Parental grief in three societies: networks and religion as social supports in mourning

How do people respond to the grief of parents over the death of their infant child? This article documents the experience of one of the authors, an American married to a Russian whose child died in England. Responses to this death by friends, colleagues and family in the USA, England, and two cities in Russia varied considerably in terms of depth and degree of engagement (emotional engagement, respect, or distance and avoidance). What factors underlie these varied responses? Two are identified, one structural, the other cultural: the strength of the social ties within social networks, and religiosity as historically sedimented within a culture. The degree of engagement is correlated with network form; but the content of engagement depends on religiosity.     

Sequential design approaches for bioequivalence studies with crossover designs

The planning of bioequivalence (BE) studies, as for any clinical trial, requires a priori specification of an effect size for the determination of power and an assumption about the variance. The specified effect size may be overly optimistic, leading to an underpowered study. The assumed variance can be either too small or too large, leading, respectively, to studies that are underpowered or overly large. There has been much work in the clinical trials field on various types of sequential designs that include sample size reestimation after the trial is started, but these have seen only little use in BE studies. The purpose of this work was to validate at least one such method for crossover design BE studies. Specifically, we considered sample size reestimation for a two-stage trial based on the variance estimated from the first stage. We identified two methods based on Pocock's method for group sequential trials that met our requirement for at most negligible increase in type I error rate.     

Bootstrap goodness-of-fit test for the beta-binomial model

A common question in the analysis of binary data is how to deal with overdispersion. One widely advocated sampling distribution for overdispersed binary data is the beta-binomial model. For example, this distribution is often used to model litter effects in toxicological experiments. Testing the null hypothesis of a beta-binomial distribution against all other distributions is difficult, however, when the litter sizes vary greatly. Herein, we propose a test statistic based on combining Pearson statistics from individual litter sizes, and estimate the p-value using bootstrap techniques. A Monte Carlo study confirms the accuracy and power of the test against a beta-binomial distribution contaminated with a few outliers. The method is applied to data from environmental toxicity studies.     

Market management of the essential economy: an essay

This essay presents a framework for thinking about public economic policy. The argument is that the prevailing theory of competitive markets serves a useful public purpose but creates problems when made into an ideology. The core theory and philosophy suffers from oversights and illusions. Fundamentalist thinking found in it can be dangerous for the long run well-being of humanity. These insights lead to the conclusion that the fundamental task of an economics for public policy should be to develop a theory of workable markets.     

The Timing of Cohabitation and Engagement: Impact on First and Second Marriages

Using a multistate sample of marriages that took place in the 1990s, this study examined associations between premarital cohabitation history and marital quality in first (N = 437) and second marriages (N = 200) and marital instability in first marriages (intact N = 521, divorced N = 124). For first marriages, cohabiting with the spouse without first being engaged or married was associated with more negative interaction, higher self‐reported divorce proneness, and a greater probability of divorce compared to cohabiting after engagement or marriage (with patterns in the same direction for marital positivity). In contrast, there was a general risk associated with premarital cohabitation for second marriages on self‐reported indices of marital quality, with or without engagement when cohabitation began.     

Real Wage Cyclicality in Italy

This paper analyses the cyclical behaviour of male real wages in Italy, distinguishing between North and Centre‐South, using the European Community Household Panel 1994–2001. We separate job stayers (remaining in the same job), from within‐ and between‐company job movers. Stayers are the large majority. We find stayers in the North to have high procyclicality of real wages, higher in fact than the USA and the UK. Procyclicality is highest in small firms and the private sector, as expected. In contrast, we find that real wages in the Centre‐South exhibit little cyclicality, responding rather to Northern than to local unemployment conditions.     

The relationship between homosexuality, internalized homo-negativity, and mental health in men who have sex with men

Whether homosexuality or internalized homo-negativity is the critical variable affecting the mental health of men who have sex with men has long been debated. As part of a larger study, 422 Midwestern homosexual men completed questionnaires examining degree of homosexuality, internalized homo-negativity, and depression. Logistic regression modeling identified internalized homo-negativity, but not degree of homosexuality, as significantly associated with greater adjustment depression (OR = 1.5), major depression (OR = 2.6), dysthymia (OR = 1.5), and likelihood of being in therapy (OR = 1.4). Internalized homo-negativity was also negatively associated with overall sexual health, psychosexual maturation, comfort with sexual orientation, "outness," and peer socialization. Internalized homo-negativity, not homosexuality, appears associated with negative health outcomes. Providers should promote sexual health and avoid interventions that reinforce internalized homo-negativity.     

The continuum of dependent family care: a theoretical explanation and model

ABSTRACT

Caring for dependents with disabilities and how this type of care differs from the care of typically developing dependents has largely remained unaddressed in the work–family literature, partly because of a lack of theoretical development on the concept of dependent family care. Studies examining dependent family care often apply a life course perspective, missing key disability factors influencing dependent family care demands and need for resources. This article develops a theoretical framework of dependent family care that accounts for both typical care, which follows the life course trajectory, and exceptional care, which follows a disability trajectory. We position dependent family care as based on a continuum, achieved by adapting life course theory, family adjustment to chronic illness, ecological systems theory, stigma theory and the social model of disability into a model. We explain how dependent family care occurs and what contributes to whether one is engaging in typical or exceptional care. We draw broad constructs representing predictors of different types of dependent family care. We provide specific examples to illustrate how one might test theoretical propositions, an agenda for further research and discuss implications for family–work–community research and practice.     

Trajectory Discrimination and Peripersonal Space Perception in Newborns

The ability to discriminate the trajectories of moving objects is highly adaptive and fundamental for physical and social interactions. Therefore, we could reasonably expect sensitivity to different trajectories already at birth, as a precursor of later communicative and defensive abilities. To investigate this possibility, we measured newborns' looking behavior to evaluate their ability to discriminate between visual stimuli depicting motion along different trajectories happening within the space surrounding their body. Differently from previous studies, we did not take into account defensive reactions, which may not be elicited by impending collision as newborns might not categorize approaching stimuli as possible dangers. In two experiments, we showed that newborns display a spontaneous visual preference for trajectories directed toward their body. We found this visual preference when visual stimuli depicted motion in opposite directions (approaching vs. receding) as well as when they both moved toward the peripersonal space and differed only in their specific target (i.e., the body vs. the space around it). These findings suggest that at birth human infants seem to be already equipped with visual mechanisms predisposing them to perceive their presence in the environment and to adaptively focus their attention on the peripersonal space and their bodily self.     

Hydrology of the Brooklyn Grange,an urban rooftop farm

Intensive agriculture is an emerging theme of green roof technology. Production of affordable, nutritious vegetables for local consumption and stormwater management are among the ecosystem services emphasized in studies of rooftop farming. However, intensive vegetable production requires irrigation, which can reduce stormwater retention, and there is little empirical data from full-scale operational rooftop farms. In this paper, we report the hydrologic performance of the Brooklyn Grange Navy Yard Farm, a 0.61-ha rooftop farm atop an 11-story building in New York City USA. We monitored soil water content, precipitation, irrigation, drainage, and crop yields to provide water balance and water use efficiency. We found cumulative discharge exceeded precipitation by 11% during the entire study period, hence the farm was a net source of water in the urban hydrologic cycle. Depending on crop types, water use efficiency at the Grange was lower than in-ground agriculture in dry regions with high irrigation demands. For the Brooklyn Grange to integrate stormwater management and water-efficient crop production, it will be important to increase soil water storage, to reduce irrigation demands and drainage loss of water while maintaining average soil moisture levels in the range of readily available water between 10 and 100 kPa of soil water tension.