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501.
Diego Trevisan Brunelli Ariel Rodrigues Wendell Arthur Lopes Arthur Fernandes Gáspari Valéria Bonganha Paulo César Montagner 《Journal of sports sciences》2013,31(11):1050-1059
AbstractThe objective of the present study was to monitor the immunological and hormonal responses and the occurrence of upper respiratory symptoms in adolescent basketball athletes during the different stages of a sports season. Anthropometric measures, biochemical analyses (interleukin-6, interleukin-10, tumour necrosis factor-alpha, C-reactive protein, testosterone and cortisol), neuromuscular evaluations (standing vertical jumping ability, agility and estimated VO2max) and leukocyte counts were performed at four moments: 72 h before the season (?72 h); before the season (Pre-season); after six weeks, at the end of the preparatory period (Preparatory); and after 20 weeks, at the end of the competitive period (Competitive). Also, the occurrence of upper respiratory symptoms was collected weekly during all stages of the season. There were significant increases in monocytes, cortisol, tumour necrosis factor-alpha and C-reactive protein at the Competitive moment as compared to the Pre-season. In addition, interleukin-10 decreased at the Competitive moment as compared to the Pre-season. Occurrence of upper respiratory symptoms demonstrated increases (38%) during the competitive period as compared to the preparatory. These results suggest that periods of training and competition could increase the occurrence of upper respiratory symptoms in adolescent athletes and this may be due to the unwanted effects of an inflammatory process in response to the excessive stress of training and competition. 相似文献
502.
Luis Paulo Rodrigues Linda Saraiva Carl Gabbard 《Research quarterly for exercise and sport》2013,84(2):140-148
A contemporary view of early childhood motor development considers environmental influences as critical factors in optimal growth and behavior, with the home being the primary agent. However, there has been minimal research examining the relationship between motor development and the home. The present study addresses this gap with the goal of creating an innovative parental self-report instrument to assess the quality and quantity of factors (affordances and events) in the home that are conducive to enhancing motor development in children ages 18–42 months. Following initial face validity determination, expert opinion feedback and selective pilot testing, construct validity was examined using 321 Portuguese families. Factor analysis techniques were used to: (a) compare competing factorial models according to previous theoretical assumptions, and (b) analyze the fit of the preferred model. Of the five plausible models tested, the five-factor solution provided the best fit to the data. Reliability was established through the scale reliability coefficient with a value of .85. The findings of this study suggest that the Affordances in the Home Environment for Motor Development Self-Report is a valid and reliable instrument to assess how well home environments afford movement and potentially promote motor development. 相似文献
503.
The Urban Review - This article concentrates on the educational experiences of urban and suburban Mexican American youth, from recent immigrants to those that have been in the United States for... 相似文献
504.
505.
Mónica Vallejo-Ruiz Antonio Fernández-Cano Manuel Torralbo Alexander Maz Luis Rico 《International Journal of Science and Mathematics Education》2008,6(2):313-327
This article offers an overview of mathematics education in Spain, analyzing the production of PhD theses over the last 30 years.
This period has been divided into four cycles that describe the evolution of Spanish research in the field of mathematics
education, together with changes in university and social politics. This paper also includes a forecast of the number of theses
that will be produced over the next 7 years, thus predicting the future progress and development of this area of research. 相似文献
506.
The goal of this study was to explore the effectiveness of a short web-based tutorial in helping teachers to better understand the portrayal of measurement error in test score reports. The short video tutorial included both verbal and graphical representations of measurement error. Results showed a significant difference in comprehension scores between each of two tutorial groups (basic and enhanced) and the control group (no tutorial) but not between the two tutorial groups. Results also provided evidence of teachers' misconceptions about the meaning of measurement error and confidence bands. 相似文献
507.
Llinás Julia Gil Macías Francisco Solano Márquez Luis Manuel Tobaja 《Research in Science Education》2020,50(5):1789-1804
Research in Science Education - The aim of the present research was to explore the use of concept maps as an assessment tool. The research question posed was: can concept maps be used to... 相似文献
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509.
English language abstract not available at time of publication. 相似文献
510.
Jerrim John Lopez-Agudo Luis Alejandro Marcenaro-Gutierrez Oscar David 《Educational Assessment, Evaluation and Accountability》2022,34(3):331-359
Educational Assessment, Evaluation and Accountability - Grade retention has been the focus of the education debate in Spain for decades. On average, more than 30% of students have repeated at least... 相似文献