Covid-19 as an issue of memory, truth, and justice: an interview with Deisy Ventura. / Covid-19 como tema de memória, verdade e justiça: entrevista com Deisy Ventura.

This interview with Deisy Ventura, professor at the Faculty of Public Health of the Universidade de São Paulo, discusses the political dimension of the covid-19 pandemic in Brazil. She has become a leading reference on the subject due to her extensive knowledge of international law, with a focus on health. In this interview, Deisy Ventura offers some reflections on global health and discusses the handling of the pandemic in Brazil and its human rights implications. According to Ventura, the Brazilian government had a systematic policy for the spread of the virus, and the pandemic should be treated as a matter of memory, truth, and justice.

Entrevista com Deisy Ventura, professora titular da Faculdade de Saúde Pública da Universidade de São Paulo, que discute a dimensão política da pandemia de covid-19 no Brasil. A pesquisadora se tornou uma das principais referências no assunto por seu amplo conhecimento de direito internacional com foco em saúde. Na entrevista, ela apresenta reflexões relacionadas à saúde global, além de discutir a gestão da pandemia no país e suas implicações para os direitos humanos. De acordo com a pesquisadora, houve no Brasil uma política governamental sistemática de disseminação do vírus, e a pandemia deveria ser tratada como uma questão de memória, verdade e justiça.

'Eradication was a dirty word': Anti-gambiae campaign, between cooperation and rivalry (1938-1940).

This article analyzes the efforts of the International Health Division of the Rockefeller Foundation (IHDRF) in its project initiative that resulted in the extermination of the African mosquito Anopheles gambiae from Brazil in 1940. This species, which originated in Dakar, Senegal, was identified in the Brazilian city of Natal in 1930, where insufficient local emergency sanitation actions enabled it to spread into the interior of the Brazilian northeast, causing an unprecedented malaria epidemic in the Americas in 1938, after years of silent spread. We will analyse the formation of Brazil's Malaria Service of the Northeast (MSNE), discussing its political and scientific controversies and how the transition from the idea of extermination to the idea of eradication was consolidated in the political process of creating this successful sanitation campaign. In addition, we will discuss how the integration and transnational development of medical entomology at the time was a fundamental factor in the cooperation and challenges among scientists involved in this campaign. The international cooperation of scientists, albeit oriented towards the project of eradication of this mosquito, organised different research agendas and gained new insights into the global dissemination of mosquito-borne diseases.

Covid-19 como tema de memória, verdade e justiça: entrevista com Deisy Ventura / Covid-19 as an issue of memory, truth, and justice: an interview with Deisy Ventura

Resumo Entrevista com Deisy Ventura, professora titular da Faculdade de Saúde Pública da Universidade de São Paulo, que discute a dimensão política da pandemia de covid-19 no Brasil. A pesquisadora se tornou uma das principais referências no assunto por seu amplo conhecimento de direito internacional com foco em saúde. Na entrevista, ela apresenta reflexões relacionadas à saúde global, além de discutir a gestão da pandemia no país e suas implicações para os direitos humanos. De acordo com a pesquisadora, houve no Brasil uma política governamental sistemática de disseminação do vírus, e a pandemia deveria ser tratada como uma questão de memória, verdade e justiça.

Abstract This interview with Deisy Ventura, professor at the Faculty of Public Health of the Universidade de São Paulo, discusses the political dimension of the covid-19 pandemic in Brazil. She has become a leading reference on the subject due to her extensive knowledge of international law, with a focus on health. In this interview, Deisy Ventura offers some reflections on global health and discusses the handling of the pandemic in Brazil and its human rights implications. According to Ventura, the Brazilian government had a systematic policy for the spread of the virus, and the pandemic should be treated as a matter of memory, truth, and justice.

Data-Driven Analysis of Hole-Transporting Materials for Perovskite Solar Cells Performance.

We have created a dataset of 269 perovskite solar cells, containing information about their perovskite family, cell architecture, and multiple hole-transporting materials features, including fingerprints, additives, and structural and electronic features. We propose a predictive machine learning model that is trained on these data and can be used to screen possible candidate hole-transporting materials. Our approach allows us to predict the performance of perovskite solar cells with reasonable accuracy and is able to successfully identify most of the top-performing and lowest-performing hole-transporting materials in the dataset. We discuss the effect of data biases on the distribution of perovskite families/architectures on the model's accuracy and offer an analysis with a subset of the data to accurately study the effect of the hole-transporting material on the solar cell performance. Finally, we discuss some chemical fragments, like arylamine and aryloxy groups, which present a relatively large positive correlation with the efficiency of the cell, whereas other groups, like thiophene groups, display a negative correlation with power conversion efficiency (PCE).

Limitations of machine learning models when predicting compounds with completely new chemistries: possible improvements applied to the discovery of new non-fullerene acceptors.

We try to determine if machine learning (ML) methods, applied to the discovery of new materials on the basis of existing data sets, have the power to predict completely new classes of compounds (extrapolating) or perform well only when interpolating between known materials. We introduce the leave-one-group-out cross-validation, in which the ML model is trained to explicitly perform extrapolations of unseen chemical families. This approach can be used across materials science and chemistry problems to improve the added value of ML predictions, instead of using extrapolative ML models that were trained with a regular cross-validation. We consider as a case study the problem of the discovery of non-fullerene acceptors because novel classes of acceptors are naturally classified into distinct chemical families. We show that conventional ML methods are not useful in practice when attempting to predict the efficiency of a completely novel class of materials. The approach proposed in this work increases the accuracy of the predictions to enable at least the categorization of materials with a performance above and below the median value.

Backlash in global health and the end of AIDS' exceptionalism in Brazil, 2007-2019.

This paper examines the decline of the AIDS Programme in Brazil, the Latin American country most affected by the epidemic, with emphasis in the second decade of the twenty-first century. For many years, Brazil served as a model in Global Health due to a comprehensive preventive policy, a partnership between the government and health activists and the support of life-saving drugs as public goods rather than commodities. The regression of AIDS policies in Brazil interacted with developments in the United States as well as with multilateral agencies like UNAIDS that emphasised biomedicalisation in the response to the disease where broad human-rights programmes and alliance with activists were not priorities. International programmes like the 'Ending AIDS' campaign indirectly undermined the exceptional status AIDS enjoyed since the late 1980s. The backlash in Brazilian policies to fight AIDS was a result of the fragmentation of the left and the empowerment of radical conservative authoritarian and religious forces. The result was the breakdown of the long-held belief that successful anti-AIDS disease programmes could simultaneously help control the disease and build better healthcare systems and ultimately prompted the end of the special place AIDS' policy had in Brazil.

Salud en emergencia: historia de as batallas contra las epidemias y la COVID-19 / Health in emergency: history of the battles against the epidemics and the COVID-19

Aborda o impacto do desenvolvimento e das consequências das epidemias que tem preocupado o planeta. Para traçar um panorama, o autor concentra o estudo nas percepções e testemunhos dos pacientes e trabalhadores da saúde que não pertencem às elites médicas