基于Android平台的移动智能点餐系统客户端设计

随着GPRS、CDMA1X、蓝牙、WLAN等无线技术的迅猛发展,以及移动终端设备的逐渐普及,移动生活、移动办公逐渐由概念转为现实,信息数据触手可及。设计并开发了基于Android平台的移动智能点餐系统客户端,旨在为消费者提供全新的用餐体验。     

基于移动云计算的个人学习环境支持系统的构建研究

本文基于移动云计算和Mashup技术构建个人学习环境支持系统,为学习者提供符合个性化的知识与学习资源的信息推送与引导,即时获取和存储在云端的学习资源,实现任何时间、任何地点实时满足学习者的学习需求,为进一步研究基于移动互联网环境下的提升高校教学能力的深入挖掘提供依据。     

Multimedia augmented m-learning: Issues,trends and open challenges

The advancement in mobile technology and the introduction of cloud computing systems enable the use of educational materials on mobile devices for a location- and time-agnostic learning process. These educational materials are delivered in the form of data and compute-intensive multimedia-enabled learning objects. Given these constraints, the desired objective of mobile learning (m-learning) may not be achieved. Accordingly, a number of m-learning systems are being developed by the industry and academia to transform society into a pervasive educational institute. However, no guideline on the technical issues concerning the m-learning environment is available. In this study, we present a taxonomy of such technical issues that can impede the life cycle of multimedia-enabled m-learning applications. The taxonomy is devised based on the issues related to mobile device heterogeneity, network performance, content heterogeneity, content delivery, and user expectation. These issues are discussed, along with their causes and measures, to achieve solutions. Furthermore, we identify several trending areas through which the adaptability and acceptability of multimedia-enabled m-learning platforms can be increased. Finally, we discuss open challenges, such as low complexity encoding, data dependency, measurement and modeling, interoperability, and security as future research directions.     

网络计量学的理论、方法及应用

网络计量学研究的对象包括网络信息直接计量、网上文献信息及相关特征信息计量、网络结构单元的信息计量。网络计量学有其规律和研究工具。它具有内容新颖、广泛和大量运用统计学知识的特点。其研究方法有链接分析法、统计分析法和图论分析法等。网络计量学在网站评价与建设、信息资源开发与管理、网络信息检索,以及数字图书馆资源管理等方面,都有广泛的应用。参考文献12。     

The Anonymity Effect: The Influence of Anonymity on Perceptions of Sources and Information on Health Websites

The study reported here examined the influence of anonymous sources on health websites on the perceptions and attitudes of information seekers. It was hypothesized that, despite the warnings and guidelines established by health organizations, anonymous sources would be perceived to be as credible and influential as sources that were identified. The anonymity effect, drawn from the similarity principle in attribution theory, was forwarded as a theoretical mechanism to explain responses to anonymous sources. The results indicated that anonymous sources were generally perceived by participants to be as credible and influential as identified sources, although the anonymity effect explanation was not supported. The implications of these findings for information seekers and health practitioners are considered.     

高校体育应加强大学生自我保健教育

长期以来,我国高校体育教学以运动技能为主,片面追求运动形艺,丢掉了增强体质,增进健康的根本任务。随着高校体育教学改革的不断深化,人们逐渐认识到,体育的终极目标是促进人们工作效率提高,延长工作年限和健康长寿。传授运动技艺,挖掘人类运动能力的极限,应纳入国家“奥运争光计划”。高校体育教育应归属“全民健身计划”的范畴,必须与健康教育相结合。经深入分析自我保健发展的历史,认为２１世纪是保健延寿的时代,高校体育应加强自我保健教育,并在自我保健教育中实施保健运动。     

移动通信增值服务的运营模式研究

在移动通信话音业务为主的时代,移动通信产业链的结构非常简单,但在增值业务时代,产业链的结构逐渐复杂化.从产业链的理论出发,对移动通信增值服务产业链及各环节进行了详细全面的分析,提出了相应的策略和建议.     

《学生体质健康标准》在北京市培训的调查研究

培训工作是实施《学生体质健康标准》的关键环节,本研究针对北京市各区县教委相关负责人和接受过培训的学校体育教师,从培训的次数、培训内容、培训形式和培训效果等几方面进行调查研究,分析培训工作存在的问题并提出相应的建议。     

开展亿万学生阳光体育运动的认识与思考

推动全国亿万学生阳光体育运动的广泛开展,吸引广大青少年学生走向操场、走进大自然、走到阳光下,积极参加体育锻炼,掀起群众性体育锻炼热潮,有效地促进广大青少年学生积极参加体育锻炼,切实提高学生体质健康水平。     

Carnosine in health and disease

Abstract

Carnosine was originally discovered in skeletal muscle, where it exists in larger amounts than in other tissues. The majority of research into the physiological roles of carnosine have been conducted on skeletal muscle. Given this and the potential for muscle carnosine content to be increased with supplementation, there is now a large body of research examining the ergogenic effects (or otherwise) of carnosine. More recent research, however, points towards a potential for carnosine to exert a wider range of physiological effects in other tissues, including the brain, heart, pancreas, kidney and cancer cells. Taken together, this is suggestive of a potential for carnosine to have therapeutic benefits in health and disease, although this is by no means without complication. Herein, we will provide a review of the current literature relating to the potential therapeutic effects of carnosine in health and disease.