Paper aims: This research proposes to apply the Fuzzy Analytical Hierarchy Process method for the supplier's selection in a Brazilian food company. Originality: It is the first time that food security has been incorporated as a first-level criterion in a process of selecting suppliers in a Brazilian food chain. Research method: Practical application was carried out in a food company located in Brazil. Main findings: Safety is the most important criteria when selecting a supplier, which ended up reflecting the placement of Supplier 3 as the best rated. Implications for theory and practice: This research provides the first practical application of a hybrid mathematical technique in the process of selecting suppliers in a Brazilian food chain, evaluating the Food Security criterion on an equal basis with the others, and not as a sub criterion. The model can help managers better understand their suppliers' capabilities and performance.
Esta pesquisa teve como objetivo avaliar o desempenho agronômico do coentro e as características químicas do solo sob diferentes adubações orgânicas com resíduo do caranguejo–uçá. Para o desempenho agronômico foram coletadas a altura, massa verde e seca das plantas. Na análise química foram determinadas o pH e as concentrações de 〖Ca〗^(2+), 〖〖Ca〗^(2+)+Mg〗^(2+), 〖Al〗^(3+),〖Na〗^+, Acidez potencial (H^++〖Al〗^(3+)), Matéria Orgânica (M.O), Nitrogênio (N) e Potássio (P). Os tratamentos adubados com os compostos orgânicos que possuíam gliricídia, folhas secas e 5% de resíduos do caranguejo apresentaram melhor desempenho agronômico. No que diz respeito às características químicas a Análise de Agrupamento Hierárquica (AAH) permitiu identificar a formação de três grupos, que se uniram de acordo com as quantidades de resíduos do caranguejo presente nos tratamentos. E com a Análise de Componentes Principais (ACP) foi possível identificar que a adição de resíduos do caranguejo-uçá contribuiu para o aumento nos teores de 〖Ca〗^(2+), 〖〖Ca〗^(2+)+Mg〗^(2+),〖Na〗^+e pH alcalino, e na inexistência de 〖Al〗^(3+)e Acidez potencial (H^++〖Al〗^(3+)) no solo.
is as associate professor in the Mary Lou Fulton Teachers College at Arizona State University. She also serves as the Education Director for the QESST Engineering Research Center. Michelle's program of research focuses on social interactions in collaborative learning contexts. She is particularly interested in how students navigate communication challenges as they negotiate complex engineering design projects. Her scholarship is grounded in notions of learning as a social process, influenced by complexity theories, sociocultural theories, sociolinguistics, and the learning sciences.
RESUMOEste estudo teve como objetivo descrever o processo de logística reversa de uma empresa do setor metalúrgico na cidade de Castanhal-PA, relacionando a importância da logística reversa para a empresa e para o meio ambiente. A pesquisa caracteriza-se como um estudo de caso, onde foram utilizadas entrevistas semiestruturadas para coletar os dados com os colaboradores do setor da qualidade da empresa que é o responsável pela logística reversa. Para a análise dos dados, utilizou-se a técnica de análise de conteúdo, e para auxiliar na organização dos dados foi utilizado o software Microsoft Excel 2013. A empresa estudada faz coleta seletiva e dá a destinação adequada aos seus resíduos, excluindo os papéis e orgânicos, pois são dispostos no lixão da cidade, não havendo uma destinação ou disposição adequada dos mesmos. Os resíduos encaminhados para tratamento não retornam à cadeia produtiva, com exceção dos metais pesados onde a empresa busca sempre os reutilizar na fabricação de outros produtos. PALAVRAS-CHAVE: Empresa metalúrgica, Logística reversa, Resíduos sólidos. REVERSE LOGISTICS IN THE AMAZON: A CASE STUDY ON A METALLURGICAL COMPANY SECTORABSTRACT This study aimed to describe the reverse logistics process of a company in the metallurgical sector in the city of Castanhal-PA, relating the importance of reverse logistics for the company and for the environment. It is characterized as a case study, where were used semi-structured interviews to collect data with employees of the quality sector that is responsible for reverse logistics. For data analysis, we used the content analysis technique, and to help organize the data we used the software Microsoft Excel 2013. The company studied does the selective collection and gives proper disposal its waste, excluding paper and organic, because they are deposited in the city dump, without an appropriate destination or arrangement thereof. However, those waste after referred for treatment, do not return for the productive chain, except for heavy metals where the company always seeks the reuse in the manufacture of other products.
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