What do coaches orchestrate? Unravelling the ‘quiddity’ of practice     

Robyn L. Jones  Lars Tore Ronglan 《Sport, Education and Society》2018,23(9):905-915

The general purpose of this article is threefold. Firstly, it is to further the notion of coaching as orchestration through developing insight into precisely how and what coaches orchestrate. Secondly, it is to firmly position coaching as a relational practice, whilst thirdly it is to better define coaching’s complex nature and how it can be somewhat ordered. Following an introduction where the purpose and value of the article are outlined, we present the reflective method of critical companionship through which we explored and addressed the aforementioned purposes. The case for the quiddity, or the ‘just whatness’ (i.e. the inherent nature or essence) of coaching as involving complex, relational acts which can be somewhat explained through recourse to the developing theory of orchestration is subsequently made. In doing so, two precise examples of how we as coaches orchestrate sporting practice are presented. The article concludes with both a summary of the principal argument(s) made, and some reflective considerations for future directions.  相似文献   

Influence of different attentional focus on EMG amplitude and contraction duration during the bench press at different speeds     

Joaquin Calatayud  Jonas Vinstrup  Markus D. Jakobsen  Emil Sundstrup  Juan Carlos Colado  Lars L. Andersen 《Journal of sports sciences》2018,36(10):1162-1166

The purpose of this study was to investigate whether using different focus affects electromyographic (EMG) amplitude and contraction duration during bench press performed at explosive and controlled speeds. Eighteen young male individuals were familiarized with the procedure and performed the one-maximum repetition (1RM) test in the first session. In the second session, participants performed the bench press exercise at 50% of the 1RM with 3 different attentional focuses (regular focus on moving the load vs contracting the pectoralis vs contracting the triceps) at 2 speed conditions (controlled vs maximal speed). During the controlled speed condition, focusing on using either the pectoralis or the triceps muscles increased pectoralis normalized EMG (nEMG) by 6% (95% CI 3–8%; p = 0.0001) and 4% nEMG (95% CI 1–7%; p = 0.0096), respectively, compared with the regular focus condition. Triceps activity was increased by 4% nEMG (95% CI 0–7%; p = 0.0308) at the controlled speed condition during the triceps focus. During the explosive speed condition, the use of different focuses had no effect. The different attentional focus resulted in comparable contraction duration for the measured muscles when the exercise was performed explosively. Using internal focus to increase EMG amplitude seems to function only during conditions of controlled speed.  相似文献   

Improving Achievement Using Digital Pedagogy: Impact of a Research Practice Partnership in New Zealand     

Rebecca Jesson  Stuart McNaughton  Aaron Wilson  Tong Zhu  Victoria Cockle 《Journal of Research on Technology in Education》2018,50(3):183-199

This present study reports the impact of a research–practice partnership among nine collaborating schools and researchers in Auckland, New Zealand. The goals of the partnership were to refine digital instruction in ways that would result in improved learning processes and achievement. The partners employed a design-based research approach to iteratively develop and test changes to the pedagogy. Results indicate moderate to large effect sizes in writing, and small effect sizes in reading and mathematics. Results also indicate increasing effects over time in reading and writing, but not in mathematics. Educational effects included greater use of discussions by teachers and greater use of open-ended activity types. These outcomes are discussed in relation to features of the partnership as well as digital pedagogy.  相似文献   

Is there a specific relationship between childhood sexual and physical abuse and repeated suicidal behavior?     

Ystgaard M  Hestetun I  Loeb M  Mehlum L 《Child abuse & neglect》2004,28(8):863-875

OBJECTIVE: Studies show that childhood sexual and physical abuse predict repeated suicide attempts and self-mutilation. Little is known about the importance of sexual and physical abuse when compared to other severe childhood adversities with respect to chronic suicidal behavior. METHOD: Seventy-four subjects, 65% of whom were women, consecutively admitted to a general hospital after having made a suicide attempt, were interviewed as part of the intake interview about prior suicide attempts and self-mutilation and received DSM-IV diagnoses. Sexual abuse, physical abuse, neglect, antipathy from parents, loss of parents, and severe discord in the family before the age of 18, were covered by the Childhood Experience of Care and Abuse (CECA) interview schedule. RESULTS: The prevalence of severe sexual abuse was 35%, severe physical abuse 18%, neglect 27%, antipathy 34%, loss of caregiver 37% and exposure to family violence 31%. Physical and sexual abuse were independently associated with repeated suicide attempts when controlling for the effects of the other childhood adverse factors. No other childhood adversity was related to chronic suicidal behavior. The odds ratio of exposure to sexual or physical abuse was highest among those who both repeated suicide attempts and self-mutilated. CONCLUSION: Physical and sexual abuse are significantly and independently associated with repeated suicidal behavior.  相似文献   

The effects of search tool type and cognitive style on performance during hypermedia database searches     

Lars F. Leader  James D. Klein 《Educational technology research and development : ETR & D》1996,44(2):5-15

This study investigated the effects of search tools and learner cognitive styles on performance in searches for information within a hypermedia database. Seventy-five students in a university English as a Second Language (ESL) program were blocked for field dependence and assigned to one of four treatments: browser, index/find, map, and all tools. Subjects searched the hypermedia database, EarthQuest, for facts to answer practice and posttest questions on science topics. Results revealed a significant interaction between search tool and cognitive style. Field-independent learners performed significantly better than field-dependent learners under the index/find and map treatments. Subjects in the four treatment groups accessed information from the database differently. Furthermore, cognitive style was significantly related to achievement, tool use, and attitude. Implications for the design and instructional use of hypermedia databases are provided.  相似文献   

Learning for the professions: lessons from linking international research projects     

Madeleine Abrandt Dahlgren  Anna Reid  Lars Owe Dahlgren  Peter Petocz 《Higher Education》2008,56(2):129-148

At the core of higher education is the experience of students whose focus for learning is often directed towards their future employability. In this paper, we explore the intersections between two large international research projects involving over 500 students. Interviews with students yielded their conceptions of learning and work in specific discipline and professional areas. Analysis of the Swedish and Australian data sets showed the important interplay between students’ individual ideas about learning and future work with their workplace. A meta-analysis of the two projects highlights the utility of higher education for students’ future working life and suggests ways in which institutions and policy makers can critique current practice in a way that will incline curriculum and teaching development towards professional formation.  相似文献   

The Social Ecology of Adolescent Alcohol Misuse     

Susan T. Ennett  Vangie A. Foshee  Karl E. Bauman  Andrea Hussong  Li Cai  Heathe Luz McNaughton Reyes  Robert Faris  John Hipp  Robert DuRant 《Child development》2008,79(6):1777-1791

A conceptual framework based on social ecology, social learning, and social control theories guided identification of social contexts, contextual attributes, and joint effects that contribute to development of adolescent alcohol misuse. Modeling of alcohol use, suggested by social learning theory, and indicators of the social bond, suggested by social control theory, were examined in the family, peer, school, and neighborhood contexts. Interactions between alcohol modeling and social bond indicators were tested within and between contexts. Data were from a longitudinal study of 6,544 students, 1,663 of their parents, and the U.S. Census. All contexts were uniquely implicated in development of alcohol misuse from ages 11 through 17 years, and most alcohol modeling effects were contingent on attributes of social bonds.  相似文献   

Sustainable development education in Scottish schools: the Sleeping Beauty syndrome     

Marie Jeanne McNaughton 《Environmental Education Research》2007,13(5):621-638

This paper reviews and discusses the development of Sustainable Development Education (SDE) policy within the context of the Scottish formal school system. The focus is on the progress, and lack thereof, of implementation of SDE in schools in the light of some of the key curriculum documents and associated political decisions and advisory reports. The period of the review dates from 1993, which saw the publication of a report that was regarded as the seminal document for the development of environmental education in Scotland, to 2007 and the Scottish Executive's proposals for SDE in the light of curriculum reform for schools for the 21st century. The paper employs, loosely, the metaphor of the Sleeping Beauty to tell the story of SDE in Scotland in three parts: the story's three phases of emergence, obscurity and re‐emergence might serve as a useful metaphor, here.  相似文献   

Hospital nurses’ information retrieval behaviours in relation to evidence based nursing: a literature review          下载免费PDF全文

Berit Elisabeth Alving  Janne Buck Christensen  Lars Thrysøe 《Health information and libraries journal》2018,35(1):3-23

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A Review of the Physics and the Building Science which Underpins Methods of Low Energy Storage of Museum and Archive Collections*     

Tim Padfield  Morten Ryhl-Svendsen  Poul Klenz Larsen  Lars Aasbjerg Jensen 《文物保护研究》2018,63(5):209-215

ABSTRACT

The need to keep things cool for durability should be the single most powerful influence on storage design. The simplest temperature control is to moderate the outside temperature by a combination of thermal insulation and heat capacity. The low energy storage building is a lightweight, thermally insulated, airtight building put on top of an uninsulated floor slab laid directly on the ground. The thermal insulation is calculated to even out the daily temperature cycle but to allow an annual temperature cycle which is about half the amplitude, but much smoother, than the annual temperature cycle outside. The winter temperature inside will nearly always be above ambient and so will maintain a moderate RH without need for either humidification or dehumidification. The temperature inside in summer will be below ambient and thus will force dehumidification of the infiltrating air. However, the airtightness of the building allows intermittent dehumidification with low energy consumption, less than one kWh/m³ per year. There now exist enough buildings designed on this principle to reassure curators that highly valued collections can be stored in a space with a gentle temperature cycle and with an RH stability as good as air-conditioning usually achieves.  相似文献