Towards a socio-oecotechnology

The paper will attempt to demonstrate that within the broad ambit of the socio-technical model there is scope for development and for a degree of innovation. Two aspects of the model will be progressed and to some extent integrated. Firstly, I will argue that the joint optimisation (JtO) concept has not been elaborated and emphasised as much as it deserves and it needs to be sharply differentiated from the widely used notion of maximisation. Secondly, using JtO, I will extend the two system socio-technical model to a troika model by including the impact of technology on the oecological environment.¹ To obtain the best overall results, JtO has to be achieved between three systems: the social, the technical and the oecological. In this way, the extended model will engage with the public’s rapidly growing awareness of environmental hazards for which it frequently blames technologies. This extension also raises the socio-technical model from the micro- to the meso- and macro-level which was always the intention of the early pioneers. These theoretical developments will be treated heuristically and briefly illustrated by two case examples from recent research.     

Optimal Allocation of Observations for Inference on k Ordered Normal Population Means

The optimal allocation of observations when there is a natural ordering in the k normal population means is discussed. It is shown that the design which minimizes the total mean square error of the maximum likelihood estimators in the null case allocates half the observations to each of the two extreme populations. The design is obviously optimal for testing the homogeneity of means against the simple ordered alternative. It is, however, hardly acceptable for the estimation in the nonnull case. It is, therefore, shown that the observations could be allocated to the non-extreme populations according to weights which are proportional to the absolute values of the Abelson and Tukey scores at the same time keeping the minimum local power for testing the simple ordered alternative to be maximal. The design gives also the maximum minimum power, not local, for the alternative in the class of linear tests. It, of course, suffers from a small loss of efficiency for the estimation under the null case but is much better under the nonnull case than the extreme design which allocates half the observations to each of the two extreme populations. Some numerical comparisons of the mean square errors are given.     

Healthy Bodies Versus Diseased Bodies: Romance as a Trope of Social Order in Kenyan HIV/AIDS Fiction

Abstract

This paper looks at how romantic discourses have been appropriated and employed as avenues for imagining and suggesting a particular kind of social order in the context of HIV/AIDS in Kenya. Most romance stories can be seen as dealing with emotions but in the texts discussed here, the writers' main focus is on the bodies of the characters. It is those people who carry healthy bodies who eventually succeed in their romantic pursuits while the ill experience failed romance. Individuals who are HIV-positive are represented as “polluting” the social order while those who are HIV-negative are seen as upholding the social order by maintaining a “clean” and healthy nation-state. The paper proposes that romantic relationships are used by the writers selected as strategies of ordering and selecting the healthy from the diseased, consequently proposing some form of containment and maintenance of social order. However, it has to be noted that this representation is framed within ideas that stereotype people as HIV-positive and HIV-negative. In addition, I argue that this ideology can be read as conservative and entrenching certain traditional notions of romance that have come to be associated with control, discipline and therefore setting the limits of sex and sexuality in society.     

The design of experiments for correlated error structures: Layout and robustness

Observations with correlated error structures are sometimes unavoidable. Appropriate designs and analyses are reviewed for such situations. Serious problems can occur if conventional designs and analyses are used when correlated errors and layout are ignored or when the error structure is not known. Robust designs are discussed which guard against these problems.     

Power sharing at senior management levels

The paper presents research findings on decision making and differences in skill perception between 55 dyads of German managers of large organizations. These findings are related to research on carefully matched samples in the U.S. and U.K. The data, while still confined to two variables (two vertical and one horizontal method of measuring power sharing, and two ways of measuring perceptual differences between closely related decision makers), confirm the validity of a contingency model of managerial decision making and power sharing.     

Going beyond vocational rehabilitation as a training of skills: return-to-work as an identity issue

In western welfare states, labour participation is increasingly considered a vital aspect of taking part in society. Vocational rehabilitation programmes are intended to support people in the process of returning to work. These programmes pay much attention to the skills that clients need to develop in order to return to work. We argue, however, that vocational rehabilitation is more than the acquirement of skills, and that further attention should be paid to clients’ ‘identity work’ processes. Based on 45 life-stories, we present an analysis of the identity work expressed by people with a work disability in the Netherlands. We describe ‘separative’, ‘integrative’, and ‘pending’ processes of identity work. The presented typology can help vocational rehabilitation professionals become more sensitive to clients’ processes, and supports more inclusive vocational rehabilitation.