Roles of the Drosophila SK Channel (dSK) in Courtship Memory

A role for SK channels in synaptic plasticity has been very well-characterized. However, in the absence of simple genetic animal models, their role in behavioral memory remains elusive. Here, we take advantage of Drosophila melanogaster with its single SK gene (dSK) and well-established courtship memory assay to investigate the contribution of this channel to memory. Using two independent dSK alleles, a null mutation and a dominant negative subunit, we show that while dSK negatively regulates the acquisition of short-term memory 30 min after a short training session, it is required for normal long-term memory 24 h after extended training. These findings highlight important functions for dSK in courtship memory and suggest that SK channels can mediate multiple forms of behavioral plasticity

Generation of the impedance grid for moving medium

The lumped elements equivalent circuit of space primitive object which allow forming impedance grids for 2D electrodynamics analysis system inclusive moving with relativistic velocity medium is proposed. The lumped elements equivalent circuit of space primitive object which contain moving dielectric and based on law of conservation of electric charge and Lorentz transform is make up. The lumped elements equivalent circuit of space primitive object which contain moving magnetic is composed by method of interchangeable ambivalence. The equivalent circuit of space primitive object which contain moving medium with given permittivity and permeability is constructed and based on Minkovskiy’s constitutive equations. Conservatism of obtained circuits is proved