| NAE | net acid excretion |
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| NAF | nafcillin; National Amputation Foundation; National Ataxia Foundation; net acid flux |
| NAI | net acid input; no accidental injury; no acute inflammation; nonadherence index |
| NDP | net dietary protein; nucleoside diphosphate |
| NET | nasoendotracheal tube; nerve excitability test; neuroectodermal tumor; neuroendocrine tumor; norepin... |
| neural induction | In vertebrates the formation of the nervous system from the ectoderm of the early embryo as a result of a signal from the underlying mesoderm of the archenteron roof, also called primary neural induction. The mechanism of neural induction is not yet clear. (18 Nov 1997) |
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| neural layer of optic retina | See: retina. (05 Mar 2000) |
| neural layer of retina | The internal layer of the retina containing the neural elements, as distinguished from the outer leaf of the retina, or pigmented layer. Synonym: pars optica retinae, neural layer of retina, optic part of retina, stratum cerebrale retinae. (05 Mar 2000) |
| neural part of hypophysis | It is composed of the infundibulum and the nervous lobe of hypophysis. See: hypophysis. Synonym: lobus posterior hypophyseos, neural part of hypophysis, pars nervosa hypophyseos, posterior lobe of hypophysis. Origin: neuro-+ hypophysis (05 Mar 2000) |
| neural pathway | <anatomy> Neural tracts connecting one part of the nervous system with another. (12 Dec 1998) |
| neural plate | <embryology> A region of embryonic ectodermal cells, called neuroectoderm, that lie directly above the notochord. During neurulation, they change shape, so as to produce an infolding of the neural plate (the neural fold) that then seals to form the neural tube. (04 Jul 1999) |
| neural retina | <embryology> Layer of nerve cells in the retina, embryologically part of the brain. The incoming light passes through nerve fibres and intermediary nerve cells of the neural retina, before encountering the light sensitive rods and cones at the interface between neural retina and the pigmented retinal epithelium. (04 Jul 1999) |
| neural segment | Alternate swellings and constrictions seen along the neuraxis at early stages of neural tube development, thought to be evidence of intrinsic segmentation in the CNS. Neuromeres or segments in the hindbrain region are called rhombomeres and have been shown to be lineage restriction units, each constructing a defined piece of hindbrain. (18 Nov 1997) |
| neural spine | The middle point of the neural arch of the typical vertebra, represented by the spinous process. (05 Mar 2000) |
| neural tube | <embryology> The progenitor of the central nervous system. See: neural plate, neurulation. (18 Nov 1997) |
| neural tube defect | <neurology, paediatrics> Abnormal development during embryonic life of the neural tube producing congenital malformations of the nervous system due to closure failure of the neural tube. The structure gives rise to the central nervous system (the brain and spinal cord), and failure to close results in anencephaly (absence of the cranial vault and absence of most or all of the cerebral hemispheres of the brain) and spina bifida or meningomyelocele (open spina with exposure and protusion of the spinal cord). The risk of neuroal tube defects can be decreased by the mother taking folic acid during pregnancy. (04 Jul 1999) |
| dorsal plate of neural tube | The thin layer of the embryonic neural tube connecting the alar plate's dorsally. Synonym: dorsal plate of neural tube. (05 Mar 2000) |
| dorsolateral plate of neural tube | The dorsal division of the lateral walls of the neural tube in the embryo; it gives rise to neurons relaying afferent impulses to higher centres; in the adult such neurons compose the sensory nuclei of the spinal cord and brainstem. Synonym: lamina alaris, alar plate of neural tube, dorsolateral plate of neural tube, lamina dorsalis, wing plate. (05 Mar 2000) |
| neural network |
(also called artificial neural network, abbr. ANN). A network where the nodes correspond to neurons and the arcs correspond to synaptic connections in the biological metaphor. The following properties are included:
Ãâó: home.eunet.cz/berka/o/English/lp/glossary/N.html
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| neural network |
A processing architecture derived from models of neuron interconnections of the brain. Typically different from computers by incorporating learning rather than programming and parallel rather than sequential processing.
Ãâó: www.baneng.com/literature_resources/reference/glos...
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| neural network |
A type of statistical computer program which classifies large and complex data sets by grouping cases together in a way similar to the human brain. Used in data mining.
Ãâó: www.audiencedialogue.org/gloss-stats.html
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| neural network |
A representation of a human brain similar in that both a brain and a neural network consist of input neurons gathering information from an external environment, synapses which interlace the input neurons' information in complex but fairly predictable patterns, and output neurons which turn the patterns of the synapses into actions made on the external environment. ...
Ãâó: www.krl.caltech.edu/~charles/alife-game/glossary.h...
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| neural network |
A network of NEURONS that are connected through SYNAPES or WEIGHTS. In this book, the term is used almost exclusively to denote an artificial neural network and not the real thing. Each neuron performs a simple calculation that is a FUNCTION of the AVTIVATIONS of the neurons that are connected to it. ...
Ãâó: www.agsm.edu.au/~bobm/teaching/SimSS/glossary.html
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