论古希腊—罗马与中国传统中的表达伦理学

在西方的古典修辞学理论中,品德、逻辑与情感构成了修辞说服的三个要素。演说者可以通过自身的道德品质和人格魅力,通过逻辑推理,通过调动自身或受众的情感因素,进行说服,达到预期的修辞目的。在古希腊、罗马的修辞学传统中,关于演说者品德形成方式及其功能的看法,既有唯心主义的观点,也有实用主义的观点,品德既可以是与生俱来、现实的,也可以是通过演说建构的。在中国先秦时期的修辞思想中,言说者的道德品质也被看做是影响说服效果的重要因素。在此问题上,儒家、道家、法家等的观点也存在许多差异。在本文中,作者对东西方古典时期的表达伦理传统进行了比较系统的梳理,对古希腊、罗马和中国先秦时期的表达伦理思想进行了比较分析,概括了唯心主义与实用主义两种表达伦理思想,揭示了中西方修辞伦理观上的异同。     

An efficient scheduling algorithm for the hot coil making in the steel mini-mill

This paper investigates and suggests an efficient solution to the problem of scheduling the steel making line in the Mini Steel Mill, which consists of three major processes: molten steel making, continuous slab casting, and hot charged rolling. Careful synchronization of these processes is a key productivity factor, since a very limited amount of work-in-process inventory is allowed. Since each process must run in batch, the schedule for the Mini-Mill consists of grouping and sequencing of lots for each process. However, each process has its own criteria for judging the quality of its lot grouping, which often conflicts with other processes. An efficient scheduling algorithm for the Mini-Mill is proposed. Numerical experiments with real world data suggest that the proposed algorithm yield satisfactory schedules very efficiently. The algorithm is currently used for the actual scheduling of a Mini-Mill in Korea.     

Why do children transfer to their parents? Evidence from South Korea

I examine motives behind interhousehold upstream transfers using a sample of child-parent pairs in South Korea. The estimation results indicate that upstream transfers in Korea cannot be explained by just one motive. I find evidence that altruism is the dominant motive at the margin if parental income is low, but not so if parental income is high. I also find that upstream transfers are given, at least in part, in exchange for child care service and in lieu of personal visits. There is little evidence that upstream transfers are used by children to win parental favor for future gains such as an inheritance or to repay implicit parental loans used for education. Additional evidence is provided from the analysis of the frequency of personal visits and semiparametric regressions. Determinants of downstream transfer amounts are also examined.     

Penalized regression models with autoregressive error terms

Penalized regression methods have recently gained enormous attention in statistics and the field of machine learning due to their ability of reducing the prediction error and identifying important variables at the same time. Numerous studies have been conducted for penalized regression, but most of them are limited to the case when the data are independently observed. In this paper, we study a variable selection problem in penalized regression models with autoregressive (AR) error terms. We consider three estimators, adaptive least absolute shrinkage and selection operator, bridge, and smoothly clipped absolute deviation, and propose a computational algorithm that enables us to select a relevant set of variables and also the order of AR error terms simultaneously. In addition, we provide their asymptotic properties such as consistency, selection consistency, and asymptotic normality. The performances of the three estimators are compared with one another using simulated and real examples.     

Social enterprise policy design: Constructing social enterprise in the UK and Korea

Taking the elusive definition of social enterprise as its starting point, this study seeks to understand the impact of government policies on the development of social enterprises in the national contexts of the UK and South Korea. The social construction of target populations is utilised as a theoretical framework in order to identify which factors influence government policy. A comparison of the two countries over a 14‐year period from 1997 to 2010 reveals that, despite very different contexts, governments in both countries have taken an instrumental approach to social enterprise. This tendency is more pronounced in Korea however, where government has limited the input of stakeholders and used an approval system to control access to the social enterprise name. The study concludes by recommending a more value‐oriented approach to social enterprise.     

Short-Term Prospective Effects of Impulsivity on Binge Drinking: Mediation by Positive and Negative Drinking Consequences

Abstract. Objective: Although the association of impulsivity with diverse alcohol outcomes has been documented, the mechanisms by which impulsivity predicts drinking over time remain to be fully characterized. The authors examined whether positive drinking consequences, but not negative drinking consequences, mediated the association between impulsivity and subsequent binge drinking, over and above prior binge drinking. Participants: Participants were 171 college students. Methods: Participants completed 2 online surveys with an average interval of 68 days between assessments at Time 1 (September to October 2012) and Time 2 (November to December 2012). Results: Path analysis showed that, among 5 facets of impulsivity, the effect of sensation seeking on subsequent binge drinking was completely mediated by prior positive consequences. No mediating effects of negative consequences were found. Conclusions: Prior experience of positive drinking consequences may serve as one of the risk pathways by which sensation seeking shapes binge drinking over time. Personalized intervention strategies may utilize information about students’ impulsivity facets to address their binge drinking and alcohol-related consequences.     

Whom Should We Serve? A Discourse Analysis of Social Workers’ Commentary on Undocumented Immigrants

We present a discourse analysis of social work practitioners’ commentaries on undocumented immigrants that were collected from a survey of practicing social workers’ attitudes toward immigration and immigrants. Analyzing 198 open-ended comments, we explore the discursive mechanisms practitioners employ to construct undocumented immigrants, and their professional responsibilities toward them. These views are illustrative of the ways in which the profession determines inclusion and exclusion, writ large in national immigration policies and laws and played out in the arenas of social work and social services. Disparate views of practitioners highlight tensions in the profession's relationships to law and social policies as well as to its own ethics and identity.     

Correlates of Attitudes Toward Personal Aging in Older Assisted Living Residents

This study explored factors contributing to older adults’ self-perceptions about their own aging in assisted living (AL) communities. Data analysis was completed based on interviews with 150 older residents from 17 AL communities. Multiple regression analyses found that functional disability and hearing impairment negatively affected attitudes toward personal aging among AL residents, and satisfaction with social support positively influenced attitudes. Health perception mediated attitudes toward personal aging. Findings suggest the importance of social workers helping older AL residents recognize social support as a means of promoting their positive self-regard.