Results 111 to 120 of about 1,070,231 (293)

Simulation of intracardiac electrograms around acute ablation lesions

Current Directions in Biomedical Engineering, 2016
Radiofrequency ablation (RFA) is a widely used clinical treatment for many types of cardiac arrhythmias. However, nontransmural lesions and gaps between linear lesions often lead to recurrence of the arrhythmia.
Greiner Joachim, Pollnow Stefan, Schuler Steffen, Lenis Gustavo, Seemann Gunnar, Dössel Olaf   +5 more
doaj   +1 more source

Towards a corpuscular model of optical phenomena [PDF]

, 2011
This thesis presents a collection of event-by-event models that simulate fundamental optical experiments. The simulation approach is completely based on the experimental facts.
Jin, Fengping, Jin, Fengping,
core   +12 more sources

Mechanisms of termination and prevention of atrial fibrillation by drug therapy [PDF]

, 2011
Atrial fibrillation (AF) is a disorder of the rhythm of electrical activation of the cardiac atria. It is the most common cardiac arrhythmia, has multiple aetiologies, and increases the risk of death from stroke.
Smith, G.L., A.J. Workman, Rankin, A.C., A.C. Rankin, Workman, A.J., G.L. Smith   +5 more
core   +1 more source

Brain Network Dynamics of Local and Global Predictive Processing in Aging

Advanced Science, EarlyView.
Separation of concurrent whole‐brain networks in source‐reconstructed magnetoencephalography (MEG) data suggests that healthy aging reorganizes, rather than uniformly attenuates, neural responses elicited from hierarchical auditory violations. Enhanced early sensory deviance processing alongside reduced higher‐order cognitive responses suggests a large‐
Mathias Houe Andersen, Gemma Fernández‐Rubio, David R. Quiroga‐Martinez, Mattia Rosso, Mathias Klarlund, Kit Melissa Larsen, Hartwig Roman Siebner, Morten L. Kringelbach, Peter Vuust, Leonardo Bonetti   +9 more
wiley   +1 more source

Elevated local field potential power characterizes choreic storms identified by deep brain stimulator event capture

Frontiers in Neurology
Some patients with hyperkinetic movement disorders may present with a severe and prolonged state of uncontrolled chorea and/or ballism, termed ‘choreic storm’, causing distress and prompting intervention.
Pritha Bisarad, Pritha Bisarad, Kushala Shivaram, Kushala Shivaram, Elizabeth H. Le, Elizabeth H. Le, Helen Magee, Helen Magee, Sarah Hallgren, Lauren van der Werf, Melissa Duncan, Nicole Lucente, Francisco Ponce, Nicholas Schork, John A. Thompson, Michael C. Kruer, Michael C. Kruer, Michael C. Kruer, Michael C. Kruer, Michael C. Kruer   +19 more
doaj   +1 more source

Benchmarking electrophysiological models of human atrial myocytes

Frontiers in Physiology, 2013
Mathematical modeling of cardiac electrophysiology is an insightful method to investigate the underlying mechanisms responsible for arrhythmias such as atrial fibrillation.
Mathias eWilhelms, Hanne eHettmann, Mary Margot Catherine Maleckar, Mary Margot Catherine Maleckar, Jussi T Koivumäki, Jussi T Koivumäki, Olaf eDössel, Gunnar eSeemann   +7 more
doaj   +1 more source

Continuous Molecular Monitoring Using Electrochemical Aptamer‐Based Sensors: Remaining Challenges for Long‐Term In Vivo Deployment

Advanced Science, EarlyView.
Continuous molecular monitoring using electrochemical aptamer‐based sensors enables real‐time tracking of dynamic biomarkers with transformative potential for precision medicine. Achieving clinically relevant month‐long stability remains a central challenge due to multiple degradation pathways.
Shibo Liu, Xiangling Li, Wei Ouyang
wiley   +1 more source

Analysis of the relationship between rod cell membrane currents and the photoreceptor component of electroretinograms using a cable model

Scientific Reports
This study presents a one-dimensional bidomain cable model for analyzing the relationship between rod membrane currents and rod electroretinogram (ERG) waveform components.
Shaocong Ou, Kouta Hori, Yuttamol Muangkram, Yukiko Himeno, Shuji Tachibanaki, Akira Amano   +5 more
doaj   +1 more source

Rheological phenomena in focus /

, 1993
More than possibly any other scientific discipline, rheology is easily visualized and the relevant literature contains many excellent photographs of unusual and often bizarre phenomena.
Walters, Kenneth., Boger, D. V.
core  

Bogen and Woodward’s data-phenomena distinction, forms of theory-ladenness, and the reliability of data [PDF]

, 2009
Some twenty years ago, Bogen and Woodward challenged one of the fundamental assumptions of the received view, namely the theory-observation dichotomy and argued for the introduction of the further category of scientific phenomena.
Schindler, Samuel
core