A Simulation Study of Some Biasing Parameters for the Ridge Type Estimation of Poisson Regression

This article proposes several estimators for estimating the ridge parameter k based on Poisson ridge regression (RR) model. These estimators have been evaluated by means of Monte Carlo simulations. As performance criteria, we have calculated the mean squared error (MSE), the mean value, and the standard deviation of k. The first criterion is commonly used, while the other two have never been used when analyzing Poisson RR. However, these performance criteria are very informative because, if several estimators have an equal estimated MSE, then those with low average value and standard deviation of k should be preferred. Based on the simulated results, we may recommend some biasing parameters that may be useful for the practitioners in the field of health, social, and physical sciences.     

A new nonlinear asymmetric cointegration approach using error correction models

In this article, two new powerful tests for cointegration are proposed. The general idea is based on an intuitively appealing extension of the traditional, rather restrictive cointegration concept. In this article, we allow for a nonlinear, but most importantly a different, asymmetric convergence process to account for negative and positive changes in our cointegration approach. Using Monte Carlo simulations we verify, that the estimated size of the first test depends on the unknown value of a signal-to-noise ratio q. However, our second test—which is based on the original ideas of Kanioura and Turner—is more successful and robust in the sense that it works in all of the different evaluated situations. Furthermore it is shown to be more powerful than the traditional residual based Enders and Siklos method. The new optimal test is also applied in an empirical example in order to test for potential nonlinear asymmetric price transmission effects on the Swedish power market. We find that there is a higher propensity for power retailers to rapidly and systematically increase their retail electricity prices subsequent to increases in Nordpool's wholesale prices, than there is for them to reduce their prices subsequent to a drop in wholesale spot prices.     

A new approach in vocational rehabilitation in Iceland: preliminary report

The lack of vocational rehabilitation in Iceland inspired the Janus Rehabilitation initiative in the year 2000. The team currently consists of two occupational therapists, a social worker, a physiotherapist, a psychologist, and a physician. Janus uses resources from local education establishments and is located at the Reykjavík Technical School. A client-centred approach is used, enabling a flexible rehabilitation timeframe. The aim is to help the client back to employment/education. Advantage is taken of the facilities of the school where integration between education and rehabilitation takes place. Forty individuals have been admitted, with a mean time from work of 2.9 years, (range: 0-11 years). Seventeen (43%) have returned to employment/education. Twenty-three of those entering the programme are still on invalidity pension. The Canadian Occupational Performance Measurement (COPM) shows improvement in occupational performance and satisfaction. The Icelandic Quality of Life measurement also shows improvement. The results have been promising. However, a larger group is needed in order to draw clear unequivocal conclusions.     

Unemployment and mental health among white‐collar workers – a question of work involvement and financial situation?

We examine whether it is a psychosocial or an economic need for employment that affects mental health among the unemployed. The relevance of both aspects are examined, concentrating on two measures of each dimension. Two perspectives of work involvement – the degree of connection to working life and the perceived employment commitment – and two perspectives on financial situation – economic security and perceived economic concern – have been analysed, using empirical data collected by means of a cross-sectional survey of 1297 unemployed white-collar workers from the public sector in Sweden. The degree of connection to working life was not significantly linked to the mental health of the unemployed, although there was a strong link between the perceived employment commitment and mental health among this group. The stronger the perceived employment commitment, the poorer the state of the person's mental health. Perceived economic concern was also tightly linked to mental health: the greater the economic concern, the poorer the mental health. Economic security also played – at least, partly – a moderate but significant role. The results provide strong support for the existence of both a psychosocial need and an economic need for employment. The analysis demonstrates that it is the perceived assessed measures of work involvement and financial situation that are linked to mental health.     

Emotional Empathy as Related to Mimicry Reactions at Different Levels of Information Processing

The hypotheses of this investigation were based on conceiving of facial mimicry reactions in face-to-face interactions as an early automatic component in the process of emotional empathy. Differences between individuals high and low in emotional empathy were investigated. The parameters compared were facial mimicry reactions, as represented by electromyographic (EMG) activity, when individuals were exposed to pictures of angry or happy faces. The present study distinguished between spontaneous facial reactions and facial expressions associated with more controlled or modulated emotions at different information processing levels, first at a preattentive level and then consecutively at more consciously controlled levels: 61 participants were exposed to pictures at three different exposure times (17, 56, and 2350 ms). A significant difference in facial mimicry reactions between high- and low-empathy participants emerged at short exposure times (56 ms), representing automatic, spontaneous reactions, with high-empathy participants showing a significant mimicking reaction. The low-empathy participants did not display mimicking at any exposure time. On the contrary, the low-empathy participants showed, in response to angry faces, a tendency to an elevated activation in the cheek region, which often is associated with smiling.     

Being there

This paper examines the use of the Internet as experienced by people with significant mobility/physical impairments who are accustomed to using computers. The study is based on interviews and focuses on computer usage in everyday action and interaction. In many cases, the possibilities that the computer and Internet offer have meant not only important improvements in quality of life, but first-time occurrences of great personal significance. The analysis is phenomenographic, resulting in main categories and subcategories, illustrated primarily through direct quotations. The three main categories are independence, communication, and learning.     

Against the De Minimis Principle

According to the class of de minimis decision principles, risks can be ignored (or at least treated very differently from other risks) if the risk is sufficiently small. In this article, we argue that a de minimis threshold has no place in a normative theory of decision making, because the application of the principle will either recommend ignoring risks that should not be ignored (e.g., the sure death of a person) or it cannot be used by ordinary bounded and information-constrained agents.     

Overfishing,social problems,and ecosocial sustainability in Senegalese fishing communities

ABSTRACT

This study explores living conditions of people in Senegalese fishing communities in relation to environmental change and unregulated fishing by foreign boats, weakening local opportunities and increasing forced migration of youth, creating problems for the future development of local fishery communities. It employs a postcolonial perspective and analyzes data collected through interviews with individuals from Senegalese fishing communities, social workers and relevant documents. The results show local reactions based on alliances between social workers and local community members to overfishing and the need for national and global structural changes. It is argued that EU’s fishing agreements with Senegalese government is one of the reasons behind youths’ forced migration to EU countries and that the betterment of the living conditions of fishery communities in Senegal requires not only already emerging alliances between social workers and local community members, but also national and global structural changes to protect Africa’s fishing communities and local fisheries.     

Drinking as a Feminine Practice: Post-Feminist images of women's drinking in Swedish women's magazines

Previous feminist analyses have pointed out how the news media demonize women who drink, labelling them as irresponsible, disturbing or behaving “like men.” Popular media such as women's magazines, however, construct alternative representations, that frame women's drinking encouragingly and as part of a successful and “modern” femininity. This study carries out an analysis of fashion reports from six Swedish women's magazines, published between 1984 and 2008. It concludes that despite the fact that women's magazines create an alternative to problematizing portrayals of women who drink, this does not necessarily make them unproblematic from a feminist point of view. While the prevalence of positive and encouraging images may be interpreted as indicating a change towards more gender equal or gender neutral depictions of drinking; this article argues instead that these images should be regarded as parts of a discourse that celebrates stereotypical femininity and reproduces gender difference. As such, the present article brings new perspectives to the complex discourses that give shape to ideas about gender and alcohol in general, and women's drinking in particular.