402 research outputs found

    The logistics management in the sizing of the fleet of containers per ships in dedicated route - The use of computer simulation: A Brazilian shipping company case

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    The aim of this paper is provide the use of the simulation in the  to manage one important point in the logistics systems to shipping companies that is the imbalance of containers, movement of empty containers from surplus ports to deficit ports.From a survey of data from a shipping company operating in Brazil, at various ports, it was possible to model and simulate the needs in six major domestic ports of empty and full containers and seek to meet demand in the shipping market, reducing storage of containers and maintaining the level of excellence in service.Based on the discrete event simulation it was possible to analyze the problem of empty and full containers at the ports in the maritime transportation system. It was possible study the imbalance situation in the ports e provide one tool the companies to manage yours service.The data are confined to one company located in São Paulo and operating in Brazil at maritime transportation.The research shows that the imbalance problem between full and empty containers is a real case to all companies in the maritime transportation and can have effective solutions using discrete event simulation.To have excellent supply chain management it is important to have also one effective transportation system. This paper contributes to research in the inbound and outbound part of the supply chain management

    A facilitação entre o trabalho e o não trabalho: um estudo qualitativo

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    Com o objectivo de estudar o lado positivo da relação entre trabalho e não trabalho foi realizado um estudo qualitativo e quantitativo, de forma a esclarecer quais os mecanismos potenciadores de facilitação entre trabalho e não trabalho, e quais as vantagens reportadas da conciliação entre o trabalho e a vida pessoal. O principal objectivo do estudo foi, então, compreender como é que as pessoas experienciam a facilitação trabalho-não trabalho e a facilitação não trabalho-trabalho. Procurou-se ainda averiguar de que forma é que estas se relacionam com a satisfação com a vida em geral, com a vida profissional e com a vida pessoal. Foi elaborada uma entrevista e um pequeno questionário, com base na literatura, e aplicados a uma amostra de 28 pessoas pertencentes a uma empresa portuguesa (90% dos colaboradores da empresa). Os resultados do estudo mostram a referência dos participantes a 13 mecanismos potenciadores de facilitação entre trabalho e não trabalho e a 11 vantagens resultantes da conciliação entre o trabalho e a vida pessoal. Foi ainda e encontrada uma correlação significativa positiva entre a facilitação não trabalho-trabalho e a satisfação com a vida em geral. De forma geral, ao chegar ao fim deste estudo, os resultados sugerem que, de facto, a relação entre trabalho e não trabalho pode ser positiva, havendo mecanismos a potenciar a facilitação entre os dois domínios e sendo as próprias pessoas a reportar várias vantagens da sua conciliação.A qualitative and quantitative study was done to understand the positive side of the relationship between work and non work. The study allowed to know what are the linking mechanisms between work and non work which lead to facilitation and what are the main advantages of conciliate a professional and a personal life. The main objective of this study was to know how people experience facilitation from work to non work and from non work to work. It was also an objective to understand the relationship between these kind of facilitations and satisfaction (personal satisfaction, work satisfaction, and satisfaction with the global life). After review the literature about this theme, it was made an interview and a questionnaire, which were applied to 28 workers of a Portuguese organization (90% of the workers). The results of the study show that the participants reported 13 linking mechanisms and 11 advantages of conciliate a personal life with a professional life. It was also found a positive correlation between facilitation from non work to work and satisfaction with the global life. In the end of this study we can conclude that the relationship between work and non work can be positive, that are liking mechanisms which lead to facilitation and that people report many advantages of conciliate a professional and a personal life

    O ALCANCE DA JUSTIÇA NA ALIENAÇÃO PARENTAL.

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    Este trabalho tem o objetivo de analisar a relação existente entre a justiça e o famigerado fenômeno da síndrome da alienação parental, onde o genitor não consegue processar e absorver a separação judicial e acaba treinando o filho para ir de encontro á convivência com o pai. Usam-se das mais sórdidas manobras para treinar as crianças em desenvolvimento para repudiar o outro genitor fazendo uso de ofensas verbais, e até mentiras para influenciar o pensamento de um jovem em formação. Alienação parental é um ato insensato, grotesco, que mexe com a saúde mental da criança e desrespeita o direito fundamental à saúde e ao meio ambiente equilibrado. Deve tal ato ser rechaçado pela jurisdição assim que notados os indícios do processo. Porém quando o medo e repúdio já estão instalados, analises psicológicas deves ser feitas para que se prevaleça a melhor medida para a criança acometida por tal circunstância factual

    Framework de rede tolerante a falhas

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    Dissertação de mestrado integrado em Engenharia InformáticaUma Fault Tolerant Network é uma estrutura de Redes que tem como objetivo garantir a comunicação entre Nodos de uma Rede mesmo que esta seja propícia à perda de Datagramas e à consequente perda de Informação. Estas perdas podem acontecer por vários motivos, mas este projeto tem como alvo analisar três casos, o da mobilidade de Nodos na Rede, o da conexão intermitente e o da conexão esporádica. Todos estes ambientes onde se pretende assegurar a troca de Informação entre Nodos apresentam uma característica em comum, um possível volume elevado de perda de Datagramas a qualquer instante que limita a quantidade de Dados que podem ser trocados bem como a Qualidade de Serviço destas mesmas trocas de Dados. Esta é a principal característica que se pretende atenuar com o desenvolvimento deste Projeto, porém existem outras relacionadas como a interrupção prolongada de uma Transmissão e a sua retoma que também foram analisadas. Como todos os ambientes referidos anteriormente apresentam adversidades semelhantes ou que podem ser tratadas como tal, optou-se pelo desenvolvimento de um Protocolo de Transferência de Dados adaptado a tais adversidades. Este encontra-se entre a Camada de Transporte e a Camada de Aplicações da Network Stack e pode ser utilizado como base para o Desenvolvimento de Arquiteturas que possibilitem a Troca organizada de Informação entre Nodos. Neste Projeto foi Desenhado e Implementado um Protocolo de Transferência de Dados que possibilita a troca de informação nos ambientes anteriormente referidos, apresentando resiliência a Drops de Datagramas, grandes Delays na transmissão destes e movimentações de Nodos na Rede. Para além deste Protocolo, foi Desenhada uma simples Arquitetura de Redes baseada em Redes Ad Hoc onde cada Nodo tem uma visualização da Rede centralizada nele próprio e os restantes Nodos visíveis encontram-se organizados em Níveis de Vizinhança consoante a sua distância ao Nodo central. Foi tamb´em definido o objetivo de desenho de uma Arquitetura de Redes baseada em Redes DTN, que fortemente influenciou o Protocolo de Transferência de dados devido às suas grandes exigências. Por fim foram realizados testes em determinados cenários reais pertinentes ao Protótipo Implementado de forma a provar que os objetivos delineados inicialmente foram atingidos.A Fault Tolerant Network is a Network structure that aims to guarantee Node communication in certain Network environments that are prone to Datagram Drops and consequent loss of Information. These Drops can be present due to a multitude of reasons but this Project aims to analyze three specific cases where these can occur, Node Mobility, Intermittent Network Connection and Sporadic Network Connection. All these cases present the same challenge to Node Communication, there’s a possibility of a high volume of Datagram Drops that can happen unexpectedly, limits the amount of Data that can be exchanged between Nodes and lowers the Quality of Service of said exchanges. The main objective of this Project is to address these limitations that are innate in these specific cases as well as other topics that are derivative of said limitations such as extensive interruptions in Data Transfers and subsequent resume of these. Since all the cases described previously present the same challenges, or they can be treated like they are similar, it was decided to develop a Data Transfer Protocol fitted for these limitations. This Protocol is between the Transport and Application Layers of the Network Stack and it’s purpose is to improve Data Transfer and Reception between Nodes. In this Project, a Data Transfer Protocol was designed and implemented that enables Data transmission between Nodes in the cases previously referred, showing resilience against Datagram Drops, Transmission Delays and Node Mobility. In addition to this Protocol, a simple Ad Hoc Network Architecture was designed using said Protocol where each Node has a view of the Network centralized onto itself and the Neighboring Nodes organized in Neighbor Levels depending on their distance to the central Node. The objective of designing a simple version of a DTN was also established bringing new challenges that strongly influenced the design of the Data Transfer Protocol due to its strict requirements. Lastly, some tests were performed in real world scenarios in such ways that all the features designed and developed in this Project could be shown to be working properly and that all objectives delined were met

    The occidental otaku: Portuguese audience motivations for viewing anime

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    Japanese animation, widely known as anime, has a global reach. It is simultaneously broadcasted by traditional media and easily distributed and discussed among fans in the digital and online realms. However, non-Japanese audiences’ motivations for watching this kind of content remain almost unstudied in some countries, with Portugal being one of them. This article presents and discusses the outcomes of an online survey completed by 568 respondents, most of them young and regular watchers of anime. A scale by Rubin and Perse (1987), originally used in regard to the audiences of soap operas, was adapted in the scope of this article. Five main motivations were found for anime viewing, with entertainment being the strongest. Age and gender are relevant predictors for the sample’s motivations and also influence audience preferences regarding genres. The survey’s outcomes are complemented by nine in-depth interviews conducted during an anime convention, further exploring the motivations derived from the survey

    Infectious Causes of Abortion, Stillbirth and Neonatal Death in Bitches

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    Problems in gestational development in dogs can be determined by infectious and non‐infectious causes. Among the non‐infectious causes, trauma during pregnancy, genetic characteristics of the animal, deficit nutrition, thyroid dysfunction, maternal problems and hormonal disorders are found. The majority of the cases are in relation to infectious diseases, one should consider viral, bacterial, fungal and protozoal, which can interfere directly or indirectly in the foetal development. The progression of foetal development may be affected by the direct action of the microorganisms to overcome the placenta, but they are also able to affect pregnancy and release placental toxins by inflammatory processes and, may still cause maternal pathologies, which entail problems such as hyperthermia, hypoxia and endotoxemia, which can result in abortion. Several diseases can trigger pregnancy loss in dogs. This action can be direct by microorganisms, as well as indirectly triggering other problems that lead to abortion. This chapter discusses the infectious aetiologies of reproductive failures (abortion, stillbirth and neonatal death) in bitches

    Effects of glycosaminoglycan supplementation in the chondrogenic differentiation of bone marrow- and synovial- derived mesenchymal stem/stromal cells on 3D-extruded poly (ε-caprolactone) scaffolds

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    The lack of effective and long-term treatments for articular cartilage defects has increased the interest for innovative tissue engineering strategies. Such approaches, combining cells, biomaterial matrices and external biochemical/physical cues, hold promise for generating fully functional cartilage tissue. Herein, this study aims at exploring the use of the major cartilage glycosaminoglycans (GAGs), chondroitin sulfate (CS) and hyaluronic acid (HA), as external biochemical cues to promote the chondrogenic differentiation of human bone marrow- and synovium-derived mesenchymal stem/stromal cells (hBMSC/hSMSC) on custom-made 3 D porous poly (ε-caprolactone) (PCL) scaffolds. The culture conditions, namely the chondrogenic medium and hypoxic environment (5% O2 tension), were firstly optimized by culturing hBMSCs on PCL scaffolds without GAG supplementation. For both MSC sources, GAG supplemented media, particularly with HA, promoted significantly cartilage-like extracellular matrix (ECM) production (higher sulfated GAG amounts) and chondrogenic gene expression. Remarkably, in contrast to tissues generated using hBMSCs, the hSMSC-based constructs showed decreased expression of hypertrophic marker COL X. Histological, immunohistochemical and transmission electron microscopy (TEM) analysis confirmed the presence of typical articular cartilage ECM components (GAGs, aggrecan, collagen fibers) in all the tissue constructs produced. Overall, our results highlight the potential of integrating GAG supplementation, hSMSCs and customizable 3 D scaffolds toward the fabrication of bioengineered cartilage tissue substitutes with reduced hypertrophy.info:eu-repo/semantics/publishedVersio

    Reforma Agrária e Desenvolvimento: A Reconstrução e uma Questão Polêmica

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    This paper discusses the Brazilian agrarian reform as a tool for regional development. It discusses the current rural settlement policy and its importance in the interaction processes with local dynamics and regional development, investigating the changes that these projects may cause in the municipalities where they are developed.The central point of discussion of this work is Polanyi's arguments about the factors of production, land, labor and capital, and Amartya Sen's arguments on freedom as a development factor. The discussion calls for land reform as a way to provide opportunities and a condition of agents to its beneficiaries. Even recognizing the limits faced by this policy, the issue highlighted here refers to the need for land reform not to be limited to the granting of assets to its beneficiaries, but may actually increase their freedoms. We argue that access to land, to means of production, ensures the employee control over his workforce, putting him in a situation of protagonist that can contribute to development, since the economic function is just one among many vital functions in earth. Thus, access to land, the debate about land reform should not be seen simply as an economic instrument, but as a condition of life and social reproduction, the element relating to the organization of social, economic and political relationships.Este trabalho analisa a reforma agrária brasileira como instrumento de desenvolvimento regional. Discute a atual política de assentamentos rurais e sua importância nos processos de interação com as dinâmicas locais e regionais de desenvolvimento, investigando as transformações que esses projetos podem provocar nos municípios onde estão inseridos. O trabalho toma como ponto central de discussão os argumentos de Polanyi sobre os fatores de produção, terra, trabalho e capital, e de Amartya Sen sobre liberdade como fator de desenvolvimento. A discussão empreendida defende a reforma agrária como forma de conceder oportunidades e uma condição de agentes a seus beneficiários. Mesmo reconhecendo os limites enfrentados por essa política, a questão aqui salientada se refere à necessidade de que a reforma agrária não se limite à concessão de ativos aos seus beneficiários, mas que possa de fato ampliar suas liberdades. Argumentamos que o acesso à terra e aos meios de produção garante ao trabalhador o controle sobre sua força de trabalho, colocando-o em situação de protagonista que pode contribuir para o desenvolvimento, uma vez que a função econômica é apenas uma entre as muitas funções vitais da terra. Desse modo, o acesso à terra, base do debate sobre a reforma agrária, não deve ser visto simplesmente como instrumento econômico, e sim como condição de vida e de reprodução social, de elemento referente para a organização de relações sociais, econômicas e políticas
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