3130490 documents found, page 313049 of 313049
Clinical efficacy of hyaluronic acid in the regenerative treatment of periodont...
Delmastro, Vittoria; Martins, Filipe Augusto; Martins, Tiago JoséIntroduction: The regeneration of periodontal intrabony defects represents a relevant clinical challenge due to their anatomical complexity and the unpredictability of regenerative outcomes. Hyaluronic acid, a key component of the extracellular matrix, has been proposed as an adjunctive agent in periodontal regenerative therapies. Objectives: To critically analyze the available scientific evidence on the clinic...
Tunneling techniques in surgical treatment of gingival recessions: integrative ...
Lumbroso, Zachary; Martins, Tiago José; Martins, Filipe AugustoIntroduction: Gingival recession is a common condition in periodontal practice, often associated with functional and aesthetic concerns. Among surgical root coverage approaches, tunneling techniques have gained increasing attention due to their minimally invasive nature, ability to preserve vascularization, and favorable aesthetic outcomes. However, current evidence regarding their clinical effectiveness and lo...
On the meaning of ἀπατηλός in Parmenides
Cordero, NéstorThe article proposes an interpretation of Parmenides’ poem as a methodical path of persuasion. According to this proposal, the poem is divided into two distinct domains: the convincing discourse and the opinions of mortals, which are not simply false but rather “deceptive.” It rejects the possibility of a specifically “Parmenidean doxa,” as is still commonly assumed, to establish that these opinions belong to t...
Lithium-Ion Battery Recycling by Physical Processing: Evaluation of Recovery an...
Nogueira, Carlos; Margarido, Fernanda; Neiva Correia, Maria Joana; Pedrosa, Fátima; Plancha, Maria João; Gonçalves, AnaABSTRACT: Recycling of spent Li-ion batteries is essential for the sustainable management of critical raw materials for battery production. The pre-metallurgical steps, involving shredding and physical processing, are important operations for separation and concentration of the electrode powders constituting the black mass. This paper presents a laboratorial study of the shredding of pouch-type LIB cells to ass...
Protic Imidazolium Ionic Liquids for Electroreduction of CO2
Messias, Sofia; Paninho, A. B.; Pires, Carolina; Rangel, Carmen M.; Martins, Rodrigo; Mendes, Manuel Joao; Branco, Luis; Machado, AnaABSTRACT: Protic ionic liquids characterized by permutable protons have important applications in electrochemistry. This work represents an unprecedented report of the use of such electrolytes for CO2 electroreduction (ECR) into CO at 10 bar and near room temperature (45 degrees C) on zinc electrodes. It was observed that when protic ILs are synthesized from strong acids, the competition with the hydrogen evolu...
SPEEK-based membranes for enhanced ion transport and chemical stability [Resumo]
Teixeira, Fatima; Teixeira, António Paulo Silva; Rangel, Carmen M.ABSTRACT: Membranes are a key component of electrochemical devices such as fuel cells and electrolyzers. Nafion® membranes, considered the industry-standard benchmark, exhibits several performance limitations which has fostered research for better membranes.1-3 Alternative membrane improvements are driven by the need to lower production costs and improve ion transport, chemical and thermal durability along with...
Lithium Role in the Clean Energy Transition: Challenges and Prospects
Almeida, Joana; Pedrosa, Fátima; Plancha, Maria João; Gonçalves, Ana; Nogueira, CarlosABSTRACT: Global decarbonization strategies depend on the large-scale electrification of the transport sector, mainly supported by lithium-ion battery technologies. Lithium’s role in assisting low-carbon mobility has driven a fast rise in demand. This has intensified concerns regarding resource scarcity and supply chain vulnerabilities, particularly in the European Union, which remains heavily dependent on impo...
Inside the Investment Decision: Framing, Motivation, and Post-Decision Emotion ...
Finet, Alain; Kristoforidis, Kevin; Laznicka, JulieOur study examines how emotions influence individual investors’ decision-making in stock markets, an area in which traditional quantitative approaches often fail to capture the complexity of the underlying mechanisms. To address this limitation, we adopt a qualitative, inductive approach that remains relatively uncommon in finance, combining a trading simulation with semi-structured interviews. Eight management...
Virtualization of Focus Groups and Interviews: Reflections in Psychosocial Rese...
Martínez-Labrín, Soledad; Martínez-Labrín, Soledad; Bivort, Bruno; Sandoval-Díaz, JoséThis article provides a comparative analysis of the methodological conditions associated with the in-person and virtual implementation of interviews and focus groups in qualitative psychosocial research. The analysis draws on specialized methodological literature and reflective materials produced by the research team during the virtual implementation of both techniques in a project conducted during the COVID-19...
Effectiveness of Home Respiratory Rehabilitation in Long COVID – A Case Study
Sousa, João; Sousa, João; Ribeiro, Andrea; Lumini, JoséIntroduction: In most of the severe cases of COVID-19, important symptoms and comorbidities were identified up to 6 months after hospital discharge. These are designated as Long COVID. In order to reduce symptoms, improve aerobic and functional capacity and the quality of life of these users, respiratory rehabilitation is suggested. However, due to the saturation of existing services and/or long waiting lists, ...