11 documents found, page 1 of 2
Recent Advances of PDMS In Vitro Biomodels for Flow Visualizations and Measurem...
Souza, Andrews; Nobrega, Glauco Tapijara Vallicelli; Neves, Lucas Boniatti; Barbosa, Filipe; Ribeiro, J.E.; Ferrera, Conrado; Lima, Rui A.Polydimethylsiloxane (PDMS) has become a popular material in microfluidic and macroscale in vitro models due to its elastomeric properties and versatility. PDMS-based biomodels are widely used in blood flow studies, offering a platform for improving flow models and validating numerical simulations. This review highlights recent advances in bioflow studies conducted using both PDMS microfluidic devices and macro...
Experimental Investigation of Green Nanofluids: Assessment of Wettability, Visc...
Nobrega, Glauco; Cardoso, Beatriz D.; Barbosa, Filipe; Pinho, Diana; Abreu, Cristiano; Souza, Reinaldo Rodrigues de; Moita, Ana S.; Ribeiro, J.E.Metallic nanoparticles are a type of nanomaterial synthesized from metallic precursors. Due to their unique physiochemical, electrical, and optical properties, metallic nanoparticles are widely studied and applied in various areas such as medicine, electronics, and heat transfer systems. However, conventional synthesis methods to produce metallic nanoparticles face challenges such as instability and environment...
Recent advances of PDMS in vitro biomodels for flow visualizations and measurem...
Souza, Andrews; Nobrega, Glauco; Neves, Lucas B.; Barbosa, Filipe; Ribeiro, João; Ferrera, Conrado; Lima, Rui Alberto Madeira MacedoPolydimethylsiloxane (PDMS) has become a popular material in microfluidic and macroscale in vitro models due to its elastomeric properties and versatility. PDMS-based biomodels are widely used in blood flow studies, offering a platform for improving flow models and validating numerical simulations. This review highlights recent advances in bioflow studies conducted using both PDMS microfluidic devices and macro...
Numerical model validation of the blood flow through a microchannel hyperbolic ...
Barbosa, Filipe; Dueñas-Pamplona, Jorge; Abreu, Cristiano S.; Oliveira, Mónica S. N.; Lima, Rui Alberto Madeira MacedoA computational fluid dynamics (CFD) model of blood flow through hyperbolic contraction with a discrete phase model (DPM) was experimentally validated. For this purpose, the positions and velocities of red blood cells (RBCs) flowing in a microchannel with hyperbolic contraction were experimentally assessed using image analysis techniques, and were subsequently compared with the numerical results. The numericall...
Experimental characterization of a microfluidic device based on passive crossfl...
Gonçalves, Inês M.; Castro, Inês; Barbosa, Filipe; Faustino, Vera; Catarino, Susana Oliveira; Moita, Ana; Miranda, João M.; Minas, GraçaThe separation of red blood cells (RBCs) from blood plasma and the analysis of individual RBCs are of great importance, as they provide valuable information regarding the health of their donor. Recent developments in microfluidics and microfabrication have contributed to the fabrication of microsystems with complex features to promote the separation and analysis of RBCs. In this work, the separation capacity of...
Meaning of life in nurses caring for patients at the end of life
Gama, Georgeana; Barbosa, Filipe; Vieira, MargaridaNurses caring for patients at the end of life are heavily exposed to death. Finding meaning in their own lives will help them cope, as well as enhance their personal and professional development. Report on a survey of 360 nurses in Portugal.
Overload Professional Grief Scale (SLP): construction and validation
Gama, Georgiana Marques da; Barbosa, Filipe; Vieira, MargaridaThe practice of health professionals in the clinical setting can trigger several overloads that sometimes lead to staff burnout or compassion fatigue. However exposure to death and repeated losses may make a kind of suffering that we have designated overload of professional grief. Objective: Development and validation of a Scale of Overload Professional Grief (SLP) that seeks to assess the intensity of the over...
Escala de Sobrecarga de Luto Profissional (SLP): construção e validação
Gama, Georgiana Marques da; Barbosa, Filipe; Vieira, MargaridaA prática dos profissionais de saúde em contexto clínico pode desencadear sobrecargas diversas que, por vezes, conduzem a quadros de burnout ou fadiga de compaixão. No entanto, a exposição à morte e a perdas repetidas pode condicionar um tipo de sofrimento que designámos de sobrecarga de luto profissional ou luto insulado. Objectivo: Construção e validação da Escala de Sobrecarga Luto Profissional (SLP) que pro...
Alexithymia in chronic urticaria patients
Barbosa, Filipe; Freitas, João; Barbosa, AntónioAlexithymia has been described as an important dimension in several medical and psychiatric diseases. Chronic urticaria (CU) is a chronic condition, in which treatment is difficult. Our aim is to determine the prevalence of alexithymia traits in patients with CU, and to identify the relationships between alexithymia and psychological variables and quality-of-life dimensions. Fifty-five sequential CU patients in...
Attachment style in patients with systemic lupus erythematosus.
Barbosa, Filipe; Ferreira, Carlos; Patrício, Patrícia; Mota, Catarina; Alcântara, Cristina; Barbosa, AntónioThe aim of this study is to characterize patients with SLE in terms of attachment style, personality, psychopathological morbidity and quality of life, comparing them with a healthy volunteer group.We collected 53 patients diagnosed with SLE, in a specialized consultation of autoimmune diseases. The patients were characterized clinically (by means of SLICC/ACR, SLEDAI, length of disease and therapy) and psychol...