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Showing papers by "Yoshiyuki Okamoto published in 2002"


Journal ArticleDOI
TL;DR: The results suggest that cellular redox status is a determinant of pulmonary arterial endothelial cell TPMET activity, with T PMET activity more highly correlated with the poise of the NADH/NAD(+) redox pair.
Abstract: Pulmonary arterial endothelial cells possess transplasma membrane electron transport (TPMET) systems that transfer intracellular reducing equivalents to extracellular electron acceptors. As one asp...

65 citations


Proceedings ArticleDOI
01 Jan 2002
TL;DR: In this article, the absorption spectra of lanthanideions in perfluorinated (PF) plastic solution were measured, and the radiative properties were determined by the absorption measurements and the Judd-Ofelt theory.
Abstract: Absorption spectra of lanthanideions in perfluorinated (PF) plastic solution were measured, and the radiative properties were determined by the absorption measurements and the Judd- Ofelt theory. Fluorescence spectrum of Nd3+ in PF plastic solution from 900 nm to 1350 nm, pumped at 580 nm, were measured for the first time. Lasing properties of a rhodamine 6G-doped graded-index plastic optical fiber laser (GI-POFL) and a rod laser were investigated. All measurements demonstrated the superior performance of the GI-POFL. This paper also discusses the lasing properties on the basis of near-field pattern measurements.© (2002) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.