Return migration from Australia: a case study

"The study investigates the departure from Australia of former settlers who arrived during the 1980 calendar year. The 1980 settler arrival cohort [consists] of 75,167 visaed migrants.... The study has three main aims: (i) to analyse departures from Australia of the 1980 settler arrival cohort with a view to gauging the success of Australia's immigration program in retaining settlers; (ii) to examine the retention rates of settlers with respect to characteristics...including age, sex, marital status, country of last residence, and settler eligibility category; and (iii) to consider implications of the findings." Australia's present immigration policy is discussed, previous research on return migration from Australia is summarized, and a detailed analysis of the departure data is presented. "This study found that by August 1984, 12.4 per cent of non-refugee settlers who arrived in Australia during 1980 had departed permanently but that only 0.6 per cent of the 1980 refugee cohort had done so." These figures represent a decline in immigrant departure rates since the 1960s and early 1970s. Small differences in departure rates by place of birth, age, and marital status, which may have demographic consequences if sustained over time, are noted. (SUMMARY IN FRE AND SPA)     

Child health,breast-feeding,and survival in Malaysia: a random-effects logit approach

This study examines the possibility that estimation of the effect of breast-feeding on infant survival is affected by selection bias, in that children who are healthier at birth may be more likely to be breast-fed. Data are from the 1976 Malaysian Family Life Survey. "Ordinary logit models for breast-feeding and survival are estimated, and the results suggest that selection is indeed present. For example, children of higher birth weight appear to be more likely to be breast-fed and likely to survive. In addition, weight at birth and the duration of breast-feeding appear to be linked." Using birth weight as an indicator for the child's health, the authors conclude that "the direct influence of breast-feeding on survival remains of overwhelming importance even after corrections for selection bias are made."     

A comparison of quality and utilization problems in large and small group practices

Physicians practicing in large, multispecialty medical groups share an organizational culture that differs from that of physicians in small or independent practices. Since 1980, there has been a sharp increase in the size of multispecialty group practice organizations, in part because of increased efficiencies of large group practices. The greater number of physicians and support personnel in a large group practice also requires a relatively more sophisticated management structure. The efficiencies, conveniences, and management structure of a large group practice provide an optimal environment to practice medicine. However, a search of the literature found no data linking a large group practice environment to practice outcomes. The purpose of the study reported in this article was to determine if physicians in large practices have fewer quality and utilization problems than physicians in small or independent practices.     

Preference for realistic art predicts support for Brexit

Following the UK’s EU referendum in June 2016, there has been considerable interest from scholars in understanding the characteristics that differentiate Leave supporters from Remain supporters. Since Leave supporters score higher on conscientiousness but lower on neuroticism and openness, and given their general proclivity toward conservatism, we hypothesized that preference for realistic art would predict support for Brexit. Data on a large nationally representative sample of the British population were obtained, and preference for realistic art was measured using a four‐item binary choice test. Controlling for a range of personal characteristics, we found that respondents who preferred all four realistic paintings were 15–20 percentage points more likely to support Leave than those who preferred zero or one realistic paintings. This effect was comparable to the difference in support between those with a degree and those with no education, and was robust to controlling for the respondent’s party identity.     

Mangrove forests store high densities of carbon across the tropical urban landscape of Singapore

Tropical forested ecosystems provide multiple ecosystem services to rural and urban landscapes, with carbon storage gaining particular attention. Deforestation due to rural-urban transitions may lead to a reduction in carbon storage ability. Coastal mangrove forests are particularly at risk from deforestation due to their location in the rapidly urbanizing coastal zone, and the city state of Singapore is an extreme example, losing as much as 90 % of its original mangrove cover due to land reclamation and reservoir construction. Knowledge of mangrove ecosystem services may allow better conservation, restoration and incorporation of remaining mangrove patches into the urban landscape. Focusing on the regulating ecosystem service of carbon storage, mangrove carbon stocks have been estimated for Singapore using a combination of field and remote sensing techniques. Biomass carbon showed substantial spatial variation, with old, contiguous mangrove patches containing a higher density of biomass carbon than fragmented, river-fringing or restored mangroves. In total, national biomass carbon equated to 116,117.1 megagrams of carbon (Mg C), and a coarse estimate of the total carbon stock (including soil carbon) suggests that Singapore’s mangroves may store 450,571.7 Mg C. While lower than other regional estimates focused on natural, oceanic mangroves, this is a significant carbon stock for a disturbed, urban mangrove system, and may be equivalent to the average annual carbon emissions of 621,000 residents. This analysis, alongside a review of other urban forest studies, highlights the importance of forested ecosystems such as mangroves in providing a carbon storage ecosystem service to urban areas.     

The challenge of creating ‘alternative’ images of ageing: Lessons from a project with older women

This article analyses two participatory projects designed to engage older women in the creation of new imagery of old age. While it was hoped that this imagery would offer an ‘alternative’ to mainstream depictions or indeed offer older women a presence amidst the much noted absence of images of older women, the brief left it open to the professional photographers recruited to the project and to the participants themselves to direct the representations. In recent years, critical gerontologists have repeatedly called for artistic challenges to conventional ways of imaging old age. By working with two groups of older women, the intention was that ‘ordinary’ older women (non-celebrity, non-artist) could be included in that challenge and imagery created which would show the lives of older women honestly. In the case of the two projects described here, professional photographers were enlisted to give visual form to the women's views on ageing and their lives as older women and deliver ‘exhibition quality’ images. Important factors in determining the types of images produced included the artistic style and preferences of the photographers and their respective ages, both of which are explored here. In-depth analysis of some of the images produced shows that while they did not succumb to the usual ‘heroes of ageing’/‘bodily decline’ binary (Featherstone & Hepworth, 2005), they did not escape other dualistic categorisations. The images can be broadly viewed as nostalgic/melancholic or humorously carnivalesque. This finding is evidence of how difficult it is to create ‘alternative’ images of older women which defy established modes of categorisation.     

A Characterization of a Matric-Variate Exponential Distribution

Suppose S is a positive definite m x m random matrix and S> Ω denotes the event that S—Ω is positive definite, Ω being a constant positive definite matrix. Under very mild regularity conditions, we show that the constraint Pr(S>Ω₁+Ω₂ | S>Ω₂) = Pr(S>Ω₁) implies that S has a Wishart distribution on m+ 1 degrees of freedom.     

Old age rational suicide

In the societal debate surrounding voluntary euthanasia or physician‐assisted suicide, there is a concern that older people will be left exposed to any legislation, subject to either faint suggestion or outright coercion from familial or professional carers. Whilst it is critical to take account of older people's potential vulnerability to any current or proposed assisted suicide legislation, there is a parallel strand of research exploring another relationship which older people can have with this debate: one of activism. Sociological research has shown that older people make up the “rank and file” of those active within the right‐to‐die movement. One of the stated motivations of some older people requesting hastened death has been that, in spite of an absence of life‐threatening disease, they feel “tired of life” or that they have lived a “completed life” and feel ready to die. The notion of suicide for reasons of longevity and being tired of life are becoming increasingly significant given the fact of global ageing. This article brings together empirical and theoretical research on the phenomenon of old age rational suicide in order to develop an underexplored area in both the sociology of death and the sociology of ageing.