Results 91 to 100 of about 2,697,360 (401)

Ice Lithography: Recent Progress Opens a New Frontier of Opportunities

open access: yesAdvanced Functional Materials, EarlyView.
This review focuses on recent advancements in ice lithography, including breakthroughs in compatible precursors and substrates, processes and applications, hardware, and digital methods. Moreover, it offers a roadmap to uncover innovation opportunities for ice lithography in fields such as biological, nanoengineering and microsystems, biophysics and ...
Bingdong Chang   +9 more
wiley   +1 more source

Artificial Heart Valves [PDF]

open access: yesJAMA, 2021
William C, Frankel, Tom C, Nguyen
openaire   +2 more sources

TRANSCATHETER VALVE IN VALVE IMPLANTATION FOR FAILED BIOPROSTHETIC HEART VALVES [PDF]

open access: yesJournal of the American College of Cardiology, 2010
Background— The majority of prosthetic heart valves currently implanted are tissue valves that can be expected to degenerate with time and eventually fail. Repeat cardiac surgery to replace these valves is associated with significant morbidity and mortality.
Wood, David Alexander   +19 more
openaire   +2 more sources

Unprecedented Spin‐Lifetime of Itinerant Electrons in Natural Graphite Crystals

open access: yesAdvanced Functional Materials, EarlyView.
Graphite exhibits extraordinary spintronic potential, with electron spin lifetimes reaching 1,000 ns at room temperature ‐ over 100 times longer than graphene‐based devices. Magnetic resonance spectroscopy reveals strong anisotropy: out‐of‐plane spins live 50 times longer than their in‐plane counterparts.
Bence G. Márkus   +5 more
wiley   +1 more source

Análise do estudo anatomopatológico de pacientes submetidos a cirurgia valvar no InCór - HC FMUSP Anatomopathological study of patients submitted to valvar surgery at InCór-HC FMUSP

open access: yesBrazilian Journal of Cardiovascular Surgery, 1992
Das 44 necropsias realizadas em pacientes submetidos a cirurgia valvar no ano de 1990 no InCór, foram encontradas como causas clínicas de óbito nos pacientes mitrais: coagulopatia e sangramento em 11 casos; baixo débito em 7; choque cardiogênico em 5 ...
Hélio A Fabri   +8 more
doaj  

Mechanistic Insights into Bioprosthetic Heart Valve Calcification and Anti-Calcification Strategies

open access: yesReviews in Cardiovascular Medicine
Prosthetic heart valves are crucial for treating valvular heart disease and serve as substitutes for native valves. Bioprosthetic heart valves (BHVs) are currently the most common type used in clinical practice.
Yuxiao Yang, Limin Lan, Yi Lin
doaj   +1 more source

Sir Dominic Corrigan: Healer of Hearts [PDF]

open access: yes, 1961
We present another vignette in our series of Catholic Men of Medicine. Sir Dominic Corrigan made definite contribution in his studies of the actions of the heart and his story should be of interest to our ...
Podolsky, Edward
core   +1 more source

Transcatheter heart valve selection and permanent pacemaker implantation in patients with pre-existent right bundle branch block [PDF]

open access: yes, 2017
Background-Right bundle branch block is an established predictor for new conduction disturbances and need for a permanent pacemaker (PPM) after transcatheter aortic valve replacement.
Abawi, M. (Masieh)   +10 more
core   +4 more sources

Precursor Mineral Phases of Forming Mollusk Shell Nacre: A Study of Hydrated Samples

open access: yesAdvanced Functional Materials, EarlyView.
Mineral, organic phase, and water are the essential components in mollusk shell nacre formation. Their interplay is not well understood, because the hydrated material is difficult to observe at high resolution, under close to native conditions. Forming nacre is studied using environmental and cryo‐electron microscopy and hydrated ACC phases, together ...
Anna Kozell   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy