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   619篇
  免费   5篇
  国内免费   1篇
教育   484篇
科学研究   11篇
各国文化   5篇
体育   35篇
文化理论   5篇
信息传播   85篇
  2022年   4篇
  2021年   5篇
  2020年   11篇
  2019年   10篇
  2018年   21篇
  2017年   19篇
  2016年   26篇
  2015年   15篇
  2014年   19篇
  2013年   169篇
  2012年   20篇
  2011年   23篇
  2010年   18篇
  2009年   19篇
  2008年   23篇
  2007年   16篇
  2006年   15篇
  2005年   13篇
  2004年   15篇
  2003年   12篇
  2002年   15篇
  2001年   9篇
  2000年   6篇
  1999年   7篇
  1998年   7篇
  1997年   6篇
  1996年   14篇
  1995年   12篇
  1994年   10篇
  1993年   4篇
  1992年   13篇
  1991年   4篇
  1990年   5篇
  1989年   4篇
  1988年   3篇
  1987年   3篇
  1986年   4篇
  1985年   3篇
  1984年   4篇
  1983年   3篇
  1982年   2篇
  1980年   8篇
  1979年   2篇
  1978年   1篇
  1974年   1篇
  1973年   1篇
  1966年   1篇
排序方式: 共有625条查询结果,搜索用时 15 毫秒
91.
Objective. The goals of the current article were to test the presence of an association between mothers’ neural activity (measured by frontal cortical alpha asymmetry) and their specific emotions (measured by observed facial expressions) in response to infant distress and the moderation of this relation by mothers’ appraisal processes (measured by sense of parenting efficacy). Design. Mothers of 5- to 8-month-olds (n = 26) watched videos of their own infants expressing distress while their brain activity was recorded via electroencephalogram and their facial expressions were videotaped for later microcoding. Mothers also completed a questionnaire measure of parenting efficacy. Results. Greater neurophysiological withdrawal in response to infant distress videos, indexed by frontal alpha asymmetry, was associated with longer sad and tense expressions in mothers with average or below average parenting efficacy, but not in those with above average efficacy. Conclusions. Previous research showing that patterns of parents’ brain activity in response to child stimuli are associated with parenting behavior often interpret results in relation to parental emotion, but rarely measure specific concurrent emotions. The current study helps fill this gap in the literature by showing that maternal neurophysiological withdrawal (together with parenting efficacy) was associated with simultaneously measured facial expressions of negative emotion in response to infant distress stimuli.  相似文献   
92.
Conceptions of parental authority and ratings of adolescent-parent conflict were assessed in 68 sixth, eighth, and tenth graders and their parents. Boundaries of adolescent personal jurisdiction and conflict over these boundaries were examined. Participants judged the legitimacy of parental authority and rated the frequency and intensity of conflict regarding 24 hypothetical moral, conventional, personal, multifaceted (e.g., containing conventional and personal components), prudential, and friendship issues. Adolescents and parents agreed that parents should retain authority regarding moral and conventional issues. Parents treated multifaceted, friendship, prudential, and personal issues as more contingent on parental authority than did adolescents, based on conventional, prudential, and psychological reasons, whereas adolescents treated these issues as under personal jurisdiction, based on personal concerns. Personal reasoning and judgments increased with age. Multifaceted issues were discussed more than all other issues, but moral and conventional conflicts were more intense than all other conflicts. The findings are discussed in terms of previous research on parental authority and adolescent-parent conflict during adolescence.  相似文献   
93.
Pigeons responded to changeover-key concurrent variable-interval variable-interval reinforcement schedules while there were intervals during which the changeover key was inoperative (no-choice intervals). In Experiment 1, a multiple schedule on the changeover key signaled choice and no-choice intervals. All subjects showed near-perfect discrimination during initial discrimination training and rapid reacquisition of discrimination following contingency reversals. In Experiment 2, the onset of no-choice intervals was unsignaled and contingent on interchangeover time. The temporal distribution of changeover-key responses conformed to the temporal distribution of choice intervals. The results of both experiments suggest that changeover responding is modifiable as a function of its immediate consequences. The results of Experiment 2, in particular, suggest that time or some correlate of time since the last changeover response can determine subsequent changeover behavior.  相似文献   
94.
The positive impact of undergraduate research experiences on students’ post-secondary success is well-documented. However, these conclusions are drawn from undergraduate students who already participate; very little research has explored the pathways by which students enter these experiences. Using data from a multi-institutional survey, we examined students’ reasons for participating and differences across institutions and demographic groups. Overall, students cited social and experiential reasons as key motivators for participation and a perceived lack of research readiness as a key barrier. Differences were also found across academic year. Implications from this study address issues of access, preparation, and institutional policies around undergraduate research.  相似文献   
95.
We report on the development of an after-school and summer-based science, technology, engineering, and mathematics curriculum infused with the arts and social emotional learning content (STEAM SEL). Its design was motivated by theory and research that suggest that STEM education is well-suited for teaching empathy and other emotion-related skills. In this paper, we describe the activities associated with the development and design of the program and the curriculum. We provide expert-ratings of the STEAM and social emotional elements of the program and present instructor and participant feedback about the program’s content and its delivery. Our results revealed that infusing the arts and social emotional learning content into science education created a holistic STEM-related curriculum that holds potential for enhancing young children’s interest in and appreciation for science and its applications. The data also suggested that the program was well-developed and, generally well-executed. However, experts rated the STEAM elements of the program more positively than the SEL elements, especially with regard to sequencing of lessons and integration among the lessons and hands-on activities, indicating that program revisions are warranted.  相似文献   
96.
The authors examined whether math fluency was independent from untimed math and from reading using 314 pairs of school-aged twins drawn from the Western Reserve Reading and Math Projects. Twins were assessed through a 90-min home visit at approximately age 10 and were reassessed in their homes approximately 1 year later. Results suggested that the shared environment and genetics influenced the covariance among math fluency, untimed math measures, and reading measures. However, roughly two thirds of the variance in math fluency was independent from untimed math measures and reading, including reading fluency. The majority of this independent variance was the result of genetic factors that were longitudinally stable across two measurement occasions. These results suggest that math fluency, although related to other math measures, may also be a genetically distinct dimension of mathematics performance.  相似文献   
97.
This study examined whether the longitudinal links between mothers' use of spanking and children's externalizing behaviors are moderated by family race/ethnicity, as would be predicted by cultural normativeness theory, once mean differences in frequency of use are controlled. A nationally representative sample of White, Black, Hispanic, and Asian American families (n = 11,044) was used to test a cross-lagged path model from 5 to 8 years old. While race/ethnic differences were observed in the frequency of spanking, no differences were found in the associations of spanking and externalizing over time: Early spanking predicted increases in children's externalizing while early child externalizing elicited more spanking over time across all race/ethnic groups.  相似文献   
98.
Four graduate students were tasked with creating a real-world solution to a problem faced by the instructional technology masters program in which they were participating. While taking an online course in multimedia instructional product development, part of East Carolina University??s Masters of Science in Instructional Technology degree program, a team of students faced the challenges of being physically separated, lacking some software and hardware tools, and the relatively brief development period of a semester??s time, to produce supplemental instructional content for students new to the masters program. Working from locations scattered throughout North Carolina, the production team found the time and resources, and relied on the strengths of individual team members, to produce an online orientation for students new to the instructional technology masters program.  相似文献   
99.
100.
Photography     
Pamela Jeffcott Parry's Photography Index: A Guide to Reproductions (Westport, Conn.: Greenwood Press, 1979–$25.00)

Hilary Evans' The Art of Picture Research: A Guide to Current Practice, Procedure, Techniques and Resources (Newton Abbot, Y.K.; and North Pomfret, Vt.: David & Charles, 1979—$28.00)

Melissa Milar, ed. 1980 Photographer's Market: Where to Sell Your Photographs (Cincinnati, Ohio: Writer's Digest Rooks, 1979—$12.95)

Photographis '79 (New York: Hastings House, 1979–$49.50)

John Sander's Photography Year Book 1979 (New York: Fountain Press/Hastings House, 1979—$24.95)

Harold E. Edgerton and James R. Killian, Jr.'s Moments of Vision: The Stroboscopic Revolution in Photography (Cambridge, Ma.: MIT Press, 1979—$20.00)

Deborah Turbeville's Wallflower (New York: Congreve Publishing Co, 1978—$27.50)

Robert L. Kerns' Photojournalism: Photography with a Purpose (Englewood Cliffs, N.J.: Prentice-Hall, 1980—$14.95)

Focalguide to Slides by Graham Saxby (New York: Focal/Hastings House, 1979- 46.95, Paper)

Focalguide to Close-Ups by Sidney F. Ray (1978--$6.95, paper)  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