Perturbative analysis of QCD coupling constant renormalization tells us that the coefficients in the series expansion of the β-function changes their signs depending on the number of light quark flavors. Based on this, it was suggested that long and/or short distance behavior of QCD may change with the number of light quark flavors [1]. Although these arguments are founded upon perturbation the...

A fundamental feature of the temporal organization of neural activity is phase-amplitude coupling between brain rhythms at different frequencies, where the amplitude of a higher frequency varies according to the phase of a lower frequency. Here, we show that this rule extends to brain-organ interactions. We measured both the infra-slow ( 0.05 Hz) rhythm intrinsically generated by the stomach – ...

We study the transition to phase synchronization in two diffusively coupled, nonidentical Chua oscillators. In the experiments, depending on the used parameterization, we observe several distinct routes to phase synchronization, including states of either in-phase, out-of-phase, or antiphase synchronization, which may be intersected by an intermediate desynchronization regime with large fluctua...

A fundamental feature of the temporal organization of neural activity is phase-amplitude coupling between brain rhythms at different frequencies, where the amplitude of a higher frequency varies according to the phase of a lower frequency. Here, we show that this rule extends to brain-organ interactions. We measured both the infra-slow (~0.05Hz) rhythm intrinsically generated by the stomach - t...