Comparison of Robust Estimators of Standard Deviation in Normal Distributions Within the Context of Quality Control

Pitman criterion is used in simulation to determine the “closer” estimator of the standard deviation among selected choices. The initial simulation utilizes a standard normal distribution from which samples are taken of specific sizes. Popular and commonly used estimators of standard deviation are compared with the known population standard deviation in this study. Closeness criterion is calculated for each comparison and sample size. A secondary simulation applies the findings to variables control charts, in order to verify the ability of each estimator to identify out-of-control conditions.     

Computing Probabilities of Type I Error and Type II Error of Sequential Bayesian Procedures for Testing One-Sided Hypotheses

In this article, it is shown how to compute, in an approximated way, probabilities of Type I error and Type II error of sequential Bayesian procedures for testing one-sided null hypotheses. First, some theoretical results are obtained, and then an algorithm is developed for applying these results. The prior predictive density plays a central role in this study.     

Construction of a Frailty Indicator with Partially Ordered Sets: A Multiple-Outcome Proposal Based on Administrative Healthcare Data

Social Indicators Research - Given the progressive aging of Italian and European populations, the number of cases with chronic diseases is steeply increasing. This calls for new strategies for...     

Assent-maximizing social choice

We take a decision theoretic approach to the classic social choice problem, using data on the frequency of choice problems to compute social choice functions. We define a family of social choice rules that depend on the population’s preferences and on the probability distribution over the sets of feasible alternatives that the society will face. Our methods generalize the well-known Kemeny Rule. In the Kemeny Rule, it is known a priori that the subset of feasible alternatives will be a pair. We define a distinct social choice function for each distribution over the feasible subsets. Our rules can be interpreted as distance minimization—selecting the order closest to the population’s preferences, using a metric on the orders that reflects the distribution over the possible feasible sets. The distance is the probability that two orders will disagree about the optimal choice from a randomly selected available set. We provide an algorithmic method to compute these metrics in the case where the probability of a given feasible set is a function only of its cardinality.     

A landscape with objects: private game reserves,game lodges and the ‘New Safari’

This paper investigates the proliferation of high‐end private game reserves in Africa as the manifestation of an emerging economic but also symbolic and emotional investment in the value of nature. Increasing concern for ‘the environment’ along with anxiety about the future of individual species has given the game reserve a special place in the contemporary global imagination. Through analysis of some of the ephemeral texts through which these fantasies and anxieties about nature are articulated – an advertisement, some publicity material and a design monograph – this paper explores a number of different objects which serve to mediate the relationship between the public and nature. Both the 4×4 whose increasing popularity seems to parallel that of the game reserve, and the carefully designed and decorated game lodges offer examples of the complex way in which the experience of nature needs to be mediated by objects in order to confirm nature as a site for the rediscovery of authenticity. Around the game lodge, I argue, there emerges a new discursive mode for articulating Africa, and South Africa’s relationship with the world, a novel aesthetic known as the ‘New Safari’. This design category goes beyond design to construct a moral and experiential fantasy in which conservation not as a practice but rather as an imagined value makes possible a disturbing reconceptualisation of the relation between the national and the global.     

Indigenous Knowledge in the Social Work Academy

This paper provides a model for including Indigenous knowledge in the social work academy. This model does not hinge on being sensitive to Aboriginal world views and open to including them in the academy, but on being sensitive to the ways Eurocentric world views dominate the academy and open to disrupting this dominance. Disruption is necessary because despite a commitment to diversity and inclusion, social work education continues to be taught from a Eurocentric perspective in a manner that perpetuates the colonization of Indigenous peoples.

The authors triangulate their interrogation of Eurocentrism from the vantage of their own social locations: Jacquie is a female Indigenous professor from the Haisla Nation of the upper part of Turtle Island (known as Canada to non‐Indigenous people) and Gary is a White male Canadian professor originally from London, England. Adopting a critical anti‐racist approach and drawing on Whiteness theory, Indigenous storytelling and the Medicine Wheel, the authors present a pedagogical framework that enables Indigenous knowledge to be included in the academy in ways that ensure that it is not colonized in the process.     

Involving Service Users in a Problem Based Model of Teaching and Learning

Since the introduction of the new degree in social work in the UK, programmes have been developing ways to involve service users, using differing models. This paper will explore how service users can enhance the inquiry based model of teaching and learning while at the same time emphasising the belief that process and content in teaching and learning cannot be separated. It will also show how this approach, by involving service users as consultants, creates expertise and can provide a ‘legitimate constituency’ and thus allow for meaningful participation of service users at all levels of social work education.     

Supporting Traditional African Mediators Project (STAMP) for Family Violence

Supporting Traditional African Mediators Project (STAMP) is a program that has been working with African/Australian community leaders to prevent family violence. This program has been carefully developed through building long‐term relationships, transparency and openness with an emphasis on navigating the intersection of cultures in order to enhance understanding and collaboration around family violence prevention. The training program has successfully engaged both men and women and enhanced participation, cross cultural learning and positive outcomes by creating an open and safe environment. The paper highlights the knowledge gained by participants and project workers and explores the challenges experienced by people who emigrate from other countries when responding to family conflict in an Australian context. It introduces the formation of a support group Marula that has added value and support to Traditional African Mediators in their work to address family violence within their communities.