985 resultados para Cemento -- Industria


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Incluye bibliografía.

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El presente documento tiene como objetivo caracterizar al proceso de crecimiento argentino durante el período 2003-2011, atendiendo especialmente a la dinámica del sector industrial, los cambios en su composición y el impacto de dichas trasformaciones en el mundo del trabajo (empleo, salarios, formalidad).

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Este trabajo tiene como objetivo presentar un análisis de la distribución espacial de la industria automotriz en el Brasil, entre 1995 y 2011, en relación con sus diversas categorías económicas, y mostrar sus encadenamientos sectoriales mediante las matrices interregionales de insumo-producto. A partir del cálculo del coeficiente de localización (QLij) de dicho período, se constató que la tercera ola de inversiones, iniciada en la segunda mitad de los años noventa, logró producir, de hecho, una ligera desconcentración espacial de este sector en la economía nacional. El cálculo del coeficiente de asociación geográfica (CAik) de diferentes años indicó una pequeña disminución, pese a que se mantuvo un nivel significativo de concentración, lo que sugiere que la producción de vehículos es un proceso bastante integrado con otras actividades económicas. Esta integración se corroboró, especialmente, con respecto a la compra de insumos (efectos hacia atrás) en todas las regiones aquí analizadas.

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Currently, the food market is a great competition. It is no longer unanimously in the CMC powder drinks, as in the past, xanthan gum, always seeking to develop more economic alternatives, such as guar gum. It is clear, therefore, it is of vital importance to understand thoroughly the operation of a particular product in different process conditions and with different materials so that we can develop and adapt both new processes and products to new market reality

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Continuous improvement of industrial processes is one way to become companies more competitive in the market. For this, a fairly widespread use is the methodology of lean production systems, by eliminating waste. One of the tools of these systems is the method of rapid exchange of die or also called SMED, which will be applied in this study. The study aims to develop proposals for reducing the time of set up of two machines in two machining lines, watching also the ergonomics and safety conditions in this operations. The set up time reduction is justified among others, due to increase the machine productivity. In applying the connecting rod machining line, there were two types of exchange. Reductions in time to set up proposals reached values of 47% to one of them, and 55% to the other. It is important to underline that to reach this result, there was no need for large investments. In the application in block machining line, was developed an improvement in the ergonomic area. It was placed a pulley block that came to increase the time of tool change. Aiming to improve the security of the exchange, without productivity loss, the method was applied to reduce this time. It was developed two proposals.: the first would reduce that time by 19%, and does not require many resources of the company. The second involves the parallelization of the exchange, so that the reduction is 48%. However, this proposal requires one more manpower at the time of exchange and it is not always possible

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Peripheral cement-ossifying fibroma is a relatively common gingival growth of a reactive rather than neoplastic nature, whose pathogenesis is uncertain. It predominantly affects adolescents and young adults, with peak prevalence between 10 and 19 years. We report here the clinical case of a 5-year-old girl with disease duration of 3 years, who was followed up for 4 years, showing a gingival health and normal radiopacity of bone.

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Florid cemento-osseous dysplasia (FCOD) is a non-neoplastic condition of the jaws that is not associated with inflammation of the pulp or periodontal tissue. This article reports on three cases that were diagnosed as FCOD, demonstrating the importance of both clinical and radiographic diagnosis and the clinical management of these lesions.

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The florid cemento-osseous dysplasia is an asymptomatic lesion present in the fibro-osseous maxilla and mandible of uncertain etiology. It has higher expression in females, and patients melanoderm, middle-aged to elderly. This dysplasia is an asymptomatic condition that can be discovered when a radiograph is performed. A biopsy is contraindicated to avoid infection difficult to treat. We report the case of a white woman 52 years old, who searched the Clinic of Surgery and Traumatology Bucco-maxillofacial surgery, Faculty of Dentistry of Araçatuba with pain in the posterior portion of left mandible. After radiographic examination was diagnosed with florid cementoosseous dysplasia. Treatment was instituted clinical and radiographic.

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Introduction: The current Brazilian legislation states that health services must be performed by the Specialized Service of Safety Engineering and Labor Medicine (SESMT). Objective: To analyze the dental and medical reasons for absenteeism, checking the interference of factors such as age, gender and position of the worker, and most of the reasons that led the employee to miss work. Material and methods: The research appears as a descriptive study with a quantitative approach. The dental and medical certificates and statements of attendance were analyzed, duly approved, lodged in a acrylic industry in the city of Araçatuba-SP, from January to July 2011. Results: Of the total number of certificates (n = 1841), only 103 (5.6%) were for dental reasons. Predominance of the age group of 20-29 years, males and with non-administrative function. The reasons most dental and medical certificates stated that led the workers to miss working days were "inclusive and impacted teeth" and "diarrhea and gastroenteritis of presumed infectious origin", respectively. As to factors related to absenteeism, there was a severity index of 2.83, 1.33 frequency and average duration of absences of 2.12. Conclusions: It is concluded that dental reasons had little weight on total absences due to illness that caused the temporary leave of the worker for a shorter period. The age and function variables influence the occurrence of work absenteeism.

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Este artigo tem como objetivo resgatar a trajetória das histórias em quadrinhos brasileiras na década de 1970, considerada de especial relevância para o avanço da arte gráfica sequencial no Brasil. Nesse período, observa-se, de um lado, iniciativas de pequenas editoras localizadas em vários estados brasileiros, e, de outro, empreendimentos feitos por editoras de grande porte na publicação de material nacional. Como estudo de caso, apresenta a revista Crás!, produzida pela Editora Abril, de São Paulo, que reuniu talentos veteranos e jovens da arte gráfica sequencial brasileira. A análise dessa publicação revela as dificuldades do quadrinho brasileiro frente às necessidades e limites das editoras comerciais e do mercado editorial no país.

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