科研模式变革中的数据管理服务:实现开放获取、开放数据、开放科学的途径

随着信息技术的发展与普及,全球学术交流模式总体朝着开放获取的趋势发展,信息时代的科学活动需要更多的数据开放和共享。开放数据是公众参与科学、推动社会进步的必要条件。无论是对于图书馆工作还是对于信息服务、知识服务来说,科研模式的变革都是一种新的挑战。与此同时,在此背景下,也产生了一种新的机遇,即与科研数据管理相关的一系列新内容,包括:明确科研数据管理各利益方;明确数据管理服务的主要内容;塑造科研数据开放共享文化,开展各个利益相关者之间的数据对话;进行科学数据开放共享各个环节的政策研究;明确数据馆员发挥的作用和职业价值。表6。参考文献70。     

Reliably Assessing Growth with Longitudinal Diagnostic Classification Models

Recent advances have enabled diagnostic classification models (DCMs) to accommodate longitudinal data. These longitudinal DCMs were developed to study how examinees change, or transition, between different attribute mastery statuses over time. This study examines using longitudinal DCMs as an approach to assessing growth and serves three purposes: (1) to define and evaluate two reliability measures to be used in the application of longitudinal DCMs; (2) through simulation, demonstrate that longitudinal DCM growth estimates have increased reliability compared to longitudinal item response theory models; and (3) through an empirical analysis, illustrate the practical and interpretive benefits of longitudinal DCMs. A discussion describes how longitudinal DCMs can be used as practical and reliable psychometric models when categorical and criterion‐referenced interpretations of growth are desired.     

When digitalized customers meet digitalized services: A digitalized social cognitive perspective of omnichannel service usage

With the prevalence of digital technologies, various services have grown digitalized. Specific to the marketing section, multichannel has been gradually replaced by omnichannel, which aims to integrate all the physical and digital channels tightly. Although omnichannel has received considerable attention, there is still a dearth of research that theorizes the multi-faceted impacts of digitalization on omnichannel. This study thus extends social cognitive theory (SCT) to the digitalized context and contextualizes the digitalized customer and digitalized environment as mobile identity and channel integration quality, respectively. Moreover, based on the self-regulation process of human agency, we incorporate omnichannel self-efficacy, satisfaction, and habit as the agentic factors to interpret a customer’s conscious (ability and expectancy beliefs) and unconscious (automatic behavioral tendency) decision-making under the omnichannel setting. Through an online survey of 401 omnichannel customers, we find support for all the proposed hypotheses. Implications and limitations of this study are further discussed.     

The kinematic differences between accurate and inaccurate squash forehand drives for athletes of different skill levels

ABSTRACT

To maintain the accuracy of squash shots under varying conditions, such as the oncoming ball’s velocity and trajectory, players must adjust their technique. Although differences in technique between skilled and less-skilled players have been studied, it is not yet understood how players vary their technique in a functional manner to maintain accuracy under varying conditions. This study compared 3-dimensional joint and racket kinematics and their variability between accurate and inaccurate squash forehand drives of 9 highly skilled and 9 less-skilled male athletes. During inaccurate shots, less-skilled players hit the ball with a more open racket, demonstrating a difference in this task-relevant parameter. No joint kinematic differences were found for accuracy for either group. Coordinated joint rotations at the elbow and wrist both displayed a “zeroing-in” effect, whereby movement variability was reduced from the initiation of propulsive joint rotation to a higher consistency at ball-impact; potentially highlighting the “functionality” of the variability prior to the impact that enabled consistent task-relevant parameters (racket orientation and velocity) under varying conditions. Further, highly skilled players demonstrated greater consistency of task-relevant parameters at impact than less-skilled players. These findings highlight the superior ability of highly skilled players to adjust their technique to achieve consistent task-relevant parameters and a successful shot.     

大学武术教学艺术探讨

文章从分析大学生厌学入手,根据实际情况详细地介绍培养大学生武术学习兴趣、培养学生欣赏水平和选择多样性教学艺术手段的方法。     

跆拳道教学应"道艺"并重

跆拳道是一项极具东方特色的传统武技,在整个修炼过程中包含了严格的礼仪,充分体现了“道的含义”坚持“以礼始,以礼终,然而在跆拳道教学过程中,许多教师只是简单地起到传授技术的作用,只教会了学生跆拳道技术,而没有引导学生进行“悟道”,背离了跆拳道的发展思路。跆拳道作为一种体育项目,它吸引人的并不是简单的技术表层,而是蕴含在其中的文化价值。跆拳道运动是在修炼技艺的同时铸造人的道德品质,在课堂教学中应该寓道德品质的修炼于技术、素质的练习之中,做到“道艺”并重。     

新课标指导下的中学体育教学改革初探

文章以新课程标准为指导思想,针对课改实施中出现的新问题,提出了尝试性的体育教学改革,经过一年的实验,研究其对中学生的学习兴趣、学习态度、学习技能获得三个方面的影响,旨在探讨对中学生体育学习有益的教学内容模式、组织形式和教学方法。     

中国乒乓球男队主要对手的技战术分析

运用文献法、录像观察法、三段技术统计法,对当前中国乒乓球男队的主要竞争对手柳承敏、萨姆索诺夫、波尔进行了微观的技术剖析,并提出了相应的应对策略。研究还表明,如果继续沿用以前的三段技术评估标准,应做如下补充：一段不及格,两段优秀和一段不及格,一段及格,一段优秀,均可获胜;如果不沿用以前的评估标准,应做如下修敌：把相持段的得分率和使用率的数值下调,下调的幅度应做进一步的、大样本的研究。     

冬季两项运动射击技术训练

冬季两项是我国确定的冬季奥运会的重点项目之一,通过对冬季两项特点的分析、认识,以及对项目规律的研究,进一步明确了项目要求,并提出细化技术动作程序、力争首发射击命中率、控制好射击节奏和充分利用好竞赛规则等特殊要求,以及调整射击前的心率、选择适合自己的呼吸习惯、注意合理的运枪技术、突出做好瞄扣配合训练、注重技术动作的程序化的训练和把握关键、立足当前的稳定心态等技巧,以达到冬季两项运动滑雪与射击技术的最佳结合。     

散打运动引入传统武术功力训练的可行性研究

运用文献资料、专家访谈和逻辑推理等研究方法,以丰富我国现代散打技术训练方法理论体系为研究视点,针对我国散打运动员在多次中外散打对抗赛中所表现出的攻击力薄弱、抗击打能力较差等问题,结合传统武术功力训练的特点和现代散打运动技术训练的实际,提出了将传统武术功力训练的方法有针对性地移植到对散打运动员的拳法、腿法、摔法及步法的训练之中,来最大限度提高散打运动员的攻击力和抗击打能力,有效提高其散打竞技水平。