中国教育事业发展的实证分析

随着我国经济的快速发展，国力的迅速提升，我国的教育事业也取得了前所未有的进步，为了从量上衡量教育所取得的成就，以及对全民族化素质提高的影响，构建了两个指标：人均受教育年限、教育基尼系数，利用第四次、第五次人口普查的数据，进行了计算，从结果中可以看出，我国各地区的教育事业成就惊人，但是，发展并不平衡。同时，提出了两个令人惊讶的，值得深入研究的教育的“平均之谜”。     

近百年来中国对文物建筑与历史地段的保护

论文以1949年为界,分两大部分叙述了迄今为止大约100年来中国对文物建筑与历史地段的保护。总结出1949年后中国近代文物建筑保护思想观念的演变特征,即前期以具有社会主义特色的保护观念为主,80年代以来发展为逐渐与国际接轨。     

女性妆饰与民国初年的女性解放

妆饰是精神的外化。伴随着民初女性解放运动的发展,传统的女性妆饰向着西装化与时装化、多元化与个性化的方向发展。并且出现了实用性与审美性的结合、地域与层次的不同等变化。     

建国50多年来中国外交的基本特征论析

建国50多年来,中国共产党三代领导集体在中国外交政策和策略等方面,表现了相当的一致性。在这些方面,后一代领导集体与前一代领导集体之间有着承继关系。当然,后一代领导集体也有新的重大的发展。其实,这种一致性衬托了当代中国外交的基本特征,或者说,形成了当代中国外交的传统。文章基于对50多年来中国外交的分析,归纳出中国外交的四个基本特征,这就是外交原则和政策的一贯性、外交目标的双重性、外交形式的多样性以及外交对象的层次性。     

A graphical summary of disparities in health care and related summary measures

In order to assess the effectiveness of government programs designed to reduce disparities in the health care minority groups receive relative to the majority white population, a proper statistical measure should be used. This article proposes a measure of and its accompanying graph, which is readily interpretable and is not affected by the number of minority subgroups examined.     

A simulation study of a discrete-time multiserver retrial queue with finite population

In this paper, we deal with a discrete-time multiserver retrial queue with finite population. Firstly, we study the Markov chain at the epochs immediately after slot boundaries making emphasis on the computation of its steady-state distribution. Then, the main performance measures are investigated. Besides, we simulate the waiting time of a customer in the retrial group under three different queueing policies. Some numerical examples are given to illustrate the analysis.     

汉初时代转型与《淮南子》的学术境遇

汉初的时代转型,有着如下特质:在社会经济状况方面,经历了从“休养生息”到“争于奢侈”的过程;在政治局势上,由“诸侯割据”演化为“强干弱枝”政策的全面推行;在思想与学术方面,“黄老擅权”的状况转变为“儒术独尊”之势。《淮南子》之所以未受当政者的推崇,主要原因即在于未能合乎时代转型之需。     

A probablistic analysis for an optimal screening problem

Summary We consider a lotL formed byN apparently similar unitsW ₁,…,W _N, where each of theW _i may come from one of two different populationsP ₁ andP ₂;T ₁,…,T _N denote the corresponding lifetimes. The units fromP _i undergo a failure of kindi and their survival function isS _i (t). We assume that the failure rate function are known and that the units fromP ₁ are ?substandard?: λ ₁ (t)≥λ ₂ (t), ∀t≥0. We want to putW ₁,…,W _N under a pre-operational test (burn-in test) in order to eliminate at least a great part of the substandard units and we face the problem of obtaining a rule for stopping the test under the assumption that, with the failure of a unit, it is possible to recognize the population from which the unit comes. Such a problem will be formalized as an optimal stopping problem for a suitably defined Markov process. Our study shall evidentiate some fundamental aspects of the problem and the role of the prior distribution of the (random) numberM ₀ of those units inL coming fromP ₁ (substandard). The latter distribution has a great influence on the form of the solution. This research was supported by the C.N.R. Project ?Statistica Bayesiana e Simulazione in Affidalità e Modellistica Biologica?.     

东晋南朝出土墓志若干问题探析

东晋南朝墓志的渊源、摆放位置、纪时格式及"一志多方"现象等若干问题,是前人相关研究中有所涉及,却仍有待深入的重要方面。东晋墓志出现的内在原因,是受西晋已经形成的使用墓志的风习的影响,源自西晋;而其所呈现出的外在特征,却又受到南方使用志墓砖铭的丧葬习俗,以及东晋时期特殊的政治环境与社会背景等多种因素的影响。与东晋至南朝墓志发展、定型的过程相吻合的是,墓志的摆放位置、纪时格式也同样经历了从不稳定到稳定的变化过程。东晋、南朝墓志中的"一志多方"现象,虽然比较特殊,但大多具有很强的随意性与偶然性,且出现的时间也不稳定。     

小提琴双音与和弦演奏概述

双音是小提琴演奏内容中重要的部分,分同度、二度、三度、六度、八度、换指八度和十度等几种。它增添音乐的表达效果,强调了音乐的丰富性。通过理论与实践相结合的练习方法,会把音乐演奏的更华丽动听。