Timor em Portugal – heterotopia de um sexto império

This paper aims to analyze how the solidarity movement for East Timor, held in Portugal in 1999, was a moment of national reflexivity. According to this purpose, historical and cultural relations between Portugal and its former colony are taken into consideration, as well as the media coverage of the events in East Timor and Portugal after the referendum for self-determination of the East Timorese. Considering the actions and meanings produced within the movement in support of the Timorese people, we can say that this is a reconfiguration of the Portuguese identity, driven to the values of democracy and human rights.Este trabalho tem por objectivo analisar como o movimento de solidariedade por Timor, ocorrido em Portugal, em 1999, constituiu um momento de reflexividade nacional. Para tal, é tida em consideração a relação histórica e cultural de Portugal com a ex-colónia e a mediatização dos acontecimentos, em Timor e Portugal, depois do referendo pela auto-determinação de Timor-Leste. Considerando as acções e sentidos produzidos no contexto do movimento de apoio ao povo timorense, podemos dizer que estamos perante uma reconfiguração identitária dos portugueses, centrada nos valores da democracia e dos direitos humanos

Sustentabilidade de sistemas geotérmicos superficiais: estudos aplicados a climas do sul da Europa

Mestrado em Engenharia CivilO desenvolvimento deste trabalho teve como principal interesse providenciar um melhor conhecimento relativamente a sistemas geotérmicos superficiais com aplicação em climas da Europa do sul. De entre várias vertentes de estudo, todo o trabalho de análise foi centrado no comportamento de um determinado solo relativamente a variações de temperatura, recriando deste modo um sistema geotérmico com aplicação em climas da Europa do sul. Esta análise baseou-se numa primeira instância na caracterização física do solo, permitindo deste modo a criação de um modelo em laboratório (instrumentação) e de um modelo numérico (modelação). A partir destes modelos, realizou-se uma comparação entre os dados obtidos em laboratório com os dados obtidos das modelações criadas, com o objetivo de se determinar as propriedades térmicas do solo utilizado para o caso de estudo.The development of this work had as main interest to provide a better knowledge regarding superficial geothermal systems with application in climates of south Europe. From the analysis of several studies, all the work of analysis was focused on the behavior of a certain soil relative to temperature variations, recreating a geothermal system with application in climates of south Europe. This analysis was based on a first instance in the physical characterization of the soil, allowing the creation of a laboratory model (instrumentation) and a numerical model (modeling). From these models, a comparison was made between the data obtained in the laboratory and the data obtained from the created models, in order to determine the thermal properties of the soil used for the case of study

WRC Vodafone Rally de Portugal fostering tourism development

Events influence the destinations that host them. It was therefore considered interesting to analyze the influence of the Portuguese Rally sports’ event at Porto. This research aims at evaluating the role of the Rally of Portugal in Porto as a tourism destination. It aims to identify the stakeholders’ opinion regarding the impact of the Rally of Portugal on tourism demand in the city of Porto, to evaluate the impact of the Rally of Portugal in Porto as a destination, to identify the conditioning components of the realization of the Rally of Portugal, and to perceive strategies to be applied in future editions, in less secure contexts. A qualitative methodology was used for data collection, through the convenience sampling method, according to the availability of the participants. Individual semi-structured online interviews using the Zoom platform were applied to event organizers, a former pilot, and a pilot of the event. It was verified that the Porto Street Stage, stage of the Rally of Portugal that takes place in the city of Porto, presents many positive impacts for the destination, which in the perspective of the organization include the international projection of the city of Porto (through the presence of the specialized international press), with passage of the circuit by the main urban tourism resources, increase of income, complementary social programs to the event, and pride of the resident community, regarding the reception of the event. From this perspective, the fact that the event was not held in 2020 due to the SARS-CoV-2 virus was significantly reflected in the absence of revenue at the destination, with a negative impact in organizational terms, given the advanced state of this process when the event was canceled, in particular the stages of route definition, budgeting, and communication/dissemination, with the involvement of specialized teams.info:eu-repo/semantics/publishedVersio

Mobile robot for autonomous golf balls picking

This paper describes a robot to collect golf balls in a driving range, operating as autonomous and/or remotely operated. It uses a set of sensors which gives the robot capacities of surrounding environment perception and digital image processing to search for the balls in places with higher concentrations of balls. This system avoids stopping the players for ball collection permitting a higher use rate of the field

Perceptions of COVID-19's impact on outdoor tourism in the Peneda-Gerês National Park

Numa altura em que o Mundo é afetado por uma pandemia e as medidas de proteção passam pelo distanciamento social, higienização e desinfeção de espaços e equipamentos, o setor do turismo está exposto a inúmeros obstáculos. A insegurança causada pela pandemia afetou os indicadores do turismo um pouco por todo o Mundo, tornando, portanto, premente a necessidade de aferir o impacto efetivo da COVID-19 no setor do turismo bem como no turismo outdoor, especificamente no Parque Nacional da Peneda Gerês (PNPG), na região da Serra do Gerês. Foi elaborado um estudo de natureza exploratória constituído por análise documental e entrevistas a agentes conhecedores das dinâmicas do PNPG, relativamente à prática de turismo outdoor. Os resultados provenientes do presente estudo apontam para um aumento do número de visitantes do Parque nos meses de verão, sobretudo portugueses, fator este justificável pelas limitações em viajar para o estrangeiro. Devido ao cancelamento de eventos de atividades outdoor, o número de visitantes diminuiu significativamente, sobretudo nos meses de época baixa, contribuindo para o aumento da sazonalidade. Por outro lado, nos meses de época alta, verificou-se que o número de participantes em atividades de turismo outdoor operadas pelas empresas de animação turística aumentou relativamente ao período homólogo do ano anterior.At a time when the world is a ected by a pandemic and protection measures include social distance, sanitation and disinfection of spaces and equipment, the tourism sector is exposed to numerous obstacles. Insecurity caused by the pandemic has a ected tourism indicators all over the world, thus making the need to assess the e ective impact of COVID-19 in the tourism sector as well as in outdoor tourism, speci cally in the Peneda Gerês National Park (PGNP), in Gerês mountain range. An exploratory study was carried out, consisting of documentary analysis and interviews to agents who know the dynamics of the PGNP, in relation to the practice of outdoor tourism. The results from the present study point to an increase in the number of visitors to the Park in the summer months, especially Portuguese, which was to be expected in view of the limitations in traveling abroad. Due to the cancellation of outdoor activities events, the number of visitors decreased signi cantly, especially in the low season months, contributing to the increase in seasonality. On the other hand, in the high season months, it was found that the number of participants in outdoor tourism activities operated by tourist entertainment companies increased compared to the same period of the previous yearinfo:eu-repo/semantics/publishedVersio

Contributos para a compreensão da população desempregada: o papel dos padrões de crenças motivacionais

This article focuses on a phenomenon that has been worrying the current society - unemployment, considering and clarifying concepts associated with this phenomenon. Thus, it will be made a brief discussion on the emergence of the problem, namely the socio-economic situation of present times, as well as analyzing the changes in the concept of career. In an attempt to understand the issues related to unemployment, one will seek to describe the impact of both unemployment and job insecurity upon individuals in order to deepen our understanding of the population unemployed. Stressing the centrality that work takes on peoples´ lives, we will also address the most important mediators of occupational reintegration, intending to make contributions toward the understanding of psychosocial factors involved in job-searching activities and consequently helping individuals in the transition from unemployment to work. KEY-WORDS: unemployment; boundarylessCet article se concentre sur un phénomène qui a le plus inquiété la société actuelle - le chômage. Ainsi, il fera une brève incursion sur l’émergence du problème, à savoir la situation socio-économique d’aujourd’hui et l’analyse de l’évolution de la notion de carrière. Dans une tentative de comprendre ce qui se dit, quand il se concentre sur les questions du chômage, il va chercher à décrire l’impact des indemnités de chômage et la insécurité de l’emploi sur des personnes. Par conséquent, confirmant le rôle central que le travail prend dans la vie des individus, tout en favorisant l’organisation personnelle et sociale, nous aborderons également les médiateurs les plus importants de la réinsertion professionnelle, avec l’intention de verser des contributions à la compréhension des facteurs psychosociaux impliqués dans les activités de recherche d’emploi et par conséquent aider les personnes dans la transition du chômage à l’emploi.Este artigo apresenta uma reflexão sobre um dos fenómenos que mais tem inquietado a sociedade actual - o desemprego, considerando e clarificando conceitos a este fenómeno associados. Assim, proceder-se-á a uma breve incursão sobre a emergência do problema, isto é, à conjuntura socioeconómica da actualidade, analisando as mutações de que o conceito de carreira se tem revestido. Na tentativa de compreender de que se fala, quando se incide sobre a temática do desemprego, procurar-se-á descrever o impacto quer do desemprego, quer da insegurança laboral nos indivíduos, explorando e apresentando os principais contributos da literatura para a compreensão da população desempregada. Consequentemente, corroborando a centralidade que o trabalho assume na vida dos indivíduos, enquanto promotor da organização pessoal e social, é também propósito deste artigo enunciar, com base na revisão da literatura, alguns mediadores promotores da reinserção profissional das pessoas desempregadas, pretendendo contribuir para a compreensão dos processos psicossociais envolvidos na estimulação da pro-actividade na procura de emprego e consequente reinserção profissional

Evaluation of push and pull communication models on a VANET with virtual traffic lights

It is expected in a near future that safety applications based on vehicle-to-everything communications will be a common reality in the traffic roads. This technology will contribute to improve the safety of vulnerable road users, for example, with the use of virtual traffic light systems (VTLS) in the intersections. This work implements and evaluates a VTLS conceived to help the pedestrians pass safely the intersections without real traffic lights. The simulated VTLS scenario used two distinct communication paradigms—the pull and push communication models. The pull model was implemented in named data networking (NDN), because NDN uses natively a pull-based communication model, where consumers send requests to pull the contents from the provider. A distinct approach is followed by the push-based model, where consumers subscribe previously the information, and then the producers distribute the available information to those consumers. Comparing the performance of the push and pull models on a VANET with VTLS, it is observed that the push mode presents lower packet loss and generates fewer packets, and consequently occupies less bandwidth, than the pull mode. In fact, for the considered metrics, the VTLS implemented with the pull mode presents no advantage when compared with the push mode.This work has been supported by national funds through FCT—Fundação para a Ciência e Tecnologia within the Project Scope: UID/CEC/00319/2020 and by the European Structural and Investment Funds in the FEDER component, through the Operational Competitiveness and Internationalization Programme (COMPETE 2020) [Project nº 039334; Funding Reference: POCI-01-0247-FEDER-039334]

Development of capacitive-type sensors by electrochemical anodization: Humidity and touch sensing applications

This work describes the development of a capacitive-type sensor created from nanoporous anodic aluminium oxide (NP-AAO) prepared by the one-step anodization method conducted in potentiostatic mode and performed in a low-cost homemade system. A series of samples were prepared via an anodization campaign carried out on different acid electrolytes, in which the anodization parameters were adjusted to investigate the effect of pore size and porosity on the capacitive sensing performance. Two sensor test cases are investigated. The first case explores the use of highly uniform NP-AAO structures for humidity sensing applications while the second analyses the use of NP-AAO as a capacitive touch sensor for biological applications, namely, to detect the presence of small "objects " such as bacterial colonies of Escherichia Coli. A mathematical model based on equivalent electrical circuits was developed to evaluate the effect of humidity condensation (inside the pores) on the sensor capacitance and also to estimate the capacitance change of the sensor due to pore blocking by the presence of a certain number of bacterial microorganisms. Regarding the humidity sensing test cases, it was found that the sensitivity of the sensor fabricated in a phosphoric acid solution reaches up to 39 (pF/RH%), which is almost three times higher than the sensor fabricated in oxalic acid and about eight times higher than the sensor fabricated in sulfuric acid. Its improved sensitivity is explained in terms of the pore size effect on the mean free path and the loss of Brownian energy of the water vapour molecules. Concerning the touch sensing test case, it is demonstrated that the NP-AAO structures can be used as capacitive touch sensors because the magnitude of the capacitance change directly depends on the number of bacteria that cover the nanopores; the fraction of the electrode area activated by bacterial pore blocking is about 4.4% and 30.2% for B1 (E. Coli OD600nm = 0.1) and B2 (E. Coli OD600nm = 1) sensors, respectively.This research was funded by: the Portuguese Foundation for Science and Technology (FCT) under the strategic funding grants UIDB/04029/2020, UIDB/04650/2020 and UIDB/04469/2020 units; and, the European Regional Development Fund under the scope of Norte2020 program grant NORTE-01-0145-FEDER-000004, BioTecNorte