Programming Time as a Function of Movement Constraint     

Andrew M. Gordon  Robert W. Christina 《Research quarterly for exercise and sport》2013,84(1):92-97

Abstract

Although the benefits of exercise are well documented, an international problem of physical inactivity exists. More research, especially theory based, has been recommended. One promising approach for studying exercise behavior is that proposed in the Transtheoretical Model (TTM) of behavior change. This model, however, has received minimal cross-cultural attention and, relative to the current study, measurement instruments have only recently been translated into the Finnish language. The purpose of this study was to assess American and Finnish college students' exercise behaviors on the basis of TTM. Participants were American (n = 169) and Finnish (n = 168) college students who completed language-specific measures of exercise behavior, stage of change, processes of change, decisional balance, self-efficacy, and temptation. The only cultural difference observed was that the American participants rated themselves higher on barrier self-efficacy relative to the Finnish participants. Regardless of nationality or gender, participants classified by their stage of change differed on all the core constructs assessed. These results generally support the utility of TTM for understanding American and Finnish college students' exercise behavior.  相似文献   

Theoretical Analysis of Aggressive Golf Putts     

J. F. Mahoney 《Research quarterly for exercise and sport》2013,84(2):165-171

Abstract

The present study examined the relationship between students' perceptions of the motivational climate and beliefs about the causes of success, preference for challenging tasks, and satisfaction in physical education. Responses of 50 female and 46 male students (M age = 12.08 years; SD = .72) showed that perceptions of a mastery-oriented motivational climate were related to the belief that motivation or effort caused success and satisfaction. In contrast, perceptions of a performance climate were related to the belief that deception caused success and related negatively to the students' preference for challenging tasks. Results of hierarchical regression analyses revealed that perceptions of the motivational climate explained a significant amount of unique variance in the students' responses after controlling for dispositional goal orientations. The results suggest that the teacher can influence the salience of a mastery-oriented climate and, in so doing, optimize a child's motivation in physical education.  相似文献   

Competition and Instructional Set Effects On the Speed and Accuracy of a Throwing Task     

John B. Gross  Diane L. Gill 《Research quarterly for exercise and sport》2013,84(2):125-132

Abstract

Two experiments were conducted to investigate the effects of competition and instructional sets on the speed and accuracy of a dart-throwing task. In both experiments individuals competed against another subject on one day, and performed under noncompetitive conditions on a second day. The five distinct instructional sets varied from extreme emphasis on speed to extreme emphasis on accuracy. Multivariate analyses of variance revealed main effects for instructional sets on speed and accuracy in both experiments. Strong tradeoffs occurred with speed slowing and accuracy improving as the instructional emphasis changed from speed to accuracy. A competition by instructional sets interaction in Experiment 2 indicated that competition facilitated speed when speed was important, but when instructions emphasized accuracy, speed was slower in competition than in noncompetition. Accuracy was not affected by competition.  相似文献   

有关口语报告法效度的几个争议问题   总被引：1，自引：0，他引：1  

张裕鼎 《宁波大学学报(教育科学版)》2007,29(6):25-28

尽管口语报告法在当前心理学、教育学以及认知科学的研究中被广泛使用,但关于其效度的争议依然存在。这些争议主要包括:第一,口语报告的准确性,即口语报告能否准确地反映我们的思维内容?第二,口语报告的完整性,即搜集到的口语报告能否为我们了解被试的认知过程提供足够的信息?第三,口语报告的反应性,即口语报告是否会影响思维的正常进程?文章对这些问题进行了较为深入的分析和思考,并指出了对口语报告法进行研究的几个新趋势。  相似文献   

浅析说明文中的美育因素     

李桂芝 《桂林师范高等专科学校学报》2002,16(1):88-90

说明文中蕴含有真知美、形式与内容高度统一的和谐美、语言上的准确美、简明美、生动美 ,教师应认识并利用这些美育因素 ,搞好说明文教学。  相似文献   

任务教学法在大学英语口语教学中的应用   总被引：3，自引：0，他引：3  

王银娜 《湖州师范学院学报》2004,26(4):29-31

如何提高学生的口语水平始终是英语教学中的难点和重点。现在大学的口语教学虽然基本上采用交际法教学，但由于学生过分依赖交际策略，而不是通过句法等语言结构来加工信息，语言的流利程度虽有所提高，但准确性和复杂性未能得到长足的进步。而任务教学法强调在任务的设计中对句式结构和交际意义的并重，在任务的实施中调控学习者的注意力资源，从而实现语言的准确性、复杂性和流利性这三大教学目标，实现语言能力的和谐发展与提高。因此，任务教学法可以解决现在英语口语教学中存在的一些问题。  相似文献   

图像分割算法在零件图像测量中的应用研究     

李庆利  白荫玖  周研  李贺杰 《唐山学院学报》2004,17(2):86-89

通过分析图像测量系统的组成,说明了图像分割算法在零件图像测量中的重要地位,综合阐述了目前常用的图像分割算法的特点。针对零件图像测量的实际应用情况,提出了一种新的图像分割算法,实现了对目标边缘的准确检测。在此基础上设计了边缘检测的亚像素细分算法,对目标边缘进行亚像素精确定位,并用实例说明了本算法的可行性。  相似文献   

甲醛法测定铵盐中总氮含量的有关问题讨论   总被引：1，自引：0，他引：1  

宋萍 《宜春学院学报》2003,25(2):39-39,68

对用甲醛法测定铵盐中总氮含量的测定原理、含量计算、以及实验注意条件等进行讨论，确保实验成功，提高样品测定结果的准确度．  相似文献   

椭圆齿轮流量计误差校正     

吕玉莲  刘美 《茂名学院学报》1997,(1)

该文分析了流体的粘度对椭圆流量计测量精度的影响,并简述其误差校正方法,该方法对流量测量仪表精度校正具有普遍意义。  相似文献   

基于FPGA的磁定位技术研究与实现     

成龙  郑建立 《教育技术导刊》2019,18(7):145-149

在磁定位技术应用过程中,为解决数据处理过程复杂、计算量大导致实时性无法满足问题,利用FPGA的并行结构,设计实现了一种基于FPGA平台的磁定位方案。实验结果表明,磁矩为0.1255[A?m2]的永磁体在距离磁传感器高度在20cm以内时,定位精度能达到毫米级,定位速度比通用计算机提升了一倍以上,可以满足绝大多数实时性要求,更有利于永磁体定位技术产业化,应用前景广阔。  相似文献