Results 161 to 170 of about 70,713 (213)
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The Nerve-net of Metridium senile: Artifacts and the Nerve-net
Journal of Cell Science, 1961ABSTRACT The present paper follows an account of the structure of the nervous system of Metridium, senile (L.). Conflicting statements about the actinian nervous system in the earlier literature made it necessary to assess the results of previous workers critically.
E. J. Batham +2 more
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The endodermal nerve net of Scyphozoa
Journal of Morphology, 1971AbstractThe endodermal nerve nets of the scyphozoan jellyfish Phacellophora camtschatica and Cyanea capillata were stained with methylene blue. Small animals (3–7.5 cm in diameter) stained easily. The endodermal nerve net of both species is a synaptic net consisting of bipolar and some few tripolar nerve cells with unbranched neurites.
K N, Passano, L M, Passano
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1991
Abstract By the middle of the nineteenth century, the task of understanding the nerve cell as a cellular unit depended on answering several questions: (1) how do axis cylinders arise from nerve cells? (2) what is the extent and significance of the pale branched processes of nerve cells?
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Abstract By the middle of the nineteenth century, the task of understanding the nerve cell as a cellular unit depended on answering several questions: (1) how do axis cylinders arise from nerve cells? (2) what is the extent and significance of the pale branched processes of nerve cells?
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Improved U-Net Model for Nerve Segmentation
2017Noticeable gains in computer vision have been made as a result of the large-scale datasets and deep convolutional neural networks (CNNs). CNNs have been used in a wide variety of tasks, for instance, recognition, detection, and segmentation. Recently, due to the open medical images datasets, CNNs have been used in Computer Aided Detection (CADe) to ...
Houlong Zhao, Nongliang Sun
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Changes in conduction velocity within a nerve net
Journal of Neurobiology, 1974AbstractConduction velocity within the through‐conducting nerve net of the sea anemone Calamactis praelongus is altered as a result of the passage of one or more impulses. Facilitation of conduction velocity occurs when the second evoked impulse follows the first by less than 2 sec.
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Ultrastructural reconstruction of the endodermal nerve net of Hydra vulgaris
Current BiologyThe cnidarian Hydra vulgaris has a simple nervous system with as little as a few hundred neurons distributed in two nerve nets in the ectoderm and endoderm. Using this simple neural chassis, Hydra can paradoxically perform relatively sophisticated behaviors, such as somersaulting and feeding.
Shulin Zhang +14 more
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Neuronal connectomics: Hydra’s non-synaptic nerve net
Current BiologyThe cnidarian polyp Hydra vulgaris has a simple nervous system consisting of two separate nerve nets. A new volume electron microscopy study of the endodermal nerve net reveals connections formed by neural interdigitations, or 'handshakes', instead of synapses.
Alexandra, Kerbl, Gáspár, Jékely
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Large Artificial Nerve Net (LANNET)
IEEE Transactions on Military Electronics, 1963This report describes the implementation of a high speed self-organizing system based on the reinforcement principle. The self-organizing binary logical network is used as the primary component in the system. The learning system is a 1024 decision element netwolk with a general purpose program to enable the operator to simulate a large number of ...
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1978
A most important problem of brain physiology and embryology is the topic “can an apparently unorganized system of interconnected neurons develop of itself into a system of more orderly interconnected neurons?” The paper shows, by means of an example, that this can indeed occur and how.
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A most important problem of brain physiology and embryology is the topic “can an apparently unorganized system of interconnected neurons develop of itself into a system of more orderly interconnected neurons?” The paper shows, by means of an example, that this can indeed occur and how.
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