中国马拉松赛事发展的空间分布与自相关特征研究

以2014-2019年全国31省份马拉松赛事举办量为研究数据,采用地理空间计量分析模型对我国各地区马拉松赛事发展的空间分布与自相关特征进行分析。结果显示:①31省份马拉松赛事发展的空间自相关关系总体上呈正相关,其分布具有明显的空间集聚性,且空间依赖性较强,但这种依赖程度和空间集聚性已有下降趋势。②我国马拉松赛事存在一定的空间异质性。东、西部马拉松赛事发展的两极差异明显,马拉松赛事发展的 “马太效应”逐渐增强。③新疆和东部沿海地区的马拉松赛事发展存在显著的空间集聚特征,但大部分地区并未与周边邻接地区形成显著的空间集聚关系,且这种情况多年来并未发生太大改变。在此基础上提出区域间合作办赛、向发展较差地区倾斜、以点带面等建议,旨在促进全国马拉松赛事整体发展。     

L型区域特征值问题WILSON元展开及外推的数值实验

文献[1]中对Poisson方程的特征值采用Wilson非协调元进行展开,从误差展开式的形式上推测是下界。利用Wilson元,计算L型区域上的Poisson方程的近似特征值,并对数据进行分析,验证了推测是正确的,然后通过对误差展开式外推,得到了高精度的解。     

文化教育程度、国民收入水平与体育用品制造业发展的实证研究——基于面板数据的分析方法

基于2003-2009年间省级面板数据设定面板协整模型,实证检验我国居民文化教育程度、人均收入水平与体育用品制造业发展的相互关系.结果表明:2003-2009年国民整体文化素质提升较快,人均收入水平增长势头良好,体育用品制造业整体发展状况较好;文化教育程度、国民收入水平与体育用品制造业发展均存在长期协整关系,我国绝大部分地区(区域)居民文化教育程度和人均收入水平都对体育用品制造业的发展产生长期正向的促进作用,全国及各地区国民收入水平对体育用品制造业发展的影响系数均高于文化教育程度,居民文化教育程度、人均收入水平对体育用品制造业发展的影响程度在不同地区(区域)间存在明显的差异性.最后就所得结论展开分析和讨论,并归纳出基本结论.     

Differential electronic detector to monitor apoptosis using dielectrophoresis-induced translation of flowing cells (dielectrophoresis cytometry)

The instrument described here is an all-electronic dielectrophoresis (DEP) cytometer sensitive to changes in polarizability of single cells. The important novel feature of this work is the differential electrode array that allows independent detection and actuation of single cells within a short section ( ～ 300?μm) of the microfluidic channel. DEP actuation modifies the altitude of the cells flowing between two altitude detection sites in proportion to cell polarizability; changes in altitude smaller than 0.25 μm can be detected electronically. Analysis of individual experimental signatures allows us to make a simple connection between the Clausius-Mossotti factor (CMF) and the amount of vertical cell deflection during actuation. This results in an all-electronic, label-free differential detector that monitors changes in physiological properties of the living cells and can be fully automated and miniaturized in order to be used in various online and offline probes and point-of-care medical applications. High sensitivity of the DEP cytometer facilitates observations of delicate changes in cell polarization that occur at the onset of apoptosis. We illustrate the application of this concept on a population of Chinese hamster ovary (CHO) cells that were followed in their rapid transition from a healthy viable to an early apoptotic state. DEP cytometer viability estimates closely match an Annexin V assay (an early apoptosis marker) on the same population of cells.     

中国区域竞技体育发展的外部环境综合测评与分类特征

通过相关文献资料构建我国区域竞技体育发展的外部环境综合评价体系,运用R型聚类、主成分分析及判别分析等多元数理统计方法,对区域竞技体育发展的外部环境进行综合评价与分类。结果显示:区域竞技体育发展的外部环境可归纳为6个维度,全国31个地区竞技体育发展的外部环境可分为5种类型,且第1种类型区域竞技体育发展的外部环境和另外4种类型存在非常明显的差异性。根据各区域竞技体育发展的外部环境特征,提出针对性的建议,以供相关部门决策参考。     

Understanding learning behaviour of Malaysian adult learners: a cross-cultural sensitive framework

The link between learning and the knowledge-economy is so crucial that the Organisation for Economic Co-Operation and Development has reconceptualised the term knowledge-economy to call it “learning economy”. Ultimately, one of the main challenges of learning and development in the 21st century is to evaluate the significant learning attributes of the adult learners. Literature on Students’ Approaches to Learning (SAL), were used to conceptualise the study. However, researchers have reported the weakness of the SAL for cross-cultural studies. This study acknowledges the importance of cultural issues in the study of learning approaches. The adapted version of SPQ, i.e. R-SPQ-2FM (Revised-Study Process Questionnaire-2 Factors Malaysia) which considers both etic (universal) and emic (culturally specific) characteristics was administered on 532 Malay and 326 Chinese Malaysian adult learners. Results show that there are significant cross-cultural insights between Malay and Chinese adult learners, particularly in the Understanding and Memorising Approach, Career/Achieve Motives constructs, the effects of “work experience” and “time spent on study” have on approaches to learning. Findings above would strengthen “evidence-informed” policy making for Malaysian authorities or regional policy makers in the Asia Pacific.     

钱钟书“桐城亦有诗派”续说

从清代桐城籍诗人的实际创作看,不仅文在桐城,诗亦在桐城。桐城派诗人谨守家法,有较为自觉的流派意识,以“正雅祛邪”为己任。姚范诗学观深刻影响了桐城诗派,以姚范为诗派的发端者,有合理一面,又不尽合理。重道不废文,唐宋兼取,刚柔并举,融通的诗学观,使得桐城诗派影响甚大。     

直接法在大学专业日语教学中的应用与实践

教学过程中,结合教学对象,教材,教学目标等因素,充分考虑如何使用恰如其分的教学方法,是上好一堂课的关键,用对了教学法,就能充分调动学生的主观能动性,能够高效率的传达知识点,能够举一反三的进行试练,是每位教师都必须考虑的教学关键点。本文将针对直接法如何运用于日语教学中进行探讨,旨在为大学中的专业日语教学提供参考。     

中国体育产业上市公司与文化产业上市公司生存状态的比较研究

通过文献资料、数理统计及比较分析等方法,对我国17家体育产业上市公司和35家文化产业上市公司的生存状态进行比较研究。结果显示:2011年中国体育产业上市公司的总体发展规模、盈利能力与投资回报能力较文化产业上市公司仍存在较大差距,但在营运能力和偿债能力方面则比文化产业上市公司更具优势。就各财务指标而言,体育产业和文化产业上市公司的资产规模、利润总额、净利润率、存货周转率及流动比率的区间分布特征较为相似,但两类上市公司的总资产周转率与总资产回报率的分布特征却存在较大差异。体育产业上市公司的净资产收益率、净利润率、每股收益和每股净资产均普遍低于文化产业上市公司,而资产负债率则低于文化产业上市公司。整体来看,文化产业上市公司在多数财务指标上的竞争实力明显强于体育产业上市公司,并且文化产业的规模经济发展效益也显著高于体育产业。     

A polystyrene-based microfluidic device with three-dimensional interconnected microporous walls for perfusion cell culture

In this article, we present a simple, rapid prototyped polystyrene-based microfluidic device with three-dimensional (3D) interconnected microporous walls for long term perfusion cell culture. Patterned 3D interconnected microporous structures were created by a chemical treatment together with a protective mask and the native hydrophobic nature of the microporous structures were selectively made hydrophilic using oxygen plasma treatment together with a protective mask. Using this polystyrene-based cell culture microfluidic device, we successfully demonstrated the support of four days perfusion cell culture of hepatocytes (C3A cells).