102 documents found, page 1 of 11
A política de dividendos das empresas da Euronext perante a crise de Covid-19
Ribeiro, Bruno; Costa, LuísObjetivo: Este estudo visa analisar o impacto que a pandemia de Covid-19 teve na política de dividendos das empresas cotadas na Euronext.Metodologia: A metodologia baseia-se essencialmente no modelo de dados em painel e no modelo dos mínimos quadrados para analisar o impacto que os indicadores económico-financeiros das empresas exercem na sua política de dividendos.Resultados: Este estudo demonstrou que a pande...
The Covid-19 recession in Germany : a macropidemiological analysis
Krause, Willi; Costa, Luís; Costa Filho, João RicardoWhat are the drivers of output fluctuations in Germany during the COVID-19 pandemic? We develop a macro-epidemiological model based on the evidence that efficiency and labor wedges are the key distortions in the neoclassical growth model that account for the GDP dynamics during the period. We find that the consumption and laborsupply effects of containment policies and the endogenous responses of households to ...
Integration of managed aquifer recharge into the water supply system in the Alg...
Standen, Kathleen; Costa, Luís; Hugman, Rui; Monteiro, José PauloThe Algarve region of Portugal is experiencing severe water scarcity with existing water supplies insufficient to meet demand, with limited resilience to drought. Managed aquifer recharge (MAR) can provide intermediate storage and bridge the gap between water availability and demand, with success depending on the water available and the aquifer capacity to accept and store the water. We present the results of a...
Integration of managed aquifer recharge into the water supply system in the Alg...
Standen, Kathleen; Costa, Luís; Hugman, Rui; Monteiro, José PauloThe Algarve region of Portugal is experiencing severe water scarcity with existing water supplies insufficient to meet demand, with limited resilience to drought. Managed aquifer recharge (MAR) can provide intermediate storage and bridge the gap between water availability and demand, with success depending on the water available and the aquifer capacity to accept and store the water. We present the results of a...
A methodological proposal to address the academic dropout phenomenon based on a...
Villa-Murillo, Adriana; Costa, Luís; Vásquez, CarlosIntroduction: University dropout is now considered a complex phenomenon that goes beyond the number of students not enrolled and that is continuously growing, especially in the first years of study. Objective: In the present study, a prediction model combining Survival Analysis, Decision Trees, and Random Forest, under the Machine Learning philosophy, is proposed for the early diagnosis of possible factors caus...
P-9 IMPORT NCIA DA FORMAÇÃO DO INSTRUTOR NO PROCESSO DE APRENDIZAGEM
Costa, Luís; Santos, Isabel; Gonçalves, PaulaEste trabalho tem como objetivo uma reflexão acerca da formação dos instrutores num contexto de ensino de competências médicas. Pretende ainda demonstrar a importância de estruturar este percurso para que os instrutores sejam elementos facilitadores e não obstáculos à aprendizagem. Teremos com o pano de fundo desta reflexão, o percurso de um instrutor certificado pelo European Resuscitation Council (ERC). O ERC...
360 Health Analysis (H360) — a comparison of key performance indicators in brea...
Rego, Inês Brandão; Coelho, Sara; Semedo, Patrícia Miguel; Cavaco-Silva, Joana; Teixeira, Laetitia; Sousa, Susana; Reis, Joana; Dinis, RuiBackground: The increased focus on quality indicators (QIs) and the use of clinical registries in real-world cancer studies have increased compliance with therapeutic standards and patient survival. The European Society of Breast Cancer Specialists (EUSOMA) established QIs to assess compliance with current standards in breast cancer care. Methods: This retrospective study is part of H360 Health Analysis and aim...
Remote teaching in times of COVID-19: teachers’ adaptation and pupil level of p...
Flores, Maria Assunção; Barros, Alexandra; Veiga Simão, Ana Margarida; Pereira, Diana; Gago, Marília; Fernandes, Eva Lopes; Ferreira, Paula da CostaThis article draws on data from a broader research study focusing on Portuguese teachers’ perceptions and experiences of remote teaching during the COVID-19 pandemic. In total, 2638 teachers participated in the study. Data were collected through an online survey which included both closed- and open-ended questions. Findings suggest that, overall, teachers experienced a positive adaptation process and were able ...
Tratamento do Cancro da Mama HER2-Positivo: Posicionamento de um Painel de Peritos
Afonso, Noémia; Cortes, Paulo; Cardoso, Fátima; Costa, Luís; Coutinho, Camila; Moreira, António; Passos Coelho, José Luís; Pereira, DeolindaThe overexpression of the human epidermal growth factor receptor type 2 (HER2) is present in 20% of all breast cancers and has known prognostic value, associated with a higher risk of recurrence and mortality. Management of these patients has evolved significantly in recent years due to advances in the identification of biomarkers and in treatment efficacy. This article reviews key aspects of the neoadjuvant an...
Nannochloropsis sp. Biorefinery: Recovery of Soluble Protein by Membrane Ultraf...
Ribeiro, Cláudia; Santos, Edgar T.; Costa, Luís; Brazinha, Carla; Saraiva, Pedro; Crespo, João GThis work proposes a way to maximize the potential of a Nannochloropsis sp. biorefinery process, through membrane technology, producing an extract enriched in soluble proteins, free from the insoluble protein fraction, with a low lipid content and eliminating the colored chlorophyll-a. This procedure, following the principles of a circular economy approach, allows for the valorization of a stream from the biore...