Results 11 to 20 of about 81,723 (270)

Experience in the development of a system for repeated prosthetic heart valves

open access: yesСибирский научный медицинский журнал, 2023
The failure of heart valve bioprostheses, requiring repeated intervention to replace them, is a serious drawback that narrows the scope of such devices.
E. A. Ovcharenko   +12 more
doaj   +1 more source

Study of Elevation Forces and Resilience of the Schneiderian Membrane Using a New Balloon Device in Maxillary Sinus Elevations on Pig Head Cadavers

open access: yesApplied Sciences, 2022
Background: Although elevation of the sinus can be considered a predictable procedure, it is nonetheless not free of complications, for which reason there is a constant search for new tools and techniques that may reduce these complications.
Erick Rafael Fernández Castellano   +2 more
doaj   +1 more source

Comparative Analysis of Resident Space Object (RSO) Detection Methods

open access: yesSensors, 2023
In recent years, there has been a significant increase in satellite launches, resulting in a proliferation of satellites in our near-Earth space environment. This surge has led to a multitude of resident space objects (RSOs).
Vithurshan Suthakar   +3 more
doaj   +1 more source

The Sunrise Mission [PDF]

open access: yes, 2010
The first science flight of the balloon-borne \Sunrise telescope took place in June 2009 from ESRANGE (near Kiruna/Sweden) to Somerset Island in northern Canada.
A. Feller   +62 more
core   +4 more sources

Transcatheter Aortic Valve-in-Valve Implantation Complicated by Aorto-Right Ventricular Fistula

open access: yesJACC: Case Reports, 2020
We describe the case of a degenerative, sutureless bioprosthetic valve (BPV) with deformation and stent infolding in a patient with elevated surgical risk.
Tiffany Patterson, MBBS, PhD   +7 more
doaj   +1 more source

Outcomes of Venus P-valve for dysfunctional right ventricular outflow tracts from Indian Venus P-valve database

open access: yesAnnals of Pediatric Cardiology, 2021
Background : Balloon-expandable pulmonary valves are usually not suitable for dilated native outflow tracts. Methods : Indian Venus P-valve registry was retrospectively analyzed for efficacy, complications, and midterm outcomes.
Kothandam Sivakumar   +8 more
doaj   +1 more source

FIREBALL: Instrument pointing and aspect reconstruction [PDF]

open access: yes, 2010
The Faint Intergalactic Redshifted Emission Balloon (FIREBALL) had its first scientific flight in June 2009. The instrument is a 1 meter class balloon-borne telescope equipped with a vacuum-ultraviolet integral field spectrograph intended to detect ...
Chave, Robert G.   +11 more
core   +1 more source

Estudio y aplicación del sistema balloon frame a la industrialización de la vivienda: el caso de las American System-Built Houses de Frank Lloyd Wright

open access: yesInformes de la Construccion, 2017
Dentro de su extensa producción arquitectónica, Frank Lloyd Wright tuvo ocasión para experimentar con la industrialización de la madera, trabando un material tradicional con el sentido moderno de la arquitectura.
B. Serra Soriano   +2 more
doaj   +1 more source

Balloon Deflation Strategy during Primary Percutaneous Coronary Intervention in Acute ST-Segment Elevation Myocardial Infarction: A Randomized Controlled Clinical Trial and Numerical Simulation-Based Analysis

open access: yesCardiology Research and Practice, 2020
Background. Primary percutaneous coronary intervention (PCI) is the best available reperfusion strategy in patients with acute ST-segment elevation myocardial infarction (STEMI).
Jun Gu   +14 more
doaj   +1 more source

Stationary solution of the ring-spinning balloon in zero air drag using a RBFN based mesh-free method [PDF]

open access: yes, 2010
A technique for numerical analysis of the dynamics of the ring-spinning balloon based on the Radial Basis Function Networks (RBFNs) is presented in this paper.
Fraser, W. Barrie   +2 more
core   +2 more sources

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