Goal: The need to discuss reverse logistics processes with a detailed and analytical approach, aiming at improving the reverse channel efficiency is notorious in the literature. Therefore, this research aimed to analyze and describe in detail the activities that make up the reverse logistics processes and, in addition, to propose a conceptual framework for a better understanding and definition of RL processes. . Design / Methodology / Approach: This was achieved through a systematic review, which considered 3.517 papers, analyzing the RL concepts, definitions and objectives, as well as identifying its processes and activities. The activities were categorized as information (I-RL process) or materials (M-RL process) related. Results: This research provides an entire RL activities blueprint. This approach promotes greater transparency, allowing to identify stages most impacted on the reverse channels, besides standardizing logistical procedures and also allowing to insert control points for measuring performance. Limitations of the investigation: It is possible for a paper that focuses on one of the activities of the framework not to have been shown during the database if it doesn’t mention the keywords “reverse logistics”, “green logistics” and “sustainable logistics”. Practical implications: The concepts of reverse logistics activities presented in the framework can be implemented in reverse supply chains, serving as a basis for organizational strategies for managers involved with such processes. Originality / Value: The authors of this paper believe that the results achieved can greatly contribute to the expansion of debates in the RL area, as well as serve as a basis for managers involved with RL processes.

Among all existing inventory replenishment models, this research was dedicated to the Joint Replenishment Problem (JRP), which consists in the replenishment of multiple items simultaneously, aiming total cost reduction. Literature has presented several optimal and approximated solutions to this problem, with different applications and techniques, which results in a large quantity of solution proposals. Therefore, this research aimed to map existing solutions to the problem in 2006-2015 in order to provide a guide for interested parts in JRP and to update previous reviews. Hence, systematic review was used to assess papers from that period interval. From a total of 128 papers, a general trend for seeking JRP extensions and practical applications was verified. Furthermore, the heuristic and metaheuristic methods were the most used and considered the most suitable due to their simplicity in understanding and application. KeywordsInventory management. Multi-product. Joint replenishment problem. Systematic review.

<strong>Neste artigo, foram utilizadas técnicas de gerência de materiais no planejamento de ressuprimento de materiais no almoxarifado de uma empresa do setor elétrico, cujo processo de aquisição se dá aos moldes de compras públicas. Este estudo objetivou analisar e propor melhorias ao processo de ressuprimento de materiais, de modo que a empresa tivesse suas solicitações atendidas com redução de capital imobilizado em estoques e aumento da eficiência em seus processos de aquisição de materiais. Para tanto, utilizou-se de uma análise do histórico de Requisições de Compras (RC), Atas de Registro de Preço (ARP) e Documentos Formais de Compras (DFC) que serviram de base para a coleta de dados. A partir desses dados, juntamente com o mapeamento do processo de compras, foram sugeridas alterações na forma de inclusão de novos dados no ERP (Enterprise Resource Planning) da empresa, além de definições de famílias de materiais e a criação de ferramentas para geração de sugestões de RC e controle de ARP. Além disso, foi sugerido outro modelo de reposição de estoques para a empresa. A fim de verificar a eficácia do sistema proposto, foi apresentada uma avaliação comparativa entre a situação atual de alguns itens existentes nos estoques e um contexto potencial, obtido com a implementação das melhorias propostas nesta pesquisa. Como resultado, concluiu-se que o sistema proposto apresentaria vantagens significavas em relação ao sistema atual da empresa que considera outras possíveis formas de aquisição contempladas na administração pública.</strong>

Resumo:A sociedade pós-moderna consome em busca de bem-estar. Para tanto, uma enorme quantidade de recursos naturais é consumida e, consequentemente, grande quantidade de materiais é descartada sob a forma de resíduos. Neste contexto, para tentar minimizar os impactos ambientais, a Lei 12.305/10 instituiu a Política Nacional de Resíduos Sólidos (PNRS), que cumpre o objetivo de promover a destinação ambientalmente adequada aos resíduos sólidos, conferindo grande importância à reciclagem e à responsabilidade compartilhada pelo ciclo de vida do produto, fomentando a criação e manutenção de cooperativas de reciclagem de materiais e as práticas de Logística Reversa (LR). A LR vem ganhando destaque, já que busca soluções holísticas aos problemas ambientais. Desta forma, este artigo tem como objetivo avaliar a evolução de estudos de LR no contexto brasileiro por meio de Análise Bibliométrica de artigos publicados entre os anos de 2010 e 2014. Foi identificado o crescimento no número de publicações que discorrem sobre os temas em questão.Palavras-chave: Logística Reversa. Política Nacional de Resíduos Sólidos. Estudo Bibliométrico. Abstract:The postmodern society consumes in search of welfare. Therefore, an enormous amount of natural resources is consumed and consequently a large quantity of materials is discarded as waste. In this context, in order to try to minimize the environmental impacts, the Law 12.305/10 was approved, which established the National Policy for Solid Waste (PNRS). This policy comprises the objective of promoting the environmentally appropriated disposal of solid waste, assigning great importance to the recycling process and the shared responsibility for product lifecycle, which encouraged the creation and maintenance of recycling cooperatives of materials and Reverse Logistic (RL) practices. The RL has been highlighted since it seeks for holistic solutions for environmental problems. Hence, this study aimed to evaluate the evolution of Brazilian RL studies through a Bibliometric Analysis which comprehended articles published between 2010 and 2014. The growth in the number of publications that discuss the referred topics was substantiated.

Background: The wide variety of terms that converge in reverse logistics have been more evident and discussed in the current context of the literature, such as reverse channels, reverse supply chain, closed-loop supply chain, and circular supply chain. Regarding this, this paper aimed to investigate the level of uncertainty about the activities that make up the Reverse Logistics process in the opinion of professionals working in this area in Brazil, to develop a discussion relating to the sustainable development goals proposed by the UN and their importance for the future of logistics networks. Methods: Initially, through a detailed systematic review of the literature, the activities that make up the RL processes were identified. Then, a questionnaire was elaborated on regarding such activities, and a survey was developed with professionals in the area. The data obtained were analyzed through a descriptive analysis of means, calculation of Cronbach’s Alpha, and using the multicriteria decision technique TOPSIS. Results: It is possible to see that professionals involved with RL processes in Brazil still have many doubts regarding which activities belong to the RL process. In the opinion of Brazilian professionals, 10 of these activities have generated high levels of uncertainties about their belonging or not to the RL process. On the other hand, with a low level of uncertainty, 3 activities were not considered and 3 were considered to make up the RL process. Conclusions: It is believed that this study can contribute to the generation of knowledge by comparing basic information in the scientific literature with the practical knowledge of professionals belonging to the reverse logistics sector working in the Brazilian context.