Calculated democracy—Explorations in gerrymandering

This paper describes a lesson centered around a metric for measuring partisan gerrymandering: the efficiency gap. We situate the efficiency gap in the current US political climate, describe the activity itself, and then provide recommendations for readers interested in adapting the lesson for their own classrooms.     

大气污染控制工程创新性实验的探索与思考

结合本校＂培养高级应用型人才＂的办学宗旨和环境工程专业的办学理念,从提高学生素质和创新能力出发,就大气污染控制工程课程创新性实验的经验和体会进行了总结。     

高职毕业生就业率缺口探析

高等职业教育是我国高等教育体系的重要组成部分.以就业为导向是高职院校办人民满意教育的关键环节.就业率的统计依然是各省、各高职院校完成就业指标,体现教育成果,构筑和谐社会的有效体现.但对就业率缺口的关注还存在一定的误区和盲区,本文试图通过就业率缺口的探析,找出有效解决未就业毕业生的就业途径,提高就业工作的实效性和针对性,切实提高就业率.     

习语翻译与文化意象

奈达的动态对等理论强调主体对受体的反应,而习语翻译过程应注重文化因素在人的头脑中所映射的文化意象的转换。异质同构和文化间的相互作用和影响,说明文化意象的可转换性,而概念空缺使其存在局限性。在些理论基础上,本文分析习语翻译过程中文化意象处理策略。     

一维声子晶体带隙研究概述

文章对声子晶体的概念、基本特征和分类进行简要概述.总结分析一维声子晶体的三种简化模型和一维声子晶体的计算方法及其带隙研究成果.展望一维声子晶体在低频振动、噪声控制、抗振防震方面的应用可能,为深入研究一维声子晶体提供依据.     

溅射法在不同O2／Ar比例下制备HfO2薄膜

作为一种性能稳定的绝缘体,HfO2在电子、光学以及能量相关的领域中有着重要的应用。在本工作中,我们使用反应溅射方法在不同O2／Ar比例下制备了HfO2薄膜。XRD结果显示,O2／At比例并不能明显的影响样品的结构。通过Debye—Schener公式估计,样品由纳米晶粒组成。在O2／Ar比例为0．06（功率12W）时制备的样品最接近化学配比。在可见光区域,样品具有很好的透光率,T〉85％。明显的吸收发生在波长小于220nm时。通过Tauc公式可以估算出,样品的带隙在5．051到5．547eV范围内变化。     

再分配视角下缩小收入分配差距的对策研究

改革开放以来,我国居民收入分配差距逐年扩大,成为当前我国社会发展亟需解决的重要问题。那么,从再分配角度分析居民收入分配差距拉大的原因是：税收调节收入分配功能弱化,财政转移支付调节收入分配功能微弱和社会保障体系建设滞后;鉴于此,对如何在再分配领域优化税制结构强化税收自动稳定功能、推进财政转移支付制度改革、完善社会保障体系以缩小收入分配差距等方面提出了对策研究的建议。     

Effects of curricular emphasis in college on the GRE and its impact on the gender gap in performance

Previous research has indicated positive relations between a curricular emphasis during college and improvements in GRE performance for content that matches that emphasis. However, measurement issues and a lack of a theoretical approach have contributed to a lack of precision and detail in the estimates of the relation between college experiences and performance for relevant content. In the current study, we hypothesized that differences in training between students majoring in math related majors and students majoring in reading and writing related majors would be differentially related to the size of the changes on GRE performance. Further, we hypothesized the gender gap in GRE-Quant performance would be reduced when the higher likelihood of males majoring in math related majors was modelled. The expert performance approach was used to develop three path models (including curricular emphasis, college grade performance, previous performance on the SAT, and gender) to compare the effects of the relation of a curricular emphasis in math on GRE-Quant performance to the effects of the relation of an emphasis in reading and writing on GRE-Verbal performance. The results indicated support for our predictions that a math course emphasis was related to larger GRE performance gains and that gender differences in curricular emphasis during college partially mediated the large gender gap in GRE-Quant performance. Additionally, higher grade performance average was found to positively predict GRE performance with college experiences and previous performance statistically controlled. Implications for the relation between training accrued during college courses and changes in GRE performance are discussed.     

我国居民收入差距扩大问题的教育因素分析

我国居民的教育差距与收入差距之间存在着代际传递效应,要缩小居民收入差距,就必须缩小教育差距。政府对教育投入不足、教育经费分担机制不合理、教育经费投入结构失衡、教育体制的缺陷都不同程度地导致了教育差距的扩大。要发挥教育调节居民收入差距的作用,必须大力解决教育不公问题,加快实施教育均衡发展战略。     

石油类院校大气污染控制工程课程教学模式改革实践与探索

根据大气污染控制工程课程的特点和教学实际,在详细分析了目前石油类院校大气污染控制工程课程存在的问题,通过改变教学理念突出石油石化特色,将教学内容与油气田典型大气污染物的产生与治理进行有机耦合,改革教学方法和实践环节等一系列措施进行了大气污染控制工程课程教学模式改革的实践与探索实施方法,取得了一定成效。