Social Loafing and Identifiability: The Mediating Role of Achievement Goal Orientations     

Austin Swain 《Research quarterly for exercise and sport》2013,84(3):337-344

Abstract

The purpose of this investigation was to determine if differences in the tendency to exhibit social loafing is a function of achievement-goal orientation and identifiability. Ninety-six males drawn from 10th-grade physical education classes responded to the Task and Ego Orientation in Sport Questionnaire (Duda, 1992) prior to completing a 30-meter sprint task under three separate conditions: as an individual, in a team with individual performance identified, and in a team with individual performance not identified. Following a median split of the task and ego values reported, subjects were divided into high and low groups for both orientations. Sprint times were compared by means of a 2 × 2 × 3 ANOVA (task x ego x sprint condition) with repeated measures on the third factor. Findings revealed that individuals with a combined low task/high ego orientation were significantly slower in the nonidentifiable team condition than in the other two conditions, whereas high-task/low-ego-oriented individuals demonstrated consistent performance across all three conditions. While confirming that identifiability of performance is an important situational variable, the findings suggest that the dispositional factor of achievement orientation may interact to provide a more detailed explanation of the social loafing phenomenon.  相似文献   

Robust sensor fault estimation scheme for satellite attitude control systems   总被引：1，自引：0，他引：1  

Jian Zhang  Akshya Kumar SwainSing Kiong Nguang 《Journal of The Franklin Institute》2013

The present paper proposes two new schemes of sensor fault estimation for a class of nonlinear systems and investigates their performances by applying these to satellite control systems. Both of the schemes essentially transform the original system into two subsystems (subsystems 1 and 2), where subsystem-1 includes the effects of system uncertainties, but is free from sensor faults and subsystem-2 has sensor faults but without any uncertainties. Sensor faults in subsystem-2 are treated as actuator faults by using integral observer based approach. The effects of system uncertainties in subsystem-1 can be completely eliminated by a sliding mode observer (SMO). In the first scheme, the sensor faults present in subsystem-2 are estimated with arbitrary accuracy using a SMO. In the second scheme, the sensor faults are estimated by designing an adaptive observer (AO). The sufficient condition of stability of the proposed schemes has been derived and expressed as a linear matrix inequality (LMI) optimization problem and the design parameters of the observers are determined by using LMI techniques. The effectiveness of the schemes in estimating sensor faults is illustrated by considering an example of a satellite control system. The results of the simulation demonstrate that the proposed schemes can successfully estimate sensor faults even in the presence of system uncertainties.  相似文献   

Parenting and Beyond: Common Neurocircuits Underlying Parental and Altruistic Caregiving     

JE Swain  S Konrath  SL Brown  ED Finegood  LB Akce  CJ Dayton  SS Ho 《Parenting, science and practice》2012,12(2-3):115-123

Interpersonal relationships constitute the foundation on which human society is based. The infant-caregiver bond is the earliest and most influential of these relationships. Driven by evolutionary pressure for survival, parents feel compelled to provide care to their biological offspring. However, compassion for non-kin is also ubiquitous in human societies, motivating individuals to suppress their own self-interests to promote the well-being of non-kin members of the society. We argue that the process of early kinship-selective parental care provides the foundation for non-exclusive altruism via the activation of a general Caregiving System that regulates compassion in any of its forms. We propose a tripartite structure of this system that includes (1) the perception of need in another, (2) a caring motivational or feeling state, and (3) the delivery of a helping response to the individual in need. Findings from human and animal research point to specific neurobiological mechanisms including activation of the insula and the secretion of oxytocin that support the adaptive functioning of this Caregiving System.  相似文献   

What does bullying really mean?     

Jon Swain 《Educational research; a review for teachers and all concerned with progress in education》2013,55(3):358-364

The first part of this short report looks at the problems of using the term ‘bullying’ across different cultures; and the difficulties in arriving at a definitive definition of what constitutes bullying among professional researchers and other adults. The second part looks at young children's perception of what bullying means to them, and draws on a small‐scale piece of recent research that formed part of an MA dissertation on the incidence of bullying in a junior school in Essex. The results suggested that pupils (and teachers) found the term ‘bullying’ rather ambiguous and difficult to define. Younger pupils were found to have a more extensive definition of the term, and a hypothesis was proposed that this might account for the higher levels of being bullied found in the lower school.  相似文献   

'The Money's Good,The Fame's Good,The Girls are Good': The role of playground football in the construction of young boys' masculinity in a junior school     

Jon Swain 《British Journal of Sociology of Education》2000,21(1):95-109

This paper looks at the influential part played by the game of football in the social construction of hegemonic masculine practices among a group of Year 6 boys in an English junior school, which is an area that remains under-researched. Football forms a large part of school life for many children (the majority of whom are boys) and is sated with masculinising associations: this paper argues that football acts as a model for the boys, and they use the game as a way of constructing, negotiating, and performing their masculinity. Football is seen as a key signifier of successful masculinity, and its practices are a major influence on hegemonic masculinities, which are performed and defended in relation to other masculinities and femininities that become subordinated and marginalised. Girls are excluded from the games, along with some of the boys in the subordinated group who become feminised by their lack of skill and competence, and are subjected to homophobic abuse, as the hegemonic group acts within the 'cultural imperative' of heterosexuality. The games of playground football are viewed as a series of ritualised and fantasised performances, and this paper proposes that the body plays an essential role in the formation of masculine identities, with competitive displays of skill and strength. The school policies and organisation of football are also considered, and the power struggles and tensions this causes, not only between pupils, but also between teachers and pupils, and between teacher and teacher.  相似文献   

Football Club Formation and the Lancashire Leisure Class, 1857–1870     

Peter Swain 《国际体育史杂志》2017,34(7-8):498-516

This paper outlines the transition from football games played for occasional amusement to a system of organized football clubs playing regular matches in Lancashire in the mid-nineteenth century. This was led by young men of an emerging Lancashire leisured class being, in the main, the public school educated sons of the northern county’s commercial and industrial elite. These families had accumulated sufficient wealth, especially in the first half of the nineteenth century, to exempt a considerable part of their population from work both at weekends and during the normal working week with football becoming an act of conspicuous consumption. Three case studies of individual clubs and leading individuals within those clubs are presented with detailed archival research carefully avoiding the teleology implicit in much historical writing of the past. It also swells the paucity of good historical material about the organization of sport at levels below national bodies. In so doing, it aims to illuminate some of the shadows in the big picture of the evolution of sport and leisure in Lancashire and Britain itself while informing the ongoing orthodox/revisionist debate into the origins of football in the nineteenth century.  相似文献   

Mohr's graphical theory of earth pressure     

George F. Swain 《Journal of The Franklin Institute》1882,114(4):243-251

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Early Football and the Emergence of Modern Soccer: A Reply to Tony Collins     

Peter Swain 《国际体育史杂志》2016,33(3):251-271

This paper seeks to defend one part of what has become known as the ‘revisionist’ account of the historiography of football in nineteenth-century England. In so doing, it responds to the critique by Tony Collins in his article ‘Early Football and the Emergence of Modern Soccer’ between 1840 and 1880, calling into question the reliance in his arguments of what he describes as ‘legal organized games’ as the only measure of a football culture outside of the public schools. His classification of small-sided games of football as an ‘informal leisure practice or folk custom’ is also interrogated and found wanting. Alternatively, further evidence is presented from 1860 of football games played in a variety of forms, usually alongside other sports, and mainly on church, works’ or schools’ outings, at rural fetes, galas and celebrations, or as street or casual football, the latter taking place in meadows, fields, and greens. Importantly, these were predominantly small-sided games and are, arguably, the ones closest to Association football, as it was codified in 1863, and constituted a broad, tenacious, and increasingly visible football culture that existed amongst the general population across mid-century uninfluenced by the public schools and public school boys.  相似文献   

RELIGIOUS EDUCATION AND THE PUBLIC SCHOOLS     

Joseph Swain LL. D. 《Religious education (Chicago, Ill.)》2013,108(4):348-352

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Archives,identity and survivors of out-of-home care     

Gavan J McCarthy  Shurlee Swain  Cate O’Neill 《档案与原稿》2013,41(1):1-3

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