
Rafaella Gouveia Mendes, Renato Farias do Valle, Maytê Maria Abreu Pires de Melo Silva, Luís Filipe Sanches Fernandes, António Fernandes, Teresa Cristina Tarlé Pissarra, Marília Carvalho de Melo, Carlos Alberto Valera, Fernando António Leal Pacheco,
This study investigated the collapse of B1 mine-tailings dam that occurred in 25 January 2019 and severely affected the Brumadinho region (Minas Gerais state, Brazil) socially, economically and environmentally. As regards water resources, the event impacted the Paraopeba River in the first 155.3 km counted from the dam site, meaning nearly half the main water course downstream of B1. In the impacted sector, high concentrations of tailings-related Al, Fe, Mn, P in river sediment-tailings mixtures ...
Tópico(s): Mine drainage and remediation techniques
2022 - Elsevier BV | Environmental Pollution
Camila Cardoso Diogo, José Arthur de Abreu Camassa, José Eduardo Pereira, Luís Maltez, Vítor Filipe, Pedro Couto, Stefano Geuna, Ana Colette Maurício, Artur S.P. Varejão,
Peripheral nerve injury and regeneration is a challenging scientific field with relevant clinical implications. Most peripheral nerve regeneration studies have been mainly carried out on rodents. However, it is important to note that the validity of the rodent as a model to study nerve injury and regeneration and translate these results into clinical practice has been questioned by several researchers. To overcome this problem, some investigators have used companion animals and large animal species ...
Tópico(s): Nerve Injury and Rehabilitation
2017 - Taylor & Francis | Neurological Research

Teresa Cristina Tarlé Pissarra, Renata Cristina Araújo Costa, Renato Farias do Valle, Maytê Maria Abreu Pires de Melo Silva, Adriana Monteiro da Costa, Luís Filipe Sanches Fernandes, Marília Carvalho de Melo, Carlos Alberto Valera, Fernando António Leal Pacheco,
Human actions in the drainage network of hydrographic basins interfere with the functioning of ecosystems, causing negative impacts on the environment. Among these impacts, mass loads with a high concentration of phosphorus (P) have a significant potential for point and diffuse pollution of freshwater. The objective of this work was to model P spatially in the Paraopeba River basin, namely in the main water course and 67 sub-basins, and temporally in the years of 2019, 2020, and 2021, after the rupture ...
Tópico(s): Soil and Water Nutrient Dynamics
2022 - Multidisciplinary Digital Publishing Institute | Water

Rafaella Gouveia Mendes, Renato Farias do Valle, Maytê Maria Abreu Pires de Melo Silva, Gabriel Henrique de Morais Fernandes, Luís Filipe Sanches Fernandes, Teresa Cristina Tarlé Pissarra, Marília Carvalho de Melo, Carlos Alberto Valera, Fernando António Leal Pacheco,
The collapse of B1 dam at the Córrego do Feijão mine of Vale, S.A., located in the Ferro-Carvão stream watershed (Brazil), released 11.7 Mm3 of tailings rich in iron and manganese, and 2.8 Mm3 entered the Paraopeba River 10 km downstream. Seeking to predict the evolution of environmental deterioration in the river since the dam break on January 25, 2019, the present study generated exploratory and normative scenarios based on predictive statistical models, and proposed mitigating measures and subsides ...
Tópico(s): Hydropower, Displacement, Environmental Impact
2023 - Elsevier BV | The Science of The Total Environment

Rafaella Gouveia Mendes, Renato Farias do Valle, Maytê Maria Abreu Pires de Melo Silva, Gabriel Henrique de Morais Fernandes, Luís Filipe Sanches Fernandes, António Fernandes, Teresa Cristina Tarlé Pissarra, Marília Carvalho de Melo, Carlos Alberto Valera, Fernando António Leal Pacheco,
The present study aimed to investigate the rupture of B1 tailings dam of Córrego do Feijão mine, which drastically affected the region of Brumadinho (Minas Gerais, Brazil). The contamination of water resources reached 155.3 km from the dam site. In the river channel, high concentrations of Mn, Al, As and Fe were detected and correlated to the spillage of the tailings in the river. The presence of the tailings also affected the chlorophyll-a content in the water, as well as the reflectance of riparian ...
Tópico(s): Mine drainage and remediation techniques
2022 - Elsevier BV | The Science of The Total Environment

Sarah C. Hill, Renato Pereira de Souza, Julien Thézé, Ingra Morales Claro, Renato Santana Aguiar, Leandro Abade, Fabiana Cristina Pereira dos Santos, Mariana Sequetin Cunha, Juliana Silva Nogueira, Flavia Cristina da Silva Sales, Iray Maria Rocco, Adriana Yurika Maeda, Fernanda Gisele Silva Vasami, Louis du Plessis, Paola Paz Silveira, Jaqueline Góes de Jesus, Joshua Quick, Natália Coelho Couto de Azevedo Fernandes, Juliana Mariotti Guerra, Rodrigo Albergaria Réssio, Marta Giovanetti, Luíz Carlos Júnior Alcântara, Cinthya dos Santos Cirqueira, Josué Díaz‐Delgado, Fernando Luiz de Lima Macedo, María do Carmo Sampaio Tavares Timenetsky, R. de Paula, Roberta Spínola, Juliana Telles de Deus, Luís Filipe Mucci, Rosa Maria Tubaki, Regiane Maria Tironi de Menezes, Patrícia Locosque Ramos, André Luiz de Abreu, Laura N. Cruz, Nicholas J. Loman, Simon Dellicour, Oliver G. Pybus, Éster Cerdeira Sabino, Nuno R. Faria,
São Paulo, a densely inhabited state in southeast Brazil that contains the fourth most populated city in the world, recently experienced its largest yellow fever virus (YFV) outbreak in decades. YFV does not normally circulate extensively in São Paulo, so most people were unvaccinated when the outbreak began. Surveillance in non-human primates (NHPs) is important for determining the magnitude and geographic extent of an epizootic, thereby helping to evaluate the risk of YFV spillover to humans. Data ...
Tópico(s): Rabies epidemiology and control
2020 - Public Library of Science | PLoS Pathogens

Fernando António Leal Pacheco, Renato Farias do Valle, Maytê Maria Abreu Pires de Melo Silva, Teresa Cristina Tarlé Pissarra, Marília Carvalho de Melo, Carlos Alberto Valera, Luís Filipe Sanches Fernandes,
In January 25, 2019, the B1 dam of Córrego do Feijão mine located in Brumadinho municipality (Minas Gerais, Brazil) collapsed and injected nearly 2.8 Mm3 of iron (Fe)- and manganese (Mn)-rich tailings in the Paraopeba River. This study assessed the contribution of tailings to the contamination of sediments and water by those metals. The dataset was built through daily to weekly samplings executed in the two years following the event, at 27 sites located along the Paraopeba plus 9 sites located at the ...
Tópico(s): Hydropower, Displacement, Environmental Impact
2021 - Elsevier BV | The Science of The Total Environment

Fernando António Leal Pacheco, M. D. de Oliveira, Marina Santos de Oliveira, Marcelo Libânio, Renato Farias do Valle, Maytê Maria Abreu Pires de Melo Silva, Teresa Cristina Tarlé Pissarra, Marília Carvalho de Melo, Carlos Alberto Valera, Luís Filipe Sanches Fernandes,
The rupture of mine-tailings dams can severely contaminate rivers, because released tailings can interact with water for years keeping contaminant concentrations high. The general purpose of this study was to examine the rupture of B1 tailings dam in Ferro-Carvão stream (municipality of Brumadinho, state of Minas Gerais, Brazil), which occurred in 25 January 2019 and contaminated the main water course (Paraopeba River) with 2.8 Mm3 of metal-rich tailings. The specific purpose was to assess the percentage ...
Tópico(s): Mine drainage and remediation techniques
2022 - Elsevier BV | The Science of The Total Environment

Dayson Castilhos, Alana Maria Polesso, Alany Cristyane Felix da Silva, Alexsandro Bispo dos Santos, Alice Tâmara de Carvalho Lopes, Aloísio Alkmim de Oliveira Filho, Ana Flávia Santos da Cunha, Anderson Puker, André Luís Matioli, Andréa Abreu Serrado Campos, Andréia Lopes de Morais, Anna Frida Hatsue Modro, Antônio Abreu Silveira Neto, Arthur de Souza Moreira Pires, Caio Biasi Mauro, Carine Mascena Peixoto, Carize da Cruz Mercês, Carlos Alfredo Lopes de Carvalho, Charle da Silva Paiva, Daniel S. Pereira, Daniel Santos Freire, Darcet Costa Souza, David De Jong, Diego Antônio Machado Soares, Edgar Rodrigues de Araújo Neto, Eduardo Alves de Souza, Eliaber Barros Santos, Emanuel Maia, Endrigo Adonis Braga de Araújo, Erica Gomes de Lima, Érica Weinstein Teixeira, Erika Gleice Menezes do Nascimento, Fábio Adriano Santos e Silva, Fabrício Alaor Cappelari, Fabrício Chagas Sobrinho, Felipe Mendes Fontes, Francisco Ariclenes Olinto, Francisco Everton Jales da Silva, Genevile Carife Bergamo, Geraldo Aparecido Rodrigues, Geraldo Moretto, Giliola Maria Lima Casadio, Gilson Marcos Bogus, Gleidson Giordano Pinto de Carvalho, Gleydson Luiz de Oliveira Neto, Guido Laércio Bragança Castagnino, Guilherme Sampaio de Queiroz, Gustavo Porfírio Pires, Hemilly Marques da Silva, Hilton Borges Silva Neto, Hugo Thales de Souza Nunes, Ingrid Pereira Pinto Oliveira, Isadora Rodriguez Sambrana, Jean Samel Rocha, Jefferson Luiz Banderó, João Gustavo Souza Sales de Albuquerque, João Paulo de Holanda Neto, John P. Kastelic, José Carlos Vieira Guerra, Joselly Rodrigues da Costa, Jossivanio Santos de Jesus, Juliana do Nascimento Bendini, Kátia Peres Gramacho, Larissa Queiroz de Souza, Lavínia Nascimento Leoni, Lionel Segui Gonçalves, Lubiane Guimarães Cestaro, Lucas da Silva Morais, Lucas Filipe Correia Franca Dantas, Luciano Santana Serra, Lucilene de Abreu, Luís Carlos Borsuk, Luís Fernando Batista Pinto, Luiz Amilo da Silva, Luiz Arthur dos Anjos Lima, Maicon José Fogaça, Márcia Regina Cavichio Issa, Maria Emilene Correia-Oliveira, Maria Alves, Marliton Rocha Barreto, Matheus Carvalho Del Rey, Matheus José de Oliveira Costa Barbosa, Matheus Roberto da Silva, M. M. Morais, Natália Vinhal-Silva, Pâmela Tereza de Oliveira Gomes, P.M.G. Beelen, Patrick Oliveira de Sousa, Paulo Sérgio Cavalcanti Costa, Pedro Acioli de Souza, Rafael de Paula, Raiane Barbosa Mendes, Renata Valéria Regis de Sousa Gomes, Ricardo Gonçalves Santos, Roberto Junior Teixeira Nascimento, Rodrigo Diniz Silveira, Rodrigo Silva Cabral, Rodrigo de Nazaré Santos Torres, Roger Beelen, R. A. Pereira, Rômulo Augusto Guedes Rizzardo, Sabrina Aparecida Cunha, Sandro Tarcísio Celmer, Sarajane Estevan, Sebastião Lourenço de Assis Júnior, Silel Vinicius Simões Andrade Maciel, Silvio José Reis da Silva, Stephano Bismark Lopes Cavalcante Moreira, Tânia Patrícia Schafaschek, Tatiane Amaral de Barros, Tayana Holz Ruela, Thaís Menezes de Souza Vitena, Thaís Regina Bridi, Vagner Maximino Leite, Vanderlei Doniseti Acassio dos Reis, Vanessa Santos Louzado das Neves, Viviane Ferreira de Medeiros,
The objectives of this review article were to examine the dynamics of Varroa destructor infestation levels in Africanized honey bees (AHB) in Brazil, since this parasitic mite was first detected in 1977. Data from published research articles, conference proceedings, congress abstracts, and unpublished data obtained from academic researchers was included. Although mite infestations varied significantly along the years, there were no indications that varroa negatively impacted Brazilian apiculture. ...
Tópico(s): Insect and Arachnid Ecology and Behavior
2023 - Springer Science+Business Media | Apidologie

Renata Cristina Araújo Costa, Regina Santos, Luís Filipe Sanches Fernandes, Marília Carvalho de Melo, Carlos Alberto Valera, Renato Farias do Valle, Maytê Maria Abreu Pires de Melo Silva, Fernando António Leal Pacheco, Teresa Cristina Tarlé Pissarra,
Human land use land cover changes (LULCCs) can cause impacts on watershed lands and on water resources. The regions with land use conflict suffer more intense erosion processes due to their high slope and drainage density. The study intends to evaluate scenarios with an absence of land use conflict and verify if it can contribute to reductions in surface runoff, avoiding the carriage of tailings to river channels. In the study, the SWAT model was used in the hydrological modeling of the Paraopeba ...
Tópico(s): Groundwater and Watershed Analysis
2023 - Multidisciplinary Digital Publishing Institute | Water

Daniela Patrícia Salgado Terêncio, Fernando António Leal Pacheco, Renato Farias do Valle, Maytê Maria Abreu Pires de Melo Silva, Teresa Cristina Tarlé Pissarra, Marília Carvalho de Melo, Carlos Alberto Valera, Luís Filipe Sanches Fernandes,
The B1 dam of Córrego do Feijão Mine, owned by Vale, S.A. mining company and located on the Ferro-Carvão stream, collapsed and injected 2.8 Mm3 of clayey, silty, and sandy iron- and manganese-rich tailings into the Paraopeba River (Minas Gerais state, Brazil). The accident occurred on 25 January 2019 and the tailings have been co-transported with coarser natural sediment since then, being partly trapped in the Igarapé Weir reservoir located on the Paraopeba River nearly 45 km downstream the injection ...
Tópico(s): Soil erosion and sediment transport
2023 - Elsevier BV | International Journal of Sediment Research

Fernando António Leal Pacheco, Renato Farias do Valle, Maytê Maria Abreu Pires de Melo Silva, Teresa Cristina Tarlé Pissarra, Glauco de Souza Rolim, Marília Carvalho de Melo, Carlos Alberto Valera, João Paulo Moura, Luís Filipe Sanches Fernandes,
Understanding the geochemistry and contamination of rivers affected by the rupture of tailings dams is paramount to emergency water resources management. This needs the long-term monitoring of tailings, sediments and water along the river, and the understanding of how the tailings interact physically and geochemically with the natural sediments and flowing water. An effort of this kind is uncommon because of its cost and opportunity. The purpose of this study was to help filling this gap using the ...
Tópico(s): Mining and Resource Management
2023 - Elsevier BV | Applied Geochemistry

Luiz Gonzaga Esteves Vieira, Alan Carvalho Andrade, Carlos Augusto Colombo, Ana Heloneida de Araújo Moraes, Ângela Metha, Angélica Carvalho de Oliveira, Carlos Alberto Labate, Celso Luís Marino, Cláudia Barros Monteiro-Vitorello, Damares de Castro Monte, Éder Antônio Giglioti, Edna Teruko Kimura, Eduardo Romano, Eiko E. Kuramae, Eliana Gertrudes de Macedo Lemos, Elionor Rita Pereira de Almeida, Érika Cristina Jorge, Érika V. S. Albuquerque, Felipe Rodrigues da Silva, Felipe Vinecky, Haiko Enok Sawazaki, Hamza Fahmi Ali El Dorry, Helaine Carrer, Ilka N. Abreu, João A. N. Batista, João Batista Teixeira, João Paulo Kitajima, Karem Guimarães Xavier, Liziane Maria de Lima, Luís Eduardo Aranha Camargo, Luiz Filipe Protásio Pereira, Luiz Lehmann Coutinho, Manoel Victor Franco Lemos, M. R. Romano, Marcos Antônio Machado, Marcos Mota do Carmo Costa, Maria Fátima Grossi‐de‐Sá, Maria Helena S. Goldman, Maria Inês Tiraboschi Ferro, M. L. P. Tinoco, Mariana C. Oliveira, Marie‐Anne Van Sluys, Milton Massao Shimizu, Mirian Perez Maluf, M. T. S. Eira, Oliveiro Guerreiro Filho, Paulo Arruda, Paulo Mazzafera, Pilar Mariani, Regina L.B.C. de Oliveira, Ricardo Harakava, Silvia Filippi Balbao, Siu Mui Tsai, Sônia Marli Zingaretti, Suzana Neiva Santos, Walter José Siqueira, Gustavo G.L. Costa, Eduardo Fernandes Formighieri, Marcelo Falsarella Carazzolle, Gonçalo Amarante Guimarães Pereira,
Coffee is one of the most valuable agricultural commodities and ranks second on international trade exchanges. The genus Coffea belongs to the Rubiaceae family which includes other important plants. The genus contains about 100 species but commercial production is based only on two species, Coffea arabica and Coffea canephora that represent about 70 % and 30 % of the total coffee market, respectively. The Brazilian Coffee Genome Project was designed with the objective of making modern genomics resources ...
Tópico(s): Plant Virus Research Studies
2006 - SciELO | Brazilian Journal of Plant Physiology

Gabriel Henrique de Morais Fernandes, Renato Farias do Valle, Maytê Maria Abreu Pires de Melo Silva, Rafaella Gouveia Mendes, Luís Filipe Sanches Fernandes, António Fernandes, Fernando António Leal Pacheco, Teresa Cristina Tarlé Pissarra, Marília Carvalho de Melo, Carlos Alberto Valera,
Abstract Land degradation is a worldwide problem with natural and anthropogenic causes. An important anthropogenic cause of land degradation is land uses that deviate from land capability, which is the “natural” use. Despite the conscience of scientists about this issue, studies are lacking that set up a quantitative nexus between land capability and related drivers. This nexus is essential because it allows anticipating changes in the drivers that promote or recede degradation. In this study, a ...
Tópico(s): Soil Geostatistics and Mapping
2022 - Wiley | Land Degradation and Development

Polyana Pereira, Luís Filipe Sanches Fernandes, Renato Farias do Valle, Maytê Maria Abreu Pires de Melo Silva, Fernando António Leal Pacheco, Marília Carvalho de Melo, Carlos Alberto Valera, Teresa Cristina Tarlé Pissarra,
The use of tailings dams in the mining industry is recurrent and a matter of concern given the risk of collapse. The planning of tailings dam's emplacement usually attends construction design criteria and site geotechnical properties, but often neglects the risk of installing the depositional facilities in potentially unstable landscapes, namely those characterized by steep slopes and(or) high drainage densities. In order to help bridging this gap, the present study developed a framework model whereby ...
Tópico(s): Geological formations and processes
2023 - Elsevier BV | The Science of The Total Environment

Victor Hugo Sarrazin Lima, João Paulo Moura, Teresa Cristina Tarlé Pissarra, Renato Farias do Valle, Maytê Maria Abreu Pires de Melo Silva, Carlos Alberto Valera, Marília Carvalho de Melo, Luís Filipe Sanches Fernandes, Adriana Monteiro da Costa, Fernando António Leal Pacheco,
The deposits of mine tailings can be a source of groundwater contamination by metals. In this study, we simulated the concentrations of iron, manganese and aluminum in groundwater potentially affected by drainage from tailings deposits located in Brumadinho (Brazil). The aim was to verify whether the concentrations observed in the region can be attributed to these drainages. The simulation used the FREEWAT graphical interface, which incorporates the MODFLOW model, the hydraulic properties of existing ...
Tópico(s): Landfill Environmental Impact Studies
2024 - Elsevier BV | Case Studies in Chemical and Environmental Engineering

Carlos Roberto Mangussi Filho, Renato Farias do Valle, Maytê Maria Abreu Pires de Melo Silva, Rafaella Gouveia Mendes, Glauco de Souza Rolim, Teresa Cristina Tarlé Pissarra, Marília Carvalho de Melo, Carlos Alberto Valera, Fernando António Leal Pacheco, Luís Filipe Sanches Fernandes,
The rupture of a tailings dam causes several social, economic, and environmental impacts because people can die, the devastation caused by the debris and mud waves is expressive and the released substances may be toxic to the ecosystem and humans. There were two major dam failures in the Minas Gerais state, Brazil, in the last decade. The first was in 2015 in the city of Mariana and the second was in 2019 in the municipality of Brumadinho. The extent of land use and cover changes derived from those ...
Tópico(s): Soil erosion and sediment transport
2023 - Multidisciplinary Digital Publishing Institute | Sustainability
Camila Cardoso Diogo, José Arthur de Abreu Camassa, Bárbara Fonseca, Luís Maltez, José Eduardo Pereira, Vítor Filipe, Pedro Couto, Stefania Raimondo, Paulo Armada-da-Silva, Ana Colette Maurício, Artur S.P. Varejão,
Compared to rodents, sheep offer several attractive features as an experimental model for testing different medical and surgical interventions related to pathological gait caused by neurological diseases and injuries. To use sheep for development of novel treatment strategies in the field of neuroscience, it is key to establish the relevant kinematic features of locomotion in this species. To use sheep for development of novel treatment strategies in the field of neuroscience, it is crucial to understand ...
Tópico(s): Cerebral Palsy and Movement Disorders
2021 - Frontiers Media | Frontiers in Veterinary Science
Paulien Bonny, Constantijn Bogaert, Luís Filipe Abreu de Carvalho, Filip Gryspeerdt, Hasan H. Eker, Laurens Hermie, Frederik Berrevoet,
Liver trauma is common and can be treated non-operatively, through radiological embolisation, or surgically. Non-operative management (NOM) is preferred when possible, but specific criteria remain unclear. This retrospective study at a level I trauma centre assessed the evolution and outcomes of liver injury management over more than 20 years.
Tópico(s): Case Reports on Hematomas
2024 - Taylor & Francis | Acta Chirurgica Belgica

Regina Santos, Renato Farias do Valle, Maytê Maria Abreu Pires de Melo Silva, Teresa Cristina Tarlé Pissarra, Marília Carvalho de Melo, Carlos Alberto Valera, Fernando António Leal Pacheco, Luís Filipe Sanches Fernandes,
Metal and nutrient pollution, soil erosion, and alterations in climate and hydrology are prevalent issues that impact the water quality of riverine systems. However, integrated approaches to assess and isolate causes and paths of river water pollution are scarce, especially in the case of watersheds impacted by multiple hazardous activities. Therefore, a framework model for investigating the multiple sources of river water pollution was developed. The chosen study area was the Paraopeba River basin ...
Tópico(s): Groundwater and Isotope Geochemistry
2024 - Elsevier BV | Environmental Pollution

Fernando António Leal Pacheco, Victor Hugo Sarrazin Lima, Teresa Cristina Tarlé Pissarra, Renato Farias do Valle, Maytê Maria Abreu Pires de Melo Silva, Marília Carvalho de Melo, Carlos Alberto Valera, João Paulo Moura, Luís Filipe Sanches Fernandes,
The method presented in this study assesses groundwater contamination risk using a L-Matrix system approach. The L-Matrix in this case is a cartesian diagram where the XX-axis represents aquifer vulnerability (0≤V≤1) determined by the well-known DRASTIC model, and the YY-axis represents the potential hazardousness (0≤H≤1) of an activity (infrastructural development, industrial activities, livestock and agriculture) measured by a European Commission approach. The diagram is divided into four regions, ...
Tópico(s): Environmental Justice and Health Disparities
2022 - Elsevier BV | MethodsX

Rafaella Gouveia Mendes, Renato Farias do Valle, Tiago Henrique Schwaickartt Feitosa, Maytê Maria Abreu Pires de Melo Silva, Luís Filipe Sanches Fernandes, Fernando António Leal Pacheco, Teresa Cristina Tarlé Pissarra, Regina Maria Quintão Lana, Marília Carvalho de Melo, Carlos Alberto Valera,
Tailings dams' breaks are environmental disasters with direct and intense degradation of soil. This study analyzed the impacts of B1 tailings dam rupture occurred in the Ribeirão Ferro-Carvão watershed (Brumadinho, Brazil) in January 25, 2019. Soil organic carbon (SOC) approached environmental degradation. The analysis encompassed wetlands (high-SOC pools) located in the so-called Zones of Decreasing Destructive Capacity (DCZ5 to DCZ1) defined along the Ferro-Carvão's stream bed and banks after the ...
Tópico(s): Geography and Environmental Studies
2024 - Elsevier BV | The Science of The Total Environment

Victor Hugo Sarrazin Lima, Fernando António Leal Pacheco, João Paulo Moura, Teresa Cristina Tarlé Pissarra, Renato Farias do Valle, Maytê Maria Abreu Pires de Melo Silva, Carlos Alberto Valera, Marília Carvalho de Melo, Luís Filipe Sanches Fernandes,
The B1 tailings dam of Córrego do Feijão iron-ore mine of Vale SA, located in the Ferro-Carvão stream watershed (Brumadinho municipality, state of Minas Gerais, Brazil), collapsed in 25 January 2019. This accident had unprecedent water resources management impacts in the Paraopeba River basin, the parent of Ferro-Carvão stream, marked by the suspension of drinking water supply to the Metropolitan Region of Belo Horizonte, which was decided after the huge rise of turbidity and metal concentrations ...
Tópico(s): Soil erosion and sediment transport
2024 - Elsevier BV | Case Studies in Chemical and Environmental Engineering
Miguel Abreu Torres, Paula Teixeira, Rui M. Filipe, Luís Domingues, Carla I.C. Pinheiro, Henrique A. Matos,
This work is part of a study to develop a multi-scale model of a Ca-looping (CaL) post-combustion process for CO2 capture that relies on the carbonation reaction of CaO (s) and on the calcination of the resulting CaCO3 (s) to generate a stream of highly concentrated CO2 (g). The literature lacks models that combine the modelling of both reactions with a cyclic structure that accounts for sorbent deactivation and allows for a realistic estimation in the case of incomplete reactions or different reaction ...
Tópico(s): Thermal and Kinetic Analysis
2019 - Elsevier BV | Computer-aided chemical engineering/Computer aided chemical engineering

Ana Giulia Batoni, Renato Farias do Valle, Maytê Maria Abreu Pires de Melo Silva, Gabriel Henrique de Morais Fernandes, Tiago Henrique Schwaickartt Feitosa, Luís Filipe Sanches Fernandes, Glauco de Souza Rolim, Teresa Cristina Tarlé Pissarra, Carlos Alberto Valera, Marília Carvalho de Melo, Fernando António Leal Pacheco,
Since mining activities began in Brazil some 300 years ago, disasters related to tailings dams have been recorded. In 2019, the B1 dam located at Vale, S.A.'s Córrego do Feijão mine in the municipality of Brumadinho (state of Minas Gerais) collapsed, releasing a vast amount of iron ore tailings into the Ferro-Carvão stream, which spread to the Paraopeba River located 10 km downstream. This tragedy devastated around 294 hectares of the Ribeirão Ferro-Carvão watershed, including mining infrastructure, ...
Tópico(s): Remote Sensing and Land Use
2024 - Elsevier BV | Remote Sensing Applications Society and Environment
Filipa Abreu, A J Brea Hernando, Luís Filipe Goulão, Alexandra Marques‐Pinto, Amélia Branco, Ana Cerqueira, Cecília Galvão, Fábio Botelho Guedes, Maria Rosário Bronze, Wanda Viegas, Margarida Gaspar de Matos, Joana Sousa,
Aim To evaluate the adherence to the Mediterranean diet (MD) and the level of nutritional literacy (NL) among university students from different academic fields of study, within the context of the COVID-19 pandemic. Methods A total of 1114 first-year undergraduate students at the University of Lisbon, Portugal, were included in this study. A self-administered online questionnaire was applied that included questions regarding sociodemographic information, the MD measured by the PREDIMED questionnaire ( ...
Tópico(s): Mobile Health and mHealth Applications
2023 - BMJ | BMJ Nutrition Prevention & Health

João Paulo Moura, Fernando António Leal Pacheco, Renato Farias do Valle, Maytê Maria Abreu Pires de Melo Silva, Teresa Cristina Tarlé Pissarra, Marília Carvalho de Melo, Carlos Alberto Valera, Luís Filipe Sanches Fernandes, Glauco de Souza Rolim,
The modeling of metal concentrations in large rivers is complex because the contributing factors are numerous, namely, the variation in metal sources across spatiotemporal domains. By considering both domains, this study modeled metal concentrations derived from the interaction of river water and sediments of contrasting grain size and chemical composition, in regions of contrasting seasonal precipitation. Statistical methods assessed the processes of metal partitioning and transport, while artificial ...
Tópico(s): Soil erosion and sediment transport
2024 - Multidisciplinary Digital Publishing Institute | Water

Renata Cristina Araújo Costa, Regina Santos, Luís Filipe Sanches Fernandes, Fernando António Leal Pacheco, Marília Carvalho de Melo, Carlos Alberto Valera, Renato Farias do Valle, Maytê Maria Abreu Pires de Melo Silva, Teresa Cristina Tarlé Pissarra,
The Soil and Water Assessment Tool (SWAT) was used to assess total phosphorus concentrations (TOT-P) and fluxes (TOT_P) in the Paraopeba River basin, located in the state of Minas Gerais, Brazil, following the collapse of tailings dam B1 in Brumadinho. The model was calibrated and validated for periods before (2000–2018) and after (2019–2021) the collapse of Brumadinho dam in 25 January 2019, with great accuracy measured by various performance indicators (e.g., R2 ≈ 0.8). The flow of phosphorus-containing ...
Tópico(s): Mine drainage and remediation techniques
2024 - Elsevier BV | Case Studies in Chemical and Environmental Engineering

Mariana Santos, Bruno Cunha, Vasco Sousa Abreu, Suely Fazio Ferraciolli, Luís Filipe de Souza Godoy, Rodrigo Watanabe Murakoshi, Lázaro Luís Faria do Amaral, Carla Conceição,
Abstract Skull lesions in pediatric population are common findings on imaging and sometimes with heterogeneous manifestations, constituting a diagnostic challenge. Some lesions can be misinterpreted for their aggressiveness, as with larger lesions eroding cortical bone, containing soft tissue components, leading to excessive and, in some cases, invasive inappropriate etiological investigation. In this review, we present multiple several conditions that may present as skull lesions or pseudolesions, ...
Tópico(s): Head and Neck Surgical Oncology
2023 - Wiley | Journal of Neuroimaging
Conceição Filipe de Magalhães, Luís Picado-Santos, João de Abreu e Silva,
Research is still needed to model autonomous vehicles (AVs) to faithfully reflect their behaviours and the reactions of human drivers. This study used a microscopic traffic simulation approach to assess the impact of AVs on both traffic performance and safety performance of a heavily congested motorway according to two traffic management strategies, reserved lane and shared space, materialised in two scenarios corresponding to 25% and 50% AVs fleet penetration. We found that the shared space traffic ...
Tópico(s): Autonomous Vehicle Technology and Safety
2023 - Elsevier BV | Transportation research procedia