Este trabalho apresenta um estudo da utilização da robótica no âmbito educacional superior, como ferramenta de apoio ao ensino de disciplinas de programação que motive e estimule o interesse dos alunos por meio das práticas mais dinâmicas sugeridas por esta abordagem. A avaliação desta abordagem foi realizada em uma universidade federal brasileira com alunos do primeiro e segundo períodos nas disciplinas de programação.
Goal: Propose hybrid heuristics combining VNS and Tabu Search (TS) for adding adaptability to University Course Timetabling Problem (UCTTP) resolution. Design / Methodology / Approach: VNS and TS metaheuristics were used isolated and in combination in order to verify which shape acquired the best solutions. Those heuristics were verified using constraints found at two undergraduate courses of Federal Fluminense University. Effectiveness is verified by comparing them with solutions manually elaborated by undergraduate course coordinators. Results: The computational results showed the efficiency of the hybrid VNS-TS heuristics, with emphasis on the heuristic VNS-TS1, which uses tabu search as local search method. Practical implications: The hybrid heuristic VNS-TS1 has been in use since the first half of 2019 by some of UFF undergraduate courses coordinations. Even though each university has specific constraints on its timetable, the use of the proposed heuristics is possible because it has been developed using the framework FINESS that allows for the easy insertion and removal of constraints. Originality / Value: We have the following innovative contributions: Development of heuristics with a high degree of adaptation to the needs of educational institutions; Two proposed VNS-TS heuristics; Proposed VND-TS improvement method.
Allowing information exchange and cooperation among distributed and heterogeneous systems is important in the eHealth field. Development of interoperability standards and an approach based on Electronic Health Record (EHR) led to a significant evolution in this field. However, it has not yet been possible to find technical interoperability solutions among EHR systems for public health organizations in Brazil. In recent years, many researchers have faced the interoperability problem and have provided solutions, like interoperability models or architectures, based on different standards and technologies. This work presents a study of architectures proposed in the literature and selects one of them, using the AHP method, to support technical interoperability among EHR systems in Brazilian public health organizations. The architecture was selected according to the current scenario of eHealth in Brazil and in compliance with Brazilian legislation. A scenario of use of this architecture is also presented, where it is possible to perceive the feasibility of its application in the context of the Brazilian public health organizations. This application allows providing technical interoperability among isolated EHR systems that currently operate in health organizations and the sharing of EHR between them. It also shows that the architecture is generic enough to be adopted by diverse cities and flexible to changes, which allows adapting it to reduce costs, making its use possible in Brazil.
O objetivo desse trabalho consiste em propor uma heurística para o setor de transporte aéreo da Petrobras, a fim de planejar o transporte de pessoas em terra para as diversas unidades marítimas espalhadas ao longo da costa brasileira. O problema pode ser definido como um problema de roteamento de veículos que estabelece a tabela semanal de voos que se repetirá a longo prazo, minimizando o custo de transporte de passageiros para as unidades e maximizando o uso das aeronaves disponíveis. A solução deve considerar uma série de restrições de segurança de voo e contratos com as empresas de transporte em vigor. A heurística desenvolvida se baseia na metaheurística VNS, e foi testada com dados reais de três aeroportos. Os resultados obtidos foram promissores e indicam que ela pode ser aplicada em todas as fases do processo de transporte aéreo.
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