The Maximally Exposed Individual—Comparison of Maximum Likelihood Estimation of High Quantiles to an Extreme Value Estimate

The dose to human and nonhuman individuals inflicted by anthropogenic radiation is an important issue in international and domestic policy. The current paradigm for nonhuman populations asserts that if the dose to the maximally exposed individuals in a population is below a certain criterion (e.g., <10 mGy d(-1)) then the population is adequately protected. Currently, there is no consensus in the regulatory community as to the best statistical approach. Statistics, currently considered, include the maximum likelihood estimator for the 95th percentile of the sample mean and the sample maximum. Recently, the investigators have proposed the use of the maximum likelihood estimate of a very high quantile as an estimate of dose to the maximally exposed individual. In this study, we compare all of the above-mentioned statistics to an estimate based on extreme value theory. To determine and compare the bias and variance of these statistics, we use Monte Carlo simulation techniques, in a procedure similar to a parametric bootstrap. Our results show that a statistic based on extreme value theory has the least bias of those considered here, but requires reliable estimates of the population size. We recommend establishing the criterion based on what would be considered acceptable if only a small percentage of the population exceeded the limit, and hence recommend using the maximum likelihood estimator of a high quantile in the case that reliable estimates of the population size are not available.     

Families, orphans and children under stress in Zimbabwe

This paper evaluates a programme called FOCUS in Zimbabwe: Families, Orphans, and Children under Stress. The programme was initiated in 1993 and works with seven community groups, providing support to around 6500 children in 2000 households. The programme succeeds through committed community volunteers, who made over 93,000 visits to households in 1999. Communities are mobilised by building on existing practices, using natural entry points, and careful selection of local volunteers and supervisors. There is good community ownership, extremely low volunteer turnover, and reporting systems verify that aims and objectives are met. The programme maintains good ethics, addresses a range of children's rights, and is sustainable through a mixture of donor funds, FACT (sponsoring organisation) support and community support. Issues of concern include better recognition of psycho-social needs, prevention and protection from sexual abuse, reducing stigma and discrimination, increasing child-centred approaches and participation, and reducing gender imbalance among volunteers.     

Yarning about gambling in Indigenous communities: an Aboriginal and Islander Mental Health Initiative

Gambling impacts upon the health, wellbeing and finances of many people throughout Australia. This study aimed to explore the socioeconomic and cultural factors linked with gambling in urban and remote Indigenous settings in the Northern Territory to inform the development of a gambling public health strategy. The Aboriginal and Islander Mental Health Initiative developed a semi‐structured questionnaire with Aboriginal partner organisations following consultation. Indigenous consumers of substance use treatment facilities participated in focus group discussions and key informant interviews were conducted with nine service providers at two time points, a year apart. Participants described key strengths in community as family, health and culture, while key worries included substance misuse, health concerns and family disharmony. Regulated gambling and card playing were also identified as important community worries. Financial and family concerns and addictive behaviour were seen as negative consequences of gambling. There was increasing concern linked with card playing and electronic gaming machines and an increased call for awareness campaigns, support from government for change and greater regulation. The findings of this study provide the most recent insight into attitudes, behaviours and consequences linked with Indigenous gambling in the Northern Territory.     

Psychosocial correlates of disordered eating in female collegiate athletes: validation of the ATHLETE questionnaire

Female athletes may be at greater risk for disordered eating than their nonathletic peers, but the psychological antecedents of this dysfunctional behavior in athletes have yet to be elucidated. The objective of this study was to develop an athletics-oriented measure of psychological predictors of disordered eating and to test its initial reliability and validity. Female athletes from 3 National Collegiate Athletics Association (NCAA) Division I universities completed the ATHLETE, a written questionnaire designed to assess psychosocial factors associated with disordered eating in athletes. Five distinct and internally consistent factors (Drive for Thinness and Performance, Social Pressure on Eating, Performance Perfectionism, Social Pressure on Body Shape, and Team Trust) were positively associated with and predictive of disordered eating behaviors in female athletes. The ATHLETE is a reliable and valid measure of psychological predictors of disordered eating in athletics and will be useful in studying the etiology of disordered eating in female athletes.     

Religious and Spiritual Dimensions of the Vietnamese Dementia Caregiving Experience

This paper focuses on the role of religion and spirituality in dementia caregiving among Vietnamese refugee families. In-depth qualitative interviews were conducted with nine Vietnamese caregivers of persons with dementia, then tape-recorded, transcribed, and analyzed for emergent themes. Caregivers related their spirituality/religion to three aspects of caregiving: (1) their own suffering, (2) their motivations for providing care, and (3) their understanding of the nature of the illness. Key terms or idioms were used to articulate spiritual/religious dimensions of the caregivers' experience, which included sacrifice, compassion, karma, blessings, grace and peace of mind. In their narratives, the caregivers often combined multiple strands of different religions and/or spiritualities: Animism, Buddhism, Taoism, Confucianism and Catholicism. Case studies are presented to illustrate the relationship between religion/spirituality and the domains of caregiving. These findings have relevance for psychotherapeutic interventions with ethnically diverse populations.