首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   22935篇
  免费   402篇
  国内免费   15篇
教育   16397篇
科学研究   2032篇
各国文化   218篇
体育   1903篇
综合类   13篇
文化理论   175篇
信息传播   2614篇
  2022年   171篇
  2021年   262篇
  2020年   382篇
  2019年   603篇
  2018年   833篇
  2017年   801篇
  2016年   705篇
  2015年   425篇
  2014年   662篇
  2013年   4449篇
  2012年   636篇
  2011年   651篇
  2010年   470篇
  2009年   487篇
  2008年   540篇
  2007年   481篇
  2006年   429篇
  2005年   410篇
  2004年   368篇
  2003年   356篇
  2002年   341篇
  2001年   477篇
  2000年   393篇
  1999年   360篇
  1998年   203篇
  1997年   210篇
  1996年   240篇
  1995年   236篇
  1994年   181篇
  1993年   201篇
  1992年   321篇
  1991年   300篇
  1990年   298篇
  1989年   298篇
  1988年   255篇
  1987年   301篇
  1986年   265篇
  1985年   304篇
  1984年   246篇
  1983年   211篇
  1982年   190篇
  1981年   163篇
  1980年   153篇
  1979年   258篇
  1978年   182篇
  1977年   168篇
  1976年   153篇
  1975年   141篇
  1974年   147篇
  1971年   140篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
181.
182.
The current study compared different learners’ static and dynamic mental images of unseen scientific species and processes in relation to their spatial ability. Learners were classified into verbal, visual and schematic. Dynamic images were classified into: appearing/disappearing, linear-movement, and rotation. Two types of scientific entities and their related processes were investigated: astronomical and microscopic. The sample included 79 female students from Grades 9 and 10. For the purpose of the study, three instruments were used. The Mental Images by Guided Imagery instrument was designed to investigate participants' visualization of static and dynamic mental images. The Water-Level Task was adopted to estimate participants' spatial ability. The Learning Styles Inventory was used to classify participants into verbal, visual and schematic learners. The research findings suggest that schematic learners outperformed verbal and visual learners in their spatial ability. They also outperformed them in their vividness of microscopic images; both micro-static and micro-dynamic images; especially in the case of appearing/disappearing images. The differences were not significant in the case of astronomical images. The results also indicate that appearing/disappearing images received the least vividness scores for all three types of learners.  相似文献   
183.
184.
Creating opportunities for inclusive participation by older people in local governance is made more complex by their diversity, which can shape who participates, in what ways, and how effectively. The existing research, however, largely focuses on the impact of socio-demographic characteristics or of individual barriers on participation, without considering how interactions between these may shape pathways to participation among older people. This quantitative study explored the relationships between participation by older people, barriers to participation, and socio-demographic characteristics. The results indicate that socio-demographic diversity impacts on the importance attributed to barriers as well as the strength and direction of their relationships with participation. The findings problematize the dominant approaches to understanding barriers to and patterns in participation. A more sophisticated understanding of inclusive governance in ageing communities needs to consider the iterative and interactional nature of pathways to participation in the context of the complexity of the “older population.”  相似文献   
185.
186.
The purpose of this study was to assess receptivity to peer teaching and peer learning about the safe and appropriate use of medications among communitydwelling older adults. The sample was predominately White (88.5%), female (75.9%) older adults with an average age of 80.2 ( - 9.1) years. On average, the participants perceived their health status as good (2.8 - 0.6). In addition, participants reported using an average number of 4.4 ( - 3.3) prescribed medications. The majority (75%) of participants also reported no problems with their medications. With respect to receptivity to peer teaching and peer learning, the participants, on average, were neutral to peer teaching (6.0 - 2.4), but were somewhat receptive to peer learning (6.7 - 2.2). The number of prescribed medications that a participant reported taking and the age of a participant were identified as significant predictors of receptivity to peer teaching and accounted for 14.5% of the total variance ( F = 5.84, df = 2, p = 0.005). For receptivity to peer learning, the number of prescribed medications also was a significant predictor ( F = 7.50, df = 1, p = 0.008). This study provides the initial step to identifying community-dwelling older adults who would be receptive to peer teaching and peer learning about the safe and appropriate use of medications.  相似文献   
187.

This paper analyzes some of the methodological requisites for a Latino qualitative family research paradigm. The paper explores the philosophical underpinnings, purposes, parameters, and influences of the role of the researcher. Elements of critical race theory, feminist standpoint theory, and Puerto Rican culture and experience are incorporated in the development of the paradigm. Thus, the framework reveals an epistemology that is sensitive to Latino cultural knowledge production and holds an explicit social objective to challenge existing structures, that is, to produce knowledge that presents Latinos as active agents facing constraints or exhibiting resistence behaviors within a social structure. The framework's parameters outline the boundaries all Latino groups share in the United States, such as bicultural identity, Spanish language, and cultural citizenship. The researcher's influence is examined from a Latina (Puerto Rican female) perspective to find some of the continuities and discontinuities that may influence the inherent power dynamic within the researcher informant relationship.  相似文献   
188.
189.
190.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号