Ryota Ogawa

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Metamaterials composed of periodically accumulated unit-cells have attracted a great deal of attention due to their extraordinary electromagnetic properties [1]-[9]. For example, the most ordinary material has all positive permittivity and permeability, but the material parameters of metamaterial can be negative with properly modifications of unit-cell(More)
The use of a polymer electrolyte fuel cell (PEFC) with a Nafion membrane for isotopic separation of deuterium (D) was investigated. Mass analysis at the cathode side indicated that D diffused through the membrane and participated in an isotope exchange reaction. The exchange of D with protium (H) in H₂O was facilitated by a Pt catalyst. The anodic data(More)
Existence of backward TE volume modes which are to be identified as Magnetostatic Wave (MSW) in anisotropic single-negative slab with partly negative permeability tensor component have already been revealed by present authors. In this paper, detailed modal analysis has been carried out for this kind of TE volume modes to find out their novel and peculiar(More)
Calcium-dependent transglutaminases (TGs) are a family of enzymes that catalyze protein cross-linking and/or attachment of primary amines in a variety of organisms. Mammalian TGs are implicated in multiple biological events such as skin formation, blood coagulation, and extracellular matrix stabilization. Medaka (Oryzias latipes) has been used as a model(More)
In the final process of blood coagulation, fibrin molecules are stabilized via a catalytic reaction by Factor XIIIA (FXIIIA), a member of the transglutaminase (TGase) family that catalyzes protein cross-linking reactions. In this study, we characterized the orthologue of this enzyme in medaka (Oryzias latipes), an established model fish in which a(More)
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