一种定量敏感性问题的随机化调查方法

在敏感性问题的随机化调查中,既有调查个体是否具有敏感属性的二值敏感性问题,即属性特征问题,又有调查特定人群中敏感指标量的“多少”问题,即定量特征敏感性问题.对于定量特征敏感性问题的调查,E ichhorn,H aryre于1983年提出了一种随机化调查方法,并给出了定量敏感问题指标量均值的一个无偏估计.本文提出一种定量特征敏感性问题的随机化调查方法,得到的结果表明,本文提出的方法优于E ichhorn,H aryre(1983)提出的方法.     

主位结构与句子的主语关系

韩礼德和汤普森对主位所下的定义是:主位是句子开端的部分。这里着重分析各种语气结构中的单项主位的表现,发现英语主语在多数情况下充当无标记性主位,主语和主位的重合在陈述句中尤为明显。但是,英语主语有时也可以充当无标记性述位(如在有些疑问句和感叹句中),在少数情况下,主语还可以用作有标记性的主位。     

肇庆市居住区绿化树种及其分析

通过对肇庆市居住区的实地调研与树种鉴定，记录了134种绿化树种，其中乔木75种。灌木53种，木质藤本6种。主要隶属于桑科、棕榈科、苏木科、大戟科、夹竹桃科、挑金娘科。经过分析，有针对性地对肇庆市居住区提出了绿化建议，建议多采用耐荫植物与景观植物，合理进行树种配置，可采用复式立体栽植及景观陪衬等绿化方式。     

论黄宗羲的朴素民主思想

在中国思想文化史上,黄宗羲是一个具有伟大地位的杰出人物。这原因是多方面的,但首先在于他作为中国早期启蒙学派的最主要代表,提出了一些超越前人、影响和启迪后者的朴素民主思想。文章试图主要从主权在民意识、政体监督意识、法治与民主意识、工商皆本意识四个方面来论述他的朴素民主思想。     

Improvement of Highway Safety I: Identification of Causal Factors Through Fault-Tree Modeling1

As the first article of a two-part series, the purpose of this paper is to examine the functional factors that contribute to automobile accident occurrence and to model the causation structure in the form of a fault-tree. The fault-tree model provides an intuitive framework for qualitatively decomposing possible pathways to accident occurrence. Fault-tree analysis also provides a statistical representation of how interacting driver, vehicle, and environmental factors contribute to the likelihood of automobile accident occurrence. The application of this model facilitates pinpointing those factors that most contribute to accident causation and subsequently enables the identification and comparison of potential crash avoidance technologies.     

Summarizing the Effect of a Wide Array of Amenity Measures into Simple Components

A significant issue existing within the rural economic development literature revolves around the difficulty with sorting out the controversy of the effects of amenity activities on rural economic growth. This problem is due to the different ways amenity attributes are linked to regional economic performance. Numerous researchers utilize principal component analysis to compress groups of variables that describe attributes of natural-based amenity and quality of life into scalar measures. While principal components are good at reducing a collection of variables into single measures, they often lack interpretability because they define some abstract scores which are often not meaningful or not well interpretable in practice. We apply the simple component analysis suggested by Rousson and Gasser (2004, Applied Statistics 53, 539–555) to summarize the information in groups of variables into a limited number of simple components and improve interpretability at a modest loss of optimality. Simple components allow us to identify and interpret the effect of attributes that most influence regional economic performance so as to gain better insight into policies to preserve and advance those attributes. The same methodology is appropriate for any social science discipline when there is a need to replace a larger number of multiple indicator measurements with a smaller set.     

字正腔圆:语言在歌唱艺术中的基本规则

咬字、吐字与发声的关系相辅相成,“字正”的同时且要注意行腔的圆润,力求注意自然语言与歌唱语言的区别。字头、字腹、字尾三者的发声应与语音两方面同时训练,不可忽视任何一方。     

文化语境中的桃树论略

文化语境中,桃树的花叶、子果、枝木都烛照着文化的辉光,它是那样致密地渗透在中国文化的肌理中。它的花叶象征着春天、爱情、美颜与理想世界。子果融入了中国的仙话中,隐含着长寿、健康、生育的寓意。枝木用以驱邪求吉,在民间巫术中得以广泛应用。文化中,桃树是一个多义的象征体系。     

科学理论模式初探

本文提出了科学理论模式具有多样性,开放性和主客观的统一性,并分析了科学理论的三层次结构和特点:客观性、自洽性、简单性、动态性和预测力,最后给出了科学理论模式的数学表述,并从中得到建立科学理论的几种途径.     

Kurtosis and spread

An increase in kurtosis is achieved through the location- and scale-free movement of probability mass from the “shoulders” of a distribution into its centre and tails. We introduce a coherent structure of ordering and measures, requiring no symmetry assumption, that represent different formalizations of this movement. For this purpose spread functions and spread-spread plots are defined. The orderings impose growth patterns on the spread-spread plot of the distributions involved, and the weakest involve both a specific scale-matching technique and placement of “shoulders”. The role of existing kurtosis orderings and measures in this general context is identified and examples discussed throughout.