Estimation of the linear mixed integrated Ornstein–Uhlenbeck model

The linear mixed model with an added integrated Ornstein–Uhlenbeck (IOU) process (linear mixed IOU model) allows for serial correlation and estimation of the degree of derivative tracking. It is rarely used, partly due to the lack of available software. We implemented the linear mixed IOU model in Stata and using simulations we assessed the feasibility of fitting the model by restricted maximum likelihood when applied to balanced and unbalanced data. We compared different (1) optimization algorithms, (2) parameterizations of the IOU process, (3) data structures and (4) random-effects structures. Fitting the model was practical and feasible when applied to large and moderately sized balanced datasets (20,000 and 500 observations), and large unbalanced datasets with (non-informative) dropout and intermittent missingness. Analysis of a real dataset showed that the linear mixed IOU model was a better fit to the data than the standard linear mixed model (i.e. independent within-subject errors with constant variance).     

Sex work: constructing ‘families’ with community of practice theory

This article examines the construction and maintenance of fictive kinships within a street-level sex work community. The analysis is supported by interviews of 14 street-level sex workers regarding everyday language use within their community. Utilizing community of practice theory to demonstrate how peripheral participants of the sex work community are socialized to understand and participate in fictive kinships, a primary finding is that language use within this community operates as a discursive framework which creates a metaphorical family where kin terms are used as an identity-making strategy. The implications of this research suggest that familial structures impact sex workers' sense of agency in relation to other members of the community. Finally, this article discusses the implications for understanding the discourse of a street-level sex worker community in the context of relationship formation and maintenance.     

Social Citizenship Rights and the Welfare Circle Dilemma: Attitudinal Findings of Two Chinese Societies

This paper places social citizenship momentum into the context of squaring the welfare circle for examination. Citizenship is a powerful world-level organizing principle especially by the minority groups for their claim of equal treatment. The squaring of welfare circle refers to the need of the governments to constrain their budgets but also meet the rising demands from and needs of their people. This comparative study looks at the attitudinal findings of two Chinese societies of Hong Kong and Taiwan to see whether or not the cultural factor can mitigate the momentum of social citizenship rights and the demand side of the welfare circle. Implications for social policy are also discussed.     

East meets West: internist also practices acupuncture

Meet Col. Arnyce Pock, a Western-trained internist who made several trips to China to study the ancient art of acupuncture.     

Interactive remembering: Insights into the communicative competence of older adults

This paper challenges some of the traditional views of older adults' speech by considering conversational narrative interaction among three elderly peers from a life-span developmental perspective of aging. A range of pragmatic models developed primarily for younger adults' talk are extended to facilitate an analysis of interaction among elderly peers, showing how the speakers in the data use sophisticated strategies to recall events and establish communicative bridges between conversation participants. The differing social and communicative goals of older adults are examined, contrasting their communicative, and particularly narrative, competency with negative perceptions of elderly discourse, thus demonstrating that to view aging as synonymous with linguistic decline is unfounded.     

Profiteering from Disaster: Why Planners Need to be Paying More Attention to Insurance

Insurance is overlooked in planning practice and research. Focusing on house and contents insurance in Australia’s disaster-prone areas, I describe why the impacts of insurance availability and pricing on urban form requires greater attention from planners. With increasing climate change-related risks, the growing influence of insurance and insurers is exacerbating social and financial inequity: fostering disadvantaged enclaves and protected pockets of wealth, and sustaining insurer profits. I call for the better integration of insurance within planning, particularly a more considered and careful mobilization of insurance in disaster preparation. I present four research questions for advancing planning in disaster-prone urban areas.     

Fertility Behavior of Interracial Couples

Despite the unprecedented rise in the number of intermarriages and multiracial individuals in recent decades, our understanding about the fertility behavior of interracial couples is limited. Using data from the 2002 and 2006–2015 National Survey of Family Growth, this study compares the risk of pregnancy and the pregnancy intentions of interracial couples with those of same‐race couples. Interracial couples' risk of pregnancy differed little from that of same‐race White couples, with the exception of White wife–Black husband couples, whose risk of pregnancy was higher than both same‐race White and Black couples. Neither socioeconomic disparities nor union characteristics explained their elevated pregnancy risk. Interracial couples' risk of unintended pregnancy mirrored closely that of same‐race couples from the husband's racial or ethnic group. Socioeconomic disparity was the primary driver of differences in pregnancy intentions between interracial and same‐race White couples.     

Civic engagement among student veterans

Abstract

Objective: The purpose of this study was to assess participation rates in civic volunteering among service member and veteran students. Participants: Data for the present cross-sectional study were obtained from the American College Health Association’s (ACHA) 2011–2014 National College Health Assessment II (NCHA). Methods: Demographic characteristics of the study sample were explored by calculating frequencies and percentages by military service status. Research questions were explored with either Fisher’s exact test or maximum likelihood multiple logistic regression. Results: Service member and veteran students were more likely to engage in volunteerism than their non-veteran counterparts. Additionally, student veterans and non-veteran students reported that engagement in volunteer efforts both reduces their feelings of depression and increases their use of mental health services. Conclusion: The findings of this research suggest that the promotion of civic engagement and participation in volunteerism for service member and veteran students on college campuses might contribute to successful reintegration outcomes.