Results 301 to 310 of about 2,666,119 (358)

Development of the Electric Organ of Mormyridae

Nature, 1960
THE existence of striated myofibril structures persisting in the electroplaques of adult fish had led several authors1–3 to consider muscle as the tissue of origin of the electric organs of Mormyridae, but no data have been published to justify this assumption. Recently I have presented circumstantial evidence showing indirectly that the electric organ
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Electric Organs, Fishes

1988
Electric organs, found in six groups of fishes (Fig. 1), are structures specialized to generate electric fields in the animals’ external environment. In some the voltages are large enough to stun prey or repel predators. These, the strongly electric fishes, include the electric eel (Electrophorus electricus) from South America, the electric catfish ...
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Large-scale purification of the acetylcholine-receptor protein in its membrane-bound and detergent-extracted forms from Torpedo marmorata electric organ.

European Journal of Biochemistry, 1977
A method is described for the large-scale purification of membrane fragments very rich in acetylcholine (nicotinic) receptor from the electric organ of Torpedo marmorata.
A. Sobel, Michel Weber, J. Changeux
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ELECTRICAL CONDUCTANCE IN ORGANIC SOLIDS

1964
Abstract : The work is divided along three general lines: a) the study of transport of carriers injected into insulating (or poorly conducting) solids by an electron gun, b) electrical measurements on highly conducting ion-radical salts, and c) study of carrier transport in some amorphous systems. During this quarter, the work was centered on the first
null Oliver H., Jr LeBlanc, Charles M. Huggins   +2 more
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Energetics of the Electric Organ [PDF]

Nature, 1964
X. Aubert, R. D. Keynes
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The organization of industrial electrical maintenance

Journal of the Institution of Electrical Engineers - Part I: General, 1945
The paper contends that, to be efficient, industrial maintenance must be controlled through an organized system. From an analysis of the functions of a maintenance department, the paper derives the principles underlying good organization and illustrates some of these by examples.
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Electrical breakdown in organic liquids

Proceedings of the IEE - Part IIA: Insulating Materials, 1953
The dispersion in the measurements of the electric strength of pure hydrocarbon liquids using direct voltage is significantly reduced using a hydrogen thyratron by-passing circuit. The damage due to discharge, mainly produced on the anode, is much less, and many more measurements on a particular sample are possible.Experiments with n-hexane show that ...
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The Detection of Electric Fields from Electric Organs

1974
In the preceding chapter some aspects of the biological role of electroreception are discussed that depend on signals arising from other organisms and from inanimate sources. In the present chapter we consider the reception of signals from electric organs, both from the same individual and from others.
Theodore H. Bullock, Henning Scheich
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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: 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, 2017
R. Nagel, F. Kirschbaum, R. Tiedemann
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