In a recent paper the authors developed a stochastic model for the response of the cerebral cortex to a general anesthetic agent. The model predicted that there would be an anesthetic-induced phase change at the point of transition into unconsciousness, manifested as a divergence in the electroencephalogram spectral power, and a change in spectral energy distribution from being relatively broad...

We consider the branching and annihilating random walk A → 2A and 2A → 0 with reaction rates σ and λ, respectively, and hopping rate D, and study the phase diagram in the (λ/D, σ/D) plane. According to standard mean-field theory, this system is in an active state for all σ/D > 0, and perturbative renormalization suggests that this mean-field result is valid for d > 2; however, nonperturbative r...

in this research, tio2 nanoparticles were synthesized by a simple wet chemical method. ticl4 was used as precursor in hydrogen peroxideand ethanol. the tio2 nanoparticles were characterized by transmission electron microscopy (tem), scanning electron microscopy (sem), x-ray diffraction (xrd), electron dispersive spectroscopy (eds) and uv-vis spectrophotometer. the particle size of the as-synthe...

Finite temperature phase boundary between superfluid phase and normal state is analytically derived by studying the stability of normal state in rotating bosonic optical lattice. We also analytically prove that the oscillation behavior of critical hopping matrix directly follows the upper boundary of Hofstadter butterfly as the function of effective magnetic field. PACS number(s): 03.75.Lm, 05....

We consider the branching and annihilating random walk A → 2A and 2A → 0 with reaction rates σ and λ, respectively, and hopping rate D, and study the phase diagram in the (λ/D, σ/D) plane. According to standard mean-field theory, this system is in an active state for all σ/D > 0, and perturbative renormalization suggests that this mean-field result is valid for d > 2; however, nonperturbative r...

      In this research, TiO2 nanoparticles were synthesized by a simple wet chemical method. TiCl4 was used as precursor in hydrogen peroxideand ethanol. The TiO2 nanoparticles were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), electron dispersive spectroscopy (EDS) and UV-Vis spectrophotome...

superparamagnetic single phase zinc ferrite nanoparticles have been prepared by coprecipitation method at 20 °c without any subsequent calcination. the composition, crystallite size, microstructure and magnetic properties of the prepared nanoparticles were investigated using x-ray diffraction (xrd), field emission scanning electron microscope (fesem), transmission electron microscope (tem), fou...

This work presents a technique for detuning or applying phase distortion to specific spectral components of an arbitrary signal using a cascade of parametric second-order allpass filters. The parametric second-order allpass provides control over the position and slope of the transition region of the phase response, and this control can be used to tune a phase distortion effect to a specific fre...

Superparamagnetic single phase zinc ferrite nanoparticles have been prepared by coprecipitation method at 20 °C without any subsequent calcination. The composition, crystallite size, microstructure and magnetic properties of the prepared nanoparticles were investigated using X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), transmission electron microscope (TEM)...

Spontaneous activity in the human brain occurs in complex spatiotemporal patterns that may reflect functionally specialized neural networks. Here, we propose a subspace analysis method to elucidate large-scale networks by the joint analysis of electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) data. The new approach is based on the notion that the neuroelectrical acti...