56 documents found, page 1 of 6
The MFS-SVD method for the laplace equation in three dimensions
Antunes, Pedro; Santos, Vinicius; Serranho, PedroThe method of fundamental solutions (MFS) has been widely used to numerically solve boundary value problems involving linear partial differential equations. This method is easy to implement computationally and can be very effective for smooth domains and boundary conditions. The main drawback of the MFS is the ill-conditioning of the associated matrices, which may deteriorate the method’s accuracy. We present t...
Real-time rail electrification systems monitoring: a review of technologies
Sainz-Aja, Jose Adolfo; Pombo, João; Brant, Jordan; Antunes, Pedro; Rebelo, José M.; Santos, José; Ferreño, DiegoMost electrified railway networks are powered through a pantograph–overhead contact line (OCL) interface to ensure safe and reliable operation. The OCL is one of the most vulnerable components of the train traction power system as it is subjected to multiple impacts from the pantographs and to unpredictable environmental conditions. Wear, mounting imperfections, contact incidents, weather conditions, and inadeq...
Changes In HER2 And Hormonal Receptors Biomarkers After Neoadjuvant Chemotherap...
Ferreira Pinto, Paula; Peyroteo, Mariana; Castro, Luís; Canotilho, Rita; Correia, Ana Margarida; Baía, Catarina; Ribeiro, Cátia; Antunes, Pedro Introduction: Breast cancer biological subtype has an important impact in the definition of the treatment strategy and the prognosis. However, the influence of neoadjuvant chemotherapy in the immunohistochemistry profile of the tumor is not well clarified. This study aims to evaluate the incidence of immunohistochemistry profile changes after neoadjuvant chemotherapy and the impact of these changes in adj...
Inquérito de satisfação com a analgesia de trabalho de parto: técnica combinada...
Almeida Carvalho, Sofia; Fernandes Ferraz, Inês; Carrão, André; Antunes, Pedro; Martins, Patrícia; Manuel Marques, MariaIntrodução: A satisfação do doente é um indicador de qualidade dos cuidados de saúde, pelo que é essencial a sua parametrização. A evidência relativamente à preferência pela técnica epidural ou pela técnica combinada enquanto analgesia de trabalho de parto do neuro-eixo permanece controversa. O objetivo do nosso estudo foi avaliar o grau de satisfação para cada uma das técnicas na nossa instituição. Métodos: Pr...
Effects of a physical exercise program on quality of life and physical fitness ...
Joaquim, Ana; Amarelo, Anabela; Antunes, Pedro; Garcia, Catarina; Leão, Inês; Vilela, Eduardo; Teixeira, Madalena; Duarte, Bárbara; Vieira, MicaelTo assess the effects of a group class physical exercise program on health-related quality of life (HRQOL), physical fitness and activity, and safety in early breast cancer women after treatment, a double phase trial [16-week control phase (CP) followed by a 16-week intervention phase (IP)] was designed. Outcomes were evaluated at baseline (T1), 8 (T2) and 16 (T3) weeks (CP), and 24 (T4) and 32 (T5) weeks (IP)....
Multiscale modelling of the thermoelastic properties of alumina-zirconia cerami...
Carmo, Gustavo P.; Mesquita-Guimarães, Joana; Baltazar, Joana; Olhero, Susana M.; Antunes, Pedro; Torres, Paula M.C.; Gouveia, SóniaAdditive manufacturing appears to facilitate the accurate manufacturing of alumina-zirconia technical ceramics. Nevertheless, the fine tuning of the manufacturing of these components by 3D printing requires an analysis of the parameters that influence their final thermoelastic properties. In this context, this work presents the application of (finite element-based) numerical procedures that aim at the predictio...
CONSENSUS||RECOMMENDATIONS OF THE PORTUGUESE SOCIETY OF ANESTHESIOLOGY FOR THE ...
Paulino, Ana; Fortunato, Magna; Lança, Filipa; Pires, Ivo; Rego, Luísa; Nave, Patrícia; Rodrigues, Diana; Taleço, Tiago; Ana Correia Batista, AnaA decisão sobre o momento de um procedimento eletivo após infeção por SARS-CoV-2 deve ser multidisciplinar, centrada no doente. Na avaliação do risco/benefício de um adiamento devem ser ponderados: risco de progressão da patologia de base; tempo decorrido após a infeção por SARS-CoV-2; risco infecioso; gravidade da apresentação clínica inicial da COVID-19; persistência de sintomas; estado clínico e de fragilida...
POST-OPERATIVE COMPLICATIONS IN RISK SURGICAL PATIENTS ADMITTED TO THE INTERMED...
Lara Santos, Lúcio; Castro, Carolina; Santos, Fátima; Salomé Santos, Carla; Reis, Joaquim; Antunes, Pedro; Carvalho Martins, PedroKnowing the surgical burden and risk profile of surgical complications is mandatory to support the effective organization of perioperative care. The purpose of this work was to characterize the complication’s profile of patients admitted and treated in the years 2017 and 2018 in the surgical intermediate care unit (SICU) at our institution. The clinical records of surgical patients admitted to the intermediate ...
Impact of physical exercise programs in breast cancer survivors on health-relat...
Joaquim, Ana; Leão, Inês; Antunes, Pedro; Capela, Andreia; Viamonte, Sofia; Alves, Alberto J.; Helguero, Luísa A.; Macedo, AnaBackground: Breast cancer is the most common cancer worldwide, and despite remarkable progress in its treatment, the survivors' quality of life is hampered by treatment-related side effects that impair psychosocial and physiological outcomes. Several studies have established the benefits of physical exercise in breast cancer survivors in recent years. Physical exercise reduces the impact of treatment-related ad...
THE MALIGNANCY OF A BENIGN TUMOR
L. Antunes, André; Prieto, David; Antunes, PedroA 67-year-old man with fatigue and dyspnea, in NYHA class IV, was admitted to our hospital. His evaluation, physical examination, and other investigations were carried out. An atypical finding was found and he was referred for cardiac surgery.