“Coloniality of power” and racial dynamics: Notes toward a reinterpretation of Latino Caribbeans in New York City 1

The category of “Latino” collapses the differences among populations with diverse historical experiences of oppression. We establish in this article a distinction within the Latino Caribbean diaspora among “immigrants/’ “colonial immigrants,” and “colonial/racial subjects” of the U.S. empire. Using the notion of “coloniality of power” developed by Peruvian sociologist Aníbal Quijano, we argue that the social position and racialization of several different populations in the U.S. today has its roots in the racial hierarchies produced by centuries of European colonial expansion and that this essentially colonial set of relationships continues. We use this notion of coloniality to reconceptualize three social processes: (1) the construction of Puerto Ricans as colonial racialized subjects in the Euro‐American imaginary; (2) the transformation of Dominicans into colonial immigrants in the New York Metropolitan Area, that is, the way Dominicans became “Puerto Ricanized” and (3) the disassociation of pre‐1980s Cuban migrants from the “Puerto Ricanization” experienced by the Dominicans.     

Quantitative Assessment of the Risk of Lung Cancer Associated with Occupational Exposure to Refractory Ceramic Fibers

We present the results of a quantitative assessment of the lung cancer risk associated with occupational exposure to refractory ceramic fibers (RCF). The primary sources of data for our risk assessment were two long-term oncogenicity studies in male Fischer rats conducted to assess the potential pathogenic effects associated with prolonged inhalation of RCF. An interesting feature of the data was the availability of the temporal profile of fiber burden in the lungs of experimental animals. Because of this information, we were able to conduct both exposure–response and dose–response analyses. Our risk assessment was conducted within the framework of a biologically based model for carcinogenesis, the two-stage clonal expansion model, which allows for the explicit incorporation of the concepts of initiation and promotion in the analyses. We found that a model positing that RCF was an initiator had the highest likelihood. We proposed an approach based on biological considerations for the extrapolation of risk to humans. This approach requires estimation of human lung burdens for specific exposure scenarios, which we did by using an extension of a model due to Yu. Our approach acknowledges that the risk associated with exposure to RCF depends on exposure to other lung carcinogens. We present estimates of risk in two populations: (1) a population of nonsmokers and (2) an occupational cohort of steelworkers not exposed to coke oven emissions, a mixed population that includes both smokers and nonsmokers.     

Marginally restricted sequential D‐optimal designs

In many experiments, not all explanatory variables can be controlled. When the units arise sequentially, different approaches may be used. The authors study a natural sequential procedure for “marginally restricted” D‐optimal designs. They assume that one set of explanatory variables (x₁) is observed sequentially, and that the experimenter responds by choosing an appropriate value of the explanatory variable x₂. In order to solve the sequential problem a priori, the authors consider the problem of constructing optimal designs with a prior marginal distribution for x₁. This eliminates the influence of units already observed on the next unit to be designed. They give explicit designs for various cases in which the mean response follows a linear regression model; they also consider a case study with a nonlinear logistic response. They find that the optimal strategy often consists of randomizing the assignment of the values of x₂.     

A multivariate uniformity test for the case of unknown support

A test for the hypothesis of uniformity on a support S⊂ℝ ^d is proposed. It is based on the use of multivariate spacings as those studied in Janson (Ann. Probab. 15:274–280, 1987). As a novel aspect, this test can be adapted to the case that the support S is unknown, provided that it fulfils the shape condition of λ-convexity. The consistency properties of this test are analyzed and its performance is checked through a small simulation study. The numerical problems involved in the practical calculation of the maximal spacing (which is required to obtain the test statistic) are also discussed in some detail.     

The Latin American cohabitation boom, 1970–2007

The article describes the rise of unmarried cohabitation in Latin American countries during the last 30 years of the twentieth century, both at the national and regional levels. It documents that this major increase occurred in regions with and without traditional forms of cohabitation alike. In addition, the striking degree of catching up of cohabitation among the better-educated population segments is illustrated. The connections between these trends and economic (periods of high inflation) and cultural (reduction of stigmas in ethical domains) factors are discussed. The conclusion is that the periods of inflation and hyperinflation may have been general catalysts, but no clear indications of correlation were found between such economic factors and the rise in cohabitation. The shift toward more tolerance for hitherto stigmatized forms of conduct (e.g., homosexuality, euthanasia, abortion, singleparent household) is in line with the rise of cohabitation in regions of Argentina, Chile, and Brazil where cohabitation used to be uncommon. Further rises in cohabitation during the first decade of the twenty-first century are expected in a number of countries (e.g., mexico) despite conditions of much lower inflation.     

The relationship between social work and environmental sustainability: Implications for interdisciplinary practice

Schmitz CL, Matyók T, James C, Sloan LM. The relationship between social work and environmental sustainability: Implications for interdisciplinary practice The Brundtland Commission, formally the World Commission on Environment and Development, established by the United Nations in 1983, links peace, security, development and the environment claiming that war, poverty and structural violence result in the oppression and degradation of the human community as well as the physical environment. Likewise, human rights and social and environmental justice are intertwined, and social work, as a profession that collaborates across disciplines and within communities, is uniquely situated to provide leadership in the field of environmental studies. Its strong focus on human rights, social justice and community building creates a sound base from which to engage in the collaborative, creative, interactional processes required for environmental practice. This article seeks to discern a model for environmental social work within the context of interdisciplinary practice with peace and conflict workers and through the integration of inclusive models of economic development.     

Young people act as consultants in child‐directed research: an action research study in Iceland

This paper evaluates an action research study, conducted in Iceland, which involved young service users as consultants to the research. We used participatory group work methods to activate the young people's knowledge and guide social workers in developing their practice. The young people's advice influenced the data generation and analysis, guided the action intervention and contributed to the evaluation. Their emphasis on the quality of relationships and attention to children's concerns was crucial in developing the concept of child‐directed practice.