Industrial and Manufacturing Engineering, Business, Management and Accounting, Health Policy, Strategy and Management
21
Scopus Publications
363
Scholar Citations
10
Scholar h-index
11
Scholar i10-index
Scopus Publications
Mapping Quantum Computing Techniques for NP-Hard Problems in Operations Management and Operations Research Daniel Bouzon Nagem Assad, Patricia Gomes Ferreira da Costa, Thaís Spiegel, Hélcio de Oliveira Rocha Engineering Reports, 2026 This study examines the fragmented and rapidly evolving body of knowledge on the application of quantum computing to NP‐hard decision problems in Operations Management (OM) and Operations Research (OR). It aims to systematically map how quantum optimization approaches are formulated and applied across core OM/OR problem classes, highlighting current advances and unresolved challenges for research and practice. A systematic mapping review was conducted using peer‐reviewed studies indexed in Scopus and Web of Science from 2014 to 2026. The literature was classified by problem type, mathematical formulation, quantum technique, and application domain, with attention to the alignment between quantum models and established OM/OR decision frameworks. The review reveals a strong predominance of QUBO‐based formulations and annealing‐oriented approaches, mainly applied to logistics, manufacturing, and financial optimization problems. Applications remain largely exploratory, with limited empirical validation, weak theoretical integration with OM/OR decision‐making models, and persistent challenges related to scalability and hybrid quantum‐classical performance. Only a small subset of studies demonstrates how quantum formulations can support real‐world scheduling and resource coordination problems. This study proposes an analytical framework linking quantum optimization paradigms to canonical OM/OR NP‐hard problem classes, identifying key research gaps and methodological tensions to support more theory‐driven and empirically grounded future applications, especially in complex decision environments.
Comparing the current short-term cancer incidence prediction models in Brazil with state-of-the-art time-series models Daniel Bouzon Nagem Assad, Patricia Gomes Ferreira da Costa, Thaís Spiegel, Javier Cara, Miguel Ortega-Mier, et al. Scientific Reports, 2024 The World Health Organization has highlighted that cancer was the second-highest cause of death in 2019. This research aims to present the current forecasting techniques found in the literature, applied to predict time-series cancer incidence and then, compare these results with the current methodology adopted by the Instituto Nacional do Câncer (INCA) in Brazil. A set of univariate time-series approaches is proposed to aid decision-makers in monitoring and organizing cancer prevention and control actions. Additionally, this can guide oncological research towards more accurate estimates that align with the expected demand. Forecasting techniques were applied to real data from seven types of cancer in a Brazilian district. Each method was evaluated by comparing its fit with real data using the root mean square error, and we also assessed the quality of noise to identify biased models. Notably, three methods proposed in this research have never been applied to cancer prediction before. The data were collected from the INCA website, and the forecast methods were implemented using the R language. Conducting a literature review, it was possible to draw comparisons previous works worldwide to illustrate that cancer prediction is often focused on breast and lung cancers, typically utilizing a limited number of time-series models to find the best fit for each case. Additionally, in comparison to the current method applied in Brazil, it has been shown that employing more generalized forecast techniques can provide more reliable predictions. By evaluating the noise in the current method, this research shown that the existing prediction model is biased toward two of the studied cancers Comparing error results between the mentioned approaches and the current technique, it has been shown that the current method applied by INCA underperforms in six out of seven types of cancer tested. Moreover, this research identified that the current method can produce a biased prediction for two of the seven cancers evaluated. Therefore, it is suggested that the methods evaluated in this work should be integrated into the INCA cancer forecast methodology to provide reliable predictions for Brazilian healthcare professionals, decision-makers, and oncological researchers.
Pull processes in health care: a systematic literature review Rafael Consentino de la Vega, Gustavo Oliveira Pinto, Fatima Faria Ribeiro, Thaís Spiegel Gestao E Producao, 2022 The lean production paradigm was first adopted by the automobile industry and has been progressively adapted and adopted by several other sectors. Health services are, in general, co-created by users. This poses a logical challenge when applying one of the principles of the lean production paradigm: the establishment of pulled processes. This article investigates how pull processes have been adapted for lean production in healthcare (lean healthcare). A bibliometric analysis of 267 articles on lean healthcare research, published between 2004 and 2021, is presented in this article. A qualitative review of 233 articles is also presented. Most articles presented in this study were published after 2012, and publications and citations are primarily from the US, Brazil, and the UK. 39 articles pertain to an application of the concept, but most of the articles refer to pulling intermediate products, which are not subject to the aforementioned logical challenge. Only 8 articles effectively discuss the pulling of the flow of users. The main conclusion is that pulling has a distinct objective when applied to health care: the goal is not exactly the elimination of queues (the equivalents of intermediate stocks) but the elimination of idleness in downstream resources with limited capacity.
Operations project and management in trauma centers: The case of Brazilian units Thais Spiegel, Daniel Bouzon Nagem Assad Hospital Management and Emergency Medicine Breakthroughs in Research and Practice, 2020 Topic of discussions over the last decades, the literature related to the care of patients suffering from poly-trauma, under the assistance point of view, is sufficiently consolidated concerning to the adoption of best practices, what, usually are conducted and disseminated by accrediting organizations. However, expanding the search frontier beyond the assistance dimension, it's noticed the divergences between the recent researches or theoretical shortcomings regarding to the design and management of these operations. In face of this finding, noticed from a literature review in the most important bases of operations management and health, it's adopted a conceptual model which covers relevant elements of the project of an operation, such as: strategy, capacity, human resources, incentive systems, organizational structure and decision making; in order to systematize the current stage of the field, highlighting the differences between recent studies and proposing a set of practices and premises, which are necessary for the operationalization of the proposed model.
The processing chain of sterilized material from the health units of Rio de Janeiro county: Analysis and proposition of scenarios Supply Chain Management Applications for Manufacturing and Service Industries, 2016
Supply chain integration researches: An overview of the field International Journal of Supply Chain Management, 2014
RECENT SCHOLAR PUBLICATIONS
Mapping Quantum Computing Techniques for NP‐Hard Problems in Operations Management and Operations Research DBN Assad, PGF da Costa, T Spiegel, HO Rocha Engineering Reports 8 (2), e70604 , 2026 2026 Citations: 1
Precision and Accuracy Management for PROMs: A Model for Data Integrity in Value-Based Healthcare T Spiegel, DBN Assad Responsible Analytics for Superior Health Quality Outcomes, 307-336 , 2026 2026
Value-based healthcare and process improvement in the haemodynamic sector: An integrated management model for cardiovascular care CS Lunardi, L Ludwig Nigri, E Malta de Carvalho, FN Albuquerque, ... International Journal of Healthcare Management, 1-11 , 2025 2025
Design, Gestão e Inovação AR de Oliveira, AS Monat, DS da Silva Jr, P Zöhrer, T Spiegel DAT Journal 9 (4), 282-300 , 2024 2024
O uso de modelos e técnicas de UX na criação de dashboards de BI: uma revisão sistemática da literatura F de Oliveira Santoro, T Spiegel, DS da Silva Júnior LUMEN ET VIRTUS 15 (42), 7017-7035 , 2024 2024 Citations: 2
Modelo para apoiar a criação de uma unidade centralizadora de esterilização em uma rede de hospitais no Brasil T Spiegel PUC-Rio , 2024 2024
Comparing the current short-term cancer incidence prediction models in Brazil with state-of-the-art time-series models D Bouzon Nagem Assad, P Gomes Ferreira da Costa, T Spiegel, J Cara, ... Scientific Reports 14 (1), 4566 , 2024 2024 Citations: 5
ENGENHARIA DE PROCESSO DE NEGÓCIO E LEAN HEALTHCARE APLICADOS A UMA POLICLÍNICA MUNICIPAL RLC FARIAS, A SILVA, T SPIEGEL, D DOS SANTOS DE ADMINISTRAÇÃO EM SAÚDE Учредители: Associacao Brasileira de Medicina … , 2024 2024
AVALIAÇÃO DA MATURIDADE DAS ORGANIZAÇÕES DE SAÚDE EM RELAÇÃO A GESTÃO DA QUALIDADE: UM ESTUDO PRÁTICO RLC FARIAS, T SPIEGEL DE ADMINISTRAÇÃO EM SAÚDE Учредители: Associacao Brasileira de Medicina … , 2024 2024
May value-based healthcare practices contribute to comprehensive care for cancer patients? A systematic literature review ACP de Vasconcelos Silva, BM Araujo, T Spiegel, A da Cunha Reis Journal of cancer policy 34, 100350 , 2022 2022 Citations: 21
(PT-BR)-Processos puxados em saúde: uma revisão sistemática da literatura RC Vega, GO Pinto, FF Ribeiro, T Spiegel Gestão & Produção 29, e1921 , 2022 2022
Pull processes in health care: a systematic literature review RC Vega, GO Pinto, FF Ribeiro, T Spiegel Gestão & produção 29, e1921 , 2022 2022 Citations: 8
How to increase access to kidney transplantation: the analysis of a Brazilian public hospital through operations management ACPDV Silva, T Spiegel, LF Scavarda, ADC Reis International Journal of Services and Operations Management 41 (4), 404-430 , 2022 2022
Plano de Contingência para Falhas no Sistema de Informação de uma Unidade de Emergência: Uma Abordagem de Gestão de Operações DP de Oliveira, ACP de Vasconcelos Silva, LCF Ramos, ... Revista Eletrônica Perspectivas da Ciência e Tecnologia-ISSN: 1984-5693 13 , 2021 2021 Citations: 2
Planning Intensive Care Resources: A Forecast and Simulation Approach Due COVID-19 Pandemic in Rio de Janeiro City DBN Assad, J Cara, M Ortega-Mier, T Spiegel, LCF Ramos International Joint conference on Industrial Engineering and Operations … , 2021 2021 Citations: 1
Comparing Scheduling Appointment Rules Performance In Health Care Units: A Discrete Event Simulation Approach TN Klojda, A de Fortuna, BM Araujo, DBN Assad, T Spiegel Problems of Management in the 21st Century 16 (1), 28 , 2021 2021 Citations: 1
Análise por simulação de melhoria de processos na entrada de unidade de atenção primária de saúde R Vega, T Klojda, R Alvim, T Spiegel Revista Eletrônica Gestão e Saúde 12 (1), 92-107 , 2021 2021
Avaliação da maturidade das organizações de saúde em relação a gestão da qualidade: um estudo prático LCF Ramos, T Spiegel Revista de Administração em Saúde 20 (81) , 2020 2020
Issues in healthcare supply chain management: from literature to practice JRB Da Conceição, T Spiegel, ACP de Vasconcelos Silva, ... International Journal of Supply Chain Management 9 (2), 18-27 , 2020 2020 Citations: 13
Engenharia de processo de negócio e lean healthcare aplicados a uma policlínica municipal LCF Ramos, ACP de Vasconcelos Silva, T Spiegel, DC dos Santos Revista de Administração em Saúde 20 (78) , 2020 2020
MOST CITED SCHOLAR PUBLICATIONS
Gestão organizacional: o desafio da construção do modelo de gestão AT Pagliuso, R Cardoso, T Spiegel Saraiva , 2010 2010 Citations: 80
May value-based healthcare practices contribute to comprehensive care for cancer patients? A systematic literature review ACP de Vasconcelos Silva, BM Araujo, T Spiegel, A da Cunha Reis Journal of cancer policy 34, 100350 , 2022 2022 Citations: 21
Improving emergency department resource planning: a multiple case study D Bouzon Nagem Assad, T Spiegel Health systems 9 (1), 2-30 , 2020 2020 Citations: 19
A tomada de decisão diante da racionalidade limitada: revisão da literatura. T Spiegel, HM Caulliraux http://www. ontopsicologia. org. br/publicacoes/artigos-em-periodicos , 2013 2013 Citations: 19
Best practices in implementing a project management office: a systematic review of the literature GO Pinto, L Mello, T Spiegel Sistemas & Gestão 14 (4), 448-463 , 2019 2019 Citations: 17
UMA INVESTIGAÇÃO DO USO DE MODELOS DE REFERÊNCIA PARA CONSTRUÇÃO DE MODELOS DE GESTÃO R Cardoso, T Spiegel, HM Caulliraux, A Proença XXVII Encontro Nacional de Engenharia de Produção , 2008 2008 Citations: 15
Issues in healthcare supply chain management: from literature to practice JRB Da Conceição, T Spiegel, ACP de Vasconcelos Silva, ... International Journal of Supply Chain Management 9 (2), 18-27 , 2020 2020 Citations: 13
Gestão de materiais hospitalares: uma proposta de melhoria de processos aplicada em hospital universitário LCF Ramos, T Spiegel, DBN Assad Revista de Administração em Saúde 18 (70) , 2018 2018 Citations: 13
An overview of cognition roles in decision-making T Spiegel Encyclopedia of Business Analytics and Optimization, 74-84 , 2014 2014 Citations: 12
Developing an organizational reference model by selecting and integrating multiple references T Spiegel, HM Caulliraux Journal of Management Research 4 (1), 1 , 2012 2012 Citations: 11
Influences of personal experience in decision-making T Spiegel Exploring the influence of personal values and cultures in the workplace, 76-97 , 2017 2017 Citations: 10
Projeto e gestão de operações em saúde T Spiegel, HM Caulliraux, FE Treistman, GE Guimarães, GLR Vaccaro, ... Tópicos emergentes e desafios metodológicos em engenharia de produção: casos … , 2016 2016 Citations: 9
Revealing factors affecting strategy implementation in HEIs–a case study in a Brazilian university DP Lacerda, HM Caulliraux, T Spiegel International Journal of Management in Education 8 (1), 54-77 , 2014 2014 Citations: 9
Contribuições das ciências cognitivas à gestão de operações: análise do impacto da experiência nas decisões do gestor de operações T Spiegel 2013 Citations: 9
Pull processes in health care: a systematic literature review RC Vega, GO Pinto, FF Ribeiro, T Spiegel Gestão & produção 29, e1921 , 2022 2022 Citations: 8
Efeitos da experiência no processo decisório: uma investigação a partir dos elementos da cognição T Spiegel, HM Caulliraux Ciências & Cognição 21 (1) , 2016 2016 Citations: 8
Para além do VPL e da TIR: Aplicação de métodos analíticos estocásticos à avaliação de projetos–estudo de cenários de negócios do mercado de cervejas artesanais RJ Souza, DS Silva Júnior, T Spiegel Revista de Contabilidade do Mestrado em Ciências Contábeis da UERJ 21 (3), 74-94 , 2017 2017 Citations: 7
Supply chain integration researches: an overview of the field T Spiegel, PEM Vasconcelos, DL Porto, HM Caulliraux International Journal of Supply Chain Management 3 (1), 12-20 , 2014 2014 Citations: 7
O processo cognitivo e a tomada de decisão: articulações necessárias T Spiegel 2013 Citations: 6
Modelagem da gestão organizacional: uma abordagem utilizando múltiplos modelos de referência para qualidade e excelência R Cardoso, T Spiegel, HM Caulliraux, A Proença 2008 Citations: 6
