Daniel Tranchina

TL;DR: Previous PDF methods for synapses with realistic kinetics are extended; synaptic current injection for inhibition is replaced with more realistic conductance modulation.

TL;DR: The methods presented can be used to develop specific physical models for light adaptation based on the chemical kinetics of phototransduction or on nonlinear neural feedback, and the relevance of the nonlinear models and construction techniques to modeling phototranduction is discussed.

TL;DR: The proposed ephaptic mechanism for HC feedback regulation of photoreceptor Ca2+ channels is eliminated and earlier proposals that synaptic cleft pH changes are more likely responsible are supported.

TL;DR: It is shown that gene expression in rice responds differently to changes in the absolute amount of nitrogen available compared to nitrogen concentration and expression profiles associated with crop performance in arid, low-nutrient soils are identified.

TL;DR: An active membrane model that included a subthreshold A-type K+ current and/or a hyperpolarization-activated cation current (H-current) then was used to model cell behavior and the voltage traces calculated using this model were better able to reproduce the experimental data, and the cable parameters determined using this methodology were more consistent with those reported for other cells.