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81.
Dawn Male, Lecturer in Psychology and Special Needs at the Institute of Education, University of London, reports on headteachers' perceptions of the advantages of target setting and their concerns about its implementation.  相似文献   
82.
83.
Significant limitations have emerged in America's science training pipeline, including inaccessibility, inflexibility, financial limitations, and lack of diversity. We present three effective programs that collectively address these challenges. The programs are grounded in rigorous science and integrate through diverse disciplines across undergraduate, graduate, and postdoctoral students, and resonate with the broader community. We discuss these models in the context of current economic constraints on higher education and the urgent need for our institutions to recruit and retain diverse student populations and sustain the successful American record in scientific education and innovation.  相似文献   
84.
The extent to which cognitive development and abilities are dependent on language remains controversial. In this study, the analogical reasoning skills of deaf and hard of hearing children are explored. Two groups of children (deaf and hard of hearing children with either cochlear implants or hearing aids and hearing children) completed tests of verbal and spatial analogical reasoning. Their vocabulary and grammar skills were also assessed to provide a measure of language attainment. Results indicated significant differences between the deaf and hard of hearing children (regardless of type of hearing device) and their hearing peers on vocabulary, grammar, and verbal reasoning tests. Regression analyses revealed that in the group of deaf and hard of hearing children, but not in the hearing group, the language measures were significant predictors of verbal analogical reasoning, when age and spatial analogical reasoning ability were controlled for. The implications of these findings are discussed.  相似文献   
85.
Three experiments with rat subjects examined the development of simultaneous and serial feature-positive discriminations in appetitive conditioning. In Experiment 1, reinforced presentations of a simultaneous light-tone compound were intermixed with nonreinforced presentations of either the light or the tone. The compound stimulus acquired conditioned behaviors of a form characteristic of the predictive feature alone; the element common to reinforced and nonreinforced trials did not evoke conditioned behavior. In Experiment 2, reinforced presentations of a serial light-trace-tone compound were intermixed with nonreinforced tone-alone presentations. The light feature stimulus acquired conditioned behaviors characteristic of visual CSs. The tone stimulus, common to reinforced and nonreinforced trials, evoked conditioned behaviors characteristic of auditory CSs, but only when preceded by the light. In Experiment 3, variations in the interval between the light and tone on reinforced trials had little effect on responding to the light CS but substantially altered the pattern of responding to the tone CS. These results suggested that simultaneous and serial feature-positive discriminations may be solved differently. Performance in simultaneous feature-positive discriminations may be determined solely by associations between the feature stimulus and the reinforcer, but performance in serial discriminations may also involve the acquisition of a conditional cue function to the feature.  相似文献   
86.
ABSTRACT

We study the developmental and professional activities engaged in by 86 female adult soccer players from the senior national teams of Australia, Canada, England, Sweden, and the United States of America. Players completed the Participation History Questionnaire (PHQ) to elicit the amount and type of activities engaged in across their developmental and professional years, including milestones, soccer-specific activity and engagement in other sport activity. Greater specialisation than diversification characterised their childhood developmental activities, including all players starting in soccer in childhood and accumulating more hours in soccer activity than other sports during this period. However, interindividual variation further characterised these childhood activities, with a proportion of players diversifying into other sports and/or soccer play to a greater or lesser degree during childhood when compared to the other players. The amount of coach-led soccer practice increased for all players across their development culminating in an average of 15–16 h/wk across a 40-week season in early adulthood. In contrast, the amount of engagement in other sports and soccer peer-led play varied between players but generally decreased across adolescence to negligible amounts in late adolescence. Findings are commensurate with the deliberate practice framework and early engagement.  相似文献   
87.
This study examined the utility of a range of approaches used to develop player-dependent speed zones in time-motion analysis (TMA), in determining the dose-response (internal load) of daily football training. Daily external (10 Hz GPS) and internal load (heart rate metrics, ratings of perceived exertion [RPE], wellness ratings) measures were tracked for 22 International women’s football players during a 21-day training camp. High-speed (HSR) and very high speed running (VHSR) were determined according to arbitrary speed thresholds, as well as using a range of different individualization approaches that included the velocities corresponding to the heart rate deflection point, maximal aerobic speed, YYIR1 performance, and maximal sprint speed (MSS). Within-player correlations between the TMA approaches versus internal load measures quantified the dose-response to training. Correlations between HSR and VHSR vs. RPE were large (r = 0.53–0.67), with the exception of VHSR for the MSS technique (moderate; r = 0.44). HSR was very-largely associated with heart rate indices (r = 0.72–0.78), again with the exception of MSS (large; r = 0.60–0.67). Using a range of different fitness characteristics to individualise speed thresholds did not enhance the dose-response determination to daily fluctuations in external load, and was worsened with MSS per se.  相似文献   
88.
Background: Research in sport coaching and sport pedagogy including studies published in this special issue bring to the fore the relationship between learning and culture in contexts of high-performance sport. This paper acknowledged that how learning, culture and their relationship are conceptualised is a crucial issue for researchers and professionals in high-performance sport.

Purpose and approach: This paper arises from a theoretical analysis of the research studies presented in this special issue. The analysis undertaken focused on the understanding and representation of the concepts of learning and culture and critically examined the methodological application of particular conceptualisations. The intention was to extend insight into both theoretical and methodological issues associated with understanding and researching athlete and coach learning, and high-performance sport settings.

Findings and discussion: This paper identifies tendencies for separatist and reductionist thinking about learning and culture in high-performance sport settings. A relational perspective is identified as critical to extending research and professional practice that is directed towards learning and/or culture. Researchers are urged to avoid identifying either athlete or coach learning (only) with specific events or experiences, and similarly avoid positioning culture as something that sits apart from athletes’ and coaches’ participation and learning in elite sport settings. The dual notions of ‘learning practices as cultural practice’ and ‘cultural practice as pedagogical practice’ are proposed as a basis for holistic thinking about learning and culture in high-performance sport settings. The extent to which such thinking is reflected in the various contributions to the special issue is considered. Attention is then directed to the methodological challenges that researchers face if they are to reflect a conceptualisation of learning as both embedded and embodied in cultural practices. Challenging and extending the underlying vision of learning that researchers, coaches and athletes have is revealed as a critical consideration in regard to research design, data collection and ways in which participants are variously positioned, represented and ‘involved’ in research. Embodied perspectives are identified as particularly worthy of greater attention in contemporary research that seeks to extend understanding of athlete and/or coaches’ learning and lived experiences within and amidst elite sporting cultures. Recent scholarship focusing on the body and lived experience is identified as providing theoretical and methodological insights that can extend future research and practice.

Conclusions: Foregrounding a relational perspective is fundamental to extending the understanding of learning and culture in high-performance sport. Future research also needs to clearly embrace the methodological challenges presented by new conceptualisations.  相似文献   
89.
The health benefits of playing football and the importance of exercise and social contact for healthy ageing are well established, but few older adults in the UK take enough exercise. Football is popular, flexible in format and draws players into engrossing, effortful and social exercise, but the physical demands of play at full speed may make it unsustainable for some older adults. Restricted to walking pace, will play still be engaging? Will health benefits be retained? Will physical demands remain manageable? This pilot study aims to investigate: (1) the experience of older adults playing walking football every week, is it sustainable and rewarding, (2) the intensity and locomotor pattern of walking football, (3) the scale and nature of walking football health benefits and (4) possible cognitive benefits of playing walking football through measures of processing speed, selective and divided attention and updating and inhibition components of executive function. ‘Walking football’ and ‘waiting list’ groups were compared before and after 12 weeks of one-hour per week football. Walking football was found to be engaging, sustainable for older adults and moderately intensive; however, selective health and cognitive benefits were not found from this brief intervention.

Highlights

  • Walking football is a lower impact but authentic form of football that enables older players to extend their active participation.

  • Walking football is enjoyable and moderately demanding and may be a sustainable form of exercise for older adults.

  • Health and cognitive benefits to playing walking football were not found.

  相似文献   
90.
The researchers adopted a dialectical perspective to study how stepchildren experience and communicatively manage the perception of feeling caught in the middle between their parents who are living in different households. The metaphor of being caught in the middle is powerful for stepchildren and this metaphor animated their discourse. A central contribution of the present study was to understand the alternative to being caught in the middle and what this alternative means to stepchildren. Reflected in the discourse of stepchildren is that to feel not caught in the middle is to feel centered in the family. Stepchildren's desire to be centered in the family was animated by the dialectic of freedom–constraint, which co-existed within the contradictions of openness–closedness and control–restraint. These contradictions are detailed in the analysis, along with advice to parents from the perspective of stepchildren. Implications for the interaction of stepchildren and their parents are discussed.  相似文献   
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