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A Broad HCO <sup>+</sup> Absorption Line Associated with the Circumnuclear Torus of NGC 1052
Sawada-Satoh, Satoko,Byun, Do-Young,Lee, Sang-Sung,Oh, Se-Jin,Roh, Duk-Gyoo,Kameno, Seiji,Yeom, Jae-Hwan,Jung, Dong-Kyu,Oh, Chungsik,Kim, Hyo-Ryoung,Hwang, Ju-Yeon American Astronomical Society 2019 ASTROPHYSICAL JOURNAL LETTERS - Vol.872 No.2
POSITIONAL COINCIDENCE BETWEEN WATER MASERS AND A PLASMA TORUS IN NGC 1052
SAWADA-SATOH SATOKO,KAMENO SEIJI,SHIBATA KATSUNORI M.,INOUE MAKOTO The Korean Astronomical Society 2005 Journal of The Korean Astronomical Society Vol.38 No.2
We present results of the VLBA observation toward the radio continuum and water maser emissions in a nearby LINER galaxy NGC 1052. The jet structure observed in 2000 is similar to that in 1998, and the two jet structures in 1998 and 2000 support the sub-luminal motion with apparent velocity of 0.26c. Distribution of water maser spots are located ${\~}$0.05 pc shifted to southwest from the component which is supported to be the nucleus, and no rapid positional change of the water maser gas with respect to the central engine is seen from 1995 to 2000. The maser gas is positionally coincident with a plasma torus, and the position of the maser gas relative to the nucleus is stable from 1995 to 2000. The maser gas in NGC 1052 could be explained to be associated with the nuclear circumnuclear torus or disk like the situation found in the nucleus of NGC 4258.
Helicopter-Satellite Communication Experiment for Disaster Information Transmission
Fujino, Yoshiyuki,Satoh, Masaki,Miura, Amane,Minowa, Tadashi,Nagai, Seiji,Taira, Shinichi 통신위성우주산업연구회 2005 Joint Conference on Satellite Communications Vol.2005 No.-
We present the helicopter-satellite communication system that was successfully developed and demonstrated for the first time. Time diversity and blade-synchronized data transmission to avoid the shadowing due to rotor blades of the helicopter, satellite and polarization auto-tracking, semi-moving picture transmission and position fixing of the picture scene etc will be presented.
Laparoscopic Surgery for Advanced Gastric Cancer: Current Status and Future Perspectives
Uyama, Ichiro,Suda, Koichi,Satoh, Seiji The Korean Gastric Cancer Association 2013 Journal of gastric cancer Vol.13 No.1
Laparoscopic gastrectomy has been widely accepted especially in patients with early-stage gastric cancer. However, the safety and oncologic validity of laparoscopic gastrectomy for advanced gastric cancer are still being debated. Since the late 90s', we have been engaged in developing a stable and robust methodology of laparoscopic radical gastrectomy for advanced gastric cancer, and have established laparoscopic distinctive technique for suprapancreatic lymph node dissection, namely the outermost layer-oriented medial approach. In this article, We present the development history of this method, and current status and future perspectives of laparoscopic gastrectomy for advanced gastric cancer based on our experience and a review of the literature.
Laparoscopic Surgery for Advanced Gastric Cancer: Current Status and Future Perspectives
Ichiro Uyama,Koichi Suda,Seiji Satoh 대한위암학회 2013 Journal of gastric cancer Vol.13 No.1
Laparoscopic gastrectomy has been widely accepted especially in patients with early-stage gastric cancer. However, the safety and oncologic validity of laparoscopic gastrectomy for advanced gastric cancer are still being debated. Since the late 90s’, we have been engaged in developing a stable and robust methodology of laparoscopic radical gastrectomy for advanced gastric cancer, and have established laparoscopic distinctive technique for suprapancreatic lymph node dissection, namely the outermost layer-oriented medial approach. In this article, We present the development history of this method, and current status and future perspectives of laparoscopic gastrectomy for advanced gastric cancer based on our experience and a review of the literature.
Method for Evaluating Metabolic Functions of Drugs in Bioartificial Liver
류화원,Yueng Guen Park,Hiroo Iwata,Seiji Satoh,Takehiko Uesugi 한국생물공학회 2003 Biotechnology and Bioprocess Engineering Vol.8 No.5
Lidocaine and galactose loading tests were performed on a bioartificial liver (BAL), an extracorporeal medical device incorporating living hepatocytes in a cartridge without a transport barrier across the membranes. The concentration changes were analyzed using pharmacokinetic equations to evaluate the efficacy and limitation of the proposed method. Lidocaine and galactose were found to be suitable drugs for a quantitative evaluation of the BAL functions, as they did not interact with the plasma proteins or blood vessels, making their concentrations easy to determine. The drug concentration changes after drug loading were easily analyzed using pharmacokinetic equations, and the BAL functions quantitatively expressed by pharmacokinetic parameters, such as the clearance (CL) and galactose elimination capacity (GEC). In addition, these two drugs have already been used in clinical tests to evaluate human liver functions over long periods, and lidocaine CL values and GEC values reported for a normal human liver. Thus, a comparison of the CL and GEC values for the BAL and a natural liver revealed what proportion of normal liver functions could be replaced by the BAL.