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   65篇
  免费   2篇
教育   45篇
科学研究   2篇
各国文化   2篇
体育   8篇
文化理论   1篇
信息传播   9篇
  2022年   2篇
  2021年   2篇
  2020年   5篇
  2019年   7篇
  2018年   3篇
  2017年   8篇
  2016年   3篇
  2015年   2篇
  2014年   4篇
  2013年   12篇
  2012年   3篇
  2011年   3篇
  2010年   1篇
  2008年   1篇
  2007年   2篇
  2005年   2篇
  2004年   1篇
  2003年   1篇
  2002年   1篇
  1995年   2篇
  1993年   1篇
  1985年   1篇
排序方式: 共有67条查询结果,搜索用时 16 毫秒
21.
This study examines the materials of a contemporary pictorial artwork, belonging to the Macedonian Museum of Contemporary Art in Thessaloniki (Greece), and needing conservation. The combined use of micro-FTIR and micro-Raman spectroscopy allowed the identification of almost all painting materials. Moreover, the stability of a series of synthetic pigments towards accelerated ageing is investigated in applications using the contemporary binding medium styrene-acrylic copolymer. The pigments in question are: Hansa yellow PY3 and PY74, quinacridone PV19 and PR122, naphthol AS PR112, phthalocyanine green PG7 and blue PB15, dioxazine PV37, van Dyck brown PBk11, ivory black PBk9, and titanium dioxide PW6. The organic pigments were applied alone or mixed with titanium dioxide, in rutile form or as a mixture of rutile/anatase. The experimental swatches were subjected to ageing tests, and subsequently studied as to colour changes by means of colorimetric measurements, and as to the molecular structure differentiations by infrared spectroscopy in reflectance mode. The ageing tests included exposure to high temperature and humidity (90 °C, 60% RH) and to ultraviolet radiation (350 nm, 30 °C and 50% RH, with a substantial temperature increase at 90 °C for 3 days). The greater colour difference is caused by high temperature and humidity, whereas paint layers containing TiO2, and especially the mixture of the forms rutile/anatase, prove very susceptible to ultraviolet radiation, demonstrating a significant colour difference and extended molecular changes.  相似文献   
22.
Courses: Communication Theory, Nonverbal Communication, Public Speaking

Objective: At the end of this activity, students should be able to define key components of expectancy violations theory and apply the theory to analyze violations that occurred in Clint Eastwood’s speech at the 2012 Republican National Convention.  相似文献   

23.
In lower-income countries students face an important challenge that has not been well documented: selective teacher attention. In classes with many low-income students, teachers may concentrate on those few who can perform and neglect those who require more help. The latter may fail to learn, attend school less often, and eventually drop out. However, social promotion policies may keep them enrolled during periods of sporadic attendance. This phenomenon has been observed informally in various countries, but only one study, conducted in Albania, has reported actual data. It found that many teachers overestimated the number of students who could follow the topics presented; they did predict that one third would be unable to answer questions but made no efforts to remedy knowledge gaps. Teachers of upper primary classes tended to give little guidance or attention to failing students but gave them passing grades until they dropped out. The article reveals the urgent need to study in detail how this phenomenon arises and to develop strategies to reduce it in the countries or areas where it is prevalent.  相似文献   
24.
The dynamics and culture of families are central to individual and community sport and physical activity participation. This research project examined the lived experiences and day-to-day realities of the London 2012 Olympics from the perspectives of five families in the East Midlands region of England. The aims of the project were to assess the influence the Games had on shaping family sports participation, influencing social and health relationships within the families through sports and reactions to the 2012 Olympics. The study was conducted through the generation of rich qualitative data from pre- and post-Games interviews as well as production of video diary data by the families and young people themselves to gather micro-level information on the realities of ‘legacy’ for families. Findings from this research project illustrate that prior parental socialisation into sport shaped current attitudes to legacy and children and mothers and fathers had mixed reactions to the actual presence of legacy. There are also clear sports development challenges around accessibility, cost, project design, the non-family-friendly nature of some schemes present during the potential consumption of legacy that have consequences for future research in this embryonic area. Implications from the study include the need to locate the family as a more central concern for policy makers in sports development practice. The study has questioned the assumed virtuous legacy of the London 2012 Games from the perspective of families on a day-to-day micro-level. Instead, a far more complex and diverse picture from the perspective of the family has been presented that requires further critical research on this little explored topic of policy and practice in sports development.  相似文献   
25.
Specializations: science education, educational computing, science teacher education.  相似文献   
26.
An increase in the number of students entering higher education has intensified the need for targeted strategies to support a wider range of student requirements. Current research suggests that emotional intelligence (EI) may be associated with academic success, progression and retention in university students but the use of EI screening as a prospective measure of success requires further investigation. This study evaluates the utility of prospective EI screening to predict progression rates, mean grades, attendance and online engagement in a sample of first-year undergraduate students enrolled on the same degree programme (N = 358). A supportive text messaging intervention was employed during potentially stressful periods of the academic year with a subsection of participants (n = 60) who demonstrated low total EI scores relative to the cohort. Results showed no effects of EI classification on progression rates, mean grades, attendance or online engagement (all p > 0.418). Alternatively, the text messaging intervention was associated with significant improvements compared with a matched control group for progression rates (p = 0.027), mean grades (p = 0.026) and attendance (p = 0.007). The frequency of access to the virtual learning environment also tended to be higher in the intervention group compared with the control group (p = 0.059). In conclusion, this study did not identify any benefits of EI screening as a prospective indicator of student success but provides encouraging indications that a text messaging support intervention could help to improve progression rates, mean grades, attendance and online engagement in first-year undergraduate students. Further research is warranted to develop these proof-of-concept findings.  相似文献   
27.
During the twentieth century, the socio-legal status of the child changed dramatically. The adoption of three international treaties specific to the rights of the child – namely, the Geneva Declaration (1924), the United Nations Declaration of the Rights of the Child (1959) and the United Nations Convention on the Rights on the Child (1989) – increasing at each stage the number and different types of rights, is a remarkable illustration of this state of fact. National socio-legal developments have, of course, greatly inspired the authors of these treaties. However, the rights of the child assumed a new dimension in intergovernmental and non-governmental organisations, exchange platforms par excellence. This article seeks a better understanding of the circulation of children’s rights during the twentieth century, within the three above mentioned treaties. From an interdisciplinary and transnational perspective, the study aims to analyse the multiple facets of children’s rights and the origins of non-domestic influences in this international process. The article appraises the role of international and intergovernmental organisations. Based on archival data, it identifies the concepts, the institutions, the agents and the contexts that influenced the evolution of children’s rights. It shows how the genesis, the diffusion and the promotion of international treaties, as well as their subsequent regimes, structured the circulation of children’s rights.  相似文献   
28.
Mothering can be particularly demanding for single women who are more vulnerable to a variety of risks ranging from economic hardship to poor psychological functioning. These risks place their children at higher risk of experiencing maladjustment. Examining factors that contribute to the well‐being of single mothers and, in turn, their parenting may be one of the most effective ways of contributing to children's adjustment. This article highlights two factors, perceived social support and specific internal resources, that (a) substantially contribute to single mothers’ well‐being, (b) are linked to positive parenting behaviors, and (c) are amenable to change. The authors highlight the current research in these focus areas and explore how these two particular risk modifiers have potential to be changed via behavioral interventions.  相似文献   
29.
Primary objective: The aim of this study was to explore physical activity (PA) amongst children and young people with Down syndrome (DS). Method and procedures: The youth physical activity promotion model (YPAP) was used to inform semi-structured interviews to explore PA of children and young people with DS. Participants were three males and five females, aged between 6 and 21?years (16.38?+?5.04?years (mean?+?SD)) who had been diagnosed with the condition DS. Dyadic interviews were conducted with the participant and their parent(s). The interviews were recorded and transcribed, and inductive and deductive analyses of the data were completed. Main outcomes and results: The results were structured around the YPAP Model’s key themes included: enabling factors (seasonal variation, transport, type of activity and independence); predisposing factors (enjoyment, social interaction, dislikes of PA, following instructions, and understanding of PA); reinforcing factors (support and opportunities, parents, and care providers); and barriers to PA engagement (ear problems). Conclusion: The children and young people with DS in the study typically only engaged in fun, unstructured activities. Key facilitators for PA participation were social interactions and parental support. Increasing the level of independence for people with DS within adolescence may have beneficial effects for PA participation in later life.  相似文献   
30.
Gait retraining using visual biofeedback has been reported to reduce impact loading in runners. However, most of the previous studies did not adequately examine the level of motor learning after training, as the modified gait pattern was not tested in a dual-task condition. Hence, this study sought to compare the landing peak positive acceleration (PPA) and vertical loading rates during distracted running before and after gait retraining. Sixteen recreational runners underwent a two-week visual biofeedback gait retraining program for impact loading reduction, with feedback on the PPA measured at heel. In the evaluation of PPA and vertical loading rates before and after the retraining, the participants performed a cognitive and verbal counting task while running. Repeated measures ANOVA indicated a significant interaction between feedback and training on PPA (F = 4.642; = 0.048) but not vertical loading rates (F > 1.953; > 0.067). Pairwise comparisons indicated a significantly lower PPA and vertical loading rates after gait retraining (< 0.007; Cohen’s > 0.68). Visual feedback after gait retraining reduced PPA and vertical loading rates during distracted running (< 0.033; Cohen’s > 0.36). Gait retraining is effective in lowering impact loading even when the runners are distracted. In dual-task situation, visual biofeedback provided beneficial influence on kinetics control after gait retraining.  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