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This article seeks to determine whether 2 common management strategies, representative bureaucracy and personnel stability, can be used in combination with each other in order to improve educational policy outcomes for Latinos. Using data from Texas school districts from 1994 to 2010 and a cross-sectional longitudinal research design, I find that although each theory on its own improved outcomes for Latinos, the 2 did not have a significant combined effect. Instead I find evidence of a substitution effect that allows 1 strategy to be used in place of the other in order to improve the academic performance of Latinos.  相似文献   
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The aim of this study was to quantify the physiological loads of programmed "pre-season" and "in-season" training in professional soccer players. Data for players during each period were included for analysis (pre-season, n = 12; in-season, n = 10). We monitored physiological loading of training by measuring heart rate and rating of perceived exertion (RPE). Training loads were calculated by multiplying RPE score by the duration of training sessions. Each session was sub-categorized as physical, technical/tactical, physical and technical/tactical training. Average physiological loads in pre-season (heart rate 124 ± 7 beats · min(-1); training load 4343 ± 329 Borg scale · min) were higher compared with in-season (heart rate 112 ± 7 beats · min(-1); training load 1703 ± 173 Borg scale · min) (P < 0.05) and there was a greater proportion of time spent in 80-100% maximum heart rate zones (18 ± 2 vs. 5 ± 2%; P < 0.05). Such differences appear attributable to the higher intensities in technical/tactical sessions during pre-season (pre-season: heart rate 137 ± 8 beats · min(-1); training load 321 ± 23 Borg scale · min; in-season: heart rate 114 ± 9 beats · min(-1); training load 174 ± 27 Borg scale · min; P < 0.05). These findings demonstrate that pre-season training is more intense than in-season training. Such data indicate that these adjustments in load are a direct attempt to deliver training to promote specific training adaptations.  相似文献   
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The aim of this study was to objectively quantify ratings of perceived enjoyment using the Physical Activity Enjoyment Scale following high-intensity interval running versus moderate-intensity continuous running. Eight recreationally active men performed two running protocols consisting of high-intensity interval running (6 × 3 min at 90% VO(2max) interspersed with 6 × 3 min active recovery at 50% VO(2max) with a 7-min warm-up and cool down at 70% VO(2max)) or 50 min moderate-intensity continuous running at 70% VO(2max). Ratings of perceived enjoyment after exercise were higher (P < 0.05) following interval running compared with continuous running (88 ± 6 vs. 61 ± 12) despite higher (P < 0.05) ratings of perceived exertion (14 ± 1 vs. 13 ± 1). There was no difference (P < 0.05) in average heart rate (88 ± 3 vs. 87 ± 3% maximum heart rate), average VO(2) (71 ± 6 vs. 73 ± 4%VO(2max)), total VO(2) (162 ± 16 vs. 166 ± 27 L) or energy expenditure (811 ± 83 vs. 832 ± 136 kcal) between protocols. The greater enjoyment associated with high-intensity interval running may be relevant for improving exercise adherence, since running is a low-cost exercise intervention requiring no exercise equipment and similar relative exercise intensities have previously induced health benefits in patient populations.  相似文献   
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We draw upon transformational leadership theory to develop an instrument to measure transformational parenting for use with adolescents. First, potential items were generated that were developmentally appropriate and evidence for content validity was provided through the use of focus groups with parents and adolescents. We subsequently provide evidence for several aspects of construct validity of measures derived from the Transformational Parenting Questionnaire (TPQ). Data were collected from 857 adolescents (M(age) = 14.70 years), who rated the behaviors of their mothers and fathers. The results provided support for a second-order measurement model of transformational parenting. In addition, positive relationships between mothers' and fathers' transformational parenting behaviors, adolescents' self-regulatory efficacy for physical activity and healthy eating, and life satisfaction were found. The results of this research support the application of transformational leadership theory to parenting behaviors, as well as the construct validity of measures derived from the TPQ.  相似文献   
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The flipped classroom (FC) model has emerged as an innovative solution to improve student‐centered learning. However, studies measuring student performance of material in the FC relative to the lecture classroom (LC) have shown mixed results. An aim of this study was to determine if the disparity in results of prior research is due to level of cognition (low or high) needed to perform well on the outcome, or course assessment. This study tested the hypothesis that (1) students in a FC would perform better than students in a LC on an assessment requiring higher cognition and (2) there would be no difference in performance for an assessment requiring lower cognition. To test this hypothesis the performance of 28 multiple choice anatomy items that were part of a final examination were compared between two classes of first year medical students at the University of Utah School of Medicine. Items were categorized as requiring knowledge (low cognition), application, or analysis (high cognition). Thirty hours of anatomy content was delivered in LC format to 101 students in 2013 and in FC format to 104 students in 2014. Mann Whitney tests indicated FC students performed better than LC students on analysis items, U = 4243.00, P = 0.030, r = 0.19, but there were no differences in performance between FC and LC students for knowledge, U = 5002.00, P = 0.720 or application, U = 4990.00, P = 0.700, items. The FC may benefit retention when students are expected to analyze material. Anat Sci Educ 10: 170–175. © 2016 American Association of Anatomists.  相似文献   
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