Minimum-area confidence sets for a normal distribution

When making inference on a normal distribution, one often seeks either a joint confidence region for the two parameters or a confidence band for the cumulative distribution function. A number of methods for constructing such confidence sets are available, but none of these methods guarantees a minimum-area confidence set. In this paper, we derive both a minimum-area joint confidence region for the two parameters and a minimum-area confidence band for the cumulative distribution function. The minimum-area joint confidence region is asymptotically equivalent to other confidence regions in the literature, but the minimum-area confidence band improves on existing confidence bands even asymptotically.     

“党派实在论”的结构诠释学

如果政治宣传,意识形态以及党派性等概念真的从这些概念本身的内涵来界定自身,那么,在追逐某个政治议程时,这些概念由于存在明显的偏见,从而会导致自相驳斥的结果。因此,毫不奇怪,这些沟通类型的显明特征之一就是宣称它们在精准和公平地再现实在,并且否认存在政治偏见的丑恶内涵。笔者称这种类型为“党派实在论”,即被政治驱动的媒体演出,它们象征性地把自己呈现为是在实在论类型下运作的。本文的问题是,党派性媒体报导是如何在追逐自身的政治议程的同时创造出一种中立且无偏见的实在论表象的。为此,本文借用文化社会学的结构诠释学方法,以“奥莱利实情”这档非常流行的美国电视新闻节目作为党派实在论的分析案例。本文认为,“奥莱利实情”是通过如下几个范畴来生产一种用以诠释新闻的“党派实在论”框架的：主持人形象建构、围绕二元对立符码形成复杂的潜在意义结构,以及一套精致奥妙的修辞技巧。虽然这档节目自诩是一扇投射现实的简单窗户,但事实上,它启用一套精妙的党派文化系统来确证观众通过这扇明显中立的窗户所看到的东西能够支持节目制作人的政治利益。为了让新闻呈现在一定程度上暗合各种党派结论但又看起来依然是实在论,而非充斥着偏见,节目的每个情节和片段都依据一个意义结构来搭建问题。这个意义结构虽然具有强烈的党派结论导向性,但又能给人一种对各方观点都进行过理性思考的外表。本文认为,这种针对意义结构的深度分析对于理解作为政治沟通类型的“党派实在论”具有重要意义。     

Pregnancy,the Family,and Work: An Historical Review and Update of Legal Regulations and Organizational Policies and Practices in the United States

In spite, or sometimes because, of extensive employment legislation, women have still not achieved economic equality. Traditionally, pertinent employment legislation either singled women out for less-preferential treatment (treating women very differently from men) or treated them exactly the same as men. Both extremes may be based on the idea that the workplace is essentially male, and women should either be prohibited from entering the workplace, or should accept standards designed around male employees. An historical review of the issue of pregnancy/family leave examines the impact of such gendering. Recent legal developments are described. Finally, additional changes that would help create a more gender-neutral workplace are identified and discussed.     

Population growth in colonial America: A study of Ipswich, Massachusetts

Abstract During the colonial period, the settlements that subsequently became the United States of America experienced a tremendous growth of population. Although part of this increase was due to emigration from England and other European countries, most of the growth must be laid to the natural increase of the immigrants and their descendants. We are only beginning to probe the mechanisms ofthis increase. By numerous local studies, using the methods of historical demography that have largely been developed with work in French and English sources, we should eventually be able to describe the demographic nature of New World communities, and to understand how their populations were responding to a new physical, social and economic environment.     

“a Difficult Life”: The Perceptions and Experience of Poverty in South Africa

The purpose of this article is to provide a fuller and more integrated understanding of poverty based on the results of a nation wide participatory study recently completed in South Africa. A surprisingly consistent view of poverty emerges from the study which includes social isolation, malnourished children, crowded homes, the use of basic energy sources, no employment, and fragmented households. A clear image of what results from extreme poverty also emerges comprising continuous ill health, arduous and often hazardous work for virtually no income, no power to influence change, and high levels of anxiety and stress. The article concludes that conventional definitions of poverty do not fully describe the experience of poverty as analysed by the poor themselves. Instead, the multidimensional nature of poverty suggests that three basic concepts would be useful in any analysis of extent, nature and persistence of poverty. These are sufficiency, access and vulnerability.     

Interpersonal Perspectives on Black–White Health Disparities: Social Policy Implications

There are large and persistent disparities between the health status of Blacks and Whites in the United States. On average, the mental and physical health of Blacks is much poorer than Whites. In this article, we discuss several potential direct causes of Black–White disparities in health status, which include biological or genetic factors, prejudice and related processes, and socioeconomic factors. We also consider how the system-level, patient-level, and provider-level components of healthcare contribute to disparities in health status. We examine in detail the psychological processes associated with patient- and provider-level factors that may produce healthcare disparities. Of particular interest is the potential impact of racial attitudes and stereotypes on provider–patient interactions. Finally, we propose possible directions for future research on health disparities and discuss policy changes that might reduce disparities in health status and healthcare between social groups.