نتایج جستجو برای: depolarization

تعداد نتایج: 14729  

Journal: :Brazilian Journal of Physics 1999

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 1990
T Van Nguyen L Kobierski M Comb S E Hyman

Membrane depolarization is a critical component of neural signaling; in recent years there also has been a great deal of evidence that membrane depolarization can regulate neural gene expression. Therefore, excitatory neurotransmission may be an important mechanism of neural plasticity. We have investigated the intracellular pathways and DNA regulatory elements through which membrane depolariza...

Background and Objective: A deficiency of the enzyme pseudo cholinesterase (PChE) leads to slow hydrolysis of drugs having choline ester structure such as succinylcholine. The patients with this enzymatic disturbance should be provided long-term mechanical ventilation support until the return of normal muscle tonicity. Case presentation: The current study was performed on two female patients w...

Journal: :Symposium - International Astronomical Union 1982

Journal: :Journal of neurophysiology 2014
Kun Qian Na Yu Kristal R Tucker Edwin S Levitan Carmen C Canavier

Dopamine neurons in freely moving rats often fire behaviorally relevant high-frequency bursts, but depolarization block limits the maximum steady firing rate of dopamine neurons in vitro to ∼10 Hz. Using a reduced model that faithfully reproduces the sodium current measured in these neurons, we show that adding an additional slow component of sodium channel inactivation, recently observed in th...

Journal: :Plant physiology 2004
Mathias Brault Zahia Amiar Anne-Marie Pennarun Michèle Monestiez Zongshen Zhang Daniel Cornel Olivier Dellis Heather Knight François Bouteau Jean-Pierre Rona

In Arabidopsis suspension cells a rapid plasma membrane depolarization is triggered by abscisic acid (ABA). Activation of anion channels was shown to be a component leading to this ABA-induced plasma membrane depolarization. Using experiments employing combined voltage clamping, continuous measurement of extracellular pH, we examined whether plasma membrane H(+)-ATPases could also be involved i...

Journal: :Applied optics 2008
Gary G Gimmestad

Almost all of the depolarization papers in the lidar literature employ a physically inappropriate notation and they use a definition of the depolarization ratio that is not linear in the quantity of interest. This depolarization lidar legacy is misleading and confusing. In particular, subscripts meaning parallel and perpendicular do not apply to atmospheric parameters, such as the volume backsc...

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