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   1773篇
  免费   55篇
  国内免费   1篇
教育   1374篇
科学研究   55篇
各国文化   30篇
体育   126篇
综合类   1篇
文化理论   20篇
信息传播   223篇
  2024年   3篇
  2023年   17篇
  2022年   28篇
  2021年   46篇
  2020年   78篇
  2019年   108篇
  2018年   126篇
  2017年   131篇
  2016年   101篇
  2015年   76篇
  2014年   77篇
  2013年   412篇
  2012年   59篇
  2011年   58篇
  2010年   60篇
  2009年   44篇
  2008年   56篇
  2007年   37篇
  2006年   38篇
  2005年   34篇
  2004年   31篇
  2003年   23篇
  2002年   22篇
  2001年   13篇
  2000年   17篇
  1999年   7篇
  1998年   13篇
  1997年   12篇
  1996年   8篇
  1995年   8篇
  1994年   10篇
  1993年   6篇
  1992年   5篇
  1991年   6篇
  1990年   4篇
  1989年   2篇
  1988年   2篇
  1987年   4篇
  1986年   6篇
  1985年   7篇
  1984年   9篇
  1983年   6篇
  1982年   4篇
  1981年   2篇
  1979年   2篇
  1978年   3篇
  1970年   1篇
  1943年   1篇
  1942年   1篇
  1932年   1篇
排序方式: 共有1829条查询结果,搜索用时 15 毫秒
951.
Due to the Covid-19 pandemic, the start of the academic year in September 2020 was a unique time for those transitioning to a new school. This study aimed to explore the experiences of parents who supported autistic children making a range of different school transitions in 2020. Semi-structured interviews were carried out with 13 parents of autistic children in the UK, and data were analyzed with reflexive thematic analysis. For some parents, the Covid-19 pandemic negatively impacted on aspects of school transitions. However, other parents expressed the view that these same circumstances created opportunities to approach the school transition in a unique, improved manner. This article sheds light on the heterogeneity of experiences and perceptions of parents of autistic children, and highlights the need to examine the impact of Covid-19 on school transitions, including practices that it may be advantageous to retain.  相似文献   
952.
This paper considers a synchronization strategy for a group of differentially driven mobile robots subject to input time-delayed control signals. The continuous time model of the vehicles is exactly discretized in order to obtain a larger dimension representation free of delays. The control strategy is based on the concept of synchronization, under two main assumptions: a specific formation for the group of robots and the tracking of a particular desired trajectory. The control strategy proposed in this work allows the consideration of causal feedback laws avoiding the use of an additional prediction strategy that counteracts the undesired input time-delay effects. The performance of the synchronization strategy is evaluated by real-time experiments with the help of a group of three mobile robots and an indoor absolute localization system based on artificial vision.  相似文献   
953.
Abstract

Competitive sport has been under increasing discussion as a possible favourable factor in the development of eating disorders among children and adolescents. The aim of this study was to determine the frequency of sport-specific eating disorders, in line with the concept of anorexia athletica. This prospective field study included one experimental group and two control groups (disease and healthy). Fifty-two pre-professional ballet dancers aged 13–20 years were tested for clinical eating disorders, anorexia athletica criteria, eating disorder related psychopathology and self-concept, and were compared with 52 patients with anorexia nervosa and 44 non-athletic controls of the same age. The study was conducted using semi-structured interviews as well as self-report questionnaires. A clinical eating disorder diagnosis was made in 1.9% of the ballet dancers versus 0% of the high school students; anorexia athletica was diagnosed in 5.8% of the dancers versus 2.3% of the students. Ballet dancers scored lower than patients with anorexia nervosa with regard to eating disorder related psychopathology and higher than the patients with regard to self-concept. We conclude that more sensitive tools to differentiate between sport-specific (eating) patterns, anorexia athletica and clinically relevant eating disorders are needed, especially for aesthetic sports such as ballet. It remains an important goal to identify athletes with symptoms of anorexia athletica irrespective of their physique and/or sport.  相似文献   
954.
In post-conflict and fragile contexts, one central aim of education is to prepare citizens to rebuild society and manage conflict. In this paper, we discuss the ways that citizenship education, students’ civic attitudes, and student civic practices vary across two post-conflict contexts in Africa: Liberia and Rwanda. First, we consider the historical and current complexities of citizenship education in these countries drawing on a post-colonial framework and Osler and Starkey’s three dimensions of citizenship. Next, we discuss survey and interview data from secondary students based on separate multi-level case studies in the respective countries. We note differences and similarities in student conceptions of good citizenship, civic identity, classroom climate, and civic engagement across the two countries, as well as variation by school type and gender. Some notable findings included less active conceptions of citizenship and openness to discussing controversial issues in Rwanda than in Liberia, and less participation in out of school activities among young women than young men. These and other results highlight differing contextual values of development, security, freedom of speech, and civic action and the overall importance of citizenship education in a post-conflict context.  相似文献   
955.
Different moderators/mediators of risk are involved in developmental dyslexia (DD), but data are inconsistent. We explored the prevalence of season of birth and its association with gender and age of school entry in an Italian sample of dyslexic children compared to an Italian normal control group. The clinical sample included 498 children (345 boys, mean age 10.3 ± 2.1 years) with DD, the control sample 1,276 children (658 boys, mean age 10.8 ± 2.2 years) from four elementary schools from the same urban area, and with the same socio-economic status level. A prevalence of birth in autumn was found among children with DD compared to controls (34% versus 24%, p < 0.0001). Children with DD were more frequently males (p < 0.0001) and had a lower mean age of school entry (p < 0.0001). Regarding the distribution of ages, 11.4% of children with DD, but none of the subjects in the control group, started school before 5.7 years. Therefore, greater risk of DD was related to age of school entry (OR = 2.72), gender (OR = 2.16), and season of birth (OR = 1.21). Significant interactions between boys with DD born in autumn, and correct school of entry (OR = 2.56) were joint predictors of higher risk of DD. The association between birth in autumn and DD may be explained by the earlier age of school entry, which may be a critical element in the youngest children with DD or at risk to DD. Whether Italian school policy is oriented to anticipate the school entry, a closer detection of early learning disorders and associated risk factors (familial load, specific language disorders, and attention deficit hyperactivity disorder) should be warranted.  相似文献   
956.
957.
958.
959.
This study is part of an on-going research program exploring life management in families of children with a variety of disability characteristics and age ranges. Scorgie, Wilgosh, and McDonald (1996) used a qualitative, interview methodology to identify effective strategies, qualities, and transformational outcomes for parents of children with disabilities who had been identified, by service agencies, as having effective life management strategies. A larger group of parents, from similarly identified, effectively managing families, was surveyed (Scorgie, Wilgosh, & McDonald, 1997), using the Life Management Survey (LMS) developed from the nine themes found in the qualitative study, supporting the original findings. A replication of the LMS survey study (Wilgosh, Scorgie, & Fleming, 2000) confirmed the previous findings with parents who were not preselected as effective life managers. In fact, the consistency across the three Canadian studies supported examination of family life management cross-nationally. The present study shows that Catholic Italian parents of children with disabilities have patterns of effective life management strategies, parent qualities, and parent transformational outcomes which characterize them and are similar to those of the Canadian parents. However, in the Italian study, some differences were found related to type of disability, emphasizing the need for qualified professional support, guidance and counselling, focused on the unique needs of each family, as related to the child's disability needs.  相似文献   
960.
Laura Bush  WJ 《英语辅导》2013,(1):26-28
2012年10月11日是第一个国际女童日。然而就在这个节日的前两天,巴基斯坦塔利班公然对14岁的少女玛拉拉·尤萨法扎伊进行枪击。这一行为迅速引起国际社会的震惊和谴责,也引发更多人对于女童受教育权的关注。美国前第一夫人劳拉·布什特别撰文声援玛拉拉,并将其比  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