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Yoichi Sato 한국경영커뮤니케이션학회 2022 Business Communication Research and Practice Vol.5 No.2
Objectives: English communication skills are becoming more important in the business context of Japan. To realize smooth communication, the use of clarification requests is considered facilitative. Many companies in Japan have introduced corporate in-house English training as a part of their English-speaking Human Resources development, and many focus on training in the use of clarification requests. However, not much has been understood about how the pragmatics are employed within the English-speaking discourse community by Japanese businesspeople. This study looks at how clarification requests are used by Japanese businesspeople and addresses how they can contribute to realizing effective communication in English-speaking business discourse in Japan. Methods: The researcher analyses data retrieved from stimulated role-play. The participants are requested to engage in collective decision-making in their corporate in-house English training. There were 24 participants involved in this study, and they were placed into four teams for cross-sectional comparison. The interaction of the participants was video recorded and later transcribed to allow for text-based discourse analysis. Results: Our data show that the use of clarification request strategies was observed in all teams. Participants used clarification requests for various kinds of discourse pragmatic functions. Conclusions: It was concluded that teaching clarification request strategies is beneficial for many Japanese businesspeople who wish to develop their English communication competence. However, the potential face-threatening aspect of the use of clarification requests by Japanese speakers of English has been overlooked. This aspect should be taken into consideration when designing/implementing corporate in-house English training in Japanese companies in the future.
Trajectory Guidance and Control for a Small UAV
Yoichi Sato,Takeshi Yamasaki,Hiroyuki Takano,Yoriaki Baba 한국항공우주학회 2006 International Journal of Aeronautical and Space Sc Vol.7 No.2
The objective of this paper is to present trajectory guidance and control system with a dynamic inversion for a small unmanned aerial vehicle (UAV). The UAV model is expressed by fixed-mass rigid-body six-degree-of-freedom equations of motion, which include the detailed aerodynamic coefficients, the engine model and the actuator models that have lags and limits. A trajectory is generated from the given waypoints using cubic spline functions of a flight distance. The commanded values of an angle of attack, a sideslip angle, a bank angle and a thrust, are calculated from guidance forces to trace the flight trajectory. To adapt various waypoint locations, a proportional navigation is combined with the guidance system. By the decision logic, appropriate guidance law is selected. The flight control system to achieve the commands is designed using a dynamic inversion approach. For a dynamic inversion controller we use the two-timescale assumption that separates the fast dynamics, involving the angular rates of the aircraft, from the slow dynamics, which include angle of attack, sideslip angle, and bank angle. Some numerical simulations are conducted to see the performance of the proposed guidance and control system.
Trajectory Guidance and Control for a Small UAV
Sato, Yoichi,Yamasaki, Takeshi,Takano, Hiroyuki,Baba, Yoriaki The Korean Society for Aeronautical and Space Scie 2006 International Journal of Aeronautical and Space Sc Vol.7 No.2
The objective of this paper is to present trajectory guidance and control system with a dynamic inversion for a small unmanned aerial vehicle (UAV). The UAV model is expressed by fixed-mass rigid-body six-degree-of-freedom equations of motion, which include the detailed aerodynamic coefficients, the engine model and the actuator models that have lags and limits. A trajectory is generated from the given waypoints using cubic spline functions of a flight distance. The commanded values of an angle of attack, a sideslip angle, a bank angle and a thrust, are calculated from guidance forces to trace the flight trajectory. To adapt various waypoint locations, a proportional navigation is combined with the guidance system. By the decision logic, appropriate guidance law is selected. The flight control system to achieve the commands is designed using a dynamic inversion approach. For a dynamic inversion controller we use the two-timescale assumption that separates the fast dynamics, involving the angular rates of the aircraft, from the slow dynamics, which include angle of attack, sideslip angle, and bank angle. Some numerical simulations are conducted to see the performance of the proposed guidance and control system.
( Toshiyuki Sato ),( Tetsuya Takagawa ),( Yoichi Kakuta ),( Akihiro Nishio ),( Mikio Kawai ),( Koji Kamikozuru ),( Yoko Yokoyama ),( Yuko Kita ),( Takako Miyazaki ),( Masaki Iimuro ),( Nobuyuki Hida ) 대한장연구학회 2017 Intestinal Research Vol.15 No.3
Background/Aims: Recent genome-wide analyses have provided strong evidence concerning adverse events caused by thiopurine drugs such as azathioprine (AZA) and 6-mercaptopurine. The strong associations identified between NUDT15 p.Arg139Cys and thiopurine-induced leukopenia and severe hair loss have been studied and confirmed over the last 2 years. However, other coding variants, including NUDT15 p.Val18_Val19insGlyVal, NUDT15 p.Val18Ile, and FTO p.Ala134Thr, and a noncoding variation in RUNX1 (rs2834826) remain to be examined in detail in this respect. Therefore, we investigated the correlation between these adverse events and the 5 recently identified variants mentioned above among Japanese patients with inflammatory bowel diseases (IBD). Methods: One hundred sixty thiopurine-treated patients with IBD were enrolled. Genotyping was performed using TaqMan SNP Genotyping Assays or Sanger sequencing. Results: None of the 5 variants were associated with gastrointestinal intolerance to AZA. However, NUDT15 p.Arg139Cys was significantly associated with the interval between initiation and discontinuation of AZA among patients with gastrointestinal intolerance. This variant was strongly associated with early (<8 weeks) and late (≥8 weeks) leukopenia and severe hair loss. Moreover, it correlated with the interval between initiation of thiopurine therapy and leukopenia occurrence, and average thiopurine dose. NUDT15 p.Val18_Val19insGlyVal, NUDT15 p.Val18Ile, FTO p.Ala134Thr, and RUNX1 rs2834826 exhibited no significant relationship with the adverse events examined. Conclusions: Of the 5 variants investigated, NUDT15 p.Arg139Cys had the strongest impact on thiopurineinduced leukopenia and severe hair loss; therefore, its genotyping should be prioritized over that of other variants in efforts to predict these adverse events in Japanese patients with IBD. (Intest Res 2017;15:328-337)
Yamada, Yoichi,Kuklin, Artem V.,Sato, Sho,Esaka, Fumitaka,Sumi, Naoto,Zhang, Chunyang,Sasaki, Masahiro,Kwon, Eunsung,Kasama, Yukihiko,Avramov, Pavel V.,Sakai, Seiji Elsevier 2018 Carbon Vol.133 No.-
<P><B>Abstract</B></P> <P>We report the scanning tunneling microscope (STM) observation of the Li<SUP>+</SUP> ion endohedral C<SUB>60</SUB> on Cu(111), prepared by means of evaporation of a high-purity Li<SUP>+</SUP>@C<SUB>60</SUB>[PF<SUB>6</SUB> <SUP>−</SUP>] salt. The electronic state of Li<SUP>+</SUP>@C<SUB>60</SUB> in the Li<SUP>+</SUP>@C<SUB>60</SUB>[PF<SUB>6</SUB> <SUP>−</SUP>] salt was also determined using photoemission and X-ray absorption spectroscopy, along with the density functional theory (DFT) calculations. In the salt, Li and PF<SUB>6</SUB> had nearly single positive and negative charge, respectively; thus the C<SUB>60</SUB> cage was practically neutral. The salt decomposed under ultra-high vacuum while heating at 400 °C. This allowed the selective deposition of Li<SUP>+</SUP>@C<SUB>60</SUB> on Cu(111). Although secondary-ion mass spectroscopy of the deposited Li<SUP>+</SUP>@C<SUB>60</SUB> film showed a decrease in the Li-content during evaporation, Li<SUP>+</SUP>@C<SUB>60</SUB> was successfully identified using STM. The DFT calculations of Li<SUP>+</SUP>@C<SUB>60</SUB> on Cu(111) suggested that the Li<SUP>+</SUP> ion was singly charged and the location of the Li<SUP>+</SUP> ion was displaced in an upward direction, which altered the local density of states in an upper section of C<SUB>60</SUB>, especially for LUMO+2. The calculated results were mostly in agreement with the bias-dependent STM and dI/dV images. However, an inconsistency was observed between the calculation and experiments in case of empty state imaging where tip-induced displacement of the Li<SUP>+</SUP> ion may occur.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Hidetomo Saito,Kimio Saito,Yoichi Shimada,Toshiaki Yamamura,Shin Yamada,Takahiro Sato,Koji Nozaka,Hiroaki Kijima,Naohisa Miyakoshi 대한슬관절학회 2018 대한슬관절학회지 Vol.30 No.4
Purpose: High tibial valgus osteotomy (HTO) is a wellestablished surgical procedure for patients with medial compartment osteoarthritis (OA) of the knee. The hybrid closedwedge HTO (CWHTO) procedure permits extensive correction in patients with severe deformities or patellofemoral joint OA. The aim of this study was to report the shortterm results in a consecutive series of patients treated with hybrid CWHTO.Materials and Methods: We retrospectively evaluated the clinical outcomes and radiographic parameters in 29 consecutive knees that underwent hybrid CWTHO to correct medial compartment OA at an average followup of 52.6 months. Clinical outcomes were assessed using the Lysholm score and knee scoring system of the Japanese Orthopedic Association (JOA). The KellgrenLawrence grading system and pre and postoperative mechanical axis (MA), femorotibial angle (FTA), posterior tibial slope, and patella height were assessed.Results: The FTA and MA significantly changed from 180.7° to 170.4° and from 22.0° to 60.2°, respectively. No significant differences were observed between the mean pre and postoperative posterior tibial slope, InsallSalvati ratio, or CatonDeschamps index. The postoperative JOA and Lysholm scores significantly improved from 76.7 to 95.8 and from 58.8 to 90.2, respectively. Conclusions: Satisfactory outcomes can be achieved with hybrid CWHTO in patients with medial OA.
Inada, Hiromi,Hirayama, Yoichi,Tamura, Keiji,Terauchi, Daisuke,Namekawa, Ryoji,Shichiji, Takeharu,Sato, Takahiro,Suzuki, Yuya,Ohtsu, Yoshihiro,Watanabe, Keitaro,Konno, Mitsuru,Tanaka, Hiroyuki,Saito, Korean Society of Microscopy 2015 Applied microscopy Vol.45 No.1
We have developed a new HD-2700 (Hitachi High-Technologies Corp., Japan) scanning transmission electron microscope (STEM) that includes an automatic aberration correction function, and a large-solid-angle energy-dispersive X-ray spectroscopy detector that enables high-resolution and sensitive analysis. For observation with atomic resolution, using spherical-aberration-corrected STEM, in order that satisfactory performance of the device can be achieved readily, and within a short time, irrespective of the operator's skill level, a spherical-aberration-correction device with an automatic aberration-correction function was developed. This automatic aberration-correction function carries out the entire correction-related process (aberration measurement, selection and correction) automatically, with automatic selection of the aberrations that require correction, and automatic measurement of the appropriate corrections.
Mikio Mikami,Masae Ikeda,Hidetaka Sato,Haruko Iwase,Takayuki Enomoto,Yoichi Kobayashi,Hidetaka Katabuchi 대한부인종양학회 2018 Journal of Gynecologic Oncology Vol.29 No.4
OBJECTIVE: To evaluate the clinical efficiency of identifying patients with suspicious severe lesions by conization among prediagnosed cervical intraepithelial neoplasia (CIN) 1 and 2 patients in Japan. METHODS: The data in a Japanese nation-wide registry for cervical cancer (2009 and 2011) was collected to analyze the clinical efficacy of pre- and postdiagnosis for 13,215 Japanese women who underwent treatment by conization. Their preoperative and postoperative histologic findings and clinical outcomes were evaluated using standard statistical procedures including clinical and demographic characteristics. RESULTS: Almost half of 1,536 women who were treated by conization after the prediagnosis of CIN1 and 2 because the lesions showed no evidence of natural regression actually contained CIN1-2 (45.0%), CIN3 (47%), or invasive cancer (2.7%) in their cervical tissue. They underwent conization either for therapeutic (treatment) (78.5%) or diagnostic (21.5%) reasons. Invasive disease was diagnosed postoperatively more often in diagnostic cases (6.1%) than in therapeutic cases (2.8%). All the patients survived their diagnostic and therapeutic conization after approximately 30 months of follow up. CONCLUSION: Our study shows that the continuous observation of the prediagnosed CIN1 and 2 cases by the combination of cytology, colposcopy and histology in Japan has worked successfully to identify severe lesions by using conization as well in the process.