The response of spherical two-spin interaction models, the spherical ferromagnet (s-FM) and the spherical Sherrington-Kirkpatrick (s-SK) model, is calculated for the protocol of the so-called nonresonant hole burning (NHB) experiment for temperatures below the respective critical temperatures. It is shown that it is possible to select dynamic features in the out-of-equilibrium dynamics of both ...

Recently we found that electrophysiological (EP) heterogeneities between subepicardial and midmyocardial cells can form a substrate for reentrant ventricular arrhythmias. However, cell-to-cell coupling through gap junctions is expected to attenuate transmural heterogeneities between cell types spanning the ventricular wall. Because connexin43 (Cx43) is the principal ventricular gap junction pro...

Submitted for the MAR09 Meeting of The American Physical Society The building blocks of Dynamical Heterogeneities in dense granular media RAPHAEL CANDELIER, OLIVIER DAUCHOT, GIULIO BIROLI, CEA — Unveiling the connection between the short term relaxation and the long term dynamical heterogeneities as observed near the glass transition in super-cooled liquids and the jamming transition in granula...

UNLABELLED Initiation of cardiac arrhythmias typically follows one or more premature impulses either occurring spontaneously or applied externally. In this study, we characterize the dynamics of propagation of single (S2) and double premature impulses (S3), and the mechanisms of block of premature impulses at structural heterogeneities caused by remodeling of gap junctional conductance (Gj) in ...

The thermodynamic behavior of water seems to be closely related to static heterogeneities. These static heterogeneities are related to the local structure of water molecules, and when properly characterized, may o.er an economical explanation of thermodynamic data. The key feature of liquid water is not so much that the existence of hydrogen bonds, 1rst pointed out by Linus Pauling, but rather ...

Novel trends in pair distribution function approaches on bulk systems with nanoscale heterogeneities Emil S. Bozin & Simon J. L. Billinge To cite this article: Emil S. Bozin & Simon J. L. Billinge (2016) Novel trends in pair distribution function approaches on bulk systems with nanoscale heterogeneities, Neutron News, 27:3, 27-31, DOI: 10.1080/10448632.2016.1197602 To link to this article: http...

We investigate dynamic heterogeneities in liquid water by performing molecular dynamics simulations of the SPC/E model. We find clusters of mobile molecules. We study the temperature and time dependence of the cluster size and find that clusters grow as temperature decreases and have a maximum size at the time scale corresponding to the escape of the molecules from the cage formed by neighborin...