999 resultados para trabalho de conclusão de curso
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This experimental study aimed the evaluation of the use of anthropomorphic phantoms in the analysis of the influence of the acquisition parameters in the contrast of radiographic images. The analyzed factors were the variation of the peak kilovoltage (kVp) and the product of the filament circuit by the time of exposition (mAs). The influence of these factors was verified for different anthropomorphic phantoms: foot, knee and chest. The image contrast behavior with the simulators was compared to values obtained with the use of an aluminum ladder being the behavior of this reference for analysis and discussion. To assure the reproducibility of images, quality control tests were made and evaluation of procedure conditions before the experiments. The results obtained are shown in a scale of images where it was possible to evaluate the impact in the darkness of images. Regions with different compositions were analyzed which were different in image, this way the values of optical density and contrast are represented as charts and graphics. We conclude that the use of anthropomorphic phantoms in the evaluation of the influence of tension of the tube and time of exposition in the contrast of the radiographic images is not indicated for a quantitative analysis through optical density, once they present incompatible results with the data as reference as the aluminum ladder even so these simulators present a great property in qualitative analysis regarding the differentiation of structures and subjective evaluations
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Este trabalho apresenta um equipamento móvel, destinado ao uso de pessoas com deficiência e seus cuidadores, denominado Unidade Móvel de Orientação de AVD. Esta Unidade consiste em levar orientações às famílias, relacionadas às práticas diárias das pessoas com deficiência, abordando as modalidades de higiene pessoal, vestuário, alimentação e locomoção. Por intermédio da correta prática nas atividades básicas diárias, particular de cada um, espera-se promover a maior autonomia das pessoas com deficiência, a fim de torná-las mais independentes e melhorar sua autoestima. Com a autonomia adquirida conjuntamente à autoestima, o indivíduo se torna apto a enfrentar maiores barreiras que anteriormente não conseguia. São apresentados as configurações técnicas da Unidade que permitem seu adequado uso, bem como sua locomoção, já que é destinada a atender diferentes áreas
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This work aims to examine, the behavior of a combustion chamber in pilot scale, coupled to a regenerative burner. The objective is to obtain a computational domain capable of supporting a simulation of conventional combustion and flameless combustion regimes. The objective is to obtain independence of mesh, analysis of the velocity fields of the fluid within the chamber, temperature and concentration profiles of the species emitted during the combustion process
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Electrical energy is present in the lives of all people and is extremely important that it be delivered to end users with plenty of quality, safety and low costs. The electric power substations are responsible for transmission and distribution of electricity generating sources to consumers, and with technological advances and the subsequent automation of same, the electricity began to be delivered with greater continuity and reliability. Protection systems in substations are largely responsible for making the electricity reaches the final consumer with quality, since their function is to prevent the spread of any type of failure occurred at any point of transmission to the load centers. These systems consist primarily by the current transformers and potential, by the protective relays and circuit breakers and switchgear. The processors send the necessary data to the relays and, if those detect any abnormality in the system, operate the opening command of the branch circuit breakers to isolate where the fault. Therefore, it is essential to better understand the operation of such equipment, as well as the overall system. This work aims to study the main substation equipment, current transformers and potential and, especially, protection relays, in order to obtain the advantages that automated systems can provide
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The tanning wastes are characterized to be significant sources of pollution in the hydrosphere when non adjusted or disposed adequated form. That happens because this industry type uses the chromium to tan hides, and this element is present in discharges concentrations in final wastes, characterizing this waste type as dangerous, according to the Associação Brasileira de Normas Técnicas, através da Norma Brasileira 10.004 de 2004. Due to this, the research proposes a form to reduction chromium of the tanning wastes through the process of adsorption. For that were used mining-wastes of Corumbataí Formation clays, material commonly used in the production of ceramic products in Rio Claro (SP). They were accomplished laboratory essays that involved the preparation of different clays pulps and subsequent mixture of these with the tanning wastes, maintaining them under different mixing times and adsorption contacts. After the separation of the mixtures, the leached were chemically analyzed and it was seen the efficiency of chromium reduction and your relationship with the variation of different times of contact clays/wastes and different grain sizes used in the pulps preparation.
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From the questions raised by Bakhtin Circle, especially those intended to gender and dialogue, this work aims to study the relationships of meaning that are established between the statements present in commercial advertising discourse. For each sphere of production, circulation and reception of discourses, genres are appropriate, therefore, all discourse requires a different choice of language resources, which determines, among other things, the style of the message. The advertising genre, a genre characterized as complex, as it works, reframes and incorporates primary genres, has the central objective of building the next one idea being to buy something more frequent. This process occurs mainly through the use of persuasive speeches, compelling, authoritative, imperative and seduction. Our goal is to analyze an advertising piece, discussing how the resources used in advertising participate in the process of enunciation and persuasion and the manner in which the voices of others (previous authors, recipients hypothetical ) mingle with the voice of the subject's explicit enunciation. (Bakhtin, 2010, p. XXVII). Thus, based on Bakhtinian studies, we will think about the relation of the dialogical voices raised in question in advertising, and attend to the role of the other, with his active responsive understanding, how to be active and modifying agent
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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The objective of this research was to conduct an analysis of multitemporal landscape Ipanema National Forest, located in the municipalities of Iperó, Capela do Alto and Araçoiaba da Serra – São Paulo estate, Brazil, considering the scenarios of 1965, 2007 and 2011. The multitemporal analysis, using aerial photographs and satellite images, contributed to the contextualization and spatialization of the evolution of the landscape area. Through analysis interpretation of the images, performed by means of supervised classification were obtained thematic maps of the area, equivalent to approximately 53 km2. Through geoprocessing techniques, especially Geographic Information Systems, it was possible the integration and manipulation of data, both spatial and statistical, allowing integrated analysis of data from the entire area of the National Forest of Ipanema. As the main result, we found that the Ipanema National Forest is in landscape evolution positive, with those 46 years examined the increase of native heavy foliage areas. Increasing from 7.1 km2 of the total area of dense vegetation in 1965 to 35.9 km2 in 2011. Overall, it was possible to realize a scenario landscape quite optimistic about the evolution of forest conservation area
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The main purpose of this work is to evaluate the chemical composition of the groundwaters from Guarani Aquifer System and Serra Geral Aquifer System in the Rio Pardo basin, located at the southwestern of São Paulo state. To the hydrochemical characterization, physicalchemical analyses from 32 sampled wells were used. These results were plotted in Piper diagrams allowing the classification of groundwater as calcium or calcium-magnesium bicarbonate type and sodium bicarbonate type for both aquifer systems. Distribution of hydrochemical facies over the study area was obtained using Stiff diagrams. The groundwater can be classified, representing in this sequence its hydrochemical evolution. The recognized mechanisms responsible for groundwater evolution are dissolution of minerals magnesium, such as olivine, present in the basalt, dissolution of feldspars and removal of the carbonate cement of the sandstones mineral framework. Ionic exchange may represent an important processes in the groundwater evolution, responsible for the increase in the sodium concentration and decrease of calcium
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In chemical industry, petrochemical and oil refinery may be found situations that working pressures and very high temperatures, and alloys that comprise such equipment must have specific characteristics such. As a way to ensure that the materials are as designed, companies have some specific techniques, and one of them is X-ray fluorescence spectrometry, which allows its application in devices small and lightweight, which ensures its portability in field use. This technique however, has some shortcomings such as the impossibility of detecting carbon and other elements of low atomic number which can generate false identifications of elements that are not in the league or non-detection of existing elements. Therefore, this study investigated the reliability of this method using the apparatus Niton XL3t 800 and may conclude that their results are reliable and can be used to assist in ensuring the operational integrity of the production units of these companies
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Geological researches conducted in the past few years detected, through deep drill hole data, the presence of alkaline rocks in the region of Três Fontes-MG, where the Barbacena Group rocks, the Morro do Ferro Greenstone Belt rocks and Araxá/Canastra groups‟ rocks are exposed. This paper aimed the petrographic and chemical characterization of these alkaline rock types, which have not yet been described in the literature. Based on petrographic descriptions and geochemical and Scanning Electron Microscopy analysis, it was possible to characterize the rock in question as lamprophyre, rich in carbonates, phlogopite, pyroxene, olivine, titaniferous opaque minerals and apatite concentrations that reach 7%. This occurrence corresponds to an alkaline intrusion, which caused brecciation of host rocks, possibly indicating that the material is explosive, however, in the study area there was no evidence of volcanic activity on the surface
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A metilação de ilhas CpG em regiões regulatórias de vários genes tem sido descrita como um processo importante no silenciamento de genes supressores de tumor e diretamente envolvida no processo de carcinogênese de uma série de tumores. O estudo desses genes afetados pela metilação em tumores visa identificar possíveis marcadores moleculares para o diagnóstico, prognóstico e tratamento de tumores, além de possibilitar a descoberta de fatores importantes no processo biológico do câncer. Os genes MX1 e ADAM23 foram identificados como diferencialmente metilados em linhagens celulares provenientes de carcinoma de cabeça e pescoço. Neste sentido, ao estudar o perfil diferencial de metilação de genes em carcinomas de células escamosas de cabeça e pescoço, o gene MX1 foi identificado como diferencialmente expresso. Dessa forma, para elucidar a função destes genes no controle da carcinogênese, o presente estudo buscou identificar ligantes celulares das proteínas MX1 e ADAM23 por meio de rastreamentos de duplo-híbrido, usando bibliotecas de cDNA de cérebro fetal humano. Os rastreamentos com a proteína ADAM23 não geraram resultados positivos por isso não são aqui discutidos. Foi realizado rastreamento com a proteína MX1, que resultou em aproximadamente 1,0x106 transformantes, dos quais 74 foram confirmados pelo ensaio de duplo-híbrido e codificam para 9 ligantes já conhecidos e 21novos ligantes prováveis de MX1. Entre esses novos ligantes prováveis estão proteínas que já haviam sido descritas como ligantes de MX1, incluindo a própria proteína MX1, o que valida os resultados obtidos com este rastreamento. Além disso, grande parte dos ligantes identificados são fatores envolvidos no processo de SUMOilação de proteínas, na formação de corpúsculos nucleares denominados PML-NB e uma série de proteínas relacionadas ao controle da transcrição e apoptose... (Resumo completo, clicar acesso eletrônico abaixo)
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The demand for health services can be understood as an application needs the user has. The inability to use the outpatient services and limited supply of these make it possible for users to browse sites that focus attention on a greater possibility of entry doors, in which first-aid centers and hospital emergency match this profile, distorting the flow of patients in the network through an inverse demand of the movement hierarchy. Added to this, the burden of care in these services results in overcrowding and poor quality of care. Evaluate the demand of the visits occurred in the Emergency Room of the Hospital of the Medical School of Botucatu / UNESP (PS - HC - FMB / UNESP) during June-July 2010. A transversal, descriptive and retrospective. For data collection sheet was used in the proposed Service unit and the data it was filled out the form with the necessary items for the search. Made an exploratory analysis and frequency distributions for categorical variables of the form. Females predominated (56%) and aged 61 years or older with 30%. 96.5% were owned by DRS VI, and 62.5% of Botucatu. The attendance by the physician on duty and corresponded to 57.7% among the 23 medical specialties, Gastric (7.0%), Cardiology (4.5%), Medical (4.4%), urology (4.2%) and Pulmonology (4.1%) were the ones that stood out. The medical procedures performed that stood out were X-ray (46.4%) and electrocardiogram (ECG) (42.3%) and in most specialty care occurred, only the daily consultation with the patient. It was possible to characterize, so the demand for PS - HC - FMB / UNESP for the period June- July 2010, The predominance of the elderly shows that come along with aging diseases and addictions, causing a greater need for health services. Moreover, this study showed that the high number of visits is related to both the daily demands that the tertiary hospital has the same transformation... (Complete abstract click electronic access below)