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   19155篇
  免费   230篇
  国内免费   119篇
教育   13204篇
科学研究   2641篇
各国文化   123篇
体育   1473篇
综合类   18篇
文化理论   195篇
信息传播   1850篇
  2021年   123篇
  2020年   216篇
  2019年   332篇
  2018年   501篇
  2017年   501篇
  2016年   578篇
  2015年   374篇
  2014年   388篇
  2013年   2845篇
  2012年   454篇
  2011年   521篇
  2010年   329篇
  2009年   281篇
  2008年   342篇
  2007年   355篇
  2006年   332篇
  2005年   954篇
  2004年   781篇
  2003年   561篇
  2002年   380篇
  2001年   334篇
  2000年   315篇
  1999年   314篇
  1998年   156篇
  1997年   163篇
  1996年   205篇
  1995年   187篇
  1994年   139篇
  1993年   152篇
  1992年   233篇
  1991年   228篇
  1990年   246篇
  1989年   271篇
  1988年   217篇
  1987年   240篇
  1986年   226篇
  1985年   258篇
  1984年   234篇
  1983年   225篇
  1982年   184篇
  1981年   174篇
  1980年   165篇
  1979年   250篇
  1978年   196篇
  1977年   187篇
  1976年   156篇
  1975年   134篇
  1974年   155篇
  1973年   136篇
  1971年   125篇
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
131.
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   
132.
133.
134.
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   
135.
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   
136.
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   
137.
An implicit assumption that fostering inclusion means having shared systems encompassing the needs of all children is evident in many aspects of policy development over the past decade. Reflecting this, the implementation of ‘baseline assessment’ schemes (i.e. testing at around age 5 years) is a statutory requirement on all state-maintained special and mainstream schools in England since 1998. Our argument is that the enthusiasm for commonality has obscured the need to question the value and validity of baseline assessment schemes for children with special educational needs (and possibly some others such as children having English as an additional language). We illustrate this position with reference to data from our recent study on baseline assessment in England. The study encompassed survey data from a national sample of 982 schools, of which 107 were special schools. Between them, these special schools used 42 different baseline assessment schemes. Comparisons between our mainstream and special school respondents indicated that there were similarities in the nature and perceived value of the schemes used. However, special schools were less satisfied with their schemes. We suggest that a reappraisal of the nature and purpose of baseline assessment for pupils with special educational needs warrants greater critical debate. Without this, there is a danger that a stress on commonality, veiling an inclusion orthodoxy, will ultimately be counterproductive.  相似文献   
138.
Polarography     
J Heyrovsky’s invention of polarography in which a dropping mercury electrode is used in the electrochemical cell revolutionised electroanalysis, study of electrode kinetics and adsorption studies on mercury electrodes. Polarography has also directly contributed to the development of new and innovative ideas in electrochemical techniques, instrumentation and applications  相似文献   
139.
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   
140.
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