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   5727篇
  免费   101篇
  国内免费   20篇
教育   3868篇
科学研究   668篇
各国文化   40篇
体育   542篇
综合类   6篇
文化理论   60篇
信息传播   664篇
  2023年   34篇
  2022年   39篇
  2021年   57篇
  2020年   113篇
  2019年   179篇
  2018年   231篇
  2017年   254篇
  2016年   209篇
  2015年   159篇
  2014年   196篇
  2013年   978篇
  2012年   170篇
  2011年   154篇
  2010年   143篇
  2009年   116篇
  2008年   134篇
  2007年   149篇
  2006年   127篇
  2005年   86篇
  2004年   90篇
  2003年   91篇
  2002年   68篇
  2001年   112篇
  2000年   135篇
  1999年   93篇
  1998年   76篇
  1997年   66篇
  1996年   70篇
  1995年   51篇
  1994年   52篇
  1993年   39篇
  1992年   80篇
  1991年   66篇
  1990年   63篇
  1989年   65篇
  1988年   74篇
  1987年   57篇
  1986年   79篇
  1985年   69篇
  1984年   53篇
  1983年   68篇
  1982年   51篇
  1981年   38篇
  1979年   50篇
  1978年   47篇
  1977年   36篇
  1976年   40篇
  1974年   34篇
  1973年   35篇
  1972年   30篇
排序方式: 共有5848条查询结果,搜索用时 23 毫秒
101.
In this study, the reading comprehension of deaf children and adolescents in the Netherlands is examined along with their word identification. The reading comprehension of 464 deaf students and the word identification of 504 deaf students between 6 and 20 years of age was examined. The results show the reading comprehension scores of deaf children to be far below the scores of hearing children. On average, the deaf subjects scored at a level equivalent to a hearing child in the first grade. The word identification scores of the deaf children, however, were almost equivalent to the scores of hearing children. Although reading comprehension and word identification appear to be related, this relation does not completely explain the comprehension difficulties encountered by deaf children. Additional factors are required to explain deaf children’s difficulties with reading comprehension.  相似文献   
102.
In this article we derive the distribution, mean and variance of the number of cycles in a randomly selected permutation of the first n integers.  相似文献   
103.
Chemical methods to determine the conformations and absolute configurations of menthol, a cyclohexane derivative with 3 chiral centres, are described.  相似文献   
104.
Some interesting examples of the linkage between the structure and biological function of secondary metabolites in plants and animals are described.  相似文献   
105.
The goal was to test a new dual identity perspective on gender identity by asking children (n = 467) in three grades (Mage = 5.7, 7.6, 9.5) to consider the relation of the self to both boys and girls. This change shifted the conceptualization of gender identity from one to two dimensions, provided insights into the meaning and measurement of gender identity, and allowed for revisiting ideas about the roles of gender identity in adjustment. Using a graphical measure to allow assessment of identity in young children and cluster analyses to determine types of identity, it was found that individual and developmental differences in how similar children feel to both genders, and these variations matter for many important personal and social outcomes.  相似文献   
106.
Meta-analysis was used to review the results of 25 studies that compared the classroom behavior of children and adolescents with learning disabilities (LD) to children without learning disabilities. The data were analyzed from several different methodological perspectives. Results showed that both methodologically strong and weak studies demonstrated significant behavioral deficits of children with learning disabilities compared to their nondisabled peers in each of five overall areas: on-task behavior, off-task behavior, conduct disorders, distractibility, and shy/withdrawn behavior. Both observational and teacher rating data demonstrated these differences. Effect sizes for both groups of studies seemed to cluster around 1 standard deviation, suggesting noticeable and educationally significant impairment in the behavior of children with disabilities. Analysis of grade-level effect sizes suggests some explanation for the large number of referrals often witnessed during the elementary school years. Educational implications of these behavioral differences in terms of implications for mainstreaming are discussed.  相似文献   
107.
The legal system is an important part of a society's response to child abuse and child neglect. Courts need to be guided in their deliberations by experts from many different professions. Consultation and in-court expert testimony is necessary from medicine, psychology, psychiatry, social work and other professions both to prove child abuse and neglect and establish the power of the court to act on behalf of a child but also to guide the court in the intervention strategy most suited to the needs of the child and his family. Non-lawyers often feel uncomfortable in the legal setting. The adversary process is foreign to their training and professional experience. Collaboration with a lawyer greatly improves their effectiveness in court. Lawyers, on the other hand, need to make maximum use of medical and social-psychological experts in the court process in the interests of their clients; but to do so lawyers need a basic understanding of the other professions. With an emphasis on a process of mutual education, the paper presents a framework for collaboration between lawyers and expert witnesses in child abuse and neglect cases. “Expert witness” is defined; informal consultation is encouraged; suggestions for selecting a collaborator are made; initial contracts between lawyer and expert, case conferencing and preparation for trial are discussed; specific advice on direct and cross examination is provided.  相似文献   
108.
The authors evaluated an unfolding case‐based approach to a practicum in counseling course infusing crisis, trauma, and disaster preparation for changes in students’ crisis self‐efficacy across a semester. The course, informed by constructivist‐developmental pedagogy and centered on the unfolding case, resulted in significant increases in students’ crisis self‐efficacy.  相似文献   
109.
OBJECTIVE: The aim of this study was to examine preschoolers' perceptions of maternal discipline's unfairness. The participants' gender, age, SES, family intactness and sibship size were examined for their possible relevance to such perceptions. METHOD: Five vignettes, describing forms of discipline the literature suggests constitute psychological maltreatment, were presented to 57 preschoolers (27 boys and 30 girls). They included excessive withdrawal of privileges, withdrawal of entertainment, differential treatment of siblings, threatening power assertion, and public humiliation. The children had to decide on the fairness or unfairness of each vignette in which a child was disciplined in each of these ways by his/her mother. They were then asked to offer an explanation for each of their choices. RESULTS: Of the five forms of discipline employed in the vignettes, children judged differential treatment of siblings as more unfair than either power assertion (threatening spanking), or public humiliation. No differences were found for withdrawal of privileges or entertainment. Of the various predictor variables employed, preschoolers from smaller families were more likely to judge threatening to spank as unfair. As well, compared to boys, girls and children from larger families were more likely to judge differential treatment as unfair. Age, SES, and family intactness had no effect on discipline judgements likely because of their limited range. CONCLUSIONS: The findings suggest that preschoolers can offer views on the fairness or unfairness of parental disciplinary practices, and can differentiate among them. Further, not all forms of parental discipline were viewed by preschoolers as unfair. Yet it has to be appreciated that the vignettes employed here were adapted for younger children, hence they may not have appeared as negative as in studies involving older children and adults.  相似文献   
110.
The role of vision was examined as infants prepared to grasp horizontally and vertically oriented rods. Hand orientation was measured prior to contact to determine if infants differentially oriented their hands relative to the object's orientation. Infants reached for rods under different lighting conditions. Three experiments are reported in which (1) sight of the hand was removed (N = 12), (2) sight of the object was removed near the end of the reach (N = 40, including 10 adults), and (3) sight of the object was removed prior to reach onset (N = 9). Infants differentially oriented their hand to a similar extent regardless of lighting condition and similar to control conditions in which they could see the rod and hand throughout the reach. In preparation for reaching, infants may use the current sight of the object's orientation, or the memory of it, to orient the hand for grasping; sight of the hand had no effect on hand orientation.  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