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71.
72.
Leda Maria da Costa 《Soccer & Society》2014,15(1):81-92
This essay offers a brief historical background to the evolution of women’s soccer in Brazil. It focuses on the main obstacles women faced to pursue the game, which was forbidden to women in Brazil in 1941. By analysing how the newspapers treat women’s teams, the essay will try to highlight significant changes in the stereotypes that long guided perceptions of people about women soccer players. 相似文献
73.
Eric D. Ryan Trent J. Herda Pablo B. Costa Jason M. Defreitas Travis W. Beck Jeffrey Stout 《Journal of sports sciences》2013,31(9):957-961
Abstract In this study, we examined the minimum number of constant-torque passive stretches necessary to reduce musculotendinous stiffness. Thirteen healthy individuals (mean age 22 years, s = 3; stature 1.67 m, s = 0.1; mass 66 kg, s = 13 kg) volunteered to participate in the investigation and underwent four 30-s constant-torque passive stretches of the plantar flexor muscles. Musculotendinous stiffness was examined from the angle–torque curves generated prior to the passive stretches, at the beginning of each 30-s stretch, and immediately following the four 30-s passive stretches. The results indicated that musculotendinous stiffness of the plantar flexors was reduced following two 30-s constant-torque passive stretches (P < 0.05) compared with the pre- musculotendinous stiffness assessment. Musculotendinous stiffness remained depressed following the third and fourth stretches, but did not decrease further. These findings suggest that two 30-s bouts of constant-torque passive stretching may be necessary to cause a significant decrease in musculotendinous stiffness of the plantar flexor muscles. 相似文献
74.
Rochelle Rocha Costa Carmen Pilla Adriana Cristine Koch Buttelli Michelle Flores Barreto Priscila Azevedo Vieiro Cristine Lima Alberton 《Research quarterly for exercise and sport》2018,89(2):173-182
Purpose: This study aimed to investigate the effects of water-based aerobic training on the lipid profile and lipoprotein lipase (LPL) levels in premenopausal women with dyslipidemia. Method: Forty women were randomly assigned to: aquatic training (WA; n = 20) or a control group (CG; n = 20). The WA group underwent 12 weeks of water-based interval aerobic training twice a week at intensities ranging from 9 to 15 on the Borg Scale of Perceived Exertion. Total cholesterol (TC), triglycerides (TG), high- (HDL) and low- (LDL) density lipoprotein, TC/HDL ratio, LPL levels, and peak oxygen consumption (VO2peak) were evaluated before and after 12 weeks in both groups. Results: The WA group elicited decreases in TC (9%; effect size [ES] = 0.69; 95% CI [0.05, 1.33]), LDL (16%; ES = 0.78; 95% CI [0.13, 1.42]), and the TC/HDL ratio (17%; ES = 1.13; 95% CI [0.46, 1.79]), as well as increases in VO2peak (10%; ES = 0.64; 95% CI [0.002, 1.27]) and HDL (10%; ES = 0.28; 95% CI [?0.35. 0.90]), without significant changes in TG (ES = 0.16; 95% CI [?0.46, 1.79]) and LPL (ES = 0.36; 95% CI [?0.27, 0.98]) levels. In the CG, no statistically significant changes in any of these variables were found (TC, ES = 0.19, 95% CI [?0.43, 0.82]; LDL, ES = 0.22, 95% CI [?0.40, 0.85]; HDL, ES = 0.05, 95% CI [?0.57, 0.67]; TG, ES = 0.09, 95% CI [?0.53, 0.71]; TC/HDL ratio, ES = 0.20, 95% CI [?0.42, 0.82]; LPL, ES = 0.02, 95% CI [?0.60, 0.64]; VO2peak, ES = 0.20, 95% CI [?0.42, 0.82]). Conclusion: Water-based interval aerobic training positively affected the lipid profile in premenopausal dyslipidemic women. 相似文献
75.
Luís Miguel Carvalho Estela Costa 《Discourse: Studies in the Cultural Politics of Education》2015,36(5):638-646
The paper addresses the Organization for Economic Cooperation and Development's Program for International Student Assessment (PISA) as a public policy instrument, whose worldwide circulation is mediated by processes of reinterpretation, negotiation, and re-contextualization, where national, local, and international agencies intertwine. It is focused on the active reception of PISA in six European spaces (Francophone Belgium, France, Hungary, Portugal, Romania, and Scotland) along its first three cycles. The paper identifies two contrasting developments: the Program's divergent uses and its attractiveness in different social worlds. The paper gives particular attention to what is called the ‘update of reference societies’ in the context of national receptions of PISA. These ‘updates’ are analyzed as part of a composite process that involves domestic reasons, either related to current agendas for education or to deep historical factors, and injunctions related to PISA's rationale and PISA objects. 相似文献
76.
This study examines physical education pre-service teachers’ (PTs) self-efficacy and practicum experiences as self-efficacy sources through a mixed-method approach. For the quantitative phase, a self-efficacy questionnaire was applied to 141 PTs. Results showed a stronger self-efficacy in the relationship with students and discipline promotion. Lower self-efficacy was linked to instructional strategies. Concerning the qualitative phase, eight PTs were interviewed. PTs with higher self-efficacy reported professional experiences before practicum as mastery experiences. During the practicum they highlighted as mastery experiences: classes’ characteristics, planning and teaching practice; lesson observation as vicarious experiences; and post-lesson conversations as verbal persuasion. PTs with lower self-efficacy reported classes’ characteristics and teaching practice as failure experiences. Lesson observation was linked to negative vicarious experiences and post-lesson conversations were associated to negative emotions and the absence of verbal persuasion. This study’s results have implications inasmuch as they confirm the role of the practicum in teacher education programmes and the importance of training supervisors in the implementation and management of the training experience, thus contributing to PTs’ self-efficacy development. 相似文献
77.
Baptista Geilsa Costa Santos Santos Rodrigo da Silva Cobern William W. 《International Journal of Science and Mathematics Education》2015,13(2):309-329
This study analyzes six seventh grade Israeli mathematics textbooks, examining (1) the extent to which students are required to justify and explain their mathematical work, and (2) whether students are asked to justify a mathematical claim that is stated by the textbook or a mathematical claim that they themselves generated when solving a problem. Two different units of analysis were used to analyze two central topics in the seventh grade curriculum as follows: (1) equation solving in algebra and (2) triangle properties in geometry. The findings indicate that all six textbooks had considerably larger percentages of geometric tasks than algebraic tasks, which required students to justify or explain their mathematical work. Moreover, considerable differences were found among the six textbooks regarding the percentages of tasks that required students to justify and explain in both topics, but more so with the algebraic topic. Analysis of whether the textbook tasks required students to justify a mathematical claim that is stated by the textbook or a mathematical claim that the students themselves generated also revealed substantial differences among the textbooks. These findings are discussed, as well as the research methods used, in light of relevant literature. 相似文献
78.
The purpose of this paper is to make a contribution to a further understanding of the implications of the growing presence of foreign affiliates for deepening technological capabilities (TCs) in Brazilian industry. It proposes a TC classification that emphasises the distinction between the use and generation of knowledge and presents a methodology for composing TC proxies by means of an innovation survey database. The findings suggest that both foreign and domestics firms have accumulated substantial capabilities for using existing technology, but only shallow capabilities for locally generating technologies. However, foreign affiliates score higher than their local counterparts in more complex capabilities, confirming their centrality in the Brazilian learning system. This gives ground for urging the elaboration of strategic foreign direct investment (FDI) policies that strengthen and deepen local TCs. 相似文献
79.
Pina Filippello Caterina Buzzai Sebastiano Costa Susanna Orecchio Luana Sorrenti 《Psychology in the schools》2020,57(1):5-16
Although several studies have investigated the roles of teaching practices during the learning process on students, the role of school learned helplessness (LH) and mastery orientation (MO) has not been deeply examined. The present study aimed to verify the dynamics between academic achievement and the perception of the students of their teacher's psychological control and autonomy support by examining the mediating role of school LH and MO. Results confirmed that perceived teacher psychological control can predict school LH, whereas perceived teacher autonomy support can predict school MO. Additionally, academic achievement was positively predicted by school MO, whereas it was negatively predicted by school LH. Finally, analyses have shown that school LH and MO play a mediating role in the relationship between academic achievement and the perceived teacher autonomy support and psychological control. Limitations and implications are discussed. 相似文献
80.
Tiago Julio Costa Pereira Fábio Yuzo Nakamura Mayra Tardelli de Jesus Claudio Luís Roveri Vieira Milton Shoiti Misuta Ricardo Machado Leite de Barros 《Journal of sports sciences》2017,35(4):361-368
The purpose of this study was to analyse the physical and technical performances of professional tennis players during official matches. The trajectories of eight players were obtained during matches, using an automatic tracking method. The distances covered and technical performances were analysed for the first and second sets. The athletes covered (mean ± standard deviation) a total of 1702.4 ± 448.2 m in the first set, 1457.6 ± 678.1 m in the second set and 3160.0 ± 880.1 in the entire match. No differences were found between the sets for the physical variables (lateral and forward displacements, distance covered per rally, per game and per set, and the percentage of time spent in each range of velocity). However, the distances covered by the athletes during the rallies in which they were serving (median = 5.2; interquartile range (IQR) = 6.7 m) were statistically smaller than when they were returning (median = 6.2; IQR = 7.7 m). Forehand ground stroke proficiency decreased from the first (mean ± standard deviation: 75.2 ± 4.11%) to the second set (mean ± standard deviation = 65.5 ± 14.3%). In conclusion, tennis players did not present reduced physical performance from the first to the second set. 相似文献