Abordagem Multidisciplinar do Primeiro Caso Autóctone de Tularémia Notificado em Portugal

Case ReportFrancisella tularensis, a Gram-negative coccobacillus, is a highly virulent pathogen responsible for several zoonotic outbreaks in Europe in the last few decades. The authors report the case of a 46-year-old male who developed fever, myalgias and headache a week after having contact with animal feed contaminated by rodents. Serological tests were positive for Francisella tularensis. This first case of autochthonous tularemia in Portugal led to an intensive investigation involving several healthcare services and national governmental authorities. The authors address the possible underdiagnosis of this infection in the country.Francisella tularensis, um cocobacilo Gram-negativo, é um microrganismo infecioso altamente virulento, responsável por vários surtos de doença na Europa nas últimas décadas. Os autores apresentam o caso de um homem de 46 anos com febre, mialgias e cefa- leias cerca de uma semana após contacto com ração de animais contaminada por roedores. O estudo serológico foi positivo para Francisella tularensis. Este caso, o primeiro caso de tularémia autóctone notificado em Portugal, originou uma intensa investigação envolvendo diversas autoridades de saúde e governamentais portuguesas. Os autores alertam para a possibilidade de subdiagnóstico desta doença no país.info:eu-repo/semantics/publishedVersio

Revisiting small- and medium-sized enterprises’ innovation and resilience during COVID-19: The tourism sector

Every day, companies are exposed to various risks arising from their environment, and small and medium enterprises (SMEs) are the most affected. This study emphasizes innovation and resilience as the starting points to understand how SMEs are influenced by external factors which are inde-pendent of the managers’ will. To date, we have seen several extreme factors that have conditioned businesses and entrepreneurs of these types of companies, such as the financial crisis of 2008. However, last year, in 2020, we saw the beginning of a worldwide pandemic: COVID-19. Thus, this research seeks to understand the extent to which this pandemic influenced the resilience and in-novation of SMEs in the tourism area. Thus, eight hypotheses were raised based on four inde-pendent variables: access to finance, risk taking, working conditions, and personal network. The study of these variables was developed from an online questionnaire and in-depth interviews. After analyzing the results, it is possible to infer that the COVID-19 pandemic resulted in consequences never observed in previous crises, to such an extent that the study showed that: (1) a company’s network positively influences its resilience; (2) risk taking influences innovation and resilience of these SMEs.info:eu-repo/semantics/publishedVersio

Vigilância na Gravidez: Estudo hospitalar 2003

O presente estudo pretende avaliar a repercussão do adequado seguimento da gravidez relativamente à sua evolução e à morbi-mortalidade do recém-nascid

Reflectance of Polytetrafluoroethylene (PTFE) for Xenon Scintillation Light

Gaseous and liquid xenon particle detectors are being used in a number of applications including dark matter search and neutrino-less double beta decay experiments. Polytetrafluoroethylene (PTFE) is often used in these detectors both as electrical insulator and as a light reflector to improve the efficiency of detection of scintillation photons. However, xenon emits in the vacuum ultraviolet wavelength region (175 nm) where the reflecting properties of PTFE are not sufficiently known. In this work we report on measurements of PTFE reflectance, including its angular distribution, for the xenon scintillation light. Various samples of PTFE, manufactured by different processes (extruded, expanded, skived and pressed) have been studied. The data were interpreted with a physical model comprising both specular and diffuse reflections. The reflectance obtained for these samples ranges from about 47% to 66% for VUV light. Fluoropolymers, namely ETFE, FEP and PFA were also measured

Contributo para o conhecimento da biodiversidade marinha da ilha das Flores

XIII Expedição Científica do Departamento de Biologia - Flores e Corvo 2007.No âmbito da XIII Expedição Científica Flores e Corvo/2007, organizada pelo Departamento de Biologia da Universidade dos Açores, efectuaram-se várias observações e recolhas de organismos marinhos, utilizando 3 metodologias: mergulho (bentos), arrasto (plâncton) e prospecção no intertidal

Diferenças Quanto ao Desempenho na Atenção Concentrada de Crianças e Adolescentes com e sem TDAH

A atenção é um processo neuropsicológico complexo que tem a função de facilitar a atividade mental selecionando estímulos mais importantes, dentre outros que estão ocorrendo no mesmo momento, de acordo com a necessidade do organismo. Algumas dificuldades encontradas em relação à atenção se referem à distração, esquecimentos, repetição de erros e necessidade de perguntar mais de uma vez a mesma coisa. O objetivo deste estudo é avaliar as diferenças quanto a atenção concentrada através do D2 Teste de Atenção Concentrada em 60 crianças e adolescentes, com e sem TDAH, com idade entre 9 e 15 anos. Os achados mostram que o D2  é um instrumento sensível para avaliar essa função na população investigada, porém sugere-se um estudo envolvendo uma amostra maior. O estudo também mostrou que existem diferenças significativas entre os grupos, que o grupo com TDAH apresentou um pior desempenho

Virtual Enterprise integration management based on a Meta-enterprise - A PMBoK approach

A Virtual Enterprise (VE) can be viewed as a project, with a lifecycle corresponding to the period between its creation and integration of the constituting elements until its dissolution, comprehending its operation and including its reconfigurations. The authors propose that the VE lifecycle is aligned and can be managed using the frameworks provided by several bodies of knowledge, such as the PMBoK Guide. In this paper the authors propose an alignment referential between the Project Management phases defined by PMBoK and management processes during the VE lifecycle.This work has been supported by (1) COMPETE: POCI-01-0145-FEDER-007043 (2) FCT – Fundação para a Ciência e Tecnologia within the Project Scope: UID/CEC/00319/2013.info:eu-repo/semantics/publishedVersio

The long-term evolution of the Douro River as evidenced by strath terrace staircases located at NE Portugal (western Iberia)

In western Iberia, mechanisms that explain the transition from endorheic to exorheic continental-scale drainage reorganisation are foreland basin overspill, headwards erosion and capture by an Atlantic river, or a combination of both. To explore these controls we have investigated the Portuguese sector of the Douro River, the site of drainage re-organsation. The Douro River routes downstream through weak sedimentary infill of the Douro Cenozoic Basin (Spain), after which the river cuts down through granitic and metamorphic rocks cut by active fault zones (NE Portugal), before reaching the Atlantic coast. We investigated the drainage reorganisation using an integrated remote sensing, field survey and geochronological approach applied to Pliocene-Quaternary fluvial sediments and landforms. The older drainage record is documented by a series of high and intermediate landform levels comprising 1) a high level (1000-600 m) faulted regional fluvial erosion surface, the North Iberian Meseta Planation Surface (NIMPS); 2) an inset level (650-600 m altitude) comprising a broad fluvial surface formed onto a large ENE-WSW depression that overlies resistant ProterozoicandPaleozoic bedrock and 3) an inset (500450m) fluvial surface. The younger drainage record comprises an entrenched fluvial strath terrace sequence of up to 9 levels (T9 = oldest positioned at 246-242 m above the modern river base (a.r.b); T1 = youngest positioned at 17-13 m a.r.b.). Levels T1 and T3 display fault offsets where the cross active NNE-SSW fault zones. The three lowest terrace levels (T1-T3) were dated using optically stimulated luminescence (OSL) techniques using Quartz-OSL and post infra-red stimulated luminescence (pIRIR). Results ranged from 39-12ka (T1), 57ka (T2) and >360ka (minimum) (T3). Fluvial incision rates of the younger (terrace) drainage record were quantified and temporally exptrapolated to model the ages of the high to intermediate elevation levels of the early drainage record. Integration of incision data with fault zone derived crustal uplift values informs on the timing of the endorheic to exhoreic drainage reorganization. We interpret the NIMPS to be part of the endorehic Douro Cenozoic Basin drainage divide erosion. The inset wide fluvial surface at 650-600 m altitude represents the overspill level in the area of the Mesão Frio ridges (drainage divide with the Atlantic drainage). Development of the exhoreic ancestral Douro valley is documented in the 500-450 m fluvial surface with our age and uplift modelling suggesting this became established during the upper Pleistocene (3.6 Ma) through to the Early Pleistocene (1.8 Ma). The entrenched river terrace sequence spans the Pleistocene, developing via spatial and temporal variations in rock strength, uplift and cyclic cool climate variability as the river adjusts to the Atlantic base level

Performance of a Chamber for Studying the Liquid Xenon Response to Nuclear Recoils

The design and performance of a 1.2 liter liquid xenon chamber equipped with 7 two-inch photomultiplier tubes, with the purpose of studying the scintillation response of xenon to gamma-rays and neutrons, is described. Measurements with gamma-rays indicate a high VUV light collection efficiency resulting in ~5.5 photoelectrons per 1 keV of deposited energy. The energy resolution (FWHM) is 18% and 22%, for 122 keV and 511 keV gamma-rays, respectively. An algorithm for the reconstruction of the scintillation coordinates in (x,y) plane was developed and tested. The position resolution is estimated to be 6.9 mm (sigma) for 122 keV gamma-rays.Comment: 6 pages, 6 figures; Presented at IEEE Nuclear Science Symposium and Medical Imaging Conference, Rome 2004; Submitted to IEEE Transactions on Nuclear Scienc

Produção e composição de cachos e incidência do anel vermelho em híbridos interespecíficos de caiaué.

O objetivo deste estudo foi avaliar nas condiçõesda Bahia, a produção e a composição de cachos e a morte devido a incidência do anel vermelho em progênies de HIE OxG, obtidas a partir de caiaué daorigem Manicoré e dendezeiro da origem La Mé