全文获取类型
收费全文 | 4176篇 |
免费 | 381篇 |
国内免费 | 1篇 |
专业分类
教育 | 3868篇 |
科学研究 | 75篇 |
各国文化 | 114篇 |
体育 | 76篇 |
综合类 | 1篇 |
文化理论 | 19篇 |
信息传播 | 405篇 |
出版年
2022年 | 15篇 |
2021年 | 48篇 |
2020年 | 73篇 |
2019年 | 154篇 |
2018年 | 171篇 |
2017年 | 202篇 |
2016年 | 148篇 |
2015年 | 191篇 |
2014年 | 219篇 |
2013年 | 1177篇 |
2012年 | 161篇 |
2011年 | 183篇 |
2010年 | 182篇 |
2009年 | 150篇 |
2008年 | 180篇 |
2007年 | 113篇 |
2006年 | 96篇 |
2005年 | 104篇 |
2004年 | 94篇 |
2003年 | 50篇 |
2002年 | 43篇 |
2001年 | 60篇 |
2000年 | 50篇 |
1999年 | 51篇 |
1998年 | 33篇 |
1997年 | 27篇 |
1996年 | 44篇 |
1995年 | 44篇 |
1994年 | 24篇 |
1993年 | 27篇 |
1992年 | 34篇 |
1991年 | 22篇 |
1990年 | 43篇 |
1989年 | 22篇 |
1988年 | 23篇 |
1987年 | 26篇 |
1986年 | 14篇 |
1985年 | 20篇 |
1984年 | 19篇 |
1983年 | 26篇 |
1982年 | 18篇 |
1981年 | 9篇 |
1980年 | 11篇 |
1979年 | 10篇 |
1978年 | 11篇 |
1977年 | 9篇 |
1976年 | 8篇 |
1974年 | 9篇 |
1971年 | 8篇 |
1969年 | 10篇 |
排序方式: 共有4558条查询结果,搜索用时 15 毫秒
181.
Relationship Reciprocation Modulates Resource Allocation in Adolescent Social Networks: Developmental Effects 下载免费PDF全文
Stephanie Burnett Heyes Yeou‐Rong Jih Per Block Chii‐Fen Hiu Emily A. Holmes Jennifer Y. F. Lau 《Child development》2015,86(5):1489-1506
Adolescence is characterized as a period of social reorientation toward peer relationships, entailing the emergence of sophisticated social abilities. Two studies (Study 1: N = 42, ages 13–17; Study 2: N = 81, ages 13–16) investigated age group differences in the impact of relationship reciprocation within school‐based social networks on an experimental measure of cooperation behavior. Results suggest development between mid‐ and late adolescence in the extent to which reciprocation of social ties predicted resource allocation. With increasing age group, investment decisions increasingly reflected the degree to which peers reciprocated feelings of friendship. This result may reflect social‐cognitive development, which could facilitate the ability to navigate an increasingly complex social world in adolescence and promote positive and enduring relationships into adulthood. 相似文献
182.
183.
184.
Martine Poirier Michle Dry Jean Toupin Pierrette Verlaan Jean‐Pascal Lemelin Jadzia Jagiellowicz 《Psychology in the schools》2015,52(4):403-418
There is limited empirical research on the correlates of conduct problems (CP) and depression comorbidity during childhood. This study investigated 479 elementary school children (48.2% girls). It compared children with comorbidity to children with CP only, depression only, and control children on individual, academic, social, and family characteristics. The study also analyzed gender differences in the associations between correlates and comorbidity. Multinomial logistic regression results revealed that children with CP and depression had higher levels of anxiety and more school difficulties than children with CP only, more social difficulties and more severe attention deficit and hyperactivity disorder (ADHD) symptoms than children with depression only, and more difficulties in all domains than control children. Girls with CP and depression presented a particularly negative profile, including lower school abilities than CP and control girls, and lower social skills and more severe ADHD symptoms than control girls. Implications for evaluation and intervention planning are discussed. 相似文献
185.
186.
Job satisfaction based on familial and institutional factors was explored for 157 female counselor educators. Results indicate that female associate professors had lower levels of intrinsic rewards domain after controlling for institutional type. Parental responsibility and partnership status were equivocal, with significant interaction effects after controlling for Carnegie Classification. 相似文献
187.
Ashley Lewis Presser Margaret Clements Herbert Ginsburg Barbrina Ertle 《Early education and development》2015,26(3):399-426
Research Findings: Big Math for Little Kids (BMLK) is a mathematics curriculum developed for use with 4- and 5-year-old children. To investigate the BMLK curriculum's effect on children's mathematics knowledge, this cluster-randomized controlled trial randomly assigned child care centers to provide mathematics instruction to children, using either the BMLK mathematics curriculum or the centers’ business-as-usual curriculum, over a 2-year period when children were in prekindergarten and kindergarten. Participants in the study were 762 children and their teachers at 16 publicly subsidized child care centers. The study assessed children's mathematics knowledge using the Early Childhood Longitudinal Study, Birth Cohort (ECLS-B), Direct Mathematics Assessment, a measure of young children's mathematics knowledge that is not aligned with the curriculum. The ECLS-B scores of children in the BMLK group increased significantly more than did those of children in the comparison group. The study also included exploratory analyses to examine whether children in the BMLK group demonstrated evidence of improved mathematical language. Practice or Policy: These results indicate that the BMLK curriculum, which is designed to help teachers use play-based, developmentally appropriate mathematics instruction, has a positive impact on young children's mathematics knowledge as measured by a general mathematics assessment that is not aligned with the curriculum. 相似文献
188.
189.
This article presents an account of the Environment and School Initiatives (ENSI) project. The philosophical basis of the project is outlined, and case studies from within the project provided as a basis for a consideration of some current issues in the field. It is concluded that one of the distinctive features of the ENSI project is its encouragement of praxiological, action research‐based approaches to curriculum and professional development. The case studies of ENSI activities suggest that some of the more conventionally prescribed characteristics such as agreed sets of goals and professional competencies might need to be revisited. 相似文献
190.
Paz Surez‐Coalla Marta lvarez‐Caizo Fernando Cuetos 《Journal of Research in Reading》2016,39(3):292-311
In order to read fluently, children have to form orthographic representations. Despite numerous investigations, there is no clear answer to the question of the number of times they need to read a word to form an orthographic representation. We used length effect on reading times as a measure, because there are large differences between long and short words for unknown words, differences that disappear when reading frequent words. Two lists of new words (half short and half long) were presented to 102 second‐grade to sixth‐grade Spanish children, to be read aloud six times. One of the lists was presented as part of a story and the other in isolation. Comparison of the length effect at the first and sixth exposure showed large differences between short and long words in the first presentation and small differences at the sixth presentation, indicating that Spanish children develop representations of words after just a few repetitions. 相似文献