论数字图书馆的多元化资源建设

数字图书馆是传统图书馆的逻辑延续,是一个能涵盖不同类型资源包括数字化与非数 字化资源,并能将多元化的资源融为～体但又能体现各自不同特点的文献信息服务体系。参考 文献5。     

Photonic orbital angular momentum with controllable orientation

Vortices are whirling disturbances, commonly found in nature, ranging from tremendously small scales in Bose-Einstein condensations to cosmologically colossal scales in spiral galaxies. An optical vortex, generally associated with a spiral phase, can carry orbital angular momentum (OAM). The optical OAM can either be in the longitudinal direction if the spiral phase twists in the spatial domain or in the transverse direction if the phase rotates in the spatiotemporal domain. In this article, we demonstrate the intersection of spatiotemporal vortices and spatial vortices in a wave packet. As a result of this intersection, the wave packet hosts a tilted OAM that provides an additional degree of freedom to the applications that harness the OAM of photons.     

全球化背景下的大学追问

在全球化趋势愈演愈烈之际,高等教育作为全球化的重要组成部分深受这一趋势影响,呈现出诸多新的变化和特点。这些变化又将带来怎样的后果？该如何应对？本文试对这些问题予以初步的探究。     

福州市连续运行参考站网数据处理技术研究

福州市连续运行参考站(CORS)的一项重要功能就是快速、精确定位,定位的结果可以为各种用户所使用。根据福州市地方平面坐标系的独立性特点,文章通过坐标联测,研究一种与历史数据吻合又与国家坐标系统相匹配的坐标转换方式。     

基于信息技术的语料数据驱动模式及其应用研究

现代信息技术与外语教学的结合日益紧密.基于信息技术的语料数据驱动模式凭借其语言输入真实地道、以学生为主体、培养学生探究精神等不可替代的优势为外语教学,尤其是词汇教学提供了良好平台和有力保障.以实例剖析了该模式在词汇深度知识教学中的具体应用,提出教师应首先改变观念,具备一定的信息意识和信息能力,以确保该模式的顺利实施.     

大学行政权扩张及其规制的政治学思考

基于特定的高等教育哲学与教育管理体制,我国的大学在相当程度上可视为一个特殊的"政治系统",因而可以用政治的观点来分析其内部的权力构造和利益博弈。用政治学的相关理论来分析,大学中行政权的扩张有其相应的利益驱动,是行政权的扩张本性、强势地位和外部制度环境等内因与外因综合作用的结果。鉴此,对大学中行政权的规制,有必要通过建构责任平衡、分权制衡、权力制约、民主监督和法治约束等多重权力制约机制来实现。     

空手道组手比赛中迎击技战术运用状况的调查研究——2012年全国大学生空手道锦标赛男子组手A组比赛

文章运用文献资料法、录像观察法、数理统计法、专家访谈和逻辑分析法等研究方法,对2012年全国大学生空手道锦标赛男子组手A组比赛中迎击技战术的运用现状进行调查研究,分析迎击技战术在比赛中的次数、效果以及各种迎击得分的相关因素。研究结果表明;迎击技战术在比赛中运用较多,其中1分的迎击技战术（中段击、上段击）运用最为频繁,2分和3分的迎击技战术使用较少且成功率也较低,在三种迎击技战术中引诱式迎击成功率最高,其次是压迫式迎击和直接迎击。     

The defence technique in Tai Chi Push Hands: A case study

Abstract

Developed from traditional Chinese martial arts, Tai Chi exercise includes different forms and interactive Push Hands but biomechanical analyses have focused on the former only. To analyse the techniques of Push Hands, an experienced master was asked to defend pushing by four opponents. Movements were videotaped and digitized using a motion analysis system. Surface electrodes were used to record the electromyographic activity of ten muscle groups. Two force plates were used to measure the ground reaction force on each foot. Inexperienced individuals performed the same procedure to serve as the control group. The results indicate that the master adopted a postural adjustment to maintain balance. A clear shift of body weight from the front to the rear foot and mediolateral displacement of the centre of gravity was observed. Low electromyographic activity was observed in the upper body muscle groups, while high electromyographic activity was observed in the right rectus femoris and very high activity in the left rectus femoris during the defence. All inexperienced participants lost their balance in resisting pushing. It is concluded that the Tai Chi defensive technique includes a subtle postural adjustment that slightly changes the pushing force direction, and allows the rear leg to resist the incoming force.     

A Cross-Cultural Perspective of Parental Influence on Female Adolescents' Achievement Beliefs and Behaviors in Sport and School Domains

Little is known about parental socialization processes for youth participants from different cultural backgrounds. The purpose of this study was to examine parental influence on self-perceptions, task values, and achievement behaviors among female adolescents from two cultures using Eccles' expectancy-value theory (Eccles et al., 1983) . Twelve Anglo Canadian and nine East Indian female adolescents were interviewed about perceptions of parental influence on expectancy-value constructs for sport and academic domains. Inductive and deductive content analyses were performed to identify lower and higher order themes from interview responses. Similarities and differences in perceived parental influence emerged for girls of both cultural groups and in both domains. Our findings support links among expectancy-value constructs and highlight cultural variations in parental socialization of achievement cognitions and behaviors in multiple domains.