Optimization of digital signal processing routines for high speed coherent transmissions

Alcuni moduli di un ricevitore coerente per trasmissioni ottiche vengono analizzati e ottimizzati per ridurre il tempo di esecuzione e migliorare le perfomances.ope

Transferências de receitas aos municípios paranaenses e suas relações com o índice de desenvolvimento humano municipal

Orientadora: Profª Drª Denise Fukumi TsunodaDissertação (mestrado) - Universidade Federal do Paraná, Setor de Ciências Sociais Aplicadas, Programa de Pós-Graduação em Programa de Pós-Graduação em Desenvolvimento Econômico. Defesa : Curitiba, 17/06/2020Inclui referências: p. 106-110Resumo: O Brasil organiza-se político-administrativamente na forma de estado federado e para manutenção desse modelo faz-se necessária a repartição de arrecadação tributária entre os entes federados. Tal repartição ocorre com a transferência de receita da União aos demais entes (estados e municípios) e dos estados aos municípios. Além da repartição dos recursos arrecadados, o modelo federativo também impõe competências diferenciadas a cada ente no tocante à prestação do serviço público e, como consequência, suas atuações podem interferir na qualidade de vida dos cidadãos, qualidade essa que pode ser medida pelo Índice de Desenvolvimento Humano Municipal (IDHM). Este trabalho aborda o tema de transferência de recursos aos municípios paranaenses e sua relação com o IDHM. Desta forma, o objetivo da pesquisa é identificar se há algum tipo de influência das transferências citadas com o IDHM daqueles municípios. Essa pesquisa tem sua natureza aplicada, com abordagem de problema de pesquisa qualitativa e quantitativa, e com foco descritivo. O procedimento técnico foi essencialmente documental, já que os dados utilizados são os contidos em relatórios e documentos primários de fontes de dados oficiais. No desenvolvimento da pesquisa utilizou-se os dados contábeis dos exercícios de 1990 a 2009 disponibilizados pela Secretaria do Tesouro Nacional (Finanças do Brasil) e informações do IDHM com referências 2000 e 2010 constantes no Atlas de Desenvolvimento Humano do Brasil. Os dados contábeis foram pré-processados de forma a classificá-los em dois períodos (P1 para 1990 a 1999 e P2 para 2000 a 2009), com a utilização de 300 municípios paranaenses comuns em P1 e 374 municípios em P2, municípios esses comuns a cada período com contas contábeis similares em toda a série. Selecionou-se nas bases do IDHM o índice IDHM e seus componentes (IDHME, IDHM-L e IDHM-R) para fins de análise e relacionou-os com a base contábil - processada, P1 para o IDHM 2000 e P2 para o IDHM 2010. Sobre os dados relacionados aplicou-se o coeficiente de correlação de Pearson para fins de análise e conceituou-se esses coeficientes de acordo com a intensidade da correlação. Os resultados encontrados para as correlações das variáveis indicam existir correlação fraca para as receitas transferidas e índice IDHM para o período analisado. Infere-se com esse resultado que o modelo federativo de transferências de receitas aos municípios pode não contribuir satisfatoriamente com a melhoria do IDHM ou ainda que tal índice pode não ser a melhor opção para análise comparativa entre receita transferida e desenvolvimento humano Palavras-chave: Federalismo fiscal; recurso público; correlaçãoAbstract: Brazil organizes itself politically-administratively in the form of a federal state, and to maintain this model it is necessary to distribute tax revenues among the federal entities. Such distribution occurs with the transfer of revenue from the Union to other entities (states and municipalities) and from states to municipalities. In addition to the distribution of the collected resources, the federal model also imposes differentiated competences to each entity in relation to the provision of public services and, as a consequence, its actions may interfere in the quality of life of citizens, a quality that can be measured by the Municipal Human Development Index (IDHM). This work addresses the issue of transferring resources to the municipalities of Paraná and their relationship with IDHM. Thus, the objective of the survey is to identify whether there is any kind of influence of the transfers cited with IDHM in those municipalities. This research has its applied nature, with a qualitative and quantitative research problem approach, and with a descriptive focus. The technical procedure was essentially documental, since the data used are those contained in reports and primary documents from official data sources. In the development of the research, we used the accounting data from 1990 to 2009 made available by the National Treasury Secretariat (Finances of Brazil) and IDHM information with references from 2000 and 2010 contained in the Human Development Atlas of Brazil. The accounting data were pre-processed in order to classify them in two periods (P1 for 1990 to 1999 and P2 for 2000 to 2009), with the use of 300 common Parana municipalities in P1 and 374, municipalities in P2, these common to each period with similar accounting in the whole series. The IDHM index and its components (IDHM-E, IDHM-L and IDHM-R) were selected from the IDHM bases for analysis purposes and related them to the processed accounting base, P1 for IDHM 2000 and P2 for IDHM 2010. The Pearson correlation coefficient was applied to the related data for analysis purposes and these coefficients were conceptualized according to the correlation intensity. The results found for the correlations of the variables indicate that there is weak correlation for transferred revenues and HMI index for the analyzed period. It follows that the federal model of revenue transfers to municipalities may not contribute satisfactorily to the improvement of the HDI or that such index may not be the best option for comparative analysis between transferred revenue and human development Keywords: Fiscal federalism; public resource; correlatio

Flow Based Load Balancing: Optimizing Web Servers Resource Utilization

The expansion of the Internet has caused a growth on the number of users requesting services through the network, as well as the number of servers and the amount of services they offer. In order to minimize this problem, web servers have started to use a distributed architecture implementation, however with only one external interface for receiving requests from users. In this paper, we propose an approach towards flow-oriented load balancing, using the OpenFlow technology. Thus, each data flow is directed to a server, according to the policy being employed. We evaluate three load balancing techniques: random choice, time slice based choice and weighted balancing, each of them with its advantages and disadvantages.Through our measurements, weighted balancing achieved the best results over the other policies. More over, random choice and time slice based choice are capable of distributing the load in an acceptable way among nodes, considering the average load of each server.Keywords: load balancing, OpenFlow, flow based load balancing

AVALIAÇÃO DO DESEMPENHO DAS ATIVIDADES DO CONTENCIOSO PREVIDENCIÁRIO: O CASO DA PROCURADORIA FEDERAL

This paper aims to build a performance evaluation model for public pension litigation to support the management of the Federal Attorney in Santa Catarina. To achieve this goal, this research, with both qualitative and quantitative approach, sought data on interviews with the manager of the area, in addition to the analysis of documents used in the institution. Because it is a complex situation, involving several variables, constructivist Multicriteria methodology for decision support (MCDA-C) was used in order to structure and build knowledge and evaluate the objectives and suggest improvement actions. This research focuses on the structuring phase of the model and its recommendations. It resulted in a performance evaluation model containing two major areas of concern, six key points of view and nine elementary points of view from which descriptors were built, that allowed the current profile view of performance of pension litigation. In addition, the model developed allowed us to identify opportunities for institutional improvement.O presente estudo teve como objetivo construir um modelo de avaliação do desempenho da atuação contenciosa em matéria previdenciária para apoiar a gestão da Procuradoria Federal em Santa Catarina. Para atingir tal objetivo, esta pesquisa, de natureza qualitativa e quantitativa, buscou dados em entrevistas junto ao gestor da área, além da análise de documentos utilizados na instituição. Por se tratar de uma situação complexa, envolvendo diversas variáveis, a metodologia Multicritério de Apoio à Decisão Construtivista (MCDA-C) foi utilizada, com o objetivo de estruturar e construir conhecimento, bem como avaliar os objetivos e sugerir ações de aperfeiçoamento. A pesquisa ateve-se às fases de Estruturação e Recomendação da metodologia e teve como resultado um modelo de avaliação contendo duas grandes áreas de preocupação, seis pontos de vista fundamentais e nove pontos de vista elementares, a partir dos quais foram construídos descritores que permitiram a visualização do perfil atual de desempenho do contencioso previdenciário. Além disto, o modelo desenvolvido permitiu identificar oportunidades de melhoria e aperfeiçoamento institucional

The Platform-as-a-Service paradigm meets ATLAS: Developing an automated analysis workflow on the newly established INFN CLOUD

The Worldwide LHC Computing Grid (WLCG) is a large-scale collaboration which gathers computing resources from more than 170 computing centers worldwide. To fulfill the requirements of new applications and to improve the long-term sustainability of the grid middleware, newly available solutions are being investigated. Like open-source and commercial players, the HEP community has also recognized the benefits of integrating cloud technologies into the legacy, grid-based workflows. Since March 2021, INFN has entered the field of cloud computing establishing the INFN CLOUD infrastructure. This platform supports scientific computing, software development and training, and serves as an extension of local resources. Among available services, virtual machines, Docker-based deployments, HTCondor (deployed on Kubernetes) or general-purpose Kubernetes clusters can be deployed. An ongoing R&D activity within the ATLAS experiment has the long-term objective to define an operation model which is efficient, versatile and scalable in terms of costs and computing power. As a part of this larger effort, this study investigates the feasibility of an automated, cloud-based data analysis workflow for the ATLAS experiment using INFN CLOUD resources. The scope of this research has been defined in a new INFN R&D project: the INfn Cloud based Atlas aNalysis faciliTy, or INCANT. The long-term objective of INCANT is to provide a cloud-based system to support data preparation and data analysis. As a first project milestone, a proofof-concept has been developed. A Kubernetes cluster equipped with 7 nodes (total 28 vCPU, 56 GB of RAM and 700 GB of non-shared block storage) hosts an HTCondor cluster, federated with INFN’s IAM authentication platform, running in specialized Kubernetes pods. HTCondor worker nodes have direct access to CVMFS and EOS (via XRootD) for provisioning software and data, respectively. They are also connected to a NFS shared drive which can optionally be backed by an S3-compatible 2 TB storage. Jobs are submitted to the HTCondor cluster from a satellite, Dockerized submit node which is also federated with INFN’s IAM and connected to the same data and software resources. This proof-of-concept is being tested with actual analysis workflows

Retrospective analysis of the fluoride level in the public water supply and its correlation with dental fluorosis at two cities of South Santa Catarina

Introduction and Objective: To analyze retrospectively the fluoride level in the public water supply of two cities of the south Santa Catarina and to verify whether 12-year-old schoolers, who had used public water supply had dental fluorosis. Material and methods: 97 schoolers of the cities of Cocal do Sul and Morro da Fumaça were evaluated. Dental fluorosis was determined through Dean index. The annual averages of the fluoride concentrations in waters between the years of 2004 and 2015 were verified by reports supplied by the responsiblecompany. Results: The averages of the fluoride concentrations in the water supply in the cities of Cocal do Sul and Morro da Fumaça, during the analyzed period, were 0.86 and 0,85 ppm of fluoride, respectively, without statistically significant difference. The smaller concentration was found in 2006, in the city of Morro da Fumaça, with 0.64 ppm of F; the greatest concentration occurred in Cocal do Sul, in 2007, with 1.1 ppm of F. The prevalence of dental fluorosisin Cocal do Sul was 24.5% and in Morro da Fumaça was 14.6%, without statistically significant differences. All 12-year-old schoolers who had dental fluorosis were classified as light according to Dean index. Conclusion: Most of the 12-year-old schoolers did not show any fluorosis degree. The cases of dental fluorosis were classified as little severity and with low esthetic impairment. It can be concluded that the fluoride levels in water supply were within the adequate and safe limits with low risk of dental fluorosis.Introduction and Objective: To analyze retrospectively the fluoride level in the public water supply of two cities of the south Santa Catarina and to verify whether 12-year-old schoolers, who had used public water supply had dental fluorosis. Material and methods: 97 schoolers of the cities of Cocal do Sul and Morro da Fumaça were evaluated. Dental fluorosis was determined through Dean index. The annual averages of the fluoride concentrations in waters between the years of 2004 and 2015 were verified by reports supplied by the responsiblecompany. Results: The averages of the fluoride concentrations in the water supply in the cities of Cocal do Sul and Morro da Fumaça, during the analyzed period, were 0.86 and 0,85 ppm of fluoride, respectively, without statistically significant difference. The smaller concentration was found in 2006, in the city of Morro da Fumaça, with 0.64 ppm of F; the greatest concentration occurred in Cocal do Sul, in 2007, with 1.1 ppm of F. The prevalence of dental fluorosisin Cocal do Sul was 24.5% and in Morro da Fumaça was 14.6%, without statistically significant differences. All 12-year-old schoolers who had dental fluorosis were classified as light according to Dean index. Conclusion: Most of the 12-year-old schoolers did not show any fluorosis degree. The cases of dental fluorosis were classified as little severity and with low esthetic impairment. It can be concluded that the fluoride levels in water supply were within the adequate and safe limits with low risk of dental fluorosis

The Coexistence of asthma and Chronic Ostructive Pulmonary Disease (COPD): prevalence and risk factors in young, middle-aged and elderly people from the general population

Background: The joint distribution of asthma and chronic obstructive pulmonary disease (COPD) has not been well described. This study aims at determining the prevalence of self-reported physician diagnoses of asthma, COPD and of the asthma-COPD overlap syndrome and to assess whether these conditions share a common set of risk factors. Methods: A screening questionnaire on respiratory symptoms, diagnoses and risk factors was administered by mail or phone to random samples of the general Italian population aged 20–44 (n = 5163) 45–64 (n = 2167) and 65–84 (n = 1030) in the frame of the multicentre Gene Environment Interactions in Respiratory Diseases (GEIRD) study. Results: A physician diagnosis of asthma or COPD (emphysema/chronic bronchitis/COPD) was reported by 13% and 21% of subjects aged &lt;65 and 65–84 years respectively. Aging was associated with a marked decrease in the prevalence of diagnosed asthma (from 8.2% to 1.6%) and with a marked increase in the prevalence of diagnosed COPD (from 3.3% to 13.3%). The prevalence of the overlap of asthma and COPD was 1.6% (1.3%–2.0%), 2.1% (1.5%–2.8%) and 4.5% (3.2%–5.9%) in the 20–44, 45–64 and 65–84 age groups. Subjects with both asthma and COPD diagnoses were more likely to have respiratory symptoms, physical impairment, and to report hospital admissions compared to asthma or COPD alone (p&lt;0.01). Age, sex, education and smoking showed different and sometimes opposite associations with the three conditions. Conclusion: Asthma and COPD are common in the general population, and they coexist in a substantial proportion of subjects. The asthma-COPD overlap syndrome represents an important clinical phenotype that deserves more medical attention and further research.</br

Pactuando e Impactando: O Efeito dos Acordos de Acionistas no Valor de Mercado da Firma

Some countries admit the presence of pacts that allow to change the relations and balance of power control exercised by the shareholders. Known as shareholder agreements, these pacts are contracts between two or more partners whose goal is to agree on the direction of the relationship between its members. Empirical results suggest that shareholder’ agreements play an important role in low legal protection markets because they inhibit the ability of the majority shareholder to extract benefits in detriment of minority shareholder. This paper aims to analyze the effect of shareholders' agreements in the market value of Brazilian companies from 1999 to 2013. The sample is composed by 472 companies, including 86 companies with shareholder’ agreements. The empirical strategy comprises the fixed effects method on a panel data model. The results show that the effect on firm value is positive as the degree of protection of minority shareholders is higher. However, the regressions tested with the indirect ownership structure have not been able to provide evidence to that effect.Alguns países admitem a convenção de pactos capazes de alterar as relações e o equilíbrio do poder de controle exercido pelos acionistas. Denominados acordos de acionistas, trata-se de contratos celebrados entre dois ou mais sócios, cujo objetivo é convencionar a direção do relacionamento entre seus membros. Resultados empíricos sugerem que os acordos desempenham um papel importante em mercados de baixa proteção legal porque inibem a inclinação do maior acionista em extrair benefícios em detrimento dos minoritários. Este trabalho propõe analisar o efeito dos acordos no valor de mercado das firmas brasileiras no período de 1999 até 2013. A composição da amostra é de 472 companhias, sendo 86 com acordos firmados. A estratégia empírica compreende o método de dados em painel com controle de efeitos fixos. Os resultados apontam que o efeito no valor da firma é positivo à medida que o grau de proteção aos acionistas minoritários é maior. No entanto, as regressões efetuadas com a estrutura de propriedade indireta não foram capazes de prover indícios nesse sentido

Avaliação do Desempenho no Setor Público: Uma Análise da Literatura

O presente artigo tem por objetivo identificar as abordagens da literatura internacional sobre o tema da avaliação de desempenho do setor público. Dentro de uma abordagem qualitativa, esta pesquisa aplica o método ProKnow-C para selecionar um portfólio bibliográfico (BP). Revelou-se um arcabouço teórico que demonstra a evolução da avaliação de desempenho no setor público. Em seguida, são relatadas, especificamente, as etapas da revisão, o que também contribui, como guia, para o aprimoramento das revisões da literatura científica em geral. Neste manuscrito, 39 trabalhos de pesquisa foram selecionados a partir de um banco bruto de 2228 artigos. Foram realizadas análises bibliométricas básicas e avançadas para identificar algumas particularidades da área de pesquisa, como autores, artigos e periódicos mais citados, além das preocupações específicas da avaliação de desempenho no setor público, como a necessidade de avaliação de desempenho promovendo a estratégia organizacional