Guest Editorial Production Planning and Control in other Industries

This paper provides an excursion into various scheduling problems arising in the manufacturing environment and possible approaches that can be taken to solve them. It reviews the research in production scheduling from the perspective of designing and operating a production system and examines the research strategies adopted to find the solution of the practical problems. This review is in the form of the paradigms that evolved during the twentieth century and shows the transition in theory and practice of each paradigm. It covers the fundamental frameworks of scheduling theory, outlining various approaches that can be taken to solve (optimally or approximately) such problems, and the difficulties arising in their practical use. Subsequently, an iterative scheduling process is suggested as an extension of existing paradigms to solve practical production scheduling problems and to bridge the gap between theory and practice in production scheduling and control.     

Estimating the Relative Success of Local Authorities at Labour-Market Integration of Immigrants

We propose a method for estimating indicators of the success of local authorities at integrating immigrants in the labour-market. The proportion of time in employment of individuals is used to measure labour-market integration, and we correct for differences in characteristics of immigrants and local labour markets using a two-limit Tobit model. This method is applied to a large administrative micro dataset which contains information on all immigrants in Denmark. We compare the estimated indicators of integration to corresponding uncorrected measures, and conclude that the corrections have a significant effect on the ranking of local authorities.     

Patterns of matching and initiation: Touch behavior and touch avoidance across romantic relationship stages

This study explores the similarity of touch behavior and touch attitudes among dating and married couples. Touch behavior showed a strong matching effect for seriously dating and married couples. Z-tests revealed that correlations between relational partners were significantly stronger for marrieds than for serious or casual daters. Results for attitudes concerning touch showed a statistically significant but weak relationship between dyadic partners though the correlation strengthened in closer relationships. As was the case in previous studies, results showed that women reported less positive attitudes toward opposite-sex touch than men. A linear contrast in proportions demonstrated that men initiated touch significantly more in casual romantic relationships, but women initiated touch more in married relationships. Together, these data suggest that patterns of matching may vary as a function of relationship stage, while patterns of touch initiation may vary as a function of both relationship stage and sex.She will be at Pennsylvania State University in the Fall.An earlier version of this paper was presented at the 1991 meeting of the Western States Communication Association, Phoenix, AZ. The authors thank Johanna Bailey, Brigitte Bellocq, Trish Brehault, Shaun Cantor, Ronan Collver, Vico Guerrero, Lisa Kaplan, Erika Nelson, and Dan Riley for assistance in data collection and entry.     

Circular Questioning and Shifting Relationships

This article is a contribution to the necessary development of process evaluation in family therapy. A videotaped case, consisting of six sessions, is reviewed and the changes in the various family relationships are described. Attempts are made to look for correspondences between circular questioning in one of the sessions and shifts in relationships.     

Risk Assessment for Invasive Species

Although estimates vary, there is a broad agreement that invasive species impose major costs on the U.S. economy, as well as posing risks to nonmarket environmental goods and services and to public health. The domestic effort to manage risks associated with invasive species is coordinated by the National Invasive Species Council (NISC), which is charged with developing a science-based process to evaluate risks associated with the introduction and spread of invasive species. Various international agreements have also elevated invasive species issues onto the international policy agenda. The World Trade Organization (WTO) Sanitary and Phytosanitary (SPS) Agreement establishes rights and obligations to adhere to the discipline of scientific risk assessment to ensure that SPS measures are applied only to the extent required to protect human, animal, and plant health, and do not constitute arbitrary or unjustifiable technical barriers to trade. Currently, however, the field of risk assessment for invasive species is in its infancy. Therefore, there is a pressing need to formulate scientifically sound methods and approaches in this emerging field, while acknowledging that the demand for situation-specific empirical evidence is likely to persistently outstrip supply. To begin addressing this need, the Society for Risk Analysis Ecological Risk Assessment Specialty Group and the Ecological Society of America Theoretical Ecology Section convened a joint workshop to provide independent scientific input into the formulation of methods and processes for risk assessment of invasive species to ensure that the analytic processes used domestically and internationally will be firmly rooted in sound scientific principles.     

Relationship,Language and Pre-Understanding in the Reflecting Processes

This article discusses whether the concepts ‘relationship’, ‘expressing oneself’ and ‘pre-understanding’ might be better starting points to describe and understand ‘the therapeutic process’ than the traditional concepts ‘theory’ and ‘method’. The discussion has emerged from participation in, and will itself clarify, theso-called “reflecting processes”.     

Opposite sex touch avoidance: A national replication and extension

Virtually all previous research on touch avoidance was conducted in the Northeast region of the United States (U.S.). The present study replicated and extended Andersen and Leibowitz' (1978) research on touch avoidance by testing hypotheses for nearly 4,000 subjects at 40 universities from all socio-cultural regions of the United States. Results confirmed previous research, with the pattern of results at each of 40 universities showing considerable consistency. Opposite sex touch avoidance was higher for females than males, was positively related to communication apprehension, and was negatively related to verbal predispositions to communicate, open communicator style, and self-esteem. Some regional variations were uncovered, but they failed to correspond to political or cultural taxonomies of U.S. regions. Ideas for future research on regional patterns of communication and on touch avoidance are discussed.We would also like to thank Stanley Jones (University of Colorado) for his helpful comments to an earlier version of this paper.     

Global QUALITY OF LIFE (QOL), health and ability are primarily determined by our consciousness. Research findings from Denmark 1991–2004

Objective: To explain the global quality of life (QOL) from 2000 indicators representing all aspects of life. Design and setting: Two cross sectional population studies, one prospective cohort study and one retrospective cohort study. Participants: (1) Representative sample of 2500 Danes (18–88 years), (2) 7222 members of the Copenhagen Perinatal Birth Cohort 1959–1961 (31–33 years), (3) 9.006 mothers and their 8820 children born in Copenhagen 1959–1961, (4) 746 Danes (55–66 years). Main outcome measures: Global QOL measured by SEQOL (self evaluation of QOL) containing eight global QOL measures: Well-being, life-satisfaction, happiness, fulfilment of needs, experience of temporal and spatial domains, expression of lifes potentials and objective factors. Results: 2000 associations; strongest between QOL and health, ability, the personal philosophy of life, the relationships to oneself, the partner and friends; weakest between QOL and 1000 early life factors, 1000 life events and 100 objective factors like income. Conclusions: Quality of life is associated with personal health and attitude towards life, rather than objective factors, life style, or life events. We conclude that QOL can be developed independently and thus be used as medicine.