Proportional hazards regression with interval censored data using an inverse probability weight

The prevalence of interval censored data is increasing in medical studies due to the growing use of biomarkers to define a disease progression endpoint. Interval censoring results from periodic monitoring of the progression status. For example, disease progression is established in the interval between the clinic visit where progression is recorded and the prior clinic visit where there was no evidence of disease progression. A methodology is proposed for estimation and inference on the regression coefficients in the Cox proportional hazards model with interval censored data. The methodology is based on estimating equations and uses an inverse probability weight to select event time pairs where the ordering is unambiguous. Simulations are performed to examine the finite sample properties of the estimate and a colon cancer data set is used to demonstrate its performance relative to the conventional partial likelihood estimate that ignores the interval censoring.     

Boundary Ambiguity and Borderline Personality Traits: Implications for Treatment for Adolescent Girls in Foster Care

This article explores the relationship between boundary ambiguity and borderline personality traits in adolescent girls in foster care. Boundary ambiguity is a family systems concept: family members are uncertain about who is in or out of the family—in either psychological or physical presence or absence. In foster care, it can be assumed that an adolescent girl has experienced trauma significant enough to be removed from her family. The connection between early childhood trauma and attachment disruption in addition to the connection between insecure/disorganized attachment and borderline personality disorder leads to the conclusion that these same adolescents are at high risk for developing borderline personality traits. The sample consists of 40 caseworkers from New England’s child protection departments and therapists from residential programs working with adolescent girls. They completed the Shedler-Westen Assessment Procedure for Adolescents to determine the presence of personality disruption as well as a variation of Pauline Boss’s Boundary Ambiguity Scale #1, and demographic questionnaires. The results find a significant correlation between boundary ambiguity and borderline personality traits. These findings provide directions for future research in clinical treatment and child welfare policy making.     

How Living Wage Legislation Affects U.S. Poverty Rates

I investigate how living wage legislation affects poverty. I find evidence that living wage ordinances modestly reduce poverty rates where such ordinances are enacted. However, there is no evidence that state minimum wage laws do so. The difference in the impacts of the two types of legislation conceivably stems from a difference in the party responsible for bearing the burden of the cost.

对后现代艺术的反思

在后现代视角主义基础上反思后现代艺术现象并肯定了其独特价值,主要涉及五个方面:历史概念的去总体化,真理概念的去总体化,生活形式的去总体化,艺术的去总体化以及当代艺术博物馆排列的后现代转向。     

Explanatory Matrices on the Causes of a Tailing Dam Collapse in Brazil: The (Dis)Articulation of Epistemes

Mining tailing dam ruptures are increasingly common events in South America. Due to their high potential degree for avoidance, they are considered to be technological disasters and often have a considerable impact on local populations and communities, as well as affecting the ecosystem. The failure of the Fundão dam in 2015 in the Brazilian State of Minas Gerais (is) considered one of the largest socioenvironmental disasters in the country's history. Different explanations for the causes of the disaster were put forward by various social actors. This article critically analyzes these discourses through the theoretical-methodological reference of the social theory of discourse, with the aim of understanding the various discursive contexts of the causes of the breach of the dam. The analysis and understanding of these explanatory matrices suggested that different discourses present different epistemological approaches to the causes of the disaster, related to aspects such as sociohistorical, political, ideological, and asymmetric relations of power. The statements had different emphases, being associated with distinct epistemic positions that were often not in convergence.  Moreover, certain terms and approaches reinforce or minimize processes of vulnerability experienced by the affected populations. These discourses present consents, dissents, and contradictions and when systematically integrated can improve the planning of risk management and broaden the understanding related to technological disaster occurrence.     

The slippery slope of constructivism

While constructivism as both a philosophy and a clinical practice is being embraced by many individual and family practitioners, it remains controversial. This paper examines the difficulties one encounters in trying to balance the client's “relative truths” with those around them, including that of the therapist. Through the use of clinical vignettes, the authors demonstrate the difficulties inherent in dealing with ambiguities in the clinical situation, balancing the client's perspective, with that of a predominant culture or biological “fact,” and considering the issue of the client's “veracity.” Particular attention is paid to the difficulties involved in work with trauma survivors, whose own recollections of events may be ambiguous. Finally, the authors discuss the implications that constructivism holds for research and social action and advocacy. In sum, the authors recognize significant promise in the constructivist perspective, but caution clinicians to consider the inherent difficulties in a theory that relies on the relativity of truth.     

Taking Tilly south: durable inequalities, democratic contestation, and citizenship in the Southern Metropolis

Drawing on Charles Tilly’s work on inequality, democracy and cities, we explore the local level dynamics of democratization across urban settings in India, South Africa, and Brazil. In all three cases, democratic institutions are consolidated, but there is tremendous variation in the quality of the democratic relationship between cities and their citizens. We follow Tilly’s focus on citizenship as the key element in democratization and argue that explaining variance across our three cases calls for analyzing patterns of inequality through the kind of relational lens used by Tilly and recognizing that patterns of contestation are shaped by shifting political relationships between the nation and the city. We conclude that Tilly’s theoretical frame is nicely sustained by the comparative analysis of cases very different from those that stimulated his original formulations.