Abstract: The management of Waste Electrical and Electronic Equipment (WEEE) or electronic waste (e-garbage or e-waste) has become a major concern for urban communities due to the large volumes of waste generated, from the end of the 20th century. In this context, this work seeks to gather information for the implementation of a Reverse Logistics system that is comprehensive and regular for WEEE in the city of Campos dos Goytacazes – RJ. The behavior of the consumer was analyzed using a version adapted and inspired by the AHP Method, regarding to the most relevant considerations when disposing of WEEE (cell phones, computers and tablets). The data needed for this work were collected through the application of a questionnaire with open and closed questions to a sample, random and representative of citizens, in the city under study. It was noticed that the results found would support the decisions to be taken in the design of an efficient management system for WEEE. It is also worth mentioning that this research was carried out under the current considerations of sustainability according to what determines the Brazilian legislation on Solid Waste and can be intended as a prototype to be adapted to the reality of other cities in the country.
This study aims to analyze the practices of a pelletizing iron ore industry with respect to adoption of pollution prevention measures, suggested by applying the concepts of Cleaner Production and Material Flow Analysis. The technical procedure adopted was the case study, the data collection was done through direct observation, with field research and literature review. The main results were obtained from analysis of company reports available to the public, but require a more detailed quantification of data. The study concludes that the identification of environmental opportunities is possible through the proposed implementation of Cleaner Production program, which provides better results when combined with the precepts of the industrial ecology tool, the Material Flow Analysis.Keywords: environment management; cleaner production in pelletizing iron ore process; material flow analysis.
O artigo trata de uma revisão bibliográfica do tema Engenharia Social em virtude do avanço das Tecnologias da Informação e Comunicação (TIC's). Expõe a vulnerabilidade da Sociedade da Informação ante a facilidade de veiculação das informações provocada pela comunicação de redes digitais distribuídas. A metodologia faz consulta a trabalhos científicos já publicados na busca problematizar a questão no meio corporativo, que tem nas informações seu recurso vital, pois delas dependem uma gestão de operações eficaz. Assim, o artigo identifica regras e procedimentos com vistas à segurança da informação, de maneira a prevenir uma das formas mais comuns de fraudes, a Engenharia Social, que afeta o componente mais frágil do sistema, o usuário.Palavras-chave: Tecnologia da informação e comunicação; Engenharia social; Segurança da informação.
Resumo. Assimilação Variacional de Dados e Equações Adjuntas são dois métodos que, combinados, originam uma metodologia capaz de fornecer uma condição inicial de um sistema em estudo bastante realística e adequada a simulações numéricas, a um custo computacional aceitável e temporal que permite tomadas de decisão mais eficientes no caso de certos acidentes ambientais, quando apenas algumas observações e a dinâmica do sistema são conhecidas. Neste artigo, os fundamentos matemáticos e os procedimentos para se obter o adjunto de um dado programa computacional, uma tarefa fundamental para a aplicação da metodologia, são examinados.Palavras-chave. Assimilação variacional de dados, Método das equações adjuntas.
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