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Ana Filipa Valente (Instituto Superior Técnico)29/06/2022, 09:00
Transport networks are some of the many dynamical systems that can be described using networks and graphs, and key aspects of these networks can be described using hydrodynamical equations. Specifically, some can be described using the Hagen-Poiseuille law, like blood network models or network models that describe Physarum polycephalum, an acellular protist that grows in a network-like...
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Milton Freitas29/06/2022, 09:12
As particles coming from space with center-of-mass energies up to 400 TeV (well above the limits of current man-made accelerators), the Ultra High Energy Cosmic Rays detected at the Pierre Auger Observatory are currently one of the most important research objects in Astroparticle physics.
In recent works, it has been demonstrated that the muon number distribution at the ground can be used...
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António Rodrigues29/06/2022, 09:24
Energy, in particular renewable energy, is one of the areas whose development will have a very significant impact on our way of life. Today we are looking for the solution to global warming and other problems of our planet in it. Intelligent and planned management of these types of resources is also necessary to obtain the best possible use. One idea that has been developed in some countries...
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Luís Martins (Instituto Superior Técnico)29/06/2022, 09:36
Unpatterned magnetic tunnel junctions using compound free layers based on CoFeB, along with NiFe or CoFeBTa were studied magnetically to compare their behaviour in a linear region, with the goal of identifying which would be more adequate for magnetic sensors. These materials were selected with the prospect of obtaining lower coercivity in this linear region while minimizing electrical noise....
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Raul Pombo Monteiro29/06/2022, 09:48
Deep neural networks research has thrived since AlexNet (Krizhevsky et al., 2012) outperformed classical computer vision techniques in the ImageNet Large Scale Visual Recognition Challenge in 2012. The latter used tailored feature extraction algorithms, whereas AlexNet only resorted to the depth of the model to achieve such high performance. Since then, deep neural networks have been broadly...
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Diana Sofia De Oliveira Bernardo29/06/2022, 10:00
Wolff-Parkinson-White (WPW) syndrome is a rare congenital heart disease characterized by the presence of an accessory pathway (AP) between the atria and the ventricles, causing abnormal conduction of electric signals in the heart and eventually episodes of tachyarrhythmias. The treatment of choice for people with this syndrome is radiofrequency catheter ablation of the AP. The success of this...
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Francisca Santos29/06/2022, 10:12
After the Galileo mission, launched in 1989, provided strong evidence of the existence of oceans beneath the icy crust of Jupiter's moons, Europa, Ganymede and Callisto, these icy worlds were hypothesised to be habitable. As a result, on April 2023, ESA will launch the JUICE mission to explore the icy moons of Jupiter and the gas giant itself.
In my Master thesis project, one of the main...
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Sofia Cardoso29/06/2022, 10:24
Radiotherapy is one of the most effective techniques used to fight cancer and one of the most chosen options. It uses high doses of ionizing radiation to damage cancer cells. However, some cancer types are radioresistant. In this context, radiosensitizers may play a crucial role to improve therapeutic outcomes. G-quadruplex DNA ligands have emerged as good candidates. The aim of the thesis is...
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Rafael Valente29/06/2022, 10:55
With ITER's first full power fusion operation scheduled for 2035, it is essential to perfect and understand the mechanisms of some promising operational regimes, as well as understand their scalability to future reactors.
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The EDA H-mode regime, originally discovered at MIT’s Alcator C-mod tokamak and recently at the ASDEX Upgrade tokamak at the Max-Plank institute for plasma physics, ... -
José Manuel Leiria Amoreira29/06/2022, 11:07
Understanding the stellar magnetic activity phenomena (such as spots, faculae, plages, flares) is very important for different fields of stellar and exoplanetary astrophysics, and for planetary climate studies. Studying magnetic activity on stars of different stellar parameters and activity levels provides an opportunity for detailed tests of stellar/solar dynamo models. From the exoplanetary...
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Henrique Legoinha (LIP - Laboratorio de Instrumentação e Física Experimental de Partículas (PT))29/06/2022, 11:19
The quark-gluon plasma, a very exotic state of matter usually referred to as QGP, is expected to form under extreme conditions of temperature and pressure, just like the ones in the primordial universe or those at the core of a neutron star. Although Earth conditions are very different, here, Ultra Relativistic Heavy Ion Collisions allow to recreate such medium. Using the CMS detector at the...
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José Maria Cruz29/06/2022, 11:31
Condensed matter physics is the study of collective emergent states of matter. The field is enormously rich ranging over solid state physics including superconductivity and magnetism, quantum liquids, and topological states of matter.
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Certain interacting quantum systems can be described at low energies in terms of emergent gauge theory.
Such effective theories can range from the... -
João Sieiro dos Santos (Centro de Astrofísica e Gravitação-CENTRA, Departamento de Física, Instituto Superior Técnico-IST, Universidade de Lisboa-UL, Avenida Rovisco Pais 1, 1049-001 Lisboa, Portugal)29/06/2022, 11:43
Detection of cosmic rays with very high energies, up to $10^{20}$ eV, has been present in the literature for a long time [1]. Many processes have been proposed as sources for these high energy particles but no fully satisfactory explanation has been provided. The Penrose process [2,3] makes use of the possibility to have negative energy particles in the ergoregion of a rotating black hole to...
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Lénea Luís (IST)29/06/2022, 11:55
The Quark-Gluon Plasma (QGP) is predicted to be the predominant state of matter at a few microseconds after the Big Bang, being the earliest stage of the Universe known so far. This state of QCD matter can be produced in ultra-relativistic heavy ion collisions, such as those in the Large Hadron Collider (LHC) or in the Relativistic Heavy-Ion Collider (RHIC). Since this medium is very...
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Eduardo Bastiana29/06/2022, 12:07
Blockchain and Decentralized Autonomous Organizations (DAOs) as concepts have gained increased popularity in the last 15 years, with the use of this structures becoming prominent in the financial industry. Although further uses have been researched and a variety of implementations, from financial to utilities, have been idealized, the use of blockchain and DAOs applied to energy system’s...
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Ricardo Amadeu (IST/CFTP)29/06/2022, 12:19
The Standard Model (SM) of particle physics successfully describes the electroweak (EW) and strong interactions among the elementary particles known to mankind. However, physical phenomena such as the baryon assymetry of the Universe (BAU), the existence of dark matter and neutrino oscillations require Beyond the SM (BSM) theories in order to be explained. Vector-like fermions are hypothetical...
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