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   1746篇
  免费   19篇
  国内免费   11篇
教育   1069篇
科学研究   121篇
各国文化   10篇
体育   419篇
综合类   1篇
文化理论   28篇
信息传播   128篇
  2023年   12篇
  2022年   31篇
  2021年   42篇
  2020年   42篇
  2019年   68篇
  2018年   102篇
  2017年   90篇
  2016年   95篇
  2015年   44篇
  2014年   63篇
  2013年   208篇
  2012年   85篇
  2011年   75篇
  2010年   80篇
  2009年   61篇
  2008年   62篇
  2007年   63篇
  2006年   71篇
  2005年   54篇
  2004年   42篇
  2003年   32篇
  2002年   38篇
  2001年   33篇
  2000年   21篇
  1999年   23篇
  1998年   23篇
  1997年   17篇
  1996年   10篇
  1995年   8篇
  1994年   8篇
  1993年   8篇
  1992年   11篇
  1991年   8篇
  1990年   14篇
  1989年   7篇
  1988年   8篇
  1987年   5篇
  1986年   8篇
  1985年   5篇
  1984年   11篇
  1983年   5篇
  1982年   4篇
  1981年   5篇
  1980年   5篇
  1979年   9篇
  1978年   5篇
  1977年   6篇
  1975年   11篇
  1974年   6篇
  1968年   3篇
排序方式: 共有1776条查询结果,搜索用时 15 毫秒
991.
The presentation uses the slogan of the ISHPES-congress ‘Global perspectives on Sports and Movement Cultures: From Past to Present’ in Qatar, by focusing on the development of modern sports which involve nationalism, internationalism, and cultural imperialism. Theoretical considerations on sports history and universal history form the introduction to the presentation. Sports have indeed become universal and taken on global perspectives, but both factors are based on local, regional, and national physical cultures. In a second step, the thesis of sport as a ‘pattern of modern universal culture’ (Bausinger) is discussed. Deep structures of anthropologically based categories of (natural) physical cultures like running, jumping, or throwing are differentiated from surface-oriented structures such as man-made sport. The notion of sport as a dominant, but permanently changing form (and content) of modern physical culture is described and explained with respect to the work of Allen Guttmann and Norbert Elias.  相似文献   
992.
本文对我国种子植物特有属作了初步研究,提出如下几点粗浅的看法:     1.根据我国各特有属的现代地理分布格局,大部分特有属具有明显的温带性特点。     2.我国特有属在水平分布上具有极不均匀的特点。各特有属的广布程度都很低,生态特     化现象十分明显。在垂直分布上,则主要分布于中海拔地区。特有属数目并不随海拔增高而     增多。     3.根据特有属分布的密集程度和分布区边界的密集交叠情况,划定了三个特有属分布中    心,即川东—鄂西中心, 滇东南—桂西中心和川西—滇西北中心。前二中心可能是残遗中心,后一中心则可能为分化中心。  相似文献   
993.
Interventions in out-of-school settings have been shown in previous studies to be effectively increase students’ science knowledge and motivation, with mixed results on whether they are more effective than teaching at school. In this study, we compared an out-of-school setting in a reptile and amphibian zoo (Landau, Germany) with a sequence of classroom teaching and a control group without teaching on the topic. We compared learning at school (School) and out-of-school learning (Reptilium), which were tested in a randomized field setting with a focus on knowledge and motivation. Sixty-five elementary students participated in either the School group, Reptilium group or control group. We measured knowledge on the topics reptiles and amphibians with a newly developed two-factorial test, calibrated with item response theory, before the intervention, immediately afterwards (posttest) and 2 weeks later (follow-up). Motivation was measured immediately after the intervention. Data analyses were performed using SPSS and Mplus. We conclude that the two interventions appeared highly superior to the control group and that the out-of-school setting in the Reptilium was more effective than the school-only program. Concerning motivation, perception of choice was higher in the Reptilium than in the School group. There were gender-by-treatment interaction effects for knowledge in the posttest and follow-up, for perceived competence and for pressure/tension. Concerning knowledge, boys performed better in the School group than girls but this gender gap was not significant in the Reptilium group. Boys perceived themselves as more competent in the School group while girls reported less pressure/tension in the Reptilium group. In conclusion, encountering living animals in a formal zoo learning arrangement is encouraged in primary school since it supports self-determination (free choice), leads to higher achievement and closes gender disparities in achievement.  相似文献   
994.
The authors in a convergent parallel mixed method design aimed to investigate whether and how the geometry knowledge and attitude toward geometry of students with field-dependent/independent cognitive style improve differentially within a project-based learning environment. Quantitative data were collected from 97 seventh-grade students before and after the treatment. Repeated measures multivariate analysis of covariance results, controlling for gender and prior mathematics achievement, revealed a statistically significant main effect of time but not cognitive style. Follow-up repeated measures analysis of covariance by controlling the experiment-wise alpha level indicated that field-dependent, field-mixed, and field-independent students achieved a statistically significant mean increase for all measures. The qualitative (classroom observations and interviews with some students) data provided evidence that contextualizing, visualizing, and collaborating opportunities in the project-based learning environment made contributions for mean increase.  相似文献   
995.
While internet based surveys have gained importance in recent years, their use in adolescent related research is rare at best. The present paper offers an overview of advantages and disadvantages of online surveys and discusses their use in regard to the questioning of adolescents. In a comparison between two random samples of 13 to 17 year olds, we examine how differences between a telephone (N?= 1,784) and an online (N?= 1,652) survey materialize in regard to the coverage rate, discontinuation behavior, and item-non-response. The sampling is analyzed further with regard to sociodemographic differences. While there are no expected coverage problems for the adolescent target group, the results show that adolescents from educated families, as well as those with a migration background, took part more often in the online survey as opposed to the telephone survey. Also, a more intensive mobile use of the internet, as well as in part greater sports activity, is connected to a higher willingness to take part in the survey which suggests that the survey topic influences the willingness to participate.  相似文献   
996.
The paper attempts to determine whether there are significant gender differences in academic performance among undergraduate students in a large public university in Turkey based on three indicators; university entrance scores, performance in the English preparatory school and in the program the student is majoring in. The paper finds that a smaller number of female students manage to enter the university and when they do so, they enter with lower scores. However, once they are admitted to the university, they excel in their studies and outperform their male counterparts. This result holds after controlling for the field of study and individual attributes.  相似文献   
997.
规定[i]﹢[u]=[y](鱼).用j,q,x,y作复音声母(含[i]声母),并采用j,q,x分别替代汉语拼音"声介母"结构ji-,qi-,xi-;用o,iu,on,om,-m分别依序作汉语拼音韵母ou,ü,uan,ong,-ng的代码;用ea作汉语音位[iE]("姐"的韵母)的代码;用oi作汉语拼音韵母uai和üe的代码;用oo表示与u相同的读音.韵母后加e表示读第一声,加h读第二声,加v读第三声.下列情况均读去声:(1)音节中有字母双写;(2)鼻韵母后加o;(3)韵母o,io,uo,ao后加a;(4)韵母为au,iau或者y,ay,ey,ay,oy,uy.采用元音字母表调,不仅视觉效果极好,而且能使声母简码得以极限发挥.  相似文献   
998.
International Journal of Science and Mathematics Education - The aim of this study was to determine the professional developments of science teacher candidates over 14 weeks of...  相似文献   
999.
1000.
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