Counterfactuals all the way down?     

Jim Woodward  Barry Loewer  John W. Carroll  Marc Lange 《Metascience》2011,20(1):27-52

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Food Science Education Publications and Websites     

Jim Bird 《Journal of Food Science Education》2012,11(2):6-7

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Call for Papers: Celebrating the Legacy of George and Annemarie Roeper on the 75th Anniversary of the Opening of the Roeper School     

Guest Editors: Jim Delisle  Robert Schultz 《Roeper Review》2013,35(4)

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A Descriptive Analysis of Elite-Level Racquetball     

Alan W. Salmoni  Ken Sidney  Robin Michel  Jim Hiser  Kathy Langlotz 《Research quarterly for exercise and sport》2013,84(1):109-114

In this study, we used social cognitive career theory (Lent, Brown, &; Hackett, 1994) to examine the development of female athletes' career interest in coaching and, specifically, the impact of contextual factors (female coaching role models, working hours, and perceived discrimination) on coaching self-efficacy and outcome expectations. Participants were 205 predominantly White, heterosexual female student athletes. A path analysis indicated that role models and working hours predicted coaching self-efficacy, which predicted coaching outcome expectations. Additionally, coaching self-efficacy, coaching outcome expectations, and contextual factors predicted coaching interest. Practical implications are discussed as well as suggestions for further research in this relatively unexplored area.  相似文献   

基于标准的评核：教育领域人力资本和能力提升的工具与方法     

Jim Tognolini  Gordon Stanley  杜承达 《考试研究》2010,(2):4-20

本文概述了一种评核概念和理论，即基于标准的评核。这种评核模式通过把学生的成绩和他们的知识、课程标准联系起来，给学生的学习成绩赋予意义。它有效地将评核的焦点从对成绩排名的关注（仅仅把学生的表现与同学相比较）转移到了对学生学习进步的关注上来。本文关注这一转变过程，并为这一评核方式的实施提供可能的策略。同时，本文认为这一评核体系将会对教育中人力资本和能力提升产生深远的影响。  相似文献   

A Tale of Two Presidents: The Rise and Fall of Division I Athletics at Birmingham-Southern College     

Jim Watkins 《国际体育史杂志》2017,34(11):1088-1111

Abstract

In 1999, Birmingham-Southern College (BSC) announced that they were leaving the National Association of Intercollegiate Athletics to join the highest rank of the National Collegiate Athletic Association-Division I. While competing in Division I, the size of BSC’s athletic budget was in the bottom 10 per cent. By 2006, the Board of Trustees at Birmingham-Southern voted to reclassify to Division III. Why did Birmingham-Southern decide to enter Division I? How did the academic mission of Birmingham-Southern play a role in the rise to Division I or the fall to Division III? What role, if any, did the presidents of Birmingham-Southern play in its joining and leaving Division I? One reason Birmingham-Southern decided to compete at the Division I level was because their leaders believed in the ‘Flutie Factor’, which is the concept that athletic success will benefit the entire institution. BSC’s transition into Division I during 1999 suggests that the commercialization of big-time college athletics encourages presidents to overemphasize athletics, and that they face little opposition when doing so. Moreover, the opposition to BSC’s reclassification into Division III during 2006 suggests that presidents face more resistance when attempting to lead their college into a less prestigious level of competition, even if the move better fits the college’s academic mission.  相似文献   

Sprint performance and mechanical outputs computed with an iPhone app: Comparison with existing reference methods     

Natalia Romero-Franco  Pedro Jiménez-Reyes  Adrián Castaño-Zambudio  Fernando Capelo-Ramírez  Juan José Rodríguez-Juan  Jorge González-Hernández 《European Journal of Sport Science》2017,17(4):386-392

The purpose of this study was to assess validity and reliability of sprint performance outcomes measured with an iPhone application (named: MySprint) and existing field methods (i.e. timing photocells and radar gun). To do this, 12 highly trained male sprinters performed 6 maximal 40-m sprints during a single session which were simultaneously timed using 7 pairs of timing photocells, a radar gun and a newly developed iPhone app based on high-speed video recording. Several split times as well as mechanical outputs computed from the model proposed by Samozino et al. [(2015). A simple method for measuring power, force, velocity properties, and mechanical effectiveness in sprint running. Scandinavian Journal of Medicine & Science in Sports. https://doi.org/10.1111/sms.12490] were then measured by each system, and values were compared for validity and reliability purposes. First, there was an almost perfect correlation between the values of time for each split of the 40-m sprint measured with MySprint and the timing photocells (r?=?0.989–0.999, standard error of estimate?=?0.007–0.015?s, intraclass correlation coefficient (ICC)?=?1.0). Second, almost perfect associations were observed for the maximal theoretical horizontal force (F₀), the maximal theoretical velocity (V₀), the maximal power (P_max) and the mechanical effectiveness (DRF – decrease in the ratio of force over acceleration) measured with the app and the radar gun (r?=?0.974–0.999, ICC?=?0.987–1.00). Finally, when analysing the performance outputs of the six different sprints of each athlete, almost identical levels of reliability were observed as revealed by the coefficient of variation (MySprint: CV?=?0.027–0.14%; reference systems: CV?=?0.028–0.11%). Results on the present study showed that sprint performance can be evaluated in a valid and reliable way using a novel iPhone app.  相似文献   

Validity of the “Samsung Health” application to measure steps: A study with two different samsung smartphones     

Vicente J. Beltrán-Carrillo  Alejandro Jiménez-Loaisa  Miriam Alarcón-López  Jose L. L. Elvira 《Journal of sports sciences》2019,37(7):788-794

The purpose of this study was to examine the validity of a highly popular pedometer application (Samsung Health). Sixteen adults (28.8 ± 8.9 years of age) wore two Samsung smartphone models, Samsung Galaxy Core Prime (SGCP) and Samsung Galaxy S4 (SGS4), at three body locations (waist, arm, and hand) while walking and running over a 50-m test. All trials were recorded using a video as a gold standard measure of step counts. Results indicated that the validity of Samsung Health varied depending on the smartphone model, its body location, and the type of gait (walking and running). Samsung Health showed acceptable validity when the SGCP was located on the hand (Bias = ?8.3%; RMSE = 5.6), and especially on the arm (Bias = ?7.2%; RMSE = 4.9) while running, and when the SGS4 was located on the arm (Bias = ?7.5%; RMSE = 5.4), and especially on the waist (Bias = 5.4%; RMSE = 3.7) while walking. Samsung Health only showed good validity when the SGS4 was located on the arm (Bias = 2.9%; RMSE = 3.6), and especially on the hand (Bias = 0.5%; RMSE = 2.5) while running. This application showed unacceptable validity in the remaining options.  相似文献   

Jump height loss as an indicator of fatigue during sprint training     

Pedro Jiménez-Reyes  Fernando Pareja-Blanco  Víctor Cuadrado-Peñafiel  Juan Párraga  Juan José González-Badillo 《Journal of sports sciences》2019,37(9):1029-1037

This study analysed the acute mechanical and metabolic responses to a sprint training session focused on maintaining maximal speed until a given speed loss was reached. Nine male high-level sprinters performed 60 m running sprints up to a 3% in speed loss with 6 min rests between sets. Mechanical responses (countermovement jump (CMJ) height and speed loss) and metabolic responses (blood lactate and ammonia concentrations) were measured pre-exercise and after each set was performed. Jump height loss showed almost perfect relationships with both lactate (r = 0.91) and ammonia (r = 0.91) concentrations. In addition, nearly perfect relationships were observed for each athlete between CMJ height loss and lactate (r = 0.93–0.99) and ammonia (r = 0.94–0.99). Very large correlations were found between speed loss and lactate (r = 0.83), and ammonia (r = 0.86) concentrations. Furthermore, close relationships were observed for each athlete between speed loss and lactate (r = 0.86–0.99), and ammonia (r = 0.88–0.98). These results suggest that the CMJ test may allow more accurate setting of training loads in sprint training sessions, by using an individualised sprint dose based on mechanical and physiological responses rather than a standard fixed number of sprints for all athletes.  相似文献   

Water for the City,Fountains for the People: Monumental Fountains in the Roman East     

Javier Martínez Jiménez 《Al-Masaq: Islam & the Medieval Mediterranean》2016,28(1):107-109

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