24 papers · ranked by Valyu relevance
Zhiwen Song, Ye Wu, Weiqing Liu, Jinghua Xiao + 1 more
It has recently been observed in numerical simulations that the phases of two coupled nonlinear oscillators can become locked into an irrational ratio, exhibiting the phenomenon of irrational phase synchronization (IPS) [Phys. Rev. E 69, 056228 (2004)]. Here, using two coupled nonidentical periodic mechanical…
Eric Lowet, Mark J. Roberts, Pietro Bonizzi, Joël Karel + 2 more
'Peter De Weerd' 'Adriano B. L. Tort'] Synchronization or phase-locking between oscillating neuronal groups is considered to be important for coordination of information among cortical networks. Spectral coherence is a commonly used approach to quantify phase locking between neural signals. We systematically explored…
Andrés Canales-Johnson, Renzo C. Lanfranco, Valdas Noreika, Juan Pablo Morales + 9 more
Mental imagery is the process through which we retrieve and recombine information from our memory to elicit the subjective impression of “seeing with the mind’s eye”. Many studies using imaging and neurophysiological techniques have shown several similarities in brain activity between visual imagery and visual…
Qiang Lin, Shiqiang Li, Weidong Yu, Zenghui Zhang + 2 more
'Wenxian Yu'] Multistatic synthetic aperture radar (SAR) is a special mode of SAR system. The radar transmitter and receiver are located on different satellites, which brings many advantages, such as flexible baseline configuration, diverse receiving modes, and more detailed ground object classification information.…
Alexander Mörtl, Tamara Lorenz, Sandra Hirche, Eleni Vasilaki
Interactive behavior among humans is governed by the dynamics of movement synchronization in a variety of repetitive tasks. This requires the interaction partners to perform for example rhythmic limb swinging or even goal-directed arm movements. Inspired by that essential feature of human interaction, we present a…
Luís A. Aguirre, Leandro Freitas
This paper addresses important control and observability aspects of the phase synchronization of two oscillators. To this aim a feedback control framework is proposed based on which issues related to masterslave synchronization are analyzed. Comparing results using Cartesian and cylindrical coordinates in the context…
Gunnar Pruessner, Seng Cheang, Henrik Jeldtoft Jensen
Synchronization by exchange of pulses is a widespread phenomenon, observed in flashing fireflies, applauding audiences and the neuronal network of the brain. Hitherto the focus has been on integrate-and-fire oscillators. Here we consider entirely analytic time evolution. Oscillators exchange narrow but finite pulses.…
Shir Shahal, Ateret Wurzberg, Inbar Sibony, Hamootal Duadi + 4 more
'Elad Shniderman' 'Daniel Weymouth' 'Nir Davidson' 'Moti Fridman'] The synchronization of human networks is essential for our civilization and understanding its dynamics is important to many aspects of our lives. Human ensembles were investigated, but in noisy environments and with limited control over the network…
André Weber, Werner Zuschratter, Marcus J. B. Hauser
The transition between synchronized and asynchronous behaviour of immobilized yeast cells of the strain Saccharomyces carlsbergensis was investigated by monitoring the autofluorescence of the coenzyme NADH. In populations of intermediate cell densities the individual cells remained oscillatory, whereas on the level of…
E. Lowet, M. J. Roberts, A. Peter, B. Gips + 1 more
Neural synchronization^1–5^ in the gamma-band (25-80Hz) can enhance and route information flow during sensory^6–8^ and cognitive processing^2,9–11^. However, it is not understood how synchronization between neural groups is robustly achieved and regulated despite of large variability in the precise oscillation…
Benjamin Sorkin, Thomas A. Witten
Two remote agents with synchronized clocks may use them to act in concert and communicate. This necessitates some means of creating and maintaining synchrony. One method, not requiring any direct interaction between the agents, is exposing them to a common, environmental, stochastic forcing. This "noise-induced…
Sergey Belan
We study synchronization phenomenon in a self-correcting population of noisy phase oscillators with randomly distributed natural frequencies. In our model each oscillator stochastically switches its phase to the ensemble-averaged value ψ at a typical rate which is proportional to the degree of phase coherence r. The…
Masatomo Matsushima, Hiroshi Ueno, Yoshiki Kamiya, Hiroshi Kawakami
The human cerebrum is a very complex tissue consisting of over 10 billion neurons. The structure of neural circuits in the cerebral cortex has been studied for over 100 years. However, the complexity of the cerebrum has many unknown points and this is a major obstacle to understanding brain functions. Above all, it was…
Joana Cabral, Francesca Castaldo, Jakub Vohryzek, Vladimir Litvak + 5 more
A rich repertoire of oscillatory signals is detected from human brains with electro- and magnetoencephalography (EEG/MEG). However, the principles underwriting coherent oscillations and their link with neural activity remain under debate. Here, we revisit the mechanistic hypothesis that transient brain rhythms are a…
Yue Sun, Georgios Michalareas, Oded Ghitza, David Poeppel
The human brain tracks temporal regularities in acoustic signals faithfully. Recent neuroimaging studies have shown complex modulations of synchronized neural activities to the shape of stimulus envelopes. How to connect neural responses to different envelope shapes with listeners’ perceptual ability to synchronize to…
Giansimone Perrino, Diego di Bernardo
The cell cycle is present in all cells of all species and it is of fundamental importance in coordinating all the steps required for cell replication, including growth, DNA replication and cell division. Budding yeast is an unicellular organism characterised by a mother cell that buds to generate a daughter cell at…
Holger Finger, Richard Gast, Christian Gerloff, Andreas K. Engel + 1 more
Communication and dynamic routing play important roles in the human brain to facilitate flexibility in task solving and thought processes. Here, we present a new network perturbation methodology and a corresponding analysis method to investigate and demonstrate the dynamic switching between different excitable pathways…
Erik T. K. Mau, Michael G. Rosenblum
Synchronization of two or more self-sustained oscillators is a well-known and studied phenomenon, appearing both in natural and designed systems. In some cases, the synchronized state is undesired, and the aim is to destroy synchrony by external intervention. In this paper, we focus on desynchronizing two…
Soheil Saghafi, Pejman Sanaei
Resonance and synchronized rhythm are important phenomena and can be either constructive or destructive in dynamical systems in the nature, specifically in biology. There are many examples showing that the human’s body organs must maintain their rhythm in order to function properly. For instance, in the brain…
Authors not listed
This report compares various simulation and data analysis methods for free induction decay (FID) signals in Nuclear Magnetic Resonance (NMR) Spectroscopy. The methods discussed include discrete fast Fourier transformation (FFT), least squares fitting (LSF), short-time Fourier transformation (STFT), and wavelet…
Richard Winpenny, Edmund Little, Jacob Mrozek, Ciaran J Rogers + 4 more
Quantum information processing promises to revolutionise computing; quantum algorithms have been discovered that address common tasks significantly more efficiently than their classical counterparts. For a physical system to be a viable quantum computer it must be possible to initialise its quantum state, to realise a…
Kairi Masuda
Molecular dynamics simulation has been widely used to investigate underlying mechanisms of many phenomena from the atomic scale. However, it is often difficult for conventional molecular dynamics to treat a longer time scale because they are based on Newton’s equation. Here, we propose a new molecular dynamics…
Jack D. Evans, Simon Krause, Ben L. Feringa
Molecules in gas and liquid states, as well as in solution, exhibit significant and random Brownian motion. Molecules in the solid-state, although strongly immobilized, can still exhibit significant intramolecular dynamics. However, in most framework materials, these intramolecular dynamics are driven by temperature…
Kairi Masuda
Recently, phase-field modelling has been expanded to the molecular scale. However, such atomistic phase-field simulation cannot treat diffusive motions of molecules so far. Here, we modify phase-field modelling of molecular dynamics to include rigid body motions by employing quaternions and smooth random functions.…