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   299篇
  免费   1篇
教育   223篇
科学研究   5篇
各国文化   1篇
体育   28篇
文化理论   2篇
信息传播   41篇
  2023年   16篇
  2020年   2篇
  2019年   1篇
  2018年   1篇
  2017年   3篇
  2016年   12篇
  2015年   3篇
  2014年   12篇
  2013年   164篇
  2012年   3篇
  2011年   4篇
  2010年   2篇
  2009年   4篇
  2008年   8篇
  2007年   5篇
  2006年   10篇
  2005年   4篇
  2004年   1篇
  2002年   3篇
  2001年   2篇
  1999年   1篇
  1998年   1篇
  1997年   1篇
  1995年   1篇
  1990年   1篇
  1989年   1篇
  1988年   1篇
  1987年   2篇
  1982年   1篇
  1980年   3篇
  1979年   4篇
  1978年   4篇
  1977年   4篇
  1976年   4篇
  1975年   6篇
  1974年   3篇
  1968年   1篇
  1965年   1篇
排序方式: 共有300条查询结果,搜索用时 15 毫秒
61.
我国现在的专利制度似乎正在实施所谓的全面禁止反悔规则。一方面,在专利侵权诉讼中,专利权人可因专利申请过程中或者专利无效宣告程序中所作的限缩性修改和陈述而被禁止反悔,另一方面,在专利无效宣告程序和专利无效诉讼程序中,他又可因自己在专利侵权法律程序中的陈述而被禁止反  相似文献   
62.
63.
64.
65.
Research Findings: The transition to kindergarten has important ramifications for future achievement and psychosocial outcomes. Research suggests that physical aggression may be related to difficulty during school transitions, yet no studies to date have examined the role of relational aggression in these transitions. This article examines how engagement in preschool physical and relational aggression predict psychosocial adjustment during the kindergarten school year. Observations and teacher reports of aggression were collected in preschool, and kindergarten teachers reported on student–teacher relationship quality, child internalizing problems, and peer acceptance in kindergarten. Results suggested that preschool physical aggression predicted reduced peer acceptance and increased conflict with the kindergarten teacher. High levels of relational aggression, when not combined with physical aggression, were related to more positive transitions to kindergarten in the domains assessed. Practice or Policy: These data lend support to the need for interventions among physically aggressive preschoolers that target not only concurrent behavior but also future aggression and adjustment in kindergarten. Thus, educators should work to encourage social influence in more prosocial ways among aggressive preschoolers.  相似文献   
66.
To become skillful readers, children have to acquire the ability to translate printed words letter by letter into phonemic representations (phonological recoding) and the ability to recognize the written word forms holistically (orthographical decoding). Whereas phonological recoding is the key for learning to read and useful for recognizing unknown or low-frequent words, orthographical decoding is often more efficient and takes less time, thus facilitating reading processes on the sentence and text level. Several studies with English-speaking children provided evidence for the relevance of the two routes but the question whether and to what extent both word recognition skills contribute to reading comprehension in young German readers requires further clarification. Based on data from a cross-sectional study with German primary school children we investigated whether and to what extent both types of word recognition skills are associated with sentence (N = 666) and text comprehension skills (N = 149) and how these relationships develop from Grade 2 to 4. The results indicate that both phonological recoding skills and orthographical decoding skills are important for reading comprehension skills. Their relative weight does not change across grade levels.  相似文献   
67.
Sexual health programs on college campuses are often directed toward single individuals with a focus on sexual risk. Using a sample of college students, this study examines how relationship status relates to sexual behaviors and may be a factor for sexual risk. Based on the study's results, expansion of sexual health programming on college campuses to include those married and in committed relationships is justified.  相似文献   
68.
Two algorithms are provided which define two new ways of averaging waveforms. The representative average maintains shape, has average d.c. offset, average amplitude and average position of noise-free input signals whose onset varies in time after a trigger pulse. The synchronous average removes random bipolar noise, the amplitude of which is below a critical threshhold, from a randomly occuring waveform. The latter does not require a trigger pulse, maintains its shape, has an average d.c. offset and average amplitude. Its position in the output field is such that the centroid of the waveform is placed in the center of the field. Both methods involve the definition of average phase angle and a quantity called the angular standard deviation.  相似文献   
69.
70.
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