نتایج جستجو برای: slow rusting

تعداد نتایج: 108989  

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 1983
P N Hoffman R J Lasek J W Griffin D L Price

We examined age-dependent changes in neurofilament transport in motor axons of the rat sciatic nerve. SDS-PAGE and gel fluorography confirmed that the distribution of labeled neurofilament triplet protein coincides with the major slow component a (SCa) wave in these neurons. The velocity of neurofilament transport was calculated on the basis of the location of the 50th percentile Of radioactivi...

Journal: :Current Biology 2002
Lei Wang Anthony Brown

Cytoskeletal and cytosolic proteins are transported along axons in the slow components of axonal transport at average rates of about 0.002-0.1 microm/s. This movement is essential for axonal growth and survival, yet the mechanism is poorly understood. Many studies on slow axonal transport have focused on tubulin, the subunit protein of microtubules, but attempts to observe the movement of this ...

Journal: :Behavioural Brain Research 2014
Carlos N. Oyanedel Sonja Binder Eduard Kelemen Kimberley Petersen Jan Born Marion Inostroza

Our previous experiments showed that sleep in rats enhances consolidation of hippocampus dependent episodic-like memory, i.e. the ability to remember an event bound into specific spatio-temporal context. Here we tested the hypothesis that this enhancing effect of sleep is linked to the occurrence of slow oscillatory and spindle activity during slow wave sleep (SWS). Rats were tested on an episo...

Journal: :Journal of theoretical biology 2005
Gheorghe Craciun Anthony Brown Avner Friedman

We develop a dynamical system model for the transport of neurofilaments in axons, inspired by Brown's "stop-and-go" model for slow axonal transport. We use fast/slow time-scale arguments to lower the number of relevant parameters in our model. Then, we use experimental data of Wang and Brown to estimate all but one parameter. We show that we can choose this last remaining parameter such that th...

Journal: :Journal of applied physiology 2001
E Suter W Herzog

Application of a supramaximal electrical twitch to the voluntarily contracted muscle is used to assess the level of muscle activation. Large variability in the interpolated twitch torque (ITT) has been observed when repeated stimulations are performed. It is hypothesized that this variability in ITT is caused by the stochastic nature of the timing of twitch application relative to pulses of vol...

Journal: :CoRR 2016
Guy Bresler Mina Karzand

We study the problem of learning a tree graphical model from samples such that low-order marginals are accurate. We define a distance (“small set TV” or ssTV) between distributions P and Q by taking the maximum, over all subsets S of a given size, of the total variation between the marginals of P and Q on S. Approximating a distribution to within small ssTV allows making predictions based on pa...

Journal: :The European journal of neuroscience 2003
Vera Knoblauch Wim Martens Anna Wirz-Justice Kurt Kräuchi Christian Cajochen

Electroencephalographic oscillations in the sleep spindle frequency range (11-16 Hz) are a key element of human nonrapid eye movement sleep. In the present study, sleep spindle characteristics along the anterior-posterior axis were analysed during and outside the circadian phase of melatonin secretion. Sleep electroencephalograms were recorded during naps distributed over the entire circadian c...

Journal: :Journal of neurophysiology 2010
Philip H de Guzman Farhang Nazer Clayton T Dickson

Non-REM (slow-wave) sleep has been shown to facilitate temporal lobe epileptiform events, whereas REM sleep seems more restrictive. This state-dependent modulation may be the result of the enhancement of excitatory synaptic transmission and/or the degree of network synchronization expressed within the hippocampus of the temporal lobe. The slow oscillation (SO), a ∼1 Hz oscillatory pattern expre...

Journal: :Sensors and Materials 2020

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