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   259篇
  免费   4篇
教育   207篇
科学研究   15篇
各国文化   4篇
体育   5篇
文化理论   3篇
信息传播   29篇
  2024年   1篇
  2023年   2篇
  2022年   4篇
  2021年   9篇
  2020年   8篇
  2019年   19篇
  2018年   26篇
  2017年   15篇
  2016年   14篇
  2015年   9篇
  2014年   11篇
  2013年   41篇
  2012年   13篇
  2011年   8篇
  2010年   4篇
  2009年   6篇
  2008年   5篇
  2007年   5篇
  2006年   11篇
  2005年   4篇
  2004年   6篇
  2003年   2篇
  2002年   3篇
  2001年   2篇
  2000年   2篇
  1999年   1篇
  1998年   1篇
  1996年   3篇
  1995年   1篇
  1994年   2篇
  1993年   1篇
  1992年   1篇
  1991年   5篇
  1989年   1篇
  1988年   2篇
  1987年   2篇
  1986年   2篇
  1985年   1篇
  1984年   1篇
  1983年   1篇
  1982年   1篇
  1979年   2篇
  1978年   1篇
  1977年   1篇
  1976年   1篇
  1964年   1篇
  1962年   1篇
排序方式: 共有263条查询结果,搜索用时 0 毫秒
71.
Policy debate about global warming has been framed in the public sphere in the manner of most political topics, as a matter of “skeptics” and “supporters,” making it very difficult for many US publics to know what to believe. This essay critically reads a preeminent public policy debate—that of global warming—with a twofold purpose. I first array the extensive commercial and political efforts to manipulate public information about global warming in order to illustrate that this debate is a “disingenuous” or “pseudo-controversy,” which can be seen in the asymmetrical resources, motives, and authority behind the scenes. Second, I ask what institutional and discursive conditions have enabled this moment, in which the ideals of academic freedom and protocols of scientific inquiry hold precarious authority in the public arena, and argue that contemporary critical perspectives on knowledge and truth have been co-opted in public discourse, making it more difficult to intervention in commercial and political efforts to obfuscate and mislead US publics.  相似文献   
72.
    
Different manifestations of the impact of culture on creativity are discussed and illustrated by empirical studies. They include: (i) conceptualisation of creativity on both the explicit and implicit levels; (ii) attitudes towards creativity and values attached to creativity; (iii) channelling creative endeavour through different domains of human activities; and (iv) socialisation processes and educational goals and practices. It is argued that creative expression is a universal human phenomenon that is firmly grounded in culture and has its own profound impact on culture itself. The effects of culture on creativity are presented within an interactive model that, besides culture, also incorporates historical, societal and individual factors. Methodological dilemmas involved in cross-cultural studies of creativity are also discussed.  相似文献   
73.
74.
Keeping track of what needs to be done and where and when and by whom is a common practice in Canadian households. The documentary tools used to coordinate the work of keeping track in everyday life are the focus of this paper. We consider these documentary tools as belonging to genres. On the basis of four in-depth interviews, observation, and photography, we identify four genres common to all participants: check-ins or status reports, lists, reminders, and calendars. We map examples of these genres to show that they are socially and intertextually connected—in genre systems—with institutions and organizations beyond the home. Archivists have much to gain by applying the concept of genre-as-social-action and using ethnographic methods to study personal records from the creator’s perspective. Such approaches provide insight into the contexts within which personal records are created and used, including the intertextual linkages between personal and institutional recordkeeping.  相似文献   
75.
    
Purpose:The study aimed to describe youth time-use compositions,focusing on time spent in shorter and longer bouts of sedentary behavior and physical activity(PA),and to examine associations of these time-use compositions with cardiometabolic biomarkers.Methods:Accelerometer and cardiometabolic biomarker data from 2 Australian studies involving youths 7-13 years old were pooled(complete cases with accelerometry and adiposity marker data,n=782).A 9-component time-use composition was formed using compositional data analysis:time in shorter and longer bouts of sedentary behavior;time in shorter and longer bouts of light-,moderate-,or vigorous-intensity PA;and\"other time\"(i.e.,non-wear/sleep).Shorter and longer bouts of sedentary time were defined as<5 min and>5 min,respectively.Shorter bouts of light-,moderate-,and vigorous-intensity PA were defined as<1 min;longer bouts were defined as≥1 min.Regression models examined associations between overall time-use composition and cardiometabolic biomarkers.Then,associations were derived between ratios of longer activity patterns relative to shorter activity patterns,and of each intensity level relative to the other intensity levels and\"other time\",and cardiometabolic biomarkers.Results:Confounder-adjusted models showed that the overall time-use composition was associated with adiposity,blood pressure,lipids,and the summary score.Specifically,more time in longer bouts of light-intensity PA relative to shorter bouts of light-intensity PA was significantly associated with greater body mass index z-score(zBMI)(β=1.79;SE=0.68)and waist circumference(β=18.35,SE=4.78).When each activity intensity was considered relative to all higher intensities and\"other time\",more time in light-and vigorous-intensity PA,and less time in sedentary behavior and moderate-intensity PA,were associated with lower waist circumference.Conclusion:Accumulating PA,particularly light-intensity PA,in frequent short bursts may be more beneficial for limiting adiposity compared to accumulating the same amount of PA at these intensities in longer bouts.  相似文献   
76.
77.
The Development of Hierarchical Representation of Two-Dimensional Space   总被引:1,自引:0,他引:1  
Adults represent the location of a point in a 2-dimensional space using 2 independent dimensions. They encode location along these dimensions both at a fine-grained level and categorically. In reporting location, they combine and weight the fine-grained and categorical information. In Experiment 1, we found that children as young as 5 years use the same 2 independent dimensions in fine-grained spatial coding of location in a circle as are used by adults—radius and angle. However, categorical coding and hierarchical combination are seen only for radius, at both 5 and 7 years. The adult pattern, where angle as well as radius is coded hierarchically, emerges by 9 years. Experiment 2 shows that there is nothing intrinsically difficult about the categorical coding of angular information; when angle is the only dimension to be encoded, younger children use hierarchical coding. Changes in 2-dimensional hierarchical coding may be due to cognitive load factors and to changes in ability to assign frames of reference.  相似文献   
78.
ABSTRACT

This article focuses on multiracial student experiences using co-created ethnographic data with two students’ spoken word poetry. The students considered their own history, their origins and discovered a complexity – and found that their struggle was not exclusively internal. External expectations of singular categorizations and social understanding of behavior played a role in students’ identity construction. The students exhibited an internalization of expectations, as they reflected on their developing identities in their writing. They also indicated that they found ways to resist the expectations and forms of power. The results further discussions related to the modern understanding of identity fluidity and raises the question of why identity, in the modern context, continues to be seen as fixed. The research enabled students to reflect on the complex nature of identity and present a nuanced picture of their unique identity struggles, and their awareness of the social constructs and expectations of others.  相似文献   
79.
    
In three experiments, we studied the consequences of ejaculation upon the frustrative or contrast response of male rats exposed to reward downshift situations (i.e., surprising changes from 32% to 4% sucrose solutions). Similar to what has been found after treatment with anxiolytic agents, consummatory suppression was partially reversed by previous ejaculations in a second postshift trial (Experiments 2 and 3), such a result not having been obtained in a first postshift trial (Experiment 1). Moreover, the effect of ejaculations upon males' behavior during a second postshift trial was transitory, disappearing when assessed during the third and fourth postshift trials (Experiment 3). These results are in accordance with both Amsel's (1958, 1992) frustration theory and Flaherty's (1996) multistage hypothesis of successive negative contrast; the diverse factors that are known to modulate contrast effects are considered, including an interpretation of the present data in terms of the anxiolytic-like effect of the ejaculation.  相似文献   
80.
This study addresses the effects of negative attainability feedback on the shift from engagement to disengagement from a career goal. It was hypothesized that negative attainability feedback regarding study choice may lead to both goal engagement and goal disengagement and that this relation is mediated by self-efficacy, motivational beliefs, and by the perceived accuracy of feedback. Results confirmed that negative feedback led to goal disengagement and, to a lesser extent, to continued engagement. Perceived accuracy of feedback was an important mediator, as was motivation. Self-efficacy did not predict either goal management strategies.  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