Rafael Buback Teixeira

ORCID: 0000-0002-7216-0199
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About
Contact & Profiles
Research Areas
  • Advanced Graph Theory Research
  • Limits and Structures in Graph Theory
  • Complexity and Algorithms in Graphs
  • Education and Digital Technologies
  • graph theory and CDMA systems
  • Maritime Ports and Logistics
  • Graph Labeling and Dimension Problems
  • Law, logistics, and international trade
  • Technology Adoption and User Behaviour
  • Business and Management Studies
  • Graph theory and applications
  • Advanced biosensing and bioanalysis techniques
  • Genomics and Chromatin Dynamics
  • Big Data and Business Intelligence
  • Urban and Freight Transport Logistics
  • Optimization and Search Problems
  • Economic and Technological Innovation
  • Competitive and Knowledge Intelligence
  • Urban Transport Systems Analysis
  • Cellular Automata and Applications
  • Impact of AI and Big Data on Business and Society
  • Vehicle License Plate Recognition
  • Logistics and Infrastructure Analysis
  • Respiratory and Cough-Related Research
  • Academic Research in Diverse Fields

Fundação de Amparo à Pesquisa do Espírito Santo
2024

International Foundation for Electoral Systems
2016-2023

Instituto Federal do Espírito Santo
2019-2023

Centro Hospitalar de Vila Nova de Gaia
2023

Universidade Federal Rural do Rio de Janeiro
2010-2019

Universidade Federal do Rio de Janeiro
2004-2017

Universidade Federal Fluminense
2012

Universidade de São Paulo
2012

Universidade do Estado do Rio de Janeiro
2000

A tomada de decisões econômicas depende uma compreensão aprofundada do Valor Dinheiro no Tempo (VDT) e sua aplicação na análise viabilidade econômica. No entanto, a ausência educação financeira compromete capacidade indivíduos organizações em lidar com conceitos fundamentais, resultando inadequadas riscos financeiros elevados. Este estudo tem como objetivo analisar relação entre o VDT, destacando falta desse conhecimento pode impactar negativamente sustentabilidade econômica projetos...

10.55905/cuadv17n3-028 article PT cc-by-nc Cuadernos de Educación y Desarrollo 2025-03-13

10.1016/j.dam.2010.03.015 article EN publisher-specific-oa Discrete Applied Mathematics 2010-07-23

Abstract A sandwich problem for property π asks whether there exists a graph of given pair graphs which has the desired Graph problems were first defined in context Computational Biology as natural generalizations recognition problems. We contribute to study complexity by considering Helly and complementary classes. obtain class finite family minimal forbidden subgraphs is NP-complete. clique-Helly when its cliques satisfies property. hereditary all induced are clique-Helly. The clique...

10.1007/bf03192558 article EN cc-by Journal of the Brazilian Computer Society 2008-06-01

10.1016/j.endm.2009.11.003 article EN Electronic Notes in Discrete Mathematics 2009-12-01

A sandwich problem for property Π asks whether there exists a graph of given pair graphs which has the desired Π. Graph problems were first defined in context Computational Biology as natural generalizations recognition problems. We contribute to study complexity by considering Helly and complementary classes. obtain class finite family minimal forbidden subgraphs is NP-complete. clique-Helly when its cliques satisfies property. hereditary all induced are clique-Helly. The clique...

10.1590/s0104-65002008000200004 article EN cc-by-nc Journal of the Brazilian Computer Society 2008-01-01

Este artigo trata do problema integrado de escolha cargas e reposicionamento contêineres vazios no transporte marítimo, visando maximizar a receita total. O é modelado como fluxo em rede multiproduto, possibilitando considerar restrições encontradas na prática, tais horizonte planejamento longo prazo; diferentes tipos contêineres; múltiplos navios rotas suas respectivas programações; capacidades dos termos número máximo cheios por tipo, peso total, para cada rota trecho entre dois portos,...

10.4237/transportes.v20i1.442 article EN cc-by Transportes 2012-04-30

A síndrome poliglandular autoimune tipo I (SPA-I) é uma doença autossômica recessiva rara, com destruição de tecido endócrino imuno-mediada. O diagnóstico firmado na presença pelo menos duas das seguintes manifestações maiores: candidíase, hipoparatireoidismo e Doença Addison. Outras clínicas podem estar presentes, incluindo hipogonadismo hipergonadotrófico, hepatite crônica ativa, gastrite atrófica, má absorção da tireóide. objetivo desse trabalho foi descrever um caso Síndrome...

10.36557/2674-8169.2024v6n11p847-853 article PT cc-by Brazilian Journal of Implantology and Health Sciences 2024-11-07

Este artigo tem como objetivo explorar técnicas aplicadas à bateria, investigando sua adaptação música popular brasileira e relevância no desenvolvimento educacional, técnico expressivo de músicos. A pesquisa utiliza uma abordagem exploratório-descritiva, combinada com análise qualitativa performances ao vivo gravações, destacando padrões que demonstram a aplicabilidade demonstração das contexto cultural pedagógico. Os resultados indicam essas práticas potencializam performance, ampliando as...

10.54033/cadpedv21n13-403 article PT cc-by-nc Caderno Pedagógico 2024-12-26

International studies have focused on the use of information and communication technologies (ICTs) in micro small business sector. Micro enterprises (MSEs) sustain a fundamental role Brazilian international economic scenario, contributing substantially to social development their countries. Based theoretical motivation founded need understand psychosocial factors that precede media marketing its impact context businesses, as well make comparisons with correlated studies, this study aimed...

10.47682/2675-6552.a2023v1n1p44-63 article EN cc-by-nc-nd RINTERPAP - Revista Interdisciplinar de Pesquisas Aplicadas 2023-06-26

10.1016/j.endm.2005.06.093 article EN Electronic Notes in Discrete Mathematics 2005-10-01

This paper evaluates the productive structure of State Espírito Santo using methodology economic complexity. Since falls in 2015 and 2016, recovery Brazilian economy has been disappointing. fact is correlated with process early deindustrialization economy. In Santo, whose development model fifty years old, complexity points out that it will be necessary to rethink public policies for regional development. proposes a gradualist strategy based on international literature process.

10.47682/2675-6552.v1n1p1-11 article EN cc-by-nc-nd RINTERPAP - Revista Interdisciplinar de Pesquisas Aplicadas 2020-09-25

10.1016/j.endm.2013.10.007 article EN Electronic Notes in Discrete Mathematics 2013-11-01

Competition in markets is increasingly present and fierce on the world stage. Therefore, one of main difficulties any company that operates retail sector to have control balance stock without problems. The objective this case study map most common inventory management tools literature, addition suggesting appropriate model for critical product comparing it with currently used a microenterprise branch, collaborating keep constant, bringing greater stability its management. This based analysis...

10.47682/2675-6552.a2022v1n2p54-71 article EN cc-by-nc-nd RINTERPAP - Revista Interdisciplinar de Pesquisas Aplicadas 2023-01-20

10.1016/j.endm.2004.06.035 article EN Electronic Notes in Discrete Mathematics 2004-12-01

Em face da grave crise que se instalou em todo o mundo, dada a chegada pandemia COVID-19, quase todos os países têm adotado medidas de enfrentamento ao coronavírus basicamente usando estratégias distanciamento social. Essas afetam diretamente atividade econômica e preocupação com efeitos negativos (principalmente sobre renda do trabalhador emprego) tem levado muitos governos adotar para mitigar paralisação das atividades econômicas afetam, graus diferentes, indústria, comércio, serviços...

10.36524/ric.v6i1.648 article PT cc-by Revista Ifes Ciência 2020-06-13

In the discrete event simulation discipline, student learns that conceptual aspects of a system modeling to be simulated are essential for success project. As one initial steps, understanding elements and their relationships, through mechanics, allows better absorption abstract concepts related facilitates this understanding. The Three Phase Method, with representation based on Activity Cycle Diagram (ACD), consists mechanic, easy assimilate. Thus, we present ACD GAME 3D, serious digital...

10.47682/2675-6552.v1n1p44-60 article EN cc-by-nc-nd RINTERPAP - Revista Interdisciplinar de Pesquisas Aplicadas 2020-09-25

Este artigo analisa a interação universidade-indústria no Estado do Espírito Santo. É destacado o papel desempenhado pelos Grupos de Pesquisa das Engenharias entre os anos 2000 2010, com base nos dados Diretório dos CNPq, opção Plano Tabular. A análise mostra que não foi expressiva, apesar da reorganização e expansão sistema local Ciência, Tecnologia inovação (C,T&I). ressaltado também contribuição escolas engenharia é mais para formação força trabalho geração conhecimento as interações...

10.14488/1676-1901.v16i4.2355 article PT cc-by Revista Produção Online 2016-12-15

We consider the sandwich problem, a generalization of recognition problem introduced by Golumbic and Shamir (1993), with respect to classes graphs defined excluding induced subgraphs. The Π graph asks, for pair G1 = (V, E1) G2 E2) E1 ⊆ E2, whether there exists G E) E E2 that satisfies property Π. being H-free, where H is fixed graph. Using new variant SAT we present general framework establish NP-completeness several H-free which generalizes previous strategy class Hereditary clique-Helly...

10.1016/j.entcs.2019.08.035 article EN Electronic Notes in Theoretical Computer Science 2019-08-01

This article analyzed the existing relationships between variables present in Unified Theory of Acceptance and Use Technology - UTAUT, context using social network Facebook as a technology to support studies among students Undergraduate Course Business Administration at Federal Institute Espírito Santo IFES Guarapari Campus. To achieve its purpose, after collecting quantitative data, structural equation modeling was used an analysis tool method Partial Least Squares PLS-SEM. The results...

10.47682/2675-6552.v1n1p61-72 article EN cc-by-nc-nd RINTERPAP - Revista Interdisciplinar de Pesquisas Aplicadas 2020-09-25
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