Results 271 to 280 of about 119,280 (298)
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2008
Changes in cellular Ca2+ concentration control a wide range of physiological processes, from the subsecond release of synaptic neurotransmitters, to the regulation of gene expression over months or years. Ca2+ can also trigger cell death through both apoptosis and necrosis, and so the regulation of cellular Ca2+ concentration must be tightly controlled
Ruediger, Thul +4 more
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Changes in cellular Ca2+ concentration control a wide range of physiological processes, from the subsecond release of synaptic neurotransmitters, to the regulation of gene expression over months or years. Ca2+ can also trigger cell death through both apoptosis and necrosis, and so the regulation of cellular Ca2+ concentration must be tightly controlled
Ruediger, Thul +4 more
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ELECTROPHORESIS, 2006
AbstractChemical oscillations are driven by the gradient of the chemical potential so that they can appear in systems where the substances are not in chemical equilibrium. We show that under the influence of the electric field, concentrations of electrically charged substances in solutions can oscillate even if the system is in chemical equilibrium ...
Vlastimil, Hruska +2 more
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AbstractChemical oscillations are driven by the gradient of the chemical potential so that they can appear in systems where the substances are not in chemical equilibrium. We show that under the influence of the electric field, concentrations of electrically charged substances in solutions can oscillate even if the system is in chemical equilibrium ...
Vlastimil, Hruska +2 more
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2004
Cellular signaling mechanisms are designed to transmit information from the cell surface to specific targets within the cell. Usually, the information is transmitted by intracellular messengers, of which the calcium ion, Ca2+, is one of the most important.
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Cellular signaling mechanisms are designed to transmit information from the cell surface to specific targets within the cell. Usually, the information is transmitted by intracellular messengers, of which the calcium ion, Ca2+, is one of the most important.
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International Journal of Bifurcation and Chaos, 2008
The memristor has attracted phenomenal worldwide attention since its debut on 1 May 2008 issue of Nature in view of its many potential applications, e.g. super-dense nonvolatile computer memory and neural synapses. The Hewlett–Packard memristor is a passive nonlinear two-terminal circuit element that maintains a functional relationship between the ...
Itoh, Makoto, Chua, Leon O.
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The memristor has attracted phenomenal worldwide attention since its debut on 1 May 2008 issue of Nature in view of its many potential applications, e.g. super-dense nonvolatile computer memory and neural synapses. The Hewlett–Packard memristor is a passive nonlinear two-terminal circuit element that maintains a functional relationship between the ...
Itoh, Makoto, Chua, Leon O.
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Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2002
The wave theory of light, and in particular the principle of interference, was formulated by Thomas Young in 1801. In the 20th century, the principle of interference was extended to the quantum mechanical wave functions describing matter. The phenomenon of quantum mechanical interference of different neutrino states, neutrino oscillations, has provided
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The wave theory of light, and in particular the principle of interference, was formulated by Thomas Young in 1801. In the 20th century, the principle of interference was extended to the quantum mechanical wave functions describing matter. The phenomenon of quantum mechanical interference of different neutrino states, neutrino oscillations, has provided
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“Oscillating” Metallocene Catalysts: What Stops the Oscillation?
Journal of the American Chemical Society, 2003The 150 MHz (13)C NMR microstructural analysis of polypropylene samples produced with two representative "oscillating" metallocene catalysts of largely different steric hindrance, namely [(2-(3,5-di-tert-butyl-4-methoxyphenyl)indenyl)(2)ZrP](+) and [(2-phenylindenyl)(2)ZrP](+) (P = polymeryl), and the implications on the origin of the stereocontrol are
BUSICO, VINCENZO +6 more
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Reviving Oscillations in Coupled Nonlinear Oscillators
Physical Review Letters, 2013By introducing a processing delay in the coupling, we find that it can effectively annihilate the quenching of oscillation, amplitude death (AD), in a network of coupled oscillators by switching the stability of AD. It revives the oscillation in the AD regime to retain sustained rhythmic functioning of the networks, which is in sharp contrast to the ...
Zou, W. +3 more
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Simultaneous Oscillations in Oscillators
Transactions of the IRE Professional Group on Circuit Theory, 1954An oscillator with two degrees of freedom can, under certain conditions, oscillate simultaneously at two different frequencies. The ratio of the two frequencies may be rational (synchronous oscillations) or irrational (asynchronous oscillations). The conditions necessary for 'simultaneous oscillations are discussed for these two cases.
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Annals of Otology, Rhinology & Laryngology, 1977
A variety of abnormal ocular oscillations consequent to brain stem and cerebellar dysfunction are described. The brain stem eye signs include: See-saw nystagmus, convergence-retraction nystagmus, down-beat nystagmus, ocular myoclonus, ocular bobbing, and superior oblique myokymia.
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A variety of abnormal ocular oscillations consequent to brain stem and cerebellar dysfunction are described. The brain stem eye signs include: See-saw nystagmus, convergence-retraction nystagmus, down-beat nystagmus, ocular myoclonus, ocular bobbing, and superior oblique myokymia.
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Oscillating viscous flows: II superposed oscillations
Mathematika, 1991Summary: The flow induced by an oscillating circular cylinder which may perform transverse, torsional and axial vibrations is considered. The steady streaming associated with purely transverse vibrations of the cylinder may be significantly modified by the presence of, and interaction with, torsional oscillations.
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