Short-term heat acclimation prior to a multi-day desert ultra-marathon improves physiological and psychological responses without compromising immune status     

Ashley G. B. Willmott  Mark Hayes  Kirsty A. M. Waldock  Rebecca L. Relf  Emily R. Watkins  Carl A. James 《Journal of sports sciences》2017,35(22):2249-2256

Multistage, ultra-endurance events in hot, humid conditions necessitate thermal adaptation, often achieved through short term heat acclimation (STHA), to improve performance by reducing thermoregulatory strain and perceptions of heat stress. This study investigated the physiological, perceptual and immunological responses to STHA prior to the Marathon des Sables. Eight athletes (age 42 ± 4 years and body mass 81.9 ± 15.0 kg) completed 4 days of controlled hyperthermia STHA (60 min·day^?1, 45°C and 30% relative humidity). Pre, during and post sessions, physiological and perceptual measures were recorded. Immunological measures were recorded pre-post sessions 1 and 4. STHA improved thermal comfort (P = 0.02), sensation (P = 0.03) and perceived exertion (P = 0.04). A dissociated relationship between perceptual fatigue and T_re was evident after STHA, with reductions in perceived Physical (P = 0.04) and General (P = 0.04) fatigue. Exercising T_re and HR did not change (P > 0.05) however, sweat rate increased 14% (P = 0.02). No changes were found in white blood cell counts or content (P > 0.05). Four days of STHA facilitates effective perceptual adaptations, without compromising immune status prior to an ultra-endurance race in heat stress. A greater physiological strain is required to confer optimal physiological adaptations.  相似文献   

An analysis of the value of multiple mentors in formalised elite coach mentoring programmes     

Rebecca Sawiuk  William. G. Taylor  Ryan Groom 《Physical Education & Sport Pedagogy》2017,22(4):403-413

Background: Within the context of sports coaching and coach education, formalised mentoring relationships are often depicted as a mentor–mentee dyad. Thus, mentoring within sports coaching is typically conceptualised as a one-dimensional relationship, where the mentor is seen as the powerful member of the dyad, with greater age and/or experience [Colley, H. (2003). Mentoring for Social Inclusion. London: Routledge].

Aim: The aim of this study was to explore the concept of a multiple mentor system in an attempt to advance our theoretical and empirical understanding of sports coach mentoring. In doing so, this paper builds upon the suggestion of Jones, Harris, and Miles [(2009). “Mentoring in Sports Coaching: A Review of the Literature.” Physical Education and Sport Pedagogy 14 (3): 267–284] who highlight the importance of generating empirical research to explore current mentoring approaches in sport, which in turn can inform meaningful formal coach education enhancement. The significance of this work therefore lies in opening up both a practical and a theoretical space for dialogue within sports coach education in order to challenge the traditional dyadic conceptualisation of mentoring and move towards an understanding of ‘mentoring in practice’.

Method: Drawing upon Kram’s [(1985). Mentoring at Work: Developmental Relationships in Organisational Life. Glenview, IL: Scott Foresman] foundational mentoring theory to underpin a multiple mentoring support system, 15 elite coach mentors across a range of sports were interviewed in an attempt to explore their mentoring experiences. Subsequently, an inductive thematic analysis endeavoured to further investigate the realities and practicalities of employing a multiple mentoring system in the context of elite coach development.

Results: The participants advocated support for the utilisation of a multiple mentor system to address some of the inherent problems and complexities within elite sports coaching mentoring. Specifically, the results suggested that mentees sourced different mentors for specific knowledge acquisition, skills and attributes. For example, within a multiple mentor approach, mentors recommended that mentees use a variety of mentors, including cross-sports and non-sport mentors.

Conclusion: Tentative recommendations for the future employment of a multiple mentoring framework were considered, with particular reference to cross-sports or non-sport mentoring experiences.  相似文献   

Piracy,Geoblocking, and Australian Access to Niche Independent Cinema     

Rebecca Beirne 《Popular Communication》2015,13(1):18-31

Online audiovisual piracy cannot be properly understood if divorced from its context. This article uses the availability of lesbian-focused films in Australia as a lens through which to consider the relationship between online audiovisual piracy and industry geoblocking practices. It is argued that artificial control through internet geoblocking can limit potential global sales by restricting universal availability of certain films. Anti-piracy discourses around lost sales and reduced profits for film industries are complicated by piracy contexts where there is no mechanism for viewers to make legal online purchases. When looking beyond Hollywood, the diverse purposes of independent and minority filmmakers provide a more complex understanding of piracy overall. This article proposes a more nuanced approach to online film piracy that emphasizes context, taking into consideration that pirate culture is formed by an extensive but inchoate network of individuals with diffuse motivations that have differential impacts upon the industry.  相似文献   

Effects of race of examiner and type of reinforcement on the intelligence test performance of lower-class black children     

Francis Terrell  Sandra L. Terrell  Jerome Taylor 《Psychology in the schools》1980,17(2):270-272

This study examined the effects of race of examiner and type of reinforcement upon the WISC-R performance of lower-class black children. A total of 120 black males were selected and assigned to either a white or black examiner to form two groups. Within each group, children were given no reinforcement, tangible reinforcement, traditional social reinforcement, or culturally relevant social reinforcement after each correct response. Children given tangible rewards, regardless of race of examiner, obtained significantly higher scores than did children given no reinforcement or children given traditional social reinforcement. Also, children given culturally relevant social reinforcement by a black examiner obtained significantly higher scores than did children given culturally relevant reinforcement by the white examiner.  相似文献   

‘Am I safe here and do you like me?’ Understanding complex trauma and attachment disruption in the classroom     

Linda O'Neill  Francis Guenette  Andrew Kitchenham 《British Journal of Special Education》2010,37(4):190-197

Elementary and special education teachers and school counsellors currently provide support to children presenting learning disabilities and behavioural problems symptomatic of the more hidden diagnosis of complex trauma resulting from abuse or severe attachment disruption. Specific disorders such as attention deficit/hyperactivity disorder (AD/HD) may be diagnosed in such children, but not the aetiology of complex trauma, resulting in missing information in the development of remedial and behavioural interventions. The evolving field of trauma counselling provides important information to special education teachers and school counsellors who work with children who have experienced trauma. In this review article authors Linda O'Neill of the University of Northern British Columbia (UNBC), Francis Guenette who is a doctoral student at the University of Victoria and Andrew Kitchenham of the University of Northern British Columbia summarise attachment, neurobiological, and complex trauma research that can be used in school settings to understand better the needs of these children. They conclude by suggesting that teachers and school counsellors would benefit from training on the consequences of childhood trauma and attachment disruption to develop interventions that will be effective and to identify what types of behaviours children can control and those they cannot.  相似文献   

A voice in the wilderness: Meetings as ritual in a cross-cultural context     

Dawn Francis 《International journal of qualitative studies in education》2013,26(4):583-601

Drawing on a wider ethnographic study of cross-cultural interaction in a Papua New Guinean tertiary institution, this paper examines the interactions occurring in staff meetings. While the cross-cultural context is important, there are patterns here that are illuminating for all who have participated in meetings in any context. Meetings are framed as ritual: stereotypic, quasi dramatic, repetitive behaviors that persevere and are valued regardless of what is actually achieved. Having access to prestigious forms of knowledge, along with the prerogative to determine which knowledge and discourse types may be legitimately drawn upon in the meeting frame, allows those with power to determine the rules. Perhaps more importantly, it allows them to treat these rules, once normalized, in a more flexible way than less knowledgeable participants. Those who have communication competence, as defined within this frame, not only exercise influence but determine others' ability to do so. Non-participants collude with this in their silence. Collusion sustains existing perceptions of power, knowledge, and competence. If there is a genuine desire for more equitable decision making in meetings, participants might begin by probing the rituals of their meetings.  相似文献   

Pigeons and Programing     

Francis A. Cartier 《College Teaching》2013,61(2):109-111

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Speaking Personally—With Erin Knight     

Daniel T Hickey  Rebecca C Itow  Andi Rehak  Katerina Schenke  Cathy Tran 《The American journal of distance education》2013,27(2):134-138

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The mulberry bird: an adoption story     

Dr Rebecca Kirkbride 《Educational Psychology in Practice》2013,29(4):438-439

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Producing and practising social justice policy in education: A policy trajectory study from queensland,Australia     

Becky Francis 《International Studies in Sociology of Education》2013,23(2):157-172

Recent philosophical debates have questioned the bases of identity politics in educational research and elsewhere, drawing attention to complexity and diversity of identity. These arguments will be briefly rehearsed, with reference to feminist theory. The criticism that one facet of identity (e.g. gender) cannot be analysed in isolation from others has sometimes been addressed via the study of the 'intersection' or 'interaction' of these various facets. However, others have attacked such approaches, maintaining that such aspects of identity are inseparably intermeshed, and beyond analysis. The poststructuralist account of the self and diversity appears to offer an analytical approach which can address such problems, yet poststructuralist theory also problematises many of the fundamental assumptions underlying emancipatory research in education and elsewhere. This article seeks to debate these various issues, with reference to research in schools. It argues the validity of research concerning specific aspects of identity. Drawing on concepts from feminist theory and reader response criticism, it outlines an approach to such work which rejects the dualisms of relativism/realism, similarity/diversity.  相似文献