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At least 541 records · Page 30Linked to original sources
PubMed2006

Accurate relativistic adapted Gaussian basis sets for Cesium through Radon without variational prolapse and to be used with both uniform sphere and Gaussian nucleus models.

Accurate relativistic adapted Gaussian basis sets (RAGBSs) from Cs (Z = 55) through Rn (Z = 86) without variational prolapse were developed by using the polynomial version of the Generator Coordinate Dirac-Fock method. The RAGBSs presented here can be used with any of two popular finite nucleus models, the uniform sphere and the Gaussian models. The largest RAGBS error is 4.5 mHartree for Radon with a size of 30s27p17d11f.

Cesium↗
PubMed2001

Cesium-133: a potential reporter of the hepatic uptake of contrast agents.

NMR spectroscopy of intracellularly located (133)Cs has been used to monitor the uptake of Gd-EOB-DTPA by the isolated rat liver. As shown by (31)P spectroscopy, accumulation of (133)Cs ions in hepatocytes does not produce detectable effects on the metabolism. The hepatic internalization of Gd-EOB-DTPA was followed by the paramagnetic relaxation enhancement of the intracellular (133)Cs ions, and confirmed by parallel quantitations of Gd and Cs run by inductively coupled plasma (ICP) analysis of liver samples and aliquots of perfusate. The relaxation data significantly underestimate the Gd content, suggesting a potential compartmentation of Cs(+) and/or the contrast agent. Magn Reson Med 45:711-715, 2001.

Animals↗
PubMed1987

Acetylcholine dose-response relation and the effect of cesium ions in the rat adrenal chromaffin cell under voltage clamp.

Acetylcholine(ACh)-induced inward current was examined in the rat adrenal chromaffin cell in culture. Cells were voltage clamped with one electrode using the giga-seal technique. The ACh dose-response relationship was determined by applying various concentrations of ACh with the "puffer" method. Although there were several technical difficulties, we found tentative figures as 135 to 480 microM for the dissociation constant and 1.2 to 1.4 for the Hill coefficient. External Cs ions had a depressing effect on the ACh response. Cs ions may slowly block ACh receptor channels from outside at the resting state. The ACh response in normal saline recorded with the Cs-filled electrode reversed the polarity at -7.1 mV. When the amplitude of ACh-induced current was plotted against holding membrane potential the curve showed strong rectification at the region more negative than the reversal potential. Between +10 and +30 mV there was a region of a negative slope. We discussed possible mechanisms for this characteristic I-V curve.

Acetylcholine↗