4 documents found, page 1 of 1
A meta-model to predict the drag coefficient of a particle translating in visco...
Faroughi, Salah A.; Roriz, Ana Isabel Araújo; Fernandes, CélioThis study presents a framework based on Machine Learning (ML) models to predict the drag coefficient of a spherical particle translating in viscoelastic fluids. For the purpose of training and testing the ML models, two datasets were generated using direct numerical simulations (DNSs) for the viscoelastic unbounded flow of Oldroyd-B (OB-set containing 12,120 data points) and Giesekus (GI-set containing 4950 da...
HAMMAN’S SYNDROME (SPONTANEOUS PNEUMOMEDIASTINUM)
Santos, Sónia; Ribeiro Santos, Cátia; Monteiro, Joana Raquel; Salgueiro, Sónia; Fernandes, CélioThe authors present the case of a previously healthy, 22-year-old male nonsmoker who sought emergency room treatment complaining of retrosternal pain. He reported a history of odynophagia two days before, followed by productive cough, fever and dyspnea. On chest radiography, a line could be observed surrounding the heart and the continuous diaphragm sign. The chest computed tomography scan confirmed the presenc...
Posterior Reversible Encephalopathy Syndrome: A Case of Hypercalcemia
Ponciano, Ana; Vieira, Vera; Leite, José; Fernandes, CélioPosterior reversible encephalopathy syndrome is an encephalopathy that can be clinically characterized by headache, altered mental status and/or seizures. Neuroimaging demonstrates usually reversible bilateral subcortical vasogenic occipital-parietal edema. Exact pathophysiology remains unclear but is commonly associated with hypertension, renal failure, sepsis and use of immunosuppressive therapy. Its developm...
Secondary Hypogonadism – clinical case
Gomes, Odete; Monteiro, Catarina; Leite, José; Fernandes, Céliomale, admitted in the Emergency Department with a fl u-like syndrome.On physical examination hypogonadism was recorded: high-pitched voice, absence of terminal hair and decreased body hair, decreased muscle mass and fat distribution over hips and chest, arm span exceeding height, gynaecomastia and micropenis. Hyposmia was also present.The serum total and free testosterone levels, as well the serum LH and FSH le...