Results 31 to 40 of about 2,938,159 (326)
Acetylcholine in the Electric Organ of Torpedo [PDF]
Nature, 1965 Feldberg and Fessard1 have shown that the electric organ of Torpedo marmorata is activated by acetylcholine (ACh) and that it contains a substance like ACh, as determined by bioassay, equivalent to between 40 and 100 µg ACh/g tissue. It has been suggested recently2,3 that not all the material extracted from nervous tissue and bioassayed as ACh is in ...
D, Morris, G, Bull, C O, Hebb
openaire +2 more sources
Induced electric conductivity in organic polymer
Beilstein Journal of Nanotechnology, 2022 Polydiphenylenephthalide (PDP) belongs to the class of carbocyclic organic electroactive polymers, which exhibit electric conductive properties when an external electric field and/or mechanical stress is applied. In this work, the transport properties of thin-film layered lead–PDP–lead structures were experimentally studied in a wide temperature range.
Konstantin Yu Arutyunov +6 more
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Proceedings of the Royal Society of London, 2012 After referring to the observations of Stark, the discoverer of the skate’s electric organ, and to the work of Robin, Leydig, Babuchin, and others, the author describes the arrangement of the muscles in the tail of Selachians with a view to determining ...
J. C. Ewart
semanticscholar +1 more source
First record of Gymnotus henni (Albert, Crampton and Maldonado, 2003) in Panama: phylogenetic position and electric signal characterization [PDF]
Check List, 2013 We present the first record of the weakly electric fish Gymnotus henni in Panama, which also represents the first record of Gymnotus in the Pacific slope of the country. One specimen was collected in a tributary of the Chucunaque River in the Tuira basin.
Fernando Alda +6 more
doaj +3 more sources
A new and improved electric fish finder with resources for printed circuit board fabrication [PDF]
Neotropical Ichthyology, 2019 We describe the circuit design, construction, and operation of a field-portable electric fish finder (an AC-coupled wide-band differential bio-amplifier with loudspeaker output).
Michael A. Haag +3 more
doaj +1 more source
Global feather orientations changed by electric current
iScience, 2021 Summary: During chicken skin development, each feather bud exhibits its own polarity, but a population of buds organizes with a collective global orientation.
Ting-Xin Jiang +9 more
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XX. The electric organ of the skate.—The electric organ of raia radiata [PDF]
Philosophical Transactions of the Royal Society of London. (B.), 1888 Abstract The Structure of the Electric Organ of Raia radiata.—The development of the electric discs of Raia batis and the structure of the electric cups of Raia circularis having been already described, I shall now give an account of the organ of Raia radiata, partly by way of indicating in what respects it differs in structure from ...
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, 1991 Eigenmannia lineata is a tropical South American gymnotiform fish that is both electrogenic and electroreceptive. Its electric organ generates a constant-frequency wave discharge (EOD) that is sexually dimorphic in waveform and harmonic content ...
Kramer, Bernd +3 more
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Differentiation of courtship songs in parapatric sibling species of dwarf stonebashers from southern Africa (Mormyridae, Teleostei) [PDF]
, 2006 We describe the nocturnal courtship songs of male dwarf stonebashers, Pollimyrus castelnaui, from the Okavango River and its inland delta. We examined the question of whether the songs are sufficiently differentiated from those of its parapatric sibling ...
Kramer, Bernd, Lamml, Michael
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, 2008 The dwarf stonebasher sibling species Pollimyrus castelnaui and P. marianne use differences in the electric organ discharges (EODs) for species recognition.
Baier, Bernd, Bernd Baier
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