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   127289篇
  免费   1871篇
  国内免费   239篇
教育   88306篇
科学研究   13651篇
各国文化   1981篇
体育   10117篇
综合类   173篇
文化理论   1096篇
信息传播   14075篇
  2021年   974篇
  2020年   1675篇
  2019年   2587篇
  2018年   3209篇
  2017年   3431篇
  2016年   3476篇
  2015年   2331篇
  2014年   3187篇
  2013年   27325篇
  2012年   2480篇
  2011年   2918篇
  2010年   2386篇
  2009年   2642篇
  2008年   2509篇
  2007年   2230篇
  2006年   2451篇
  2005年   2428篇
  2004年   3121篇
  2003年   2395篇
  2002年   2239篇
  2001年   2226篇
  2000年   1912篇
  1999年   1740篇
  1998年   1490篇
  1997年   1537篇
  1996年   1706篇
  1995年   1472篇
  1994年   1485篇
  1993年   1480篇
  1992年   1627篇
  1991年   1544篇
  1990年   1532篇
  1989年   1484篇
  1988年   1334篇
  1987年   1260篇
  1986年   1274篇
  1985年   1542篇
  1984年   1365篇
  1983年   1370篇
  1982年   1295篇
  1981年   1209篇
  1980年   1200篇
  1979年   1367篇
  1978年   1263篇
  1977年   1153篇
  1976年   1050篇
  1975年   856篇
  1974年   867篇
  1973年   836篇
  1971年   694篇
排序方式: 共有10000条查询结果,搜索用时 156 毫秒
881.
The authors examined the relationship between stress, adaptive coping, and life satisfaction among college students who reported having a friend or family member with eating disorder symptomatology. A hierarchical regression confirmed the study's hypotheses. Higher stress was linked with less life satisfaction. After stress was controlled, plan coping had a beneficial influence on life satisfaction. College counselors can use these findings when choosing interventions for clients who are close to someone with an eating disorder.  相似文献   
882.
883.
IntroductionWhile early commenting on studies is seen as one of the advantages of preprints, the type of such comments, and the people who post them, have not been systematically explored.Materials and methodsWe analysed comments posted between 21 May 2015 and 9 September 2019 for 1983 bioRxiv preprints that received only one comment on the bioRxiv website. The comment types were classified by three coders independently, with all differences resolved by consensus.ResultsOur analysis showed that 69% of comments were posted by non-authors (N = 1366), and 31% by the preprints’ authors themselves (N = 617). Twelve percent of non-author comments (N = 168) were full review reports traditionally found during journal review, while the rest most commonly contained praises (N = 577, 42%), suggestions (N = 399, 29%), or criticisms (N = 226, 17%). Authors’ comments most commonly contained publication status updates (N = 354, 57%), additional study information (N = 158, 26%), or solicited feedback for the preprints (N = 65, 11%).ConclusionsOur results indicate that comments posted for bioRxiv preprints may have potential benefits for both the public and the scholarly community. Further research is needed to measure the direct impact of these comments on comments made by journal peer reviewers, subsequent preprint versions or journal publications.  相似文献   
884.
Peer harassment is a major social problem affecting children and adolescents internationally. Much research has focused on student‐to‐student harassment from either an individual or a multilevel perspective. There is a paucity of multilevel research on students’ relationships with the classroom teacher. The purpose of this study was to use a socioecological perspective to examine the relationships between individual student‐level characteristics, problematic teacher–student relationships, and student‐reported peer harassment. A total of 1,864 children (50.7% female) aged 8 to 13 years (M = 9.82, SD = 1.24), nested in 27 schools (58.2% public) in Spain, participated in the study. Ninety‐four homeroom teachers reported on teacher–student relationships, and students completed self‐report measures related to peer harassment and teacher–student relationships. Multilevel models showed that relationships between students and teachers exerted a varying degree of influence on classroom levels of peer harassment. Specifically, student‐reported teacher support was associated with diminished student‐reported peer victimization, whereas direct and indirect student‐reported teacher‐to‐student aggression was associated with increased peer victimization. Additionally, student‐reported student‐to‐teacher aggression and teacher‐to‐student aggression were associated with increased student‐reported peer aggression. Teacher‐reported variables at the classroom level, however, contributed little to student‐reported outcomes. Results are discussed in the context of future research on relationships between teachers and students.  相似文献   
885.
886.
887.
888.
889.
890.
Research in Higher Education - Since the turn of the twenty-first century, going to college has become increasingly financially difficult in the United States. Tuition prices continued to rise,...  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