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- Accomplishing PROMISE, PROgrammable MIxed Signal ASIC Electronics FrameworkPublication . Berrojo, Luis; Veljkovic, Filip; Ayzac, Philippe; Maggioni-Mezzomo, Cecilia; Trouche, Christophe; Kakoulin, Michael; Franciscatto, Giancarlo; Berti, Laurent; Arslanov, Dmitry; Póvoa, Ricardo; Guilherme, Jorge; Roumkou, Anna; Tukkiniemi, KariThis paper presents the activities, current results and status of the PROMISE (PROgrammable MIxed Signal Electronics) project which started at the beginning of 2020 . The project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 870358. It’s tailored to bring to the space community a flexible, cost competitive mixed-signal ASIC architecture design ecosystem built on a portfolio of silicon qualified hardened IP blocks. It includes analogue IPs such as ADC, DAC, PLL, LDO, BG, LO, POR and HV MOS transistors. A digital embedded FPGA core provides a flexible programmable element and an NVM permits reconfiguration abilities without the need of using an external memory. All these elements are included on the PILOT Circuit ASIC that will be submitted to electrical validation and radiation testing as part of the qualification process of these basic elements for their future use as building blocks.
- Alergias “Alimentares” a MedicamentosPublication . Santo, Maria; Brás, Adriana; Casimiro, Andreia; Auxtero, Maria Deolinda; Figueiredo, Alexandra; Costa, Isabel Margarida
- Angioedema Laríngeo por Lúpus Eritematoso SistémicoPublication . Teles, Sofia Sousa; Ferraria, Lília; Neto, Mariana; Pires, Rafael; Couto, Ana Miguel; Oliveira, Leonor; Dias, Joana; Marcelo, David; Antunes, Luís
- Architectural Design for Heartbeat Detection Circuits using Verilog-A Behavioral ModelingPublication . Vieira, R.; Passos, F.; Póvoa, R.; Martins, R.; Horta, N.; Guilherme, J.; Lourenço, N.This work presents a study of two analog frontend circuit architectures for heartbeat detection. Both circuits present an amplification block as the first stage, followed by a band-pass filter. In the first, the heartbeat detection is done using an adaptive threshold based on pulse-width, whereas the heartbeat detection in the second is done using a sample and hold to find the maximum and minimum peak of each beating. Both architectures are modeled in Verilog-A and simulated using real-world ECG signals with different characteristics. This work studies possible fundamental analog circuit blocks suitable for wearable implementation. It evaluates critical performances requirements from the analysis of the behavior simulations. It was verified that the first circuit can properly detect heartbeats as long as the input-referred noise is below 21 μV, whereas the second one ensures it until 30 μV. The low cutoff frequency can be approximately 10 Hz without compromising the signal’s peaks, which means that these specifications can be relaxed substantially compared to systems intended to reconstruct the signal accurately.
- Bem-estar intergeracional no antropocenoPublication . Sousa Basto, RuiA presente investigação é realizada sob o efeito da notícia recente, publicada pelo Centro de Resiliência de Estocolmo, de que seis dos nove limites planetários foram ultrapassados por efeito do Antropoceno. Os três limites planetários que ainda não foram ultrapassados são a degradação da camada de ozono estratosférica, a carga atmosférica de aerossóis e a acidificação dos oceanos, que ainda se mantêm no espaço operacional seguro para a humanidade. O Antropoceno é o maior desafio ético-político que a humanidade alguma vez enfrentou. A sua natureza é polissémica, porque tanto poderá vir a significar a designação da Época geológica posterior ao Holoceno, quanto um conceito cultural que obriga a repensar a condição humana. O surgimento deste novo tempo resulta do facto de a humanidade se ter tornado uma força telúrica capaz de modificar as condições de funcionamento do sistema-Terra. A presente investigação analisa os impactos que o Antropoceno poderá vir a causar no bem-estar das gerações futuras, sejam estas próximas ou longínquas. Para esse objetivo, são analisadas as teorias do bem-estar humano mais significativas (hedonismo clássico de Bentham e Mill, satisfação das preferências/desejos informados e lista objetiva), a teoria das capacidades (capabilities) nas abordagens de Amartya Sen e Martha Nussbaum e a ética desenvolvida por Hans Jonas, de natureza ecocêntrica e transtemporal, debruçada sobre a relação entre a Natureza e a humanidade. Por fim, conclui-se que todas as teorias apresentam dificuldades conceptuais sobre o bem-estar intergeracional e admite-se a possibilidade de existência de um estado de acrasia coletiva que tem vindo a impedir a humanidade, ou os seus dirigentes e líderes, de agir no melhor interesse das gerações vindouras.
- Covid-19 in Portugal - Economical consequences (an approach)Publication . Silva, A. L.This work intends to show how the pandemic SARS-CoV-2, responsible for the disease Covid-19, has affected all the world in several domains, also, differently from country to country. In particular, the way it has affected the Portuguese life, mainly concerning the country’s Economy. It also shows the evolution of the transmissibility rate, the numbers of infected cases and deaths as well as the vaccination plan in Portugal, which was a case of success due the implementation of a Task Force with that focus. Knowing that different factors are contained in Economic concept, such as health, GDP, inflation, employment (most of it could be affected by Lockdown measures), tourism flow among others. An approach related to the evolution of the disease in Portugal will be presented in this article.
- Design of an Underactuated USV CatamaranPublication . Assunção, Mário; Teodoro, Pedro; Marat-Mendes, Rosa; Franco, VictorThe Sea2Future program was developed at ENIDH, since 2018, and it has involved the construction of an unmanned surface vehicle (USV) with the participation of students and teachers of this educational institution. This firstUSV, with two hulls, referred to as USV-enautica1, included a control system which allows it to carry out several functions autonomously and it was used to study the composite construction, the propulsion command and control architectures, the navigation algorithms, and the control systems. The challenge of designing a lightweight hull suitable for coastal and open ocean navigation is described and the implemented solution for the microcontroller and software operation, the sensors, the navigation, and the control systems are explained. The USV has successfully demonstrated its ability to be operated remotely, which is necessary to validate the hydrodynamic parameters, and afterwards the aim of autonomous operation.
- Desobediência civil do ativismo climático em contexto de acrasia coletiva a problemática da não-violênciaPublication . Sousa Basto, RuiUm estudo recente revela que os jovens sofrem de ansiedade climática e sentem-se traídos pelas gerações mais velhas, a quem acusam de não terem sabido preservar o bom funcionamento do sistema-Terra. Os coletivos em torno dos quais estes jovens se organizam alegam que se encontram esgotadas todas as vias de comunicação com os detentores do poder. Por essa razão, o ativismo climático protagonizado pelas gerações mais jovens tem-se intensificado um pouco por todo o mundo, mas com uma incidência especial nos países democráticos do espaço europeu, e destes, da União Europeia. Os alvos dos ativistas do clima são os agentes políticos e económicos, acusados de inação climática. Tudo leva a crer que os detentores do poder conhecem os danos que o atual modelo de desenvolvimento económico está a causar ao bom funcionamento do planeta, mas apesar desse conhecimento agem contra o seu melhor julgamento do que é correto, numa atitude que poderá ser classificada como de acrasia coletiva. As ações dos ativistas são empreendidas em duas frentes de batalha: a dos tribunais e a das ruas: nos tribunais, através do recurso às mais altas instâncias judiciais; nas ruas, por meio de ações de desobediência civil. Os protestos de rua realizados no espaço europeu têm merecido dos Estados uma resposta inadequada e desproporcional, na qual são usados meios de vigilância e repressão de combate ao terrorismo e às organizações criminosas. Neste contexto, é essencial que se reflita sobre as caraterísticas do conceito de desobediência civil em regimes democráticos liberais, principalmente a questão sensível da não-violência. Nesta investigação utilizou-se o método da pesquisa bibliográfica pela leitura, interpretação, reflexão e crítica de livros e artigos científicos dos principais autores dos assuntos tratados.
- Edge Computing and Internet of Things Based Platform to Improve the Quality of Life of the Silver Economy on Leisure Cruise ShipsPublication . Plaza-Hernández, Marta; Sittón-Candanedo, Inés; Alonso, Ricardo S.; Martínez-de Iturrate, Luis C.; Prieto, Javier; Kravari, KalliopiToday, the Internet of Things, Big Data and Machine Learning are a regular part of people's daily lives, especially for the elderly or the so-called Silver Economy. There are more and more applications in which collecting and storing information about users (and their context) to produce classifications and predictions allows the optimisation of the services offered, improving the life quality of the citizens. In this sense, leisure cruises represent environments where it is necessary to provide quality services for a reasonable price. This requires understandings the behaviour of users both locally (i.e. each cruise) and globally (i.e. all cruises). In this respect, IoT, Big Data and Machine Learning are presented as ideal technologies for prediction-making and the improvement of the quality of services. However, on ships at sea the transfer rate of the Internet connection is limited. In this sense, Edge Computing allows taking part in the application computing to the Edge of the network, closer to the IoT layer. Data can be filtered and pre-processed in the Edge before it is transmitted to the Cloud, reducing its volume and the associated costs of its computing and storage in the Cloud. Machine Learning algorithms can also be applied to recognise patterns and anomalies on the Edge itself, even if the connectivity with the Cloud is lost. In this paper, we propose the design of a platform which aims to improve the quality of life of the elderly on leisure cruises.
- Gait assessment using microwave radars mounted on standard walkerPublication . Postolache, Octavian; Pereira, José Dias; Viegas, Vítor—Gait rehabilitation is a complex process considering the complexity of movement that involves different parts of the human body. To assure the safety of the rehabilitation process walking aids are a common indication in clinics, the standard walker being one of the most prescribed taking into account its stability. Embedding sensors on the level of the walker can provide additional capabilities associated with gait monitoring that may be used to evaluate the user gait ehabilitation outcome. Sensing user motion during walker usage can be also used to avoid wrong usage that can conduct to falls. In the current study a standard walker with two Microwave Doppler radars was implemented to extract information on user gait during the rehabilitation process as well as information about the sequence of the standard walker usage. The signals acquired from the measurement channels were considered for time-frequency analysis, including features extraction such as mean instantaneous frequency (MIF) and mean instantaneous bandwidth (MIB) to characterize normal and abnormal gait. The capabilities of time-frequency analysis methods as the starting point on gait classification is also considered.
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