Results 231 to 240 of about 2,047,095 (269)

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
exaly   +2 more sources

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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
openaire   +1 more source

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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Electric organ discharges of the gymnotiform fishes: III. Brachyhypopomus

Journal of Comparative Physiology A: Sensory, Neural, and Behavioral Physiology, 1999
We measured and mapped the electric fields produced by three species of neotropical electric fish of the genus Brachyhypopomus (Gymnotiformes, Rham phichthyoidea, Hypopomidae), formerly Hypopomus. These species produce biphasic pulsed discharges from myogenic electric organs. Spatio-temporal false-color maps of the electric organ discharges measured on
P K, Stoddard, B, Rasnow, C, Assad
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Classical Conditioning of Electric Organ Discharge Rate in Mormyrids

Science, 1965
Weakly electric fish of the African family Mormyridae emit pulses at variable intervals with a distribution skewed toward longer intervals. Fourteen specimens of the genera Mormyrops , Gnathonemus , and Marcusenius were classically conditioned to increase briefly their
F J, Mandriota, R L, Thompson, M V, Bennett   +2 more
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The electric organ discharges of the gymnotiform fishes: II. Eigenmannia

Journal of Comparative Physiology A: Sensory, Neural, and Behavioral Physiology, 1998
We present detailed measurements of the electric organ discharge of the weakly electric fish, Eigenmannia sp. These maps illuminate, with high resolution in both space and time, the electric organ discharge potential and electric field patterns in the water about the fish and on the skin surface itself.
C, Assad, B, Rasnow, P K, Stoddard, J M, Bower   +3 more
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Pathways of the electric organ discharge command and its corollary discharges in mormyrid fish

Journal of Comparative Neurology, 1983
AbstractThe motoneurons which innervate the mormyrid electric organ are driven by a descending volley from the medullary relay nucleus. This nucleus does not initiate the electric organ discharge (EOD) but is driven in an obligatory manner by another center, a command nucleus.
C C, Bell, S, Libouban, T, Szabo
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A temporal analysis of testosterone‐induced changes in electric organs and electric organ discharges of mormyrid fishes

Journal of Neurobiology, 1989
AbstractThe electric organ discharge (EOD) of several species of mormyrid fishes within the genus Brienomyrus is sexually dimorphic during the breeding season: the duration of the male's EOD is much longer than the duration of the female's (for a review see Hopkins, 1986).
E G, Freedman, J, Olyarchuk, M A, Marchaterre, A H, Bass   +3 more
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Synthesis of Organic Compounds by Electric Discharges

Nature, 1963
Prolonged electric spark discharges were applied to mixtures consisting essentially of methane, ammonia, water, and ethane in an investigation of the synthesis of organic compounds under possible primitive earth conditions. C/sup 14/-hydrocarbons, mainly C/sup 14/-methane, were used as tracers.
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Degradation of organic dyes in water by electrical discharges

Plasma Chemistry and Plasma Processing, 2007
The degradation of several organic compounds in aqueous solution: methyl yellow (C14H15N3), methyl red (C15H15N3O2), methyl orange (C14H14N3NaO3S), phenol red (C19H14O5S) and methylene blue (C16H18ClN3S), was investigated in a pulsed corona discharge. High voltage pulses of 17 kV amplitude, 24 ns rise time and approximately 200 ns duration (full width ...
Monica Magureanu, Nicolae Bogdan Mandache, Vasile I. Parvulescu   +2 more
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