Ensaio Sobre Os Nós Das Redes Logísticas

O objetivo deste ensaio é discutir, sob o prisma epistemológico e em alguns aspectos ontológicos, os nós das redes logísticas. Analisando-se a literatura técnica e a pratica relacionada a este tema nos últimos 70 anos percebe-se algumas mudanças de paradigmas na definição e na função destes nós. Nesta discussão são considerados três elementos indicativos de rupturas epistemológicas. Serão eles mudanças nos aspectos semióticos, nas relações causais e no contexto. Em termos semióticos, os pontos de término ou de início de um movimento de mercadorias e pessoas sempre foi objeto de estudo e de atenção dos acadêmicos e dos práticos da área de transportes e de logística. Diversas relações causais e modelos explicativos para entendimento e representação de operações logísticas tratam os nós das redes logísticas como componente essencial das cadeias de suprimentos e vem se alterando ao longo do tempo. Em termos de contexto duas são as grandes alterações que condicionam a logística e consequentemente os nós de suas redes. São elas: as diferentes eras econômicas e a alteração do objeto movimentado. Porto, aeroporto, terminal, centro logístico ou plataforma logística: Qual o termo mais adequado? Depende do contexto de sua utilização e do papel exercido pelos mesmos na rede logística, todos são pontos fixos das redes sócio técnica informacionais que garantem os fluxos locais e globais..104353

Process capability index Cpk for monitoring the thermal performance in the distribution of refrigerated products

The temperature of refrigerated products along the cold chain must be kept within pre-defined limits to ensure adequate safety levels and high product quality. Because temperature largely influences microbial activities, the continuous monitoring of the time-temperature history over the distribution process usually allows for the adequate control of the product quality along both short- and medium-distance distribution routes. Time-Temperature Indicators (TTI) are composed of temperature measurements taken at various time intervals and are used to feed analytic models that monitor the impacts of temperature on product quality. Process Capability Indices (PCI), however, are calculated using TTI series to evaluate whether the thermal characteristics of the process are within the specified range. In this application, a refrigerated food delivery route is investigated using a simulated annealing algorithm that considers alternative delivery schemes. The objective of this investigation is to minimize the distance traveled while maintaining the vehicle temperature within the prescribed capability level261546

Higher Education Teaching and Learning Support Areas Differences in England and Brazil: A Case Study / Áreas de Apoio ao Ensino e Aprendizagem no Ensino Superior Diferenças na Inglaterra e no Brasil: um estudo de caso

Teaching and Learning processes have been relevant in higher education institutions. There have been a wide range of skills provided by the universities teaching and learning support areas. This paper shows a comparative analysis of these areas from University of Bath and the State University of Campinas-Unicamp. To show the strengths and weaknesses of each university, this paper shows their ranking data used within The Times Higher Education World University Rankings. Data gathered from both universities websites show their support areas with specific skills. While the University of Bath has high scores in international outlook and citations, Unicamp has its strength in teaching, research, and industry income. Unicamp has more than the double of students. Similar teaching and learning support areas in both universities are shown. Most skills listed for the University of Bath are present in the State university of Campinas-Unicamp. Three support areas under the School of Civil Engineering from Unicamp are shown. Data from other league tables were not considered. These support areas exist to help academic and professional staff when teaching, and planning to teach, and students when learning to learn. It might be relevant to run some scales, questionnaires, surveys among the undergraduate and graduate students, concerning motivation, procrastination, learning strategies, learning styles, and feedback from them about their needs and solutions they believe could help. These might lead to reinforcement or upgrade of these teaching and learning support areas bringing a more appropriate range of skills needed by the students and staff

Multi-messenger observations of a binary neutron star merger

On 2017 August 17 a binary neutron star coalescence candidate (later designated GW170817) with merger time 12:41:04 UTC was observed through gravitational waves by the Advanced LIGO and Advanced Virgo detectors. The Fermi Gamma-ray Burst Monitor independently detected a gamma-ray burst (GRB 170817A) with a time delay of ~1.7 s with respect to the merger time. From the gravitational-wave signal, the source was initially localized to a sky region of 31 deg2 at a luminosity distance of 40+8-8 Mpc and with component masses consistent with neutron stars. The component masses were later measured to be in the range 0.86 to 2.26 Mo. An extensive observing campaign was launched across the electromagnetic spectrum leading to the discovery of a bright optical transient (SSS17a, now with the IAU identification of AT 2017gfo) in NGC 4993 (at ~40 Mpc) less than 11 hours after the merger by the One- Meter, Two Hemisphere (1M2H) team using the 1 m Swope Telescope. The optical transient was independently detected by multiple teams within an hour. Subsequent observations targeted the object and its environment. Early ultraviolet observations revealed a blue transient that faded within 48 hours. Optical and infrared observations showed a redward evolution over ~10 days. Following early non-detections, X-ray and radio emission were discovered at the transient’s position ~9 and ~16 days, respectively, after the merger. Both the X-ray and radio emission likely arise from a physical process that is distinct from the one that generates the UV/optical/near-infrared emission. No ultra-high-energy gamma-rays and no neutrino candidates consistent with the source were found in follow-up searches. These observations support the hypothesis that GW170817 was produced by the merger of two neutron stars in NGC4993 followed by a short gamma-ray burst (GRB 170817A) and a kilonova/macronova powered by the radioactive decay of r-process nuclei synthesized in the ejecta

Hockey Stick Phenomenon: Supply Chain Management Challenge in Brazil

The objective of this study is to investigate a phenomenon that occurs in Brazil, specifically the spike in demand at the end of the sales period, known as the hockey stick phenomenon. This analysis will encompass the causes as well as the impacts of this phenomenon, in a way that allows alternative policies to be evaluated. Data was collected from a Brazilian branch of a large multinational in the non-durable consumer goods industry and in semi-structured interviews conducted face-to-face with executives of 26 clients. The data was used to generate a continuous simulation model based on the methods of systems dynamics. The findings showed that the phenomenon negatively impacted the manufacturer’s financial performance in the long term and indicated required changes necessary to remediate the phenomenon. This is an empirical study on the hockey stick phenomenon, a problem that affects diverse companies in Brazil. The study showed that companies should not assume the hockey stick phenomenon to be an exogenous problem; it showed that there are policies able to improve financial performance; and it provided ideas regarding ways to carry out the change process

Self-Regulated Learning Strategies Applied to Undergraduate, Graduate and Specialization Students from Civil Engineering

The current demand for civil engineering work requires new skills and knowledge and calls for new and effective learning methods. This paper shows self-regulated learning strategies applied to undergraduate, graduate and specialization students from Civil Engineering in a Brazilian University. A Scale of Evaluation of Learning Strategies was administered with a view to identifying students´ cognitive, metacognitive and dysfunctional learning strategies

Infraestruturas nas Copas do Mundo da Alemanha, África do Sul e Brasil

Brazil will host the FIFA World Cup in 2014, which is a worldwide event that occurs every four years and is responsible for moving a large number of people. The preparation to host the World Cup requires high investments in infrastructure that often remains underutilized after the event. The objective of this research is to evaluate whether the infrastructure (stadiums and transport systems) built for the Germany, South Africa and Brazil World Cups are positive legacies for the host countries. The methodology was case study, which was developed from secondary data. The study showed that (1) in Brazil, investments in transportation systems do not meet the host cities’ real needs, and (2) unlike what happened in Germany, in South Africa stadiums are underutilized, and there are difficulties to maintain them. The perspectives to Brazil are not good and there are great chances that the country will face problems that are similar to those of South Africa.O Brasil sediará, em 2014, a Copa do Mundo de Futebol: evento mundial que ocorre a cada quatro anos e é responsável pela movimentação de um grande número de pessoas. A preparação para receber a Copa exige do país-sede grandes investimentos em infraestruturas que muitas vezes permanecem subutilizadas após o evento. O objetivo do trabalho é avaliar se as infraestruturas – estádios e sistemas de transporte – construídas para as copas da Alemanha, África do Sul e Brasil constituem lega do positivo para os países-sede. A metodologia utilizada foi o estudo de casos desenvolvido a partir de dados secundários. O trabalho mostrou que (1) no caso do Brasil, os investimentos em sistemas de transporte não atendem as reais necessidades das cidades-sede e (2) diferentemente da Alemanha, na África do Sul os estádios estão em grande parte sub utilizados e com dificuldade para serem mantidos. As perspectivas para o Brasil também não são boas e há grandes chances de que o país enfrente problemas semelhantes aos da África do Sul

Infraestruturas nas Copas do Mundo da Alemanha, África do Sul e Brasil

O Brasil sediará, em 2014, a Copa do Mundo de Futebol: evento mundial que ocorre a cada quatro anos e é responsável pela movimentação de um grande número de pessoas. A preparação para receber a Copa exige do país-sede grandes investimentos em infraestruturas que muitas vezes permanecem subutilizadas após o evento. O objetivo do trabalho é avaliar se as infraestruturas – estádios e sistemas de transporte – construídas para as copas da Alemanha, África do Sul e Brasil constituem legado positivo para os países-sede. A metodologia utilizada foi o estudo de casos desenvolvido a partir de dados secundários. O trabalho mostrou que (1) no caso do Brasil, os investimentos em sistemas de transporte não atendem as reais necessidades das cidades-sede e (2) diferentemente da Alemanha, na África do Sul os estádios estão em grande parte subutilizados e com dificuldade para serem mantidos. As perspectivas para o Brasil também não são boas e há grandes chances de que o país enfrente problemas semelhantes aos da África do Sul