排序方式： 共有11条查询结果，搜索用时 15 毫秒
1.
Angelos Kaissidis-Rodafinos Mark H. Anshel Anne Porter 《Journal of sports sciences》2013,31(4):427-436
The aim of this study was to establish the ways in which coping style and situational appraisals are related to the consistency of using approach and avoidance coping strategies for skilled Australian basketball referees (n = 133) after three game-related stressful events. The events, ‘making a mistake’, ‘aggressive reactions by coaches or players’ and ‘presence of important others’, were determined from previous research on sources of acute stress among basketball officials. Our findings indicated that: referees exhibited consistent avoidance, but not approach, coping styles; they used more avoidance than approach strategies; and they perceived stress to be positively correlated with approach, and negatively associated with avoidance, coping strategies. These findings suggest that individual differences exist in perceptions of stress (i.e. situational appraisals), controllability and coping styles among moderately and highly skilled basketball referees. The implications for teaching cognitive and behavioural strategies for effective coping with acute stress in basketball officiating are discussed. 相似文献
2.
CRABTREE Vincent P. AZORIN-PERIS Vincent ECHIADIS Angelos SMITH Peter R. 《浙江大学学报(A卷英文版)》2007,8(6):916-920
Objective: To study the regulation of blood pulse volume via photoplethysmography (PPG) signal detected from toe, while the lower limb is passively raised in different height positions. Methods: Use a modified non-invasive PPG technique to detect the blood pulse signal on toe with infrared (IR) photo sensor. A protocol consisting of two postures, i.e., supine and 45° reclining, was designed to conduct laboratory trial in this study. During the period of performing the protocol of these postures, the lower limb was passively raised from the heights of 10 cm to 60 cm randomly and individually with sponge blocks underneath the foot. Results: In the supine posture, the higher the foot was passively raised, the more the blood PPG signal decreased. In the 45° reclining posture, the blood PPG signal increased at the beginning and then decreased in the foot height position from 10 cm to 60 cm. In both postures the normalized AC signal changes significantly while the normalized DC signal changes little. Conclusion: The toe PPG signals can obviously indicate the regulated blood volume change with the designated postural procedures due to the heart level position. 相似文献
3.
Theodora Boubonari Angelos Markos Theodoros Kevrekidis 《The Journal of environmental education》2013,44(4):232-251
A structured questionnaire was administered to assess Greek pre-service primary teachers' knowledge, attitudes, and self-reported behavior toward marine pollution issues. Exploratory factor analysis revealed several factors, all demonstrating adequate internal consistency, and showed that pre-service teachers demonstrated a moderate level of knowledge about marine pollution issues, although they also held misconceptions. They scored high or relatively high on all attitude factors, and scored moderately high on individual action and low on collective action. These findings can contribute to the design and implementation of teacher education programs focused on the marine environment and its conservation. 相似文献
4.
Doping use is an ongoing problem in contemporary sports. Despite efforts to detect and control doping, research on its etiology is limited, especially among elite-level athletes. The present study used an integrated social cognition model to examine the predictors of doping intentions. Structured anonymous questionnaires were completed by 1075 Greek adult elite-level athletes (M age = 25 years, SD = 5.89, 36.1% females) from both team and individual sports. Multiple regression and mediation analyses showed that attitudes, normative beliefs, situational temptation, and behavioral control significantly predicted doping intentions. A normative process was identified whereby situational temptation mediated the effects of normative beliefs on intentions. The findings provide the basis for future social cognition research in doping use, and set the framework for the development of evidence-based preventive interventions. 相似文献
5.
Angelos Stefanidis Guy Fitzgerald Steve Counsell 《International Journal of Information Management》2012
There is little conclusive evidence about the state of the IS curriculum in the UK. This paper presents the results of a detailed survey about the provision of Information Systems (IS) undergraduate degree courses in the UK using the newly developed IS 2010 curriculum guidelines as its basis. IS 2010 identifies three main categories of knowledge that underpin the essence of IS as an academic subject: IS Specific Knowledge and Skills, Domain Fundamentals and Foundational Knowledge and Skills. Our desire to offer a holistic and conclusive representation of the curriculum is supported by the development of an IS curriculum survey framework that caters for the mapping of every subject that populates the IS curricula of undergraduate degrees in the UK, including subjects that are generic or are derived from other hierarchical disciplines. 相似文献
6.
Athanasios Mogias Theodora Boubonari Angelos Markos 《The Journal of environmental education》2013,44(4):251-270
Greek pre-service teachers’ level of ocean literacy was assessed using a revised questionnaire concerning ocean content knowledge and an instrument about ocean stewardship. Rasch analyses showed that the items of both measures were well targeted to the sample. Pre-service teachers possessed a moderate knowledge of ocean sciences issues and positive attitudes toward ocean stewardship; they obtained most information on ocean content from the Internet and mass media and less from formal education, nongovernmental organizations, books, and out-of-school settings. Students who mostly preferred the Internet and mass media scored significantly higher on the knowledge questionnaire. The results could contribute to the enhancement of teachers’ ocean literacy. 相似文献
7.
Samar Zutshi Sheena O'Hare Angelos Rodafinos 《The American journal of distance education》2013,27(4):218-227
The aim of this article was to examine the experiences of students who have participated in massive open online courses (MOOCs). The results of an initial Google blog search were narrowed down to a sample of twenty-one blog posts, each of which was written by a MOOC participant. Content analysis was applied to identify and classify blog comments into emergent themes (e.g., the relevance of type and length of course, student demographics, instruction/instructor interactive styles, and factors that impacted on the learning process) to develop a picture of their experiences. Overall, mixed feelings were expressed. Results provided a glimpse of the student experiences, including why students take such courses, what elements of their experience are positive, and what can be improved from the student point of view. 相似文献
8.
Angelos Kissas 《The Communication Review》2013,16(3):222-242
ABSTRACTThis article discusses the mediatization of politics and its theorization as a process of transformation in the making of (political) meaning through three different theses, presented as evolutionist, intended, and imagined transformation. These theses differ from each other not as much on what they describe as meaning-making transformation – the personalization, conversationalization, and dramatization of politics – as on what they consider to be the causes, extent, and consequences of this transformation. By examining their differences, the article argues that mediatization cannot be fully explained with reference either to a single-universal media logic (as in the thesis of evolutionist transformation) or actor-perceived media logics (as in the thesis of intended transformation). It is seen (in the thesis of imagined transformation), instead, as being catalyzed by the imaginary of media omnipresence, the overwhelming sense that media are everywhere, and therefore potential media effects must be anticipated, which intensifies the fusion of public with private spheres of political life. At the same time, this private-public fusion takes place through existing, institutionalized practices of media performativity, such as the performativity of charisma (personalization), ordinariness (conversationalization) and spectacle (dramatization), bearing implications for the exercise of power and democratic practice in our societies. 相似文献
9.
Angelos Markos Theodora Boubonari Athanasios Mogias Theodoros Kevrekidis 《Environmental Education Research》2017,23(2):231-251
The aim of the present study was to respond to the increasing demand for comprehensive tools for the measurement of ocean literacy, by investigating the psychometric characteristics of a Greek version of the Survey of Ocean Literacy and Experience (SOLE), an instrument that assesses conceptual understanding of general ocean sciences content, focusing on the knowledge component. Four hundred twenty-one pre-service primary school teachers participated in a cross-sectional study. The dichotomous Rasch model was used to examine the measurement properties of the SOLE, namely, person-item targeting and separation, reliability, dimensionality and differential item functioning (DIF). Steps were taken to improve the instrument, where any of these attributes were outside acceptable ranges. Results suggested that a modified SOLE showed an adequate fit to the Rasch model, is unidimensional, free of DIF, and is particularly well-suited to the population under study. Our findings suggest that the SOLE constitutes a valuable tool which can be applied to a different cultural context and population. The proposed use of the instrument could contribute to the assessment of the quality of marine education in school-based and non-formal education contexts and to the cross-cultural comparison of ocean literacy, which are prerequisites for the improvement of ocean literacy. 相似文献
10.
Angelos Vlahoyiannis George Aphamis Gregory C. Bogdanis Giorgos K. Sakkas Eleni Andreou Christoforos D. Giannaki 《运动与健康科学(英文)》2021,10(4):387
PurposeThis systematic review aimed to describe objective sleep parameters for athletes under different conditions and address potential sleep issues in this specific population.MethodsPubMed and Scopus were searched from inception to April 2019. Included studies measured sleep only via objective evaluation tools such as polysomnography or actigraphy. The modified version of the Newcastle–Ottawa Scale was used for the quality assessment of the studies.ResultsEighty-one studies were included, of which 56 were classified as medium quality, 5 studies as low quality, and 20 studies as high quality. A total of 1830 athletes were monitored over 18,958 nights. Average values for sleep-related parameters were calculated for all athletes according to sex, age, athletic expertise level, training season, and type of sport. Athletes slept on average 7.2 ± 1.1 h/night (mean ± SD), with 86.3% ± 6.8% sleep efficiency (SE). In all datasets, the athletes’ mean total sleep time was <8 h. SE was low for young athletes (80.3% ± 8.8%). Reduced SE was attributed to high wake after sleep onset rather than sleep onset latency. During heavy training periods, sleep duration and SE were on average 36 min and 0.8% less compared to pre-season and 42 min and 3.0% less compared to in-season training periods, respectively.ConclusionAthletes’ sleep duration was found to be short with low SE, in comparison to the general consensus for non-athlete healthy adults. Notable sleep issues were revealed in young athletes. Sleep quality and architecture tend to change across different training periods. 相似文献