Developmental continuity in theory of mind: speed and accuracy of belief-desire reasoning in children and adults     

Apperly IA  Warren F  Andrews BJ  Grant J  Todd S 《Child development》2011,82(5):1691-1703

On belief-desire reasoning tasks, children first pass tasks involving true belief before those involving false belief, and tasks involving positive desire before those involving negative desire. The current study examined belief-desire reasoning in participants old enough to pass all such tasks. Eighty-three 6- to 11-year-olds and 20 adult participants completed simple, computer-based tests of belief-desire reasoning, which recorded response times as well as error rates. Both measures suggested that, like young children, older children and adults find it more difficult to reason about false belief and negative desires than true beliefs and positive desires. It is argued that this developmental continuity is most consistent with either executive competence or executive performance accounts of the development of belief-desire reasoning.  相似文献   

Organisational readiness and capacity building strategies of sporting organisations to promote health     

Meghan M. Casey  Warren R. Payne  Rochelle M. Eime 《Sport Management Review》2012,15(1):109-124

This paper explored the readiness of Victorian State Sporting Organisations (SSOs) in Australia to implement health promotion (HP) programs and sought to understand how they implemented capacity building strategies to promote health. Ten SSOs that received funding to develop and implement HP were recruited for the study. Interviews were conducted with key staff from SSOs and focus groups were undertaken with their Boards of Management. Factors analysed were SSO organisational readiness and capacity building strategies to implement change in organisational processes, organisation and resources, and systems and controls. SSOs made a concerted effort to create and support sport and recreation contexts that promote healthy behaviours. A number of SSOs achieved changes in their culture and systems by implementing formalised and systematic programs such as the club development program. The club development program supported the implementation and sustainability of HP throughout the organisational system of the SSO. These changes, however, were dependent upon organisational readiness; particularly climate and capacity, whereby financially “well off” SSOs had the capacity to engage in HP in a significant way. This paper highlights opportunities and challenges for policy makers to fund HP within sporting organisations; especially when the delivery of sport is a more immediate responsibility than HP.  相似文献   

Book reviews     

Catherine Doherty  Warren Sellers  Peter Appelbaum  Nicola F. Johnson 《The Australian Educational Researcher》2010,37(4):115-124

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Chemical applications of recent dielectric constant theory     

John Warren Williams 《Journal of The Franklin Institute》1935,219(1):47-72

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Public higher education: Who steers the ship?     

Peter N. Warren 《Academic Questions》1998,11(2):78-83

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Process gain and process loss: comparing interpersonal processes and performance of culturally diverse and non-diverse teams across time     

Warren E. Watson  Lynn Johnson  Kamalesh Kumar  Joe Critelli 《Int J Intercult Relat》1998,22(4):193

Members of 82 student groups involved in a Team Learning instructional format were surveyed with the Group Style Instrument (GSI) to examine the possible dimensions of team oriented behaviors and individualistically oriented behaviors. Exploratory factor models and confirmatory factor models were compared to find the best factor structure fit. The GSI was found to have dimensions that were team and individualistically oriented. From a second sample data was collected across four months on the group process and group performance of culturally non-diverse and culturally diverse groups. Data were evaluated in two significant ways. First, the team orientation and individual orientation dimensions were used to define interpersonal processing. Second, the team process dimensions were used to define interpersonal processing. Second, the team process dimensions were examined further to evaluate their relation to group performance. Early on the diverse teams showed less team orientation and more individual orientation than non-diverse teams, but through frequent feedback on task and interpersonal processing, the diverse teams caught up by the third time period. By the end, diverse teams maintained high team orientation but also allowed a reasonable extent of individual orientation. The diverse teams were beginning to utilize diversity to their advantage. Team and Individualistic orientations showed significant relations to team performance across time. Suggestions are given for future research.  相似文献   

Training load and schedule are important determinants of sleep behaviours in youth-soccer players     

Craig M. Whitworth-Turner  Rocco Di Michele  Ian Muir  Warren Gregson  Barry Drust 《European Journal of Sport Science》2019,19(5):576-584

The current study examined how sleep may be influenced by the scheduling of training and match load within 10 youth-soccer players. Sleep was measured over a 14-day in-season period using a commercially available wireless sleep monitor. Each collected sleep variable; lights out, sleep latency, total sleep time wake after sleep onset and final awakening, was compared for the specific day within the training schedule (e.g. match day [MD], day after match [MD?+?1]) and to training/match load (high-speed distance (>5.5 m/s) [HSD] and rating of perceived exertion. The data were analysed using mixed models and effect sizes, to describe the magnitude of effects that training schedule and training load may have on sleep. A reduction of sleep duration was observed on the day after the match (MD?+?1) in relation to the training days preceding the match (MD-2: ?65 min, ES: 0.89?±?0.79; MD-1 ?61 min, ES: 0.82?±?0.64) and reduction on match day (+45 min; ES: 1.91?±?1.69). This may suggest youth-soccer players actively change their sleep scheduling behaviours in relation to the imposed soccer schedule. Increased high-speed running (for every 100 m) showed a small increase to total sleep time (+9 min; ES: 0.48?±?0.31). This may suggest that increases in training load may be associated with small increases in sleep quantity. Such observations may highlight that the type of day and the associated load within the training microcycle may have important consequences for sleep within youth-soccer players.  相似文献   

Influence of cold-water immersion on limb blood flow after resistance exercise*     

Chris Mawhinney  Helen Jones  David A. Low  Daniel J. Green  Glyn Howatson  Warren Gregson 《European Journal of Sport Science》2017,17(5):519-529

This study determined the influence of cold (8°C) and cool (22°C) water immersion on lower limb and cutaneous blood flow following resistance exercise. Twelve males completed 4 sets of 10-repetition maximum squat exercise and were then immersed, semi-reclined, into 8°C or 22°C water for 10-min, or rested in a seated position (control) in a randomized order on different days. Rectal and thigh skin temperature, muscle temperature, thigh and calf skin blood flow and superficial femoral artery blood flow were measured before and after immersion. Indices of vascular conductance were calculated (flux and blood flow/mean arterial pressure). The colder water reduced thigh skin temperature and deep muscle temperature to the greatest extent (P?<?.001). Reductions in rectal temperature were similar (0.2–0.4°C) in all three trials (P?=?.69). Femoral artery conductance was similar after immersion in both cooling conditions, with both conditions significantly lower (55%) than the control post-immersion (P?<?.01). Similarly, there was greater thigh and calf cutaneous vasoconstriction (40–50%) after immersion in both cooling conditions, relative to the control (P?<?.01), with no difference between cooling conditions. These findings suggest that cold and cool water similarly reduce femoral artery and cutaneous blood flow responses but not muscle temperature following resistance exercise.  相似文献   

The Value of Natural History Collections     

Warren D. Allmon 《Curator: The Museum Journal》1994,37(2):83-89

The value of museum natural history collections is commonly poorly explained to, and therefore commonly misunderstood by, the general public. This is an increasingly dangerous situation at a time of tight fiscal constraints; if natural history collections are to survive, those charged with their care will have to do more to broadcast their value as both resources for research and public education. Research values include documenting biotas no longer available and present and past biogeographic distributions, housing type, voucher specimens, and (perhaps most importantly) serving as fertile places for scientific discovery and inspiration. Public values include serving as resources for identification of unknown specimens, hands-on education and the support of systematics, and (perhaps most importantly) as the depository for the final physical evidence for the history and diversity of life on Earth.  相似文献   

Intensity and physiological strain of competitive ultra-endurance exercise in humans     

Lucas SJ  Anglem N  Roberts WS  Anson JG  Palmer CD  Walker RJ  Cook CJ  Cotter JD 《Journal of sports sciences》2008,26(5):477-489

The aim of this study was to determine the magnitude and pattern of intensity, and physiological strain, of competitive exercise performed across several days, as in adventure racing. Data were obtained from three teams of four athletes (7 males, 5 females; mean age 36 years, s = 11; cycling .VO(2 peak) 53.9 ml . kg(-1) . min(-1), s = 6.3) in an international race (2003 Southern Traverse; 96 - 116 h). Heart rates (HR) averaged 64% (95% confidence interval: +/- 4%) of heart rate range [%HRR = (HR - HR(min))/(HR(max) - HR(min)) x 100] during the first 12 h of racing, fell to 41% (+/-4%) by 24 h, and remained so thereafter. The level and pattern of heart rate were similar across teams, despite one leading and one trailing all other teams. Core temperature remained between 36.0 and 39.2 degrees C despite widely varying thermal stress. Venous samples, obtained before, during, and after the race, revealed increased neutrophil, monocyte and lymphocyte concentrations (P < 0.01), and increased plasma volume (25 +/- 10%; P < 0.01) with a stable sodium concentration. Standardized exercise tests, performed pre and post race, showed little change in the heart rate-work rate relationship (P = 0.53), but a higher perception of effort post race (P < 0.01). These results provide the first comprehensive report of physiological strain associated with adventure racing.  相似文献