This study takes an ecological approach to examine how children with developmental language disorder (DLD) interact with their classmates within early childhood special education (ECSE) inclusive classrooms. Participants were 124 children with DLD, 56 children with other disabilities, and 247 typically developing children (Mage = 52.42 months, SD = 6.27) from 56 ECSE inclusive classrooms. Results of social network analysis showed that children with DLD had significantly smaller peer social networks and were more likely to be isolated. Children tended to interact with peers with the same DLD status. These effects of children's DLD status were above and beyond the effects of children's social pragmatics skills. 相似文献
Gender-nonconforming (GN) children are often perceived less positively, which may harm their well-being. We examined the development of such perceptions and an intervention to modify them. Chinese children’s appraisals were assessed using multiple measures (verbal responses, sharing, and rank order task) after viewing vignettes of gender-conforming (GC) and GN hypothetical peers. In Study 1, children (N = 210; 4-, 5-, 8-, and 9-year-olds) were less positive toward GN than GC peers, especially if they were older or if the peers were boys. In Study 2 (N = 211, 8- and 9-year-olds), showing children exemplars of GN peers who displayed positive and GC characteristics subsequently reduced bias against gender nonconformity. These findings inform strategies aimed at reducing bias against gender nonconformity. 相似文献
Contextual influences on private speech were examined in two preschools differing in the learning environments they provide for children. Observations of 3- to 5-year-olds were made during free-choice periods in a Montessori and a traditional (play-oriented) program. Consistent with Vygotsky's theory that make-believe play serves as a vital context for the development of self-regulation, the incidence of private speech was much higher during open-ended activities, especially fantasy play, that require children to determine the goal of the task, than during closed-ended tasks with predetermined goals. In line with previous research, the more direct involvement, or external regulation, teachers displayed, the lower the rate of children's private speech. In addition, transitions (as opposed to involvement in activities) were linked to reduced private speech, whereas engagement with peers, in the form of associative play, predicted greater self-directed language. Diminished make-believe play, greater teacher direct involvement, and heightened time spent in transitions largely accounted for the lower incidence of private speech in the Montessori compared with the traditional preschool. Contextual factors also contributed to a drop in private speech at age 5. Implications for fostering children's verbal self-regulation during early childhood are considered. 相似文献
Given the lack of relevant data, the aim of this study was to examine femur cortical and trabecular bone in female and male professional ballet dancers. 40 professional ballet dancers and 40 sex- and age-matched non-exercising controls volunteered. Femoral bone density was scanned by dual-energy X-ray absorptiometry (DXA) scan. A 3D-DXA software was used to analyse trabecular and cortical bone. Anthropometry, maturation (Tanner staging), menstrual parameters (age at menarche and primary amenorrhea), energy availability and nutritional analysis (3-day record) were also assessed.Compared to non-exercising participants, dancers exhibited significantly higher volumetric density for integral, cortical and trabecular bone, and thicker cortex at the femur. Ballet dancers demonstrated lower body weight compared to controls (p < 0.01). Female dancers had their menarche later than controls, and the prevalence of primary amenorrhea were significantly higher in dancers than controls (p < 0.01). Dancer’s energy availability was below the normal range (<30 kcal/kgFFM/day). Despite the presence of certain osteoporosis risk factors such as low energy availability, primary amenorrhoea and lower body weight, professional ballet dancers revealed higher bone density for both cortical and trabecular bone compartments compared to controls. 相似文献
Objective: Little is known about cognition’s effect on jump-landing movement patterns. Design: Participants completed three baseline cognitive tasks. Then, participants performed three jump-landing trials per condition (dual-task trials (DT)): Stroop Color Word test (SCWT), Symbol Digits Modalities test (SDMT), Brooks Visuospatial task (BVT), and no concurrent cognitive task (single-task). Main Outcome Measures: Total Landing Error Scoring System (LESS) scores were used to evaluate movement patterns. Participant’s reaction time (RT) for the jump-landing task was recorded. Results: LESS scores were not different between conditions (F3, 17 = 1.77, p = 0.16). RT was different between DT-SCWT and single-task (difference = ?0.107 sec, SD = 0.095) and DT-SDMT and single-task (difference = ?0.164 sec, SD = 0.245). Additionally, correctness on the BVT (t19 = 2.57, p = 0.019) and SDMT (t19 = 2.93, p = 0.009) decreased significantly during the dual-task condition relative to baseline task scores. Conclusion: Individuals slowed their RT and were less accurate on the cognitive task during a dual-task condition to create an appropriate jump-landing movement. 相似文献
Taking our lead from Rainer Maria Rilke’s (1929) ‘Letters to a Young Poet’, our broader project aimed to create a space for dialogue and intergenerational learning between Physical Education and Sport Pedagogy (PESP) Early Career Academics (ECAs) and members of the PESP professoriate. This paper focuses specifically on the experiences of PESP ECAs. We draw upon narratives of thirty ECAs from nine different countries to gain insight into the experiences, joys, challenges and ambitions they associate with being and becoming a PESP academic. A narrative analysis of the data generated by the ECAs was undertaken. The analysis aimed to be holistic in nature, interested in form and content: both the told (the content) and the telling (how it was told). We initially focused our analysis using the six dimensions of narrative (characters, setting, events, audience, causal relations and themes). Bourdieu’s socio-analytical toolkit complemented our narrative analysis and helped us move beyond the personal narratives by linking them to the broader social practices, relations and structures of the various settings or fields (PESP, university, family) within which the participants function. The findings suggest that many ECAs are experiencing crises of habitus, as they work to suppress ethical dispositions and values and adjust to ‘the rules’ that universities increasingly play by. Our discussion engages with the affective costs of playing by these rules, and recruits Bourdieu’s notion of ‘reflexive vigilance’ to advocate for ongoing critical analysis of how power operates in the various field which academics inhabit. 相似文献
Background: Critical inquiry approaches have been presented as one way of enhancing relevance in school-based education, and there have been calls from academia for its systematic use within health and physical education (HPE).
Purpose: This research explored how three Secondary HPE teachers co-constructed and enacted a unit of work (Take Action) that was underpinned by critical inquiry approaches. Drawing on the work of Stephen Ball we focus here on the different ways in which the three teachers interpreted, translated and enacted ‘Take Action’, and negotiated a shift away from the performative pedagogies of traditional HPE. Take Action is a co-constructed, inquiry-based unit of work that sought to provide an alternative to traditional and often exclusive HPE.
Data collection and analysis: A participatory action research approach was undertaken. Data were uncovered from qualitative interviews, classroom observations and field notes before, during and after the enactment of Take Action. Data were analysed using the qualitative data analysis software ‘Dedoose’ which facilitated coding. Data were analysed inductively across all sources utilising a constant comparative method. Analyses consisted of three phases of coding: open, axial and selective. Open coding involved the categorisation of data into themes and axial coding considered connections across the themes. Selective coding involved a refining and development of the previously identified themes, and then bringing the themes/codes together to tell a story about the teachers and their perspectives on the enactment of Take Action.
Findings: Three teachers co-constructed, translated and enacted Take Action, and whilst some challenges were universal, the process and outcomes unfolded quite differently for each. The two contextual factors that emerged as most influential were: (i) the structural support available for teachers and learners and (ii) the time available for the unit to be enacted, and for the teachers’ philosophies to be challenged and transformed. Take Action was one way of supporting teachers in responding to calls from policy-makers for more critical inquiry in HPE. Interpreting, translating and enacting Take Action challenged how teachers viewed their role in the learning process, the nature of HPE, and the breadth of their pedagogical repertoire.
Conclusions: The findings confirm that curriculum and policy are volatile and rarely mobilised as the creator/s intended. They highlight that the ‘fluidity’ of curriculum mobilisation persists, irrespective of whether the teachers have mental ownership over the process and/or are involved in its co-creation. The complexity that accompanies a shift towards ‘alternative’ ways of understanding and teaching HPE, however, means that calls from academia and policy-makers are unlikely to be fruitful unless: (i) there is an appreciation for each teacher's philosophies; (ii) each school culture is fully understood; (iii) the inevitable challenges are viewed as spaces to learn, reflect and move forward; and (iv) support comes in many forms depending on the teacher and the school. The findings confirm that whilst policy creates a particular context, it is the ideologies and histories that permeate teachers’ philosophies and school context that will ultimately dictate the policy process. This is not a problem to be solved but a process which we can learn in, through and about. 相似文献
Although motorcycling performance strongly depends on the characteristics of the motorcycles and capabilities of the riders, little information is available on the physiological profiles of riders. The aim of this study was to evaluate the physical load of official international men's road-race motorcycling competitions. Data were obtained from 34 male riders during the 2005 European Road-Race Motorcycling Championship (categories classified by size of engine: 125 GP, 250 GP, and 600 cc) during free practices, qualifying sessions, and official races. Participants' heart rates were recorded and blood lactate concentrations determined. During races, heart rates were most often above 90% of maximum heart rate (frequency of occurrence: 125 GP = 92.9%, s = 5.3; 250 GP = 93.6%, s = 7.3; 600 cc = 93.2%, s = 10.2). The heart rate distribution during riding showed main effects between phases of competition, engine sizes, and different portions of the race (P < 0.001). No difference was observed between riders on and not on the podium at the end of the race. Peak blood lactate concentrations after the qualifying sessions (5.2 mmol . l(-1), s = 1.2) and official races (6.0 mmol . l(-1), s = 2.1) were higher (P < 0.001) than at baseline. The present results show that road-race motorcycling imposes a high load on the riders, who should possess adequate fitness to maintain high-speed rides and minimize the effects of fatigue during competition. 相似文献
We performed six experiments in order to examine the ability of rats to use moving beacons and landmarks as cues to the location of reward on an eight-arm radial maze. In Experiments 1–4, the cues and goals were moved before each trial, and groups in which a single beacon was placed on the rewarded arm, a single landmark indicated that reward was on the arm immediately to the left of a landmark, or two landmarks were placed on each side of the reward arm were compared. The rats rapidly learned to track the reward in the beacon condition, failed to find the reward sooner than chance expectation with a single landmark, and did only slightly better than chance with two landmarks. In Experiments 5 and 6, the rats were trained in five trials per day, with the landmark and goal locations constant over daily rewarded trials, and in two extinction trials that were inserted among the rewarded trials. The rats found the goal arm at substantially better than chance expectancy with both one and two landmarks. Our results, in agreement with data from recent swimming pool experiments (A. D. L. Roberts & Pearce, 1998), show that rats will use the relationship between moving landmarks and a goal in order to find reward. 相似文献
Summarizing the incomplete results of the UNESCO Programme on “Good Practice in Promoting Gender Equality in Higher Education”;, the author asks that any assessment of the progress made in the area of gender‐sensitive education take regional specificities into account. The regional environment is at best neutral and usually hostile to feminism in subtle ways. In spite of the lack of tradition and experience in gender‐sensitive social institutions, valuable things have been happening in the region. Placed within their socio‐economic and political contexts (and not necessarily judged according to western standards) individuals, programmes, and institutions are pioneering in the field. Access to the benefits of an education incorporating a coherent gender dimension is, for the time being, limited. Some reasons for this situation are outlined in this article. 相似文献
