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   3728篇
  免费   31篇
教育   2603篇
科学研究   315篇
各国文化   56篇
体育   339篇
综合类   2篇
文化理论   50篇
信息传播   394篇
  2022年   19篇
  2021年   37篇
  2020年   69篇
  2019年   106篇
  2018年   121篇
  2017年   112篇
  2016年   94篇
  2015年   63篇
  2014年   110篇
  2013年   847篇
  2012年   85篇
  2011年   94篇
  2010年   76篇
  2009年   76篇
  2008年   79篇
  2007年   74篇
  2006年   91篇
  2005年   80篇
  2004年   72篇
  2003年   71篇
  2002年   54篇
  2001年   48篇
  2000年   56篇
  1999年   51篇
  1998年   55篇
  1997年   46篇
  1996年   40篇
  1995年   35篇
  1994年   34篇
  1993年   39篇
  1992年   33篇
  1991年   38篇
  1990年   42篇
  1989年   42篇
  1988年   46篇
  1987年   43篇
  1986年   35篇
  1985年   32篇
  1984年   36篇
  1983年   43篇
  1982年   30篇
  1981年   21篇
  1980年   26篇
  1979年   42篇
  1978年   37篇
  1977年   29篇
  1976年   31篇
  1974年   24篇
  1973年   26篇
  1969年   19篇
排序方式: 共有3759条查询结果,搜索用时 0 毫秒
71.
Previous studies have distinguished cognitive, occupational status and network mechanisms in the relation between education and ethnocentrism. Hypotheses on these mediating mechanisms are derived from socialization theory, realistic group threat and contact theory. In the current study we use structural equation modeling to investigate the explanatory power of these three mechanisms simultaneously. The analysis is based on a representative population survey from the Netherlands (NELLS 2009, n = 1910). The results show that more than half of the initial association between education and ethnocentrism can be attributed to cognitive ability and occupational status mechanisms. The remaining part of the overall association, however, still has to be modeled as a direct relationship between education and ethnocentrism. This direct association can be attributed either to social desirability or to a direct liberalizing effect of education on social and political attitudes. Our analysis tentatively suggests that the rise of average education levels in Western societies might lead to less ethnocentric attitudes via the cognitive sophistication mechanism.  相似文献   
72.
海宁是我家     
回想起我怀孕的时候,本来一切都很顺利。我关注健康,热爱运动,注重营养,喜欢健康的食物并且积极阅读那些教育孩子的书本。我在中国生活有快两年了,在这段时间,我深爱着我的丈夫,我热爱我的工作,  相似文献   
73.
74.
Students need practice in decision making and problem solving, and sociodrama can provide this practice in a safe, nonthreatening context. It helps them to become aware of the typical ways they solve problems, and it increases both social and personal awareness. It may promote acceptance, cooperation, and cohesiveness in the classroom. Students readily adapt to this kind of activity and find it both enjoyable and stimulating. It is recommended as a useful method in the classroom and guidance and counseling setting for helping students understand their own behavior and the behavior of others.  相似文献   
75.
The study, using 60 five-year-olds, investigated forms of play: (a) self-action, (b) puppet-action, and (c) control treatments and differences between the sexes on aural language recall scores using semantic, absolute, and syntactic criteria. The results of the preliminary analyses between treatment groups and sex differences on the Peabody Picture Vocabulary Test and the Harris-Goodenough Draw-A-Man Test indicated no significant main or interaction effects. The subjects in treatment groups and boys and girls were relatively homogeneous on receptive language IQ and motor coordination, respectively. With 3 × 2 factorial analysis of variance experiments run on aural language recall for each of the three criteria, several significant results were noted: (a) Using the semantic criteria for scoring aural language recall, self-action play yielded significantly higher mean scores than either puppet-action or control groups. (b) Using the semantic criteria to score aural language recall, girls yielded significantly higher scores than boys. (c) Using either the absolute or syntactic scoring criteria, the results of the analysis indicated no significant main or interaction effects on aural language recall.  相似文献   
76.
Twenty-six normal first-grade children (M = 7.0 years) were administered the WISC-R, the McCarthy Scales, and the Woodcock-Johnson Scales of Cognitive Ability. Two years later, their levels of academic achievement were determined by way of the WRAT and global teacher ratings of classroom performance. Pearson intercorrelations among the summary indices of the three intellectual measures were significant and uniformly high (rang. 77-.95). Correlations between first-grade ability scores and third-grade achievement measures also were significant (range .64-.90), suggesting strong predictive validity for each of the cognitive instruments. Though not significantly so, the correlations between the Woodcock-Johnson and achievement tended to be the highest. The results indicate that all three intellectual measures are appropriate for predicting later academic achievement in young school-aged children.  相似文献   
77.
威廉皇帝物理研究所(Kaiser Wilhelm Institut für Physik)正式成立于1917年10月,爱因斯坦是它的首任所长。研究所并没有一栋宏伟宽敞的建筑,其办公地点就设在这位著名所长的私人住房里。正如柏林的马普科学史研究所所长雷恩  相似文献   
78.
79.
80.
A loss in total body mass during an ultraendurance performance is usually attributed to dehydration. We identified the changes in total body mass, fat mass, skeletal muscle mass, and selected markers of hydration status in 31 male nonprofessional ultratriathletes participating in a Triple Iron triathlon involving 11.4 km swimming, 540 km cycling and 126.6 km running. Measurements were taken prior to starting the race and after arrival at the finish line. Total body mass decreased by 1.66 kg (SD = 1.92; -5.3 kg to +1.2 kg; p < .001), skeletal muscle mass by 1.00 kg (SD = 0.90; -2.54 kg to +2.07 kg; p < .001), and fat mass by 0.58 kg (SD = 0.78; -1.74 kg to +0.87 kg; p < .001). The decrease in total body mass was associated with the decrease in skeletal muscle mass (r = .44; p < .05) and fat mass (r = .51; p < .05). Total body water and urinary specific gravity did not significantly change. Plasma urea increased significantly (p < .001); the decrease in skeletal muscle mass and the increase in plasma urea were associated (r = .39; p < .05). We conclude that completing a Triple Iron triathlon leads to decreased total body mass due to reduced fat mass and skeletal muscle mass but not to dehydration. The association of decrease in skeletal muscle mass and increased plasma urea suggests a loss in skeletal muscle mass.  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