Un tema ricorrente nello Zibaldone: la memoria.
Explore the source record for details and available documents.
History, Modern 1601-↗
Biomedical subjects
L Giulio
Publications and source records attributed to L Giulio.
Effect of urea on the early receptor potential.
Explore the source record for details and available documents.
Animals↗
Early receptor potential at sub-zero temperatures.
Explore the source record for details and available documents.
Animals↗
[Photochemical origin of the vitreo-positive component of the "early receptor potential" (R1)].
Explore the source record for details and available documents.
Animals↗
[Rate of production of the vitreo-positive component of the "early recepto potential" (R 1) with solutions containing cryoprotective compounds of various concentrations and environmental temperatures. I].
Explore the source record for details and available documents.
Animals↗
[Rate of production of the vitreo-positive component of the "early receptor potential" (R 1) with solutions containing cryoprotective compounds of various concentrations and enviromental temperatures. II].
Explore the source record for details and available documents.
Animals↗
'Test flash' interaction in the electroretinographic response of the compound eye.
Explore the source record for details and available documents.
Acetylcholine↗
[Mechanisms of sensory filtration in the relationships between individuals and in individual-environmental correlations].
Explore the source record for details and available documents.
Environment↗
[Early receptor potentials (ERP) of the frog retina studied with linearly polarized lamps].
Explore the source record for details and available documents.
Animals↗
[Effect of blocking of the SH-groups on the electroretinogram of the isolated compound eye of Calliphora].
Explore the source record for details and available documents.
Animals↗
[Importance of sulfhydryl groups for the formation of the illumination potential in the compound eye of diptera].
Explore the source record for details and available documents.
Animals↗
[The visual cycle of the compound eye of Calliphora erythrocephala Meigen].
Explore the source record for details and available documents.
Animals↗
[Giuseppe Borgatti].
Explore the source record for details and available documents.
History, 20th Century↗
Thermotropic phase transitions at retinal rod outer segments membrane level.
Thermotropic phase transitions (i.e. phase changes induced by heat) were studied at frog ROS membrane level, with the aid of birefringence (phase difference, T) determination. In both dark and light adapted states, an early phase transition was observed (transition temperature, Tt, from +42 divided by 46 degree C). Apparently this change in the physiological state of the membrane precedes the disorientation of the pigment molecules. Following a period of birefringence stabilization a further decrease in birefringence takes place (from +52 divided by 53 degrees C onwards). During the last part of this phase Rho molecules appear to be completely disoriented, as though in solution. The physical changes underlying the transition phenomena seem related to the unbleached and bleached conditions of the ROS; with rising temperatures, the Tt point does not differ significantly in both conditions.
Animals↗