青海羌族文化述略

本文借助考古资料,叙说了青海古代文化中的羌族文化系列,并对其文化特征的差异性作了分析。     

探析俄汉礼节语言的民族文化差异

俄汉礼节语言的民族差异是两种文化价值观差异的反映。在汉文化中,独特的中华传统和民族文化形成了中国特色的复杂的礼节语言体系。在俄文化中,礼节语言明显带有简单化、模式化和抽象化的特点,这同俄罗斯民族的思维方式密切相关。     

“文化族别化”的当代困境及其反思

民族识别工作中以客观的民族文化特征作为民族分类的主要依据,导致了人们对民族文化具有独特性、民族之间的文化具有差异性的强调,最终导致了"文化族别化"。"文化族别化"不能解释不同群体之间普遍存在的交往、交流、交融的客观事实,又将地域性的文化转化为具有明确民族归属的民族文化。对"文化族别化"这种社会认识面临的困境展开讨论和反思,有利于申明民族之间存在广泛的文化交流和客观联系。更为重要的是,承认民族之间的交流和联系比刻意地强调民族之间存在的差异更加重要。     

论民族视角的经济研究

本文提出把民族作为中国少数民族经济或民族经济学的分析框架。民族生存的自然环境和民族认同的文化特质构成民族概念的内在规定,并呈现为民族经济生活自然差异和文化差异二重性。把握民族经济生活差异二重性是建构学科理论框架的关键。     

An improved alternative estimation procedure for current population mean in presence of positively and negatively correlated auxiliary variables in two-occasion rotation patterns

Abstract

The present study confirms the influential role of a positively and a negatively correlated auxiliary variables in enhancing the precision of estimates of current population mean in two occasion rotation (successive) sampling. Exponential-type estimators of current population mean have been proposed for three different situations: (i) the information on a positively correlated auxiliary variable is readily available on both occasions (ii) the information on a negatively correlated auxiliary variable is readily available on both occasions and (iii) the information on both positively and negatively correlated auxiliary variables are readily available on both the occasions. The characteristics of the proposed estimators have been explored and their efficacious performances are compared with the natural and recent contemporary estimators. Optimum replacement strategies of the proposed estimation procedures have been formulated. Simulation and empirical studies are carried out to justify the proposition of the proposed estimators and appropriate recommendations have been put forward to the survey practitioners.     

减排约束下中国天然气供需安全评价:2006-2014年

为准确把握中国天然气供需安全状态,以2006-2014年的数据为样本,在模糊隶属度函数量化指标值的基础上,运用层次分析法(AHP)和熵值法确定指标权重,基于线性加权和函数计算均方根进行综合评价。结果表明:(1)中国天然气供需安全指数呈现"N形"波动,2006-2007年天然气供需安全指数上升。2007-2013年天然气供需安全指数年均下降1.7979。2013年以来天然气供需安全指数开始回升,天然气供需安全压力有所缓解。(2)天然气供应安全指数从2006年的17.5914下降到2013年的0.1556,峰谷差17.4359。天然气需求安全指数呈现"W形"波动。天然气市场安全指数相对稳定,2013年以来略有上升,天然气市场风险逐年下降。(3)天然气供需安全很大程度上取决于天然气供应是否安全。因此,建议从确保天然气稳定供应、提高天然气使用效率和降低市场风险方面采取措施,维护天然气供需安全。     

甘肃省农业经济效益的地区差异及成因分析

以西部大开发战略实施以来的2001-2014年为研究时段,运用基尼系数、泰尔指数、灰色关联模型对甘肃省农业经济效益区域差异及时空演化特征进行单指标和多指标综合测度,并对其影响因素进行探讨.研究表明:甘肃省农业经济效益绝对差异呈加快扩大趋势,而相对差异和极化程度阶段性波动降低;宏观地域分异特征十分明显,北高南低、西高东低的空间格局10多年来未发生明显改变;历史发展基础、农业生产条件是农业经济效益格局演化的内部因素,而农业产业结构和区域发展政策是其外部推手.     

现代汉语语气词意义主观性的主体差异--以《雷雨》为例

文章旨在探讨说话人在使用现代汉语语气词表达主观意义时的主体差异。研究表明:表达主观意义的语言手段多种多样,说话人为了实现交际目的需对其进行选择,这种语言选择会受到各种主客观因素和话语功能的影响。文章尝试以语言主观性为理论基础, 建立现代汉语语气词意义主观性的分析模式,然后对《雷雨》中语气词意义主观性的主体差异进行了个案分析。      

Inference in Semi‐Parametric Dynamic Models for Repeated Count Data

This paper deals with a longitudinal semi‐parametric regression model in a generalised linear model setup for repeated count data collected from a large number of independent individuals. To accommodate the longitudinal correlations, we consider a dynamic model for repeated counts which has decaying auto‐correlations as the time lag increases between the repeated responses. The semi‐parametric regression function involved in the model contains a specified regression function in some suitable time‐dependent covariates and a non‐parametric function in some other time‐dependent covariates. As far as the inference is concerned, because the non‐parametric function is of secondary interest, we estimate this function consistently using the independence assumption‐based well‐known quasi‐likelihood approach. Next, the proposed longitudinal correlation structure and the estimate of the non‐parametric function are used to develop a semi‐parametric generalised quasi‐likelihood approach for consistent and efficient estimation of the regression effects in the parametric regression function. The finite sample performance of the proposed estimation approach is examined through an intensive simulation study based on both large and small samples. Both balanced and unbalanced cluster sizes are incorporated in the simulation study. The asymptotic performances of the estimators are given. The estimation methodology is illustrated by reanalysing the well‐known health care utilisation data consisting of counts of yearly visits to a physician by 180 individuals for four years and several important primary and secondary covariates.     

Empirical likelihood based detection procedure for change point in mean residual life functions under random censorship

The mean residual life (MRL) function is one of the basic parameters of interest in survival analysis that describes the expected remaining time of an individual after a certain age. The study of changes in the MRL function is practical and interesting because it may help us to identify some factors such as age and gender that may influence the remaining lifetimes of patients after receiving a certain surgery. In this paper, we propose a detection procedure based on the empirical likelihood for the changes in MRL functions with right censored data. Two real examples are also given: Veterans' administration lung cancer study and Stanford heart transplant to illustrate the detecting procedure. Copyright © 2016 John Wiley & Sons, Ltd.