Orexin-producing neurons are clearly essential for the regulation of wakefulness and sleep because loss of these cells produces narcolepsy. However, little is understood about how these neurons dynamically interact with other wake- and sleep-regulatory nuclei to control behavioral states. Using survival analysis of wake bouts in wild-type and orexin knockout mice, we found that orexins are nece...

In this article, we discuss mathematical models that address the control of sleep-wake behavior in the infant and adult rodent and a model that addresses changes in single-cell firing patterns in the hippocampus across wake and rapid eye movement (REM) sleep states. Each of the models describes the dynamics of experimentally identified neuronal components--either the firing activity of wake-and...

in this paper a new form of the homptopy perturbation method is used for solving oscillator differential equation, which yields the maclaurin series of the exact solution. nonlinear vibration problems and differential equation oscillations have crucial importance in all areas of science and engineering. these equations equip a significant mathematical model for dynamical systems. the accuracy o...

for most people iterance to hospital is a disturbing experience and expects that nurses be sensitive to patient's physical, emotional and social need at admission. whereas interrupt of sleep due to physical, psychological and social status damage, knowing about effective mechanisms in retention and disturbance of sleep – wake cycles help nurses to make natural criteria for their patient&ap...

Heart chaotic system and the ability of particle swarm optimization (PSO) method motivated us to benefit the method of chaotic particle swarm optimization (CPSO) to synchronize the heart three-oscillator model. It can be a suitable algorithm for strengthening the controller in presence of unknown parameters. In this paper we apply adaptive control (AC) on heart delay model, also examine the sys...

Adelic quantum mechanics is formulated. The corresponding model of the harmonic oscillator is considered. The adelic harmonic oscillator exhibits many interesting features. One of them is a softening of the uncertainty relation.

1 (Oral/Poster) MULTICELLULAR HUMAN TESTICULAR ORGANOID: A NOVEL IN VITRO GERM CELL AND TESTICULAR TOXICITY MODEL Samuel Pendergraft, MS1, Hooman Sadri-Ardekani, MD, PhD2, Tanya Reid, BS3, Anthony Atala, MD2 and Colin Bishop, PhD1 1(1) Molecular Medicine and Translational Science Graduate Program, Wake Forest University Health Sciences, Winston-Salem, NC (2) Wake Forest Institute for Regenerati...

Vortex-induced vibrations (VIVs) of a flexible cylinder subjected to multi-directional flows have been studied based on wake oscillator model. The flow comprises two slabs in different directions, with each slab having uniform uni-directional profile. dynamics the is described linear Euler–Bernoulli beam theory, and model uniformly distributed along hydrodynamic force acting it. coupled system ...

We perform an analytical study of the correspondence between a classical oscillator with frequency perturbed by a coloured noise and the one-dimensional Anderson-type model with correlated diagonal disorder. It is rigorously shown that localisation of electronic states in the quantum model corresponds to exponential divergence of nearby trajectories of the classical random oscillator. We discus...