Health and body tensions and expectations for pre-service physical education teachers in Spain     

Gustavo González-Calvo  Valeria Varea  Lucio Martínez-Álvarez 《Sport, Education and Society》2019,24(2):158-167

The importance of the Physical Education (PE) teacher’s body, particularly for teaching PE, has been highlighted in literature. PE teachers are expected to be clear role models to students through their acts, behaviours and bodies. However, their strong embodied subjectivities, particularly those related to their teaching practices, may be problematised. This paper explores the ways in which a group of 15 pre-service PE teachers from a Spanish university constructed perspectives about the body and health in relation to their professional practices. Body journals were used to collect data, which were analysed using a Deleuze-Guattarian approach. The findings reveal the significant emphasis participants placed on their own bodies while teaching PE and the pressure they felt to conform to certain expectations of their professional roles. In response, we propose critical reflection on the content of Physical Education Teacher Education (PETE) programmes and incorporation of alternative pedagogical approaches to alleviate the heavy reliance on pre-service teachers’ bodies.  相似文献   

Sports mega-events in the perception of the local community: the case of Itaquera region in São Paulo at the 2014 FIFA World Cup Brazil     

Roberto Paolo Vico  Ricard Ricci Uvinha  Nuno Gustavo 《Soccer & Society》2019,20(6):810-823

Hosting sporting mega-events involve considerable investment in and significant engagement with local communities. This paper contributes to the burgeoning literature about sporting mega event’s socio-geographical impacts on tourism, employment, urban regeneration, and socio-economic and cultural benefits. Within the context of 2014 FIFA World Cup in Brazil, we assess, utilizing interview data from local communities, the impact of the construction of the 2014 World Cup’s opening venue, ‘Arena Corinthians’ soccer stadium, in Itaquera, as well as other infrastructure developments more widely in the East Zone of São Paulo. The results point to the diversity of opinions among the resident community about the real legacies resulting from this sport mega-event.  相似文献   

What is the ‘Social’ in Climate Change Research? A Case Study on Scientific Representations from Chile     

Billi  Marco  Blanco  Gustavo  Urquiza  Anahí 《Minerva》2019,57(3):293-315

Over the last few decades climate change has been gaining importance in international scientific and political debates. However, the social sciences, especially in Latin America, have only lately become interested in the subject and their approach is still vague. Scientific understanding of global environmental change and the process of designing public policies to face them are characterized by their complexity as well as by epistemic and normative uncertainties. This makes it necessary to problematize the way in which research efforts understand ‘the social’ of climate change. How do ‘the climate’ and ‘the social’ interpenetrate as scientific objects? What does the resulting field look like? Is the combination capable of promoting reflexivity and collaboration on the issue, or does it merely become dispersed with diffuse boundaries? Our paper seeks to answer these and other related questions using Chile as a case study and examining peer-reviewed scientific research on the topic. By combining in-depth qualitative content analysis of each paper with a statistical meta-analysis, we were able to: characterize the key content and forms of such literature; identify divisions and patterns within it; and, discuss some factors and trends that may help explain these. We conclude that the literature displays two competing trends: while it is inclined to become fragmented beyond the scope of the ‘mitigation’ black box, it also tends to cluster along the lines of methodological distinctions traditionally contested within the social sciences. This, in turn, highlights the persistence of disciplinary divisions within an allegedly interdisciplinary field.

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Evidence of sub-optimal sleep in adolescent Middle Eastern academy soccer players which is exacerbated by sleep intermission proximal to dawn†     

Peter M. Fowler  Darren J. Paul  Gustavo Tomazoli  Abdulaziz Farooq  Richard Akenhead  Lee Taylor 《European Journal of Sport Science》2017,17(9):1110-1118

The purpose was to assess sleep patterns, quantity and quality in adolescent (16.2?±?1.2 yr) Middle Eastern academy soccer players (n?=?20) and the influence of an intermission upon these characteristics. On a 17-day training camp (located one time zone west of home) including three discrete matches, sleep was assessed pre- (PRE) and post-match (POST) via wrist actigraphy. Retrospective actigraphy analysis identified sleep characteristics, including if players experienced a sleep intermission (YES) or not (NO) proximal to dawn, and bedtime (hh:mm), get-up time (hh:mm), time in bed (h), sleep duration (h) and sleep efficiency (%). Within YES two bouts were identified (BOUT1 and BOUT2). No differences were seen between PRE and POST, nor between BOUT1 and BOUT2 (p?>?.05). Overall players did not meet National Sleep Foundation (NSF) guidelines (7:04?±?1:16?h vs. recommended 8–10?h for 14–17 yr). Sleep duration was significantly reduced (～ ?13% or ?1:06) in YES compared to NO (6:33?±?1:05 vs. 7:29?±?1:17, p?<?.01). Despite players in YES waking earlier due to an intermission, they did not compensate for this with a later wake time, rising significantly earlier compared to NO (09:40?±?00:38 vs. 10:13?±?00:40, p?<?.05). These players on average do not obtain sufficient sleep durations relative to NSF guidelines, with decrements increased by an intermission proximal to dawn. High inter- and intra-individual variance in the players sleep characteristics indicates the need for individualized sleep education strategies and interventions to promote appropriate sleep.  相似文献   

Editorial     

Maria M. Nascimento  Gustavo R. Alves  Maria Luisa Sein-Echaluce 《European Journal of Engineering Education》2019,44(4):445-448

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Switched systems with changing derivation order: Stability and applications     

Javier A. Gallegos  Norelys Aguila-Camacho  Manuel A. Duarte-Mermoud  Juan C. Travieso-Torres  Gustavo E. Ceballos-Benavides 《Journal of The Franklin Institute》2021,358(7):3943-3963

This paper deals with systems that can switch their structure, including the differentiation order. It is shown that there are several non-equivalent cases for them, which all coincide when the derivation order is not switched but fixed at 1. For each of these cases, (asymptotic) stability results are obtained in this paper. This is accomplished by generalizing Common Lyapunov Functions (CLF) and Multiple Lyapunov Functions (MLF) methods, the latter when applied to fractional switching systems (FSS) in the resetting. Several examples are presented to illustrate that such Lyapunov functions exist for linear and nonlinear switched order systems. It is shown that the resetting fractional switching can be easily implemented by standard software. Finally, applications in adaptive integer-order problems are made by exploiting features of both fractional and integer-order systems.  相似文献   

The Longitudinal Associations Among Temperament,Parenting, and Turkish Children's Prosocial Behaviors          下载免费PDF全文

Deborah J. Laible  Asiye Kumru  Gustavo Carlo  Cara Streit  Bilge Selcuk  Melike Sayil 《Child development》2017,88(4):1057-1062

In Turkey, responsive behaviors toward kin are expected from children. Despite this, we know little about the factors that influence young Turkish children's prosocial behaviors. The goal was to explore how temperament and parenting are related to children's prosocial development in Turkey. A total of 293 Turkish children (M_age = 49 months; 48.12% females) were followed up for 3 years. Mothers completed measures of their child's prosocial behaviors, as well as measures of their warmth, inductive reasoning, and the child's approach and reactivity. Maternal warmth predicted children's reactivity, and maternal induction predicted children's sociability. Children's reactivity was inversely related to children's helping behavior and sociability was related to more prosocial behavior. Maternal warmth had indirect links with helping through lessening children's reactivity.  相似文献   

Ultrasound-Assisted Extraction and Biological Activities of Extracts of Brassica oleracea var. capitata     

Valéria Dal Prá  Carolina Bolssoni Dolwitsch  Fernanda Oliveira Lima  Camilo Amaro de Carvalho  Carine Viana  Paulo Cícero do Nascimento  Marcelo Barcellos da Rosa 《Food Technology and Biotechnology》2015,53(1):102-109

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Does Helping Keep Teens Protected? Longitudinal Bidirectional Relations Between Prosocial Behavior and Problem Behavior          下载免费PDF全文

Laura M. Padilla‐Walker  Gustavo Carlo  Matthew G. Nielson 《Child development》2015,86(6):1759-1772

The current study examined bidirectional, longitudinal links between prosocial and problem behavior. Participants (N = 500) were recruited from a Northwestern city in the United States and assessed for 3 consecutive years from 2009 to 2011 (M_age of youth at Time 1 = 13.32, SD = 1.05; 52% girls; 67% European American, 33% single‐parent families). Results suggested that effects of earlier prosocial behavior toward family and strangers were predictive of fewer problem behaviors 2 years later, while results for prosocial behavior toward friends were more mixed. Results also suggested depression predicted lower prosocial behavior toward family members and anxiety predicted higher prosocial behavior toward friends. Findings show a complex pattern of relations that demonstrate the need to consider targets of helping.  相似文献   

Trading in birds: imperial power, national pride, and the place of nature in U.S.-Colombia relations     

Quintero C 《Isis; an international review devoted to the history of science and its cultural influences》2011,102(3):421-445

Between the 1910s and the 1940s, American naturalists carried out a number of ornithological expeditions in Colombia. With the help of Colombian naturalists, thousands of skins were brought to natural history museums in the United States. By 1948 these birds had become an important treasure: American ornithologists declared Colombia the nation with the most bird species. This story sheds new light on the role science played in the expansion of U.S. political, economic, and cultural influence in Latin America in the early twentieth century, as well as on the relation between nationalist movements in Latin America and the study of the natural world. Recognizing a complex but fruitful interaction between nationalist policies and imperial practices proves important for understanding the success of the naturalists' enterprise in Colombia.  相似文献