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   24067篇
  免费   376篇
  国内免费   15篇
教育   17294篇
科学研究   2056篇
各国文化   243篇
体育   1939篇
综合类   13篇
文化理论   178篇
信息传播   2735篇
  2022年   186篇
  2021年   272篇
  2020年   409篇
  2019年   656篇
  2018年   886篇
  2017年   863篇
  2016年   757篇
  2015年   445篇
  2014年   708篇
  2013年   4683篇
  2012年   664篇
  2011年   690篇
  2010年   507篇
  2009年   526篇
  2008年   578篇
  2007年   523篇
  2006年   457篇
  2005年   438篇
  2004年   391篇
  2003年   380篇
  2002年   364篇
  2001年   490篇
  2000年   411篇
  1999年   373篇
  1998年   212篇
  1997年   224篇
  1996年   244篇
  1995年   242篇
  1994年   197篇
  1993年   205篇
  1992年   328篇
  1991年   305篇
  1990年   309篇
  1989年   308篇
  1988年   261篇
  1987年   306篇
  1986年   269篇
  1985年   309篇
  1984年   248篇
  1983年   214篇
  1982年   194篇
  1981年   168篇
  1980年   156篇
  1979年   260篇
  1978年   187篇
  1977年   168篇
  1976年   157篇
  1975年   141篇
  1974年   147篇
  1971年   142篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
Behavioral aspects of self-regulation, including controlling and directing actions, paying attention, and remembering instructions, are critical for successful functioning in preschool and elementary school. In recent years, several direct assessments of these skills have appeared, but few studies provide complete psychometric data and many are not easy to administer. We developed a direct measure of children's behavioral regulation, the Head-to-Toes Task, and report performance of participants aged 36–78 months, including a group of Spanish-speaking children, from two different sites (N = 353; N = 92). We examined construct validity, examiner reliability, sources of variation, and associations between task scores and background characteristics. Results showed that the task was valid, reliable, and demonstrated variability in children's scores. A cross-classified hierarchical growth curve analysis indicated that girls, participants assessed in English, and higher-socioeconomic status (SES) children achieved slightly higher average scores than did boys, Spanish-speaking and lower-SES children, but effect sizes were small. Older participants achieved higher scores than did younger children, and there were no effects for site. Results suggest that the Head-to-Toes Task is an informative and easy-to-administer direct assessment of children's behavioral regulation. We discuss implications for its use in early childhood settings.  相似文献   
992.
OBJECTIVE: This study compared experiences of children sexually abused by peers to those of children abused by adolescents/adults. Variables examined included perceived negativity of the abuse, self-reported outcomes, overall psychological functioning, and disclosure. METHOD: An archival data set containing retrospective reports of childhood sexual experiences was culled for instances of sexual abuse by child peers and adolescents/adults. An equivalent nonabused comparison group was identified. The Self-Report Outcome Checklist (SROC; Gilbert, 1994b), the MMPI-Hugo Short Form (Hugo, 1971) and a disclosure survey were also retrieved from these data. RESULTS: Compared to abuse by peers, abuse perpetrated by adolescents/adults was more intrusive and intrafamilial. Both groups rated their experiences as equally negative, and reported equally pervasive outcomes. Those abused by adolescents/adults reported significantly higher scores on the Psychopathic Deviate, Psychasthenia, and Schizophrenia scales compared to nonabused controls; similar findings did not emerge for those abused by child peers. Less than a fourth in either abuse group reported disclosing their experience to a parent. Among those who did not disclose, participants abused by child peers anticipated less support from both parents and more anger from their mothers. CONCLUSIONS: The findings suggest that child peer sexual abuse may be associated with adverse outcomes.  相似文献   
993.
994.
995.
996.
This paper discusses implications of the convergence of legal and organizational issues in the context of developing and implementing digital government projects in large urban settings. By the convergence of legal and organizational issues we refer to two important aspects of urban government: (1) the close relationship between legal/policy structures and the way government is organized and functions, and (2) the way the legal/policy elements interact with organizational dynamics and work cultures to influence digital government projects (and government activities generally). It is our contention that convergence in the organizational and legal/policy context is a powerful determinant of how these projects develop and how likely they are to succeed. Therefore the understanding of this convergence and related dynamics is critically important to planning and designing both policy to promote digital government and particular digital government projects themselves. Illustrations of this convergence and its consequences are presented. They are based on research involving two digital government projects in urban settings: development of a management information system for homeless shelter administration and a developing a system for sharing information among New York City agencies.  相似文献   
997.
"Change" is a critical dimension of contemporary experience. Library associations are not exempt, and they change in ways similar to other organizations. According to some authorities, four phases typify the process: diagnosis, design, implementation, and incorporation. Focusing on changes in the Medical Library Association's longstanding program of continuing education, the authors utilize the "phase framework" to chart that association's movement from a management system depending primarily upon volunteers to one in which professional staff figure prominently. The historical review serves a heuristic purpose for individuals and institutions in identifying characteristic features of the change process.  相似文献   
998.
Abstract

The issue of who should be included and recognised as professionals in the early childhood education and care (ECEC) service system is both contested and pressing in the current policy climate. At stake is a high-quality early childhood care and education service system that is both responsive and appropriate to the constituency it serves. A review of the history of ECEC professionalism reveals complex entanglements and debates regarding professional belonging. Services that deliver education and care to children and families living in high poverty contexts are often excluded from ECEC professionalism debates. Drawing on notions of rationality, emotionality and criticality presented in recent accounts of ECEC professionalism, we use data collected from interviews with service providers delivering services to children and families living in high poverty contexts in Australia to develop an account of criticality that is pertinent to current funding and policy contexts. We argue that these service providers’ perspectives about their own professionalism have much to offer broader debates.  相似文献   

999.
This review highlights two areas of particular interest in the study of social learning in fowl. First, the role of social learning in the development of feeding and foraging behavior in young chicks and older birds is described. The role of the hen as a demonstrator and possible teacher is considered, and the subsequent social influence of brood mates and other companions on food avoidance and food preference learning is discussed. Second, the way in which work on domestic fowl has contributed to an understanding of the importance of directed social learning is examined. The well-characterized hierarchical social organization of small chicken flocks has been used to design studies which demonstrate that the probability of social transmission is strongly influenced by social relationships between birds. The practical implications of understanding the role of social learning in the spread of injurious behaviors in this economically important species are briefly considered.  相似文献   
1000.
Educational Psychology Review - Researchers studying curiosity and interest note a lack of consensus in whether and how these important motivations for learning are distinct. Empirical attempts to...  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