Sampling Strategies for Toxic Air Contaminants

Annual concentrations of toxic air contaminants are of primary concern from the perspective of chronic human exposure assessment and risk analysis. Despite recent advances in air quality monitoring technology, resource and technical constraints often impose limitations on the availability of a sufficient number of ambient concentration measurements for performing environmental risk analysis. Therefore, sample size limitations, representativeness of data, and uncertainties in the estimated annual mean concentration must be examined before performing quantitative risk analysis. In this paper, we discuss several factors that need to be considered in designing field-sampling programs for toxic air contaminants and in verifying compliance with environmental regulations. Specifically, we examine the behavior of SO2, TSP, and CO data as surrogates for toxic air contaminants and as examples of point source, area source, and line source-dominated pollutants, respectively, from the standpoint of sampling design. We demonstrate the use of bootstrap resampling method and normal theory in estimating the annual mean concentration and its 95% confidence bounds from limited sampling data, and illustrate the application of operating characteristic (OC) curves to determine optimum sample size and other sampling strategies. We also outline a statistical procedure, based on a one-sided t-test, that utilizes the sampled concentration data for evaluating whether a sampling site is compliance with relevant ambient guideline concentrations for toxic air contaminants.     

Cross-Sectional and Longitudinal Associations of Categories of Physical Activities with Dimensions of Subjective Well-Being in Taiwanese Older Adults

Physical activity takes place in different social contexts such as leisure, home, and work. However, the differential associations of these distinct categories of activity with aspects of well-being have rarely been investigated. This study was designed to estimate independent associations of (a) leisure-time, (b) domestic and (c) work-related physical activities with subjective well-being in older adults. A cross-sectional survey was conducted in 2009 with 2,295 community-dwelling older adults aged 65 or older in Kaohsiung, Taiwan. Among them, 307 participants were selected for a 3-year follow-up study in 2012. The results based on cross-sectional and longitudinal analyses demonstrated that leisure-time physical activity, after multivariate adjustment, was positively associated with five dimensions of well-being, including ‘physical’, ‘psychological’, ‘independence’, ‘learning and growth’, and ‘social’ well-being. Household physical activity was positively associated only with ‘social’ well-being. Occupational physical activity was not related to any dimension of well-being. The study suggests that associations between physical activity and dimensions of subjective well-being during later life are dependent on the social context in which the activity takes place. This study indicates that physical activity taken as leisure has greatest potential to enhance the quality of life of older adults.     

The Role of Family Behaviors in Determining Income Distribution: The Case of South Korea

In this article, we examined what has contributed to the worsening income inequality and poverty between 1996 and 2011 in South Korea. We used a rank-preserving exchange method and a conditional reweighting method to assess the roles of family behaviors—including female labor force participation and family structure—characteristics of household heads, and men’s earnings. The results showed that the change in men’s earnings was a dominant factor in accounting for the increasing income inequality and poverty. The change in age and education among household heads also contributed significantly to the worsening income distribution. The change in family structure mainly affected the income disparity among lower-income families and increased poverty. The rise in women’s labor force participation improved the income distribution but not considerably. The distributional roles of family have not worked to prevent or reverse the worsening income distribution in the past few decades in South Korea.     

马克思“世界历史“理论的当代沉思

马克思的"世界历史"理论揭示了人类历史的走向,正日益受到人们的关注,本文着重从三个方面对这一理论 作出总结与反思.澄清了马克思世界历史理论与黑格尔世界历史理论的关系,对"世界历史"理论与全球化的关系 作出了剖析,并且阐明了这一理论在当代中国的坚持与发展。     

Boundary Politics in the Public Sphere: Openness, Secrecy, and Leak

The issue of openness/secrecy has not received adequate attention in current discussion on the public sphere. Drawing on ideas in critical theory, political sociology, and cultural sociology, this article explores the cultural and political dynamics involved in the public sphere in modern society vis-à-vis the practice of open/secret politics by the state. It argues that the media, due to their publicist quality, are situated at the interface between publicity and secrecy, which thereby allows for struggles over the boundary of state openness/secrecy in the public sphere. A theory of boundary politics is introduced that is contextualized in the relationship among state forms, the means of making power visible/invisible (media strategies), and symbolic as well as discursive practices in the public sphere. In explaining the dynamics of boundary politics over openness/secrecy, three ideal-types of boundary creation are conceptualized: open politics, secrecy, and leak. The theory is illustrated with a case study of the Patten controversy in Hong Kong.     

马克思主义"和谐"理念中的政治和谐追求

实现政治和谐是空想社会主义者向往的政治理想,他们著书立说,对政治和谐及其建立进行充分的论证,并设计方案、展开实验;马克思和恩格斯第一次把政治和谐提到理论高度,列宁则将社会主义政治和谐的建设付诸实践;毛泽东、邓小平、江泽民、胡锦涛在不同的历史阶段从不同的方面继承、丰富和发展了马克思主义的和谐观,探索着马克思主义中国化和中国特色社会主义的政治和谐之路。研究马克思主义＂和谐＂观及所蕴含的政治和谐思想对当今构建社会主义和谐社会具有重大的理论价值和实践意义。     

Body,dress and cultural exclusion: Experiences of Pakistani women in ‘global’ Hong Kong

Underneath a veneer of racial harmony and acceptance, racial discrimination is widespread at many different levels of life in Hong Kong, the so-called ‘global city’. For decades, some minority communities have lived with subtle but institutionalized and cultural discrimination permeating their existence. In recent years, social exclusion has been one of the important themes in policy debates in Hong Kong. It is increasingly recognized that there is a close relation between ‘ethnicity’ and ‘social exclusion’. According to our research on the life situation of the South Asian minority in Hong Kong, experiences of exclusion are common. This paper focuses on investigating dress as a form of cultural exclusion among Pakistani women in Hong Kong and how mainstream society constrains the bodies of its members through dress.     

道德的重量：论行动研究与社会工作实践

本文从中国社会工作教育面对的困境作为背景,再一次梳理社会工作专业的本质,认清社会工作专业作为道德和政治实践的面向。本文进一步简单介绍社会工作研究发展的历史,指出其知识生产与其他社会科学差异之处,以及实证主义研究的问题。最后,本文讨论行动研究与社会工作实践的关系,从而认为行动研究是最具有社会工作性格的研究范式。     

Effectiveness of Social Welfare Programmes in East Asia: A Case Study of Taiwan

Using the 2008 Family Income and Expenditure Survey, this study examined the effectiveness of social welfare programmes in Taiwan. The empirical evidence shows that most types of social welfare spending were limited in 2008. However, the social welfare programmes that were in place substantially reduced income inequality in Taiwan. Using the Organisation for Economic Co‐operation and Development (OECD) poverty threshold, the results reveal that 14 per cent of the sample's families were poor in terms of market income, but this figure decreased to 7 per cent after government intervention. Income inequality in Taiwan was similar to that of other East Asian countries such as Japan and South Korea, but Taiwan spent much less money on social welfare programmes than OECD countries, and therefore Taiwan's reduction of poverty was much lower as well.