1995 …2021
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Research Output 1995 2019

1995
8 Citations (Scopus)

The distributed feedback of counter-propagating waves in a periodically modulated medium with relaxing cubic nonlinearity

Afanas’ev, A. A., Samson, B. A. & Tolkacheva, E. G., Jan 1 1995, In : Journal of Modern Optics. 42, 11, p. 2285-2294 10 p.

Research output: Contribution to journalArticle

counters
nonlinearity
gratings
coupling coefficients
continuous radiation
1996
1 Citation (Scopus)

Effects of space modulation of laser beams in a nonlinear DFB-structure

Afanas'ev, A. A., Dritz, V. V., Samson, B. A. & Tolkacheva, E. G., Jan 1 1996, Technical Digest - European Quantum Electronics Conference. 1 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

laser beams
modulation
numerical analysis
counters
envelopes
3 Citations (Scopus)

Theory of stationary generation of a laser with a nonlinear bragg reflector

Afanas'ev, A. A. & Tolkacheva, E. G., Oct 1 1996, In : IEEE Journal of Quantum Electronics. 32, 10, p. 1740-1745 6 p.

Research output: Contribution to journalArticle

Bragg reflectors
Lasers
Laser radiation
Laser modes
lasers
1998
1 Citation (Scopus)

Effect of chirped laser pulse narrowing by reflection from a nonlinear DFB structure

Afanas'ev, A. A., Samson, B. A. & Tolkacheva, E. G., Jan 1 1998, In : Journal of Modern Optics. 45, 1, p. 91-101 11 p.

Research output: Contribution to journalArticle

pulses
lasers
forbidden bands
reflected waves
chirp
1 Citation (Scopus)

Spatial modulation of a light beam reflected from a nonlinear DFB-structure

Afanas'ev, A. A., Dritz, V. V. & Tolkacheva, E. G., Mar 15 1998, In : Optics Communications. 148, 4-6, p. 236-241 6 p.

Research output: Contribution to journalArticle

reflected waves
light beams
Modulation
modulation
Radiation
1999
1 Citation (Scopus)

Spatial instability of counterpropagating waves in nonlinear distributed feedback structures

Afanas’ev, A. A., Talkachova, A., Tredicce, J. & Volkov, V. M., Jan 1 1999, In : Physical Review A - Atomic, Molecular, and Optical Physics. 60, 3, p. 2375-2379 5 p.

Research output: Contribution to journalArticle

perturbation
thresholds
2002
27 Citations (Scopus)

Analysis of the Fenton-Karma model through an approximation by a one-dimensional map

Tolkacheva, E. G., Schaeffer, D. G., Gauthier, D. J. & Mitchell, C. C., Dec 2002, In : Chaos. 12, 4, p. 1034-1042 9 p.

Research output: Contribution to journalArticle

One-dimensional Maps
Action Potential
Approximation
approximation
Cardiac
2003
86 Citations (Scopus)

Condition for alternans and stability of the 1: 1 response pattern in a "memory" model of paced cardiac dynamics

Tolkacheva, E. G., Schaeffer, D. G., Gauthier, D. J. & Krassowska, W., Mar 1 2003, In : Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 67, 3, p. 31904 1 p.

Research output: Contribution to journalArticle

Memory Model
Cardiac
Action Potentials
Myocardium
Slope
2004
47 Citations (Scopus)

Condition for alternans and its control in a two-dimensional mapping model of paced cardiac dynamics

Tolkacheva, E. G., Romeo, M. M., Guerraty, M. & Gauthier, D. J., Mar 2004, In : Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 69, 3, p. 31904 1 p., 031904.

Research output: Contribution to journalArticle

Cardiac
Slope
Action Potential
slopes
intervals
9 Citations (Scopus)

Control of cardiac alternans in a mapping model with memory

Tolkacheva, E. G., Romeo, M. M. & Gauthier, D. J., Jul 15 2004, In : Physica D: Nonlinear Phenomena. 194, 3-4, p. 385-391 7 p.

Research output: Contribution to journalArticle

feedback control
physiological responses
myocardium
muscles
maintenance
16 Citations (Scopus)

Rate-dependent propagation of cardiac action potentials in a one-dimensional fiber

Cain, J. W., Tolkacheva, E. G., Schaeffer, D. G. & Gauthier, D. J., Jan 1 2004, In : Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics. 70, 6, 1 p.

Research output: Contribution to journalArticle

Action Potential
Cardiac
Fiber
Propagation
fibers
87 Citations (Scopus)

The restitution portrait: A new method for investigating rate-dependent restitution

Kalb, S. S., Dobrovolny, H. M., Tolkacheva, E. G., Idriss, S. F., Krassowska, W. & Gauthier, D. J., Jun 1 2004, In : Journal of cardiovascular electrophysiology. 15, 6, p. 698-709 12 p.

Research output: Contribution to journalArticle

Action Potentials
pamidronate
Rana catesbeiana
Myocardium
Observation
2005
23 Citations (Scopus)

Restitution in mapping models with an arbitrary amount of memory

Kalb, S. S., Tolkacheva, E. G., Schaeffer, D. G., Gauthier, D. J. & Krassowska, W., Jun 2005, In : Chaos. 15, 2, 023701.

Research output: Contribution to journalArticle

Data storage equipment
Curve
Action Potential
Arbitrary
curves
2006
43 Citations (Scopus)

Action potential duration restitution portraits of mammalian ventricular myocytes: Role of calcium current

Tolkacheva, E. G., Anumonwo, J. M. B. & Jalife, J., Jan 1 2006, In : Biophysical journal. 91, 7, p. 2735-2745 11 p.

Research output: Contribution to journalArticle

Muscle Cells
Action Potentials
Calcium
Cardiac Myocytes
Guinea Pigs
2007
21 Citations (Scopus)

An ionically based mapping model with memory for cardiac restitution

Schaeffer, D. G., Cain, J. W., Gauthier, D. J., Kalb, S. S., Oliver, R. A., Tolkacheva, E. G., Ying, W. & Krassowska, W., Feb 1 2007, In : Bulletin of mathematical biology. 69, 2, p. 459-482 24 p.

Research output: Contribution to journalArticle

Cardiac
Data storage equipment
Action Potentials
Rana catesbeiana
Action Potential
192 Citations (Scopus)

Arrhythmogenic mechanisms in a mouse model of catecholaminergic polymorphic ventricular tachycardia

Cerrone, M., Noujaim, S. F., Tolkacheva, E. G., Talkachou, A., O'Connell, R., Berenfeld, O., Anumonwo, J., Pandit, S. V., Vikstrom, K., Napolitano, C., Priori, S. G. & Jalife, J., Nov 1 2007, In : Circulation research. 101, 10, p. 1039-1048 10 p.

Research output: Contribution to journalArticle

Ryanodine Receptor Calcium Release Channel
Ventricular Tachycardia
Cardiac Arrhythmias
Ventricular Fibrillation
Polymorphic catecholergic ventricular tachycardia
15 Citations (Scopus)

Kir2.3 isoform confers pH sensitivity to heteromeric Kir2.1/Kir2.3 channels in HEK293 cells

Muñoz, V., Vaidyanathan, R., Tolkacheva, E. G., Dhamoon, A. S., Taffet, S. M. & Anumonwo, J. M. B., Apr 1 2007, In : Heart Rhythm. 4, 4, p. 487-496 10 p.

Research output: Contribution to journalArticle

HEK293 Cells
Protein Isoforms
Sheep
Kir2.1 channel
Cardiac Myocytes
7 Citations (Scopus)

The rate- and species-dependence of short-term memory in cardiac myocytes

Tolkacheva, E. G., Feb 1 2007, In : Journal of Biological Physics. 33, 1, p. 35-47 13 p.

Research output: Contribution to journalArticle

muscle cells
Short-Term Memory
Cardiac Myocytes
cycles
Action Potentials
2008
91 Citations (Scopus)

Role of conduction velocity restitution and short-term memory in the development of action potential duration alternans in isolated rabbit hearts

Mironov, S., Jalife, J. & Tolkacheva, E. G., Jul 1 2008, In : Circulation. 118, 1, p. 17-25 9 p.

Research output: Contribution to journalArticle

Short-Term Memory
Action Potentials
Rabbits
Epicardial Mapping
Cardiac Arrhythmias
2009
13 Citations (Scopus)

Optical mapping of electrical heterogeneities in the heart during global ischemia

Matiukas, A., Pertsov, A. M., Kothari, P., Cram, A. & Tolkacheva, E. G., 2009, Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009: Engineering the Future of Biomedicine, EMBC 2009. IEEE Computer Society, p. 6321-6324 4 p. 5333176. (Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ischemia
Reperfusion
Heart Ventricles
Ventricular Fibrillation
Action Potentials
2010
21 Citations (Scopus)

Mechanisms underlying the antifibrillatory action of hyperkalemia in guinea pig hearts

Pandit, S. V., Warren, M., Mironov, S., Talkachova, A., Kalifa, J., Berenfeld, O. & Jalife, J., May 19 2010, In : Biophysical Journal. 98, 10, p. 2091-2101 11 p.

Research output: Contribution to journalArticle

Hyperkalemia
Ventricular Fibrillation
Guinea Pigs
Heart Ventricles
Constriction
2011

Local onset of voltage and calcium alternans in the heart

McIntyre, S. D., Mori, Y. & Tolkacheva, E. G., Dec 1 2011, ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control, DSCC 2011. p. 607-610 4 p. (ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control, DSCC 2011; vol. 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Calcium
Depolarization
Electric potential
Tissue
13 Citations (Scopus)
Ganglionectomy
Sympathectomy
Ventricular Fibrillation
Action Potentials
Atenolol
12 Citations (Scopus)

Toward prediction of the local onset of alternans in the heart

Cram, A. R., Rao, H. M. & Talkachova, A., Feb 16 2011, In : Biophysical journal. 100, 4, p. 868-874 7 p.

Research output: Contribution to journalArticle

Action Potentials
Ventricular Fibrillation
Muscle Cells
Rabbits
Isolated Heart Preparation
2012
14 Citations (Scopus)
Carbonyl Cyanide p-Trifluoromethoxyphenylhydrazone
Ventricular Fibrillation
Mitochondria
Ischemia
Heart Ventricles
10 Citations (Scopus)

Nonlinear dynamics of periodically paced cardiac tissue

Tolkacheva, E. G. & Zhao, X., May 1 2012, In : Nonlinear Dynamics. 68, 3, p. 347-363 17 p.

Research output: Contribution to journalReview article

Cardiac
Nonlinear Dynamics
Tissue
Calcium
Bifurcation
1 Citation (Scopus)

The effect of feedback on alternans formation in the heart

McIntyre, S. D., Mori, Y. & Talkachova, A., Dec 1 2012, ASME 2012 5th Annual Dynamic Systems and Control Conference Joint with the JSME 2012 11th Motion and Vibration Conference, DSCC 2012-MOVIC 2012. p. 585-589 5 p. (ASME 2012 5th Annual Dynamic Systems and Control Conference Joint with the JSME 2012 11th Motion and Vibration Conference, DSCC 2012-MOVIC 2012; vol. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Feedback
4 Citations (Scopus)

Visualizing the complex 3D geometry of the perfusion border zone in isolated rabbit heart

Smith, R. M., Black, A. J., Velamakanni, S. S., Akkin, T. & Tolkacheva, E. G., May 10 2012, In : Applied Optics. 51, 14, p. 2713-2721 9 p.

Research output: Contribution to journalArticle

rabbits
borders
arrhythmia
Tissue
Geometry
2013
1 Citation (Scopus)
Vagus Nerve Stimulation
Rats
Heart Failure
Heart Rate
12 Citations (Scopus)

Spatiotemporal evolution and prediction of [Ca2+]i and APD alternans in isolated rabbit hearts

Visweswaran, R., McIntyre, S. D., Ramkrishnan, K., Zhao, X. & Tolkacheva, E. G., Nov 1 2013, In : Journal of cardiovascular electrophysiology. 24, 11, p. 1287-1295 9 p.

Research output: Contribution to journalArticle

Action Potentials
Rabbits
Calcium
Ventricular Fibrillation
12 Citations (Scopus)

Uncoupling the mitochondria facilitates alternans formation in the isolated rabbit heart

Smith, R. M., Visweswaran, R., Talkachova, I., Wothe, J. K. & Tolkacheva, E. G., Jul 1 2013, In : American Journal of Physiology - Heart and Circulatory Physiology. 305, 1, p. H9-H18

Research output: Contribution to journalArticle

Action Potentials
Carbonyl Cyanide p-Trifluoromethoxyphenylhydrazone
Mitochondria
Rabbits
Ischemia
1 Citation (Scopus)
Eigenvalue Analysis
eigenvalues
Predict
Action Potential
Cycle Length
2014
17 Citations (Scopus)

Heart rate variability and alternans formation in the heart: The role of feedback in cardiac dynamics

McIntyre, S. D., Kakade, V., Mori, Y. & Talkachova, A., Jun 7 2014, In : Journal of Theoretical Biology. 350, p. 90-97 8 p.

Research output: Contribution to journalArticle

Heart Rate Variability
Cardiac
Action Potential
heart rate
action potentials
6 Citations (Scopus)

Intermittent vagal nerve stimulation alters the electrophysiological properties of atrium in the myocardial infarction rat model

Xie, X., Lee, S. W., Johnson, C., Ippolito, J., Kenknight, B. H. & Tolkacheva, E. G., Nov 2 2014, 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014. Institute of Electrical and Electronics Engineers Inc., Vol. 2014. p. 1575-1578 4 p. 6943904. (2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

pamidronate
Vagus Nerve Stimulation
Rats
Myocardial Infarction
Electrocardiography

Miniaturized radio frequency telemetric pacemaker with anti-arrhythmic pacing protocol

Kulkarni, K., Tan, S. Y. & Tolkacheva, E. G., Jan 1 2014, In : Journal of Medical Devices, Transactions of the ASME. 8, 2, 020909.

Research output: Contribution to journalArticle

Pacemakers
Anti-Arrhythmia Agents
Radio
2015
4 Citations (Scopus)

Characterizing Spatial Dynamics of Bifurcation to Alternans in Isolated Whole Rabbit Hearts Based on Alternate Pacing

Kulkarni, K., Visweswaran, R., Zhao, X. & Tolkacheva, E. G., Jan 1 2015, In : BioMed Research International. 2015, 170768.

Research output: Contribution to journalArticle

Rabbits
Heart Ventricles
Sudden Cardiac Death
Ventricular Fibrillation
Action Potentials
12 Citations (Scopus)

Feasibility of visualizing higher regions of Shannon entropy in atrial fibrillation patients

Arunachalam, S. P., Mulpuru, S. K., Friedman, P. A. & Tolkacheva, E. G., Nov 4 2015, 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2015. Institute of Electrical and Electronics Engineers Inc., Vol. 2015-November. p. 4499-4502 4 p. 7319394

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pulmonary Veins
Entropy
Atrial Fibrillation
Rotors
Catheter Ablation
14 Citations (Scopus)

Free fatty acid effects on the atrial myocardium: Membrane ionic currents are remodeled by the disruption of T-tubular architecture

O'Connell, R. P., Musa, H., Gomez, M. S. M., Avula, U. M., Herron, T. J., Kalifa, J., Anumonwo, J. M. B. & Talkachova, A., Aug 14 2015, In : PloS one. 10, 8, e0133052.

Research output: Contribution to journalArticle

myocardium
Nonesterified Fatty Acids
free fatty acids
Myocardium
myocytes
16 Citations (Scopus)
Vagus Nerve
Electrophysiology
Electric Stimulation
Vagus Nerve Stimulation
Cardiac Arrhythmias
3 Citations (Scopus)

Real-time feedback based control of cardiac restitution using optical mapping

Kulkarni, K. & Talkachova, A., Nov 4 2015, 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2015. Institute of Electrical and Electronics Engineers Inc., Vol. 2015-November. p. 5920-5923 4 p. 7319739

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Action Potentials
Feedback
pamidronate
Anti-Arrhythmia Agents
Microelectrodes
7 Citations (Scopus)

The role of short term memory and conduction velocity restitution in alternans formation

Wei, N., Mori, Y. & Tolkacheva, E. G., Feb 1 2015, In : Journal of Theoretical Biology. 367, p. 21-28 8 p.

Research output: Contribution to journalArticle

Memory Term
Action Potential
action potentials
Short-Term Memory
Conduction
2016
9 Citations (Scopus)

Chronic cyclic vagus nerve stimulation has beneficial electrophysiological effects on healthy hearts in the absence of autonomic imbalance

Lee, S. W., Li, Q., Libbus, I., Xie, X., Kenknight, B. H., Garry, M. G. & Talkachova, A., May 1 2016, In : Physiological Reports. 4, 9, p. 1-8 8 p.

Research output: Contribution to journalArticle

Vagus Nerve Stimulation
pamidronate
Action Potentials
Vagus Nerve
Autonomic Nervous System
2 Citations (Scopus)

Intelligent fractional-order PID (FOPID) heart rate controller for cardiac pacemaker

Arunachalam, S. P., Kapa, S., Mulpuru, S. K., Friedman, P. A. & Tolkacheva, E. G., Dec 27 2016, 2016 IEEE Healthcare Innovation Point-of-Care Technologies Conference, HI-POCT 2016. Institute of Electrical and Electronics Engineers Inc., p. 105-108 4 p. 7797708

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fuzzy Logic
Heart Rate
Intelligence
1 Citation (Scopus)

Kurtosis as a statistical approach to identify the pivot point of the rotor

Arunachalam, S. P., Annoni, E. M., Mulpuru, S. K., Friedman, P. A. & Tolkacheva, E. G., Oct 13 2016, 2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2016. Institute of Electrical and Electronics Engineers Inc., Vol. 2016-October. p. 497-500 4 p. 7590748

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Atrial Fibrillation
Rotors
Catheters
Ablation
Cardiac Electrophysiologic Techniques
6 Citations (Scopus)

Novel multiscale frequency approach to identify the pivot point of the rotor

Arunachalam, S. P., Annoni, E. M., Mulpuru, S. K., Friedman, P. A. & Tolkacheva, E. G., Jun 1 2016, In : Journal of Medical Devices, Transactions of the ASME. 10, 2, 020948.

Research output: Contribution to journalArticle

Rotors
2 Citations (Scopus)

Pro-arrhythmic effect of heart rate variability during periodic pacing

Kulkarni, K., Lee, S. W. & Talkachova, A., Oct 13 2016, 2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2016. Institute of Electrical and Electronics Engineers Inc., Vol. 2016-October. p. 149-152 4 p. 7590662

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Heart Rate
Cardiac Arrhythmias
Heart Diseases
Anti-Arrhythmia Agents
Computer simulation
1 Citation (Scopus)

Rotor pivot point identification with intrinsic mode function complexity index using empirical mode decomposition

Arunachalam, S. P., Mulpuru, S. K., Friedman, P. A. & Tolkacheva, E. G., Jul 8 2016, 2016 IEEE EMBS International Student Conference: Expanding the Boundaries of Biomedical Engineering and Healthcare, ISC 2016 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 7508597

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Atrial Fibrillation
Rotors
Decomposition
Ablation
stroke
4 Citations (Scopus)

The dual effect of ephaptic coupling on cardiac conduction with heterogeneous expression of connexin 43

Wei, N., Mori, Y. & Talkachova, A., May 21 2016, In : Journal of Theoretical Biology. 397, p. 103-114 12 p.

Research output: Contribution to journalArticle

connexins
Connexin 43
Conduction
Cardiac
Gap Junction
2017
1 Citation (Scopus)

Computational and Mathematical Methods in Cardiovascular Diseases

Tolkacheva, E. G., Zhao, X., Zlochiver, S. & Mori, Y., Jan 1 2017, In : Computational and mathematical methods in medicine. 2017, 4205735.

Research output: Contribution to journalEditorial

Mathematics
Computational Biology
Cardiovascular Diseases
Human
6 Citations (Scopus)

Constant DI pacing suppresses cardiac alternans formation in numerical cable models

Zlochiver, S., Johnson, C. & Talkachova, A., Sep 1 2017, In : Chaos. 27, 9, 093903.

Research output: Contribution to journalArticle

Cable
Cardiac
cables
Cables
intervals