Results 81 to 90 of about 13,938 (301)

Synchronization‐Dissipation in the Cardiorespiratory System

Advanced Science, EarlyView.
By modeling central nervous coupling and viscoelastic interactions in the cardiorespiratory system we show that synchronization produces a 10% gain in cardiac efficiency in humans. It is surmised that respiratory sinus arrhythmia improves cardiac pumping efficiency by reducing dynamic stress and power dissipation in the pulmonary vasculature.
Joshua R. Border, Alain Nogaret, Andrew Lefevre, Vishal Jain   +3 more
wiley   +1 more source

Muscle Fatigue During Cardiopulmonary Resuscitation Chest Compressions

, 2020
The performance of Cardio Pulmonary Resuscitation (CPR) chest compressions on a patient provide critical blood flow and oxygen delivery to the heart and brain.
Necco, Katelyn
core  

Multidimensional and Multifunctional Laser‐Induced Graphene (LIG) for Point‐of‐Care and Wearable Biosensing, Theranostics, and Bioactive Interfaces Toward Personalized Healthcare and Regenerative Medicine

Advanced Science, EarlyView.
Multidimensional laser‐induced graphene (LIG) spanning from 0D to 3D architectures is comprehensively reviewed for multifunctional biomedical platforms, including biosensing, theranostics, and bioactive interface applications, which highlights its potentials for point‐of‐care diagnostics, wearable health monitoring, smart drug delivery, and tissue ...
Li Zhang, Yurou Yuan, Xiaohong Ding, Wing Cheung Mak   +3 more
wiley   +1 more source

A Crack‐Based One‐Dimensional Microspheres Array Enables Thermal–Mechanical Decoupled Dual‐Functional Sensing

Advanced Science, EarlyView.
Inspired by Nostoc, a crack‐based one‐dimensional microspheres array (COMA) sensor is developed, which stabilizes crack geometry under isotropic expansion, enabling a predictable, monotonic thermal response from which true strain can be accurately extracted. The COMA sensor exhibits high sensitivity at ultralow deformation (gauge factor up to 89) and a
Wanqing Xu, Hongyi Tu, Zehao Wang, Tianyu Zhu, Chao Wang, Min Chen, Lan Shi, Limin Wu   +7 more
wiley   +1 more source

Hands-on or Hands-off: Manual versus Mechanical Chest Compressions

, 2021
Chest compressions are initiated when electrical malfunctions cause the heart to stop. Two methods of restoring circulation may be used when someone’s heart stops: manual chest compressions (Man-CPR) or mechanical chest compressions (Mech-CPR); however ...
York, Caylin, Aune, Angela, Stodolski, Anastasia   +2 more
core  

Brown Adipocyte Sheets Alleviate Myocardial Ischemia–Reperfusion Injury Through NRG4–ErbB4–Dependent Ferroptosis Inhibition

Advanced Science, EarlyView.
Brown adipocyte sheets are engineered to protect the heart against myocardial ischemia–reperfusion injury by restraining ferroptosis. Upon transplantation onto the cardiac surface, they improve cardiac function, limit infarction and fibrosis, and enhance angiogenesis.
Lifu Sun, Yuting Liu, Jingbo Zhang, Takuji Kawamura, Junjun Li, Li Liu, Shigeru Miyagawa   +6 more
wiley   +1 more source

The quality of chest compressions during CPR overrides importance of timing of defibrillation

, 2007
Background: We address the quality of chest compressions and the impact on initial defibrillation or initial chest compressions after sudden death. Methods: Ventricular fibrillation was induced by occlusion of the left anterior descending coronary ...
Ristagno G, Russell JK, Wang T, Sun S, Jorgenson D, Weil MH, Huang L, Tang W, Chang YT   +8 more
core   +1 more source

The E3 Ligase RNF115 Aggravates Pathological Cardiac Hypertrophy via Ubiquitin‐Mediated Degradation of SPTBN1

Advanced Science, EarlyView.
In response to hypertrophic stimuli, increased c‑JUN phosphorylation upregulates RNF115, leading to SPTBN1 ubiquitination and degradation. which promotes F‑actin depolymerization and YAP activation, driving cardiac hypertrophy. The RNF115 inhibitor DTD effectively suppresses SPTBN1 ubiquitination and cardiac hypertrophy.
Yan Zu, Shiqing Chen, Ji Chen, Liuliu Ruan, Bowen Li, Weijian Chu, Shichen Huang, Dian Yu, Jing Tian, Yuhan Zhao, Yi Han, Xin Tang, Yong Ji   +12 more
wiley   +1 more source

A Chest Compression Quality Evaluation Using Mechanical Chest Compressions under Different Working Situations in the Ambulance

, 2015
Objectives: The aim of this study was to analyze the quality of chest compressions in different working situations pertaining to ambulance crews using either standard chest compressions (S-CC) or LUCAS mechanical chest compressions (L-CC) in a manikin ...
Madsen Härdig, Bjarne, Åström Victorén, Annika, Axelsson, Christer,, Lindblad, Pär   +3 more
core   +1 more source

Continuous Chest Compressions During Sustained Inflations in a Perinatal Asphyxial Cardiac Arrest Lamb Model [PDF]

, 2017
ObjectiveContinuous chest compressions are more effective during resuscitation in adults. Sustained inflation rapidly establishes functional residual capacity in fluid-filled lungs at birth.
Sara Berkelhamer, Mathew, Bobby, Payam Vali, Bobby Mathew, Jayasree Nair, Praveen Chandrasekharan, Koenigsknecht, Carmon, Chandrasekharan, Praveen, Berkelhamer, Sara, Munmun Rawat, Sylvia Gugino, Gugino, Sylvia, Lakshminrusimha, Satyan, Justin Helman, Helman, Justin, Satyan Lakshminrusimha, Nair, Jayasree, Vali, Payam, Rawat, Munmun, Carmon Koenigsknecht   +19 more
core   +1 more source