Active recovery of the finger flexors enhances intermittent handgrip performance in rock climbers     

Jiří Baláš  David Giles  Jan Kodejška  Michaela Panáčková  Simon Fryer 《European Journal of Sport Science》2016,16(7):764-772

This study aimed to (1) evaluate the effect of hand shaking during recovery phases of intermittent testing on the time–force characteristics of performance and muscle oxygenation, and (2) assess inter-individual variability in the time to achieve the target force during intermittent testing in rock climbers. Twenty-two participants undertook three finger flexor endurance tests at 60% of their maximal voluntary contraction until failure. Performances of a sustained contraction and two intermittent contractions, each with different recovery strategies, were analysed by time–force parameters and near-infrared spectroscopy. Recovery with shaking of the forearm beside the body led to a significantly greater intermittent test time (↑ 22%, P?P?P?相似文献   

Images of the family: on interviewing young children about their social concepts     

Michaela Ulich  Pamela Oberhuemer 《International Journal of Early Years Education》1993,1(1):13-22

The empirical study explores children's perceptions of the family and family membership. 300 four‐, six‐ and eight‐year‐old children were interviewed with a semi‐structured ‘Family Concept Interview’. Interview strategies and research findings are presented and discussed. Establishing field entry rituals and determining appropriate modes and levels of discourse are important factors for creating an interview situation in which children are continuously attentive and motivated. Findings indicate that children do have a generalised and complex image of the family. The majority construct relatively large families with two or more children; over half the children include grandparents (father and mother)’, but one‐parent‐households are also accepted as ‘a family’, regardless of the child's own family situation. ‘Common residence’ is an important but not a necessary criterion for family membership. The findings show significant age differences concerning some aspects of children's family concepts.  相似文献   

Summation and configuration between and within sensory modalities in classical conditioning of the rabbit     

E. James Kehoe  Amanda J. Horne  Peter S. Horne  Michaela Macrae 《Learning & behavior》1994,22(1):19-26

Three experiments examined “atomistic” and “configurai” processes in stimulus compounding using the rabbit’s conditioned nictitating membrane response. Two conditioned stimuli (CSs) were trained separately and then tested together in a compound. Animals trained with CSs from different modalities—namely, tone and light—showed summation in both acquisition and extinction. That is, the probability of a response to the compound could be predicted by the statistical sum of responding to the CSs. In contrast, animals trained with CSs from the auditory modality, tone and noise, showed a level of responding to the tone + noise compound that was the same as that of the CSs, well under the level predicted by the statistical sum of responding to the CSs. In conclusion, atomistic processes appear to predominate in cross-modal compounding. Configurai processes may occur during compounding within the auditory modality, but atomistic alternatives—namely, common elements and selective attention hypotheses—may be able to explain the results.  相似文献   

One size fits all?: Towards a differentiated regional innovation policy approach     

Franz Tödtling  Michaela Trippl 《Research Policy》2005,34(8):1203-1219

Innovation has moved to the foreground in regional policy in the last decade. Concrete policies were shaped by “best practice models” derived from high-tech areas and well performing regions. These are often applied in a similar way across many types of regions. Here an attempt is made to show that there is no “ideal model” for innovation policy as innovation activities differ strongly between central, peripheral and old industrial areas. In this paper we analyse different types of regions with respect to their preconditions for innovation, networking and innovation barriers. Based on this classification different policy options and strategies are developed.  相似文献   

A novel sleep optimisation programme to improve athletes’ well-being and performance     

Emer Van Ryswyk  Richard Weeks  Laura Bandick  Michaela O’Keefe  Andrew Vakulin  Peter Catcheside 《European Journal of Sport Science》2017,17(2):144-151

Objectives: To improve well-being and performance indicators in a group of Australian Football League (AFL) players via a six-week sleep optimisation programme. Design: Prospective intervention study following observations suggestive of reduced sleep and excessive daytime sleepiness in an AFL group. Methods: Athletes from the Adelaide Football Club were invited to participate if they had played AFL senior-level football for 1–5 years, or if they had excessive daytime sleepiness (Epworth Sleepiness Scale [ESS] >10), measured via ESS. An initial education session explained normal sleep needs, and how to achieve increased sleep duration and quality. Participants (n?=?25) received ongoing feedback on their sleep, and a mid-programme education and feedback session. Sleep duration, quality and related outcomes were measured during week one and at the conclusion of the six-week intervention period using sleep diaries, actigraphy, ESS, Pittsburgh Sleep Quality Index, Profile of Mood States, Training Distress Scale, Perceived Stress Scale and the Psychomotor Vigilance Task. Results: Sleep diaries demonstrated an increase in total sleep time of approximately 20?min (498.8?±?53.8 to 518.7?±?34.3; p?<?.05) and a 2% increase in sleep efficiency (p?<?0.05). There was a corresponding increase in vigour (p?<?0.001) and decrease in fatigue (p?<?0.05). Conclusions: Improvements in measures of sleep efficiency, fatigue and vigour indicate that a sleep optimisation programme may improve athletes’ well-being. More research is required into the effects of sleep optimisation on athletic performance.  相似文献   

Classroom behaviour and academic achievement: how classroom behaviour categories relate to gender and academic performance     

Elin Borg 《British Journal of Sociology of Education》2015,36(8):1127-1148

Latent profile analysis was used to identify different categories of students having different ‘profiles’ using self-reported classroom behaviour. Four categories of students with unique classroom behaviour profiles were identified among secondary school students in Oslo, Norway (n = 1570). Analyses examined how classroom behaviour categories are related to gender and school performance and whether a dual understanding of gender in school is helpful when trying to explain achievement differences as supposed to classroom behaviour categories. Analyses showed that gender was a better predictor of school achievement than classroom behaviour categories, even though the behaviour categories did contribute to the explanation of variance in students’ academic marks above and beyond gender.  相似文献   

Experiencing spiritual aspects outdoors in the winter: a case study from the Czech Republic using the method of systemic constellations     

Ivo Jirásek  Miroslava Jirásková  Petra Majewská  Michaela Bolcková 《British Journal of Religious Education》2017,39(2):122-148

The article focuses on spirituality on two semantic levels: the first one analyses participants’ experiences during a winter expeditionary course on snowshoes and considers the question of whether residing in the winter landscape with a community of other people may acquire a spiritual dimension in spite of the non-religious environment. The second level verifies whether the trans-rational method of systemic constellations may be used as a research tool, that is, as a specific source for data collection (different from other sources and methods). The research applied a phenomenological approach to the analysis of unstructured interviews (n = 12) and constellation insights; the result confirmed indisputably that certain kinds of experiences obtained in a completely non-religious environment (namely, during a winter expedition on snowshoes in the mountains) can be considered spiritual. The answer to the second question is also positive, since the application of systemic constellations results in different data in comparison with their verbal acquisition. Symbolic images that point out the system and its unaccepted elements deepen the understanding of both the individual and the nature of their spiritual experience.  相似文献   

Educational upward mobility – practices of social changes     

Michaela Brockmann 《International Studies in Sociology of Education》2017,26(1):98-100

  相似文献   

The assessment life cycle: A model for analysing institutional e‐assessment development     

Jane McNeil  Michaela Borg  Carmen Tomas 《British journal of educational technology : journal of the Council for Educational Technology》2011,42(2):E21-E24

  相似文献   

Citizen reactions to municipalities’ Instagram communication     

David Perea  Enrique Bonsón  Michaela Bednárová 《Government Information Quarterly》2021,38(3):101579

In this paper, we explore how local governments are using Instagram as a communication tool to engage with their citizens, using data from the municipalities of Andalusia (Spain). We seek to identify the determinants of local government use of Instagram, the determinants of activity in this channel and the determinants of citizen reactions in order to understand the influence of media types (picture, video or album) used in municipality posts, and to understand content type (what the post is about). Instaloader, an open source intelligence (OSINT) tool for Instagram, was applied. It made it possible to automatically extract all posts of the analysed municipalities (14,742 posts). These were later automatically analysed using R, an open source software. It was determined that of the 29 Andalusian local governments with the highest populations, only those that maintain an account on Instagram, totalling 17 municipalities (58.62%), would be part of the final analysis. Our findings demonstrate that when local governments have a high level of debt, they do not maintain and actively use Instagram accounts. We also found that quality of posts’ content is more important than quantity of followers, since there is no significant relationship between citizen reactions and the number of inhabitants of a municipality or the number of followers (audience), while there is a significant negative relationship between the number of posts (activity) and reactions. Our results also highlight that the level of reactions can be stimulated by certain media and content types.  相似文献