Risk of physical assault against school educators with histories of occupational and other violence: a case-control study

A case-control study design was used to investigate risks of work-related physical assault (PA) associated with a history of violent victimization among educators. A total of 6,469 state-licensed educators (Kindergarten - Grade 12) worked in the previous 12~months and were eligible to participate. Exposure data were collected from cases (reporting a PA event in previous 12 months, n=290) for the month before PA, and from controls (no work-related PA in previous 12 months; n=867) for a randomly selected working month. Odds ratios and 95% confidence intervals identified increased risks for educators with any prior history of work-related (17.3, 11.4-26.3) or non-work-related PA (2.0, 1.2-3.5). In addition, PA risk in the previous twelve months increased with the number of previous victimizations, and risk also increased for educators with histories of non-physical violence (work- and non work-related). The results present a compelling case for targeted interventions and further research.     

Social Indicators of Substance Abuse Prevention: A Need-Based Assessment

We combine a variety of census and archival data to assess the relationships between social area characteristics and substance use. We found a substantial association between social area characteristics and substance use. We focus on intra and inter community, family, school and individual domain correlations to produce a prevention need-based score to rank communities from high to low need areas. Our analyses support the general risk and protective factor model advocated by Hawkins et al. (1992). As an important outcome of this work we suggest an objective criterion for selecting variables for the final model of the social indicators; suggest a set of weights for the selected factors and validate the selected factors with regard to substance abuse by linking the social indicator database to substance abuse outcome measures from another independent database. The selection criterion was based on intra domain correlations and proved to be robust. The weights were proportional to the information conveyed by each extracted factor. Analyses of intra-domain correlations are useful in identifying the types of prevention programs needed for each municipal area. Analyses of inter-domain correlations resulted in producing an overall need score based on social area characteristics. Many of the domains revealed more than one dimension, especially the school and the community/environment domains. Our analysis supports the use of social area characteristics in predicting the need for substance abuse prevention and treatment. It also suggests cautious and well informed decisions in selecting the indicators for a need based model.     

Geographical variability and network structure

In this paper, we explore the potential implications of geographical variability for the structure of social networks. Beginning with some basic simplifying assumptions, we derive a number of ways in which local network structure should be expected to vary across a region whose population is unevenly distributed. To examine the manner in which these effects would be expected to manifest given realistic population distributions, we then perform an exploratory simulation study that examines the features of large-scale interpersonal networks generated using block-level data from the 2000 U.S. Census. Using a stratified sample of micropolitan and metropolitan areas with populations ranging from approximately 1000 to 1,000,000 persons, we extrapolatively simulate network structure using spatial network models calibrated to two fairly proximate social relations. From this sample of simulated networks, we examine the effect of both within-location and between-location heterogeneity on a variety of structural properties. As we demonstrate, geographical variability produces large and distinctive features in the “social fabric” that overlies it; at the same time, however, many aggregate network properties can be fairly well-predicted from relatively simple spatial demographic variables. The impact of geographical variability is thus predicted to depend substantially on the type of network property being assessed, and on the spatial scale involved.     

The Differential Effects of Racially Homophilous Sponsorship Ties on Job Opportunities in an Elite Labor Market: The Case of NCAA Basketball Coaching

We examine how an assistant coach's race and the race of his supervisor (the head coach) interact to affect future job quality. While past research argues that homophily is beneficial to job mobility, we find differential effects based on the race. OLS and OLR regression analyses on the quality of one's first head coaching job in NCAA men's basketball indicate that black assistant coaches working under black head coaches (black homophily) are significantly disadvantaged compared to all other racial combinations: white assistants with white supervisors (white homophily), white assistants with black supervisors (white heterophily), and black assistants with white supervisors (black heterophily). In contrast, there is no significant difference in job quality among the latter three groups: white homophily, white heterophily, and black heterophily. This indicates that while homophily is neither advantageous nor disadvantageous for whites, it is disadvantageous for black job candidates. This racially based disadvantage makes it difficult for minority job candidates to break through the glass ceiling and has real‐world financial implications.     

‘A moral millstone'?: British humanitarian governance and the policy of liberated African apprenticeship, 1808–1848

Between 1808 and 1848, under the terms of the Abolition Act, thousands of liberated Africans were distributed as apprentices to private citizens in the colony of Sierra Leone. In 1847, Governor Fergusson described apprenticeship, by that date primarily of children, as ‘a moral millstone round the necks’ of the colony's population. The Liberated African Department in particular was singled out by many contemporary European critics as unable or unwilling to monitor the whereabouts of apprentice children and to police the welfare obligations placed on apprentice-holders. This article explores a policy that was identified with widespread patterns of abuse, neglect and re-enslavement, and considers contemporary critiques in terms of underlying anxieties regarding the efficacy of humanitarian governance and the possibility of a post-slavery world.     

Spike-and-slab type variable selection in the Cox proportional hazards model for high-dimensional features

In this paper, we develop a variable selection framework with the spike-and-slab prior distribution via the hazard function of the Cox model. Specifically, we consider the transformation of the score and information functions for the partial likelihood function evaluated at the given data from the parameter space into the space generated by the logarithm of the hazard ratio. Thereby, we reduce the nonlinear complexity of the estimation equation for the Cox model and allow the utilization of a wider variety of stable variable selection methods. Then, we use a stochastic variable search Gibbs sampling approach via the spike-and-slab prior distribution to obtain the sparsity structure of the covariates associated with the survival outcome. Additionally, we conduct numerical simulations to evaluate the finite-sample performance of our proposed method. Finally, we apply this novel framework on lung adenocarcinoma data to find important genes associated with decreased survival in subjects with the disease.     

The Body in Mind: Mead's Embodied Cognition

This article highlights the role played by the body in the work of George Herbert Mead. For Mead, the social emergence of mind depends on human physiology. This is revealed through a detailed exploration of three thematic domains in his work: the organism–environment dyad, perception, and the manipulatory stage of the act. From this, I argue that Mead saw the body as constitutive of cognition and central to the development of mind and self. Present-day research supports this view and demonstrates Mead's relevance for understanding embodied cognition.