Fifty years after the Bandung conference: towards a revival of the solidarity between the peoples of the South? Interview with Samir Amin     

Rémy Herrera 《Inter-Asia Cultural Studies》2013,14(4):546-556

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Total sleep time in Muslim football players is reduced during Ramadan: a pilot study on the standardized assessment of subjective sleep-wake patterns in athletes     

Herrera CP 《Journal of sports sciences》2012,30(Z1):S85-S91

Ramadan is a period in which Muslims fast during daylight hours and is associated with disturbances in sleep-wake behaviour and adverse effects on physical and mental health in normal volunteers. Studies using athletes are rare and remain equivocal as to whether Ramadan influences sleep-wake patterns. Notably, the standardized assessment of subjective sleep quality and daytime sleepiness in athletes has not been established. This study employed the Arabic version of the Pittsburgh Sleep Quality Index, Insomnia Severity Index, and Epworth Sleepiness Scale in nine football players aged 20-35 years (mean ± s: 26 ± 4) one week before and during the last week of Ramadan. Compliance rates with self-administration were high (71%) and the results demonstrated a robust decline in total sleep time (before Ramadan: 6.6 ± 2 h; at the end of Ramadan: 5.3 ± 1 h; P < 0.05, effect size 0.81). Compared with previous research, the study questionnaires offer improved methodology, including less time constraints plus standardization in scoring. Thus, this study demonstrates a framework for greater reproducibility and reliability in the assessment of subjective sleep-wake patterns in athletes before and during Ramadan.  相似文献   

Analysis of foot strike pattern,rearfoot dynamic and foot rotation over childhood. A cross-sectional study     

Pedro Ángel Latorre Román  Fernando Redondo Balboa  Juan Párraga Montilla  Víctor Manuel Soto Hermoso  Pedro José Consuegra González  Felipe García Pinillos 《Journal of sports sciences》2019,37(5):477-483

The purpose of this study was to determine the foot strike patterns (FSP), rearfoot position at initial contact (RPic, i.e., No INV/EVE) and foot rotation in children in relation to age. A total of 932 children aged 3 to 16 years participated in this study. A sagittal and frontal-plane video was recorded using a high-speed camcorder to analyse these variables. There is a significant increase (p < 0.001) of rearfoot strike patterns (RFS) prevalence in relation to age; e.g. preschool children (3–6 years old) displayed an RFS prevalence 46.65% and the adolescent population(15–16 years old) an RFS prevalence 92.20%. The total RFS prevalence in all samples was 69.25%. There was a significant reduction (p < 0.001) of prevalence of RPic in relation to age groups; preschool children displayed a prevalence of RPic 60.37% and the adolescent population 10%. There was a significant reduction (p < 0.001) of prevalence of no foot rotation in relation to age groups; preschool children displayed a prevalence of no foot rotation 48.95% and the adolescent population 13.55%. In conclusion, FSP in children are influenced by age. It is noteworthy that the RFS prevalence of children is lower in comparison to the adult population.  相似文献   

The association of bike fitting with injury,comfort, and pain during cycling: An international retrospective survey     

Jose Ignacio Priego Quesada  Zachary Y. Kerr  William Michael Bertucci  Felipe P. Carpes 《European Journal of Sport Science》2019,19(6):842-849

Although bike fitting is recommended to help reduce injury risk, little empirical evidence exists to indicate an association between bike fitting and injury incidence. The aim of the study was to determine the effect of bike fitting on self-reported injury, comfort, and pain while cycling from a worldwide survey of cyclists. A total of 849 cyclists completed an online questionnaire between February and October 2016. Questionnaire collected data on respondent demographics, cycling profile, bike fitting, comfort and pain while cycling, and injury history. The main predictor variable was bike fitting (yes, by the respondent, i.e. user bike fitting; yes, by a professional service; or no). Covariates included demographic and cycling profile characteristics. Logistic regression models estimated the odds of injury within the last 12 months, reporting a comfortable body posture while cycling, and not reporting pain while cycling. Odds ratios (OR) with 95% confidence intervals (CI) were reported. User bike fitting was associated with increased odds of reporting a comfortable posture (OR?=?2.28, 95%CI: 1.06, 4.68). User (OR?=?2.35; 95%CI: 1.48, 3.84) and professional bike fitting (OR?=?2.35; 95%CI: 1.42, 3.98) were both associated with increased odds of not reporting pain while cycling. No associations were found between bike fitting and injury within the last 12 months. In conclusion, we found an association between bike fitting and reported comfort and pain while cycling. We recommend integrating bike fitting into cycling maintenance. However, further studies with longer follow-up are necessary to determine the presence of an association between bike fitting and injury.  相似文献   

Hints for the improvement of quality teaching in introductory engineering statistics courses     

Felipe M. Aparicio Acosta 《European Journal of Engineering Education》2000,25(3):263-280

In recent years there has been a spectacular increase in concern within society about problems of service and, in particular, that of university teaching. Teaching quality can be understood as a goal to be achieved in three nurtured phases: course planning; the adoption of a methodological approach; and the evaluation of the results. The teaching of statistics in engineering schools raises common problems as well as certain others specific to each qualification. In this article, proposals are made about how to improve the quality of teaching of statistics to undergraduate engineering students.  相似文献   

Preparing school principals in the Chilean scenario: lessons from Australia,England and the United States     

Felipe Aravena 《Journal of educational administration and history》2016,48(4):342-357

In this paper will be analysed three different educational contexts for preparing school principals such as Australia, England and the United States. This study analyses the professional development of academic leadership in the countries previously mentioned in order to apply the successful aspects to the Chilean education system, a system greatly need of improvement. The main finding of this study is that school administrator development is unproductive when the administrators themselves are not given the power to make decisions such as selecting teaching staff and managing finances. In this context, legal and bureaucratic structures in Chile act as barriers in consolidating and practicing these new ideas and recommendations.  相似文献   

Binary Pathfinder: An improvement to the Pathfinder algorithm     

Vicente P. Guerrero-Bote  Felipe Zapico-Alonso  María Eugenia Espinosa-Calvo  Rocío Gmez Crisstomo  Flix de Moya-Anegn 《Information processing & management》2006,42(6):1484

The Pathfinder algorithm is widely used to prune social networks. The pruning maintains the geodesic distances between nodes. It has shown itself to be very useful in the analysis of, amongst others, citations in BIS (bibliometrics, informetrics, and scientometrics). It has even been proposed for the online display of the search results in an information retrieval system. However, its great time and space complexity limits its use in real-time applications and in networks of any considerable size.The present work describes an improved algorithm with considerably reduced time and space complexity. Its lower execution costs thus increase its applicability both in real time and to large networks.  相似文献   

Scholar commentary     

Socorro Herrera 《Teaching Education》2018,29(4):424-428

ABSTRACT

This commentary reflects upon the articles and purposes of this special issue, in the context of, growing numbers of students of color (SOCs) in K-12 schools who continue to be modally placed in classrooms with White teachers (e.g., Berry and Pour-Khorshid papers of this issue). Few institutional programs of Teacher Education seem able to effectually address this longstanding demographic challenge (e.g., Whitaker, et al. paper). Fewer still, impactfully retain SOCs for careers in K-12 settings (e.g., Morales paper). Nevertheless, second wave teacher identity studies are encouraging nuanced professional learning for White and other, K-12, candidates and teachers that encourages: critical consciousness about race and whiteness, metalogic talk about colorblindness, and closing the gap between rhetoric and genuinely antiracist actions in praxis with SOCs (e.g., Alvarez & Milner; Caldas; McManimon & Casey papers. Demonstrably, second-wave analyses are revealing much about evidentiary approaches for teacher education/learning that emphasize differential capacities for teaching SOCs. Nonetheless, further research is needed on strategies for addressing formidable challenges, such as those of defensiveness and White Fragility (e.g., Blaisedell paper). The papers of this special issue indicate that combining such research with ground-breaking approaches to race-visible education offers a promising path to the knowledge and praxis needed.  相似文献   

Layers of Influence: Exploring Institutional- and State-Level Effects on College Student Views Toward Access to Public Education for Undocumented Immigrants     

Juan C. Garibay  Felisha A. Herrera  Marc P. Johnston-Guerrero  Gina A. Garcia 《Research in higher education》2016,57(5):601-629

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Postretirement work from a gender perspective: in-depth analysis of the Chilean case     

Milda Galkutė  M. Soledad Herrera 《Educational gerontology》2020,46(11):696-714

ABSTRACT

Due to the ever-increasing life expectancy rates worldwide, there has been an emerging need to conduct more research on older adults’ participation in the labor market after reaching the state pension age. This study aims to analyze the factors associated with postretirement work in Chile, a country characterized by a strong persistence of a male-breadwinner model endorsed by deeply-rooted traditional gender roles, and at the same time characterized by a dual-earner model strongly encouraged by a neoliberal system. Relying on a gendered life course perspective and using a nationally representative survey, we conducted logistic regression analyses to explore how a number of cumulative advantages and disadvantages (such as work trajectory, job satisfaction, and caregiving duties) shape working beyond legal retirement age and the intrinsic motivation to continue working among economically active older adults in Chile. One of the main findings of the present study is that intrinsic motivation to continue working was a remarkably significant predictor of postretirement work among older Chilean adults, especially among women. The results also suggest that even though older women are motivated to continue working, the national labor market is unlikely to offer such possibility. The findings of this study have implications for practice in the sense that they demonstrate the imperative need for organizations to focus on intrinsic motivation-related factors in striving to improve employees’ willingness to stay within the company after the state pension age.  相似文献