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The Neuronal cell cycle represents the life cycle of the biological cell, its creation, reproduction and eventual death. The process by which cells divide into two daughter cells is called mitosis . Once these cells are formed they enter G1, the phase in which many of the proteins needed to replicate DNA are made.
The cell cycle hypothesis of AD proposes that the disease is caused by aberrant re-entry of different neuronal populations into the cell division cycle, following a 2-hit hypothesis (Nagy et al. 1998). The cell cycle hypothesis of AD also attempts to explain for the characteristic senile plaques and the neurofibrillary tangles of AD pathology.
[1] [2] [3] Experimental recordings from large groups of neurons have shown bursts of activity, so-called neuronal avalanches, with sizes that follow a power law distribution. These results, and subsequent replication on a number of settings, led to the hypothesis that the collective dynamics of large neuronal networks in the brain operates ...
In 2002, the American neuroscientist P. Read Montague [4] articulated the need to examine the neural activity of multiple individuals at one time. To this point, Montague and his colleagues wrote, "Studying social interactions by scanning the brain of just one person is analogous to studying synapses while observing either the presynaptic neuron or the postsynaptic neuron, but never both ...
A neural circuit is a population of neurons interconnected by synapses to carry out a specific function when activated. [1] Multiple neural circuits interconnect with one another to form large scale brain networks. [2] Neural circuits have inspired the design of artificial neural networks, though there are significant differences.
Due to their active division and undifferentiated nature, meristematic cells form the foundation for the formation of new organs and the continuous expansion of the plant body throughout the plant's life cycle. Meristematic cells are small, with thin primary cell walls and small or no vacuoles.
Neural field models are another important tool in studying neural oscillations and are a mathematical framework describing evolution of variables such as mean firing rate in space and time. In modeling the activity of large numbers of neurons, the central idea is to take the density of neurons to the continuum limit , resulting in spatially ...
Lê Viết Quốc (born 1982), [1] or in romanized form Quoc Viet Le, is a Vietnamese-American computer scientist and a machine learning pioneer at Google Brain, which he established with others from Google. He co-invented the doc2vec [2] and seq2seq [3] models in natural language processing.