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Dive into the research topics where Igor Balaž is active.

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Featured researches published by Igor Balaž.


Modern Physics Letters B | 2011

STABILITY OF INTERCELLULAR EXCHANGE OF BIOCHEMICAL SUBSTANCES AFFECTED BY VARIABILITY OF ENVIRONMENTAL PARAMETERS

Dragutin T. Mihailovic; Mirko Budinčević; Igor Balaž; Anja Mihailović

Communication between cells is realized by exchange of biochemical substances. Due to internal organization of living systems and variability of external parameters, the exchange is heavily influenced by perturbations of various parameters at almost all stages of the process. Since communication is one of essential processes for functioning of living systems it is of interest to investigate conditions for its stability. Using previously developed simplified model of bacterial communication in a form of coupled difference logistic equations we investigate stability of exchange of signaling molecules under variability of internal and external parameters.


Central European Journal of Physics | 2013

A numerical study of synchronization in the process of biochemical substance exchange in a diffusively coupled ring of cells

Dragutin T. Mihailovic; Igor Balaž; Ilija Arsenić

In this paper we numerically investigate a model of a diffusively coupled ring of cells. To model the dynamics of individual cells we propose a map with cell affinity, which is a generalization of the logistic map. First, the basic features of a one-cell system are studied in terms of the Lyapunov exponent, Kolmogorov complexity and Sample Entropy. Second, the notion of observational heterarchy, which is a perpetual negotiation process between different levels of the description of a phenomenon, is reviewed. After these preliminaries, we study how the active coupling induced by the consideration of the observational heterarchy modifies the synchronization property of the model with N=100 cells. It is shown numerically that the active coupling enhances synchronization of biochemical substance exchange in several different conditions of cell affinity.


Modern Physics Letters B | 2012

SYNCHRONIZATION IN BIOCHEMICAL SUBSTANCE EXCHANGE BETWEEN TWO CELLS

Dragutin T. Mihailovic; Igor Balaž

In this paper, Mihailovic et al. [Mod. Phys. Lett. B25 (2011) 2407–2417] introduce a simplified model of cell communication in a form of coupled difference logistic equations. Then we investigated stability of exchange of signaling molecules under variability of internal and external parameters. However, we have not touched questions about synchronization and effect of noise on biochemical substance exchange between cells. In this paper, we consider synchronization in intercellular exchange in dependence of environmental and cell intrinsic parameters by analyzing the largest Lyapunov exponent, cross sample entropy and bifurcation maps.


Chaos Solitons & Fractals | 2016

Computing the threshold of the influence of intercellular nanotubes on cell-to-cell communication integrity

Dragutin T. Mihailovic; Vladimir Kostić; Igor Balaž; Darko Kapor

Abstract We explore how the biochemical substance exchange through tunneling nanotubes (TNTs) affects the functional stability of a multicellular system. We focus on two questions: whether TNTs can either stabilize or destabilize intercellular communication governed by gap junctions (GJs)? and how to determine the threshold at which influence of TNTs destabilize GJ-mediated communication? The goal of this article is to introduce the way in which the concept of pseudospectra can be used to provide the answers.


Modern Physics Letters B | 2012

FORMING THE FUNCTIONAL TIME IN PROCESS OF BIOCHEMICAL SUBSTANCE EXCHANGE BETWEEN CELLS IN A MULTICELLULAR SYSTEM

Dragutin T. Mihailovic; Igor Balaž

In this paper, we shortly summarized current attitudes about time in biology and then we considered the functional time and the way of its emergence. To illustrate that, we chose the simulation of forming the functional time in the process of biochemical substance exchange between three cells in a multicellular system. For that purpose π-cell coordinate system is introduced. Finally, we established a functional time barcode which is a representation of system states through the chronological time, which shows data about the process of intercellular biochemical substance exchange to which it attaches. It represents states by varying the widths and spaces of parallel lines, where system is either synchronized or not.


Chaos Solitons & Fractals | 2012

Maps serving the combined coupling for use in environmental models and their behaviour in the presence of dynamical noise

Dragutin T. Mihailovic; Mirko Budinčević; Dušanka Perišić; Igor Balaž


Chaos Solitons & Fractals | 2014

Complexity and asymptotic stability in the process of biochemical substance exchange in a coupled ring of cells

Dragutin T. Mihailovic; Vladimir Kostić; Igor Balaž; Ljiljana Cvetković


Proceedings of the 9th International Symposium on Interdisciplinary Regional Research | 2008

USE OF FORMAL CONCEPT ANALYSIS FOR CONSTRUCTION OF SUBJECTIVE INTERFACE BETWEEN BIOLOGICAL SYSTEMS AND THEIR ENVIRONMENT

Siniša Crvenković; Dragutin T. Mihailovic; Igor Balaž


International Journal of Artificial Life Research | 2012

Cell Motility Viewed as Softness

Koji Sawa; Tomohiro Shirakawa; Igor Balaž


Archive | 2012

An Essay about the Functional Time of Environmental Interfaces Regarded as Complex Biophysical Systems

Dragutin T. Mihailovic; Igor Balaž

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Ana Firanj

University of Novi Sad

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Darko Kapor

University of Novi Sad

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Koji Sawa

Japan Women's University

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Tomohiro Shirakawa

National Defense Academy of Japan

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