Search Results - "Cannas, S A"

Critical exponents and scaling invariance in the absence of a critical point by Saratz, N., Zanin, D. A., Ramsperger, U., Cannas, S. A., Pescia, D., Vindigni, A.

“…The paramagnetic-to-ferromagnetic phase transition is classified as a critical phenomenon due to the power-law behaviour shown by thermodynamic observables…”
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Correction: Corrigendum: Critical exponents and scaling invariance in the absence of a critical point by Saratz, N., Zanin, D. A., Ramsperger, U., Cannas, S. A., Pescia, D., Vindigni, A.

“…Nature Communications 7: Article number: 13611 (2016); Published 5 December 2016; Updated 17 January 2017 The original version of this Article contained a…”
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Corrigendum: Critical exponents and scaling invariance in the absence of a critical point by Saratz, N, Zanin, D A, Ramsperger, U, Cannas, S A, Pescia, D, Vindigni, A

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Further results on why a point process is effective for estimating correlation between brain regions by Cifre, I., Zarepour, M., Horovitz, S. G., Cannas, S. A., Chialvo, D. R.

“…Signals from brain functional magnetic resonance imaging (fMRI) can be efficiently represented by a sparse spatiotemporal point process, according to a…”
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Phase diagram of self-assembled rigid rods on two-dimensional lattices: theory and Monte Carlo simulations by López, L G, Linares, D H, Ramirez-Pastor, A J, Cannas, S A

“…Monte Carlo simulations and finite-size scaling analysis have been carried out to study the critical behavior in a two-dimensional system of particles with two…”
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Sensitivity to initial conditions in the Bak-Sneppen model of biological evolution by TAMARIT, F. A, CANNAS, S. A, TSALLIS, C

“…We consider biological evolution as described within the Bak and Sneppen 1993 model. We exhibit, at the self-organized critical state, a power-law sensitivity…”
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Phase separation of the Potts model in the square lattice by Ibáñez de Berganza, M., Ferrero, E. E., Cannas, S. A., Loreto, V., Petri, A.

“…When the two dimensional q-color Potts model in the square lattice is quenched at zero temperature with Glauber dynamics, the energy decreases in time…”
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Anisotropy-based mechanism for zigzag striped patterns in magnetic thin films by Billoni, O. V., Bustingorry, S., Barturen, M., Milano, J., Cannas, S. A.

“…In this work, we studied a two-dimensional ferromagnetic system using Monte Carlo simulations. Our model includes exchange and dipolar interactions, a cubic…”
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Generalization properties of modular networks: implementing the parity function by Franco, L., Cannas, S.A.

“…The parity function is one of the most used Boolean function for testing learning algorithms because both of its simple definition and its great complexity. We…”
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Generalization and selection of examples in feedforward neural networks by Franco, L, Cannas, S A

“…In this work, we study how the selection of examples affects the learning procedure in a boolean neural network and its relationship with the complexity of the…”
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Modelling biological invasions: species traits, species interactions, and habitat heterogeneity by Cannas, Sergio A., Marco, Diana E., Páez, Sergio A.

“…In this paper we explore the integration of different factors to understand, predict and control ecological invasions, through a general cellular automaton…”
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Anisotropy-based mechanism for zigzag striped patterns in magnetic thin films by Billoni, O. V, Bustingorry, S, Barturen, M, Milano, J, Cannas, S. A

“…Phys. Rev. B 89, 184420, (2014) In this work we studied a two dimensional ferromagnetic system using Monte Carlo simulations. Our model includes exchange and…”
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Further results on why a point process is e ective for estimating correlation between brain regions by Cifre, Zarepour, Horovitz, S G, Cannas, S A, Chialvo, D R

“…ABSTRACT Signals from brain functional magnetic resonance imaging (fMRI) can be eciently represented by a sparse spatiotemporal point process, according to a…”
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Critical behavior of self-assembled rigid rods on two-dimensional lattices: Bethe-Peierls approximation and Monte Carlo simulations by López, L. G, Linares, D. H, Ramirez-Pastor, A. J, Stariolo, D. A, Cannas, S. A

“…The critical behavior of adsorbed monomers that reversibly polymerize into linear chains with restricted orientations relative to the substrate has been…”
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Phase diagram of self-assembled rigid rods on two-dimensional lattices: Theory and Monte Carlo simulations by López, L. G, Linares, D. H, Ramirez-Pastor, A. J, Cannas, S. A

“…The Journal of Chemical Physics 133, 134706 (2010) Monte Carlo simulations and finite-size scaling analysis have been carried out to study the critical…”
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Emergent self-organized complex network topology out of stability constraints by Perotti, J. I, Billoni, O. V, Tamarit, F. A, Chialvo, D. R, Cannas, S. A

“…Physical Review Letters 103, 108701 (2009) Although most networks in nature exhibit complex topology the origins of such complexity remains unclear. We…”
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Interplay between coarsening and nucleation in an Ising model with dipolar interactions by Cannas, S. A, Michelon, M. F, Stariolo, D. A, Tamarit, F. A

“…Physical Review E 78, 051602 (2008) We study the dynamical behavior of a square lattice Ising model with exchange and dipolar interactions by means of Monte…”
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Similar self-organizing scale-invariant properties characterize early cancer invasion and long range species spread by Marco, D. E, Cannas, S. A, Montemurro, M. A, Hu, B, Cheng, S

“…Journal of Theoretical Biology 256: 65-75 (2008) Occupancy of new habitats through dispersion is a central process in nature. In particular, long range…”
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Long-range effects in granular avalanching by Gleiser, P M, Cannas, S A, Tamarit, F A, Zheng, B

“…We introduce a model for granular flow in a one-dimensional rice pile that incorporates rolling effects through a long-range rolling probability for the…”
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Phase diagram of the Hubbard model with arbitrary band filling: renormalization group approach by CANNAS, S. A, TSALLIS, C

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