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000864627 1001_ $$0P:(DE-Juel1)164187$$aKrishnan, Jeyashree$$b0$$eCorresponding author
000864627 245__ $$aA Modified Ising Model of Barabási-Albert Network with Gene-type Spins
000864627 260__ $$aNew York$$bSpringer$$c2020
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000864627 520__ $$aThe central question of systems biology is to understand how individual components of a biological system such as genes or proteins cooperate in emerging phenotypes resulting in the evolution of diseases. As living cells are open systems in quasi-steady state type equilibrium in continuous exchange with their environment, computational techniques that have been successfully applied in statistical thermodynamics to describe phase transitions may provide new insights to emerging behavior of biological systems. Here we will systematically evaluate the translation of computational techniques from solid-state physics to network models that closely resemble biological networks and develop specific translational rules to tackle problems unique to living systems. Hence we will focus on logic models exhibiting only two states in each network node. Motivated by the apparent asymmetry between biological states where an entity exhibits boolean states i.e. is active or inactive, we present an adaptation of symmetric Ising model towards an asymmetric one fitting to living systems here referred to as the modified Ising model with gene-type spins. We analyze phase transitions by Monte Carlo simulations and propose mean-field solution of modified Ising model of a network type that closely resembles real-world network, the Barab\'{a}si-Albert model of scale-free networks. We show that asymmetric Ising models show similarities to symmetric Ising models with external field and undergoes a discontinuous phase transition of the first-order and exhibits hysteresis. The simulation setup presented here can be directly used for any biological network connectivity dataset and is also applicable for other networks that exhibit similar states of activity. This is a general statistical method to deal with non-linear large scale models arising in the context of biological systems and is scalable to any network size.
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000864627 536__ $$0G:(DE-Juel1)SDLQM$$aSimulation and Data Laboratory Quantum Materials (SDLQM) (SDLQM)$$cSDLQM$$fSimulation and Data Laboratory Quantum Materials (SDLQM)$$x1
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000864627 7001_ $$0P:(DE-HGF)0$$aTorabi, Reza$$b1
000864627 7001_ $$0P:(DE-Juel1)144723$$aDi Napoli, Edoardo$$b2$$ufzj
000864627 7001_ $$0P:(DE-HGF)0$$aSchuppert, Andreas$$b3
000864627 773__ $$0PERI:(DE-600)1421292-4$$a10.1007/s00285-020-01518-6$$p769–798$$tJournal of mathematical biology$$v81$$x0303-6812$$y2020
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