128 research outputs found

    Toward New Ecologies of Cyberphysical Representational Forms, Scales, and Modalities

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    Research on tangible user interfaces commonly focuses on tangible interfaces acting alone or in comparison with screen-based multi-touch or graphical interfaces. In contrast, hybrid approaches can be seen as the norm for established mainstream interaction paradigms. This dissertation describes interfaces that support complementary information mediations, representational forms, and scales toward an ecology of systems embodying hybrid interaction modalities. I investigate systems combining tangible and multi-touch, as well as systems combining tangible and virtual reality interaction. For each of them, I describe work focusing on design and fabrication aspects, as well as work focusing on reproducibility, engagement, legibility, and perception aspects

    Detecção de mudanças na mancha urbana de Monte Carmelo - MG utilizando imagens multiespectrais

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    Monte Carmelo is a Brazilian municipality of the state of Minas Gerais, which traditionally has economic activity linked to the production of tiles, bricks, ceramic artifacts and coffee production. In 2011, the advanced campus of the federal university of Uberlandia settled in the city, where today five baccalaureate courses are already taught. Due to these factors, there has been a growth in the municipal, which is already a reality for residents, but needs to be monitored and analyzed the needs of urban infrastructure, social facilities, services, among other components that make up the municipal directorial plan. In this sense, studying the intensity of the expansion is fundamental for the planning and articulation of public policies. Within this context, the use of orbital images with high spatial resolution is a viable and efficient alternative, being a strategic option that saves financial resources, since from them it is possible to estimate the growth of the urban spot precisely. Satellite images cover large areas with a regular temporal resolution, providing spatial and temporal information of several targets, widely used in change detection studies. Thus, the objective of this work is to analyze and quantify the growth of the Monte Carmelo urban network, using a time series of RapidEye images, from 2011 to 2018. For this purpose, pre-processing techniques of multispectral data were used, such as: correction geometric, atmospheric correction and radiometric calibration. After the influences of the errors were minimized and modeled the next step was to classify the images, and the objective was to find a way to highlight the urban stain of the other elements of the image, using two methods of classification: Segmentation of images and Artificial Neural Networks. In the image segmentation process, an equation was created, through histograms analysis, that can segment the urban part of the image.Trabalho de Conclusão de Curso (Graduação)Monte Carmelo é um munícipio brasileiro do estado de Minas Gerais, que tem tradicionalmente a atividade econômica ligada à produção de telhas, tijolos, artefatos cerâmicos e na produção de café. Em 2011, o campus avançado da Universidade Federal de Uberlândia se instalou na cidade, onde hoje já são ministrados cinco cursos de bacharelado. Devido a estes fatores ocorreu um crescimento na mancha urbana do munícipio, que já é uma realidade para os moradores, porém precisa ser monitorada e analisada as necessidades de infraestrutura urbana, equipamentos sociais, serviços, entre outros componentes que compõe o plano diretor municipal. Neste sentido, estudar a intensidade da expansão é fundamental para o planejamento e articulação de políticas públicas. Dentro desta conjuntura, o uso de imagens orbitais com alta resolução espacial é uma alternativa viável e eficiente, sendo uma opção estratégica que economiza recursos financeiros, pois a partir delas é possível estimar o crescimento da mancha urbana de forma precisa. As imagens de satélites cobrem áreas extensas com uma resolução temporal regular, possibilitando obter informações espaciais e temporais de diversos alvos, muito utilizado nos estudos de detecção de mudanças. Sendo assim, o objetivo deste trabalho é analisar e quantificar o crescimento da malha urbana de Monte Carmelo, utilizando uma série temporal de imagens RapidEye, de 2011 até 2018. Para tanto foram utilizadas técnicas de pré-processamento dos dados multiespectrais, tais como: correção geométrica, correção atmosférica e calibração radiométrica. Após as influências dos erros serem minimizados e modeladas a próxima etapa foi a de classificação das imagens, sendo que o objetivo era buscar uma maneira de destacar a mancha urbana dos demais elementos da imagem, utilizou-se dois métodos de classificação: Segmentação de imagens e Redes Neurais Artificiais. No processo de segmentação de imagens foi criado uma equação, através das análises dos histogramas, que consegue segmentar a parte urbana da imagem

    Moralidade, discricionariedade e os limites da função jurisdicional no contexto do Estado Democrático de Direito: o caso da Súmula Vinculante nº 13 no Brasil.

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    O presente artigo se dedica ao estudo da tensão entre a segurança e a correção das decisões judiciais, especificamente com relação ao princípio da moralidade que possui grande indeterminação jusfilosófica no momento de sua aplicação. Estuda-se neste ensaio a flexibilidade do princípio da moralidade que implica um espaço para a discricionariedade judicial tendente ao arbítrio na medida em que extrapola os limites impostos pela separação de poderes em um  estado que se intitule democrático de direito. Referida análise é concluída com o exemplo concreto da Súmula Vinculante nº 13, editada pelo Supremo Tribunal Federal no Brasil.

    Effects of Oral Nutritional Supplementation on Patients with Venous Ulcers: A Clinical Trial

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    Background: The dosage and safety of nutritional supplements for patients with venous ulcers are still not well established. Aim: To evaluate the effects of a high calorie, high protein, arginine-, zinc-, and vitamins A, C, and E-enriched nutritional supplement on the biochemical profile, dietary intake, anthropometry, muscle strength, and characteristics of lesions of patients with venous ulcers. Methods: A controlled before–after clinical trial with a four-week follow-up involved 27 patients with venous ulcers under outpatient treatment in Brazil. It was administered in two to three doses per day (200 mL each) of a high-calorie and high-protein supplement enriched with arginine, zinc, and vitamins A, C, and E. Patients were assessed for anthropometric parameters, dietary intake, biochemical tests, and healing conditions according to the Pressure Ulcer Scale for Healing (PUSH). Results: It was observed that an increase in energy and protein supply led to an adequate intake of immunonutrients (zinc and vitamins A, C, and E), increased body weight, increased body mass index, and stronger handgrip strength. The injury area and the score on the PUSH notably decreased after the intervention (p < 0.001). Conclusions: The administered supplement, at the tested dosage, improved the nutritional status and characteristics of lesions in patients with venous ulcers.This research was funded by the Goias Research Foundation, State Health Department of Goias, National Council for Scientific and Technological Development, Ministry of Health, Department of Science and Technology (Research Program for the Brazilian Unified Health System—PPSUS 201410267000321), and the National Council for Scientific and Technological Development (487093/2013-5)

    Mercado de carne bovina

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    Gerente: Jaldir Freire Lima. Técnicos: Alexandre P. G. Pereira, Sandra Siqueira. Estagiários: Geraldo A. da Silva Filho, Débora Valadão Araújo. Apoio bibliográfico: Heloíza Mirand

    Mechanical Behavior of Different Restorative Materials and Onlay Preparation Designs in Endodontically Treated Molars

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    This study evaluated the effect of the combination of three different onlay preparation designs and two restorative materials on the stress distribution, using 3D-finite element analysis. Six models of first lower molars were created according to three preparation designs: non-retentive (nRET), traditional with occlusal isthmus reduction (IST), and traditional without occlusal isthmus reduction (wIST); and according to two restorative materials: lithium-disilicate (LD) and nanoceramic resin (NR). A 600 N axial load was applied at the central fossa. All solids were considered isotropic, homogeneous, and linearly elastic. A static linear analysis was performed, and the Maximum Principal Stress (MPS) criteria were used to evaluate the results and compare the stress in MPa on the restoration, cement layer, and tooth structure (enamel and dentin). A novel statistical approach was used for quantitative analysis of the finite element analysis results. On restoration and cement layer, nRET showed a more homogeneous stress distribution, while the highest stress peaks were calculated for LD onlays (restoration: 69-110; cement layer: 10.2-13.3). On the tooth structure, the material had more influence, with better results for LD (27-38). It can be concluded that nRET design showed the best mechanical behavior compared to IST and wIST, with LD being more advantageous for tooth structure and NR for the restoration and cement layer

    Natural Coinfection of Pseudomonas aeruginosa and Enteroaggregative Escherichia coli in a feral pigeon (Columba livia)

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    Background: Rock pigeon (Columba livia) is an exotic and invasive species of the Columbidae family found in several cities around the world, including Brazilian cities, and close to humans. This species is found in large populations often in public locations, where people may have contact. Several studies have demonstrated the isolation of human pathogens from these birds. However, there are scarce studies describing infections by Gram-negative bacteria to which pigeons are susceptible. Therefore, this report aimed to describe a case of natural coinfection of Pseudomonas aeruginosa and Enteroaggregative Escherichia coli in a feral pigeon.Case: A sick feral pigeon was delivered at the Laboratory of Ornithological Studies, State University of Ceará, Fortaleza, Brazil. Due to poor prognosis, the individual was euthanized with ketamine via intravenous injection and submitted to necropsy, in which samples were collected for microbiological and histopathological procedure. The procedure was performed aseptically and samples were collected from intestine, liver, spleen, heart and lung. Bacterial isolation was performed with culture media selective for Gram negative bacteria and strains were identified biochemically. Histopathological examination was performed with conventional method and slides were stained with hematoxylin and eosin. DNA from E. coli isolates was extracted with simples boiling method and submitted to uniplex conventional polymerase chain reaction (PCR) to diagnose diarrheagenic pathotypes with specific primers for the following genes: aaiC, aatA, eaeA, stx1, stx2, eltB, estA and ipaH. Escherichia coli was isolated from the intestine, liver, spleen and lung, while Pseudomonas aeruginosa was present in liver, spleen and lung. E. coli strains from liver and spleen were positive for the aaiC gene, which is a diagnostic gene for Enteroaggregative Escherichia coli (EAEC) pathotype. Necropsy revealed the presence of several caseous lesions around the head of the bird, cellulitis in the abdominal region, hepatomegaly, splenomegaly, hemorrhagic intestine and pericarditis. Microscopical findings were most intense in liver and lung samples, presenting vascular and inflammatory alterations. Histopathological alterations indicated an acute presentation of the infections and several lesions in different organs, demonstrating the septicemic characteristic of the microorganisms involved in this case.Discussion: Both pathogens in this report were identified mostly in the same organs, which may indicate that there was an association in the pathogenesis. However, the entry routes of infection in this case may have been different, considering that Pseudomonas aeruginosa was not isolated from the intestine. The histopathological findings were not pathognomonic for either pathogen. However, some characteristic lesions were observed, such as cellulitis, which is commonly attributed to Escherichia coli. EAEC strains are human pathogens that cause acute and persistent diarrhea around the world. These microorganisms could be potentially transmitted to humans, as suggested by other studies with feral pigeons and enteric pathogens. However, the absence of reports of pigeon-transmitted diarrheagenic infections in humans may suggest that pigeons are only reservoirs of these pathogens. In addition, as this report demonstrates, these birds may also suffer from these infections. In conclusion, the free-living pigeon presented a natural occurring case of coinfection by Pseudomonas aeruginosa and Enteroaggregative Escherichia coli. Both are human opportunistic pathogens, and may have public health implication

    O perfil das mulheres que realizam o exame preventivo no consultório escola da Universidade Veiga de Almeida no período de outubro de 2018 a outubro de 2019

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    General Objectives: To describe the profile of women who undergo the preventive examination in the office of the Veiga de Almeida University campus Cabo Cold, based on data on occupation, age, marital status and year of the last preventive examination. Specific Objectives: To identify the characteristics of women attended at the university office at the Veiga de Almeida University, Cabo Frio campus; determine the profile of women who undergo preventive examination; to compare the mean age of the women attended and the frequency with what the Ministry of Health recommends for carrying out preventive measures.Objetivos Gerais: Descrever o perfil das mulheres que realizam o exame preventivo no consultório escola da Universidade Veiga de Almeida campus Cabo frio a partir dos dados de ocupação, idade, estado civil e ano do último preventivo. Objetivos Específicos: Identificar as características das mulheres atendidas no consultório escola da Universidade Veiga de Almeida campus Cabo Frio; determinar o perfil das mulheres que realizam o exame preventivo; comparar as médias de idade das mulheres atendidas e a periodicidade com o que o Ministério da Saúde preconiza para a realização do preventivo

    Comparing the Bacterial Diversity of Acute and Chronic Dental Root Canal Infections

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    This study performed barcoded multiplex pyrosequencing with a 454 FLX instrument to compare the microbiota of dental root canal infections associated with acute (symptomatic) or chronic (asymptomatic) apical periodontitis. Analysis of samples from 9 acute abscesses and 8 chronic infections yielded partial 16S rRNA gene sequences that were taxonomically classified into 916 bacterial species-level operational taxonomic units (OTUs) (at 3% divergence) belonging to 67 genera and 13 phyla. The most abundant phyla in acute infections were Firmicutes (52%), Fusobacteria (17%) and Bacteroidetes (13%), while in chronic infections the dominant were Firmicutes (59%), Bacteroidetes (14%) and Actinobacteria (10%). Members of Fusobacteria were much more prevalent in acute (89%) than in chronic cases (50%). The most abundant/prevalent genera in acute infections were Fusobacterium and Parvimonas. Twenty genera were exclusively detected in acute infections and 18 in chronic infections. Only 18% (n = 165) of the OTUs at 3% divergence were shared by acute and chronic infections. Diversity and richness estimators revealed that acute infections were significantly more diverse than chronic infections. Although a high interindividual variation in bacterial communities was observed, many samples tended to group together according to the type of infection (acute or chronic). This study is one of the most comprehensive in-deep comparisons of the microbiota associated with acute and chronic dental root canal infections and highlights the role of diverse polymicrobial communities as the unit of pathogenicity in acute infections. The overall diversity of endodontic infections as revealed by the pyrosequencing technique was much higher than previously reported for endodontic infections
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