 | 6篇 |
1981年 | 9篇 |
1980年 | 19篇 |
1979年 | 11篇 |
1978年 | 11篇 |
1977年 | 6篇 |
1976年 | 6篇 |
1975年 | 4篇 |
1973年 | 5篇 |
排序方式: 共有1389条查询结果,搜索用时 15 毫秒
101.
102.
103.
104.
Patricia Berger 《Information processing & management》1979,15(4):179-193
Due to the financial crisis many public libraries are experiencing, research was formulated to ascertain whether libraries could gain higher budget allocation if they employed public relations activities. Business and industry have successfully done so, openly acknowledging the importance of the public relations function and of its directing specialist. The following hypothesis was formulated: Libraries that engage in public relations activities will show a higher public support as evidence by a higher budget allocation than libraries who do not engage in public relations activities. The method of data collection was a twenty-six item questionnaire sent to Connecticut libraries servicing a population of twenty-five thousand or more. When the questionnaires were returned the answers were translated into a numerical code, giving each library a weighted composite score along with the budget allocation, which was considered in terms of percentages of the total town budget. The correlation coefficient (Pearson r) between public relations score (the weighted composite score) and budget allocation was calculated to be 0.53 with a standard deviation of 0.13; between public relations score and per capita expenditures was 0.75 with a standard deviation of 0.08 thus indicating a significant relationship. Summary of the findings: (1) The hypothesis is supported. (2) The activities that appear to closely correlate to a higher budget allocation are the managerial or administrative aspects of public relations: research, planning and evaluation. (3) The size of the population is not a critical variable influencing public relations activities. (4) The patterns of employment that seem to correlate to higher budget allocation are (a) full/part time specialist on staff, (b) possibly a joint combination of public relations/programming position; and (c) a high involvement of the Directors, Assistant Directors, and Trustees. 相似文献
105.
The Virtual Learning Environment ROODA: An Institutional Project of Long Distance Education 总被引:1,自引:1,他引:0
Patricia Alejandra Behar Sílvia Meirelles Leite 《Journal of Science Education and Technology》2006,15(2):159-167
This article describes ROODA (), a virtual learning environment and one of the official Long Distance Education platforms that has been in use since 2005 at the Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil. It is free software that integrates syncronous and assyncronous interaction/communication tools and publications. In this study, details about institutional demands in relation to long distance education are discussed and ROODA is described with the components that were part of its development such as: modelling and programming, graphic interface and documents for users. Moreover, 19 functions were conceived. Finally, project investigation paths are presented where the platform described is inserted.
相似文献
Patricia Alejandra BeharEmail: |
106.
107.
108.
Arthur R. Southerland Patricia Kramer Lowry 《Community College Journal of Research & Practice》2013,37(2):101-109
Course drop practices among two‐year colleges were surveyed. Examined were deadlines by which courses were dropped, grades received when classes were dropped, who initiates drop procedures, and the extent to which policies related to the above stated practices have been recently changed. One fourth of the institutions reported a drop deadline of between four and six weeks from the end of the term. Almost that many (21.98 percent) used 10 days prior to the final exam as a deadline. More than two‐thirds of the colleges allowed students to drop prior to the deadline with a non‐punitive “W” grade. In the majority of instances, the official drop procedures may be initiated by either the student or the instructor. Community college administrators need to examine course drop policies in light of institutional statements of mission, philosophy, and objectives. Based upon dialogue among the staff, appropriate policy revisions should be developed in order to coordinate the rhetoric and the regulations of the college. 相似文献
109.
Patricia G. Boyer 《Community College Journal of Research & Practice》2013,37(5):409-420
This research project used a large database to examine factors associated with full-time faculty at 2-year institutions who have secured or not secured external funds. Specifically, the research examined demographic characteristics and other variables of faculty at 2-year institutions. 相似文献
110.
José M. Tomás Amparo Oliver Laura Galiana Patricia Sancho Marisol Lila 《Structural equation modeling》2013,20(2):299-313
Several investigators have interpreted method effects associated with negatively worded items in a substantive way. This research extends those studies in different ways: (a) it establishes the presence of methods effects in further populations and particular scales, and (b) it examines the possible relations between a method factor associated with negatively worded items and several covariates. Two samples were assessed: 592 high school students from Valencia (Spain), and 285 batterers from the same city. The self-esteem scales used were Rosenberg's Self-Esteem Scale, the State Self-Esteem Scale, and Self-Esteem 17. Anxiety was also assessed with the State-Trait Anxiety Inventory, and gender and educational level were taken into account. The models were conducted using a multiple indicators and multiple causes (MIMIC) model framework. The evidence in this research pointed out that method effects were present across the different measures of self-esteem. Moreover, a significant and negative effect of anxiety on method effects was present across scales and samples, whereas no effects of age or educational level where found. 相似文献