Results 231 to 240 of about 7,827 (274)

Researches on the Electric Discharge of the Isolated Electric Organ of Astrape (Japanese Electric Ray) by Means of an Oscillograph

Proceedings of the Tokyo Mathematico-Physical Society. 2nd Series, 1914
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DNA Transformation Driven by Electric Organ Discharge from Electric Eel

Seibutsu Butsuri
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Electrolocation with an electric organ discharge waveform for biomimetic application

Adaptive Behavior, 2011
Weakly electric fish use electric organ discharge (EOD) and their electroreceptors to identify prey, explore their surroundings, and communicate with other members of the same species. They are specialized in active electrolocation using a self-generated electric field, and they can sense distortion of their self-generated electric field caused by a ...
Miyoung Sim, DaeEun Kim
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Androgens Alter Electric Organ Discharge Pulse Duration despite Stability in Electric Organ Discharge Frequency

Hormones and Behavior, 2001
Weakly electric fish in the genus Sternopygus emit a sinusoidal, individually distinct, and sexually dimorphic electric organ discharge (EOD) that is used in electrolocation and communication. Systemically applied androgens decrease EOD frequency, which is set by a medullary pacemaker nucleus, and increase pulse duration, which is determined by the ...
Harold H Zakon
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Ontogeny of the electric organ discharge and the electric organ in the weakly electric pulse fish Brachyhypopomus pinnicaudatus (Hypopomidae, Gymnotiformes)

Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology, 1997
I recorded the electric organ discharges (EODs) of 331 immature Brachyhypopomus pinnicaudatus 6-88 mm long. Larvae produced head-positive pulses 1.3 ms long at 7 mm (6 days) and added a second, small head-negative phase at 12 mm. Both phases shortened duration and increased amplitude during growth.
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Electric organ discharge diversification in mormyrid weakly electric fish is associated with differential expression of voltage-gated ion channel genes

Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology, 2017
In mormyrid weakly electric fish, the electric organ discharge (EOD) is used for species recognition, orientation and prey localization. Produced in the muscle-derived adult electric organ, the EOD exhibits a wide diversity across species in both ...
Rebecca Nagel, Frank Kirschbaum
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Electrical Discharges in Polar Organic Liquids

Plasma Processes and Polymers, 2009
AbstractElectrical discharges in water for pollutant degradation have been studied intensively, but there are almost no studies on electrical discharges in organic solvents. In this study, three separate experiments are conducted in relatively polar organic solvents: diamond‐like carbon (DLC) film synthesis, ammonia production, and hydrogen generation ...
Selma Mededovic Thagard, Kazunori Takashima, Akira Mizuno   +2 more
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Patterns of the electric organ discharge during courtship and spawning in the mormyrid fish, Pollimyrus isidori [PDF]

Behavioral Ecology and Sociobiology, 1989
Pollimyrus isidori's electric organ discharge (EOD) is of the pulse type. Patterns of EOD intervals were investigated prior to, during and following spawning behaviors as related with overt behaviors, and with the sound production by the nestbuilding ...
Kramer B
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Ontogeny of the electric organ discharge in two parapatric species of the dwarf stonebasher, Pollimyrus castelnaui and P. marianne (Mormyridae, Teleostei) [PDF]

Acta Zoologica, 2006
This is the first description of the ontogenetic development of the electric organ discharge (EOD) in two parapatric mormyrid sibling species, Pollimyrus castelnaui (Boulenger, 1911) and P. marianne Kramer et al.
Kramer, Bernd, Baier, Bernd, Lamml, Michael   +2 more
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Effect of electric organ discharge on ampullary receptors in a mormyrid

Brain Research, 1978
(1) Afferents from ampullary receptors were shown to be strongly affected by the electric organ discharge (EOD) in the mormyrid Gnathonemus petersii. (2) Over a broad range of resistivities (4-60 komegacm) the response to the EOD was similar to the response to a brief (50-200 microsec) outside positive pulse, i.e.
C C, Bell, C J, Russell
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