37 documents found, page 1 of 4
Proceedings of the CIDESD International Congress 2025
Marinho, Daniel Almeida; Viana, João; Mota, PaulaThe papers published in these proceedings were submitted to the Scientific Committee of the CIDESD International Congress 2025, held from June 5 to 7, at Covilhã, Portugal. Authors are exclusively responsible for the content of the manuscript published. The editors and the Scientific Committee of the CIDESD International Congress 2025 assume no responsibility for the opinions and statements expressed by the aut...
Exploring coping profiles in informal caregivers of people with dementia throug...
Gouveia, Tânia; Viana, João; Faria, Brígida; Teles, Soraia; Faria, Brigida MonicaInformal caregivers (IC) of people with dementia (PwD) handle multiple stressors with an acknowledged impact on their physical and mental health. health (1,2). Coping strategies may be viewed as the techniques employed by ICs to minimize distress associated with the caregiving experience. iSupport emerges as an online self-guided program developed by the World Health Organization (3) to provide support and trai...
Electroweak corrections to higgs boson decays in a complex singlet extension of...
Egle, Felix; Mühlleitner, Margarete; Santos, Rui; Viana, JoãoThe complex singlet extension CxSM of the Standard Model (SM) is a simple extension of the SM with two visible Higgs bosons in the spectrum and a Dark Matter (DM) candidate. In this paper we complete the computation of the next-to-leading (NLO) electroweak (EW) corrections to on-shell and non-loop-induced Higgs decays. Our calculations are implemented in the code EWsHDECAY which also includes the relevant QCD c...
Gravitational echoes of lepton number symmetry breaking with light and ultralig...
Addazi, Andrea; Marcianò, Antonino; Morais, António P.; Pasechnik, Roman; Viana, João; Yang, HaoWe formulate a version of the low-scale Majoron model equipped with an inverse seesaw mechanism featuring lepton-number preserving dimension-6 operators in the scalar potential. Contrary to its dimension-4 counterpart, we find that the model can simultaneously provide light and ultralight Majorons, neutrino masses and their mixing, while featuring strong first-order cosmological phase transitions associated to ...
Gentrificação no Bonfim: pesquisa visual sobre indícios e dinâmicas gentrificad...
Viana, JoãoO Gentrificação no Bonfim - Pesquisa Visual sobre Dinâmicas é um projeto fotográfico e editorial que explora dinâmicas de Gentrificação na Freguesia do Bonfim, cidade do Porto. Através da associação de metodologias de investigação particulares da Etnografia Visual, do registo fotográfico, a exploração da cidade através da uma metodologia andante e a articulação das descobertas através do Design de Comunicação, ...
Nationwide Access to Endovascular Treatment for Acute Ischemic Stroke in Portugal
Dias, Mariana Carvalho; Reis, Ricardo Soares dos; Santos, João Vasco; Nunes, Ana Paiva; Ferreira, Patricia; Maia, Bruno; Fragata, Isabel; Reis, JoaoIntroduction: Since the publication of endovascular treatment trials and European Stroke Guidelines, Portugal has re-organized stroke healthcare. The nine centers performing endovascular treatment are not equally distributed within the country, which may lead to differential access to endovascular treatment. Our main aim was to perform a descriptive analysis of the main treatment metrics regarding endovascular ...
Nationwide Access to Endovascular Treatment for Acute Ischemic Stroke in Portugal
Dias, Mariana Carvalho; dos Reis, Ricardo Soares; Santos, João Vasco; Nunes, Ana Paiva; Ferreira, Patricia; Maia, Bruno; Fragata, Isabel; Reis, JoaoIntroduction: Since the publication of endovascular treatment trials and European Stroke Guidelines, Portugal has re-organized stroke healthcare. The nine centers performing endovascular treatment are not equally distributed within the country, which may lead to differential access to endovascular treatment. Our main aim was to perform a descriptive analysis of the main treatment metrics regarding endovascular ...
One-loop corrections to the Higgs boson invisible decay in a complex singlet ex...
Egle, Felix; Muhlleitner, Milada; Santos, Rui; Viana, JoãoThe search for dark matter (DM) at colliders is founded on the idea of looking for something invisible. There are searches based on production and decay processes where DM may reveal itself as missing energy. If nothing is found, our best tool to constrain the parameter space of many extensions of the Standard Model (SM) with a DM candidate is the Higgs boson. As the measurements of the Higgs couplings become i...
Impact of SM parameters and of the vacua of the Higgs potential in gravitationa...
Freitas, Felipe F.; Lourenço, Gabriel; Morais, António P.; Nunes, André; Olívia, João; Pasechnik, Roman; Santos, Rui; Viana, JoãoIn this work we discuss two different phases of a complex singlet extension of the Standard Model (SM) together with an extension that also includes new fermion fields, in particular, a Majoron model equipped with an inverse seesaw mechanism. All considered scenarios contain a global U(1) symmetry and allow for first-order phase transitions while only two of them are strong enough to favour the detection of pri...
Impact of SM parameters and of the vacua of the Higgs potential in gravitationa...
Freitas, Felipe F.; Lourenço, Gabriel; Morais, António P.; Nunes, André; Olívia, João; Pasechnik, Roman; Santos, Rui; Viana, JoãoIn this work we discuss two different phases of a complex singlet extension of the Standard Model (SM) together with an extension that also includes new fermion fields, in particular, a Majoron model equipped with an inverse seesaw mechanism. All considered scenarios contain a global $\mathrm{U}(1)$ symmetry and allow for first-order phase transitions while only two of them are strong enough to favour the detec...