Coordinating multi-location production and customer delivery

We study two parallel machine scheduling problems with equal processing time jobs and delivery times and costs. The jobs are processed on machines which are located at different sites, and delivered to a customer by a single vehicle. The first objective considered is minimizing the sum of total weighted completion time and total vehicle delivery costs. The second objective considered is minimizing the sum of total tardiness and total vehicle delivery costs. We develop several interesting properties of an optimal scheduling and delivery policy, and show that both problems can be solved by reduction to the Shortest-Path problem in a corresponding network. The overall computational effort of both algorithms is O(n m2+m+1) (where n and m are the number of jobs and the number of machines, respectively) by the application of the Directed Acyclic Graph (DAG) method. We also discuss several special cases for which the overall computational effort can be significantly reduced

Indicators of psychoses or psychoses as indicators: the relationship between Indigenous social disadvantage and serious mental illness

Objective: To explore the relationship between Indigenous social disadvantage and serious mental illness.\ud \ud Conclusions: Rapidly changing patterns of mental disorders in Indigenous populations indicate the importance of social determinants. Canadian research on Native American suicide has demonstrated a clear link between social control factors and one mental health issue – completed suicide – a finding with major social policy implications. This work has not been replicable in Australia, reflecting the particular political and social circumstances of Aboriginal and Torres Strait Islander populations. Recent research motivated by clinicians' observations of an increase in psychotic disorders in the Indigenous populations of Cape York and the Torres Strait has demonstrated that the prevalence is high and that there are within-population differences. Given similar exposure to social disadvantage, these findings raise the possibility of utilising Indigenous psychosis prevalence as a metric to inform a more nuanced understanding of the predictors of wider vulnerability and resilience at a setting level, and as a policy and service development lever

Koorlankga wer wiern: Indigenous young people and spirituality

The colonial enterprise has been instrumental in attempting to silence and destroy Indigenous expressions of spirituality. At the same time there has been much reliance upon Indigenous forms of knowing, Indigenous men and women of high degree, and the labor and guidance of young people. Today Indigenous spiritualities have been greatly impacted on by Christianity, western epistemology, and modern expressions of spirit. However, many Indigenous young people have been shaped by a renaissance of culture, language, and expressions of identity. There is also evidence that Indigenous young people are having an influence on the spiritual lives and practices of others through their involvement in the church, the school, cultural revival, language regeneration, sport, and the arts. This chapter will focus upon spirituality and the lives of Indigenous young people. It will include a background discussion of historical influences on tradition and culture. This will include an examination of the connection between spirituality, traditional Indigenous ontology, Christianity, and modern social and cultural forms. The chapter will also show that these two broad traditions have shaped the experience of spirituality for young people. In turn it will also explore how modern expressions and reconfigurations of Indigenous young people’s spirituality are also influencing and shaping the worlds of others