Performance differences when using 26- and 29-inch-wheel bikes in Swiss National Team cross-country mountain bikers

The purpose of this study was to analyse the effect of bike type – the 26-inch-wheel bike (26“ bike) and the 29-inch-wheel bike (29“ bike) – on performance in elite mountain bikers. Ten Swiss National Team athletes (seven males, three females) completed six trials with individual start on a simulated cross-country course with 35 min of active recovery between trials (three trials on a 26“ bike and three trials on a 29“ bike, alternate order, randomised start-bike). The course consisted of two separate sections expected to favour either the 29“ bike (section A) or the 26“ bike (section B). For each trial performance, power output, cadence and heart rate were recorded and athletes’ experiences were documented. Mean overall performance (time: 304 ± 27 s vs. 311 ± 29 s; P < 0.01) and performance in sections A (P < 0.001) and B (P < 0.05) were better when using the 29“ bike. No significant differences were observed for power output, cadence or heart rate. Athletes rated the 29“ bike as better for performance in general, passing obstacles and traction. The 29“ bike supports superior performance for elite mountain bikers, even on sections supposed to favour the 26“ bike.     

对奥运战略重点项目投入结构的分析与对策建议

奥运战略重点项目投入结构是否合理,对国家奥运战略目标的实现影响重大,实现这一目标的基础在地方。表文根据投入产出原理,从经济角度对奥运战略重点项目作了分类并提出合理投入顺序。采用典型分析方法,定量剖析了天津市奥运战略重点项目在各训练层次、运动项目中,运动员、教练员及训练费用的投入数量结构状况。发现其投入的基本趋势,并据此提出了对策建议。     

资源配置对高校战略性新兴产业科技产出的影响实证分析——以新能源汽车产业为例

[目的/意义]分析资源配置对高校科技产出的影响,有助于发现高校增强科技创新能力的着力点。[方法/过程]以新能源汽车产业为例,首先对我国在该产业领域的科技论文和专利产出总体情况进行分析;并将分析结果与车辆工程专业全国排名前10的高校的相关科研产出进行对比,根据对比结果,进一步分析这10所高校人力、经费、科技服务等方面的资源配置对其科技创新产出的推动和影响。[结果/结论]科技服务作为一种无形生产力,在推动科技产出、提升产业核心竞争力方面具有不可或缺的作用,尤其是以图书情报机构为主体开展的各种科技支撑服务。因此,在新经济常态下,面向产业创新提供支撑服务是今后高校图书馆服务国家创新战略的重要发展方向。     

Are you a budding academic writer?

Academic writing can seem a daunting prospect although with the right support and information it can be more achievable than you think. In this first set of editorial comments of 2016, editors from all sections of the Health Information and Libraries Journal outline the origins of the individual section of the journal which they oversee and highlight some of the things you might want to consider when thinking of submitting your writing for publication.     

A mathematical model for power output in rowing on an ergometer

A mathematical model relating power output of rower to stroke rate on an ergometer (the Concept II Indoor Rower TM, Model C) is studied. The model is used to analyse the ergometer performance of a particular rower. It is determined that he can be more efficient (i.e. decrease power output while maintaining fixed velocity) by decreasing stroke rate, but at the expense of increasing force during the drive. It is also shown that he can be more efficient by increasing the drag factor (using higher vent setting) without increasing force. Dependence of power output on rowing style (the shape of the force curve) is also examined. It is shown that variation of force during the drive has little effect on efficiency, but efficiency is reduced by asymmetry of the force curve that favours the legs.     

增加农业投入加大农业体制创新力度--论湖州城乡一体化建设

城乡一体化是一项系统工程，既需要外部资源投入的不断增加，同时也依赖于内部体制和机制的持续性创新。湖州市在大力推进城乡一体化建设的进程中，已经获得了有益的探索，取得了实质性的成果。在下一轮经济跨越式发展时期，湖州市应在科学发展观的指导下，不断增加涉农产业的投入和农业内部的体制创新力度。     

浙江省部分高校学生体育锻炼态度、体育投入与生命质量调查分析

为了探讨体育锻炼对生命质量的影响,从2006年3月到6月通过对浙江省6所高校954名大学生体育锻炼态度与体育投入和生命质量的调查,结果表明大学生体育锻炼总体态度处于一般水平,并且在性别上差异非常显著,男生要好于女生;大学生总体的生命质量处于一般水平,其中社会关系领域最佳,环境领域最差;大学生的体育人口比例较低;体育经济投入水平一般,体育情感投入、体育精力投入水平偏低;大学生体育人口在体育锻炼态度和生命质量的得分上普遍高于非体育人口;大学生体育锻炼总体态度与生命质量中的生理领域、心理领域、环境领域和社会关系领域显著相关,大学生的体育时间投入、经济投入、精力投入（行为习惯与行为控制感）与大学生生命质量显著相关,但其中时间投入、精力投入与心理领域相关不显著;情感投入（行为意向）与大学生的生命质量相关不显著.     

中韩两国冬奥会理性大盘点

采用文献资料、数理统计、比较分析等研究方法,在对近5届冬奥会中、韩两国成绩进行对比的基础上,从竞技体育体制、奥运战略、训练体系、后备人才培养、资金投入等多个角度对韩国参加冬奥会的致胜之道进行了探讨与分析,旨在为中国备战2010年温哥华冬奥会和冬季优势运动项目的可持续发展提供参考和借鉴。     

以输出能力为导向的大学英语教学策略研究——以讨论式教学法为例

大力提高学生的语言输出能力是当今时代的需求、社会的需求和学生的需求,也是当前大学英语教学改革的当务之急。讨论式教学法因其能够启发学生独立思考、增进团队合作、推动可理解性输出,培养思辨能力,同时还给学生更多的自由表达的空间,促其养成多角度看待问题的习惯,因此是提高语言表达能力的良策。文章结合教学实例主要探讨讨论式教学法对语言输出能力的作用以及如何有效地组织和实施这一教学策略,以期改变大学生语言输出能力严重滞后这一现状。     

金融支持、政府与企业投入对科技创新的贡献研究

本文基于面板数据,重点分析了科研经费投入结构对国家创新的贡献。结果表明,政府和企业科技投入对科研产出的具有显著的贡献,政府科技投入对科技创新的贡献最大,企业科技投入次之,研发人员全时当量对科技创新的贡献最低,银行科技贷款对科研创新的贡献不显著,其占科技投入的比例也在逐年下降,深层次暴露了科技金融体系中存在的一些问题。