Diffusive nested sampling

We introduce a general Monte Carlo method based on Nested Sampling (NS), for sampling complex probability distributions and estimating the normalising constant. The method uses one or more particles, which explore a mixture of nested probability distributions, each successive distribution occupying ∼e ⁻¹ times the enclosed prior mass of the previous distribution. While NS technically requires independent generation of particles, Markov Chain Monte Carlo (MCMC) exploration fits naturally into this technique. We illustrate the new method on a test problem and find that it can achieve four times the accuracy of classic MCMC-based Nested Sampling, for the same computational effort; equivalent to a factor of 16 speedup. An additional benefit is that more samples and a more accurate evidence value can be obtained simply by continuing the run for longer, as in standard MCMC.     

Invisible or Mainstream? Disability in Surveys and Censuses in Low- and Middle-Income Countries

Social Indicators Research - This paper examines to what extent household surveys and censuses in low- and middle-income countries include disability questions and the types of questions under use....     

Roadmap to recovery: Reporting on a research taskforce supporting Indigenous responses to COVID‐19 in Australia

In April 2020 a Group of Eight Taskforce was convened, consisting of over 100 researchers, to provide independent, research‐based recommendations to the Commonwealth Government on a “Roadmap to Recovery” from COVID‐19. The report covered issues ranging from pandemic control and relaxation of social distancing measures, to well‐being and special considerations for vulnerable populations. Our work focused on the critical needs of Aboriginal and Torres Strait Islander communities; this paper presents an overview of our recommendations to the Roadmap report. In addressing the global challenges posed by pandemics for citizens around the world, Indigenous people are recognised as highly vulnerable. At the time of writing Australia's First Nations Peoples have been largely spared from COVID‐19 in comparison to other Indigenous populations globally. Our recommendations emphasise self‐determination and equitable needs‐based funding to support Indigenous communities to recover from COVID‐19, addressing persistent overcrowded housing, and a focus on workforce, especially for regional and remote communities. These latter two issues have been highlighted as major issues of risk for Indigenous communities in Australia It remains to be seen how governments across Australia take up these recommendations to support Indigenous peoples' health and healing journey through yet another, potentially catastrophic, health crisis.     

The Singapore state's response to migration

Migration trends in Singapore are traced since 1819. Immigration has been encouraged to advance economic development. Local and international factors fuel migration to Singapore. Singapore depends upon foreign labor. Population growth has been mainly due to migration from China, India, Malaysia, and countries surrounding Singapore. Independence in 1965 led to policies aimed at controlling high population growth. Policies became pronatalist after 1987. Foreigners in 1998 were over 18% of the total population, which was six times the number in 1970. About 2000 Singaporeans per year emigrated during the 1990s. Singapore is encouraging overseas industrial development. In 1997, the Prime Minister called for recruitment of foreign talent in order to meet the challenges of an increasingly globalized world, low fertility, and an aging society. Economic planners recommend short-term migration of unskilled foreign workers who would be a revolving pool to fill jobs natives do not want. Singapore is promoting arts and culture in order to keep people in Singapore. The government has issued assurances that natives will have first priority on jobs, education, and training. Singapore's ability to absorb workers will depend upon its economic performance.     

A narrowing gap? Trends in the childlessness of professional women in Australia 1986–2006

This paper examines whether the gap in fertility between women with higher education and in professional occupations and other women has narrowed or widened over time in Australia. Using data from the Australian Census of Population and Housing 1986, 1996 and 2006, the paper focuses on levels of childlessness. Both working women (using occupational categories) and all women (using educational attainment) aged between 20 and 44 were examined. Focusing particularly on women working in, or qualified for, some selected high-prestige professions (doctors, lawyers, dentists and vets), as well as on women with other tertiary qualifications and working in other professional or managerial occupations, the findings suggest that, between 1986 and 2006, childlessness has grown at a slower rate for women with tertiary education than for all women, although women with tertiary education continue to have the highest proportion of childlessness. Our findings for working women were similar, with women working in selected prestigious occupations having the highest rates of childlessness of all working women, but with this growing at a slower rate than was the case overall.     

The Relationship Between Adolescents’ Perceived Parental Involvement,Self-Efficacy Beliefs,and Subjective Well-Being: A Multiple Mediator Model

The aim of this study was to examine the mediation roles of academic self-efficacy, social self-efficacy, and emotional self-efficacy on the relationships between parental involvement (i.e., paternal involvement and maternal involvement) and subjective well-being (i.e., positive affect, negative affect, and life satisfaction) in Malaysian adolescents. Participants were 802 Malaysian high school students from 14 public schools, with an age range of 15–17 years. Results of a multiple mediator model indicated that academic self-efficacy and social self-efficacy were unique mediators in the relationships between parental involvement (both paternal involvement and maternal involvement) and adolescent positive affect. Besides, academic self-efficacy was found to be the only unique mediator in the relationships between parental involvement and adolescent life satisfaction. Emotional self-efficacy did not uniquely mediate the relationships between parental involvement and adolescent positive affect and life satisfaction. None of the proposed mediators uniquely mediated the relationships between parental involvement and adolescent negative affect. This study suggests that paternal involvement is just as crucial to adolescent positive development as maternal involvement. In addition, this study also extends our insight into the specific roles of academic, social, and emotional self-efficacy in the relationship between parental involvement and the components of subjective well-being among adolescents.     

外语能力磨蚀的性别差异初探

对300余名大学生进行了英语阅读和听力测试,并从中随机抽取男女生各50名进行了写作测试,得出如下结论:(1)外语磨蚀程度存在明显的性别差异;(2)男女生在深度阅读、短对话听力以及段落听力方面的磨蚀差异不显著;(3)女生在快速阅读能力方面的磨蚀程度明显超过男生;(4)女生写作能力在切题性、连贯性以及清楚性方面的磨蚀程度显著大于男生,而在语言的正确性方面的磨蚀没有明显超过男生.