Image rectification is the process of applying a pair of 2 dimensional projective transforms, or homographies, to a pair of images whose epipolar geometry is known so that epipolar lines in the original images map to horizontally aligned lines in the transformed images. We propose a novel technique for image rectification based on geometrically well defined criteria such that image distortion d...

Activation of several inwardly rectifying K channels (Kir) requires the presence of phosphatidylinositol 4,5bisphosphate (PtdIns(4,5)P2). The constitutively active Kir2.1 (IRK1) channels interact with PtdIns(4,5)P2 strongly, whereas the G-protein activated Kir3.1/3.4 channels (GIRK1/GIRK4), show only weak interactions with PtdIns(4,5)P2. We investigated whether these inwardly rectifying K chann...

Among all voltage-gated K+ channels from the model plant Arabidopsis thaliana, the weakly rectifying K+ channel (K(weak) channel) AKT2 displays unique gating properties. AKT2 is exceptionally regulated by phosphorylation: when nonphosphorylated AKT2 behaves as an inward-rectifying potassium channel; phosphorylation of AKT2 abolishes inward rectification by shifting its activation threshold far ...

PURPOSE To identify and partially characterize the ionic currents contributing to the whole-cell conductance of cultured human corneal epithelial cells. METHODS Epithelial cells were scraped from human donor corneas and cultured for use in patch-clamp experiments. Amphotericin B and the perforated-patch configuration were used to measure whole-cell currents in cells isolated from confluent mo...

Itazawa, Shun-Ichi, Tadashi Isa, and Seiji Ozawa. Inwardly taken from a set of four proteins; GluR1 (GluR-A), GluR2 rectifying and Ca-permeable AMPA-type glutamate receptor (GluR-B), GluR3 (GluR-C), and GluR4 (GluR-D). Exchannels in rat neocortical neurons. J. Neurophysiol. 78: 2592– pression studies have shown that functional properties of 2605, 1997. Current-voltage (I-V ) relations and Ca pe...

Background: Obesity is associated with chronic inflammation in obese subjects, which leads to an increase of inflammatory cytokines. This study aimed to evaluate the effect of different intensity circuit resistance training on levels of interleukin 1 beta and interleukin-10 in obese men. Methods: In a semi-experimental trial during May to August 2020, 44 obese men from Tehran city were selecte...

The density of potassium channels, including the inward rectifying current (IK1), the delayed rectifying current and the transient outward current have been reported to be decreased in cardiac hypertrophy. However, it is not known whether the effects of specific ionic channel blockers are altered in this setting. The effects of barium chloride, which inhibits IK1, of dofetilide, which inhibits ...

Abstract  In his paper a new current-controlled conveyor (CCCII) in CMOS technology is presented. It features, low supply voltage (±0.7), low power consumption, low circuit complexity, rail to rail operation and wide range parasitic resistance ( ). The circuit has been successfully employed in a multifunction biquad filter. Simulation results by HSPICE show high performance of the circuit and c...