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Masafumi Ito,Takayuki Ohta,Masaru Hori 한국물리학회 2012 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.60 No.6
Recently, many kinds of non-equilibrium atmospheric-pressure plasma sources have been developed for medical and agricultural applications. Some sources have been applied to agricultural crops and foods for the inactivation of microorganisms and the acceleration of seed germination and crop growth. In this article, the applications of plasmas to disinfection of agricultural crops and foods are reviewed. Then, a high-density non-equilibrium atmospheric pressure plasma (NEAPP) applied for inactivating fungal spores of Penicillium digitatum, a difficult-to-inactivate food spoilage microorganism, is introduced as an environmentally safe and rapid inactivation method. The NEAPP employing Ar gas has a high electron density on the order of 1015 cm−3. The spores were successfully inactivated with a decimal reduction time in spores (D value) of 1.7 min. The contributions of ozone and UV radiation to the inactivation of the spores were evaluated and concluded not to be dominant. Therefore, the significance of neutral reactive species is suggested in the rapid inactivation using NEAPP.
Renma Ito,Yusuke Hashimoto,Masafumi Ikeda 소화기인터벤션의학회 2019 International journal of gastrointestinal interven Vol.8 No.3
Endoscopic ultrasound-guided hepaticoesophagostomy (EUS-HES) refers to EUS-guided biliary access from the abdominal part of the esophagus, an uncommon choice of route for biliary drainage. In the patient reported herein, an esophageal laceration and leakage at the site of placement of a metal stent occurred a few days after EUS-HES. To plug the laceration, 0.5 mL of n-butyl-2 cyanoacrylate mixed with 1 mL of lipiodol was injected through an endoscopic retrograde cholangiopancreatography catheter. We performed EUS-guided transgastric drainage for drainage of the peritoneal fluid collection. The procedures were successful and the laceration eventually healed, with no further leakage.
Renma Ito,Yusuke Hashimoto,Masafumi Ikeda 소화기인터벤션의학회 2019 Gastrointestinal Intervention Vol.8 No.3
Endoscopic ultrasound-guided hepaticoesophagostomy (EUS-HES) refers to EUS-guided biliary access from the abdominal part of the esophagus, an uncommon choice of route for biliary drainage. In the patient reported herein, an esophageal laceration and leakage at the site of placement of a metal stent occurred a few days after EUS-HES. To plug the laceration, 0.5 mL of n-butyl-2 cyanoacrylate mixed with 1 mL of lipiodol was injected through an endoscopic retrograde cholangiopancreatography catheter. We performed EUS-guided transgastric drainage for drainage of the peritoneal fluid collection. The procedures were successful and the laceration eventually healed, with no further leakage.
LMI-based Robust Command Shaping Against Plant Perturbations in Fast and Precise Positioning
Kazuaki Ito,Masafumi Yamamoto,Makoto Iwasaki,Nobuyuki Matsui 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
This paper presents a novel position command shaping approach for the mechanical vibration suppression in mechatronic systems. Although conventional command shaping approaches can suppress the specified mechanical vibrations, mechanical and/or electrical perturbations in plant may deteriorate the motion performance. In this research, a Linear Matrix Inequality (LMI) design framework is applied to eliminate the deterioration in positioning, where a robust command shaping against the plant perturbations can be directly achieved under the constraint of state variables in system. The effectiveness of the proposed shaping has been verified by numerical simulations and experiments using a prototype.
( Tamiko Saito ),( Masafumi Naito ),( Yuki Matsumura ),( Hisaaki Kita ),( Tomoyo Kanno ),( Yuki Nakada ),( Mina Hamano ),( Miho Chiba ),( Kosaku Maeda ),( Tomoki Michida ),( Toshifumi Ito ) The Editorial Office of Gut and Liver 2014 Gut and Liver Vol.8 No.5
A 75-year-old Japanese man with chronic hepatitis C was found to have a large liver tumor and multiple nodules in the bilateral lungs. We diagnosed the tumor as hepatocellular carcinoma (HCC) with multiple lung metastases based on imaging studies and high titers of HCC tumor markers. Remarkably, without any anticancer treatment or medication, including herbal preparations, the liver tumor decreased in size, and the tumor makers diminished. Moreover, after 1 year, the multiple nodules in the bilateral lungs had disappeared. Fifteen months after the first medical examination, transcatheter arterial chemoembolization (TACE) was performed for the residual HCC. Because local relapse was observed on follow-up computed tomography, a second TACE was performed 13 months after the first one. At 4 years after the second TACE (7 years after the initial medical examination), there was no recurrence of primary or metastatic lesions. Spontaneous regression of HCC is very rare, and its mechanism remains unclear. Understanding the underlying mechanism of this rare phenomenon may offer some hope of finding new therapies, even in advanced metastatic cases. (Gut Liver 2014;8:569-574)
Satomi Seki,Naoko Kato,Naomi Ito,Koichiro Kinugawa,Minoru Ono,Noboru Motomura,Atsushi Yao,Masafumi Watanabe,Yasushi Imai,Norihiko Takeda,Masashi Inoue,Masaru Hatano,Keiko Kazuma 한국간호과학회 2010 Asian Nursing Research Vol.4 No.2
Purpose The aim of this study was to evaluate the validity and reliability of the Seattle Angina Questionnaire, Japanese version (SAQ-J) as a disease-specific health outcome scale in patients with coronary artery disease. Methods Patients with coronary artery disease were recruited from a university hospital in Tokyo. The patients completed self-administered questionnaires, and medical information was obtained from the subjects’medical records. Face validity, concurrent validity evaluated using Short Form 36 (SF-36), known group differences, internal consistency, and test-retest reliability were statistically analyzed. Results A total of 354 patients gave informed consent, and 331 of them responded (93.5%). The concurrent validity was mostly supported by the pattern of association between SAQ-J and SF-36. The patients without chest symptoms showed significantly higher SAQ-J scores than did the patients with chest symptoms in 4 domains. Cronbach’s alpha ranged from .51 to .96, meaning that internal consistency was confirmed to a certain extent. The intraclass correlation coefficient of most domains was higher than the recommended value of 0.70. The weighted kappa ranged from .24 to .57, and it was greater than .4 for 14 of the 19 items. Conclusions The SAQ-J could be a valid and reliable disease-specific scale in some part for measuring health outcomes in patients with coronary artery disease, and requires cautious use. [Asian Nursing Research 2010;4(2):57–63]