Results 41 to 50 of about 678,813 (375)

The double dipole model of theta rhythm generation: Simulation of laminar field potential profiles in dorsal hippocampus of the rat [PDF]

open access: yes, 1982
A set of compartmental models of CA1 pyramidal, granular and polymorph cells of the dorsal hippocampus have been used to simulate membrane potentials generated by synaptic activation at various levels along these cells.
Boer, J.   +3 more
core   +2 more sources

Analogue modulation of back-propagating action potentials enables dendritic hybrid signalling

open access: yesNature Communications, 2016
‘Analogue’ modulation by somatic membrane potentials can modify ‘digital’ axonal action potentials. Here, the authors show that analogue modulation can occur in back-propagating dendritic action potentials and calcium signals, leading to signal ...
János Brunner, János Szabadics
doaj   +1 more source

Particle transport across a channel via an oscillating potential [PDF]

open access: yes, 2017
Membrane protein transporters alternate their substrate-binding sites between the extracellular and cytosolic side of the membrane according to the alternating access mechanism.
Dagdug, Leonardo   +4 more
core   +2 more sources

Modulation of neural cell membrane conductance by the herbal anxiolytic and antiepileptic drug aswal [PDF]

open access: yes, 2000
To evaluate the effects of aswal on ionic fluxes and neuronal excitation, we performed extracellular and whole cell patch clamp recordings on CA1 pyramidal neurons of guinea pigs and Long-Evans rats.
Grunze, Heinz   +3 more
core   +1 more source

Probing the membrane potential of living cells by dielectric spectroscopy [PDF]

open access: yesEur. Biophys. J (2009), 2008
In this paper we demonstrate a quantitative way to measure the membrane potential of live cells by dielectric spectroscopy. We also show that the values of the membrane potential obtained using our technique are in good agreement with those obtained using traditional methods-voltage sensitive dyes.
arxiv   +1 more source

Feedback-controlled solute transport through chemo-responsive polymer membranes [PDF]

open access: yes, 2022
Polymer membranes are typically assumed to be inert and nonresponsive to the flux and density of the permeating particles in transport processes. Here, we study theoretically the consequences of membrane responsiveness and feedback on the steady-state force--flux relations and membrane permeability using a nonlinear-feedback solution-diffusion model of
arxiv   +1 more source

Lateral phase separation of confined membranes [PDF]

open access: yes, 2010
We consider membranes interacting via short, intermediate and long stickers. The effects of the intermediate stickers on the lateral phase separation of the membranes are studied via mean-field approximation. The critical potential depth of the stickers increases in the presence of the intermediate sticker.
arxiv   +1 more source

MEMBRANE POTENTIALS AND CATAPHORETIC POTENTIALS OF PROTEINS [PDF]

open access: yesJournal of General Physiology, 1923
1. It has been shown in preceding publications that the membrane potentials of protein solutions or gels are determined by differences in the concentration of a common ion (e.g. hydrogen ion) inside a protein solution or protein gel and an outside aqueous solution free from protein, and that the membrane potentials can be calculated with a good degree ...
openaire   +3 more sources

Effect of channel block on the spiking activity of excitable membranes in a stochastic Hodgkin-Huxley model [PDF]

open access: yes, 2004
The influence of intrinsic channel noise on the spontaneous spiking activity of poisoned excitable membrane patches is studied by use of a stochastic generalization of the Hodgkin-Huxley model.
Chow C C   +17 more
core   +2 more sources

Effective zero-thickness model for a conductive membrane driven by an electric field [PDF]

open access: yesPhys. Rev. E, 81, 031912 (2010), 2009
The behavior of a conductive membrane in a static (DC) electric field is investigated theoretically. An effective zero-thickness model is constructed based on a Robin-type boundary condition for the electric potential at the membrane, originally developed for electrochemical systems.
arxiv   +1 more source

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