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Ned Brophy-Williams Matthew William Driller Cecilia Mary Shing James William Fell Shona Leigh Halson 《Journal of sports sciences》2015,33(13):1403-1410
The purpose of this investigation was to measure the interface pressure exerted by lower body sports compression garments, in order to assess the effect of garment type, size and posture in athletes. Twelve national-level boxers were fitted with sports compression garments (tights and leggings), each in three different sizes (undersized, recommended size and oversized). Interface pressure was assessed across six landmarks on the lower limb (ranging from medial malleolus to upper thigh) as athletes assumed sitting, standing and supine postures. Sports compression leggings exerted a significantly higher mean pressure than sports compression tights (P < 0.001). Oversized tights applied significantly less pressure than manufacturer-recommended size or undersized tights (P < 0.001), yet no significant differences were apparent between different-sized leggings. Standing posture resulted in significantly higher mean pressure application than a seated posture for both tights and leggings (P < 0.001 and P = 0.002, respectively). Pressure was different across landmarks, with analyses revealing a pressure profile that was neither strictly graduated nor progressive in nature. The pressure applied by sports compression garments is significantly affected by garment type, size and posture assumed by the wearer. 相似文献
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In two experiments, saccharin (CS) and lithium chloride (US) were paired in a context consisting of specific visual, auditory, tactual, and olfactory cues. The saccharin aversion was then extinguished in a context free from conditioning-context cues. Later, saccharin preference tests were given in the presence and absence of these cues. The results indicated that the background cues of the conditioning trial controlled the amount of saccharin drunk on extinction trials, and, furthermore, that extinction of the taste aversion was context specific; i.e., groups given extinction trials in a different (from conditioning) context retained their saccharin aversion in the conditioning context only. The results indicate an important role played by the exteroceptive context in taste-aversion conditioning. 相似文献
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Early school leaving is an international concern. Previous research indicates that the school context contributes to early school leaving. This systematic review is aimed to gather marginalised young peoples’ perceptions concerning contextual factors that contributed to and interfered with their decisions to stay in alternative education. Twenty-three databases and reference lists of reviews were searched, eliciting 1586 studies, which were then screened. Data from 24 mixed-methods studies that met the inclusion criteria were extracted and synthesised. Findings suggested that alternative schools which provided a sanctuary for students increased student engagement. Schools were sanctuaries when they offered physical, emotional and psychological safe spaces; fostered a sense of community; enabled students to affirm their racial/ethnic pride and employed flexible behavioural supports. Implications for practice and research are discussed. 相似文献
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John P. Dougherty Ned F. Kock Cheryl Sandas Robert M. Aiken 《Education and Information Technologies》2002,7(2):137-154
Information technology holds the promise of increased productivity. However, rapidly evolving tools require a professional able to incorporate these tools into their careers effectively, which signals the need for IT curriculum development initiatives that incorporate the use of complex, domain-specific IT applications in specific professional fields. This paper reports on a study that addresses this need, by developing, assessing and refining a curriculum development framework. The Information Technology Fluency (ITF) framework is a methodology for constructing components (case studies) for inclusion into existing or newly proposed courses to help students develop the skills needed for this challenge. Results obtained using the framework are reported, compared to similar work at a different institution, and used to suggest improvements to the framework. 相似文献
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Valerie Brett Martina Mullally Bill O'Gorman Nerys Fuller-Love 《Action Learning: Research and Practice》2012,9(2):125-143
Developing sustainable learning networks for entrepreneurs is the core objective of the Sustainable Learning Networks in Ireland and Wales (SLNIW) project. One research team drawn from the Centre for Enterprise Development and Regional Economy at Waterford Institute of Technology and the School of Management and Business from Aberystwyth University has contributed to the understanding of how to create sustainable business learning networks for entrepreneurs. The research findings are attributed to action research by the conduction of two separate cycles in the forum of research projects. The first cycle, called Female Entrepreneurs in Ireland and Wales, produced findings that were reflected on and investigated further by the research team through the establishment of the second cycle named SLNIW. This paper discusses the two action research cycles through the action sets of planning, action, observing and reflecting and the contribution of the development of understanding and practice of networking for entrepreneurs through the production of guidelines for establishing sustainable learning networks. 相似文献
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This article argues that two significant recent influential historical novels about the Holocaust, Hitler’s Daughter (1999) and The Boy in the Striped Pyjamas (2006), reprise the genre traits of the Bildungsroman or novel of development and can be regarded as remarkably effective in engaging an active reader. Both novels, intended for children and younger adolescent readers, are focused on initially sequestered child protagonists from a perpetrator culture who are unable to fully understand their circumstances but undergo formative experiences by leaving ‘home’, legible both as a physical domicile and a site of indoctrination and repression. As they journey away from a limited conception of biological family the novel’s protagonists are able to reject constricting modes of social conditioning that repress authentic self-expression, curiosity, and impartial ethical judgment. In both novels the protagonists transform their perception of their circumstances by becoming resourceful bricoleurs, unearthing imaginative possibilities in their immediate environment that allow them to forestall emotional isolation and the dehumanization of designated ‘Others’ such as the Jews. The article suggests that while The Boy in the Striped Pyjamas has been read as reinforcing the myth of German innocence, its typological representation of a ‘dangerous family’ and its implied affirmation of Bruno’s explorative instincts, empathetic capacities, and commitment to friendship, allow a reader greater recognition of the ‘banal ideologies and institutions occupied by the perpetrator’ (Ann Rider).
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Chaotic waveforms are natural information carriers since a correspondence can be established between the symbolic dynamics of a chaotic oscillator and the symbols of a message. Message symbols can be efficiently encoded in a chaotic waveform by applying vanishingly small perturbations to an oscillator to guide its symbolic dynamics to follow a desired course. Recently, two chaotic hybrid dynamical systems were shown to have matched filters enabling robust reception of chaotic communication waveforms in the presence of noise. The first of these, the exact shift oscillator, produces waveforms with desirable properties similar to antipodal signaling, but a physical implementation may be difficult to control using small perturbations. The second oscillator, the exact folded-band oscillator, produces less optimal waveforms but is more easily controlled. Here we introduce a method for generating waveforms of the exact shift oscillator by summing waveforms from a bank of easily controlled exact folded-band oscillators. We show that any solution of the exact shift oscillator can be so constructed using only three folded-band oscillators. Thus, this scheme allows us to realize the advantages of both chaotic systems while overcoming their individual disadvantages, thereby enabling practical chaos communications. 相似文献
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Helen Breathnach Susan Danby Lyndal O'Gorman 《International Journal of Early Years Education》2017,25(4):439-454
Play is valued conceptually and pedagogically, although its place in early years settings is under increasing pressure. Framed by the sociology of childhood and understandings of children’s agency, this article reports on an ethnographic study with children aged five years in the first year of primary school in Australia. The study investigated children's understandings of play in classroom activities involving different periods of teacher-framed and child-selected activities. Drawing on children’s accounts and video-recorded observations, the study found that children’s participation was influenced by teacher-framed agendas, and the agency afforded to them to engage in self-chosen activities and to design and negotiate their play spaces. For instance, children generally were unenthusiastic about writing activities and called these activities ‘work’ if they were directed by the teacher, and yet they consistently chose to engage in writing activities during periods of freely chosen activities. The findings raise questions about what counts as ‘play’ and ‘work’ for children, and the important function of play and free choice to mobilise participation in foundational academic activities such as writing. These understandings generate opportunities for educators to reflect upon ways to enhance children’s participation in everyday play activities in the classroom as supporting foundational academic activities. 相似文献