Results 211 to 220 of about 189,264,868 (250)
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Simulations with a large number of neurons
Journal of Physics A: Mathematical and General, 1989The authors propose a new algorithm for evolution of neural networks, by division of the network into subnets, in order to reach retrieval of stored correlated patterns. They present a fast code for simulations with a large number of neurons ( approximately 10000). The simulations were carried out on a microcomputer.
T J P Penna, P M C Oliveira
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Logistics of neuronal protein turnover: Numbers and mechanisms
Molecular and Cellular Neuroscience, 2022Research in the past twenty years or so has revealed that neurons synthesize and degrade proteins at their synapses to enable synaptic proteome remodelling on demand and in real-time. Here we provide a quantitative overview of the decentralized neuronal protein-turnover logistics.
Sun, C. +1 more
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Fermat Number Applications and Fermat Neuron
2015This chapter presents Fermat numbers, and their applications to filtering, autocorrelation, and related areas with advantages over the conventional computing. This paper discusses the basic concepts of prime numbers like Mersenne primes and Fermat primes and their comparison for computing with advantage, modulo arithmetic, Galois field, and Chinese ...
V. K. Madan +2 more
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Neuron addition during growth of the postmetamorphic bullfrog: Sensory neuron and axon number
The Journal of Comparative Neurology, 1997Neuron addition is one means whereby the nervous system can compensate for increased body size. Neurons can be added either by mitosis of stem cells or by late differentiation of committed precursors. Previously, the doubling of hind limb dorsal root ganglion (DRG) neurons in postmetamorphic bullfrogs (Rana catesbeiana) was found to occur in the ...
M L, Meeker, P B, Farel
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Neuronal subtypes and anatomic asymmetry: changes in neuronal number and cell-packing density
Neuroscience, 1993The combined volume of an asymmetric cytoarchitectonic area is smaller than that of symmetric homologs. Asymmetry reflects fewer numbers of neurons in the smaller of the two sides. In this study we examined two types of neurons to check whether lateral differences in neuronal numbers affect different types of neurons comparably in the neocortex of the ...
G D, Rosen, G F, Sherman, A M, Galaburda
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Design-based estimation of neuronal number and individual neuronal volume in the rat hippocampus
Journal of Neuroscience Methods, 2007Tools recently developed in stereology were employed for unbiased estimation of the neuronal number and volume in three major subdivisions of rat hippocampus (dentate granular, CA1 and CA3 pyramidal layers). The optical fractionator is used extensively in quantitative studies of the hippocampus; however, the classical optical fractionator design may be
Hosseini-Sharifabad, Mohammad +1 more
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THE NUMBERS OF NEURONES IN DECAPOD CRUSTACEA
Journal of Crustacean Biology, 1988THE NUMBERS OF NEURONES IN CRUSTACEA Details regarding the nervous system of Crustacea rest heavily on the larger Decapoda. Investigations into the arrangements in all the other groups and of larval stages are few and far between. In many ways this is understandable, for the larger adult decapods are much more amenable to physiological work and it is ...
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Unbiased number of vestibular ganglion neurons in the mouse
Neuroscience Letters, 1998Vestibular sensory information from the labyrinth and otolith organs is conducted to the central nervous system exclusively via primary vestibular afferents (PVA) originating from neurons located in the vestibular ganglion (VG). In the present study, the total number of VG neurons was determined in two different wild-type mouse strains using the ...
J, Bäurle, W, Guldin
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Number faculty is alive and kicking: On number discriminations and number neurons
Behavioral and Brain Sciences, 2017AbstractLeibovich et al. advocate for a single “sense of magnitude” to which a dedicated faculty for number could allegedly be reduced. This conclusion is unjustified as the authors adopt an unnecessarily narrow definition of “number sense,” neglect studies that demonstrate non-symbolic numerosity representation, and furthermore ignore abstract number ...
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Fall in the number of intracardiac neurons in aging rats
Mechanisms of Ageing and Development, 1999The neurons of whole cardiac atria were stained using a NADH-diaphorase technique in young adult (3 months old) (GI) and aging rats (20 months old) (GII). Light microscopy revealed differences in the appearance of the neurons in the two groups. In GI, most ganglia contained 50-100 neurons while in GII, most ganglia usually contained 20 neurons.
F E, Akamatsu +2 more
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