Delayed probabilistic risk attitude: a parametric approach

Theory and Decision - Experimental studies suggest that individuals exhibit more risk aversion in choices among prospects when the payment and resolution of uncertainty are immediate relative to...     

Quality of College Life (QCL) of Students: Further Validation of a Measure of Well-being

This paper reports a study designed to further validate a measure of quality of college life (QCL) of university students (Sirgy, Grzeskowiak, Rahtz, Soc Indic Res 80(2), 343–360, 2007). Two studies were conducted: a replication study and an extension study. The replication study involved surveys of 10 different college campuses in different countries. The results of the replication study provided additional nomological (predictive) validation support of the measure based on a theoretical model mapping out the antecedents and consequences of satisfaction with college life. With respect to the extension study, the focus was to further test the nomological validity of the QCL measure by arguing and empirically demonstrating that the consequence of QCL is life satisfaction. The extension study involved a survey of three college campuses in different countries. The results were also supportive of the nomological validity of the QCL measure.     

The footwear factory's assembly sector: opposing organizational structure and quality from the ergonomic work analysis

Data from 2006 indicated that Brazilian footwear leather industry was composed of approximately 9,488 formally registered establishments, considering the leather industry, footwear and leather goods. It was responsible for 211,582 people employed. However, in spite of having many employees, this kind of organization found several problems when analyzed from the ergonomics view. With this premise, then, in order to identify bottlenecks and other engineering problems that could cause discomfort and motivation lack among workers, leading directly to the loss of the product quality, the assembly sector of women's shoes factory was characterized.     

Teaching ergonomics to undergraduate physical therapy students: new methodologies and impressions of a Brazilian experience

Being ergonomics a scientific discipline based on knowledge of several areas, it is important to use education methodologies that promote critical thinking and reflective during the educational process. The article discusses the importance of interdisciplinarity in undergraduate courses in health care in particular in disciplines that address the ergonomics issue. The aspects of the introduction of new education methodologies, as well as case studies in undergraduate courses in Brazil, are discussed in this study. Based on the literature review conducted, some proposals for action in the interdisciplinary teaching of ergonomics in Physiotherapy courses are presented.     

Declining employment success of immigrant males in Sweden: Observed or unobserved characteristics?

Focusing on Nordic and Yugoslavian immigrant males, we study the determinants of employment success of natives and immigrants in Sweden. Furthermore, we investigate the reasons behind the arising gap in employment success between Swedes and immigrants from 1970 to 1990. In a decomposition analysis, we find that the main part of the decline in the employment probability of immigrants relative to Swedes over time is explained by a change in coefficients (unobserved characteristics) rather than a change in determinants (observed characteristics). Received: 22 June 1998/Accepted: 23 March 2000     

Personal resilience and identity capital among young people leaving care: enhancing identity formation and life chances through involvement in volunteering and social action

This study explored identity capital and personal resilience among care leavers and young people in care engaging in social activities through volunteering. Care leavers and young people in care are disadvantaged developmentally by lack of identity resources and an accelerated transition to independence. This study analysed material from semi-structured interviews to explore the Identity Capital Model and theories of individualisation, agentic identity development and resilience in explaining the identity resources of young people transitioning out of care. The analysis identified links between the exploration opportunities of volunteering with the development of agentic individualisation and enhanced identity capital. The findings indicate that developmental processes may be enhanced through supported and personalised volunteering opportunities to aid vulnerable young people transitioning out of care. Young people leaving care can make substantial gains particularly in social capital, personal resilience and identity capital. This study indicates that volunteering opportunities for this group of vulnerable young people may assist in compensating for the lack of resources often experienced by care leavers when transitioning to adulthood.     

A comparison of stepwise common singular spectrum analysis and horizontal multi-channel singular spectrum analysis

The problem of forecasting a time series by using information provided by a second time series is considered. Two multivariate extensions of Singular Spectrum Analysis (SSA) are compared in terms of forecast error: Horizontal Multi-channel SSA and Stepwise Common SSA. Different signal structures, defined in terms of trend, period, amplitude and phase, are investigated. In broad terms we find that neither Horizontal Multichannel SSA nor Stepwise Common SSA is best in all cases. Horizontal MSSA is outperformed particularly in cases where different trends are considered.     

采用脉冲火焰光度检测器进行丙烯中含硫化合物的气相色谱分析

在气相色谱分析中采用Agilent J&W低硫选择性色谱柱及硫特异性检测器如脉冲火焰光度检测器(PFPD),可将含硫化合物从基质中高效地分离出来,因而可对丙烯基质中痕量H2S,COS与CH3SH进行检测。将含硫化合物从基质中分离出来再检测,可避免基质引起的抑制效应并提高含硫化合物的响应。该色谱柱为活性含硫化合物如H2S提供了较好的响应,使含量低至20ppb的检测成为可能。尽管这是一种多孔层开管柱(PLOT),但它不会出现颗粒物质脱落现象,色谱图无锐峰。因此,与阀结合使用是安全的。