排序方式： 共有38条查询结果，搜索用时 15 毫秒
11.
Simone J.J.M.Verswijveren Karen E.Lamb Josep A.Martín-Fernández Elisabeth Winkler Rebecca M.Leech Anna Timperio Jo Salmon Robin M.Daly Ester Cerin David W.Dunstan Rohan M.Telford Richard D.Telford Lisa S.Olive Nicola D.Ridgers 《运动与健康科学(英文)》2022,11(2):234-243
Purpose:The study aimed to describe youth time-use compositions,focusing on time spent in shorter and longer bouts of sedentary behavior and physical activity(PA),and to examine associations of these time-use compositions with cardiometabolic biomarkers.Methods:Accelerometer and cardiometabolic biomarker data from 2 Australian studies involving youths 7-13 years old were pooled(complete cases with accelerometry and adiposity marker data,n=782).A 9-component time-use composition was formed using compositional data analysis:time in shorter and longer bouts of sedentary behavior;time in shorter and longer bouts of light-,moderate-,or vigorous-intensity PA;and"other time"(i.e.,non-wear/sleep).Shorter and longer bouts of sedentary time were defined as<5 min and>5 min,respectively.Shorter bouts of light-,moderate-,and vigorous-intensity PA were defined as<1 min;longer bouts were defined as≥1 min.Regression models examined associations between overall time-use composition and cardiometabolic biomarkers.Then,associations were derived between ratios of longer activity patterns relative to shorter activity patterns,and of each intensity level relative to the other intensity levels and"other time",and cardiometabolic biomarkers.Results:Confounder-adjusted models showed that the overall time-use composition was associated with adiposity,blood pressure,lipids,and the summary score.Specifically,more time in longer bouts of light-intensity PA relative to shorter bouts of light-intensity PA was significantly associated with greater body mass index z-score(zBMI)(β=1.79;SE=0.68)and waist circumference(β=18.35,SE=4.78).When each activity intensity was considered relative to all higher intensities and"other time",more time in light-and vigorous-intensity PA,and less time in sedentary behavior and moderate-intensity PA,were associated with lower waist circumference.Conclusion:Accumulating PA,particularly light-intensity PA,in frequent short bursts may be more beneficial for limiting adiposity compared to accumulating the same amount of PA at these intensities in longer bouts. 相似文献
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Falomo Bernarduzzi Lidia Bernardi Ester Maria Ferrari Alberto Garbarino Maria Carla Vai Andrea 《Science & Education》2021,30(3):755-773
Science & Education - The Pavia University History Museum, which houses historic items mainly connected to the physics and medicine fields, has focused in the past years on new ways to involve... 相似文献
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Sands&#;r Astrid Marie Jorde Hovdhaugen Elisabeth B&#;ckmann Ester 《Higher Education》2022,83(2):379-394
Higher Education - This paper uses register data to study how a particular age reward feature affects admission into two highly competitive study programs: medicine and law. The Norwegian admission... 相似文献
14.
This qualitative study inquired into secondary students' perceptions of their participation in a secondary Spanish-English two-way immersion (TWI) program, triangulating data from 166 surveys and 24 focus interviews across grades 6–12. After reviewing current research on secondary two-way immersion programs, the article describes the study and its findings. The first finding stresses the continuous link between language and identity and how this link differs within the Latino group. A second theme centered on how students viewed the linguistic and cultural capital the TWI program aims to develop, with the Anglo students identifying bilingualism for better job opportunities as the most important capital. Latino students also envisioned better job opportunities; however, Spanish was valued foremost for its connection to their families and roots. Finally, the third theme discusses linguistic and cultural equity. Though all students evaluated their experiences in the TWI program positively, they acknowledged that as they moved through the secondary years, their exposure to Spanish declined and English dominated their school day. The authors urge educators to consider how the academic, linguistic, and cultural benefits of TWI programs are distributed for various groups enrolled in the program. 相似文献
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Stephen F Burns Heather Corrie Ester Holder Thomas Nightingale David J Stensel 《Journal of sports sciences》2013,31(3):251-260
This study investigated the effect of a single session of resistance exercise on postprandial lipaemia. Eleven healthy normolipidaemic men with a mean age of 23 (standard error = 1.4) years performed two trials at least 1 week apart in a counterbalanced randomized design. In each trial, participants consumed a test meal (1.2?g fat, 1.1?g carbohydrate, 0.2?g protein and 68 kJ?·?kg?1 body mass) between 08.00 and 09.00?h following a 12?h fast. The afternoon before one trial, the participants performed an 88?min bout of resistance exercise. Before the other trial, the participants were inactive (control trial). Resistance exercise was performed using free weights and included four sets of 10 repetitions of each of 11 exercises. Sets were performed at 80% of 10-repetition maximum with a 2?min work and rest interval. Venous blood samples were obtained in the fasted state and at intervals for 6?h postprandially. Fasting plasma triacylglycerol (TAG) concentration did not differ significantly between control (1.03?±?0.13?mmol?·?l?1) and exercise (0.94?±?0.09?mmol?·?l?1) trials (mean?± standard error). Similarly, the 6?h total area under the plasma TAG concentration versus time curve did not differ significantly between the control (9.84?±?1.40?mmol?·?l?1?·?6?h?1) and exercise (9.38?±?1.12?mmol?·?l?1?·?6?h?1) trials. These findings suggest that a single session of resistance exercise does not reduce postprandial lipaemia. 相似文献
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We investigate the determinants of innovation activity making a distinction between product and process innovations. We analyse a pseudo production function of innovations where among the explanatory variables, special attention is paid to firm and market characteristics. The study is applied to a large sample of Spanish manufacturing firms during the period 1990–1993. There are important implications arising from the empirical results: 1) Product and process innovations are intimately related independently of the model used in the estimation. 2) The control by unobserved firm effects as the ability and experience of manager is so important as to affect the conclusions on the managerial decisions about which type of innovation develop. 3) Given the feedback effects amongst innovation decisions and other factors determining them, it is also very important to consider a version of the model that allows correlation among those unobserved effects and explanatory variables. 4) The probability to innovate is higher in capital intensive firms and in firms with export activities. 5) Market competition encourages the decision to innovate up to a threshold. vi) The past firm experience and the managerial quality play a significant role in the probability to innovate. vii) Product and process innovation decisions are complementary. 相似文献
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Freitas Maria Ester de Bertero Carlos Osmar Fleury Maria Tereza Leme Mariotto Fábio Luiz Silva André Luis 《Tertiary Education and Management》2016,22(4):267-286
This article analyzes the theoretical and practical aspects of the academic internationalization process, through the main events and pathways developed over the 60 years of the EAESP/FGV, the São Paulo Business School of the Getulio Vargas Foundation (Brazil). A survey was conducted of former directors, coordinators of the main international programs and all school faculty (266 professors) about their training and international activities. EAESP/FGV has developed a diverse and consolidated international career, surpassing the activities related to teaching and student mobility. However, there are some opportunities to deepen internationalization as a strategic brand of the institution. 相似文献
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This study examines the interaction effects of camera perspectives used to portray a victim of a social problem and the sex of audience members on empathy and intentions to help people sharing the victim's problem. As predicted, the study found interaction effects for camera perspectives and viewers' sex on empathy and care for the victim group. The findings corroborate not only the role played by empathy in inducing care for people in need but also the parallels between one's real and mediated experiences. Most importantly, the findings contribute to our understanding of how media portrayals of human suffering can increase empathy for those in need. 相似文献
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Antonio Roberto Zamunér Ester Silva Rosana Macher Teodori Aparecida Maria Catai Marlene Aparecida Moreno 《Journal of sports sciences》2013,31(4):396-404
Abstract This study aimed to evaluate the autonomic modulation of heart rate in sedentary paraplegics and paraplegic wheelchair basketball players with thoracic spinal cord injury below T6. Seven paraplegic wheelchair basketball players (active paraplegic group), five paraplegics who were not involved in regular exercise (sedentary paraplegic group) and 10 able-bodied participants (control group) took part in the study. The heart rate variability was evaluated by linear (low frequency and high frequency band in normalised units and low frequency/high frequency ratio) and nonlinear methods (Shannon entropy, corrected conditional entropy, and symbolic analysis). The sedentary group presented significantly higher values for low frequency, low frequency/high frequency ratio and symbolic index with no significant variations (0V%), and also lower values for the high frequency and symbolic index with two significant unlike variation (2ULV%) compared to active paraplegic group. Shannon entropy and corrected conditional entropy analyses revealed significantly lower values in the sedentary group than in the control or active paraplegic groups. Paraplegic individuals who regularly undertake physical exercise have higher complexity of R-R interval time series, lower sympathetic modulation, and higher parasympathetic modulation than sedentary paraplegic participants. 相似文献