Validation of the 12 Item Short form Health Survey in a Sample from Region Central Jutland

In 2010 the Danish regions started a new program of public health surveillance in collaboration with the national and local health authorities using the short form health survey (SF-12) for measuring and reporting on health related quality of life among the Danish adult population. The instrument has not, however, been validated in a Danish setting. The aim of this study was to assess the reliability and validity of the physical component summary (PCS) and the mental component summary (MCS) score of the 12-item short form health survey (SF-12) in a sample from Central Denmark Region. A total of 26,397 persons above the age of 25 were included in the analyses. Reliability was assessed by Cronbach’s α. The validity was assessed using known-groups comparisons and convergent validity. The factor structure was investigated through exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). The Cronbach’s α showed high reliability with a score of 0.90 and 0.85 for PCS and MCS respectively. The SF-12 discriminated well with respect to gender, age, educational status and long term illness. Individual items correlated higher with own hypothesized scales than with other scales and summary measures corroborating the convergent validity. The EFA gave a two-factor structure. Irrespective of the chosen rotation method (varimax and oblimin) the items related to PCS loaded on one factor and the items related to MCS loaded on another factor. The factor structure was validated with acceptable model-fit values in CFA. The SF-12 instrument is a reliable and valid measure of health related quality of life among the population of Central Denmark Region.     

The Semiparametric Normal Variance-Mean Mixture Model

We study the normal variance-mean mixture model from a semiparametric point of view, i.e. we let the mixing distribution belong to a non-parametric family. The main results are consistency of the non-parametric maximum likelihood estimator and construction of an asymptotically normal and efficient estimator for the Euclidian part of the parameter. We study the model according to the theory outlined in the monograph by Bickel et al. (1993) and apply a general result (based on the theory of empirical processes) for semiparametric models from van der Vaart (1996) to prove asymptotic normality and efficiency of the proposed estimator.     

The importance of survival units for Norbert Elias's figurational perspective

In this paper, we argue that Norbert Elias's concept of survival unit is a distinctive part of the development of his figurational sociology and one of the most consistent contributions to relational thinking. The survival unit is a particular form of figuration which provides security and the material foundations for life such as food and shelter. Every human being is born into a survival unit. This unit is a relational concept which cannot be conceived outside a relationship with other survival units.
By introducing the concept of survival unit Elias overcomes one of the key problems in relational sociology: how to demarcate primary social relations. Elias argues that human societies from very early on have been divided into survival units. These survival units are demarcated and constituted in their relationship to other survival units. Consequently, their boundaries are generated in a confrontation with other survival units.
This relationship can be peaceful or conflict ridden but in the last resort it can end with violent confrontation. Only the survival unit with the ability to defend a domain of sovereignty will survive. This observation places Elias among the few sociologists with an understanding of the role of warfare in social relationships.     

The Economic Partnership Agreements: Rationale,Misperceptions and Non‐trade Aspects

The European Union and the African, Caribbean and Pacific (ACP) countries entered a new era in 2008. The Cotonou trade regime and the WTO waiver legitimising it have expired, and the long anticipated, and much debated, move to Economic Partnership Agreements (EPAs) has begun. This article explains the background and analyses the ‘alternatives’ to EPAs, in order to tackle common misperceptions. Moving on from what has been the focus of debates, namely, the reciprocal liberalisation required under WTO rules, it sheds some light on the non‐goods trade aspects of EPAs which, while integral to economic policy, are inherently hard to quantify and often skimmed over in existing studies or addressed in ideological terms.     

The Swedish Welfare State and the Emergence of Female Welfare State Occupations

The Swedish welfare state has, during the twentieth century, developed into the primary guarantor of health and social services as well as economic security. As the welfare state has developed, a new group of professions has emerged which can be described as welfare state professions. In this paper I will point out a few central aspects of how female‐dominated welfare state professions have emerged and developed within the framework of the Swedish welfare state's expansion. These ideas will then be demonstrated on two female‐dominated occupations, nurses and occupational therapists, which have developed in close association with the expansion of the welfare state. The results indicate that the emergence of a centrally planned welfare state and the occupational groups' organizational resources have been of crucial importance for the professional development of female‐dominated health and care occupations in Sweden. The welfare state has opened up new professional fields and created a stable labour market, which has provided good conditions for professional organizing. The state has also been quick to establish relationships with occupational groups whose professional competence has been deemed to be suited to the welfare political context. However, the state's interests in professional matters have often been in conflict with those of the professions themselves, regarding, for example, education, sub‐specialization and certification. One conclusion that can be drawn is that the Swedish welfare state has acted both as an engine and a brake regarding professional development and status.     

The importance of social circumstances for Swedish women's subjective wellbeing

The importance of social circumstances for middle-age women's general subjective wellbeing (SWB) was investigated in a representative sample of Swedish women, aged 43 (N = 369). The results showed non-existent to moderate relationships between a number of social circumstances variables and general SWB. The strongest relationship was found between marital status and global life satisfaction. Being off work because of illness and household income were the strongest predictors of negative affect. A moderate relationship was found between a cumulated social disadvantage index and SWB, indicating that extreme differences in this index were related to fairly large differences in SWB. In person-oriented analyses, social circumstances were compared between women with a typical profile of generalised low SWB and women with a typical profile of generalised above-average SWB. The results indicated stronger relationships between SWB and the cumulative disadvantage index and unemployment than was the case in the variable-oriented analyses. When personality factors were controlled for, they eliminated nearly all relationships between the social circumstances variables and SWB, except for those between global life satisfaction and marital status or unemployment.     

Organization theory: Where are you?

This paper seeks to summarize the present state of organization theory. It takes as its starting-point the work of early organization theorists and demonstrates that their work has been challenged in basically four different ways, i.e. regarding the view on (a) individuals in organizations, (b) the interaction among individuals in organizations, (c) the relationship between organizations and their environments and (d) the technology of organizations. The implications of these qualifications are discussed with reference to recent literature. These discussions led to the conclusion that the number of research questions have increased rather than decreased over the years. Thus, a unified organization theory may be less valid today than at the beginning of the century. This circumstance, however, it is argued, should not be considered a regression but rather a sign of increasing insight.     

A decision support methodology for strategic planning in maritime transportation

This paper presents a decision support methodology for strategic planning in tramp and industrial shipping. The proposed methodology combines simulation and optimization, where a Monte Carlo simulation framework is built around an optimization-based decision support system for short-term routing and scheduling. The simulation proceeds by considering a series of short-term routing and scheduling problems using a rolling horizon principle where information is revealed as time goes by. The approach is flexible in the sense that it can easily be configured to provide decision support for a wide range of strategic planning problems, such as fleet size and mix problems, analysis of long-term contracts and contract terms. The methodology is tested on a real case for a major Norwegian shipping company. The methodology provided valuable decision support on important strategic planning problems for the shipping company.