Book reviews

Statistical Papers -     

Administrative rationality and coping strategies in shift work

Shift work (SW) can affect worker health and productivity. Working at night, workers often accumulate fatigue and are less productive. In Brazil, laws have been drafted aiming to reduce night work and rotating shift hours. In order to slash costs, companies have been looking for new arrangements to improve productivity under these conditions. The purpose of this study was to examine management changes and their outcomes in a large glass factory located in an industrial region of Brazil. The results show that the management, seeking equal productivity among shifts, focused its efforts mainly on distributing employee expertise. The arrangement resulted in 12 different groups that combine to serve three fixed shifts. A same shift can be served by more than one group, and the members of a same group share days off on different days. There was no statistically significant productivity difference among the three shifts. The on-site examination showed that part of the production was held by the workers and transferred to the next shift in order for them to be able to meet the management's performance rate requirements. The finding shows how a Brazilian cultural trait (resistance without conflict) is used to drive coping in SW.     

Affective capitalism,humanitarianism and extractivism in Colombia: old and new borders for future times

Contemporary Colombian conjuncture encompasses two dynamics. These incorporate social, economic, political and cultural aspects, whose related rationalities are yet to be mapped out and understood in their complex and multi-layered dimensions and registers. On the one hand, as I will explain throughout the text, we have been witness to on-going peace talks between the government and the Fuerzas Armadas Revolucionarias de Colombia guerrilla group, a whole set of practices of forgiveness, inaugurations of memory museums, the passing of the victims and land restitution law, as well as the recognition of victims and the effervescence of their movements and organizations. These factors have spiralled victims’ demonstrations and fuelled marches all over the country. On the other hand, there are increased rates of foreign investment in those regions that, until as little as a decade ago, were subject to appalling rates of internal displacement, massacres and disappearances, and which now constitute new borders where global capitalism has been able to reconfigure and increase its rates of capital accumulation. In this article, I analyse the processes referred to above and their complex relationships from the vantage point of a cultural studies interrogation of the affective and the popular, focusing on two Colombian regions: Montes de María and Mapiripán. My goal is to understand how different groups and actors are experiencing these processes in their everyday lives. Here, I include victims and their organizations but also government officials and entrepreneurs related to agro-industry initiatives – mentioned below – today refashioned within the new mantra of corporate responsibility. I want to understand the issue of where people are located and what they are doing, facing, consuming, or resisting in terms of these new challenges. Finally, I wish to offer an analytical study that can capture the everyday textures of these processes in a complex and concrete fashion.     

Smoothed bootstrap bandwidth selection for nonparametric hazard rate estimation

A smoothed bootstrap method is presented for the purpose of bandwidth selection in nonparametric hazard rate estimation for iid data. In this context, two new bootstrap bandwidth selectors are established based on the exact expression of the bootstrap version of the mean integrated squared error of some approximations of the kernel hazard rate estimator. This is very useful since Monte Carlo approximation is no longer needed for the implementation of the two bootstrap selectors. A simulation study is carried out in order to show the empirical performance of the new bootstrap bandwidths and to compare them with other existing selectors. The methods are illustrated by applying them to a diabetes data set.     

Bats in urban areas of Brazil: roosts,food resources and parasites in disturbed environments

Urbanization is a widespread intense land use that generally results in biodiversity decline. Among the taxa capable to adapt to urban landscapes, bats are particularly ubiquitous. Brazil has one of the world’s largest diversity of bat species and one of the highest urbanization rates of the world. Yet, few studies have synthesized the biology of bats in urban environments, especially in Brazil. To fill this gap, we systematically reviewed the published scientific literature on the bat fauna found in urban areas of Brazil. The knowledge of urban bats is still incipient and heterogeneously spatially distributed, mostly concentrated in the southeastern region of the country. The assembled list of 84 urban species, of which nineteen are new species records for urban areas (including one new family), represents 47% of the bat richness registered in the country. Thirty-one bat species (37%) were captured exclusively inside forest fragments. Moreover, we provide information on the resources used within the urban matrix by summarizing the roosting sites for 38 bat species, as well as 31 plants consumed by at least twelve bat species. Regarding parasitological aspects, we listed eleven zoonotic parasites hosted by 27 bat species and discussed their potential to become a public health threat. Likewise, we considered the different features linked to urbanization, including impacts on immunity, body condition and susceptibility to acquiring parasites, as possible bat conservation issues. Finally, we defined an agenda for bat studies in urban areas of Brazil.