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   2723篇
  免费   60篇
  国内免费   1篇
教育   2295篇
科学研究   38篇
各国文化   39篇
体育   88篇
综合类   1篇
文化理论   7篇
信息传播   316篇
  2022年   9篇
  2021年   41篇
  2020年   47篇
  2019年   69篇
  2018年   87篇
  2017年   102篇
  2016年   103篇
  2015年   75篇
  2014年   104篇
  2013年   589篇
  2012年   88篇
  2011年   82篇
  2010年   65篇
  2009年   89篇
  2008年   91篇
  2007年   75篇
  2006年   55篇
  2005年   70篇
  2004年   85篇
  2003年   56篇
  2002年   49篇
  2001年   44篇
  2000年   50篇
  1999年   49篇
  1998年   34篇
  1997年   38篇
  1996年   46篇
  1995年   34篇
  1994年   39篇
  1993年   34篇
  1992年   45篇
  1991年   34篇
  1990年   28篇
  1989年   16篇
  1988年   17篇
  1987年   14篇
  1986年   16篇
  1985年   17篇
  1984年   19篇
  1983年   19篇
  1982年   13篇
  1981年   20篇
  1980年   12篇
  1979年   11篇
  1978年   11篇
  1976年   10篇
  1975年   9篇
  1971年   8篇
  1970年   13篇
  1969年   8篇
排序方式: 共有2784条查询结果,搜索用时 15 毫秒
991.
Abstract

When Piketty’s book Capital in the Twenty-first Century was released in 2014, it became an overnight success. Piketty focused on the concentration of wealth in a tiny social elite, and showed that their wealth had increased following the financial crisis in 2008. Yet the value of Piketty’s book offers something more than this for social scientists concerned with social inequalities. His work on a large data-set of long-run income and wealth statistics illustrates that the assumptions and models which have guided the work of neoclassical economists are flawed, but that societal arrangements matter. Yet despite this insight, Piketty’s solution to the problem of inequality is to argue that ‘… the best way to reduce inequalities with respect to labor … is to invest in education’. In this article I argue that there are major problems with this proposed solution and outline three lacunae that need to be addressed.  相似文献   
992.
The creation of families by means of the new reproductive technologies has raised important questions about the psychological consequences for children, particularly where gamete donation has been used in the child's conception. Findings are presented of a study of family relationships and the social and emotional development of children in families created as a result of the 2 most widely used reproductive technologies, in vitro fertilization (IVF) and donor insemination (DI), in comparison with control groups of families with a naturally conceived child and adoptive families. The quality of parenting was assessed using a standardized interview with the mother, and mothers and fathers completed questionnaire measures of stress associated with parenting, marital satisfaction, and emotional state. Data on children's psychiatric state were also obtained by standardized interview with the mother, and by questionnaires completed by the mothers and the children's teachers. The children were administered the Separation Anxiety Test, the Family Relations Test, and the Pictorial Scale of Perceived Competence and Social Acceptance. The results showed that the quality of parenting in families with a child conceived by assisted conception is superior to that shown by families with a naturally conceived child. No group differences were found for any of the measures of children's emotions, behavior, or relationships with parents. The findings are discussed in terms of their implications for understanding the role of genetic ties in family functioning and child development.  相似文献   
993.
A group of 110 LD college students were compared to a random stratified sample (RSS) of 153 peers attending the same moderately selective college between 1980 and 1988. The LD students received comprehensive, highly coordinated support services for at least one semester. The groups were matched on gender, college experience, semester, and year of entry to the college. The LD and RSS groups were compared on high school preparation and performance, ACT and college performance, and graduation and academic failure rate. Although the LD students’ high school records, ACT scores, and college performance were inferior to that of the RSS group, they graduated at the same rate and within the same time frame. Neither was there any significant difference in the academic failure rate. Closer examination of the LD graduates and academic failures’ performance showed that in spite of the similarities in intellectual abilities, academic achievement, and aptitude-achievement discrepancy, two factors differentiated between the LD graduates and non-graduates: oral language abilities and motivation and attitude toward the teaching-learning process. These two factors accounted for 60 percent of the variance in graduation status. This research was supported in part by grants from the Butz and Thorn River Foundations.  相似文献   
994.
The secondary worlds created in fantasy encourage the reader to compare and contrast the real world with the imaginary. In this way, fantasy as a genre can be transformative. In this article, the dystopia created in The Giver (1993) by Lois Lowry is examined as a metaphor for racism. After exploring the young adult novel as mystical fantasy in the context of reader response theory, the author evaluates the monochromatic world of The Giver as a portrayal of the consequences of a colorblind stance. Pedagogical considerations and implications for practice are also discussed. Susan G. Lea received her M.Ed. from the University of Pennsylvania, where she is currently a doctoral candidate. She also serves as Chair, Board of Trustees, The Agnes Irwin School, an independent girls day school in Rosemont, PA. Her areas of research include how aesthetic response and co-constructed meaning are enhanced through well-known visual art presented in intertextual sets of picturebook art parody, local public mural art parody, and original artwork. Zelnick, “The battle for color-blind public policy.” Lowry, The Giver.  相似文献   
995.
Growing public awareness of the use of donor insemination (DI) to enable infertile couples to become parents has been accompanied by increasing concern regarding the potentially negative consequences for family relationships and child development. Findings are presented from a prospective study of the quality of parenting and psychological adjustment of DI children at age 12. Thirty-seven DI families, 49 adoptive families, and 91 families with a naturally conceived child were compared on standardized interview and questionnaire measures administered to mothers, fathers, children, and teachers. The differences between DI families and the other family types reflected greater expressive warmth of DI mothers toward their children and less involvement in the discipline of their children by DI fathers. The DI children were well adjusted in terms of their social and emotional development. The findings are discussed with respect to the secrecy surrounding DI and the imbalance in genetic relatedness between the parents and the child.  相似文献   
996.
We investigated associations between children's representations of mothers in their play narratives and measures of children's and mother socioemotional adaptation, and explored the development of these representations between the ages of 4 and 5 years. Fifty-one children were interviewed using the MacArthur Story-Stem Battery to obtain their narrative representations of mothers. Positive, Negative, and Disciplinary representation composites were generated. Children who had more Positive and Disciplinary representations and fewer Negative representations had fewer behavior problems and their mothers reported less psychological distress. In addition, 5-year-olds had more Positive and Disciplinary representations and fewer Negative representations did 4-year-olds, and there was moderate stability in individual differences in children's representations of mothers across the 2 ages. The results add an important dimension to research on parent-child relationships—that of children's perspectives on these relationships.  相似文献   
997.
998.
This paper presents findings from a 4-year project that developed and implemented a blended inquiry science and English Language Development (ELD) program in a large urban California school district. The sample included over 2,000 students in Kindergarten through 5th grade. Participating students’ English and science achievement was compared to a similar group of students who were using the district’s established English language development curriculum. Student performance on statemandated English and science assessments were analyzed using Mann–Whitney U tests for overall performance and by number of years of treatment. Modest but statistically significant improvement was found for students who participated in the blended program. Results from this study suggest that restricting instructional minutes for science to provide additional time for ELD and English language arts may be unnecessary. Rather, allowing consistent time for science instruction that incorporates ELD instruction along with inquiry science experiences may provide the authentic and purposeful context students need to develop new language without restricting access to science content.  相似文献   
999.
Pediatric school psychology is a relatively new subspecialty in the field; however, few specific, prescribed roles have been articulated, and fewer have yielded preliminary efficacy data. In this exploratory study, the acceptability and potential efficacy of conjoint behavioral consultation (CBC) as a model for linking families, schools, and pediatric settings to address concerns for children with medical issues were evaluated. Twenty-nine children, their parents, teachers, and consultants were involved in conjoint consultation, a model of cross-system collaboration to address shared concerns of medically referred children. In this structured indirect service delivery model, parents, teachers, and school psychology pediatric consultants worked collaboratively in interdisciplinary problem solving and joint decision making with extensive input regarding medical issues from a developmental pediatrician. Outcome measures included parent and teacher observations of child functioning across home and school settings as a result of consultation-mediated interventions and social validity indices assessing acceptability and consumer satisfaction. Results suggested that CBC is a socially valid procedure for addressing concerns of medically referred children across home and school systems. Both parents and teachers reported the consultation process to be highly acceptable. Preliminary effect size analyses of child outcomes, derived from uncontrolled case study designs, suggest generally positive effects across home and school, although limitations with the methodology preclude conclusive statements. Research is needed to determine the contexts and conditions under which the model is more or less effective using rigorous controlled trials.  相似文献   
1000.
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