Role of the Neurons, Astrocytes and Particle-Wave Duality in Conventional Electromagnetic Field, Plasma Brain Dynamics and Quantum Brain Dynamics

AbstractThe impact and splash of liquid drops on solid substrates are ubiquitous in many important fields. However, previous studies have mainly focused on spherical drops while the non-spherical situations, such as raindrops, charged drops, oscillating drops, and drops affected by electromagnetic field, remain largely unexplored. Using ferrofluid, we realize various drop shapes and illustrate the fundamental role of shape in impact and splash. Experiments show that different drop shapes produce large variations in spreading dynamics, splash onset, and splash amount. However, underlying all these variations we discover universal mechanisms across various drop shapes: the impact dynamics is governed by the superellipse model, the splash onset is triggered by the Kelvin-Helmholtz instability, and the amount of splash is determined by the energy dissipation before liquid taking off. Our study generalizes the drop impact research beyond the spherical geometry, and reveals the potential of using drop shape to control impact and splash.

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Simulations of electric field at the initiation altitudes of sprites and halos generated by the thundercloud charge structure and lightning channels of causative return strokes

10.5194/egusphere-egu21-8667 ◽

2021 ◽

Author(s):

Petr Kaspar ◽

Ivana Kolmasova ◽

Ondrej Santolik ◽

Martin Popek ◽

Pavel Spurny ◽

...

Keyword(s):

Electromagnetic Field ◽

Electric Field ◽

Boundary Conditions ◽

Free Space ◽

Nonlinear Effects ◽

Charge Structure ◽

Transient Luminous Events ◽

Lightning Channel ◽

Free Parameters

<p><span>Sprites and halos are transient luminous events occurring above thunderclouds. They can be observed simultaneously or they can also appear individually. Circumstances leading to initiation of these events are still not completely understood. In order to clarify the role of lightning channels of causative lightning return strokes and the corresponding thundercloud charge structure, we have developed a new model of electric field amplitudes at halo/sprite altitudes. It consists of electrostatic and inductive components of the electromagnetic field generated by the lightning channel in free space at a height of 15 km. Above this altitude we solve Maxwell&#8217;s equations self-consistently including the nonlinear effects of heating and ionization/attachment of the electrons. At the same time, we investigate the role of a development of the thundercloud charge structure and related induced charges above the thundercloud. We show how these charges lead to the different distributions of the electric field at the initiation heights of the halos and sprites. We adjust free parameters of the model using observations of halos and sprites at the Nydek TLE observatory and using measurements of luminosity curves of the corresponding return strokes measured by an array of fast photometers. The latter measurements are also used to set the boundary conditions of the model.</span></p>

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The role of physiological elements in future therapies of rheumatoid arthritis. III. The role of the electromagnetic field in regulation of redox potential and life cycle of inflammatory cells*

Reumatologia/Rheumatology ◽

10.5114/reum.2015.54000 ◽

2015 ◽

Vol 4 ◽

pp. 219-224 ◽

Cited By ~ 1

Author(s):

Michał Gajewski ◽

Przemysław Rzodkiewicz ◽

Sławomir Maśliński ◽

Elżbieta Wojtecka-Łukasik

Keyword(s):

Rheumatoid Arthritis ◽

Electromagnetic Field ◽

Life Cycle ◽

Redox Potential ◽

Inflammatory Cells

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Heideggerian dynamics and the monadological role of the ‘between’: A crossing with quantum brain dynamics

Progress in Biophysics and Molecular Biology ◽

10.1016/j.pbiomolbio.2015.07.007 ◽

2015 ◽

Vol 119 (3) ◽

pp. 324-331 ◽

Cited By ~ 1

Author(s):

Gordon Globus

Keyword(s):

Brain Dynamics

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Multiscale modeling of brain dynamics depends upon approximations at each scale

Behavioral and Brain Sciences ◽

10.1017/s0140525x00042862 ◽

1996 ◽

Vol 19 (2) ◽

pp. 310-320

Author(s):

J. J. Wright ◽

D. T. J. Liley

Keyword(s):

Multiscale Modeling ◽

Future Development ◽

Gamma Band ◽

Brain Dynamics ◽

Memory Processes ◽

Future Developments ◽

Physiological Information ◽

The Brain

AbstractWe outline fresh findings that show that our macroscopic electrocorticographic (ECoG) simulations can account for synchronous multiunit pulse oscillations at separate, simultaneously activated cortical sites and the associated gamma-band ECoG activity. We clarify our views on the approximations of dynamic class applicable to neural events at macroscopic and microscopic scales, and the analogies drawn to classes of ANN behaviour. We accept the need to introduce memory processes and detailed anatomical and physiological information into any future developments of our simulations. On the issue of intrinsic cortical stability and the role of extrinsic fibre systems in maintaining stability, we argue that this position is not in extreme contradiction to those of our commentators, and that the mechanisms implicit in our simulations' properties imply rich computational possibilities. We discuss some of the reasons for and against the existence of significant global resonances in the brain and explain why such behaviour appears absent in our simulations. Last, we discuss other phenomena, such as rhythmic driving of the cortex, which have not yet been introduced into our models, and indicate lines for future development of the simulations.

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