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Three Floating Thrombi in the Aortic Arch.
Eur J Vasc Endovasc Surg
December 2024
Department of Radiology, University Hospitals Leuven, Leuven, Belgium.
Arrhythmia Detection in Atrioventricular, Single-Lead, Floating Atrial Dipole ICD Systems Compared with Conventional Single- and Dual-Chamber Defibrillators.
J Cardiovasc Dev Dis
December 2024
Cardiac Electrophysiology Division, Cardiology Center, Department of Internal Medicine, University of Szeged, 6725 Szeged, Hungary.
Background: An atrioventricular defibrillator system with a floating atrial dipole (VDD ICD) can provide atrial sensing by a single lead. Our aim was to compare the arrhythmia detection efficacy of VDD ICDs with conventional single- (VVI) and dual-chamber (DDD) defibrillators.
Methods: Data from consecutive patients undergoing ICD implantation were retrospectively analyzed.
From an Enteroatmospheric to an Enterocutaneous Fistula Using a Condom.
Cureus
November 2024
General Surgery, Centro Hospitalar Barreiro Montijo, Barreiro, PRT.
An enteroatmospheric fistula (EAF) is one of the most feared complications of damage control laparotomy. Its management is highly challenging, often requiring multiple surgeries and prolonged hospitalization. It is a serious condition, and despite significant improvements in mortality rates due to advancements in intensive care, the rate remains substantial.
View Article and Find Full Text PDFOvercoming Gas Mass Transfer Limitations Using Gas-Conducting Electrodes for Efficient Nitrogen Reduction.
ACS Nano
December 2024
Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, P. R. China.
Electrocatalytic nitrogen reduction reaction (NRR) is a very attractive strategy for ammonia synthesis due to its energy savings and sustainability. However, the ammonia yield and Faraday efficiency of electrocatalytic nitrogen reduction have been challenges due to low nitrogen solubility and competitive hydrogen evolution reaction (HER) in electrolyte solution. Herein, inspired by the asymmetric wetting behavior, i.
View Article and Find Full Text PDFChemomechanical Self-Oscillatory Microgel Motility in Stratified Chemical Media.
Adv Mater
December 2024
Dynamic Colloidal Systems Laboratory, Department of Chemistry, Indian Institute of Technology, Roorkee, 247667, India.
The design of chemomechanical self-oscillators, which execute oscillations in the presence of constant stimuli lacking periodicity, is a step toward the development of autonomous and interactive soft robotic systems. This work presents a simple design of prolonged chemomechanical oscillatory movement in a microgel system capable of buoyant motility within stratified chemical media containing spatially localized sinking and floating stimuli. Three design elements are developed: a stimuli-responsive membranized calcium alginate microgel, a Percoll density gradient for providing stratified antagonistic chemical media, and transduction of microgel particle size actuation into buoyant motility via membrane-mediated displacement of the Percoll media.
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