منابع مشابه
Membrane ionic current of the propagated action potential. A new method.
Since HODGKIN et al. (1949) first recorded membrane ionic currents by the technique of voltage clamping the membrane of squid giant axons, it has been possible to predict precisely the ionic currents produced by an action potential. However, the ionic current produced during the propagating action potential can be obtained only after intricate experiments and laborious calculations. Employing t...
متن کاملChaotic dynamics in an ionic model of the propagated cardiac action potential.
We simulate the effect of periodic stimulation on a strand of ventricular muscle by numerically integrating the one-dimensional cable equation using the Beeler-Reuter model to represent the transmembrane currents. As stimulation frequency is increased, the rhythms of synchronization [1:1----2:2----2:1----4:2---- irregular----3:1----6:2----irregular----4:1----8:2----...----1:0] are successively ...
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چکیده-پخش بار بهینه به عنوان یکی از ابزار زیر بنایی برای تحلیل سیستم های قدرت پیچیده ،برای مدت طولانی مورد بررسی قرار گرفته است.پخش بار بهینه توابع هدف یک سیستم قدرت از جمله تابع هزینه سوخت ،آلودگی ،تلفات را بهینه می کند،و هم زمان قیود سیستم قدرت را نیز برآورده می کند.در کلی ترین حالتopf یک مساله بهینه سازی غیر خطی ،غیر محدب،مقیاس بزرگ،و ایستا می باشد که می تواند شامل متغیرهای کنترلی پیوسته و گ...
The Parallelism between the Action Potential, Action Current, and Membrane Resistance at a Node of Ranvier
1. Simultaneous measurements of action potential and resistance and of action current and impedance change have been made at a single node of Ranvier. 2. There is a parallelism between action potential, action current, and resistance change measured at a node of Ranvier. 3. Some implications of these results have been discussed in relation to the corresponding data obtained from the squid giant...
متن کاملIonic gradients, membrane potential and ionic currents
The neuronal plasma membrane delimits the whole neuron, cell body, dendrites, dendritic spines, axon and axon terminals. It is a barrier between the intracellular and extracellular environments. The general structure of the neuronal plasma membrane is similar to that of other plasma membranes. It is made up of proteins inserted in a lipid bilayer, forming as a whole a ‘fl uid mosaic’ ( Figure 3...
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ژورنال
عنوان ژورنال: The Japanese Journal of Physiology
سال: 1971
ISSN: 1881-1396,0021-521X
DOI: 10.2170/jjphysiol.21.601