Search Results - "Silvio Hamacher"

Evolving changes in mortality of 13,301 critically ill adult patients with COVID-19 over 8 months by Kurtz, Pedro, Bastos, Leonardo S. L., Dantas, Leila F., Zampieri, Fernando G., Soares, Marcio, Hamacher, Silvio, Salluh, Jorge I. F., Bozza, Fernando A.

“…Purpose Clinical characteristics and management of COVID-19 patients have evolved during the pandemic, potentially changing their outcomes. We analyzed the…”
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Epidemiology of sepsis in Brazil: Incidence, lethality, costs, and other indicators for Brazilian Unified Health System hospitalizations from 2006 to 2015 by Quintano Neira, Ricardo Alfredo, Hamacher, Silvio, Japiassú, André Miguel

“…Sepsis is considered a major worldwide health burden, with high mortality and associated costs. Health indicators are essential to define strategies to improve…”
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Public hospitalizations for stroke in Brazil from 2009 to 2016 by Dantas, Leila F, Marchesi, Janaina F, Peres, Igor T, Hamacher, Silvio, Bozza, Fernando A, Quintano Neira, Ricardo A

“…Stroke is the third major cause of death in the world and the second in Brazil. The purpose of this work was to assess the stroke-related hospitalization,…”
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Using data envelopment analysis to perform benchmarking in intensive care units by Antunes, Bianca B P, Bastos, Leonardo S L, Hamacher, Silvio, Bozza, Fernando A

“…Studies using Data Envelopment Analysis to benchmark Intensive Care Units (ICUs) are scarce. Previous studies have focused on comparing efficiency using only…”
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App-based symptom tracking to optimize SARS-CoV-2 testing strategy using machine learning by Dantas, Leila F, Peres, Igor T, Bastos, Leonardo S L, Marchesi, Janaina F, de Souza, Guilherme F G, Gelli, João Gabriel M, Baião, Fernanda A, Maçaira, Paula, Hamacher, Silvio, Bozza, Fernando A

“…Tests are scarce resources, especially in low and middle-income countries, and the optimization of testing programs during a pandemic is critical for the…”
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Impact of the first year of COVID-19 vaccination strategy in Brazil: an ecological study by Aguilar, Soraida, Bastos, Leonardo S L, Maçaira, Paula, Baião, Fernanda, Simões, Paulo, Cerbino-Neto, José, Ranzani, Otavio, Hamacher, Silvio, Bozza, Fernando A

“…ObjectivesNo consensus exists about the best COVID-19 vaccination strategy to be adopted by low-income and middle-income countries. Brazil adopted an age-based…”
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Managing product variety in emerging markets by Felipe Scavarda, Luiz, Reichhart, Andreas, Hamacher, Silvio, Holweg, Matthias

“…Purpose - The need for an efficient provision of product variety has been widely established as a means of competing in the marketplace, yet previous studies…”
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VacinaMare campaign: addressing vaccine inequity in socially vulnerabilised communities by Batista-da-Silva, Amanda A., Bastos, Leonardo S.L., Arouca, Luna E., Gonzaga-da-Silva, Thiago W., Hamacher, Silvio, Bozza, Fernando A., Ranzani, Otavio T.

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Effectiveness of a multicomponent intervention to face the COVID-19 pandemic in Rio de Janeiro’s favelas: difference-in-differences analysis by Batista-da-Silva, Amanda de Araujo, Moraes, Camila Barros, Bozza, Helena Rodrigues, Bastos, Leonardo dos Santos Lourenço, Ranzani, Otavio T, Hamacher, Silvio, Bozza, Fernando Augusto

“…IntroductionFew community-based interventions addressing the transmission control and clinical management of COVID-19 cases have been reported, especially in…”
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What we talk about when we talk about COVID-19 vaccination campaign impact: a narrative review by Hastenreiter Filho, Horácio N, Peres, Igor T, Maddalena, Lucas G, Baião, Fernanda A, Ranzani, Otavio T, Hamacher, Silvio, Maçaira, Paula M, Bozza, Fernando A

“…The lack of precise definitions and terminological consensus about the impact studies of COVID-19 vaccination leads to confusing statements from the scientific…”
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Seroepidemiology of SARS-CoV-2 on a partially vaccinated island in Brazil: Determinants of infection and vaccine response by Cerbino-Neto, José, Peres, Igor Tona, Varela, Margareth Catoia, Brandão, Luciana Gomes Pedro, de Matos, Juliana Arruda, Pinto, Luiz Felipe, da Costa, Marcellus Dias, Garcia, Márcio Henrique de Oliveira, Soranz, Daniel, Maia, Maria de Lourdes de Sousa, Krieger, Marco Aurélio, da Cunha, Rivaldo Venâncio, Camacho, Luiz Antonio Bastos, Ranzani, Otavio, Hamacher, Silvio, Bozza, Fernando Augusto, Penna, Gerson Oliveira

“…A vaccination campaign targeted adults in response to the pandemic in the City of Rio de Janeiro. We aimed to evaluate the seroprevalence of SARS-CoV-2…”
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Progressão dos casos confirmados de COVID-19 após implantação de medidas de controle by Bianca Brandão de Paula Antunes, Igor Tona Peres, Fernanda Araújo Baião, Otavio Tavares Ranzani, Leonardo dos Santos Lourenço Bastos, Amanda de Araújo Batista da Silva, Guilherme Faveret Garcia de Souza, Janaina Figueira Marchesi, Leila Figueiredo Dantas, Soraida Aguilar Vargas, Paula Maçaira, Silvio Hamacher, Fernando Augusto Bozza

“…RESUMO Objetivo: Analisar as medidas adotadas por países que demonstraram controle sobre a transmissão da doença pelo novo coronavírus 2019 (COVID-19) e também…”
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A novel exact formulation for parallel machine scheduling problems by Carrilho, Luana M., Oliveira, Fabricio, Hamacher, Silvio

“…Machine scheduling is one of the most studied problems due to its technical challenges and prevalence in real life. In the literature, continuous- and…”
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A data-driven optimization model for the workover rig scheduling problem: Case study in an oil company by Santos, Iuri Martins, Hamacher, Silvio, Oliveira, Fabricio

“…After completion, oil wells often require intervention services to increase productivity, correct oil flow losses, and solve mechanical failures. These…”
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Scheduling pipe laying support vessels with non-anticipatory family setup times and intersections between sets of operations by Abu-Marrul, Victor, Martinelli, Rafael, Hamacher, Silvio

“…In this paper, we deal with a problem that arises from the oil industry with the need to schedule a pipe laying support vessel fleet responsible for connecting…”
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Dimensionamento da frota de navios de derivados claros para cabotagem: proposta de modelo de otimização by Vieira, André Augusto Soares, Hamacher, Silvio, Santos, Iuri Martins

“…O setor de Óleo e Gás depende fortemente do transporte marítimo para movimentar grandes volumes de petróleo e derivados. Neste sentido, este artigo propõe um…”
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A Systematic Literature review for the rig scheduling problem: Classification and state-of-the-art by Santos, Iuri Martins, Hamacher, Silvio, Oliveira, Fabricio

“…•Proposes a taxonomy for the Rig Scheduling Problem (RSP) addressing its key features.•130 articles were reviewed, selected from Web of Science, Scopus and…”
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Design of a hydrogen supply chain with uncertainty by Nunes, Paula, Oliveira, Fabricio, Hamacher, Silvio, Almansoori, Ali

“…The use of fuels with low environmental impact has been recently highlighted in the media. In this context, the use of hydrogen as a fuel has been considered…”
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A stochastic programming approach to the physician staffing and scheduling problem by Marchesi, Janaina F., Hamacher, Silvio, Fleck, Julia L.

“…•Integrated solution for physician staffing and scheduling in Emergency Departments.•Two-stage stochastic model with fixed recourse minimizes patient queue…”
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Matheuristics for a parallel machine scheduling problem with non-anticipatory family setup times: Application in the offshore oil and gas industry by Abu-Marrul, Victor, Martinelli, Rafael, Hamacher, Silvio, Gribkovskaia, Irina

“…•Introduction of a new batch scheduling formulation with parallel machines.•Development of two MIP-neighborhoods based on batch scheduling…”
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