A Comparison of Thailand and New Zealand Students’ Ideas About Energy Related to Technological and Societal Issues

This study is a cross-cultural comparison between the ideas of 49 Thai Grade 9 students and the 30 New Zealand Grade 9 students (approximately 15 years old), about energy related to technological and societal issues. Students’ ideas were explored using the Questionnaire for exploring Students’ ideas about Energy, Technological, and Societal issues (QSETS). The QSETS questionnaire gave students the opportunity to express their ideas about energy related to societal and technological issues. Both groups of students were presented with the same set of issues, but specific places were related to each student’s own country. The study reveals some interesting student ideas that might be generated from engaging in different contexts. It seemed that the 15-year-old students had difficulty in perceiving the relationship between the study of society and energy. Around 50% of both groups of students did not understand, and did not know enough about, questions which referred to the relationship between society and energy. Thai and New Zealand students held different values in decision-making. Thai students placed value on decisionmaking concerning the development of the country. They strongly believed in scientific application for solving social problems. New Zealand students valued decision-making in relation to environmental issues. They were not quite sure that scientific knowledge could solve problems. They thought that science applications caused damage to the environment. This study has implications for the development of teaching approaches in different countries.     

基于异质性偏好的中国城镇居民消费结构研究

对消费者行为的传统研究是建立在"代表者行为"假设基础上的。它的一个明显特征是消费者偏好是同质的。但这与现实不符。为了能更准确地刻画不同特征的消费者偏好,本研究根据 Jorgenson(1982)的异质性消费加总理论,建立了中国的异质性偏好消费模型,并在此基础上深入研究了不同人口特征的中国城镇居民的消费结构。     

高等院校能效管理能力建设现状实证研究——基于浙江省18所高校的问卷调查分析

以浙江省18所高校为样本，从高等院校开展能效管理的组织保障、制度建设、资金投入和基础条件四个方面展开问卷调查。通过对调查结果的定性与定量分析研究，认为目前高等院校能效管理能力建设尚处于起步阶段．需要在能效管理目标量化、长远规划、基层及学生执行组织、资金投入、基础管理手段上加大建设力度，为高等院校开展全面能效管理提供保障。     

模拟全程马拉松跑过程中能量代谢的变化

目的:了解优秀运动员在全程马拉松跑过程中通气量、摄氧量(V·O2)、潮气量、心率、总能耗、糖消耗量、脂肪消耗量以及乳酸产生量等的变化。方法:以1名肯尼亚优秀马拉松运动员为实验对象,在跑步机上以接近于其80%最大摄氧量(V·O2max)强度的18 km·h^-1速度完成全程马拉松跑,并在全过程中通过运动心肺测试系统采集能量代谢相关指标,并与3天前进行的V·O2max测试获得相关指标的最大值进行对比。结果:1)在马拉松过程中,单位时间内的V·O2、通气量、潮气量相对稳定,平均值分别占递增速度V·O2max测试中最大值的75.4%、67.0%、81.0%;2)在不补充水分时,心率从第40 min开始出现逐渐上升的趋势,结束时心率达到最大心率的92.5%,全程平均心率为最大心率的88.8%;3)全程每公斤体重的每公里能耗基本保持稳定,呼吸商在0.9~1.0之间,能量供应以糖的有氧代谢为主,乳酸产生量极少,糖和脂肪消耗总量为8.4 g·kg^-1和0.5 g·kg^-1;4)从静脉血部分指标的变化来看,红细胞总数及其参数变化幅度较小,白细胞总数、单核细胞数以及粒细胞数的增加幅度分别达到了100.9%、142.7%和186.1%。结论:优秀马拉松运动员在全程马拉松跑过程中,动作经济性能够保持相对稳定,补水不足时心率呈上升趋势,能量供应主要以糖的有氧代谢为主,乳酸产生量极少。运动前后红细胞数变化较小,白细胞等免疫相关细胞的变化较大。     

甘肃省城镇居民收入差距扩大的经济分析

从统计数据看,甘肃省城镇居民的收入存在较大差距,导致甘肃省城镇居民收入差距拉大的原因是多方面的。要缩小甘肃省城镇居民的收入差距,应加快发展入手,扩大就业、整顿分配秩序、合理调节收入分配,辅之以广泛覆盖的社会保障等策略。     

青藏高原生物抗疲劳与提高运动能力潜能的研究

在世界第三极的青藏高原上，经过千百万年的演变进化，孕育出了许多特有的动植物种类。它们为了抵御低温、缺氧、强辐射带来的损伤，体内产生了一系列物质．甚至在基因水平上出现了一系列适应机制。这些对研究运动疲劳有着重要的意义，应用这些动植物对防止运动疲劳．提高运动能力有着巨大的潜能。     

Educational inequality in rural and urban India

This paper presents estimates of educational inequality for the major Indian states. We compute the education Gini index separately for the rural and urban sectors and examine the changes in inequality during past two decades. The estimates show the high extent of educational inequality; though the inequality declined between 1993 and 2009 the Gini index is above 50% in 2009. Using the analysis of Gini (ANOGI), a technique to decompose overall inequality into the inequality within- and between-sectors, we find that a large part of overall educational inequality is accounted for by intra-sector inequality. Further, intra-sector inequality has increased and inter-sector inequality has narrowed during the above period.     

Does the expansion of higher education reduce gender gaps in the labor market? Evidence from a natural experiment

In 2005 Chilean congress approved a bill that established a new funding tool for higher education funding through a "private system" of student loans (named CAE). The system aimed to support higher education inclusion among students with academic merits overcoming the lack of resources for ensuring access. Politicians have referred to this reform in higher education funding as a critical factor for expanding higher education enrollment. By its immediate results, it is a great strategy to cope with inequality and social mobility issues. However, there is little empirical evidence about labor market variables' overall effects, such as gender discrimination. This work attempts to estimate the new instrument's impact on the three standard measures of gender labor discrimination: labor participation, the gender wage gap, and the glass ceiling. The empirical strategy uses a difference-in-difference approach to provide estimates. The results indicate that the CAE policy changed women's labor market participation and contributed to close the gender pay gap in the labor market. However, the glass ceiling increased in the entire labor market, but not in the white-collar job market in specific.     

^31P-MRS在体育中的应用现状

31P-MRS作为一种无创性地研究活体器官组织代谢、生化变化及进行化合物定量分析的方法在医学领域飞速发展,逐渐成为生理病理诊断以及治疗检测的重要手段.综述31P-MRS在体育中应用的研究现状以及存在的不足.     

石油炼制常减压装置节能探析

文章汇总了＂十一五＂期间针对降低常减压装置主要耗能工质而采用的各种节省燃料油、蒸汽和电力的节能技术应用实例,阐述了各项节能技术的机理和实施效果,进一步佐证了节能技术的良好运用对降低常减压装置能耗的助推作用。