社会经济的发展与竞技体育的相关分析

为了在量上更加明确经济与体育竞赛成绩的关系，分别以我国六大区域（华北、东北、华东、中南、西南、西北）为具体研究对象，采用文献资料调研、数理统计法、逻辑分析法，运用定量与定性相结合的分析手段，以2001年各区域国内生产总值（含第一、二、三产业）、农业人口、非农业人口、农民纯收入、科技投入、文体投入、教育投入、科技人员、教育程度（大学本科人数）、文体人员与九运会成绩为具体研究指标，通过研究和揭示经济以直接、间接等不同形式作用于体育事业，从而影响竞技体育与体育竞赛成绩，明确经济与体育竞赛成绩在量上的相互关系。     

高等师范院校生物类专业的分析化学教学之我见

分析化学课程教学在高等师范院校生物类专业(生物科学、生物技术、生物制药等)本科生的培养过程中具有重要的意义。为了提高本科生的培养质量,使其满足毕业后工作岗位的需求,该文通过对高等师范院校生物类专业的教学环节(包括理论课教学和实验课教学)进行探究和总结,并结合该课程在江苏师范大学的教学资源和条件,归纳了提高高等师范院校生物类专业本科生分析化学教学水平的思路和方法。     

Reporting of activated partial thromboplastin time (aPTT): Could we achieve better comparability of the results?

IntroductionActivated partial thromboplastin time (aPTT) is determined and reported as clotting time in seconds aPTT(s), but it is presumed that reporting results as patient-to-normal clotting time ratio, aPTT(r), could minimize within-laboratory variability. The aim of study was to investigate differences in reporting aPTT results that can affect comparability of the results among Croatian laboratories and suggest further steps for its harmonization.Materials and methodsThe questionnaire on aPTT reporting practice was distributed to 83 laboratories through Survey Monkey application in March 2019 as the part of the first regular round of Croatian Centre for Quality Assessment in Laboratory Medicine proficiency testing.ResultsThe survey response rate was 0.49. Majority of laboratories report aPTT results as both, seconds and ratio. Participants reported use of 23 different aPTT(s) reference intervals along with 17 different combinations of reagent/coagulometer and 25 aPTT(s) denominators of different origin for aPTT(r) calculation. Despite the same aPTT(s) results, the use of different denominators caused a dispersion of aPTT(r) results that can lead to exceeding external quality assessment performance criteria of 7%, particularly when results were compared for the same reagent group only. By applying aPTT(s) reference interval mean as denominator for calculation of aPTT(r) reference interval better concordance to harmonized one was obtained (17 vs. 27; χ² = 3.972; P = 0.046).ConclusionIn order to improve comparability of the results, laboratories are advised to use mean of aPTT(s) reference interval as denominator for aPTT(r) calculation. Type of coagulometer need to be considered when evaluating aPTT proficiency test results and its currently acceptable limit of performance evaluated accordingly.     

复合营养液对小鼠抗疲劳研究

通过小鼠实验对复合营养液的抗疲劳作用进行了研究.实验结果表明:复合营养液可明显延长小鼠的游泳时间,显著降低小鼠血乳酸及尿素氮的含量,初步证明复合营养液具有抗疲劳作用,对运动机能有促进作用.     

区域竞技体育发展现状与社会人口结构的相关研究

分别以我国六大区域(华北、东北、华东、中南、西南、西北)为研究对象,运用文献资料、数理统计和逻辑分析等方法,对区域竞技体育现状与社会人口结构(职业、城乡、文化、年龄、发展及分布结构)进行相关分析.结果表明:传统型人口产业结构是制约我国竞技体育发展的重要因素,发展型和现代型人口产业结构对竞技体育发展具有积极影响.竞技体育与非农业人口成正向关系,与农业人口成反向关系.竞技体育与高文化程度人群存在显著正相关.年轻型人口社会可为竞技体育发展提供人才储备,成年型人口社会是竞技体育发展的"黄金时期",而老年型人口社会可能制约竞技体育的发展.人口发展结构与竞技体育呈负相关,人口分布结构也可通过一些渠道影响竞技体育.     

试论绘画作品中色彩的语言功能

黑、灰、白是稳定与活跃画面的最基本的要素,面对纷繁的物象,只有通过黑、灰、白的提炼、概括,画面才能既有对抗产生的活跃性,又有和谐产生的稳定性,它可使静止、稳定的画面产生动感。因此,运用艺术概括的手段去认识与研究黑、灰、白的关系,是绘画学习中重要的课题。     

Factors affecting the quality of engineering education in the four largest emerging economies

A huge increase in engineering graduates from the BRIC countries in recent decades potentially threatens the competitiveness of developed countries in producing high value-added products and services, while also holding great promise for substantially increasing the level of global basic and applied innovation. The key question is whether the quality of these new BRIC engineers will be high enough to actualize this potential. The objective of our study is to assess the evolving capacity of BRIC higher education systems to produce qualified engineering graduates. To meet this objective, we compare developments in the quality of undergraduate engineering programs across elite and non-elite higher education tiers within and across each BRIC country. To assess and compare the quality of engineering education across the BRIC countries, we use multiple sources of primary and secondary data gathered from each BRIC country from 2008 to 2011. In combination with this, we utilize a production function approach that focuses on key input-, process- and outcome-based indicators associated with the quality of education programs. Our analysis suggests that in all four countries, a minority of engineering students receives high quality training in elite institutions while the majority of students receive low quality training in non-elite institutions. Our analysis also shows how the BRIC countries vary in their capacity to improve the quality of engineering education.     

我国环境责任保险实施现状及立法改进设想

迄今为止,主要发达国家的环境责任保险制度已进入较为成熟阶段,并成为通过社会化途径解决环境损害赔偿问题的主要方式之一。受经济发展水平、环境保护意识、保险公司的规模与实力等因素的制约,我国尚未建立实质意义上的环境责任保险制度。近年来,国内众多学者分析和阐述了我国环境责任保险的立法模式、承保范围、保险费率等问题,但就我国环境责任保险制度的实施现状来看,改进我国环境责任保险立法、促进环境责任保险事业发展仍有诸多亟待解决的问题。     

Microstructured multi-well plate for three-dimensional packed cell seeding and hepatocyte cell culture

In this article, we present a microstructured multi-well plate for enabling three-dimensional (3D) high density seeding and culture of cells through the use of a standard laboratory centrifuge to promote and maintain 3D tissue-like cellular morphology and cell-specific functionality in vitro without the addition of animal derived or synthetic matrices or coagulants. Each well has microfeatures on the bottom that are comprised of a series of ditches/open microchannels. The dimensions of the microchannels promote and maintain 3D tissue-like cellular morphology and cell-specific functionality in vitro. After cell seeding with a standard pipette, the microstructured multi-well plates were centrifuged to tightly pack cells inside the ditches in order to enhance cell-cell interactions and induce formation of 3D cellular structures during cell culture. Cell-cell interactions were optimized based on cell packing by considering dimensions of the ditches/open microchannels, orientation of the microstructured multi-well plate during centrifugation, cell seeding density, and the centrifugal force and time. With the optimized cell packing conditions, we demonstrated that after 7 days of cell culture, primary human hepatocytes adhered tightly together to form cord-like structures that resembled 3D tissue-like cellular architecture. Importantly, cell membrane polarity was restored without the addition of animal derived or synthetic matrices or coagulants.     

The development of numeracy in England and Slovenia

The Third International Mathematics and Science Study (TIMSS) placed Slovene 9 year olds significantly above the international mean in mathematics and English 9 year olds significantly below. As the project to be described here shows, however, such findings can mask finer differences in numerical abilities and problem-solving which qualitative analysis can reveal. While performance in arithmetic tasks of English 6 year olds was superior to Slovene pre-schoolers of the same age, at 7 years Slovene pupils had caught up and between 8 and 11 years forged ahead. By contrast, Slovene pupils were not quite so successful at problem-solving tasks in comparison with the English sample. Possible improvements, in the first place, might be obtained by a careful synthesis of curricula and instructional strategies but is this too simple a solution? A major goal of this paper will be to provide insight into the limitations of large-scale international studies and research methodologies as well as advocate qualitative approaches which, if not challenging such studies certainly complement and enrich them by setting out to answer another set of research questions. This paper also raises important questions about cultural differences which influence the aims and philosophy of education both directly and indirectly.