Beyond the technical: The role of emotion regulation in lacrosse officiating

Emotions can influence the performance of referees leading to a need to examine emotions experienced, and regulation strategies used by referees. The present study assessed emotions and emotion regulation strategies of 19 referees officiating at an Under-19 Lacrosse World Championship. Using survey methods and focus group interviews, officials responded to five questions: (a) What emotions were experienced? (b) What events elicited emotions? (c) How did lacrosse officials manage their own emotional states prior to, throughout, and following a competitive game? (d) How did officials manage others’ emotional states? (e) What were the perceived consequences of these strategies? Results indicate that emotions fluctuated throughout the tournament as referees encountered intrapersonal and interpersonal emotion-eliciting events. These fluctuations are suggested to come from a progressively diminished capacity for emotion regulation. Participants used emotion regulation strategies that could be classified into Gross’ (1999) families of emotion regulation strategies, often relying on suppression, emotion contagion, and preventative refereeing. Collectively, the results offer new insights into referee emotion regulation at international events.     

Revel,Riot and Rebellion

This article considers the ways in which the question of scale: parish, county, regional and national, operated in David Underdown’s Revel, Riot and Rebellion. It is suggested that Underdown mixed the parish-based approaches of Keith Wrightson and the regional model of the Annales school with his own interest in national politics. These methodological influences helped underwrite and structure the book’s narrative in which older models of local communal identity were fragmented both by the long process of social, economic and cultural change from the sixteenth century onward, but also by the national political developments of the 1640s and 1650s.     

Gendered performances and identity construction among UK female soccer players and netballers: a comparative study

This paper examines the gendered performances and identity construction of UK female University soccer players and netballers (n?=?31). Focus group interviews explored their sporting experiences with reference to body perceptions, and perceptions of their sporting bodies outside sporting contexts. Three themes resulted from data analysis, these being; (1) UK culture, body performances and femininity, (2) sporting culture, body performances and femininity and (3) transiency of body satisfaction across sport and non-sport contexts. Findings suggest that sport may not always provide an opportunity to challenge and resist dominant discourses. In both netball and soccer, a range of surveillance and management practices were used that served to perpetuate the value of a ‘feminine’ and assumed heterosexual body, and legitimize their sport participation through an emphasis on a hyper-femininity. The influence of sport subcultures on gendered performances and identity construction, along with implications for marketing sports participation to women are discussed.     

山地自行车运动员糖的补充

山地自行车运动是以有氧能力为主的耐力性体能类项目,糖的有氧代谢在其供能系统中占有重要地位。山地自行车运动员在运动前、中、后进行合理补糖,有助于运动能力的提高,延缓疲劳的出现和加速技能的恢复,补糖对山地自行车运动员具有重要意义。     

School climate: the controllable and the uncontrollable

A positive school climate impacts students by promoting positive relations among students, staff and faculty of the school. The current study used latent class analysis and multinomial regression with R3STEP to analyse patterns of negative behaviours in schools and test the association of these patterns with structural variables like school size, demographics, and location using data from the 2008 School Survey on Crime and Safety, (n = 2560). The results indicated five classes of frequencies of negative behaviours. By using the lowest frequency of behaviour class as a reference, the classes with the highest frequencies of bullying, teacher disrespect, and sexual assault were more likely to be found in high crime areas and have larger campuses serving over 1000 students. Implications include the need to serve subgroups of schools based on measurable variables and the need to educate future teachers, administrators, and school psychologists about school climate and positive behaviour support systems.     

Molecular game theory for a toxin-dominant food chain model

Animal toxins that are used to subdue prey and deter predators act as the key drivers in natural food chains and ecosystems. However, the predators of venomous animals may exploit feeding adaptation strategies to overcome toxins their prey produce. Much remains unknown about the genetic and molecular game process in the toxin-dominant food chain model. Here, we show an evolutionary strategy in different trophic levels of scorpion-eating amphibians, scorpions and insects, representing each predation relationship in habitats dominated by the paralytic toxins of scorpions. For scorpions preying on insects, we found that the scorpion α-toxins irreversibly activate the skeletal muscle sodium channel of their prey (insect, BgNa_V1) through a membrane delivery mechanism and an efficient binding with the Asp/Lys-Tyr motif of BgNa_V1. However, in the predatory game between frogs and scorpions, with a single point mutation (Lys to Glu) in this motif of the frog''s skeletal muscle sodium channel (fNa_V1.4), fNa_V1.4 breaks this interaction and diminishes muscular toxicity to the frog; thus, frogs can regularly prey on scorpions without showing paralysis. Interestingly, this molecular strategy also has been employed by some other scorpion-eating amphibians, especially anurans. In contrast to these amphibians, the Asp/Lys-Tyr motifs are structurally and functionally conserved in other animals that do not prey on scorpions. Together, our findings elucidate the protein-protein interacting mechanism of a toxin-dominant predator-prey system, implying the evolutionary game theory at a molecular level.