Wearable inertial sensors in swimming motion analysis: a systematic review

The use of contemporary technology is widely recognised as a key tool for enhancing competitive performance in swimming. Video analysis is traditionally used by coaches to acquire reliable biomechanical data about swimming performance; however, this approach requires a huge computational effort, thus introducing a delay in providing quantitative information. Inertial and magnetic sensors, including accelerometers, gyroscopes and magnetometers, have been recently introduced to assess the biomechanics of swimming performance. Research in this field has attracted a great deal of interest in the last decade due to the gradual improvement of the performance of sensors and the decreasing cost of miniaturised wearable devices. With the aim of describing the state of the art of current developments in this area, a systematic review of the existing methods was performed using the following databases: PubMed, ISI Web of Knowledge, IEEE Xplore, Google Scholar, Scopus and Science Direct. Twenty-seven articles published in indexed journals and conference proceedings, focusing on the biomechanical analysis of swimming by means of inertial sensors were reviewed. The articles were categorised according to sensor’s specification, anatomical sites where the sensors were attached, experimental design and applications for the analysis of swimming performance. Results indicate that inertial sensors are reliable tools for swimming biomechanical analyses.     

“微时代”的大学英语移动教学研究

在简要介绍"微时代"的大学英语移动教学概念和列举其区别性特征的基础上,主要分析了基于微博、微信等"微时代产物"而实现的移动教学在大学英语教学中的应用,旨在帮助大学英语教师提高教学水平,进一步地丰富大学英语教学的研究视角,同时也有利于帮助大学生有效地进行自主化学习。     

文化语境与社会因素对英汉翻译活动的影响作用浅析--以汉语习语英译为例

语言蕴含着人类的思想和文化,所以语际间的翻译被视作跨文化交流。汉语习语是汉民族文化的结晶,由于中西方文化在历史、宗教、自然环境等方面存在诸多差异,翻译时不应忽视文化语境的作用。此外,翻译作为一种社会活动必然会受到诸如社会发展状况、目标语读者等社会因素的影响。因此,译者翻译时应充分考虑文化、社会、读者等因素,灵活采取翻译策略,着重将汉语习语的文化内涵译出,加深西方读者对习语的理解,有效促进文化交流。     

A Strategy for the Management,Preservation, and Reutilization of Geographical Information Based on the Lifecycle of Geospatial Data: An Assessment and a Proposal Based on Experiences from Spain and Europe

In recent years, there has been a growing recognition of the fact that the proper management of information has to include concern for its preservation and future re-use. This ambition is particularly significant for geospatial data. The primary aim of this article is to define the European and Spanish frameworks for the preservation and reutilization of geographical information, with the ultimate goal of proposing an articulated, lifecycle-based data management model. With this, the intent is to shed some light on a complex, difficult and ever-evolving subject.

The article is divided into two main parts. The first part begins with a conceptual justification for geospatial data management and continues by synthesizing the current normative and technological framework for the preservation and reutilization of geographical information. Within this context, the implementation of Spatial Data Infrastructures (SDI) in Spain is evaluated. The second part begins with a case study from Spain that aims to identify different agents and flows that influence the lifecycle of geographical data, as well as the strengths and weaknesses found in each stage of the process under examination. Finally, the foregoing ideas are used in order to propose a SDI-related system for the management of geographical information.     

初中生学业延迟满足与成就目标定向的关系研究

学业延迟满足是指学生在学习情境中甘愿为更有价值的长远结果而放弃即时满足的抉择倾向,以及在等待过程中展示出的自我控制和调节能力。通过调查分析,本研究探讨了初中生学业延迟满足与成就目标定向的关系。主要研究结果如下：不同学业延迟满足能力水平的初中生的成就目标存在显著差异;掌握接近目标和掌握回避目标对学业延迟满足有促进作用,而成绩回避目标对学业延迟满足有负向影响,其中掌握接近目标对学业延迟满足的正向预测作用最大。     

现代生化技术综合性设计性实验教学的探索与实践

综合性设计性实验是高校深化实验教学改革,提高教育质量,培养应用型人才的重要措施.其目的是提高和培养学生综合分析问题、解决问题的能力及激发学生学习的主动性和创造性.针对目前综合性设计性实验存在的一些问题,在《现代生化技术》的综合性设计性实验中,对实验内容的设计、实验实施过程及实验考核等方面进行了研究与探索,取得一定成效.对其它相关课程的实验教学具有一定借鉴意义.     

基于Web理论体系的网络教育教师培训

现代Web网络技术的飞速发展为网络教育提供了新的机遇和挑战。网络教育迅速大面积普及发展的同时对合格的网络教育教师(以下简称:网络教师)的需求也进一步提高。高素质的专业网络教师是实施"现代远程教育工程"的质量保证。文章通过比较和分析国内外对网络教师的培训情况,提出了网络教育理论体系中培训专业网络教师所应借鉴的理论、系统和实践,旨在探索我国网络教学设计的理想框架,提高网络教师的能力,为开展中国特色网络教师培训提供一些建设性意见。     

浅析小学品德与社会教科书内容的二次开发

品德与社会是新课改后新兴的学科,其教科书的发展还处于摸索阶段,所以,品德与社会教科书内容的二次开发尤为重要,同时,教科书内容的二次开发也是教师科研能力的重要表现之一.在对教科书内容进行二次开发时,我们应秉承品德与社会课程标准的要求,科学合理地进行增减或整合,还应拉近课程专家与一线教师的联系,缓解成品的教科书内容与实际教学情景的矛盾.     

Child and Adolescent Predictors of Personality in Early Adulthood

This study investigated development of the Big Five personality traits from early childhood into adulthood. An initial group of 137 Swedish children were assessed eight times between ages 2 and 29 years. Initial decreases in extraversion leveled off in early adulthood; agreeableness and conscientiousness increased from ages 2 to 29; neuroticism initially increased, leveled off in later childhood and adolescence, and decreased throughout early adulthood; while openness to experience showed an initial increase, then decreased and leveled off in early adulthood. Individual developmental trajectories varied significantly, particularly in relation to gender. Personality traits became increasingly stable, and the fact that childhood scores predicted scores in adulthood indicated that personalities are fairly stable across this portion of the life span.