Elemental Distribution in Multilayer Systems by Laser-Assisted Atom Probe Tomography with Various Analysis Directions.

Elemental distributions in a magnetic multilayer system with the structure Si substrate/Ta/NiFe/Ru/CoFeB/Ru/NiFe were studied using atom probe tomography (APT) along different analysis directions. The distributions of Ru and B atoms, which require a high evaporation field, were strongly influenced by the APT analysis direction. In particular, B in the CoFeB layer appeared near the interface with the lower Ru layer when the analysis was anti-parallel to the film growth direction, while B atoms were observed at the other side of the CoFeB layer when the analysis was parallel to the film growth direction.

An alpha-1-acid glycoprotein-like protein as a major component of the ovarian cavity fluid of viviparous fish, Neoditrema ransonnetii (Perciformes, Embiotocidae).

Developing fetuses of surfperch (Neoditrema ransonnetii, Perciformes; Embiotocidae) are retained in the ovarian cavity until birth, where they are surrounded by ovarian cavity fluid (OCF). Expecting the OCF to have key roles in maintaining pregnancy, we purified and characterized a major glycoprotein of 51 kDa in the OCF of surfperch. On the basis of the N-terminal amino acid sequence, we cloned and sequenced a full-length cDNA.