Gateway de Ethernet-ZigBee

Mestrado em Engenharia Electrónica e TelecomunicaçõesTelecommunications have been present in our daily lives for a long time. The emergence of the Internet has revolutionized the way of communicating, allowing the establishment of a global scale network. The state of the Internet has been evolving from the "Internet of people" to become the "Internet of things" or the "Internet of everything". The huge increase of "smart" devices, i.e. with processing and communication capabilities, memory and the ability of gathering information, has been the main cause of this paradigm shift. The referred devices communicate according to the Machine-to-Machine concept, which allows an end-to-end communication between them, without (or with limited) human intervention. Home automation has been growing and it uses the described concepts; it allows the use of devices in order to automatize home-related tasks. A usual scenario allows the control of both lighting, temperature and sound systems through a central device that can be connected to the Internet, allowing the remote access and control of the entire system. The gateway is the device that allows a connection with other networks (e.g. Internet). The present document proposes an implementation of an Ethernet- ZigBee gateway that enables the remote monitoring and control of an HVAC (Heating, Ventilation and Air Conditioning) system through the Web browser.As telecomunicações estão há muito presentes no nosso dia-a-dia. O surgimento da Internet revolucionou o modo de comunicar, permitindo o estabelecimento de uma rede à escala global. Atualmente, caminhamos para um estado onde esta deixa de ser exclusivamente a “Internet das pessoas” para passar a ser a “Internet das coisas” ou mesmo a “Internet de tudo”. O enorme aumento de dispositivos “inteligentes”, ou seja, com capacidades de processamento, de comunicação, recolha de informação e memória, tem sido a principal causa desta mudança de paradigma. Os dispositivos referidos comunicam segundo o conceito denominado Machine-to-Machine; este permite a comunicação end-to-end entre dispositivos sem (ou com limitada) intervenção humana. A domótica é uma área em crescimento que faz uso dos conceitos descritos. Esta permite a utilização de dispositivos para automatizar as rotinas e tarefas de uma habitação. Um cenário habitual permite o controlo do sistema de iluminação, temperatura e som através de um dispositivo central que poderá estar conetado à Internet, permitindo assim o acesso e controlo remoto de todo o sistema. O dispositivo que permite a conexão com outras redes (por exemplo a Internet), denomina-se gateway. O presente trabalho propõe a implementação de uma gateway de Ethernet-ZigBee que permita a monitorização e controlo remoto de um sistema AVAC (Aquecimento, Ventilação e Ar Condicionado) através do Web browser

Joint Traffic-Aware UAV Placement and Predictive Routing for Aerial Networks

Aerial networks, composed of Unmanned Aerial Vehicles (UAVs) acting as Wi-Fi access points or cellular base stations, are emerging as an interesting solution to provide on-demand wireless connectivity to users, when there is no network infrastructure available, or to enhance the network capacity. This article proposes a traffic-aware topology control solution for aerial networks that holistically combines the placement of UAVs with a predictive and centralized routing protocol. The synergy created by the combination of the UAV placement and routing solutions allows the aerial network to seamlessly update its topology according to the users' traffic demand, whilst minimizing the disruption caused by the movement of the UAVs. As a result, the Quality of Service (QoS) provided to the users is improved. The components of the proposed solution are described and evaluated individually in this article by means of simulation and an experimental testbed. The results show that all the components improve the QoS provided to the users when compared to the corresponding baseline solutions

Asymmetrical subcortical plasticity entails cognitive progression in older individuals

Structural brain asymmetries have been associated with cognition. However, it is not known to what extent neuropsychological parameters and structural laterality covary with aging. Seventy-five subjects drawn from a larger normal aging cohort were evaluated in terms of MRI and neuropsychological parameters at two moments (M1 and M2), 18 months apart. In this time frame, asymmetry as measured by structural laterality index (ΔLI) was stable regarding both direction and magnitude in all areas. However, a significantly higher dispersion for this variation was observed in subcortical over cortical areas. Subjects with extreme increase in rightward lateralization of the caudate revealed increased M1 to M2 Stroop interference scores, but also a worsening of general cognition (MMSE). In contrast, subjects showing extreme increase in leftward lateralization of the thalamus presented higher increase in Stroop interference scores. In conclusion, while a decline in cognitive function was observed in the entire sample, regional brain asymmetries were relatively stable. Neuropsychological trajectories were associated with laterality changes in subcortical regions.This work was supported by the project NORTE‐01‐0145‐FEDER‐000013 through the Northern Portugal Regional Operational Programme (NORTE 2020), under the Portugal 2020 Partnership Agreement, through the European Regional Development Fund (FEDER), and funded by the European Commission (FP7) “SwitchBox ‐ Maintaining health in old age through homeostasis” (Contract HEALTH‐F2‐2010‐259772), and co‐financed by the Portuguese North Regional Operational Program (ON.2 – O Novo Norte), under the National Strategic Reference Framework (QREN), through FEDER, and by the Fundação Calouste Gulbenkian (Portugal) (Contract grant number: P‐139977; project “TEMPO ‐ Better mental health during ageing based on temporal prediction of individual brain ageing trajectories”) and by “PANINI ‐ Physical Activity and Nutrition INfluences In ageing” (European Commission (Horizon 2020), Contract GA 675003). Individual authors were supported under: "SwitchBox" to PM and NCS; Fundação para a Ciência e a Tecnologia (FCT) grants SFRH/BD/52291/2013 to ME and PD/BD/106050/2015 to CPN via Inter‐University Doctoral Programme in Ageing and Chronic Disease (PhDOC), PDE/BDE/113601/2015 to PSM and PDE/BDE/113604/2015 to RM via PhD Program in Health Sciences (Applied) (Phd‐iHES), SFRH/BD/90078/2012 to TCC, SFRH/BD/101398/2014 to LA and SFRH/BPD/80118/2011 do HLAinfo:eu-repo/semantics/publishedVersio

ZONAS INUNDÁVEIS E QUANTIFICAÇÃO DO RISCO DE INUNDAÇÃO EM MEIOS URBANOS: ESTUDO EM COIMBRA

As inundações urbanas são, hoje em dia, um tema bastante atual em praticamente todos os países e, em particular, em zonas muito urbanizadas. Os danos por elas causados são, frequentemente, bastante graves, o que se afigura serem necessárias medidas preventivas para evitar, quando possível, ou mitigar esses eventos. A crescente urbanização e, eventualmente, as alterações climáticas recentes apresentam um forte contributo para os eventos de inundações em zonas urbanas. Associados às preocupações inerentes às inundações, surgem os mapas de risco, os quais classificam determinada zona, quando atingida por uma inundação, consoante as consequências sofridas. Em 2007, a União Europeia publicou a Diretiva 2007/60/CE que prevê, para todos os Estados-Membros, o dever de elaborarem mapas de risco de inundação. Assim, este artigo tem como objetivo a elaboração de mapas de zonas inundáveis e mapas de risco de inundação para a Zona Central de Coimbra, Portugal. Com esse propósito, simularam-se eventos pluviométricos com diferentes períodos de retorno e, com base nos resultados, elaboraram-se os referidos mapas. Através da sua elaboração, verificou-se que estes proporcionavam uma indicação clara de quais as zonas e os edifícios mais sujeitos a sofrerem maiores prejuízos em caso de inundação

Patient-physician discordance in assessment of adherence to inhaled controller medication: a cross-sectional analysis of two cohorts

We aimed to compare patient's and physician's ratings of inhaled medication adherence and to identify predictors of patient-physician discordance.(SFRH/BPD/115169/2016) funded by Fundação para a Ciência e Tecnologia (FCT); ERDF (European Regional Development Fund) through the operations: POCI-01-0145-FEDER-029130 ('mINSPIRERS—mHealth to measure and improve adherence to medication in chronic obstructive respiratory diseases—generalisation and evaluation of gamification, peer support and advanced image processing technologies') cofunded by the COMPETE2020 (Programa Operacional Competitividade e Internacionalização), Portugal 2020 and by Portuguese Funds through FCT (Fundação para a Ciência e a Tecnologia).info:eu-repo/semantics/publishedVersio

Identification of clusters of asthma control: A preliminary analysis of the inspirers studies

This work was funded by ERDF (European Regional Development Fund) through the operations: POCI- -01-0145-FEDER-029130 (“mINSPIRERS—mHealth to measure and improve adherence to medication in chronic obstructive respiratory diseases - generalisation and evaluation of gamification, peer support and advanced image processing technologies”) co-funded by the COMPETE2020 (Programa Operacional Competitividade e Internacionalização), Portugal 2020 and by Portuguese Funds through FCT (Fundação para a Ciência e a Tecnologia).© 2020, Sociedade Portuguesa de Alergologia e Imunologia Clinica. All rights reserved. Aims: To identify distinct asthma control clusters based on Control of Allergic Rhinitis and Asthma Test (CARAT) and to compare patients’ characteristics among these clusters. Methods: Adults and adolescents (≥13 years) with persistent asthma were recruited at 29 Portuguese hospital outpatient clinics, in the context of two observational studies of the INSPIRERS project. Demographic and clinical characteristics, adherence to inhaled medication, beliefs about inhaled medication, anxiety and depression, quality of life, and asthma control (CARAT, >24 good control) were collected. Hierarchical cluster analysis was performed using CARAT total score (CARAT-T). Results: 410 patients (68% adults), with a median (percentile 25–percentile 75) age of 28 (16-46) years, were analysed. Three clusters were identified [mean CARAT-T (min-max)]: cluster 1 [27(24-30)], cluster 2 [19(14-23)] and cluster 3 [10(2-13)]. Patients in cluster 1 (34%) were characterised by better asthma control, better quality of life, higher inhaler adherence and use of a single inhaler. Patients in clusters 2 (50%) and 3 (16%) had uncontrolled asthma, lower inhaler adherence, more symptoms of anxiety and depression and more than half had at least one exacerbation in the previous year. Further-more, patients in cluster 3 were predominantly female, had more unscheduled medical visits and more anxiety symp-toms, perceived a higher necessity of their prescribed inhalers but also higher levels of concern about taking these inhalers. There were no differences in age, body mass index, lung function, smoking status, hospital admissions or specialist physician follow-up time among the three clusters. Conclusion: An unsupervised method based on CARAT--T, identified 3 clusters of patients with distinct, clinically meaningful characteristics. The cluster with better asthma control had a cut-off similar to the established in the validation study of CARAT and an additional cut-off seems to distinguish more severe disease. Further research is necessary to validate the asthma control clusters identified.publishersversionpublishe

uma nova ferramenta de vigilância transnacional da tuberculose no espaço lusófono

A Tuberculose (TB) permanece um grave problema de saúde pública na Comunidade dos Países de Língua Portuguesa (CPLP). Apesar da ampla variância da incidência da TB nos seus estados-membro e de um fluxo migratório contínuo entre os países que integram este grupo, existe uma enorme lacuna no que diz respeito ao conhecimento da estrutura populacional conjunta do Mycobacterium tuberculosis e circulação de estirpes entre estes países. Para fazer face a esta necessidade, foi agregado e analisado o maior conjunto de dados respeitante à diversidade genotípica e resistência fenotípica na CPLP que compreende um total de 1447 isolados clínicos, incluindo 423 isolados multirresistentes de cinco países da CPLP. Por forma a tornar estes dados disponíveis para a comunidade científica e autoridades de saúde pública, foi desenvolvida a CPLP-TB (disponível em http://cplp-tb.ff.ulisboa.pt), uma base de dados disponível online e provida de aplicativos para análise exploratória do conteúdo. Como ferramenta de saúde pública, espera-se que venha a contribuir para um conhecimento mais aprofundado da estrutura populacional do M. tuberculosis e circulação de estirpes na CPLP de forma a apoiar a avaliação de risco e tendências específicas para diversos clones. Tuberculosis (TB) remains a major health problem within the Community of Portuguese Language Speaking Countries (CPLP). Despite the marked variation in TB incidence across its member-states and continued human migratory flux between countries, a considerable gap in the knowledge on the Mycobacterium tuberculosis population structure and strain circulation between the countries still exists. To address this, we have assembled and analyzed the largest CPLP M . tuberculosis molecular and drug susceptibility dataset, comprised by a total of 1447 clinical isolates, including 423 multidrug-resistant isolates, from five CPLP countries. To make this data available to the scientific community and public health authorities we developed CPLP-TB (available at http://cplp-tb.ff.ulisboa.pt), an online database coupled with web-based tools for exploratory data analysis. As a public health tool, it is expected to contribute to improved knowledge on the M. tuberculosis population structure and strain circulation within the CPLP, thus supporting the risk assessment of strain-specific trends.publishersversionpublishe

Measurement of nuclear modification factors of gamma(1S)), gamma(2S), and gamma(3S) mesons in PbPb collisions at root s(NN)=5.02 TeV

The cross sections for ϒ(1S), ϒ(2S), and ϒ(3S) production in lead-lead (PbPb) and proton-proton (pp) collisions at √sNN = 5.02 TeV have been measured using the CMS detector at the LHC. The nuclear modification factors, RAA, derived from the PbPb-to-pp ratio of yields for each state, are studied as functions of meson rapidity and transverse momentum, as well as PbPb collision centrality. The yields of all three states are found to be significantly suppressed, and compatible with a sequential ordering of the suppression, RAA(ϒ(1S)) > RAA(ϒ(2S)) > RAA(ϒ(3S)). The suppression of ϒ(1S) is larger than that seen at √sNN = 2.76 TeV, although the two are compatible within uncertainties. The upper limit on the RAA of ϒ(3S) integrated over pT, rapidity and centrality is 0.096 at 95% confidence level, which is the strongest suppression observed for a quarkonium state in heavy ion collisions to date. © 2019 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.Peer reviewe

Measurement of the top quark forward-backward production asymmetry and the anomalous chromoelectric and chromomagnetic moments in pp collisions at √s = 13 TeV

Abstract The parton-level top quark (t) forward-backward asymmetry and the anomalous chromoelectric (d̂ t) and chromomagnetic (μ̂ t) moments have been measured using LHC pp collisions at a center-of-mass energy of 13 TeV, collected in the CMS detector in a data sample corresponding to an integrated luminosity of 35.9 fb−1. The linearized variable AFB(1) is used to approximate the asymmetry. Candidate t t ¯ events decaying to a muon or electron and jets in final states with low and high Lorentz boosts are selected and reconstructed using a fit of the kinematic distributions of the decay products to those expected for t t ¯ final states. The values found for the parameters are AFB(1)=0.048−0.087+0.095(stat)−0.029+0.020(syst),μ̂t=−0.024−0.009+0.013(stat)−0.011+0.016(syst), and a limit is placed on the magnitude of | d̂ t| < 0.03 at 95% confidence level. [Figure not available: see fulltext.