On the Preliminary Test Backfitting and Speckman Estimators in Partially Linear Models and Numerical Comparisons

Przystalski and Krajewski (2007 Przystalski , M. , Krajewski , P. ( 2007 ). Constrained estimators of treatment parameters in semiparametric models . Statist. Probab. Lett. 77 : 914 – 919 .[Crossref], [Web of Science ®] , [Google Scholar]) proposed the restricted backfitting (RBCF) estimator and restricted Speckman (RSPC) estimator for the treatment effects in a partially linear model when some additional exact linear restrictions are assumed to hold. In this article, we introduce the preliminary test backfitting (PTBCF) estimator and preliminary test Speckman (PTSPC) estimator when the validity of the restrictions is suspected. Performances of the proposed estimators are examined with respect to the mean squared error (MSE) criterion. In addition, numerical behaviors of the proposed estimators are illustrated and compared via a Monte Carlo simulation study.     

给水管网水力建模实例分析

给水管网水力模型是自来水公司信息化建设的关键技术。该文介绍了国内3个城市的自来水公司进行给水管网水力建模的情况,并分析了各自的特点及实际应用效果。     

The Libertarian paradox: some further observations

It is shown that the weak Pareto principle consists of two parts: Pareto Neutrality and Weak Pareto Unanimity. It is the Pareto Neutrality which is responsible for the Paradox of the Paretian Libertarian. The libertarianism condition can also be factorized into two parts: the Libertarian Invariance and the Libertarian Non-Imposition. It is the Libertarian Invariance which is responsible or the Paradox of the Paretian Libertarian. Under conditions of Unrestricted Domain, Pareto Neutrality and Libertarian Invariance, if we require a social preference to be acyclic, then(1) neither can individuals' personal rights be respected, nor can they be reversed;(2) neither can unanimous group rights be respected, nor can they be reversed. Consequently, the Paradox of the Paretian Libertarian is due to the inconsistent use of information contained in the weak Pareto principle and the libertarianism condition.I would like to thank Nick Baigent, Prasanta Pattanaik, John Riley, Amartya Sen and Kotaro Suzumura for their comments. I would also like to thank two anonymous referees for their suggestions and comments on earlier drafts of the paper which led to a great improvement of the present version.     

The effects of religion on subjective aging in Singapore: An interreligious comparison

This interreligious comparison deals with Buddhist and Christian Chinese elderly Singaporeans. Based on the data gathered from in-depth interviews with five Buddhists and five Christians, this article explores how religion plays a role in the adjustment to the physical, social, and existential aging processes. It investigates the similarities and differences between Buddhist and Christian beliefs in terms of their effects on the subjective experience of aging. Findings indicate that religion can play an integrative role that facilitates adjustment to the aging process. Also, they suggest that though there are fundamental, irreducible differences in terms of religious beliefs and practices between Buddhism and Christianity, there are far less differences in the ways they impact on the integrative aging process. Some negative effects of religion on aging and some viewpoints about successful aging are presented in the discussion.     

Intergenerational relationships in Chinese transnational families: A typology study

ABSTRACT

Using latent class analysis, this study examined the overall patterns of multifaceted intergenerational relationships of 604 parent-child dyads in 292 transnational families in Beijing, China. Three family relation types emerged: local obligatory (27%, with reciprocal support and ambivalent feelings), distant discordant (27%, with weak associations and high conflict), and distant intimate (46%, with highest filial ratings and emotional quality). Parents’ health and children’s marital status, socioeconomic status, childcare responsibilities, and sibling numbers were associated with different relation types. The findings are helpful for social workers to identify subgroups of older adults in transnational families who are at risk of having inadequate support.     

Change point detection for COVID-19 excess deaths in Belgium

Journal of Population Research - Emerging at the end of 2019, COVID-19 has become a public health threat to people worldwide. Apart from deaths with a positive COVID-19 test, many others have died...     

中国人口学会第七届会员代表大会暨第九次全国人口科学讨论会综述及学会领导机构名单

2007年12月28～29日,中国人口学会第七届会员代表大会暨第九次全国人口科学讨论会在北京中苑宾馆隆重开幕.参加会议的有第九届全国人大常委会副委员长、中国人口学会第六届会长彭佩云,国家人口计生委主任张维庆,国家人口计生委党组书记、副主任李斌,副主任王培安以及各地人口学会的代表.会议主要由三部分组成:开幕式,学术研讨会和换届选举.大会结束后,第七届学会常务理事会举行了第一次会议.     

一个多民族文学融合互动的范本——《述善集》文学文献价值考述

“Tangwu” is an alternative name for the descendants of the Xixia dynasty. In 1227 AD, a number of these Xixia descendants moved inland after the destruction of the Xixia Dynasty by the Mongolians. One group of them migrated to the area near Puyang, Henan Province. Tangwu Chongxi ( Yang Chongxi ) of the Yuan Dynasty compiled the Shu San Ji, which is divided into three volumes: Shansu, Yucai and Xingshi, and appended with the biography of Boyan Zongdao. It reflects the historical origins, social class, living conditions and the relations with the Han people of the descendants of the Dangxiangqiang minority af-ter they moved to Puyang. This book attracted a lot of attention in academic circles, and it was there-fore reorganized and published in 1985 after being treasured by the people for more than 600 years. It has high academic value for its comprehensive his-torical records. We can not only acquaint ourselves with the history of the make-up of the Chinese na-tion, but also research this diversity from multiple perspectives, such as history, nationality and folk-lore . That is why it has drawn so much attention a-mong academic researchers. The book contains po-ems, prose and biographies, which belong to dif-ferent celebrated scholars from different ethnic mi-norities, all of whom had relationships with Tang-wu Chongxi. It is also a typical model of Qiang-Han literature, which is very rare. This paper gives a preliminary exploration on the book, and shows a small part of its comprehensive value. Shu San Ji is not a merely personal collec-tion, but is also different from general literature collections. The compilation of the book took a long time. Shu San Ji Xuxie ( Continuation of Shu San Ji) , written by Zhang Yining, was finished in the 18 th year of the Zhizheng Period in the Yuan Dynasty (1358), which indicates that the Shu San Ji had already been finished by that time . Zeng wuwei chushi yangxiangxian xu ( Presented to Chu Shi Yang Xingxian·Preface ) , written by Wei Su and finished in the 24 th year of Zhizheng ( 1364 ) , suggests that the Shu San Ji had been compiled in-to a book by that time, and that it was compiled with the compositions of social celebrities of the time. However, the Shu San Ji, as it has been handed down to us today, includes the Song Yang-gong Xiangxian gui Tanyuan xu ( Preface of Send-ing Yanggong Xiangxian Back to Tanyuan) by Tao Kai, written in March in the 5 th year of Hongwu in the Ming Dynasty ( 1372 ) . It indicates that Yang Xiangxian kept on collecting articles even after the book was finished. The Xu yangshi yiji ( Preface of Yang’s Last Collection) by Wang Chongqing, writ-ten in the 6th year of Jiajing (1527), indicates that the Shu San Ji was still being written after Yang Chongxi’s death. At the end of the Shu San Ji , Boyang Zongdao zhuan ( Biography of Boyang Zongdao) and Weiti shi (Poems) were collected in the 16 th year of Zhengde in the Ming Dynasty (1529) and in the 16th year of Shunzhi in the Qing Dynasty (1629), respectively. It suggests that the
Shu San Ji had been supplemented and continually recompiled since Yang Chongxi firstly finished his book in 1358. After 271 years, in 1629, the Shu San Ji, as we read it today, was finally comple-ted. Through the basic components of the Shu San Ji,readers can understand that the Tangwu family was a harmonious, multi-ethnic family. A number of multi-ethnic writers spent long periods compos-ing works collected in the Shu San Ji and Tangwu Chongxi was also influenced by China’s diverse culture and traditional Confucian culture. The work is strongly connected with his study in Guozixue. In the late Yuan Dynasty, the restora-tion of the imperial examinations promoted Confucianism’s influence further. Pan Di, as Tang-wu Chongxi’s teacher in Guozixue, wrote most arti-cles in the Shu San Ji, which shows their close re-lationship and his influences on Tangwu Chongxi’s literature and Confucian studies. Tangwu Chongxi and others’ works reflected their sense of admira-tion for and deep feelings for their Dangxiang an-cestors, but more so helped to propagate the con-cepts of Confucian edification, diligence, thrifti-ness and benevolence, and some of them did so in a very polemic way. For example, Boyan Zongdao wrote the Jiefu xu ( preface of “Jiefu”) and Tang-wu Chongxi wrote the Jiefu houxu ( epilogue of“Jiefu”) , which reflect the social reality and ide-ology of all scholars with different ethnic back-grounds at that time. His work, “Tangwu gong-bei” fushi ( Poem inscribed on Tangwu Tablet ) , was written in a plain and authentic way and showed that he always remembered his origins and his ethnic desire to inherit the family’s heritage. Meanwhile , it was also mixed with the popular ide-as of upholding the honor of their ancestors from the central plains and Han areas, which shows the
editorial purpose of the Shu San Ji and also dem-onstrates the value of Chinese multi-ethnic litera-ture and cultural integration.     

就业优先:以"公平而有质量"的教育 在民族地区阻断贫困代际传递

“发展教育脱贫一批”是在民族地区实现共同富裕的重要方针。然而在“教育改变命运”的共识之外,布迪厄认为教育一代代地维持着对社会中下阶层的不公平的“文化再生产”理论,被一些学者应用于对我国少数民族教育的研究。如在“三区三州”等民族地区,代际间的贫困传递难以阻断,因家庭文化资本弱势而造成子女求学、求职受阻,看似可用“贫困文化的再生产”予以概括,但笔者不同意直接套用西方理论认定中国存在“教育不公平”的论述。因为我国社会实际与布氏提出“学校教育再生产社会阶层结构”观点之环境不同,有多项教育政策在切实保障着少数民族通过“教育改变命运”——当前在我国民族地区实现教育公平的主要障碍,并非 “文化再生产”的结构性阻力,而在于就业环节的阶段性困难。教育公平可分为起点、过程和结果三个环节,民族地区经多年教育扶贫,“起点”入学机会和“过程”教育质量已明显改善,而作为“结果”的就业环节亟待改善。以“就业优先”方针多渠道扩大少数民族就业,可激发内生动力、促进市场融入、巩固减贫成效和精准防控返贫,是助少数民族自主掌握教育“社会阶梯”和阻断贫困代际传递的有效路径。     

“十七年”时期中国少数民族题材电影的共同意识叙事

以“共同意识”作为切入点,采用较为深度的泛文本语境方法,对“十七年”时期少数民族题材电影作品进行叙事层面的剖析,尝试对其间的话语策略进行归纳,并着重探讨其如何通过影像化、故事化叙述共同历史、共同故事,诠释民族关系和党的民族理论与政策,探讨影像与时代话语间的互动关系,分析个体身份与中华民族认同的建构路径。这一时期有着独特的叙事话语方式,总是倾向于以国家话语统合族群、家庭观念,以家国情感取代个体情感,以阶级认同重构他者阵营、以阶级矛盾替代故事冲突从而实现国家意识形态融入民族题材的书写;其间旖旎多姿的少数民族地域风光再现、与汉杂糅的少数民族民俗风情再造、敢于斗争的少数民族女性形象塑造,又在一定程度上成就了民族话语对国家话语兼容之下的“黄金年代”,并成为时代符号而深深嵌入一代观众的集体记忆当中;还多采用黑暗与光明的象征、身体与疾病的隐喻、身份与认同的建构等方式进行共同文化的叙事。经由国家话语的规训、民族话语的兼容以及“国族、家国同构”的话语体系,如何建构关于新中国的文化想象与共同体想象,塑造出一个通过异域空间、民族风情、人物形象等景观展示出来的“共和国”,将各民族同胞通过少数民族题材电影凝聚在一起,通过“讲述过去”“讲述当下”,进而“塑造未来”,从而印证“意识形态工具是‘十七年’时期少数民族题材电影的话语本质”这一结论。