Supply Chain Scheduling: Distribution Systems

We study conflict and cooperation issues arising in a supply chain where a manufacturer makes products which are shipped to customers by a distributor. The manufacturer and the distributor each has an ideal schedule, determined by cost and capacity considerations. However, these two schedules are in general not well coordinated, which leads to poor overall performance. In this context, we study two practical problems. In both problems, the manufacturer focuses on minimizing unproductive time. The distributor minimizes customer cost measures in the first problem and minimizes inventory holding cost in the second problem. We first evaluate each party's conflict, which is the relative increase in cost that results from using the other party's optimal schedule. Since this conflict is often significant, we consider several practical scenarios about the level of cooperation between the manufacturer and the distributor. These scenarios define various scheduling problems for the manufacturer, the distributor, and the overall system. For each of these scheduling problems, we provide an algorithm. We demonstrate that the cost saving provided by cooperation between the decision makers is usually significant. Finally, we discuss the implications of our work for how manufacturers and distributors negotiate, coordinate, and implement their supply chain schedules in practice.     

The Impact of In-service Training within Social Services

Summary In-service training within social service agencies is recognizedas a key means through which staff are provided with the necessaryknowledge and skills to improve overall agency performance andachieve the objectives of social policy. Furthermore, reportsof training expenditure within social services departments inthe UK suggest increasing amounts of monies are invested insuch activity in order to meet the changing demands placed onsocial care and greater expectations for higher standards inservice delivery. Yet to what extent is the faith placed inmuch of this training by social service agencies actually justified?In short, how much do we know about the actual impact of in-servicetraining within social service organizations in terms of itachieving the aims set by policy makers? This article attemptsto answer this question in order to assist in the developmentof a far more empirically based framework for understandingtraining processes within social service agencies. A reviewof the literature for studies published between 1974 and 1997detailing an evaluation of in-service training programmes withinsocial service agencies identified only 20 such studies. Problemsassociated with both the evaluative criteria utilized and theresearch methodologies employed in these studies meant thatin many instances conclusions regarding the actual impact oftraining could only be tentatively judged. As a result, an analysisof these studies found that although training may have an impacton trainees in terms of satisfaction or knowledge gain, resultsregarding impact on behaviour are far more inconclusive. Inaddition it is not at all certain that such training will necessarilyresult in changes in performance back in the workplace. Thefindings from the review suggest far more research is requiredof sufficient rigour to underpin our knowledge in this importantarea.     

Emotionally Focused Couple Therapy for Parents Raising a Child with an Autism Spectrum Disorder: A Pilot Study

Many couples raising children diagnosed with an Autism Spectrum Disorder (ASD) are often resilient in confronting unique parental demands, while others experience greater risk for relational distress. Research has shown that Emotionally Focused Couple Therapy (EFT) is efficacious with couples raising chronically ill children and relevant to the relational demands of parents of children diagnosed with an ASD. This pilot study tested the effectiveness of EFT with seven couples presenting with moderate to severe distress, who were also parents of a child diagnosed with an ASD. Results demonstrated significant decreases in marital distress at posttreatment and 6‐month follow‐up. The study also identified several unique themes associated with couple distress and the parenting experiences of this population.     

Emotion Socialization in the Context of Risk and Psychopathology: Mother and Father Socialization of Anger and Sadness in Adolescents with Depressive Disorder

This study examined parental emotion socialization processes associated with adolescent unipolar depressive disorder. Adolescent participants (N = 107; 42 boys) were selected either to meet criteria for current unipolar depressive disorder or to be psychologically healthy as defined by no lifetime history of psychopathology or mental health treatment and low levels of current depressive symptomatology. A multi‐source/method measurement strategy was used to assess mothers’ and fathers’ responses to adolescent sad and angry emotion. Each parent and adolescent completed questionnaire measures of parental emotion socialization behavior, and participated in meta‐emotion interviews and parent‐adolescent interactions. As hypothesized, parents of adolescents with depressive disorder engaged in fewer supportive responses and more unsupportive responses overall relative to parents of non‐depressed adolescents. Between group differences were more pronounced for families of boys, and for fathers relative to mothers. The findings indicate that parent emotion socialization is associated with adolescent depression and highlight the importance of including fathers in studies of emotion socialization, especially as it relates to depression.     

Moral accounting as field foundation in an early modern empire: the English East India Company in the late eighteenth century

Field analysis and the relational approach to historical social-scientific explanation of which it is an instance – helps illuminate the administrative dynamics of empires. While most studies of imperial dynamics emphasize the ‘high imperialism’ of the nineteenth and twentieth centuries, this article extends field analysis to a crucial case from the second half of the eighteenth century: the English East India Company's transition from a (largely) merchant trading company to a territorial power. In this disordered space of administration, officials struggling with one another for metropolitan recognition provided moral accounts of themselves which, on the one hand, explained their behaviour in terms drawn from abstract, purportedly universal social spaces, and, on the other hand, claimed credibility through a personal ‘interest in disinterest’. I argue that these moral accounts helped delimit the boundaries of and shape the dynamics within a distinctively imperial administrative field. To analyse this transformation, I suggest a synthesis of three varieties of relational analysis: Bourdieu's field theory, Fligstein and McAdam's analysis of strategic action fields, and Padgett and Powell's work on network folding and robust action.     

Incumbent ideology,district ideology,and candidate entry in U.S. congressional elections, 1954–2008

This paper investigates the role of incumbent ideology on quality candidate entry in U.S. congressional elections. Looking at district ideology, the analysis shows that members of the House and Senate face different ideological incentives in terms of opponent quality. For officials from highly ideological districts, greater ideological extremity is advantageous as it discourages strong opponents. For members from cross pressured districts, however, greater extremity may increase the likelihood of facing a strong opponent. Although the magnitude of these findings vary by party, they illustrate that incumbents face diverging ideological motivations in terms of discouraging strong challengers based on the ideology of their district.     

Vitamin D and the postmenopausal population

Vitamin D, a hormone critical to the body's maintenance of serum calcium and phosphorus concentrations, is currently the subject of much scientific interest. Low levels of vitamin D have been observed in many populations and epidemiological studies have suggested a link between this biochemical state and a range of diseases, such as cancer, diabetes and multiple sclerosis. While the consequence of vitamin D deficiency is well documented for bone (rickets and osteomalacia), with mixed findings relating to falls and fractures, a causal link between vitamin D deficiency and these wider health outcomes has not been established. If these relationships were found to be causal, the morbidity and mortality resulting from low levels of vitamin D could be substantial; the current evidence base, however, most robustly supports the assessment of serum 25(OH)-vitamin D in the context of specific symptoms, low bone mineral density or biochemical abnormalities, rather than as an entity to treat in its own right or as the basis for a population-wide screening programme.     

Joint physical custody and neighborhood friendships in middle childhood

Almost half of first marriages end in divorce, which in turn may produce joint physical custody arrangements. Seen by many states to be in the best interest of the child, joint physical custody is increasingly common. Yet much is unknown about its consequences for children. This article considers how joint physical custody arrangements affect children’s neighborhood friendships, an important component of child well-being because of their contributions to social and cognitive development. Thirteen parents and 17 children (aged 5–11) in 10 families, selected via convenience and snowball sampling, participated in semistructured interviews. The findings suggest that joint physical custody arrangements do not imperil children’s neighborhood friendships; indeed, most children and parents interviewed voiced contentment in this area.