21 research outputs found

    BLD10/CEP135 Is a Microtubule-Associated Protein that Controls the Formation of the Flagellum Central Microtubule Pair

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    The deposited article is a post-print version and has been submitted to peer review.The deposited article is a pre-print versionThis deposit is composed by the main article and the supplementary materials are present in the publisher's page in the following link: https://ars.els-cdn.com/content/image/1-s2.0-S1534580712002511-mmc1.pdfCilia and flagella are involved in a variety of processes and human diseases, including ciliopathies and sterility. Their motility is often controlled by a central microtubule (MT) pair localized within the ciliary MT-based skeleton, the axoneme. We characterized the formation of the motility apparatus in detail in Drosophila spermatogenesis. We show that assembly of the central MT pair starts prior to the meiotic divisions, with nucleation of a singlet MT within the basal body of a small cilium, and that the second MT of the pair only assembles much later, upon flagella formation. BLD10/CEP135, a conserved player in centriole and flagella biogenesis, can bind and stabilize MTs and is required for the early steps of central MT pair formation. This work describes a genetically tractable system to study motile cilia formation and provides an explanation for BLD10/CEP135's role in assembling highly stable MT-based structures, such as motile axonemes and centrioles.Fundação para a Ciência e Tecnologia grants: (PTDC/BIA-BCM/105602/2008); EMBO Installation Grant; Instituto Gulbenkian de Ciência; EMBO YIP Program; European Research Council grant: ([FP7/2010]/ERC Grant “261344-CentrioleStructNumber.”); Ciência 2007; EMBO, Marie Curie Actions.info:eu-repo/semantics/publishedVersio

    Estudo do campeonato nacional do desporto escolar, 2005

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    O desempenho e a eficácia no jogo dos jovens voleibolistas devem constituir orientação fundamental para a planificação do processo de formação desportiva. No presente estudo é analisada a prestação das equipas juvenis participantes na fase final do campeonato nacional de voleibol do Desporto Escolar em 2005. Foram observadas onze equipas, num total de 37 registos de jogo (18 femininos, 19 masculinos) utilizando um sistema de observação centrado no resultado (positivo, indiferente ou negativo) de quatro acções de jogo: serviço (SRV), recepção (RCP), ataque (ATQ) e defesa (DEF). Os resultados: a) evidenciaram diferenças no perfil de desempenho típico entre sexos, com os rapazes a alcançarem as melhores prestações na RCP (54%) e no ATQ (20%) e as raparigas no SRV (19%), ATQ (17%) e DEF (15%); b) sugeriram valores mínimos de eficácia a obter em cada acção de jogo para assegurar a vitória no jogo (masc. - 8%, 56%, 20% e 10%; fem. - 17%, 9%, 17% e 15%, respectivamente no SRV, RCP, ATQ e DEF); c) permitiram inferir das principais lacunas a privilegiar no trabalho técnico-táctico com as equipas.4811-99FE-2ECD | Luis Paulo Rodriguesinfo:eu-repo/semantics/publishedVersio

    Cross Species Analysis and Comparison of Tumors in Dogs and Cats, by Age, Sex, Topography and Main Morphologies. Data from Vet-OncoNet

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    The animal cancer burden is essential for the translational value of companion animals in comparative oncology. The present work aims to describe, analyze, and compare frequencies and associations of tumors in dogs and cats based on the Animal Cancer Registry created by Vet-OncoNet. With 9079 registries, regarding 2019 and 2020, 81% (n = 7355) belonged to dogs. In comparison, cats have a general one-year right advance in the mean age of cancer diagnosis compared to dogs. The multivariate topography group analysis shows a distinct pattern between the two species: dogs have higher odds of cancer in the genito-urinary system, spleen, soft tissue tumors and skin, while cats show higher odds for tumors in the eyes, digestive organs, nasal cavity, lymph nodes, bones and mammary glands. Regarding morphologies, dogs are overrepresented in mast cell tumors (MCT), melanomas, and hemangiosarcomas. While cats are overrepresented in fibrosarcomas, lymphomas (T and B-cell), in malignant mammary tumors, and squamous cell carcinoma (SCC). Females have greater odds only in the mammary gland, with males having greater odds in six of twelve topographies. This study is the first outcome of continuous animal cancer registration studies in Portugal

    Influenza severe cases in hospitals, between 2014 and 2016 in Portugal

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    Rede Portuguesa de Laboratórios para o Diagnóstico da GripeBackground: Since 2009, the Portuguese Laboratory Network (PLNID) for Influenza Diagnosis has integrated 15 Laboratories in mainland and Atlantic Islands of Azores and Madeira. This PLNID added an important contribute to the National Influenza Surveillance Program regarding severe and hospitalized influenza cases. The present study aims to describe influenza viruses detected in influenza like illness (ILI) cases: outpatients (Outp), hospitalized (Hosp), and intensive care units (ICU), between 2014 and 2016. Methods: The PLNID performs influenza virus diagnosis by biomolecular methodologies. Weekly reports to the National Influenza Reference Laboratory ILI cases tested for influenza. Reports include data on detecting viruses, hospital assistance, antiviral therapeutics, and information on death outcome. Were reported during two winter seasons 8059 ILI cases,being 3560 cases in 2014/15 (1024 in Outp, 1750 Hosp, and 606 in ICU) and 4499 cases in 2015/2016 (1933 in Outp, 1826 Hosp, and 740 in ICU). Results: The higher percentage of influenza positive cases were detected in Outp in both seasons, 18% during 2014/15 and 20% in 2015/16. In 2014/15,influenza cases were more frequent in individuals older than 65 years old and these required more hospitalizations,even in ICU. In 2015/16,the influenza cases were mainly detected in individuals between 15-64 years old. A higher proportion of influenza positive cases with hospitalization in ICU were observed in adults between 45-64 years old.During the study period,the predominant circulating influenza viruses were different in the two seasons: influenza B and A(H3) co-circulated in 2014/15,and influenza A(H1)pdm09 was predominant during 2015/16. Even when influenza A is notthe dominant virus, A(H3) and A(H1)pdm09 subtypes correlate with higher detection rate in hospitalized cases (Hosp and UCI), with higher frequencies in adults older than 45. Influenza B,detected in higher proportion in outpatients, was frequently relatedwith influenza cases in younger age groups: 0-4 and 5-14 years old. Conclusions: This study highlights the correlation of theinfluenza virus type/subtype that circulates in each season with the possible need for hospitalization and intensive care in special groups of the population. Circulation of influenza A subtypes can cause more frequentdisease in individuals older than 45, with need of hospitalization including intensive care. On the other hand, influenza B is more frequently associated with less severe cases and with infection in children and younger adults. Influenza B circulation might predict lower number of hospitalizations.The identification of influenza type in circulation,byPLNID ineach season, could guide action planning measures in population health care.info:eu-repo/semantics/publishedVersio

    SARS-CoV-2 introductions and early dynamics of the epidemic in Portugal

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    Genomic surveillance of SARS-CoV-2 in Portugal was rapidly implemented by the National Institute of Health in the early stages of the COVID-19 epidemic, in collaboration with more than 50 laboratories distributed nationwide. Methods By applying recent phylodynamic models that allow integration of individual-based travel history, we reconstructed and characterized the spatio-temporal dynamics of SARSCoV-2 introductions and early dissemination in Portugal. Results We detected at least 277 independent SARS-CoV-2 introductions, mostly from European countries (namely the United Kingdom, Spain, France, Italy, and Switzerland), which were consistent with the countries with the highest connectivity with Portugal. Although most introductions were estimated to have occurred during early March 2020, it is likely that SARS-CoV-2 was silently circulating in Portugal throughout February, before the first cases were confirmed. Conclusions Here we conclude that the earlier implementation of measures could have minimized the number of introductions and subsequent virus expansion in Portugal. This study lays the foundation for genomic epidemiology of SARS-CoV-2 in Portugal, and highlights the need for systematic and geographically-representative genomic surveillance.We gratefully acknowledge to Sara Hill and Nuno Faria (University of Oxford) and Joshua Quick and Nick Loman (University of Birmingham) for kindly providing us with the initial sets of Artic Network primers for NGS; Rafael Mamede (MRamirez team, IMM, Lisbon) for developing and sharing a bioinformatics script for sequence curation (https://github.com/rfm-targa/BioinfUtils); Philippe Lemey (KU Leuven) for providing guidance on the implementation of the phylodynamic models; Joshua L. Cherry (National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health) for providing guidance with the subsampling strategies; and all authors, originating and submitting laboratories who have contributed genome data on GISAID (https://www.gisaid.org/) on which part of this research is based. The opinions expressed in this article are those of the authors and do not reflect the view of the National Institutes of Health, the Department of Health and Human Services, or the United States government. This study is co-funded by Fundação para a Ciência e Tecnologia and Agência de Investigação Clínica e Inovação Biomédica (234_596874175) on behalf of the Research 4 COVID-19 call. Some infrastructural resources used in this study come from the GenomePT project (POCI-01-0145-FEDER-022184), supported by COMPETE 2020 - Operational Programme for Competitiveness and Internationalisation (POCI), Lisboa Portugal Regional Operational Programme (Lisboa2020), Algarve Portugal Regional Operational Programme (CRESC Algarve2020), under the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund (ERDF), and by Fundação para a Ciência e a Tecnologia (FCT).info:eu-repo/semantics/publishedVersio

    Genomics and epidemiology for gastric adenocarcinomas (GE4GAC): a Brazilian initiative to study gastric cancer

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    Abstract Gastric cancer (GC) is the fifth most common type of cancer worldwide with high incidences in Asia, Central, and South American countries. This patchy distribution means that GC studies are neglected by large research centers from developed countries. The need for further understanding of this complex disease, including the local importance of epidemiological factors and the rich ancestral admixture found in Brazil, stimulated the implementation of the GE4GAC project. GE4GAC aims to embrace epidemiological, clinical, molecular and microbiological data from Brazilian controls and patients with malignant and pre-malignant gastric disease. In this letter, we summarize the main goals of the project, including subject and sample accrual and current findings

    Nationwide access to endovascular treatment for acute ischemic stroke in portugal

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    Publisher Copyright: Copyright Ordem dos M dicos 2021.Introduction: Since the publication of endovascular treatment trials and European Stroke Guidelines, Portugal has re-organized stroke healthcare. The nine centers performing endovascular treatment are not equally distributed within the country, which may lead to differential access to endovascular treatment. Our main aim was to perform a descriptive analysis of the main treatment metrics regarding endovascular treatment in mainland Portugal and its administrative districts. Material and Methods: A retrospective national multicentric cohort study was conducted, including all ischemic stroke patients treated with endovascular treatment in mainland Portugal over two years (July 2015 to June 2017). All endovascular treatment centers contributed to an anonymized database. Demographic, stroke-related and procedure-related variables were collected. Crude endovascular treatment rates were calculated per 100 000 inhabitants for mainland Portugal, and each district and endovascular treatment standardized ratios (indirect age-sex standardization) were also calculated. Patient time metrics were computed as the median time between stroke onset, first-door, and puncture. Results: A total of 1625 endovascular treatment procedures were registered. The endovascular treatment rate was 8.27/100 000 inhabitants/year. We found regional heterogeneity in endovascular treatment rates (1.58 to 16.53/100 000/year), with higher rates in districts closer to endovascular treatment centers. When analyzed by district, the median time from stroke onset to puncture ranged from 212 to 432 minutes, reflecting regional heterogeneity. Discussion: Overall endovascular treatment rates and procedural times in Portugal are comparable to other international registries. We found geographic heterogeneity, with lower endovascular treatment rates and longer onset-to-puncture time in southern and inner regions. Conclusion: The overall national rate of EVT in the first two years after the organization of EVT-capable centers is one of the highest among European countries, however, significant regional disparities were documented. Moreover, stroke-onset-to-first-door times and in-hospital procedural times in the EVT centers were comparable to those reported in the randomized controlled trials performed in high-volume tertiary hospitalspublishersversionpublishe

    Acesso a Tratamento Endovascular para Acidente Vascular Cerebral Isquémico em Portugal

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    Introduction: Since the publication of endovascular treatment trials and European Stroke Guidelines, Portugal has re-organized stroke healthcare. The nine centers performing endovascular treatment are not equally distributed within the country, which may lead to differential access to endovascular treatment. Our main aim was to perform a descriptive analysis of the main treatment metrics regarding endovascular treatment in mainland Portugal and its administrative districts. Material and Methods: A retrospective national multicentric cohort study was conducted, including all ischemic stroke patients treated with endovascular treatment in mainland Portugal over two years (July 2015 to June 2017). All endovascular treatment centers contributed to an anonymized database. Demographic, stroke-related and procedure-related variables were collected. Crude endovascular treatment rates were calculated per 100 000 inhabitants for mainland Portugal, and each district and endovascular treatment standardized ratios (indirect age-sex standardization) were also calculated. Patient time metrics were computed as the median time between stroke onset, first-door, and puncture. Results: A total of 1625 endovascular treatment procedures were registered. The endovascular treatment rate was 8.27/100 000 inhabitants/year. We found regional heterogeneity in endovascular treatment rates (1.58 to 16.53/100 000/year), with higher rates in districts closer to endovascular treatment centers. When analyzed by district, the median time from stroke onset to puncture ranged from 212 to 432 minutes, reflecting regional heterogeneity. Conclusion: The overall national rate of EVT in the first two years after the organization of EVT-capable centers is one of the highest among European countries, however, significant regional disparities were documented. Moreover, stroke-onset-to-first-door times and in-hospital procedural times in the EVT centers were comparable to those reported in the randomized controlled trials performed in high-volume tertiary hospitals.Introdução: A aprovação do tratamento endovascular para o acidente vascular cerebral isquémico obrigou à reorganização dos cuidados de saúde em Portugal. Os nove centros que realizam tratamento endovascular não estão distribuídos equitativamente pelo território, o que poderá causar acesso diferencial a tratamento. O principal objetivo deste estudo é realizar uma análise descritiva da frequência e métricas temporais do tratamento endovascular em Portugal continental e seus distritos. Material e Métodos: Estudo de coorte nacional multicêntrico, incluindo todos os doentes com acidente vascular cerebral isquémico submetidos a tratamento endovascular em Portugal continental durante um período de dois anos (julho 2015 a junho 2017). Foram colhidos dados demográficos, relacionados com o acidente vascular cerebral e variáveis do procedimento. Taxas de tratamento endovascular brutas e ajustadas (ajuste indireto a idade e sexo) foram calculadas por 100 000 habitantes/ano para Portugal continental e cada distrito. Métricas de procedimento como tempo entre instalação, primeira porta e punção foram também analisadas. Resultados: Foram registados 1625 tratamentos endovasculares, indicando uma taxa bruta nacional de tratamento endovascular de 8,27/100 000 habitantes/ano. As taxas de tratamento endovascular entre distritos variaram entre 1,58 e 16,53/100 000/ano, com taxas mais elevadas nos distritos próximos a hospitais com tratamento endovascular. O tempo entre sintomas e punção femural entre distritos variou entre 212 e 432 minutos. Conclusão: Portugal continental apresenta uma taxa nacional de tratamento endovascular elevada, apresentando, contudo, assimetrias regionais no acesso. As métricas temporais foram comparáveis com as observadas nos ensaios clínicos piloto

    Sizing of photovoltaic systems for selfconsumption in school buildings

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    Dissertação de Mestrado Integrado em Engenharia Electrotécnica e de Computadores apresentada à Faculdade de Ciências e TecnologiaO presente trabalho foi desenvolvido no âmbito da Dissertação de Mestrado Integrado em Engenharia Eletrotécnica e de Computadores, lecionada no Departamento de Engenharia Eletrotécnica e de Computadores da Faculdade de Ciências e Tecnologias da Universidade de Coimbra, no ano letivo 2017/2018.Esta dissertação tem como objetivo o melhor dimensionamento de um Sistema Fotovoltaico para Autoconsumo em Edifícios Escolares.Nesta dissertação começa-se por se fazer uma breve análise das tecnologias associadas a Sistemas Fotovoltaicos, bem como do seu funcionamento, dando especial enfase aos Sistemas de Autoconsumo.No decorrer deste trabalho, foi também feita uma abordagem da legislação a aplicar a Sistemas Fotovoltaicos, tendo em conta as alterações que foi sofrendo ao longo dos últimos anos, dando especial enfase ao Decreto-Lei n.º 153/2014.Seguido do Estudo do Sistema Fotovoltaico implementado no Departamento de Engenharia Eletrotécnica e de Computadores da Universidade de Coimbra/ Instituto de Sistemas e Robótica.Por fim, e tendo como objeto de estudo a fatura energética do Departamento de Engenharia Eletrotécnica e de Computadores da Universidade de Coimbra, é efetuada uma análise nas seguintes vertentes:• Sem Sistema Fotovoltaico;• Com o atual Sistema Fotovoltaico instalado;• Com o atual Sistema Fotovoltaico otimizado.Paralelamente, é analisada a remuneração económica obtida com a produção de eletricidade face ao seu comportamento energético.-------------------------------------The present work was developed within the scope of the Master's Degree Dissertation in Electrical and Computer Engineering, taught in the Electrical and Computer Engineering Department of the Faculty of Sciences and Technologies of the University of Coimbra, in the 2017/2018 academic year.This dissertation aims at the best design of a Photovoltaic System for Self-consumption in school buildings.In this dissertation is done a brief analysis of the technologies associated to Photovoltaic Systems, as well as its operation, giving special emphasis to the systems of Self consumption.In the course of this work, was made an approach to the legislation to be applied to Photovoltaic Systems is addressed, taking into account the changes that have been suffered over the last years, with special emphasis on Decree-Law no. 153/2014.Followed by the study of photovoltaic system implemented in the Department of Electrical and Computer Engineering at the University of Coimbra/Institute for Systems and Robotics.Finally, and having as object of study the energy invoice of the Electrical and Computer Engineering Department of the University of Coimbra, an analysis is made in the following areas:• No Photovoltaic System;• With the current Photovoltaic System installed;• With the current Photovoltaic System optimized.At the same time, the economic remuneration obtained with the production of electricity in relation to its energy behaviour is analysed.----------------------------------------------

    Judicialização do acesso a medicamentos no município de Ivinhema, Mato Grosso do Sul

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    Objetivo: conhecer o perfil das requisições de medicamentos na esfera administrativa, recebidas pela Secretaria de Saúde do Município de Ivinhema, Mato Grosso do Sul, no ano de 2017. Métodos: estudo descritivo, retrospectivo, com foco em base documental. Definiu-se como universo da pesquisa os ofícios recebidos pelo departamento jurídico da Secretaria de Saúde no Município de Ivinhema/MS, no período de primeiro de janeiro a 31 de dezembro de 2017. As variáveis concatenadas foram: quantificação das requisições de medicamentos no período supracitado; classificação da autoria dos ofícios recebidos; características dos medicamentos requeridos: pertinência à rede de assistência farmacêutica do SUS e classificação pela Anatomical Therapeutic Chemical Classification (ATC), de acordo com a recomendação da Organização Mundial de Saúde. Resultados: foram recebidos 59 ofícios, requisitando um total de 169 medicamentos. Desse total, 118 (69,8%) não faziam parte da rede de assistência farmacêutica do SUS. Dos 51 (30,2%) medicamentos listados na rede pública de saúde, 38 (74,5%) estavam elencados na Relação Estadual de Medicamentos Essenciais (Resme) e 13 (25,5%), na lista do componente especializado. Os fármacos solicitados com maior frequência foram: ácido acetilsalicílico (3,5%), metoprolol e cilostazol (2,4%). A maioria das requisições recebidas veio da Defensoria Pública (93,2%). Além disso, segundo a classificação terapêutica dos medicamentos solicitados, verificou-se que os grupos anatômicos mais frequentes foram: sistema nervoso central (31,9%), sistema cardiovascular (26,0%) e sangue e órgãos hematopoiéticos (10,6%). Conclusão: a maioria dos ofícios era de autoria da Defensoria Pública e requisitavam medicamentos que não faziam parte da rede de assistência farmacêutica do SUS
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