Alcohol education provided to opioid treatment program patients: results of a nationwide survey

Alcohol-related problems are especially common among opioid treatment program (OTP) patients, suggesting that educating OTP patients about alcohol and its harmful effects needs to be a priority in OTPs. Using data collected in interviews with a nationwide U.S. sample of OTP directors (N = 200) in 25 states, we identified factors that differentiate OTPs that provided this education to all OTP patients from those that did not. Findings indicate that these factors include (1) providing this education in a greater variety of ways, (2) having a larger percent of staff knowledgeable about alcohol-related issues, (3) having a director who views alcohol issues as a high priority, and (4) having a written OTP policy.     

Estimation of a multivariate normal covariance matrix under a certain structure

We consider the estimation of Σ of the p-dimensional normal distribution N_p (0, Σ) when Σ?=?θ₀ I_p ?+?θ₁ aa′, where a is an unknown p-dimensional normalized vector and θ₀?>?0, θ₁?≥?0 are also unknown. First, we derive the restricted maximum likelihood (REML) estimator. Second, we propose a new estimator, which dominates the REML estimator with respect to Stein's loss function. Finally, we carry out Monte Carlo simulation to investigate the magnitude of the new estimator's superiority.     

An asymptotic expansion of Wishart distribution when the population eigenvalues are infinitely dispersed

Takemura and Sheena [A. Takemura, Y. Sheena, Distribution of eigenvalues and eigenvectors of Wishart matrix when the population eigenvalues are infinitely dispersed and its application to minimax estimation of covariance matrix, J. Multivariate Anal. 94 (2005) 271–299] derived the asymptotic joint distribution of the eigenvalues and the eigenvectors of a Wishart matrix when the population eigenvalues become infinitely dispersed. They also showed necessary conditions for an estimator of the population covariance matrix to be tail minimax for typical loss functions by calculating the asymptotic risk of the estimator. In this paper, we further examine those distributions and risks by means of an asymptotic expansion. We obtain the asymptotic expansion of the distribution function of relevant elements of the sample eigenvalues and eigenvectors. We also derive the asymptotic expansion of the risk function of a scale and orthogonally equivariant estimator with respect to Stein’s loss. As an application, we prove non-minimaxity of Stein’s and Haff’s estimators, which has been an open problem for a long time.     

Answering the Call: Virtual Migration in Indian Call Centres

This paper explores the daily, psychic journeys Indian call center agents undergo as they ‘virtually migrate’ between India and the US. A thin cable that runs half way around the globe bridges the ‘here’ and the ‘there’, connecting agents to faraway customers in real time. The new time-space relations generated by this virtual contact create conditions for these workers to undergo a global ‘migration’ from India and to America, even as their bodies remain bounded within the national homeland. To accommodate the US American workday, Indian agents often work the nightshift and sleep during the day, leaving them little time for family, friends, and cultural events. This temporal arrangement displaces them from the daily rhythms of Indian life, generating a sense of loss, longing, and nostalgia for ‘India’. Further, while agents experience a sense of distance from India, they also experience a movement toward ‘America’. Agents’ accounts suggest a feeling of living between worlds, yet their movement is decoupled from physical migration.     

The Relationship Between Social Support and Subjective Well-Being Across Age

The relationships among types of social support and different facets of subjective well-being (i.e., life satisfaction, positive affect, and negative affect) were examined in a sample of 1,111 individuals between the ages of 18 and 95. Using structural equation modeling we found that life satisfaction was predicted by enacted and perceived support, positive affect was predicted by family embeddedness and provided support, and negative affect was predicted by perceived support. When personality variables were included in a subsequent model, the influence of the social support variables were generally reduced. Invariance analyses conducted across age groups indicated that there were no substantial differences in predictors of the different types of subjective well-being across age.     

'A Pair of Stout Shoes and an Umbrella': The Role of the Mental Welfare Officer in Delivering Community Care in East Anglia: 1946-1970

via e-mail: sherolph{at}hotmail.com Summary In this paper we describe an oral history research project whichexplored a little-known aspect of the history of social work:the history of mental welfare officers and their role in communitycare. We interviewed former MWOs and analysed both private andpublic documents to explore this history in East Anglia between1946 and 1970. In the paper we address three themes. In thefirst place, we argue that MWOs, as well as carrying out theirstatutory function in overseeing hospital admissions, had asignificant role in community care for people with learningdifficulties and psychiatric problems. They began to advocateon behalf of clients, often making a case for home support andthey supported parents' groups. Increasingly, they carried outcase-work and painstaking social work with families. In thesecond place, we explore the surprising finding that, amongMWOs, genericism was not as new a concept in 1970 as many writershave assumed. Finally, we analyse some gender issues that emergedfrom the research and the way they influenced attitudes to communitycare held by some MWOs. The paper looks at the gradual developmentof a profession from one with little consistent training, toone in which specialist education began to be seen as an importantaspect of the role of the MWO.