104 research outputs found

    Geração de Código Usando Diagramas de Atividade para Sistemas Embarcados

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    TCC (graduação) - Universidade Federal de Santa Catarina. Campus Joinville. Engenharia Mecatrônica.O processo de desenvolvimento de software embarcado na linguagem de programação C++ com aplicação em sistemas embarcados é amplamente difundida na indústria. Esse processo pode demandar retrabalho se não desenvolvido com requisitos de projeto bem estabelecidos, ou por falha de comunicação no decorrer do desenvolvimento do software. Consequentemente efetuar a alteração de valores de atributos ou métodos em um código com abundância de linhas representa uma perda desnecessária de recursos de uma empresa. Ocasionando no desenvolvimento de ferramentas para geração de código, criadas por empresas de software, visando facilitar futuras alterações na estruturas dos softwares projetados. Esse trabalho apresenta uma abordagem baseada em diagrama comportamentais de atividade UML para geração de código na linguagem de programação C++, portanto, fazendo a transformação de modelo para texto. Realizando a transformação de modelos de diagrama de atividade, por intermédio da linguagem de programação Java, resultando em um código na linguagem de programação C++.Developing embedded software in the C++ programming language applied to embedded systems is widespread in the industry. This process can require rework if not developed with well-established project requirements, or due to miscommunication during software development. Consequently, changing attributes or method values in a code with an abundance of lines represents a company’s unnecessary loss of resources. This leads to the development of code generation tools, created by software companies, to facilitate future changes in the structure of the designed software. This work presents an approach based on UML behavioral activity diagrams for code generation in the C++ programming language, thus making the transformation of a model into text. The transformation of activity diagram models, by means of the Java programming language, results in a C++ programming language code. The code generated was satisfactory, with some drawbacks or limitations

    Suscetibilidade da Bacia do Rio Bengalas a deslizamentos de terra

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    Resumo: Deslizamentos de terra vêm ocorrendo frequentemente nos últimos anos, devido ao crescimento desordenado das cidades e à ocupação de áreas de risco pela população mais carente, causando impactos sociais, ambientais e econômicos. Áreas urbanas em sua expansão avançam para áreas geologicamente instáveis e topograficamente inclinadas, como é o caso da Bacia do Rio Bengalas, localizada no Município de Nova Friburgo, Região Serrana do Estado do Rio de Janeiro, Brasil. Este artigo tem por objetivo apresentar o levantamento realizado para avaliar a suscetibilidade da Bacia do Rio Bengalas a deslizamentos de terra, que em janeiro de 2011, com a ocorrência de fortes chuvas, estes desastres impactaram na morte de 429 pessoas no Município de Nova Friburgo. Para este artigo foram feitas diversas investigações relacionadas às áreas da bacia, como declividade, pedologia, litologia, uso e cobertura do solo, curvatura vertical, curvatura horizontal. Com este estudo foi possível compreender como os elementos naturais e antrópicos do local de estudo estão relacionados com a dinâmica local dos desastres no que diz respeito às suas interferências na indução dos deslizamentos de terra, possibilitando assim a melhoria da gestão pública do Município no tocante ao uso e parcelamento do solo, a partir da identificação de áreas da Bacia do Rio Bengalas suscetíveis a deslizamentos de terra. Abstract: Landslides have frequently occurred in last years, due to the disorderly grownth of the cities and the occupation of risk areas by the poor population, causing social, environmental and economic impacts. Urban areas in expansion move to geologically unstable areas and topographically inclined, such as the Basin of River Bengalas, located in the city of Nova Friburgo, mountainous region of the State of Rio de Janeiro, Brazil. This article aims to present the model survey to assess the susceptibility of the Basin of River Bengalas to landslides, which in January 2011, with the occurrence of heavy rains, caused landslides that impacted in the death of 429 people in city of Nova Friburgo. For the case study, several investigations have been made related to the areas of the basin, such as slope, soil conditions, lithology, land use and cover, vertical curvature and horizontal curvature. With this study it was possible to understand how the natural and anthropics elements of the basin are related to the local dynamics of the disasters regarding to their interferences in the induction of landslides, thus enabling improved public management of the Municipality regarding the use and division of land, from the identification of areas Basin of River Bengalas susceptible to landslides

    Human Polymorphisms as Clinical Predictors in Leprosy

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    Genetic and serum markers in human host can predict leprosy susceptibility per se as well as be useful in classification and/or prediction of clinical variants and immunological responses in leprosy. Adequate and timely assessment of potential risks associated with these 38 host leprosy genes could diminish epidemiological burden and improve life quality of patients with this still prevalent mycobacterial disease

    Investigation of Association between Susceptibility to Leprosy and SNPs inside and near the BCHE Gene of Butyrylcholinesterase

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    Leprosy is a chronic disease caused by Mycobacterium leprae and affects the skin and the peripheral nervous system. Butyrylcholinesterase is coded by the BCHE gene, and the atypical allele (70G; rs1799807) has been investigated as a leprosy risk factor, with conflicting results. The present study estimated the frequencies of variants of rs1799807 and of five additional SNPs at the BCHE gene or near it: rs1126680, rs1803274, rs2863381, rs4440084, and rs4387996. A total of 167 patients and 150 healthy controls were genotyped by TaqMan PCR. Significantly higher allelic (70G) and genotypic (70DG) frequencies in rs1799807 were found in the patient group, with odds ratio (OR) of 6.33 (1.40 to 28.53) for the heterozygote. This finding was replicated in a comparison of the cases against a control group of 361 blood donors. The present data suggest that the atypical BChE variant may predispose to leprosy per se

    Ionic self-complementarity induces amyloid-like fibril formation in an isolated domain of a plant copper metallochaperone protein

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    BACKGROUND: Arabidopsis thaliana copper metallochaperone CCH is a functional homologue of yeast antioxidant ATX1, involved in cytosolic copper transport. In higher plants, CCH has to be transported to specialised cells through plasmodesmata, being the only metallochaperone reported to date that leaves the cell where it is synthesised. CCH has two different domains, the N-terminal domain conserved among other copper-metallochaperones and a C-terminal domain absent in all the identified non-plant metallochaperones. The aim of the present study was the biochemical and biophysical characterisation of the C-terminal domain of the copper metallochaperone CCH. RESULTS: The conformational behaviour of the isolated C-domain in solution is complex and implies the adoption of mixed conformations in different environments. The ionic self-complementary peptide KTEAETKTEAKVDAKADVE, derived from the C-domain of CCH, adopts and extended conformation in solution with a high content in β-sheet structure that induces a pH-dependent fibril formation. Freeze drying electron microscopy studies revealed the existence of well ordered amyloid-like fibrils in preparations from both the C-domain and its derivative peptide. CONCLUSION: A number of proteins related with copper homeostasis have a high tendency to form fibrils. The determinants for fibril formation, as well as the possible physiological role are not fully understood. Here we show that the plant exclusive C-domain of the copper metallochaperone CCH has conformational plasticity and forms fibrils at defined experimental conditions. The putative influence of these properties with plant copper delivery will be addressed in the future

    Molecular investigation of isolates from a multistate polymicrobial outbreak associated with contaminated total parenteral nutrition in Brazil

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    Background: Between November 2013 and June 2014, 56 cases of bacteremia (15 deaths) associated with the use of Total Parenteral Nutrition (TPN) and/or calcium gluconate (CG) were reported in four Brazilian states. Methods: We analyzed 73 bacterial isolates from four states: 45 from blood, 25 from TPN and three from CG, originally identified as Acinetobacter baumannii, Rhizobium radiobacter, Pantoea sp. or Enterobacteriaceae using molecular methods. Results: The first two bacterial species were confirmed while the third group of species could not be identified using standard identification protocols. These isolates were subsequently identified by Multi-Locus Sequence Analysis as Phytobacter diazotrophicus, a species related to strains from similar outbreaks in the United States in the 1970’s. Within each species, TPN and blood isolates proved to be clonal, whereas the R. radiobacter isolates retrieved from CG were found to be unrelated. Conclusion: This is the first report of a three-species outbreak caused by TPN contaminated with A. baumannii, R. radiobacter and P. diazotrophicus. The concomitant presence of clonal A. baumannii and P. diazotrophicus isolates in several TPN and blood samples, as well as the case of one patient, where all three different species were isolated simultaneously, suggest that the outbreak may be ascribed to a discrete contamination of TPN. In addition, this study highlights the clinical relevance of P. diazotrophicus, which has been involved in outbreaks in the past, but was often misidentified as P. agglomerans

    Molecular investigation of isolates from a multistate polymicrobial outbreak associated with contaminated total parenteral nutrition in Brazil

    Get PDF
    Background: Between November 2013 and June 2014, 56 cases of bacteremia (15 deaths) associated with the use of Total Parenteral Nutrition (TPN) and/or calcium gluconate (CG) were reported in four Brazilian states. Methods: We analyzed 73 bacterial isolates from four states: 45 from blood, 25 from TPN and three from CG, originally identified as Acinetobacter baumannii, Rhizobium radiobacter, Pantoea sp. or Enterobacteriaceae using molecular methods. Results: The first two bacterial species were confirmed while the third group of species could not be identified using standard identification protocols. These isolates were subsequently identified by Multi-Locus Sequence Analysis as Phytobacter diazotrophicus, a species related to strains from similar outbreaks in the United States in the 1970’s. Within each species, TPN and blood isolates proved to be clonal, whereas the R. radiobacter isolates retrieved from CG were found to be unrelated. Conclusion: This is the first report of a three-species outbreak caused by TPN contaminated with A. baumannii, R. radiobacter and P. diazotrophicus. The concomitant presence of clonal A. baumannii and P. diazotrophicus isolates in several TPN and blood samples, as well as the case of one patient, where all three different species were isolated simultaneously, suggest that the outbreak may be ascribed to a discrete contamination of TPN. In addition, this study highlights the clinical relevance of P. diazotrophicus, which has been involved in outbreaks in the past, but was often misidentified as P. agglomerans

    Cost-effectiveness of nehanced liver fibrosis test to assess liver fibrosis in chronic hepatitis C virus and alcoholic liver disease patients

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    AIM: To assess liver fibrosis (LF) in hepatitis C virus (HCV) and alcoholic liver disease (ALD), estimate health outcomes and costs of new noninvasive testing strategies. METHODS: A Markov model was developed to simulate LF progression in HCV and ALD for a cohort of 40-year-old men with abnormal levels of transaminases. Three different testing alternatives were studied: a single liver biopsy; annual Enhanced liver fibrosis (ELF ) followed by liver stiffness measurement (LSM) imaging as a confirmation test if the ELF test is positive; and annual ELF test without LSM. The analysis was performed from the perspective of a university hospital in Spain. Clinical data were obtained from published literature. Costs were sourced from administrative databases of the hospital. Deterministic and probabilistic sensitivity analyses were performed RESULTS: In HCV patients, annual sequential ELF test/LSM and annual ELF test alone prevented respectively 12.9 and 13.3 liver fibrosis-related deaths per 100 persons tested, compared to biopsy. The incremental cost-effectiveness ratios (ICERs) were respectively 13400 and 11500 per quality-adjusted life year (QALY). In ALD, fibrosis-related deaths decreased by 11.7 and 22.1 per 100 persons tested respectively with sequential ELF test/LSM and annual ELF test alone. ICERs were 280 and 190 per QALY, respectively. CONCLUSION: The use of the ELF test with or without a confirmation LSM are cost-effective options compared to a single liver biopsy for testing liver fibrosis in HCV and ALD patients in Spain

    Economic Impact of a New Rapid PCR Assay for Detecting Influenza Virus in an Emergency Department and Hospitalized Patients.

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    Seasonal influenza causes significant morbidity and mortality and has a substantial economic impact on the healthcare system. The main objective of this study was to compare the cost per patient for a rapid commercial PCR assay (Xpert1 Flu) with an in-house realtime PCR test for detecting influenza virus. Community patients with influenza like-illness attending the Emergency Department (ED) as well as hospitalized patients in the Hospital Clínic of Barcelona were included. Costs were evaluated from the perspective of the hospital considering the use of resources directly related to influenza testing and treatment. For the purpose of this study, 366 and 691 patients were tested in 2013 and 2014, respectively. The Xpert1 Flu test reduced the mean waiting time for patients in the ED by 9.1 hours and decreased the mean isolation time of hospitalized patients by 23.7 hours. This was associated with a 103 (or about 113)reductioninthecostperpatienttestedintheEDand64(113) reduction in the cost per patient tested in the ED and 64 (70) per hospitalized patient. Sensitivity analyses showed that Xpert1 Flu is likely to be cost-saving in hospitals with different contexts and prices
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