19952020

Research output per year

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Research Output

1995

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

8 Scopus citations
1996

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

1 Scopus citations

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

3 Scopus citations
1998

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

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

Research output: Contribution to journalArticle

1 Scopus citations

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

1 Scopus citations
1999

Spatial instability of counterpropagating waves in nonlinear distributed feedback structures

Afanas’ev, A. A., Tolkacheva, E. G., 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

1 Scopus citations
2002

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

28 Scopus citations
2003

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

86 Scopus citations
2004

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

47 Scopus citations

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

9 Scopus citations
16 Scopus citations

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

88 Scopus citations
2005

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

23 Scopus citations
2006

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

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

Research output: Contribution to journalArticle

43 Scopus citations
2007

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

21 Scopus citations

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

198 Scopus citations

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

16 Scopus citations

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

7 Scopus citations
2008

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

95 Scopus citations
2009

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

13 Scopus citations
2010

Mechanisms underlying the antifibrillatory action of hyperkalemia in guinea pig hearts

Pandit, S. V., Warren, M., Mironov, S., Tolkacheva, E. G., Kalifa, J., Berenfeld, O. & Jalife, J., May 19 2010, In : Biophysical journal. 98, 10, p. 2091-2101 11 p.

Research output: Contribution to journalArticle

23 Scopus citations
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

16 Scopus citations

Toward prediction of the local onset of alternans in the heart

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

Research output: Contribution to journalArticle

12 Scopus citations
2012
15 Scopus citations

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

10 Scopus citations

The effect of feedback on alternans formation in the heart

McIntyre, S. D., Mori, Y. & Tolkacheva, E. G., 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

1 Scopus citations

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

5 Scopus citations
2013
1 Scopus citations

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

13 Scopus citations

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

12 Scopus citations
1 Scopus citations
2014

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

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

Research output: Contribution to journalArticle

18 Scopus citations

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

8 Scopus citations

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

2015

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

5 Scopus citations

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., p. 4499-4502 4 p. 7319394. (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS; vol. 2015-November).

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

12 Scopus citations

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

15 Scopus citations
18 Scopus citations

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

Kulkarni, K. & 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., p. 5920-5923 4 p. 7319739. (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS; vol. 2015-November).

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

3 Scopus citations

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

7 Scopus citations
2016

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

Open Access
10 Scopus citations

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. (2016 IEEE Healthcare Innovation Point-of-Care Technologies Conference, HI-POCT 2016).

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

7 Scopus citations

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., p. 497-500 4 p. 7590748. (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS; vol. 2016-October).

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

1 Scopus citations

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

8 Scopus citations

Pro-arrhythmic effect of heart rate variability during periodic pacing

Kulkarni, K., Lee, S. W. & 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., p. 149-152 4 p. 7590662. (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS; vol. 2016-October).

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

3 Scopus citations

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. (2016 IEEE EMBS International Student Conference: Expanding the Boundaries of Biomedical Engineering and Healthcare, ISC 2016 - Proceedings).

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

1 Scopus citations

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

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

Research output: Contribution to journalArticle

Open Access
7 Scopus citations
2017

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

Open Access
1 Scopus citations

Constant DI pacing suppresses cardiac alternans formation in numerical cable models

Zlochiver, S., Johnson, C. & Tolkacheva, E. G., Sep 1 2017, In : Chaos. 27, 9, 093903.

Research output: Contribution to journalArticle

6 Scopus citations