Changing compatibility of cohabitation and childbearing between young British women born in 1958 and 1970

We investigate the effect of parenthood on whether non-marital unions led to marriage or parting for two cohorts of British women when they were aged between 16 and 29. We compare the effect of conceptions leading to births and the presence and characteristics of children on the odds that a cohabitation was dissolved, or that it was converted to marriage, for women born in 1958 and 1970. A multilevel, multiprocess, competing-risks model allows for multiple cohabitations per woman and endogeneity of fertility status. We find that cohabiting couples’ response to impending parenthood and the presence of children changed over time. In particular, the proportion of cohabiting couples who married before a birth decreased and, in the 1970 cohort only, the risk of dissolution declined during pregnancy. There is also evidence that the presence of a child cemented a cohabiting union for women from the 1970, but not the earlier, cohort.     

The relationship between childbearing and transitions from marriage and cohabitation in Britain

In this article, we describe a general framework for the analysis of correlated event histories, with an application to a study of partnership transitions and fertility among a cohort of British women. Using a multilevel, multistate competing-risks model, we examine the relationship between prior fertility outcomes (the presence and characteristics of children and current pregnancy) and the dissolution of marital and cohabiting unions and movements from cohabitation to marriage. Using a simultaneous-equations model, we model these partnership transitions jointly with fertility, allowing for correlation between the unobserved woman-level characteristics that affect each process. The analysis is based on the partnership and birth histories that were collected for the 1958 birth cohort (National Child Development Study) aged 16-42. The findings indicate that preschool children have a stabilizing effect on their parents 'partnership, whether married or cohabiting, but the effect is weaker for older children. There is also evidence that although pregnancy precipitates marriage among cohabitors, the odds of marriage decline to prepregnancy levels following a birth.     

School bullying and health-related quality of life in Chinese school-aged children and adolescents

To explore the association between bullying and HRQoL among Chinese school-aged children and adolescents utilizing a cross-sectional survey design. Bivariate associations were used to determine the correlation between the experience of bullying and lower HRQoL, and multivariate logistic regressions were evaluated. A total of 2,155 participants, 32.57%, reported experiencing bullying: traditional bullying, 27.80% (n = 599) (β = −3.55, p < .001, SE = 0.41), and cyberbullying, 7.47% (n = 161) (β = −2.50, p < .001, SE = 0.71). The degree of traditional bullying (β = −10.28, p < .001, SE = 1.19) was negatively significantly associated with HRQoL. Other determinants of the impact of the bullying in this cohort were the children's school performance and their relationship with parents, teachers and classmates.     

你所不知道的普京

尽管他常常高调现身,但其形象依然模糊并难以捉摸。他在克格勃内的身份,他在前东德德累斯顿的工作经历从来都是一个谜,甚至他担任圣彼得堡市长助理时的活动,人们也都知之甚少。直到1996年8月,他到莫斯科赴任,仍有人将他贬损为一个平庸的角色。一名叶利钦时代的高官曾评价他是一个庸才,是叶利钦家族的傀儡,追逐金钱的克格勃恶棍。也许所有这一切表象都是不准确的。事情的发展最终证明,他比十几年前几乎所有人所能认识到的那个人更加重要,也更     

Exploring internalized ableism using critical race theory

This paper is an attempt to theorize about the way disabled people live with ableism, in particular internalized ableism. Typically literature within disability studies has concentrated on the practices and production of disablism, examining attitudes and barriers that contribute to the subordination of people with disabilities in society. My exploration occurs through examining the insights of critical race theory (CRT) and the contribution that CRT can further make to thinking through the processes, formation and consequences of ableism. A focal concern is the possible ways that the concept of internalized racism, its deployment in CRT and application to critical disability studies. The paper is interested in working through points of difference between the way internalized racism/ableism are mediated in the processes of subjectification and identifying points of convergence that can benefit dialogue across varied sites of scholarship. The author concludes that the study of ableism instead of disability/disablement may produce different research questions and sites of study.     

Segregation and Supply: Preferences and Plans among ‘Self-Made’ Women

Recently, Hakim (1991) has argued that women's choices and decisions are a key determinant of labour market behaviour and patterns of gender segregation. Drawing on a case study of women scientists and engineers, this paper examines the extent to which horizontal segregation is the product of preference and planning. The evidence suggests that the women's choices were a significant factor in entering the technical professions. However, from predominantly middle-class families, coming from single-sex schools, the women were able to specialize in technical subjects and to withstand pressure to change their decisions. Their subsequent occupational positions were the product of these educational choices rather than well-formulated career plans. Their involvement in their employers' schools/industry liaison policies highlighted that the majority of young women do not consider professional science and engineering as an appropriate job for them. The findings of the study illustrate that preferences and plans are made in ‘gendered’ social contexts in which women face different opportunities and constraints in exercising their decisions. While the study of women's attitudes and behaviour should not be neglected, sociologists should be wary of voluntaristic accounts of gender segregation which rely on rationalistic notions of labour market behaviour.     

The use of simple reparameterizations to improve the efficiency of Markov chain Monte Carlo estimation for multilevel models with applications to discrete time survival models

Summary.  We consider the application of Markov chain Monte Carlo (MCMC) estimation methods to random-effects models and in particular the family of discrete time survival models. Survival models can be used in many situations in the medical and social sciences and we illustrate their use through two examples that differ in terms of both substantive area and data structure. A multilevel discrete time survival analysis involves expanding the data set so that the model can be cast as a standard multilevel binary response model. For such models it has been shown that MCMC methods have advantages in terms of reducing estimate bias. However, the data expansion results in very large data sets for which MCMC estimation is often slow and can produce chains that exhibit poor mixing. Any way of improving the mixing will result in both speeding up the methods and more confidence in the estimates that are produced. The MCMC methodological literature is full of alternative algorithms designed to improve mixing of chains and we describe three reparameterization techniques that are easy to implement in available software. We consider two examples of multilevel survival analysis: incidence of mastitis in dairy cattle and contraceptive use dynamics in Indonesia. For each application we show where the reparameterization techniques can be used and assess their performance.