A new footwear technology to promote non-heelstrike landing and enhance running performance: Fact or fad?

This study sought to compare the kinetics and kinematics data in a group of habitual shod runners when running in traditional running shoes and newly designed minimalist shoes with lug platform. This novel footwear design claims to simulate barefoot running and reduce energy loss during impact. We compared footstrike angle (FSA), vertical average (VALR) and instantaneous (VILR) loading rates, energy loss and initial vertical stiffness between two shoe conditions. Runners demonstrated a decreased FSA while running in minimalist shoes with lug platform than traditional shoes (P = 0.003; Cohen’s d = 0.918). However, we did not observe a landing pattern transition. VALR and VILR between two footwear conditions showed no significant difference (P = 0.191–0.258; Cohen’s d = 0.304–0.460). Initial vertical stiffness (P = 0.032; Cohen’s d = 0.671) and energy loss (P = 0.044; Cohen’s d = 0.578) were greater when running in minimalist shoes with lug platform. The results show that minimalist shoes with lug platform reduce the FSA but may not lead to a landing pattern switch or lower vertical loading rates. Interestingly, the new shoe design leads to a greater energy loss than traditional running shoes, which could be explained by a higher initial vertical stiffness.     

LaFeCoSi系列合金室温磁热效应的研究

选择LaFeSi作为基础,在其中添加过渡族元素Co,配制成LaFe11.7-xCoxSi1.3 Bo.25(X =0.6,0.65)系列合金,采用高频磁悬浮感应加热炉进行熔炼,进行热处理,并对样品在1.5T磁场下进行直接测量.结果表明,Co元素的适量添加,对提高居里温度有意义,也可以适当调整材料的绝热温变,对于保持材料的磁热性能有更好的作用.     

"诗可以怨"反诘

"诗可以怨"及其相关论断一直是中国传统诗论的重要命题,它在当代的彰显得益于钱钟书先生的一次演讲,随后重申者和推崇者辈出.然而通过对这个命题的诘问,我们发现:这一命题虽然占有历史的合理性,在逻辑和学理上却是存在一定的漏洞."诗可以怨"一方面并不能恰当地适用于诗歌以外的其他文学体裁领域,另一方面,单纯在诗论领域它也存在一定的偏颇.其结果是,这一看似无误的理论命题却极有可能成为文学充分发展的犄角,限制了文学的另一种发展.     

我国中文图书在版编目存在问题探析

简要论述了中文图书在版编目在分类标引、著录等方面存在的问题,并提出了提高图书在版编目质量应采取的措施.     

高校图书馆档案分类体系及管理模式探究

从调研高校图书馆档案工作存在的实际问题出发,分析了原因,进一步明确了档案工作的作用、图书馆档案的归档内容,并根据自己的工作实践,制订了档案分类体系方案,在此基础上,提出了三级档案管理模式,优化了高校图书馆档案管理工作.     

瑞典的社会福利制度及其特点

国际社会的现代福利制度的最重要特征就是社会福利的普遍享有原则。近百年来,瑞典比较彻底地贯彻了这一原则,使所有公民都可以享受到社会提供的基本福利,福利面前人人平等。瑞典福利制度有四大特点:全民性、高福利、均平性、政府负担。     

Beyond the white norm: the use of qualitative methods in the study of black youths’ schooling in England

There is at present in England great confusion concerning the schooling of black youths. Much conventional “race‐relations” research is underpinned by models of social pathology that perceives the youths as a “problem.” While carrying out a study of black students, of Afro‐Caribbean and Asian parentage, qualitative research pointed to the need to re‐conceptualise their experience of schooling within a framework that moves beyond liberal assumptions of a de‐racialised, de‐gendered and de‐politicised school system. Placing students at the centre of the research enables us to see how school for black youths is part of a wider alienating response to them that results in their experience of a “different reality” from the white population. In response to this, the students have creatively developed a number of survival strategies. This article explores the implications of the relative autonomy of methodology from wider theoretical and substantive concerns. In this largely autobiographical account the dialectical nature of ethnography is illustrated, with the theoretical#shconceptual analysis grounded in the data gathering process.     

对我国高校高水平运动队的现状分析及其发展对策的研究

本文对36所试办高水平运动队的高校进行了全面调查。结果表明:目前我国高校高水平运动队普遍存在着指导思想混乱;生源经费短缺;运动员年龄偏大;场馆破损陈旧;项目布局不合理;重训练轻文化;教练素质较差等问题。针对上述现状及成因,作者提出了若干发展对策和改革建议,旨在使高校办高水平运动队工作出现新的局面。     

梦幻悲凉的诗意表达——《野草》的意境美

鲁迅散文诗《野草》以其高超的艺术手法为构筑了诗画境界,充满诗的意境美,主要体现:一、含蓄沉郁的文本美;二、诗情画意的朦胧美;三、隽永超越的梦幻美;四、孑然孤行的悲凉美。     

城市建设文件、档案信息集成管理与集成服务研究

从研究背景,研究目标、研究内容和拟解决的关键问题,研究方法、技术路线和创新之处,研究计划,研究意义及预期成果5个方面,介绍国家自然科学基金项目“城市建设文件、档案信息集成管理与集成服务研究”的思路和体系。