全文获取类型
| 收费全文 | 1681篇 |
| 免费 | 28篇 |
专业分类
| 教育 | 1250篇 |
| 科学研究 | 111篇 |
| 各国文化 | 16篇 |
| 体育 | 67篇 |
| 综合类 | 2篇 |
| 文化理论 | 24篇 |
| 信息传播 | 239篇 |
出版年
| 2022年 | 7篇 |
| 2021年 | 20篇 |
| 2020年 | 37篇 |
| 2019年 | 54篇 |
| 2018年 | 48篇 |
| 2017年 | 76篇 |
| 2016年 | 63篇 |
| 2015年 | 43篇 |
| 2014年 | 54篇 |
| 2013年 | 466篇 |
| 2012年 | 42篇 |
| 2011年 | 57篇 |
| 2010年 | 44篇 |
| 2009年 | 40篇 |
| 2008年 | 41篇 |
| 2007年 | 36篇 |
| 2006年 | 33篇 |
| 2005年 | 28篇 |
| 2004年 | 28篇 |
| 2003年 | 25篇 |
| 2002年 | 25篇 |
| 2001年 | 16篇 |
| 2000年 | 25篇 |
| 1999年 | 24篇 |
| 1998年 | 15篇 |
| 1997年 | 13篇 |
| 1996年 | 17篇 |
| 1995年 | 10篇 |
| 1994年 | 15篇 |
| 1993年 | 17篇 |
| 1992年 | 15篇 |
| 1991年 | 12篇 |
| 1990年 | 12篇 |
| 1989年 | 11篇 |
| 1988年 | 10篇 |
| 1987年 | 10篇 |
| 1986年 | 7篇 |
| 1985年 | 15篇 |
| 1983年 | 12篇 |
| 1982年 | 10篇 |
| 1981年 | 7篇 |
| 1980年 | 9篇 |
| 1979年 | 10篇 |
| 1978年 | 11篇 |
| 1977年 | 8篇 |
| 1975年 | 8篇 |
| 1972年 | 6篇 |
| 1968年 | 8篇 |
| 1940年 | 8篇 |
| 1933年 | 8篇 |
排序方式： 共有1709条查询结果，搜索用时 953 毫秒
81.
82.
J.B. Johnson 《Journal of The Franklin Institute》1931,212(6):687-717
83.
Tara E. Murray 《图书馆管理杂志》2015,55(6):494-502
The contributions of volunteers in special libraries have not been well-documented or researched. However, anecdotal evidence shows that volunteers have played a key role in the formation of many special libraries and continue to lend their skills and knowledge to these libraries. This column explores examples from the literature and gives a brief case study on the various ways philatelic libraries use volunteers. The scope of the column includes traditional unpaid volunteers, remote volunteers, crowdsourcing, internships, job training programs, and other voluntary or nontraditional work. Volunteer labor is far from free in terms of cost to the organization, but can provide benefits beyond simply unpaid labor including subject expertise, special skills, and community building. Special libraries looking to begin or expand volunteer programs are advised to study the lessons learned from other types of libraries and organizations with successful volunteer programs. Successfully managing volunteers requires careful planning and coordination just as managing paid staff does. 相似文献
84.
Tara E. Murray 《图书馆管理杂志》2015,55(2):142-152
Librarianship has a long tradition of collaboration and cooperation between libraries, but the literature yields scant evidence of formal partnerships in practice in special libraries. This column explores the barriers to collaboration for special libraries, from organizational culture to legal constraints, as well as the potential benefits and how librarians can overcome the barriers to reap these benefits. Different types of collaboration, including among similar special libraries and between special libraries and other types of libraries and related organizations, as well as informal and formal cooperation, and short-term and long-term partnerships, are discussed. Collaboration and cooperation were part of the impetus to form professional associations. The column provides a brief history of professional library associations and their role in supporting library partnerships in the United States. The conclusion explores how the increasingly digital nature of information and library work affects collaborative library efforts and where the future of these efforts may lie, especially for special libraries. 相似文献
85.
Virginia L. J. Bolshakova Carla C. Johnson Charlene M. Czerniak 《Cultural Studies of Science Education》2011,6(4):961-997
In the United States today, urban schools serve the majority of high-poverty and high minority populations including large
numbers of Hispanic students. While many Hispanic students perform below grade level in middle school science, the science
teaching community as a whole is lacking elements of diversity as teachers struggle to meet the needs of all learners. Researchers
have recognized that science teacher effectiveness, one consequence of self-efficacy among teachers, is associated with future
science achievement and science-related careers of their students. This qualitative study explores how three science teachers’
effectiveness in the classroom impacts students’ science self-efficacy beliefs at one urban middle school. Hispanic students
were the focus of this investigation due to demographics and history of underperformance within this district. Teachers’ perspectives,
as well as outside observer evaluations of instructional strategies and classroom climates were triangulated to explore dynamics
that influence students’ interests and motivation to learn science using a framework to link teachers’ sense of efficacy (focusing
on student outcomes). Findings suggest the impact teacher effectiveness can have on student outcomes, including strengthened
student science self-efficacy and increased science achievement. Building awareness and support in teachers’ sense of efficacy,
as well as developing respectful and supportive relationships between educator/facilitator and pupil during the transition
to middle school may construct permanence and accomplishment for all in science. 相似文献
86.
87.
88.
89.
Tara Gibb 《Studies in Continuing Education》2015,37(3):251-266
This paper draws on ethnographic research to discuss the textual practices and social relations of language assessment. It examines the tensions that language educators and assessment practitioners encounter while making decisions about immigrant professionals’ language competence. It also analyzes the role of other social actors in constituting conceptions of skill. The paper concludes by considering social practice theory as an alternative for exploring conceptions of competence. 相似文献
90.