Perturbations of Spacetime around a Stationary Rotating Cosmic String

We consider the metric perturbations around a stationary rotating Nambu-Goto string in Minkowski spacetime. By solving the linearized Einstein equations, we study the effects of azimuthal frame-dragging around the rotation axis and linear frame-dragging along the rotation axis, the Newtonian logarithmic potential, and the angular deficit around the string as the potential mode. We also investigate gravitational waves propagating off the string and propagating along the string, and show that the stationary rotating string emits gravitational waves toward the directions specified by discrete angles from the rotation axis. Waveforms, polarizations, and amplitudes which depend on the direction are shown explicitly.Comment: 30 pages, 6 figures; Minor corrections, references added, published version in Physical Review

Complication after Embolization of Internal Iliac Artery by Gelatin Sponge Powder

A case is reported of muscular atrophy of the buttock and advanced and permanent neuropathy following embolization of the internal iliac artery by gelatin sponge powder. We discuss and review the risk of complications by embolic material and the method of embolization

PD-L1 overexpression in EBV-positive gastric cancer is caused by unique genomic or epigenomic mechanisms

博士（医学）福島県立医科大

EFFECT OF 12-O-TETRADECANOYLPHORBOL 13-ACETATE ON DNA SYNTHESIS IN PROLIFERATING RAT HEPATOCYTES IN PRIMARY CULTURE

DNA synthesis in primary culture of rat hepatocytes was initiated over 16h after the beginning of culture and reached a peak between 32h and 40h under the conditions of this study. The addition of 12-O-tetradecanoylphorbol 13-acetate (TPA) (100 ng/ml) during the initial 24h of culture inhibited DNA synthesis, while addition between 16h or 20h and 24h stimulated DNA synthesis. Chelator-extractable and calcium-dependent protein kinase activity in the soluble fraction of hepatocytes with TPA addition during the initial 24h of culture was apparently reduced at 8, 12, 16 and 24h. It is suggested that TPA addition just prior to the initiation of DNA synthesis activates proten kinase C (PKC) and stimulates DNA synthesis, whereas TPA addition at an early stage of culture inhibits DNA synthesis, possibly because of PKC depletion

Belle実験における B→Ks eta gamma 崩壊の時間に依存した CP の破れの解析による新物理の探索

Tohoku University山本均課