In order to contribute to the increase of the body of knowledge on the sensitivity of tropical indigenous species to pesticides, acute and chronic toxicity tests were conducted with the neotropical cladoceran Ceriodaphnia silvestrii. Tests were carried out with the active ingredients diuron and carbofuran and one of their commercial formulations, the Diuron Nortox® 500 SC and the Furadan® 350 SC, respectively. For carbofuran, the active ingredient was more toxic than the commercial product, whereas for diuron, the commercial product appeared more toxic. In addition, hormetic effects on fertility were recorded for intermediate diuron concentrations. Acute and chronic toxicity data indicated that C. silvestrii was among the most sensitive invertebrate species for both test compounds. Based on concentrations measured in Brazilian water bodies, these compounds represent ecological risks for causing direct and indirect toxic effects on C. silvestrii and other aquatic organisms. Our results support previous claims on the advantages of using native species to better tune ecological risk assessment of chemicals in tropical ecosystems.
Resumo: O mercado de flores no Brasil necessita de reestruturação para conseguir oferecer produtos sensíveis com maior qualidade para o consumidor. Essa reestruturação permitirá que as flores cheguem ao consumidor mais rapidamente e com mais tempo de durabilidade. O objetivo deste estudo foi analisar o lead time dos processos logísticos de uma rede varejista de flores com sede na cidade de Campinas/SP, utilizando a ferramenta MCT -Manufacturing Critical-path Time, da abordagem QRM -Quick Response Manufacturing. Algumas ferramentas auxiliaram a pesquisa, como Fluxograma, Mapa de Fluxo de Valor, Diagrama de Ishikawa e Brainstorming. Os dados coletados relacionados aos tempos de processamento das operações levantam características dos processos logísticos envolvidos na distribuição da matéria-prima, desde a sua aquisição até a entrega em cada filial. Ao fim da pesquisa foi possível propor mudanças nos locais de compras das flores e no modo de distribuição para as lojas, simulando a redução no lead time de aproximadamente 80%.
Palavras
Abstract:The flower market in Brazil needs restructuring to be able to offer delicate products with higher quality for the consumer. This restructuring will allow the flowers reach the customer faster and with longer durability. The aim of this study was to analyze the lead time of logistics processes of a flower retailer network with headquarters in Campinas/SP using the tool Manufacturing Critical-path Time of the Quick Response Manufacturing approach. We also use the tools Flowchart, Value Stream Map, Ishikawa Diagram and Brainstorming. The collected data related to the operations processing times showed characteristics of logistics processes involved in the distribution of raw material, from its acquisition to delivery at each branch office. At the end of the research was possible to propose changes in the shopping places of flowers and distribution mode to stores, simulating the reduction in the lead time of approximately 80%.
Gestão da qualidade utilizando a ferramenta de sugestão de melhorias dos funcionários em uma empresa de transporte de usina de açúcar e etanol Quality management using the employee improvement suggestion tool in a transport company in sugar and ethanol mil
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.