An Analytical Investigation of the Bullwhip Effect

The Bullwhip Effect is problematic: order variability increases as orders propagate along the supply chain. The fundamental differential delay equations for a retailer's inventory reacting to a surge in demand are solved exactly. Much of the rich and complex inventory behavior is determined by the replenishment delay. The analytical solutions agree with numerical integrations and previous control theory results. Managerially useful ordering strategies are proposed. Exact expressions are derived for the retailer's orders to the manufacturer, and the Bullwhip Effect arises naturally. The approach is quite general and applicable to a wide variety of supply chain problems.     

THE ROLE OF MARITAL STATUS IN HEALTH SERVICES EXPENDITURES FOR PSYCHIATRIC OUTPATTIENTS

This study tested the hypothesis that married psychiatric outpatients would have lower total health services expenditures than divorced or separated patients. Chart review of the 471 individuals attending an academic medical center outpatient psychiatric clinic during 1994 identified 131 married, 40 separated, and 93 divorced patients. Separated men had significantly higher average total charges ($16,890) than married ($5,279) or divorced ($5,539) men by one-way ANOVA (p < .05). The nonparametric Mann-Whitney test also showed that separated men had higher charges than married or divorced men. There were no differences between marital status groups for women.     

Distribution of Exposure Concentrations and Doses for Constituents of Environmental Tobacco Smoke

The ultimate goal of the research reported in this series of three articles is to derive distributions of doses of selected environmental tobacco smoke (ETS)-related chemicals for nonsmoking workers. This analysis uses data from the 16-City Study collected with personal monitors over the course of one workday in workplaces where smoking occurred. In this article, we describe distributions of ETS chemical concentrations and the characteristics of those distributions (e.g., whether the distribution was log normal for a given constituent) for the workplace exposure. Next, we present population parameters relevant for estimating dose distributions and the methods used for estimating those dose distributions. Finally, we derive distributions of doses of selected ETS-related constituents obtained in the workplace for people in smoking work environments. Estimating dose distributions provided information beyond the usual point estimate of dose and showed that the preponderance of individuals exposed to ETS in the workplace were exposed at the low end of the dose distribution curve. The results of this analysis include estimations of hourly maxima and time-weighted average (TWA) doses of nicotine from workplace exposures to ETS (extrapolated from 1 day to 1 week) and doses derived from modeled lung burdens of ultraviolet-absorbing particulate matter (UVPM) and solanesol resulting from workplace exposures to ETS (extrapolated from 1 day to 1 year).     

Ethical Comportment in Organizations: A Synthesis of The Feminist Ethic of Care and the Buddhist Ethic of Compassion

This article describes a mode of ethical behavior in organizations called ethical comportment that is the enactment of the principles of elements common to the feminist ethic of care and the Buddhist ethic of compassion. The paper outlines the main tenets of care and The Eightfold Path of Buddhism, a mode of practicing compassion, demonstrating the similarities in values and practices that embody what the author considers to be ethical comportment in organizations. This revised version was published online in July 2006 with corrections to the Cover Date.     

Using Mand Training to Establish an Echoic Repertoire in Young Children with Autism

The Analysis of Verbal Behavior - This research describes a method that initially establishes a mand repertoire as the first component in producing echoic and tact repertoires in young children...     

The social context of Welsh-medium bilingual education in anglicised areas

Principal component analysis of indicators from the 1991 Census was used to characterise the social context of school age Welsh speakers in South East Wales. The area had been largely anglicised by the Census of 1971, but the growth of Welsh-medium education was responsible for net gains in numbers of younger Welsh/English bilinguals. Doubts as to whether young people will remain active bilinguals after leaving school have been raised. The inter-relationships between figures for Welsh speaking in the Census and other social indicators were examined. Being categorised as a young Welsh speaker was found to cut across an economic advantage/disadvantage dimension, and so was a matter of life style rather than a by-product of parental choices unrelated to language resurgence. Probing life styles by means of interviews where Welsh-medium and English-medium schools could be matched on the economic advantage/disadvantage dimension showed that deciding for Welsh-medium education was embedded in authentic local life styles. Although networks of people at more local spatial scales were involved in Welsh-medium education, they were linked to wider scale networks establishing domains for Welsh language use in the public sector and local government.     

Social europe,social citizenship,and social services

The article begins by considering moves to establish Social Europe, alongside the European Unions single market, and the emphasis within the formulation of Social Europe on an employment-based model of social citizenship. This employment-based model is considered to be too limited for application to the social services. Accordingly, two other models are placed within the context of continuing European debate. These models are termed state clienthood and state-sponsored consumerism. The social democratic model of state cli-enthood is considered to be flawed by its neglect of the power exercised by the state over users of social services and by its lack of concern with individual needs. The potential of state-sponsored consumerism to open up questions concerning the rights of users of social services and responsiveness to their individual needs is explored and the conclusion is reached that, despite its inauspicious beginnings as part of the New Rights reform programme, this model has possibilities for enhancing social citizenship. Procedural rights offered by state-sponsored consumerism not only can extend social citizenship within existing social services provision but also can serve as a precursor to the wider participation of citizens in the social services, as the site of a continuing struggle around their rights.     

Effect of child protective services system factors on child maltreatment rereporting

This study examined how child protective services (CPS) systems respond to initial and subsequent reports in the context of child maltreatment rereporting and to what extent CPS system factors are associated with the risk of rereporting after controlling for abuse type and child and family factors. This study followed 67,243 families who were reported to the CPS agencies in seven counties in Florida for child abuse and neglect over a period of 5.4 years and found that 14,218 families had one or more child maltreatment rereports. Key findings include that CPS system factors were significantly different from initial report to subsequent reports. Five CPS system factors, reporting source, contact by CPS workers, investigative level at intake, postinvestigation services, and duration ofCPS involvement were significantly associated with the risk of child maltreatment rereporting. Multivariate analyses found that CPS system factors were substantially different for three categories ofrereporting, unsubstantiated rereports, substantiated rereports, and recurrence reports. Interpretations and implications for practice are discussed.