منابع مشابه
Perfect Timing of Tracheostomy in Patients with Traumatic Brain Injury.
Please cite this paper as: Paydar S, Khalili H, Mousavi SM. Perfect Timing of Tracheostomy in Patients with Traumatic Brain Injury. Bull Emerg Trauma. 2014;2(3):136-137. *Corresponding author: Seyed Mohsen Mousavi Number 12, Shaghayegh alley, 59thsq, Narmak, Tehran, Iran. Tel: +98-912-3776901, Fax: +9821-77924960 e-mail: [email protected] Received: February 19, 2014 Revised: April 03, 2014 ...
متن کاملPerfect timing: epigenetic regulation of the circadian clock.
In mammals, higher order chromatin structures are critical for downsizing the genome (packaging) so that the nucleus can be small. The adjustable density of chromatin also regulates gene expression, thus this post-genetic molecular mechanism is one of the routes by which phenotype is shaped. Phenotypes that arise without a concomitant mutation of the underlying genome are termed epigenetic phen...
متن کاملPerfect Associative Learning with Spike-Timing-Dependent Plasticity
Recent extensions of the Perceptron as the Tempotron and the Chronotron suggest that this theoretical concept is highly relevant for understanding networks of spiking neurons in the brain. It is not known, however, how the computational power of the Perceptron might be accomplished by the plasticity mechanisms of real synapses. Here we prove that spike-timing-dependent plasticity having an anti...
متن کاملImproved Map Decoders for Turbo Codes with Non- Perfect Timing and Phase Synchronization
This paper presents the behaviour of a turbo coding scheme when the synchronization parameters are not perfectly estimated. The paper proposes improved MAP decoding algorithms for the situations when the timing and phase error are given by the Gaussian probability distribution. It is shown that relatively simple operations can improve the bit error probability without the need of reconstructing...
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ژورنال
عنوان ژورنال: Science
سال: 2009
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.325_519b