A Kantian view of Suits’ Utopia: ‘a kingdom of autotelically-motivated game players’     

Francisco Javier Lopez Frias 《体育哲学杂志》2017,44(1):138-151

In this paper, I engage the debate on Suits’ theory of games by providing a Kantian view of Utopia. I argue that although the Kantian aspects of Suits’ approach are often overlooked in comparison to its Socratic-Platonic aspects, Kant’s ideas play a fundamental role in Suits’ proposal. In particular, Kant’s concept of ‘regulative idea’ is the basis of Suits’ Utopia. I regard Utopia as Suits’ regulative idea on game playing. In doing so, I take Utopia to play a double role in Suits’ theory of games. First, it highlights the primary condition of possibility of game-playing, namely, the lusory attitude. Second, it provides a normative criterion that serves as a critical principle to evaluate instances of game playing and as a counterfactual assumption that makes game playing possible. I provide further support for my Kantian interpretation of Suits’ Utopia by bringing to light the anthropological assumptions upon which Utopia is built. In doing so, I argue that both Suits’ theory of games, in general, and his Utopia, in particular, lay out the conditions of possibility of game playing, not an analysis on the life most worth living.  相似文献   

Psycho-physiological response in an automatic parachute jump     

Vicente Javier Clemente-Suárez  José Juan Robles-Pérez  Jesús Fernández-Lucas 《Journal of sports sciences》2017,35(19):1872-1878

Parachute jump is an extreme activity that elicits an intense stress response that affects jumpers’ body systems being able to put them at risk. The present research analysed modifications in blood oxygen saturation (BOS), heart rate (HR), cortisol, glucose, lactate, creatine kinase (CK), muscles strength, cortical arousal, autonomic modulation, pistol magazine reload time (PMRT) and state anxiety before and after an automatic open parachute jump in 38 male Spanish soldiers (25.6 ± 5.9 years). A MANOVA with samples as a fixed factor and Effect Size (ES) were conducted. MANOVA showed (Wilks lambda = .225; F = 5.980; P = .000) a significantly increase in cortisol (6.2 ± 3.2 vs. 8.2 ± 4.3 nmol/l; P = .025; ES = .47), HR (75.0 ± 14.6 vs. 87.4 ± 17.3 bpm; P = .004; ES = .72), lactate (1.8 ± 1.2 vs. 4.4 ± 2.2 mmol · l^?1; P = .002; ES = 1.18), sympathetic nervous system and leg strength manifestation after the parachute jump. By contrary BOS, PMRT (55.6 ± 27.6 vs. 48.0 ± 16.7 s; P = .021; ES = .46) and somatic anxiety (SA), evaluated by CSAI2R questionnaire, decreased. An automatic parachute jump increased physiological and cortical response and decreased SA of participants. This stress response can affect the jumpers’ abilities and allow us to have a better understanding of the organism stress response and to improve training for both military and sport parachute jumps.  相似文献   

Mediation role of cardiorespiratory fitness on the association between fatness and cardiometabolic risk in European adolescents: The HELENA study     

Carlos Cristi-Montero  Javier Courel-Ibez  Francisco B. Ortega  Jose Castro-Piero  Alba Santaliestra-Pasias  Angela Polito  Jrmy Vanhelst  Ascensin Marcos  Luis M. Moreno  Jonatan R. Ruiz  HELENA study group 《运动与健康科学(英文)》2021,10(3):360-367

PurposeThis study was aimed to analyze the mediation role of cardiorespiratory fitness (CRF) on the association between fatness and cardiometabolic risk scores (CMRs) in European adolescents.MethodsA cross-sectional study was conducted in adolescents (n = 525; 46% boys; 14.1 ± 1.1 years old, mean ± SD) from 10 European cities involved in the Healthy Lifestyle in Europe by Nutrition in Adolescence study. CRF was measured by means of the shuttle run test, while fatness measures included body mass index (BMI), waist to height ratio, and fat mass index estimated from skinfold thicknesses. A clustered CMRs was computed by summing the standardized values of homeostasis model assessment, systolic blood pressure, triglycerides, total cholesterol/high-density lipoprotein cholesterol ratio, and leptin.ResultsLinear regression models indicated that CRF acted as an important and partial mediator in the association between fatness and CMRs in 12–17-year-old adolescents (for BMI: coefficients of the indirect role β = 0.058 (95% confidence interval (95%CI): 0.023–0.101), Sobel test z = 3.11 (10.0% mediation); for waist to height ratio: β = 4.279 (95%CI: 2.242–7.059), z =3.86 (11.5% mediation); and for fat mass index: β = 0.060 (95%CI: 0.020–0.106), z = 2.85 (9.4% mediation); all p < 0.01).ConclusionIn adolescents, the association between fatness and CMRs could be partially decreased with improvements to fitness levels; therefore, CRF contribution both in the clinical field and public health could be important to consider and promote in adolescents independently of their fatness levels.  相似文献   

Activity profile of top-class association football referees in relation to performance in selected physical tests     

Mallo J  Navarro E  García-Aranda JM  Gilis B  Helsen W 《Journal of sports sciences》2007,25(7):805-813

The aims of the present study were (1) to analyse the physical demands of top-class referees and (2) to compare their official FIFA fitness test results with physical performance during a match. The work rate profiles of 11 international referees were assessed during 12 competitive matches at the 2003 FIFA Under-17 World Cup and then analysed using a bi-dimensional photogrammetric video analysis system based on direct lineal transformation (DLT) algorithms. In the first 15 min of matches, the referees were more active, performing more high-intensity exercise (P < 0.01) than in the first 15 min of the second half. During the second half of matches, the referees covered a shorter distance (P < 0.01), spent more time standing still (P < 0.05), and covered less ground cruising (P < 0.05), sprinting (P < 0.05), and moving backwards (P < 0.001) than in the first half. Also in the second 45 min, the distance of referees from infringements increased (P < 0.05) in the left attacking zone of the filed. There was also a decrease (P < 0.05) in performance in the period following the most high-intensity activity, compared with the mean for the 90 min. Time spent performing high-intensity activities during a match was not related to performance in the 12-min run (r(2) = 0.30; P < 0.05), the 200-m sprint (r(2) = 0.05; P < 0.05), or the 50-m sprint (r(2) = 0.001; P < 0.05). The results of this study show that: (1) top-class referees experienced fatigue at different stages of the match, and (2) the typical field tests used by FIFA (two 50-m and 200-m sprints, followed by a 12-min run) are not correlated with match activities.  相似文献   

Material Weathering and Structural Damage in Historic Adobe Constructions in Spain: Preliminary Results of a Quantitative Approach     

F. Javier Gómez-Patrocinio  Camilla Mileto  Lidia García-Soriano  Fernando Vegas López-Manzanares 《文物保护研究》2020,65(8):450-464

ABSTRACT

This article presents the study of the main phenomena of material weathering and structural damage that affect traditional architecture built in adobe, analysing the damage found in 553 case studies, representative of different technical varieties of adobe construction in Spain. The analysis methodology proposed in this text made it possible to quantify and identify the risks of damage appearing, establishing its impact and identifying its main mechanisms and causes. At the same time, the behaviour of adobe construction systems was further studied, observing how specific modifications in technique can promote or hinder deterioration and establishing the probable causes of the different responses to these phenomena.  相似文献   

Is possible an eccentric overload in a rotary inertia device? Comparison of force profile in a cylinder-shaped and a cone-shaped axis devices     

F. Javier Núñez  Carlos Galiano  Alejandro Muñoz-López  Pablo Floria 《Journal of sports sciences》2020,38(14):1624-1628

ABSTRACT

The aims of this study were to compare the force profile of using a horizontal cylinder-shaped axis or a vertical cone-shaped axis to provide resistance in rotary inertia devices, and to report the evolution of kinetic and kinematic variables in experienced athletes during a half-squat exercise. Twenty-two healthy active men participated in the assessment of time, peak velocity, peak force, time to reach the peak force, average force, impulse, and range of movement, during a half-squat incremental test performed on conical inertial device (CP) and on cylinder inertial device (YY). The analysis showed that YY during CON-ECC phased generates substantial higher peak_force, mean_force, impulse, time, and a lower peak_velocity, than CP. We never obtained eccentric overload for peak_force or mean_force. CP offers less resistance to accelerate-decelerate the movement with respect to YY, we need checking whether eccentric overload it is being produced, and the impulse was the only kinetic variable that was able to discriminate between the inertias and devices.  相似文献   

Quantitative evaluation of alternative field normalization procedures     

Yunrong Li  Filippo Radicchi  Claudio Castellano  Javier Ruiz-Castillo 《Journal of Informetrics》2013,7(3):746-755

Wide differences in publication and citation practices make impossible the direct comparison of raw citation counts across scientific disciplines. Recent research has studied new and traditional normalization procedures aimed at suppressing as much as possible these disproportions in citation numbers among scientific domains. Using the recently introduced IDCP (Inequality due to Differences in Citation Practices) method, this paper rigorously tests the performance of six cited-side normalization procedures based on the Thomson Reuters classification system consisting of 172 sub-fields. We use six yearly datasets from 1980 to 2004, with widely varying citation windows from the publication year to May 2011. The main findings are the following three. Firstly, as observed in previous research, within each year the shapes of sub-field citation distributions are strikingly similar. This paves the way for several normalization procedures to perform reasonably well in reducing the effect on citation inequality of differences in citation practices. Secondly, independently of the year of publication and the length of the citation window, the effect of such differences represents about 13% of total citation inequality. Thirdly, a recently introduced two-parameter normalization scheme outperforms the other normalization procedures over the entire period, reducing citation disproportions to a level very close to the minimum achievable given the data and the classification system. However, the traditional procedure of using sub-field mean citations as normalization factors yields also good results.  相似文献   

Cognitive-operative model of intelligent learning systems behavior     

Ana Lilia Laureano-Cruces  Javier Ramírez-Rodríguez  Martha Mora-Torres  Fernando de Arriaga  Rafael Escarela-Pérez 《Interactive Learning Environments》2013,21(1):11-38

In this paper behavior during the teaching–learning process is modeled by means of a fuzzy cognitive map. The elements used to model such behavior are part of a generic didactic model, which emphasizes the use of cognitive and operative strategies as part of the student–tutor interaction. Examples of possible initial scenarios for the teaching–learning process are developed, along with the results provided by the model.  相似文献   

Adequate policies and unintended effects in Spanish higher education     

José‐Ginés Mora  Javier Vidal 《Tertiary Education and Management》2013,19(4):247-258

Abstract

Recent developments in Spanish higher education have been very positive. Universities have become autonomous and are more in tune to regional needs, their internal structure has become flexible, the whole system has become open and accessible, funds have been poured into the system as never before and market forces have started to play a relevant role. Nevertheless, some perverse effects have begun to emerge. We will focus on some of these negative aspects that deserve deeper consideration: the inadequate adaptation to a mass higher education system, and the negative consequences of the collegial model for governing universities and of regionalization.  相似文献   

Good Effective School Improvement Practices in Spain     

F. Javier Murillo 《Educational Research and Evaluation》2013,19(4):387-410

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