Listar Mathematical Modelling in Biosciences por fecha de publicación
Mostrando ítems 1-20 de 76
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Spectral analysis of a block-triangular preconditioner for the bidomain system in electrocardiology
(2012-12-31)In this paper we analyze in detail the spectral properties of the block-triangular preconditioner introduced by Gerardo-Giorda et al. [J. Comput. Phys., 228 (2009), pp. 3625-3639] for the Bidomain system in non-symmetric ... -
Optimized schwarz methods for the bidomain system in electrocardiology
(2013-12-31)The propagation of the action potential in the heart chambers is accurately described by the Bidomain model, which is commonly accepted and used in the specialistic literature. However, its mathematical structure of a ... -
Structuring targeted surveillance for monitoring disease emergence by mapping observational data onto ecological process
(2013-12-31)An efficient surveillance system is a crucial factor in identifying, monitoring and tackling outbreaks of infectious diseases. Scarcity of data and limited amounts of economic resources require a targeted effort from public ... -
Numerical simulation of a susceptible-exposed-infectious space-continuous model for the spread of rabies in raccoons across a realistic landscape
(2013-12-31)We introduce a numerical model for the spread of a lethal infectious disease in wildlife. The reference model is a Susceptible-Exposed-Infectious system where the spatial component of the dynamics is modelled by a diffusion ... -
Optimized schwarz methods and model adaptivity in electrocardiology simulations
(2014-12-31)[No abstract available] -
Incorporating landscape heterogeneities in the spread of an epidemics in wildlife
(2014-12-31)One of the main difficulties in the modeling and numerical simulation of the spread of an infectious disease in wildlife resides in properly taking into account the heterogeneities of the landscape. Forests, plains and ... -
Large-scale simulations of synthetic markets
Gerardo-Giorda, L.; Germano, G.; Scalas, E.
(2015-10-08)
High-frequency trading has been experiencing an increase of interest both for practical purposes within nancial institutions and within academic research; recently, the UK Government O ce for Science reviewed the state ... -
Information Flow between Resting-State Networks
Diez, I.; Erramuzpe, A.; Escudero, I.; Mateos, B.; Cabrera, A.; Marinazzo, D.; Sanz-Arigita, E.J.; Stramaglia, S.; Cortes Diaz, J.M. (2015-12-31)
The resting brain dynamics self-organize into a finite number of correlated patterns known as resting-state networks (RSNs). It is well known that techniques such as independent component analysis can separate the brain ... -
Functional connectivity of EEG signals under laser stimulation in migraine
de Tommaso, M.; Trotta, G.; Vecchio, E.; Ricci, K.; Van de Steen, F.; Montemurno, A.; Lorenzo, M.; Marinazzo, D.; Bellotti, R.; Stramaglia, S. (2015-12-31)
In previous studies, migraine patients showed abnormalities in pain-related evoked responses, as reduced habituation to repetitive stimulation. In this study, we aimed to apply a novel analysis of EEG bands synchronization ... -
Extreme brain events: Higher-order statistics of brain resting activity and its relation with structural connectivity
Amor, T.A.; Russo, R.; Diez, I.; Bharath, P.; Zirovich, M.; Stramaglia, S.; Cortes, J.M.; de Arcangelis, L.; Chialvo, D.R. (2015-12-31)
The brain exhibits a wide variety of spatiotemporal patterns of neuronal activity recorded using functional magnetic resonance imaging as the so-called blood-oxygenated-level-dependent (BOLD) signal. An active area of work ... -
Longitudinal variations of brain functional connectivity: A case report study based on a mouse model of epilepsy
Erramuzpe, A.; Encinas, J.M.; Sierra, A.; Maletic-Savatic, M.; Brewster, A.L.; Anderson, A.E.; Stramaglia, S.; Cortes, J.M. (2015-12-31)
Brain Functional Connectivity (FC) quantifies statistical dependencies between areas of the brain. FC has been widely used to address altered function of brain circuits in control conditions compared to different pathological ... -
Parallelizing the Kolmogorov-Fokker-Planck Equation
(2015-12-31)We design two parallel schemes, based on Schwarz Waveform Relaxation (SWR) procedures, for the numerical solution of the Kolmogorov equation. The latter is a simplified version of the Fokker-Planck equation describing the ... -
Geometry shapes propagation: Assessing the presence and absence of cortical symmetries through a computational model of cortical spreading depression
Kroos, J.M.; Diez, I.; Cortes, J.M.; Stramaglia, S.; Gerardo-Giorda, L. (2015-12-31)
Cortical spreading depression (CSD), a depolarization wave which originates in the visual cortex and travels toward the frontal lobe, has been suggested to be one neural correlate of aura migraine. To the date, little is ... -
Lagged and instantaneous dynamical influences related to brain structural connectivity
Alonso, C.; Diez, I.; Remaki, L.; Escudero, I.; Mateos, B.; Rosseel, Y.; Marinazzo, D.; Stramaglia, S.; Cortes, J.M. (2015-12-31)
Contemporary neuroimaging methods can shed light on the basis of human neural and cognitive specializations, with important implications for neuroscience and medicine. Indeed, different MRI acquisitions provide different ... -
Computational modeling of open-irrigated electrodes for radiofrequency cardiac ablation including blood motion-saline flow interaction
(2016)Radiofrequency catheter ablation (RFCA) is a routine treatment for cardiac arrhythmias. During RFCA, the electrode-tissue interface temperature should be kept below 80°C to avoid thrombus formation. Open-irrigated electrodes ... -
Computational Model for Prediction of the Occurrence of Steam Pops during Irrigated Radiofrequency Catheter Ablation
(2016)Radiofrequency catheter ablation (RFCA) is a curative treatment for cardiac arrhythmias. Although globally a pretty safe procedure, it may present some risk. Steam pop is a serious complication that can occur during RFCA ... -
An introduction to mathematical and numerical modeling in heart electrophysiology
(2016)The electrical activation of the heart is the biological process that regulates the contraction of the cardiac muscle, allowing it to pump blood to the whole body. In physiological conditions, the pacemaker cells of the ... -
A computational model of open-irrigated electrode for endocardial RF catheter ablation
(2016-01-01)Radiofrequency catheter ablation (RFCA) is an important curative treatment for cardiac arrhythmias. However, during RFCA thrombus formation can occur when the electrode-tissue interface temperature exceeds 80°C. Open-irrigated ... -
Comparative analysis of different methods of modeling the thermal effect of circulating blood flow during RF cardiac ablation
(2016-01-01)Our aim was to compare the different methods of modeling the effect of circulating blood flow on the thermal lesion dimensions created by radio frequency (RF) cardiac ablation and on the maximum blood temperature. Computational ... -
Temporal excitation patterns on the cerebral cortex as a result of migraine modeling
Kroos, J.M.; Diez, I.; Cortes, J.M.; Stramaglia, S.; Gerardo-Giorda, L. (2016-06-29)
The complex, highly individual, geometry of the cerebral cortex in humans presents a major challenge in studying the spreading of spontaneous neuronal activity. Recent computational advances [1] allow to simulate the ...