全文获取类型
| 收费全文 | 6189篇 |
| 免费 | 82篇 |
| 国内免费 | 6篇 |
专业分类
| 教育 | 4422篇 |
| 科学研究 | 543篇 |
| 各国文化 | 132篇 |
| 体育 | 434篇 |
| 综合类 | 4篇 |
| 文化理论 | 78篇 |
| 信息传播 | 664篇 |
出版年
| 2021年 | 49篇 |
| 2020年 | 71篇 |
| 2019年 | 112篇 |
| 2018年 | 203篇 |
| 2017年 | 182篇 |
| 2016年 | 188篇 |
| 2015年 | 120篇 |
| 2014年 | 143篇 |
| 2013年 | 1521篇 |
| 2012年 | 133篇 |
| 2011年 | 140篇 |
| 2010年 | 113篇 |
| 2009年 | 133篇 |
| 2008年 | 130篇 |
| 2007年 | 109篇 |
| 2006年 | 112篇 |
| 2005年 | 94篇 |
| 2004年 | 100篇 |
| 2003年 | 84篇 |
| 2002年 | 87篇 |
| 2001年 | 82篇 |
| 2000年 | 100篇 |
| 1999年 | 70篇 |
| 1998年 | 82篇 |
| 1997年 | 74篇 |
| 1996年 | 78篇 |
| 1995年 | 87篇 |
| 1994年 | 81篇 |
| 1993年 | 86篇 |
| 1992年 | 82篇 |
| 1991年 | 68篇 |
| 1990年 | 74篇 |
| 1989年 | 59篇 |
| 1988年 | 66篇 |
| 1987年 | 68篇 |
| 1986年 | 60篇 |
| 1985年 | 79篇 |
| 1984年 | 66篇 |
| 1983年 | 55篇 |
| 1982年 | 75篇 |
| 1981年 | 51篇 |
| 1980年 | 66篇 |
| 1979年 | 61篇 |
| 1978年 | 44篇 |
| 1977年 | 39篇 |
| 1976年 | 49篇 |
| 1975年 | 44篇 |
| 1974年 | 36篇 |
| 1973年 | 37篇 |
| 1970年 | 29篇 |
排序方式： 共有6277条查询结果，搜索用时 15 毫秒
1.
Gale Macleod Robin Dallas-Childs Colin Brough Martin Toye 《Journal of Research in Special Educational Needs》2021,21(Z1):25-35
In this article we examine the complex relationship between care experience, mental health and exclusion from school and how young people (YP) negotiate these different experiences and identities. The study is a secondary analysis, informed by symbolic interactionist theory, of interviews conducted with 19 care experienced YP in Scotland. Not all of the YP were excluded and not all had a formal mental health diagnosis, as such our study design allows interrogation of the contexts and relationships which not only facilitate but also disrupt pathways to exclusion. It also allows reconsideration of assumptions of vulnerability which are often applied to care experienced YP. Our findings suggest that these YP are moving beyond ‘role playing’ the identities ascribed to them and actively seek out relationships which enable them to construct alternative identities. 相似文献
2.
3.
Although there has been a great deal of research into Collaborative Information Retrieval (CIR) and Collaborative Information Seeking (CIS), the majority has assumed that team members have the same level of unrestricted access to underlying information. However, observations from different domains (e.g. healthcare, business, etc.) have suggested that collaboration sometimes involves people with differing levels of access to underlying information. This type of scenario has been referred to as Multi-Level Collaborative Information Retrieval (MLCIR). To the best of our knowledge, no studies have been conducted to investigate the effect of awareness, an existing CIR/CIS concept, on MLCIR. To address this gap in current knowledge, we conducted two separate user studies using a total of 5 different collaborative search interfaces and 3 information access scenarios. A number of Information Retrieval (IR), CIS and CIR evaluation metrics, as well as questionnaires were used to compare the interfaces. Design interviews were also conducted after evaluations to obtain qualitative feedback from participants. Results suggested that query properties such as time spent on query, query popularity and query effectiveness could allow users to obtain information about team's search performance and implicitly suggest better queries without disclosing sensitive data. Besides, having access to a history of intersecting viewed, relevant and bookmarked documents could provide similar positive effect as query properties. Also, it was found that being able to easily identify different team members and their actions is important for users in MLCIR. Based on our findings, we provide important design recommendations to help develop new CIR and MLCIR interfaces. 相似文献
4.
5.
6.
7.
William G. Wraga 《History of education quarterly》2001,41(4):494-519
8.
9.
10.