Results 1 to 10 of about 204,651 (234)
A new look at the architecture and dynamics of the Hydra nerve net [PDF]
eLife, 2023 The Hydra nervous system is the paradigm of a “simple nerve net”. Nerve cells in Hydra , as in many cnidarian polyps, are organized in a nerve net extending throughout the body column. This nerve net is required for control of spontaneous behavior: elimination of nerve cells leads to polyps that do not move and are incapable of capturing and ...
Christina Busse +12 more
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Hydra: Imaging Nerve Nets in Action [PDF]
Current Biology, 2017 Mapping whole-brain activity during behavior represents one of the biggest and most exciting challenges of systems neuroscience. New research has taken advantage of the unique biology of an ancient organism to bring us a step closer to that goal.
Ji, Ni, Flavell, Steven Willem
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A theory of bundles over posets [PDF]
, 2007 In algebraic quantum field theory the spacetime manifold is replaced by a suitable base for its topology ordered under inclusion. We explain how certain topological invariants of the manifold can be computed in terms of the base poset.
Ezio Vasselli +13 more
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Neurotoxicity induced by mephedrone: an up-to-date review [PDF]
, 2017 BACKGROUND: Mephedrone is a β-ketoamphetamine belonging to the family of synthetic cathinones, an emerging class of designer drugs known for their hallucinogenic and psychostimulant properties as well as for their abuse potential.
Busardo', FRANCESCO PAOLO +6 more
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The Nerve Net of the Actinozoa [PDF]
Journal of Experimental Biology, 1935 ABSTRACTStimulation of the column of the anemone Calliatis parasitica elicits a graded series of responses. Each response is primarily due to the action of a single set of muscles. The means by which this effect is produced is physiologically simple.
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Multi-dataset Training for Medical Image Segmentation as a Service [PDF]
, 2019 Deep Learning tools are widely used for medical image segmentation. The results produced by these techniques depend to a great extent on the data sets used to train the used network.
Civit Balcells, Antón +6 more
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Sparse Nerves in Practice [PDF]
, 2019 Topological data analysis combines machine learning with methods from algebraic topology. Persistent homology, a method to characterize topological features occurring in data at multiple scales is of particular interest.
Aruni Choudhary +7 more
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Journal of the American Medical Association, 1920 From biologic studies it must be inferred that the sole reason for life—vegetable, animal and human— is to continue the species, and that man's superior brain and body are for the purpose of better protecting the germ plasm as well as for social life, the pleasure of work and the joy of mental effort. We worship the mind and its products, and outwardly
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Maintenance and Regeneration of the Nerve Net in Hydra [PDF]
American Zoologist, 1988 Description des proprietes et de la dynamique du reseau nerveux. On observe comment ces proprietes sont impliquees dans la maintenance du reseau nerveux dans le contexte de la dynamique du tissu chez l'adulte ainsi que pendant le developpement du reseau nerveux au moment de la regeneration de la ...
C. L. LlTTLEFIELD +4 more
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The Nerve Net of the Actinozoa [PDF]
Journal of Experimental Biology, 1937 ABSTRACT An account is given of the responses of Metridium senile to mechanical stimulation. The responses resemble those described by Parker in M. marginatum. The chief protective response is due to contraction of the longitudinal mesenteric muscles and not to contraction of the sphincter as in Calliactis.
C. F. A. Pantin, D. M. Hall
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