Kazutaka Sakamoto

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BACKGROUND Osteonecrosis of the femoral head is a common complication of high-dose glucocorticoid treatment. Intravascular thrombosis is thought to be associated with the ischemic state of the femoral head. Plasminogen activator inhibitor-1 (PAI-1) is an adipokine, which are physiologically active substances secreted from visceral and subcutaneous(More)
In order to clarify the seizure susceptibility of Noda epileptic rat (NER) and the antiepileptic effects of levetiracetam (LEV), we performed electrical hippocampal kindling in NERs compared with Wistar rats (experiment 1), and hippocampal kindling in NERs with LEV administration (experiment 2). In experiment 1, electrical stimulation was administered to(More)
Japan Atomic Energy Agency as the JApan Domestic Agency (JADA) for ITER and the Domestic Agency of EU (EUDA) agreed the procurement sharing for the ITER NBI power supply system. The JADA contributes procurement of dc-1 MV ultra-high voltage (UHV) components such as a-1 MV dc generator, a transmission line and a-1 MV insulating transformer. The dc UHV(More)
Ramelteon is a novel hypnotic characterized by its action as a melatonin receptor (MT1/MT2) agonist. It has been reported that ramelteon can alter the phase of the sleep period. We report a patient with circadian rhythm sleep disorder and mood disorder who improved with ramelteon. A 25-year-old man had a 5-year history of emotional instability, excessive(More)
Recent progress in the R&D and the design work of plasma heating and current drive (H&CD) technologies for ITER are described. The H&CD systems are composed of 20 MW electron cyclotron (EC), 20 MW ion cyclotron (IC) and 33 MW negative ion based neutral beam (N-NB) systems, and design and R&D work continues for plasma commissioning. Significant progress in(More)
Combined use of photocatalyst and adsorbent for the removal of inorganic arsenic(III) and organoarsenic compounds from aqueous media Characterization of eluent by hot water extraction of coals in terms of total organic carbon and environmental impacts Fuel, 84, pp.783-789 20055 Production of lactic acid by continuous electrodialysis fermentation with a(More)
Major issues of NBI power supplies are a high-speed switching, regulation and transmission of dc ultra high voltage, and suppression of surge energy input to the beam source at breakdown. A GTO(gate turn off thyristor) inverter type power supply where the control is performed at low voltage ac side was designed for the ITER NB. Based on the remarkable(More)
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