Results 51 to 60 of about 156,815 (290)

Protection of Heart Under Hypothermia with Acetylcholine Arrest.

Experimental Biology and Medicine, 1956
Conclusions1. Total circulatory occlusion alone does not slow the rate of the normother-mic or hypothermic heart. 2. Intracoronary acetylcholine will profoundly decrease the cardiac rate in the occluded heart. The duration of this effect is short at normal body temperatures but quite prolonged during hypothermia (24–27°C). 3.
Richard G. Thompson, Peter V. Moulder
openaire   +3 more sources

Comparative Wear and Friction Analysis of Sliding Surface Materials for Hydrostatic Bearing under Oil Supply Failure Conditions

Advanced Engineering Materials, EarlyView.
Hydrostatic bearings excel in high‐precision applications, but their performance hinges on a continuous external supply. This study evaluates various material combinations for sliding surfaces to mitigate damage during supply failures or misalignment and to discover the most effective materials identified for enhancing the reliability and efficiency of
Michal Michalec, Lukáš Daněk, Jan Foltýn, Petr Svoboda, Carsten Gachot, Martin Hartl, Ivan Křupka   +6 more
wiley   +1 more source

Tribology of ZrC Coatings and Spherical Tips Acquired with Extraordinarily Stiff, Metal Atomic Force Microscopy Probes

Advanced Engineering Materials, EarlyView.
In this research, ZrC coatings are evaluated against various counterprobes at the microscale using novel super‐stiff atomic force microscopy cantilevers. The chemical composition of the coating is shown to be an important factor influencing coating hardness and Young's modulus, while surface roughness, counterprobe hardness, and surface energy are the ...
Piotr Jenczyk, Marcin Michałowski, Bogdan Warcholiński, Michał Milczarek, Adam Gilewicz   +4 more
wiley   +1 more source

The Heart Team approach to cardiac arrest

European Heart Journal Supplements
Abstract Cardiac arrest is a critical emergency in cardiovascular medicine, requiring rapid, multidisciplinary interventions to enhance patient survival and neurological outcomes. This review explores the unique challenges of managing out-of-hospital (OHCA) and in-hospital cardiac arrest (IHCA), with a focus on mechanical circulatory ...
Tharusan Thevathasan, Janine Pöss, Andrea Montisci, Bastian Schmack, Kaveh Eghbalzadeh, Sascha Ott, Guido Tavazzi, Benedikt Schrage, Nicoletta D’Ettore, Federico Pappalardo   +9 more
openaire   +2 more sources

Finite Element Modeling of Residual Stress Formation during Nanosecond Laser Ablation of Stainless Steel

Advanced Engineering Materials, EarlyView.
This article investigates residual stress formation during single‐spot nanosecond laser ablation of stainless steel. Experimental validation and a parametric study using finite element simulations are employed to analyze thermal effects, ablation dynamics, and stress evolution.
Yutaka Tsumura, Anna Paradowska, Andrei V. Rode, Steve Madden, Ludovic Rapp, Meera Mohan, Alison Wain, Gwénaëlle Proust   +7 more
wiley   +1 more source

Oxygen Consumption of the Hypothermic Potassium Arrested Heart.

Experimental Biology and Medicine, 1958
SummaryOxygen consumption of the potassium arrested heart averaged 2.1 ml/min/100 g of perfused heart at normal body temperature, and 0.66 ml/min/100 g of perfused heart at 21.5 to 25°C.
Frederick S. Cross, Richard D. Jones, Robert M. Berne   +2 more
openaire   +3 more sources

Electronic Control System for Optimized Resonance Operation of Dielectric Elastomer Pumps through Self‐Sensing

Advanced Engineering Materials, EarlyView.
A powerful electronic control system enables a dielectric elastomer pump to operate at resonance, matching conventional pump performance. Using self‐sensing to reconstruct load pressure dynamically, the adaptive control adjusts resonance frequency accordingly.
Matthias Baltes, Benedikt Holz, Daniel Bruch, Paul Motzki   +3 more
wiley   +1 more source

Focused Cardiac Ultrasound Diagnosis of Cor Triatriatum Sinistrum in Pediatric Cardiac Arrest

Western Journal of Emergency Medicine, 2015
Cardiac arrest in the adolescent population secondary to congenital heart disease (CHD) is rare. Focused cardiac ultrasound (FoCUS) in the emergency department (ED) can yield important clinical information, aid in resuscitative efforts during cardiac ...
Thompson Kehrl,, Callie T. Dagen, Brent A. Becker   +2 more
doaj   +1 more source

Thermally Induced Gelling Systems Based on Patchy Polymeric Micelles

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
A novel strategy to design thermally induced gelling systems with tunable material properties is reported. Polymeric mixed‐shell micelles displaying multiple thermosensitive patchy domains formed hydrogels by assembling into well‐entangled worm‐like network structures upon heating to body temperature. The patchy micelle design significantly affects the
Binru Han, Shota Fujii, André J. van der Vlies, Masoud Ghasemi, Joshua T. Del Mundo, Sarah N. Kiemle, Esther W. Gomez, Enrique D. Gomez, Ralph H. Colby, Urara Hasegawa   +9 more
wiley   +1 more source

Engineering the Hierarchical Porosity of Granular Hydrogel Scaffolds Using Porous Microgels to Improve Cell Recruitment and Tissue Integration

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
By fabricating and covalently assembling gelatin methacryloyl (GelMA) porous microgels, a new class of granular hydrogel scaffolds with hierarchical porosity is developed. These scaffolds have a significantly higher void fraction than their counterparts made up of nonporous microgels, enhancing cell recruitment and tissue integration. This research may
Alexander Kedzierski, Sina Kheirabadi, Arian Jaberi, Zaman Ataie, Catherine L. Mojazza, Marisa L. Williamson, Anton M. Hjaltason, Aneesh Risbud, Yuanhui Xiang, Amir Sheikhi   +9 more
wiley   +1 more source