Ebola Virus Dose Response Model for Aerosolized Exposures: Insights from Primate Data

This study develops dose–response models for Ebolavirus using previously published data sets from the open literature. Two such articles were identified in which three different species of nonhuman primates were challenged by aerosolized Ebolavirus in order to study pathology and clinical disease progression. Dose groups were combined and pooled across each study in order to facilitate modeling. The endpoint of each experiment was death. The exponential and exact beta-Poisson models were fit to the data using maximum likelihood estimation. The exact beta-Poisson was deemed the recommended model because it more closely approximated the probability of response at low doses though both models provided a good fit. Although transmission is generally considered to be dominated by person-to-person contact, aerosolization is a possible route of exposure. If possible, this route of exposure could be particularly concerning for persons in occupational roles managing contaminated liquid wastes from patients being treated for Ebola infection and the wastewater community responsible for disinfection. Therefore, this study produces a necessary mathematical relationship between exposure dose and risk of death for the inhalation route of exposure that can support quantitative microbial risk assessment aimed at informing risk mitigation strategies including personal protection policies against occupational exposures.     

Couple-Level Patterns of Disclosure Process Beliefs and Their Association with Marital Satisfaction

Abstract

Grounded in symbolic interaction theory, we used latent class analysis (LCA) to investigate the preexisting patterns of belief surrounding the disclosure process in married relationships. With a sample of 131 heterosexual married dyads from the U.S., we found four classes: two classes represented similarity of spouses’ beliefs (Both High Beliefs and Neither High Beliefs), and two classes represented dissimilarity of spouses’ beliefs (where only the wife endorsed high beliefs, Wife High Beliefs, and where only the husband did, Husband High Beliefs). Husbands’ satisfaction was positively associated with membership in the Both High Beliefs class. An interaction between spouses’ satisfaction was found: the impact of wives’ satisfaction on class membership is dependent on husbands’ satisfaction. Implications for research and practice are discussed.     

Navigating the gendered academy: women in social work academia

ABSTRACT

Women fare less well than men across all academic disciplines: they are less likely to be promoted, they earn less, and many more professors are men. There has, however, been little analysis to date of the experience of women in social work education, a discipline that has historically had higher representation of female staff and students. This study set out to explore women in the social work academy through a case-study of social work education in Scotland. A mixed-methods approach was used, including a review of relevant literature; an online survey of women and men academics in social work education; and semi-structured interviews with female social work leaders, past and present. The study found that women in the social work academy faced the same pressures as other women in higher education; some of these pressures were also shared by men. Most significant, however, was the extent to which women in social work academia experienced twin challenges, firstly, as female academics and secondly, as female social work academics in a discipline that struggles for recognition in the academy. We conclude that this makes for a contradictory and, at times, ambiguous experience for women as they navigate the gendered academy.     

Exploring the motivation and willingness of self-initiated expatriates,in the civil engineering industry,when considering employment opportunities in Qatar

This paper provides empirical and contextual insight into the complexity of Self-Initiated Expatriates’ (SIEs) experiences in a unique setting. Factors that influence SIEs in the civil engineering industry, when considering overseas employment in Qatar, are identified and considered. Drawing comparison to organizational expatriates (OEs), this paper uses semi-structured interviews conducted with professionals from the civil engineering and construction industries. The research surfaced that different factors interconnect to affect individuals’ decisions about overseas employment. Three factors, specifically; location appeal, host country as an employment setting and effect of expatriation on the family, appear to be more influential to participants when the proposed destination is Qatar.     

Using geotagged tweets to track population movements to and from Puerto Rico after Hurricane Maria

Population and Environment - After a disaster, there is an urgent need for information on population mobility. Our analysis examines the suitability of Twitter data for measuring post-disaster...     

The role of perceptions of partner's alcohol use in heavy alcohol use and alcohol reduction intervention preferences among LGBQ adults in primary,romantic relationships

Correlates of heavy episodic alcohol and alcohol reduction intervention preferences were examined among lesbian, gay, bisexual, and queer (LGBQ) adults in romantic relationships. Anonymous data were collected online; analyses included logistic and multinomial regression models. One-fourth of participants reported recent heavy episodic alcohol use. Perceptions of partners' engaging in heavy alcohol use was associated with an increased odds of engaging in heavy alcohol use. Perceptions of partners' heavy alcohol use was associated with an increased odds of preferring a couples-based alcohol intervention compared to preferring no intervention. Findings highlight the need to consider partners in alcohol interventions for LGBQ couples.     

Sexual Harassment in Casinos: Effects on Employee Attitudes and Behaviors

This study focuses on sexual harassment and job satisfaction, organizational commitment, and employee turnover among casino employees. It is the first study investigating sexual harassment in the gaming industry. Based on sex-role spillover theory it was expected that sexual harassment has less of an impact on casino employees than on employees in other industries. Six Reno, Nevada casinos participated in the study and 330 responses were generated from casino employees. The study results show that sexual harassment of and by casino employees is perceived to occur at about the same rate as in other industries. Sexually harassed employees were compared to employees who indicated that they had not been sexually harassed. Sexually harassed employees were less satisfied with their jobs and less committed to the organization. However, they were not more likely to quit their jobs. Sexually harassed employees tended to be younger, Caucasian, and in dealer positions. Hence, in addition to the well-publicized cost of sexual harassment lawsuits, the study shows that sexual harassment in casinos may well be the source of hidden costs important to human resources managers. A result of major interest was that employees who had been harassed held management responsible for not ensuring a work environment that is free of sexual harassment. Implications for casino management are discussed.     

Early Transition Stages and Heterogeneity in Criminal Careers among Young Offenders*

Dans cet article, nous examinons différents modèles de rapports avec les forces policières parmi des sous-populations hétérogènes de jeunes, dans les premiers stades de transition de leur carrière criminelle. Nous croyons que la recherche axée sur l'hétérogénéité et sur les premiers stades de la transition vers la criminalité peut nous renseigner sur les éléments de la dynamique comportementale - jusqu'ici ignorés - dans l'étude de l'apparition d'un comportement criminel et de sa persistance. À partir de données policières informatisées provenant d'une grande ville de l'ouest du Canada, nous utilisons certains modèles de survie basés sur des événements pour dégager des modèles d'apparition et de persistance de comportements criminels sur une période de six mois, dans les premiers rapports avec la police. Les résultats démontrent des modifications importantes à court terme dans le comportement criminel de sousgroupes de jeunes de niveaux différents. Certains semblent avoir un comportement criminel ponctuel, qu'ils abandonnent par la suite, tandis que d'autres continuent de se comporter en criminels, en augmentant la fréquence et le taux d'infractions. Toutefois, certains modèles hétérogènes existent au sein de ces sous-groupes de jeunes délin quants dans les premières phases de développement de la criminalité. We investigate distinctive patterns of police contacts among heterogeneous subpopulations of youths in the early transition stages of their criminal careers. We argue that research focussing upon heterogeneity and the initial transition stages of criminality can provide insights into behavioural dynamics previously overlooked in the study of the onset and development of criminal careers. Using computerized police archival data from a large western Canadian city, we employ event history survival models to estimate patterns of onset and persistence for delinquent careers over six-month intervals in the early stages of police contact. Our results provide strong evidence of meaningful short-term change in offending among multiple levels of youth subgroups. Some youths appear to offend only briefly and then desist, while others continue offending and at a higher rate. However, there also appear to be patterns of heterogeneity within as well as between these subgroups of young offenders during the early stages of criminal careers.