Validation of the Microsoft Kinect® camera system for measurement of lower extremity jump landing and squatting kinematics

Cost effective, quantifiable assessment of lower extremity movement represents potential improvement over standard tools for evaluation of injury risk. Ten healthy participants completed three trials of a drop jump, overhead squat, and single leg squat task. Peak hip and knee kinematics were assessed using an 8 camera BTS Smart 7000DX motion analysis system and the Microsoft Kinect® camera system. The agreement and consistency between both uncorrected and correct Kinect kinematic variables and the BTS camera system were assessed using interclass correlations coefficients. Peak sagittal plane kinematics measured using the Microsoft Kinect® camera system explained a significant amount of variance [Range_hip = 43.5–62.8%; Range_knee = 67.5–89.6%] in peak kinematics measured using the BTS camera system. Across tasks, peak knee flexion angle and peak hip flexion were found to be consistent and in agreement when the Microsoft Kinect® camera system was directly compared to the BTS camera system but these values were improved following application of a corrective factor. The Microsoft Kinect® may not be an appropriate surrogate for traditional motion analysis technology, but it may have potential applications as a real-time feedback tool in pathological or high injury risk populations.     

乙烯式卤代烃亲核取代历程讨论

乙烯式卤代烃难发生亲核取代反应,反应历程研究受到限制.在双键碳中引入超离去基,反应顺利进行,且立体构型发生反转,证明该反应为SN2历程.     

Lifestyles of the Rich and Famous: Celebrity Media Diet and the Cultivation of Emerging Adults’ Materialism

The present study used cultivation theory to explore the relationships between celebrity media diet and materialism for a sample of 224 emerging adults. Results indicated main effects between both celebrity magazine consumption and celebrity TV news consumption on materialism. Total celebrity media diet was also significantly related to materialism. Findings suggest that a media diet high in celebrity culture and lifestyle has significant impact on emerging adults’ preoccupation with consumerism, particularly for women. This research contributes to a growing body of literature on the effects of a celebrity-saturated media environment and the cultivation of materialistic attitudes.     

Critical Thinking, Learning and Confucius: A Positive Assessment

In this paper I argue that Confucius' view of learning in the Analects entails critical thinking. Although he neither specified the logical rules of good reasoning nor theorised about the structure of argument, Confucius advocated and emphasised the importance of critical thinking. For Confucius reflective thinking of two sorts is essential to learning: (1) reflection on the materials of knowledge, in order to synthesise and systemise the raw materials into a whole, and to integrate them into oneself as wisdom; (2) reflection on oneself, (a) in order to ensure that such synthesis, systemisation, and integration proceed in an open-minded, fair and autonomous way, and (b) in order to integrate knowledge with the self, that is, to internalise it until it becomes oneself.     

浅谈高职高专学校开设“健康与保健”课的重要意义

笔者对高职高专150名参加健康与保健知识学习的学生进行了调查和访问,总结出健康与保健课开设的意义在于:提高了学生身体素质、增强了学生保健意识,对促进大学生的身心健康有重要意义。     

C语言中的自增/自减运算符

本文根据笔者多年的C语言编程经验,详细归纳了++/--运算符在解题过程中应注意的多个方面的事项,是对教材的一个非常有益的补充,可用于C语言教学的参考,也有助于初学者的自学。     

浅谈我院图书馆阅览室的管理创新

创新是一个民族的灵魂,是一个民族发展的不竭动力。我院图书馆阅览室在管理人员相对少,学生读者多的情况下,图书馆阅览室的管理工作人员不断创新,开拓进取,使工作卓有成效,适应了学院招生办学发展的需要。谨供此文,请同仁商榷。     

人本主义学习理论与教学方式改革之试想

教育界、心理学界、社会方方面面越来越多的人开始关注学生个体情感和人格的健康发展。以及学生在学习过程中对知识的主动构建问题。在人本主义理论的基础上，对中小学教学方式做一些改革尝试。能收到高水平教学的效果。     

高原训练基地气候条件对运动训练的影响

近年来,高原训练越来越受到国内外教练员和体育专业人士的重视,人们相信高原训练能给运动员带来一定的好处。高原训练是一个复杂的问题,它涉及运动员训练水平、机能水平、训练手段、训练环境、地理位置、自然条件及其各个因素之间的内在联系,不能一味从海拔高度判断高原训练条件的优劣,其气候条件及地理位置对运动训练的影响也是相当重要的。本文通过对目前国内外高原训练基地的分布及其相应的自然条件的分析研究,揭示较理想的高原训练应在低纬度高海拔地区和国家进行,这样更有利于提高训练效果。