Results 51 to 60 of about 76,130 (310)

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

open access: yesFEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas   +6 more
wiley   +1 more source

Percutaneous pulmonary valve implantation in humans - Results in 59 consecutive patients [PDF]

open access: yes, 2005
Background - Right ventricular outflow tract (RVOT) reconstruction with valved conduits in infancy and childhood leads to reintervention for pulmonary regurgitation and stenosis in later life.Methods and Results - Patients with pulmonary regurgitation ...
Coats, L   +12 more
core  

Treatment of More Than Moderate Ischemic Mitral Regurgitation in Patients Undergoing Left Ventricular Reconstruction

open access: yesCardiology Discovery, 2023
Objective:. While evidence-based clinical guidelines recommend chordal-sparing mitral valve replacement, rather than mitral valve repair, in patients with severe ischemic mitral regurgitation (IMR) undergoing coronary artery bypass grafting, there are no
Xieraili Tiemuerniyazi   +4 more
doaj   +1 more source

Strategies for tricuspid valve repair [PDF]

open access: yesIndian Journal of Thoracic and Cardiovascular Surgery, 2019
Tricuspid valve repair is in many ways more challenging than mitral valve repair, especially since tricuspid valve anatomy is more complex with three leaflets, a saddle-shaped dynamic annulus and a complex subvalvular apparatus. The late referral of patients for tricuspid valve surgery adds to this challenge and contributes to poor prognosis ...
Nishant, Saran, Joseph A, Dearani
openaire   +2 more sources

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

AVIATOR: An open international registry to evaluate medical and surgical outcomes of aortic valve insufficiency and ascending aorta aneurysm [PDF]

open access: yes, 2019
: Objectives: Current national registries are lacking detailed pathology-driven analysis and long-term patients outcomes. The Heart Valve Society (HVS) aortic valve (AV) repair research network started the Aortic Valve Insufficiency and ascending aorta ...
Soliman, Said   +128 more
core  

Valve repair versus valve replacement for degenerative mitral valve disease [PDF]

open access: yes, 2008
ObjectiveThe study objective was to identify characteristics differentiating patients undergoing valve replacement versus valve repair for degenerative mitral valve disease and to use this information to compare survival and reoperation after each ...
Slisatkorn, Worawong   +10 more
core   +1 more source

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

open access: yesAdvanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees   +6 more
wiley   +1 more source

Rheumatic tricuspid valve disease: Repair versus Replacement

open access: yesSVU - International Journal of Medical Sciences, 2022
Background: Tricuspid valve disease is most commonly functional, however, organic affection still accounts for one fourth of cases. Rheumatic fever which is endemic in Egypt is a main cause of organic affection.
Ahmed M. Elwakeel*   +15 more
doaj   +1 more source

Versatile Pneumatic Twisted Coiled Actuators Enabled by Fiber‐Polymer Composite Fabrication

open access: yesAdvanced Functional Materials, EarlyView.
This work reports composite Pneumatic Twisted Coiled Actuators with embedded Kevlar fibers that convert pneumatic or hydraulic pressure into powerful linear motion. A novel precise manufacturing technique is used to systematically explore how design variables influence actuator mechanics and dynamics.
William J. Townsend   +5 more
wiley   +1 more source

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