Multivariate distributions defined in terms of contours

The paper deals with the problem of using contours as the basis for defining probability distributions. First, the most general probability densities with given contours are obtained and the particular cases of circular and elliptical contours are dealt with. It is shown that the so-called elliptically contoured distributions do not include all possible cases. Next, the case of contours defined by polar coordinates is analyzed including its simulation and parameter estimation. Finally, the case of cumulative distribution functions with given contours is discussed. Several examples are used for illustrative purposes.     

农村互助合作金融模式绩效分析

互助合作金融是中国农村金融市场的一种创新融资模式，尽管其组织化、制度化经营时间短、经验少，融资能力还很微小，但已经表现出财务上可持续发展的能力，在满足农户小额贷款方面的补充作用十分显著。资金互助合作密切了社会成员的相互关系，改善着农村社会关系，社会整体信用水平、将为之提高。论题分析了《农村资金互助社管理暂行规定》颁布前后农村互助合作金融模式的制度绩效、功能绩效和社会绩效。     

近代资本主义生产生活方式对中国传统慈善事业的影响——以北京为例

以交通、通讯、新闻舆论等为典型代表的近代西方资本主义生产与生活方式传入中国后，它们或便利救济物资的调配，或加速救助对象的区域流动，或监督与制约救济事务的运转，或宣传与流播新型慈善思想等，从整体上对中国传统慈善活动的近代转型发挥强大的刺激与推动作用。     

新世纪"模具设计与制造"专科专业课程体系改革的研究

文章从社会和科技的发展出发,对模具专业课程体系改革的相关问题进行了研究,拟定的改革方案已付诸实施,并已取得初步成果.     

中日文化差异与日语教学

中日两国一衣带水,相互毗邻,有着两千多年的友好交往历史。在语言文字方面两国人民互相学习,相互影响,有不少相同、相似之处。但其中也有一些看似相同,实际上已经出现差异并具有特色的词汇和习俗,弄清这些词汇和习俗差异对我们学习日语和同日本人交流大有益处。尤其是在日语教学中,把这些词汇与习俗的异同及时渗透给学生,把中日文化的对比融入日语语言教学中,既可大大地活跃课堂气氛,又可提高学生的积极性和交际水平、应用能力。     

A sociolinguistic application of Bakhtin's authoritative and internally persuasive discourse

Through the use of two central Bakhtinian concepts, authoritative and internally persuasive discourse (word), this paper examines the tension between the ideology of linguistic hegemony as a source of power in the Greek public sphere and the condition of language shift faced by the Albanian‐speaking communities of modern Greece. I argue here that a cautious application of these two notions, which are relevant to linguistic ideology, can reveal crucial aspects of two processes: that of subordination to and that of questioning of the dominant linguistic ideology by local Albanian‐speaking communities. Thus, in language shift contexts, it is possible that no simple relations obtain that place social agents in unquestionable and easily predictable positions. Such an approach proves useful for the sociolinguistic study of threatened language communities.     

Estimation of Hazard, Density and Survivor Functions for Randomly Censored Data

Maximum likelihood estimation and goodness-of-fit techniques are used within a competing risks framework to obtain maximum likelihood estimates of hazard, density, and survivor functions for randomly right-censored variables. Goodness-of- fit techniques are used to fit distributions to the crude lifetimes, which are used to obtain an estimate of the hazard function, which, in turn, is used to construct the survivor and density functions of the net lifetime of the variable of interest. If only one of the crude lifetimes can be adequately characterized by a parametric model, then semi-parametric estimates may be obtained using a maximum likelihood estimate of one crude lifetime and the empirical distribution function of the other. Simulation studies show that the survivor function estimates from crude lifetimes compare favourably with those given by the product-limit estimator when crude lifetimes are chosen correctly. Other advantages are discussed.     

职业地位取得的社会性别差异

本文从描述被调查夫妇之间职业流动的性别差异出发，分别勾画出他们的地位实现模型。首先验证了不论性别，教育地位都是决定职业地位实现的首要变量；但也正是在教育地位的实现和向上流动(再求学)中，伴随婚姻生育等生命事件的发生，无形的结构性制度因素(意识形态层面的性别制度、性别规范和性别文化)正如后现代主义试图解构的那样依然支配着性别角色的社会化和继续社会化，使扮演双重角色的妻子或无意识地或有意识地遭遇了丈夫不为之所累的两难困境，并最终阻碍了女性的教育地位、既而是职业地位的实现。本文最后提出了三点建议和几个尚待解决的问题。     

小议英语无灵句及其翻译

无灵句是英语中一种很重要的句式结构，能否掌握无灵句的特点及其翻译方法直接影响到英语学习者的学习效果。本文主要概括了无灵句的特点及其分类，并且归纳出较为行之有效的翻译方法。     

党项与西夏碑石刻叙录

党项与西夏碑石刻主要由夏州拓跋部家族及其幕僚的墓碑、西夏时期的佛事碑、西夏陵残碑以及西夏遗民的碑石刻等部分组成，它是“中国藏西夏文献”的特色所在，为研究西夏政治、经济、军事、文化、民族、宗教、国名、纪年、语言文字等提供了重要资料。