10 Result(s)
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Article
M. Järvilehto
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Article
Effects of low-intensity training on dihydropyridine and ryanodine receptor content in skeletal muscle of mouse
To evaluate low-intensity exercise training induced changes in the expression of dihydropyridine (DHP) and ryanodine (Ry) receptors both mRNA and protein levels were determined by quantitative RT-PCR and immun...
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Expression of L-type calcium channels associated with postnatal development of skeletal muscle function in mouse
Several factors have an influence on the improvement of muscle activity and motor co-ordination of mammals during post-natal development. One of them is voltage sensitive L-type calcium channel function. In st...
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Tuning of photoreceptor spectral sensitivity in fireflies (Coleoptera: Lampyridae)
Sexual communication between male and female fireflies involves the visual detection of species-specific bioluminescent signals. Firefly species vary spectrally in both their emitted light and in the sensitiv...
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Ultraviolet Colours in Pieris napi from Northern and Southern Finland: Arctic Females Are the Brightest!
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Membrane maintenance and electrical properties of photoreceptors of wild-type andrpa (receptor potential absent) mutant blowflies (Calliphora erythrocephala)
The maintenance of photoreceptor cell membranes in the blowfly was investigated in relation to the diurnal cycle, age, and therpa (receptor potential absent) phototransduction mutation. The effect of disturbed me...
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Morphological and functional characteristics of arpa (receptor potential absent) visual mutant of the blowfly (Calliphora erythrocephala)
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We have discovered a previously unreported visual mutant of the blowfly,Calliphora erythrocephala. It shows a...
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Fly photoreceptors and temperature: Relative UV-sensitivity is increased by cooling
Intracellular responses from blowfly photoreceptor cells were recorded at various temperatures in order to study the behaviour of the transduction system, with particular reference to spectral sensitivity. wit...
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The transmission of information by first and second order neurons in the fly visual system
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Random (white noise) fluctuations of both point and wide field light sources were presented to eyes of the fl...
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Electrophysiological-histological studies on some functional properties of visual cells and second order neurons of an insect retina
Intracellular potential recording in combination with a histological technique of cell identification and localization of the recording site was used to get some results about information processing properties...
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Direkte Beobachtung der Rhabdomere bei Calliphora erythrocephala (Meig.)
If the living eye of Calliphora erythrocephala is illuminated “antidromically” (from behind) and viewed through a microscope of medium aperture, the rhabdomeres of each ommatidium within a large area can be seen ...
