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   278篇
  免费   10篇
教育   213篇
科学研究   15篇
各国文化   10篇
体育   10篇
信息传播   40篇
  2022年   1篇
  2021年   1篇
  2020年   6篇
  2019年   15篇
  2018年   20篇
  2017年   16篇
  2016年   12篇
  2015年   15篇
  2014年   13篇
  2013年   59篇
  2012年   12篇
  2011年   5篇
  2010年   8篇
  2009年   6篇
  2008年   5篇
  2007年   12篇
  2006年   1篇
  2005年   9篇
  2004年   1篇
  2003年   2篇
  2002年   6篇
  2001年   3篇
  2000年   1篇
  1999年   3篇
  1998年   1篇
  1997年   2篇
  1996年   3篇
  1994年   5篇
  1993年   5篇
  1992年   4篇
  1991年   5篇
  1989年   3篇
  1988年   3篇
  1987年   3篇
  1986年   3篇
  1985年   2篇
  1984年   2篇
  1983年   1篇
  1982年   1篇
  1979年   3篇
  1978年   1篇
  1977年   1篇
  1976年   1篇
  1971年   1篇
  1970年   1篇
  1968年   1篇
  1917年   1篇
  1897年   1篇
  1892年   2篇
排序方式: 共有288条查询结果,搜索用时 15 毫秒
41.
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   
42.
Water-deprived and nondeprived ducklings were reintroduced to a flock companion which had been allowed to partially satiate itself after 3 h of water deprivation. The drinking and sieving behavior of the partially satiated “reactor” bird was immediately increased above that of similar birds left on their own. However, whether or not the introduced “actor” ducklings were deprived had no consequences for the drinking response of the reactor above that obtained by their introduction. The number of companions introduced also failed to have any effect other than that obtained by their introduction. The increase in sieving was greater when deprived, rather than nondeprived, actors were introduced. These results were discussed in relation to the motivational aspects of sieving behavior and the mechanism of social facilitation.  相似文献   
43.
Inhibitory control, the ability to restrain a prepotent but ineffective response in a given context, is thought to be indicative of a species’ cognitive abilities. This ability ranges from “basic” motoric self-regulation to more complex abilities such as self-control. During the current study, we investigated the motoric self-regulatory abilities of 30 pet dogs using four well-established cognitive tasks – the A-not-B Bucket task, the Cylinder task, the Detour task, and the A-not-B Barrier task – administered in a consistent context. One main goal of the study was to determine whether the individual-level performance would correlate across tasks, supporting that these tasks measure similar components of motoric self-regulation. Dogs in our study were quite successful during tasks requiring them to detour around transparent barriers (i.e., the Cylinder and Detour tasks), but were less successful with tasks requiring the production of a new response (i.e., A-not-B Bucket and A-not-B Barrier tasks). However, individual dog performance did not correlate across tasks, suggesting these well-established tasks likely measure different inhibitory control abilities, or are strongly influenced by differential task demands. Our results also suggest other aspects such as perseveration or properties of the apparatus may need to be carefully examined in order to better understand canine motoric self-regulation or inhibitory control more generally.  相似文献   
44.
This study examined the efficacy of using different types of mobile media apps to increase the receptive and expressive vocabulary development of 3-, 4-, and 5-year-old preschool children living in economically disadvantaged communities. Children and teachers in four Head Start classrooms participated in the quasi-experimental study, which included an 8-week intervention in which the children interacted with one of two types of apps: one classroom used four scaffolding-like vocabulary apps for an average of 1.8 h per day (n?=?16) and one classroom used four open-ended vocabulary apps for an average of 1.3 h per day (n?=?15). Two classrooms served as comparison groups (n?=?18; n?=?14) which used apps that were chosen by the Head Start program with no specific instructional method for approximately 1 h per day. Children’s vocabulary was assessed pre- and post-intervention using the PPVT-4, the EVT-2, and iPad Receptive and Expressive Vocabulary Assessments. Using a repeated measures analysis of variance with split plot analysis, children who used scaffolding-like vocabulary apps performed statistically significantly higher on the PPVT-4 than children who used open-ended vocabulary apps. There were no significant differences between groups on the EVT-2. The study contributed to the literature on teacher instruction of utilizing scaffolding-like apps to increase preschool vocabulary knowledge.  相似文献   
45.
46.
Colleges of Business (COBs) have experienced high growth rates in the past decade and many colleges are imposing minimum grade point average (GPA) requirements for students to enter or remain in the college. A primary reason for this requirement may be the belief that students with high GPAs are more inclined to demonstrate higher‐order cognitive skills (HOCS) than students with low GPAs. It is not clear whether the link is valid. This study hypothesizes that students with high GPAs who are taught in the same way as students with lower GPAs will have higher perceptions of improved HOCS. We conducted an experiment in which students, with varying GPAs, at three large universities primarily used multimedia instructional materials. We obtained the students' perceptions of their improved HOCS from their responses to a survey. A regression analysis of the data reveals that the relationship between GPAs and students' perceived improvement in HOCS is significant (p < .001). We conclude the study by recommending that (a) it is critical to use research methodologies to evaluate perceived and actual learning improvements, (b) COB policies to implement GPA restrictions on admission are worthwhile, and (c) case studies need to be used much more frequently in undergraduate COB classes.  相似文献   
47.
Nearly half a century after it first came into effect, Israel's legal deposit law has been amended to make its provisions in accordance with and appropriate for the digital age. Other considerations guiding legislators were the necessity to adjust the law in response to laws (particularly Basic Laws) passed since the original deposit law was enacted. This paper traces the legislative history of the law through primary documents and compares it to similar laws passed in other countries over the past decade. It concludes that while the deposit of electronic materials was the primary justification for the new legislation, the legislators failed to craft the language of the new Books Act to reflect this goal. While some elements of the new law are a vast improvement over the older legislation, the Books Act is not suitable for meeting the challenges of preservation and documentation of cultural heritage in electronic formats.  相似文献   
48.
49.
Enabling children and young people to act as researchers is increasingly viewed as useful in supporting their increased “participation” within settings where they live, work or receive services. This paper reports upon a project conducted by two educational psychologists (EPs) with two primary school class groups, in which the children and their teachers were provided with direct teaching and guidance to develop and undertake their own school‐based research projects. The work of each class group produced significant developments of educational provision across the whole school, showing that the EPs’ work had directly enabled the children to “make a positive contribution”. In addition, teachers and psychologists observed several social, cognitive and personal benefits to the children brought about by their engagement in the processes of questioning, data gathering, analysis, knowledge generation, and dissemination. The authors emphasise the potentially valuable contribution of EPs in promoting children and young people’s understanding and application of research skills, and in working directly alongside teachers within the classroom. Furthermore, the project represents a successful example of EPs and teachers engaging in joint direct work with children.  相似文献   
50.
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