Results 151 to 160 of about 2,544,811 (316)

Multi‐Factor Optimization of Nickel Foam Flow Fields: Insights into Structural and Surface Modifications for High‐Performance PEMFCs

open access: yesAdvanced Science, EarlyView.
This article investigates the multi‐factor optimization of nickel foam flow fields in PEMFCs, focusing on compression, porosity, pore size, hydrophobicity, and surface coatings. Through comprehensive experiments and analysis, it reveals how structural and surface modifications influence electrochemical performance, water management, and corrosion ...
Siyuan Wu   +5 more
wiley   +1 more source

Estudo multicêntrico dos resultados das trocas valvares com o uso da bioprótese Biocor no Estado de Minas Gerais Multicentric study of the results with implanted bioprosthesis Biocor in the state of Minas Gerais

open access: yesBrazilian Journal of Cardiovascular Surgery, 1988
No período de março de 1981 a março de 1988, foram implantadas 2324 biopróteses, em 2016 pacientes, em 5 Centros do Estado de Minas Gerais. Este estudo inclui somente a análise dos pacientes submetidos a troca valvar aórtica (n = 603) e mitral ( n = 1110)
Mário Osvaldo Vrandecic   +23 more
doaj  

Decursin‐Loaded Nanovesicles Target Macrophages Driven by the Pathological Process of Atherosclerosis

open access: yesAdvanced Science, EarlyView.
This study presents decursin, a traditional Chinese medicine monomer, that inhibits lipid accumulation and inflammation in atherosclerosis through PKCδ interaction. A novel targeted delivery system (ALD@EM) is developed to overcome decursin's short half‐life, combining antibody‐mediated targeting, LDL‐facilitated chemotaxis, and enhanced macrophage ...
Hui Chen   +13 more
wiley   +1 more source

A insuficiência da valva aórtica na dissecção crônica da aorta proximal: troca ou reconstrução valvar? Aortic valve insufficiency in chronic aortic dissection: valve replacement or reconstruction?

open access: yesBrazilian Journal of Cardiovascular Surgery, 1993
Com o objetivo de avaliar os resultados clínicos e ecocardiográficos tardios obtidos com a correção da insuficiência aórtica decorrente da dissecção crônica da aorta proximal, foram estudados 48 pacientes consecutivos operados entre janeiro de 1980 e ...
Ricardo Beyruti   +5 more
doaj  

Red Blood Cell‐Induced Bacterial Margination Improves Microbial Hemoadsorption on Engineered Cell‐Depleted Thrombi, Restoring Severe Bacteremia in Rats

open access: yesAdvanced Science, EarlyView.
A highly efficient extracorporeal device for treating bacteremia is developed by integrating microfluidic bacterial margination and engineered cell‐depleted thrombi strategically constructed in the device. The rodent models, severely infected with antibiotic‐resistant bacteria, recover from bacteremia after two subsequent extracorporeal blood ...
Bong Hwan Jang   +4 more
wiley   +1 more source

Effect of Parametric Variation of Chordae Tendineae Structure on Simulated Atrioventricular Valve Closure [PDF]

open access: yesarXiv
Many approaches have been used to model chordae tendineae geometries in finite element simulations of atrioventricular heart valves. Unfortunately, current "functional" chordae tendineae geometries lack fidelity that would be helpful when informing clinical decisions.
arxiv  

Estudo multicêntrico da bioprótese porcina Labcor Multicenter study with porcine bioprosthetic Labcor valve

open access: yesBrazilian Journal of Cardiovascular Surgery, 1988
No período de 1984-1988, foram estudados 514 pacientes, 288 do sexo feminino e 226 do sexo masculino, com idade de 36,8 ± 16,5 anos, submetidos a cirurgia cardíaca valvar com implante de bioprótese porcina Labcor.
Fernando A Lucchese   +15 more
doaj  

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