首页 | 官方网站   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   15675篇
  免费   222篇
  国内免费   120篇
文化教育   16017篇
  2021年   109篇
  2020年   220篇
  2019年   315篇
  2018年   446篇
  2017年   390篇
  2016年   401篇
  2015年   257篇
  2014年   329篇
  2013年   2716篇
  2012年   307篇
  2011年   344篇
  2010年   249篇
  2009年   253篇
  2008年   260篇
  2007年   292篇
  2006年   280篇
  2005年   273篇
  2004年   265篇
  2003年   249篇
  2002年   243篇
  2001年   262篇
  2000年   275篇
  1999年   280篇
  1998年   146篇
  1997年   155篇
  1996年   185篇
  1995年   171篇
  1994年   134篇
  1993年   145篇
  1992年   220篇
  1991年   225篇
  1990年   232篇
  1989年   261篇
  1988年   211篇
  1987年   228篇
  1986年   222篇
  1985年   252篇
  1984年   225篇
  1983年   214篇
  1982年   180篇
  1981年   174篇
  1980年   162篇
  1979年   246篇
  1978年   172篇
  1977年   169篇
  1976年   132篇
  1975年   125篇
  1974年   140篇
  1973年   121篇
  1971年   113篇
排序方式: 共有10000条查询结果,搜索用时 406 毫秒
111.
This study explored how developmentally appropriate practices influenced the affordances of a multitouch surface in an early childhood classroom. Children, ages 4 to 5 years old, were videotaped while engaged in a storymaking application on a multitouch table. As a result of the study, we found that some challenges with the functionality undermined children's autonomous control. The researchers observed numerous instances of issues with control of the medium, including height of the table, sensitivity to multiple types of touch, and limited instructions and prompts. Implications for future research and practice are discussed.  相似文献   
112.
The authors assessed the influences of several risk factors—self‐esteem, history of unwanted sexual contact (USC), depression, and sorority membership—on eating‐related and weight‐related attitudes and behaviors. Findings provide support for the roles of self‐esteem, depression, and USC on restricting attitudes. According to the authors' model, these independent variables predicted restricting attitudes that then predicted restricting behaviors. Implications for preventive interventions and the study's limitations are discussed.  相似文献   
113.
114.
115.
ABSTRACT

This paper considers the examination results of TVEI and non TVEI pupils in the database established at the University of Newcastle in 1985‐87. The pupils took national exams in the summer of 1987, when they were about 16 years old. Their average grades (Exam Means) and their accumulated grades (Exam Totals) were considered separately.

The Exam Mean and Exam Total scores were generally worse for TVEI than non TVEI pupils, even when pupils with the same ability test scores and aspirational scores were compared. However, it is possible that non TVEI factors caused the discrepancy in results and it is these factors which are the subjects of this paper.

The paper considers firstly whether the differences are an artefact of regression analysis. Secondly, the data are considered using various multilevel models. Both analyses suggest that there was no TVEI effect on the Exam Mean score and a negative TVEI effect on the Exam Total. Various explanations for these findings, concerning internal school allocational and curriculum policies, are considered and discussed.  相似文献   
116.
L'usage des moyens audiovisuels exige l'intégration dans la classe de moyens puissants, coûteux, impliquant des techniques variées. Il importe de réviser complètement nos idées en matiére d'éducation. Jusqu'ici, trop souvent, les moyens audiovisuels ont été utilisés comme des auxiliaires mineurs de l'enseignement sur lequel, trop souvent, ils ont eu, comme l'on dit, le même effet qu'un cautère sur une jambe de bois. En fait, un tout petit remède qui n'a que très peu d'effet par rapport à l'efficacité potentielle de tous ces moyens.  相似文献   
117.
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   
118.
The problem of the construction of the optimal model of the automated control system of a Russian higher-education institution (the ACS of an RHEI) is studied. This term appeared in the 1970s–1980s and served as the beginning of a project that covered more than 50 of the largest higher-education institutions of the country and is also relevant today. Two main approaches to construction of an automated control system of Russian higher-education institutions are specified, viz., the development of a system using its own resources and the use of the product from a third-party developer. Examples of the application of these approaches are given and the structure of the elements (modules) of the systems is described. The necessity to search for the optimal structure of the elements included in the ACS of an RHEI is specified for most educational organizations taking their dimensions into account and their specific sectoral character, as well as the total expenditures for the acquisition (development) and support of the systems. An example of the structure of the optimal model and a third (combined) approach to its construction is given.  相似文献   
119.
120.
We conduct an analysis of 1835 pledges to 10 music production projects hosted on the largest Brazilian crowdfunding platform, namely the Catarse Web site, and we assess the relation between the fundraising accumulation period, the donor–entrepreneur distance and the propensity of donors to back projects. Our results suggest a significantly negative association between distance and the value of capital pledged to projects, which is consistent with the notion that the entrepreneur’s network of close contacts might play a central role in funding. Furthermore, our results contradict the idea that crowdfunding reduces the inhibiting effect of donor–entrepreneur distance. In addition, the results show that a long project exposure is associated with higher values of pledges. These results suggest practical implications for the study of crowdfunding as a financing platform. This study contributes to the literature on the use of crowdfunding as an alternative funding source in a major emerging market.  相似文献   
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-23

京公网安备 11010802026262号