Results 71 to 80 of about 1,526,722 (293)
Brazilian Journal of Cardiovascular Surgery, 1988 Os resultados de um estudo anatômico da valva atrioventricular esquerda, realizado em 30 corações aparentemente normais, conservados em formalina, são comparados aos dados da literatura, tendo por objetivo adequar a nomenclatura e os conceitos anatômicos
Antônio B. Prado Fortuna +2 more
doaj
Relationship between Calcium, Phosphorous and Parathoromone with Calcification of Heart Valves In Dialyzed Patients In Qom, 1385-1386 [PDF]
Majallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Qum, 2008 Background and ObjectivesMetastatic calcification is usually found in patients with chronic renal failure and hemodialyzed patients. Heart calcification becomes worse in hemodialyzed patients due to several factors.
S.M. Mousavi Movahed +3 more
doaj
Soft Skins With Reversible Thickness Morphing: Materials, Mechanisms, and Applications
Advanced Materials, EarlyView.Evolution of electronic skin (e‐skin) technologies toward adaptive, multifunctional soft skins. Phase I highlights early rigid and discrete sensory interfaces. Phase II shows the transition toward flexible, stretchable, and large‐area e‐skin. Phase III captures the emergence of computational e‐skin.
Oliver Ozioko +2 more
wiley +1 more source
, 2020 Heart valves (HV) are unique elements of the cardiovascular system with the function to provide unidirectional smooth blood flow through the heart chambers and the vasculature by regularly opening and closing throughout each cardiac cycle.
Burriesci, Gaetano, Rahmani, Benyamin
core +1 more source
Advanced Materials, EarlyView.Rapid thiol‐maleimide addition frequently outpaces mixing, resulting in heterogeneous hydrogels. S‐nitrosothiols act as thiol‐protecting groups, allowing uniform mixing with maleimide‐functionalized polymers before gelation. Sodium thiosulfate or sodium ascorbate then regenerates thiols on demand, triggering controlled thiol‐maleimide crosslinking ...
Julian A. Serna +7 more
wiley +1 more source
Dynamics of Cryoprotectant Permeation in Porcine Heart Valve Leaflets
Cell Transplantation, 2003 Valve replacement is a common cardiovascular procedure for the treatment of a variety of congenital and acquired defects. Many surgical programs rely on cryopreserved heart valves from regional tissue bank programs to meet clinical demands.
Jonathan R. T. Lakey Ph.D. +7 more
doaj +1 more source
Tissue Heart Valve Replacement at BSMMU- Initial Experience with Two Cases
Bangabandhu Sheikh Mujib Medical University Journal, 2010 Research on prosthesis to replace diseased heart valves began almost simultaneously with mechanical valves which are durable but with inherent thromboembolic complication requiring life-long anticoagulant therapy and tissue valves which are more prone to
Rezwanul Hoque +5 more
doaj +1 more source
Fiber‐Format Flexible Linear Electrostatic Motors
Advanced Materials, EarlyView.A flexible coaxial fibre‐format electrostatic motor enables backdrivable and reversible linear actuation with high force density and functionality under bending, offering a scalable actuation platform for soft and wearable robotics. ABSTRACT Linear motion is fundamental to robotics, yet existing solutions are either rigid electromagnetic motors or ...
Sylvain Schaller, Herbert Shea
wiley +1 more source
Recurrent infective endocarditis causing heart valve failure: A case report
Human Pathology: Case Reports, 2017 Infective endocarditis (IE) is an infection that does not usually respond rapidly to treatment, often because its early symptoms are non-specific. The diseased valves (native or bioprosthetic) may be calcified and the thrombotic vegetations on them ...
Victoria McIntyre, BASc Chemical Engineering (2018 candidate) +3 more
doaj +1 more source
Advanced Materials Technologies, EarlyView.A constraint‐based analytical framework maps the coupled effects of material properties, structural parameters, and operating conditions in tubular dielectric elastomer pumps for extracorporeal circulatory applications. The approach defines performance boundaries through mechanical, electrical, and hydraulic constraints and identifies feasible design ...
Yan Zhang +3 more
wiley +1 more source