4 results on '"Morais dos Reis, Daniel"'
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2. Software educativo e melhoria do conhecimento de escolares sobre prevenção de sobrepeso e obesidade
- Author
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Santos Vital Alves Coelho, Luana, Roner Vilanova Novais, Felipe, Armaneli Macedo, Giulia, Nunes Neves dos Santos, Júlia, Lara Sousa, Vinícius, Mattos Mendes, Luis Augusto, Morais dos Reis, Daniel, and Caetano Romano, Márcia Christina
- Subjects
criança ,child ,obesity ,obesidade ,sobrepeso ,software ,niño ,educación en salud ,schools ,programas informáticos ,health education ,educação em saúde ,overweight ,instituições acadêmicas ,instituciones académicas ,obesidad - Abstract
Objective.To evaluate the effects of educational software to improve first grade school students' knowledge about prevention of overweight and obesity. Methods. This non-controlled trial with a before-and-after evaluation was carried out in an school located in the municipality of Divinópolis (Brazil) among 71 students aged 6 to 10 years. The educational software about prevention of overweight and obesity was designed and then validated. The educational intervention comprised the use of the software. Before and after of the intervention we applied a questionnaire based on the Ten Steps to Healthy Eating for Children, proposed by the Brazilian Ministry of Health. Results. Comparing the times before and after application of the educational software, we observed statistically significant differences in proportion of questions answered correctly by first grade school students, mainly concerning daily eating of healthy and unhealthy food, adequate preparation of food and importance of exercise. Conclusion. This study highlights the importance of educational actions using software to build knowledge of first grade school students about prevention of overweight and obesity. Objetivo.Evaluar los efectos de la utilización de un software educativo en el mejoramiento del conocimiento de los escolares sobre la prevención del sobrepeso y la obesidad. Métodos. Ensayo no controlado con evaluaciones antes y después, realizado en una escuela municipal de Divinópolis (Brasil). Participaron 71 escolares con edades entre 6 y 10 años. El software educativo sobre prevención del sobrepeso y la obesidad se construyó y validó. La intervención educativa estuvo constituida por la utilización del software. Antes y después de la intervención se aplicó un cuestionario basado en los Diez pasos de la alimentación saludable de los niños, propuesta por el Ministerio da Salud. Resultados. Comparando los momentos antes y después de la utilización del software educativo, se observaron diferencias estadísticamente significativas en la proporción de preguntas contestadas correctamente por los escolares, en especial, en lo que se refiere a ingesta diaria de alimentos saludables y no saludables, preparación adecuada de alimentos y la importancia de la actividad física. Conclusión. El presente estudio resalta la importancia de las acciones educativas mediante la utilización de un software en la construcción de conocimiento en los escolares acerca de la prevención del sobrepeso y de la obesidad. Objetivo.Avaliar os efeitos da utilização de um software educativo na melhoria de conhecimento dos escolares sobre prevenção de sobrepeso e obesidade. Métodos. Ensaio não controlado com avaliação antes e depois, realizada em uma escola municipal de Divinópolis (Brasil). Participaram 71 escolares com idade entre 6 e 10 anos. O software educativo sobre prevenção de sobrepeso e obesidade foi construído e validado. A intervenção educativa foi constituída pela utilização deste software. Antes e depois da intervenção foi aplicado um questionário baseado nos Dez Passos da Alimentação Saudável da Criança, proposta pelo Ministério da Saúde. Resultados. Comparando os momentos antes e depois da utilização do software educativo se observaram diferenças estatisticamente significativas na proporção de perguntas respondidas corretamente pelos escolares, especialmente no que se refere à ingesta diária de alimentos saudáveis e não saudáveis, preparação adequada de alimentos e importância da atividade física. Conclusão. O presente estudo ressalta a importância das ações educativas por meio de um software na construção de conhecimento dos escolares acerca da prevenção de sobrepeso e obesidade.
- Published
- 2016
3. On the problem of minimizing the cost with optical devices in Wavelength Division Multiplexing optical networks: complexity analysis, mathematical formulation and improved heuristics.
- Author
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Quilliot, Alain, Figueiredo, Rosa, Morais dos Reis, Daniel, Goulart, Natã, Noronha, Thiago F., and de Souza, Sérgio Ricardo
- Subjects
WAVELENGTH division multiplexing ,OPTICAL devices ,GREEDY algorithms ,HEURISTIC ,WAVELENGTH assignment ,LINEAR programming - Abstract
The Fiber Installation Problem (FIP) in Wavelength Division Multiplexing (WDM) optical networks consists in routing a set of lightpaths (all-optical connections) such that the cost of the optical devices necessary to operate the network is minimized. Each of these devices is worth hundreds of thousands of dollars. In consequence, any improvement in the lightpath routing may save millions of dollars for the network operator. All the works in the literature for solving this problem are based on greedy heuristics and genetic algorithms. No information is known on how good are the solutions provided by these heuristics compared to the optimal solution. Besides, no proof that the problem is NP-Hard can be found. In this paper, we prove that FIP is NP-Hard and also present an Integer Linear Programming (ILP) formulation for the problem. In addition, we propose an implementation of the Iterated Local Search (ILS) metaheuristic to solve large instances of the problem. Computational experiments carried out on 21 realistic instances showed that the CPLEX solver running with our ILP formulation was able to solve 11 out of the 21 instances to optimality in less than two minutes. These results also showed that the ILS heuristic has an average optimality gap of 1% on the instances for which the optimal solution is known. For the other instances, the results showed that the proposed heuristic outperforms the best heuristic in the literature by 7%. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
4. Educational software and improvement of first grade school students' knowledge about prevention of overweight and obesity.
- Author
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Santos Vital Alves Coelho L, Roner Vilanova Novais F, Armaneli Macedo G, Nunes Neves Dos Santos J, Lara Sousa V, Mattos Mendes LA, Morais Dos Reis D, and Caetano Romano MC
- Subjects
- Brazil, Child, Diet, Healthy, Exercise, Female, Health Behavior, Humans, Male, Software, Students, Surveys and Questionnaires, Health Education methods, Health Knowledge, Attitudes, Practice, Overweight prevention & control, Pediatric Obesity prevention & control
- Abstract
Objective: To evaluate the effects of educational software to improve first grade school students' knowledge about prevention of overweight and obesity., Methods: This non-controlled trial with a before-and-after evaluation was carried out in an school located in the municipality of Divinópolis (Brazil) among 71 students aged 6 to 10 years. The educational software about prevention of overweight and obesity was designed and then validated. The educational intervention comprised the use of the software. Before and after of the intervention we applied a questionnaire based on the Ten Steps to Healthy Eating for Children, proposed by the Brazilian Ministry of Health., Results: Comparing the times before and after application of the educational software, we observed statistically significant differences in proportion of questions answered correctly by first grade school students, mainly concerning daily eating of healthy and unhealthy food, adequate preparation of food and importance of exercise., Conclusion: This study highlights the importance of educational actions using software to build knowledge of first grade school students about prevention of overweight and obesity.
- Published
- 2016
- Full Text
- View/download PDF
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