Results 91 to 100 of about 2,991,997 (281)

Life‐Like Ferrous Oxide Microspheres from Kombucha

Advanced Materials Interfaces, EarlyView.
Kombucha bacterial cellulose, sodium alginate, and ferrous nitrate self‐assemble into membrane‐enclosed iron oxide microspheres. These microspheres bud daughter vesicles, sustain 24‐h electrochemical oscillations, and filter theta‐band signals.
Panagiotis Mougkogiannis, Anna Nikolaidou, Andrew Adamatzky   +2 more
wiley   +1 more source

The current management of penetrating cardiac trauma [PDF]

, 2012
Includes bibliographical references.The vast majority of patients with penetrating cardiac injuries do not reach the hospital alive as the pre-hospital mortality rate for these injuries is in the region of 86%.
Nicol, Andrew John
core   +1 more source

On the Einthoven Triangle: A Critical Analysis of the Single Rotating Dipole Hypothesis

Sensors, 2018
Since its inception, electrocardiography has been based on the simplifying hypothesis that cardinal limb leads form an equilateral triangle of which, at the center/centroid, the electrical equivalent of the cardiac activity rotates during the cardiac ...
Gaetano D. Gargiulo, Paolo Bifulco, Mario Cesarelli, Alistair L. McEwan, Hossein Moeinzadeh, Aiden O’Loughlin, Ibrahim M. Shugman, Jonathan C. Tapson, Aravinda Thiagalingam   +8 more
doaj   +1 more source

The volumes of the left atrial appendage (LAA) and the left atrium change at the cardiac cycle (5% phase-95% phase).

, 2015
a. The LAA volume changes with the cardiac cycle. b. The LAA volume-phase curve at the cardiac cycle. c. The left atrium volume-phase curve at the cardiac cycle.
Xue-Jing Zhang (778534), Xiao-Wei Liu (778532), Peng Song (281947), Ping-Yong Feng (778537), Bu-Lang Gao (778531), Hai-Qing Yang (778536), Qiong-Ying Fan (778533), Yong Wang (12837), Guo-Chao Liu (778535), Cai-Ying Li (778530)   +9 more
core   +1 more source

Reduced Graphene Oxide Enhances the Vascular Organization and Contractile Performance of Fibrin‐Gelatin‐Based Engineered Cardiac Tissue

Advanced Materials Interfaces, EarlyView.
Fibrin–gelatin hydrogels functionalized with reduced graphene oxide create a mechanically stable and bioactive 3D environment for engineered cardiac tissue. The composite matrix promotes endothelial lumen formation, enhances sarcomeric protein expression, and increases contractile performance of embedded cardiomyocytes.
Christoph Kuckelkorn, Marie Baiker, Yajuan Jiang, Ebru Aksoy, Kurt Pfannkuche, Horst Fischer   +5 more
wiley   +1 more source

Cardiac vagal withdrawal represented by cardiac vagal index (CVI) in non-OCP users (No OCP) and OCP users (OCP) across the menstrual cycle.

, 2015
Cardiac vagal withdrawal represented by cardiac vagal index (CVI) in non-OCP users (No OCP) and OCP users (OCP) across the menstrual cycle.
Lauro C. Vianna (704632), Djalma R. Ricardo (704633), André L. Teixeira (704630), Plinio S. Ramos (704631)   +3 more
core   +1 more source

A Constraint‐Based Analytical Framework for Design‐Space Analysis and Material Screening of Tubular Multilayer Dielectric Elastomer Pumps for Extracorporeal Circulatory Applications

Advanced Materials Technologies, EarlyView.
A constraint‐based analytical framework maps the coupled effects of material properties, structural parameters, and operating conditions in tubular dielectric elastomer pumps for extracorporeal circulatory applications. The approach defines performance boundaries through mechanical, electrical, and hydraulic constraints and identifies feasible design ...
Yan Zhang, Amine Benouhiba, Yoan Civet, Yves Perriard   +3 more
wiley   +1 more source

Non-contact assessment of cardiac physiology using FO-MVSS-based ballistocardiography: a promising approach for heart failure evaluation

Scientific Reports
Continuous monitoring of cardiac motions has been expected to provide essential cardiac physiology information on cardiovascular functioning. A fiber-optic micro-vibration sensing system (FO-MVSS) makes it promising.
Jing Zhan, Xiaoyan Wu, Xuelei Fu, Chenze Li, Ke-Qiong Deng, Qin Wei, Chao Zhang, Tao Zhao, Congcong Li, Longting Huang, Kewei Chen, Qiongxin Wang, Zhengying Li, Zhibing Lu   +13 more
doaj   +1 more source

Recent Advances in Transparent Microelectrode Device Architecture and Fabrication Strategies for Biomedical Applications

Advanced Materials Technologies, EarlyView.
Transparent microelectrode arrays enable simultaneous optical and electrical electrophysiology with high spatiotemporal resolution, allowing multimodal observations of dynamic biological systems. Advances in materials and device architectures improve device performance by addressing key trade‐offs between optical transparency, impedance, and ...
Michael Abraham Listyawan, Tran Bach Dang, Chi Cong Nguyen, Yee Lap Pong, Tianruo Guo, Thanh Nho Do, Hoang‐Phuong Phan   +6 more
wiley   +1 more source

Cardiac Cycle-Related Volume Change in Unruptured Cerebral Aneurysms

, 2012
Background and Purpose— The hemodynamic factors of aneurysms were recently evaluated using computational fluid dynamics in a static vessel model in an effort to understand the mechanisms of initiation and rupture of aneurysms ...
Manabu Kinoshita, Hisashi Tanaka, Toshiki Yoshimine, Toshiyuki Fujinaka, Takeo Nishida, Noriyuki Tomiyama, Yoshiyuki Watanabe, Junko Kuroda, Hajime Nakamura   +8 more
core   +1 more source