Can Psychosocial Intervention Improve Peer and Sibling Relations Among War‐affected Children? Impact and Mediating Analyses in a Randomized Controlled Trial

Social resources are considered important protectors in traumatic conditions, but few studies have analyzed their role in psychosocial interventions among war‐affected children. We examined (1) whether a psychosocial intervention (teaching recovery techniques, TRT) is effective in improving peer and sibling relations, and (2) whether these potentially improved relations mediate the intervention's impacts on children's mental health. Participants were 428 Palestinian children [10–13 (mean = 11.29, standard deviation SD = .68)‐year‐old girls (49.4 percent) and boys (50.6 percent)], who were cluster‐randomized into the TRT and wait‐list control groups. They reported the quality of peer (friendship and loneliness) and sibling (intimacy, warmth, conflict, and rivalry) relations, and posttraumatic stress, depressive and psychological distress symptoms, as well as psychosocial well‐being at baseline (T1), postintervention (T2), and six month follow‐up (T3). Results showed gender‐specific TRT intervention effects: Loneliness in peer relations reduced among boys and sibling rivalry reduced among girls. The TRT prevented the increase in sibling conflict that happened in the control group. The mediating hypothesis was partially substantiated for improved peer relations, and beneficial changes in sibling relations were generally associated with improved mental health.     

Repression and popular collective action: Evidence from the West Bank

This article examines the connection between state repression and the dynamics of popular collective action in the Palestinian West Bank from 1976 to 1985. Unlike traditional social movement research that focuses on structural causes, the analysis is confined here to the interaction between the state and its challengers. How shifts in the form and level of repression affected the rate of collective action is the main question addressed. A dynamic, continuous-time model, based on systematic evidence, is used to answer this question. Assuming a Weibull parameterization, the model allows for time dependence of the hazard rate. With a few exceptions, repression was found to increase the rate of collective action. This finding contradicts certain hypotheses advanced by movement researchers regarding the efficacy of state coercion and control, and suggests that repression may appropriately be considered a powerful mobilizational force in similar contexts.An earlier version was presented at the annual meetings of the American Sociological Association, Cincinnati, Ohio, August 1991.     

The Organizational Dynamics of the U.S. Environmental Movement: Legitimation,Resource Mobilization,and Political Opportunity*

Abstract We analyze the relationship between legitimation, resource mobilization, and political opportunity and the founding rate of national environmental organizations between 1895 and 1994. We address recent criticisms that organizational ecologists' reliance on the density dependence model—which treats legitimation as an unmeasured intervening variable—has failed to capture the active sociopolitical character of this process. We advocate a more historical approach to legitimation which relies on print media to construct direct measures of legitimation. Specifically, we use the yearly count of environmental books published as a measure of the legitimacy of environmentalism in the U.S. This count remains statistically significant and positively related to foundings even when other variables are added to the model. A negative second‐order effect of total books suggests that the recent proliferation of state and local environmental organizations is beginning to depress the founding rate of national organizations. Variations in resource mobilization and political opportunity also have affected foundings, though variables measuring the latter were not significant in the full model.     

Examining the Impact of Interorganizational Systems on Process Efficiency and Sourcing Leverage in Buyer–Supplier Dyads

Manufacturing firms are increasingly seeking cost and other competitive advantages by tightly coupling and managing their relationship with suppliers. Among other mechanisms, interorganizational systems (IOS) that facilitate boundary‐spanning activities of a firm enable them to effectively manage different types of buyer–supplier relationships. This study integrates literature from the operations and information systems fields to create a joint perspective in understanding the linkages between the nature of the IOS, buyer–supplier relationships, and manufacturing performance at the dyadic level. External integration, breadth, and initiation are used to capture IOS functionality, and their effect on process efficiency and sourcing leverage is examined. The study also explores the differences in how manufacturing firms use IOS when operating under varying levels of competitive intensity and product standardization. In order to test the research models and related hypothesis, empirical data on buyer–supplier dyads is collected from manufacturing firms. The results show that only higher levels of external integration that go beyond simple procurement systems, as well as who initiates the IOS, allow manufacturing firms to enhance process efficiency. In contrast, IOS breadth and IOS initiation enable manufacturing firms to enhance sourcing leverage over their suppliers. In addition, firms making standardized products in highly competitive environments tend to achieve higher process efficiencies and have higher levels of external integration. The study shows how specific IOS decisions allow manufacturing firms to better manage their dependence on the supplier for resources and thereby select system functionalities that are consistent with their own operating environments and the desired supply chain design.     

Does Employment Status Vary by Demographics? An Exploratory Study of Former Refugees Resettled in Australia

This study examined the associations between employment status and demographic factors of former refugees from Ethiopia, Burma, and Democratic Republic of Congo resettled in Australia. Two hundred and twenty-two participants completed a survey, following which chi square analysis was conducted. The results indicated that country of origin, gender, education, English language proficiency (i.e., speaking, reading, and writing), and length of stay in Australia, were associated with being employed. Ethiopians, who had been in Australia for a longer duration, were more likely to be employed. Participants from Burma, whose resettlement was relatively recent, were focused on upskilling themselves. Education qualifications were associated with likelihood of securing employment. A moderate level of education, compared to high or low, provided participants more chances to gain employment. These outcomes help in understanding the employment-related experiences of individuals from a refugee background. Implications and future directions are discussed.

IMPLICATIONS

• Employment is fundamental to successful integration of refugees. Country of origin, gender, education, English language proficiency, and length of stay are associated with employment for former refugees in Australia from Ethiopia, Burma, and Democratic Republic of Congo.

• Understanding these factors can assist stakeholders to better focus their efforts when working with these populations.

     

Migration and the Reproduction of Poverty: The Refugee Camps in Jordan

This study examines the link between poverty and migration into and out of camps, using 1999 household survey data on the refugee camp populations in Jordan and a binomial logistic regression. The findings show a clear clustering of poverty in the camps, where about one‐third of households are poor. Results from several nested regression models show that in‐migration is not the cause of persistent poverty in the camps. On the other hand, human capital variables, especially education, economic activity, and “social inheritance”, as well as demographic factors such as household headship and dependency rate have significant effects on poverty incidence. Some theoretical and policy implications of the findings are discussed.     

Efficient estimation for the conditional autoregressive model

Recently, spatial regression models have been attracting a great deal of attention in areas ranging from effect of traffic congestion on accident rates to the analysis of trends in gastric cancer mortality. In this paper, we propose efficient estimators for the regression coefficients of the spatial conditional autoregressive model, when uncertain auxiliary information is available about these coefficients. We provide efficiency comparisons of the proposed estimators based on asymptotic risk analysis and Monte Carlo simulations. We apply the proposed methods to real data on Boston housing prices and illustrate how a bootstrapping approach can be employed to compute prediction errors of the estimators.     

The Development and Validation of Stakeholder-Based Scale for Measuring University Social Responsibility (USR)

Universities are an important member of the society that are trusted with shaping future, nurturing individuals, fostering ethics, and making people more responsible towards both the corporations they work for and the society they live in. Researches that explicitly focus on measurement of social responsibility of universities are scarce. The research intends to develop and validate a measurement scale for university social responsibility (USR) by capturing the key determinants that best define the social responsibility of a university. Using systematic scale development process, the study involved both literature and focus group discussions to generate the require items. 383 respondents filled the questionnaires out of which 329 were usable. The study found that USR has seven dimensions namely: operational responsibilities, research/development responsibilities, stakeholder responsibilities, and legal responsibilities. These four responsibilities were categorized as survival level responsibilities. Intermediate responsibility included ethical responsibility while voluntary responsibilities included philanthropic and community engagement. The scale developed in the study will help to specifically look for the presence of social responsibility in universities/higher education institutions. Hence it can be important to study how well universities respond to needs of the society. There is a significant lack of research into development of a reliable and valid scale of USR. This study clearly highlights the factors that make up USR and provides a detailed scale to measure of social responsibility performance by higher education institutions.     

Convex partitions with 2-edge connected dual graphs

It is shown that for every finite set of disjoint convex polygonal obstacles in the plane, with a total of n vertices, the free space around the obstacles can be partitioned into open convex cells whose dual graph (defined below) is 2-edge connected. Intuitively, every edge of the dual graph corresponds to a pair of adjacent cells that are both incident to the same vertex.     

Shrinkage and LASSO strategies in high-dimensional heteroscedastic models

ABSTRACT

In this paper, we consider the estimation problem of the parameter vector in the linear regression model with heteroscedastic errors. First, under heteroscedastic errors, we study the performance of shrinkage-type estimators and their performance as compared to theunrestricted and restricted least squares estimators. In order to accommodate the heteroscedastic structure, we generalize an identity which is useful in deriving the risk function. Thanks to the established identity, we prove that shrinkage estimators dominate the unrestricted estimator. Finally, we explore the performance of high-dimensional heteroscedastic regression estimator as compared to classical LASSO and shrinkage estimators.