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대두 및 고구마 β-Amyiase 의 비교에 관한 연구
Mikami, Bunzo,Majima, Keiichi,Morita, Yuhei,김용휘,김준평 한국콩연구회 1988 韓國콩硏究會誌 Vol.5 No.1
대두 및 고구마로부터 얻은 β-amylase의 단백질 구조를 CD spectra, 항체반응, 화학적 절단을 통하여 비교하였다. 고구마 β-amylase는 4개의 동일한 subunit로 구성되어 있으며 대두 β-amylase는 subunit구조를 하고 있지 않았다. 또한 두 효소는 변성시킨 상태에서 SDS-gel전기영동, gel filtration한 결과 분자량은 동일하였다. 그리고 대두 및 고구마 β- amylase는 CD spectra 상 유사한 2차구조를 나타내고 있으나 방향족 측쇄가 상이함을 나타냈다. 한편 cyteine 잔기 및 mechionine 잔기의 화학적 절단한 결과 두 효소는 동일한 아미노산 배열을 나타냈다. 또한 면역학적인 방법에 의해서도 두 효소는 유사성이 인정되었다. 한편 대두 β-amylase에 대한 항체는 고구마 β-amylase의 활성을 억제 하였으나 밀, 보리, 무우 β-amylase에 대해서는 활성 억제가 나타나지 않았다.
Health Monitoring of High-rise Building with Fiber Optic Sensor (SOFO)
Mikami, Takao,Nishizawa, Takao Council on Tall Building and Urban Habitat Korea 2015 International journal of high-rise buildings Vol.4 No.1
Structural health monitoring is becoming more and more important in the domain of civil engineering as a proper mean to increase and maintain the safety, especially in the land of earthquakes like Japan. In many civil structures, the deformations are the most relevant parameter to be monitored. In this context, a monitoring technology based on the use of long-gage fiber optic deformation sensor, SOFO is being applied to a 33-floors tall building in Tokyo. Sensors were installed on the $2^{nd}$ floor's steel columns of the building on May 2005 in the early stage of the construction. The installed SOFO sensors were dynamic compatible ones which enable both static and dynamic measurements. The monitoring is to be performed during the whole lifespan of the building. During the construction, static deformations of the columns had been measured on a regular basis using a reading unit for static measurement and dynamic deformation measurements were occasionally conducted using a reading unit for dynamic measurement. The building was completed on August 2006. After the completion, static and dynamic deformation measurements have been continuing. This paper describes a health monitoring technology, SOFO system which is applicable to high-rise buildings and monitoring results of a 33-floors tall building in Tokyo from May 2005 to October 2010.
Role of lymphadenectomy for ovarian cancer
Mikio Mikami 대한부인종양학회 2014 Journal of Gynecologic Oncology Vol.25 No.4
Japan Society of Gynecologic Oncology (JSGO) recently revised its Ovarian Cancer Treatment Guidelines and the 4th edition will be released next year. This Guidelines state that lymphadenectomy is essential to allow accurate assessment of the clinical stage in early ovarian cancer, but there is no randomized controlled trial that shows any therapeutic efficacy of lymphadenectomy. In patients with advanced stage tumors, lymphadenectomy should be considered if optimal debulking has been performed. I fully agree with this recommendation of the JSGO and I would like to discuss the role of lymphadenectomy in the management of ovarian cancer.
Efficient FPGA-based Hardware Algorithms for Approximate String Matching
Sadatoshi MIKAMI,Yosuke KAWANAKA,Shin’ichi WAKABAYASHI,Shinobu NAGAYAMA 대한전자공학회 2008 ITC-CSCC :International Technical Conference on Ci Vol.2008 No.7
In this paper, an efficient FPGA-based hardware algorithm and its extensions are proposed for calculating the edit distance as a degree of similarity between two strings. The proposed algorithms are implemented on FPGA and compared to software programs. Experimental results show the effectiveness of the proposed algorithms.
Designing Traffic Signal Patterns through Genetic Algorithms
Sadayoshi MIKAMI,Jun Nakajima,Yukinori KAKAZU 대한전자공학회 1992 대한전자공학회 학술대회 Vol.1992 No.10
This paper describes a new optimization technique for the design of traffic signal patterns. The proposed method uses a Genetic Algorithm for searching through the better signal patterns. Since the Genetic Algorithm is effective to search directly through a huge binary coded state spaces, the proposed design method has the following advantages over the conventional OR methods: (1) on-line optimization is available within a reasonable time, (2) there is no limitation to the types of signals to be optimized. Some computer simulations are carried out and its ability of getting high quality control in a short period is demonstrated.
Detecting Nonlinearity in Prediction Residuals of Snoring Sounds
Tsuyoshi Mikami 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
This paper focuses on the nonlinear properties of snoring sounds for the purpose of obstructive sleep apnea diagnosis. Snoring sounds are convolutional sounds caused by wheezing of air way obstruction and oscillation of soft palate. Namely, it should be natural that the snoring sounds are generated from an onlinear dynamics, but the nonlinear properties of them have not yet been studied so far. In this paper, the nonlinearity is defined as the predictability using alinear AR prediction model, and the prediction residuals are analyzed by portmanteau test.
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.
Acotiamide Has No Effects on Esophageal Motor Activity or Esophagogastric Junction Compliance
Hironobu Mikami,Norihisa Ishimura,Mayumi Okada,Daisuke Izumi,Eiko Okimoto,Shunji Ishihara,Yoshikazu Kinoshita 대한소화기 기능성질환∙운동학회 2018 Journal of Neurogastroenterology and Motility (JNM Vol.24 No.2
Background/Aims The novel prokinetic drug acotiamide is used for treatment of functional dyspepsia. It is still unclear how acotiamide has effects on esophageal motor function. Esophageal peristalsis and esophagogastric junction (EGJ) compliance has an important role for prevention of esophageal mucosal damage caused by gastroesophageal reflux, however, few studies have analyzed the effects of acotiamide on those former activities and none have investigated its effects on EGJ compliance. The aim of our research was to examine the effects of acotiamide on esophageal motility and EGJ compliance. Methods We enrolled 3 gastroesophageal reflux disease (GERD) patients as well as 9 healthy volunteers. Using high-resolution manometry, we examined esophageal motor activity parameters, including esophageal body contractions and lower esophageal sphincter (LES) pressure. While, EGJ compliance was evaluated using a functional lumen imaging probe. Following determination of baseline values for esophageal motor activities and EGJ compliance, acotiamide at a standard dose of 300 mg/day was administered for 3 days. All measurements were performed again 2 hours after the last acotiamide administration. Results In the healthy volunteers, as compared with the baseline values, acotiamide administration did not significantly change esophageal body contractions and LES pressure. And EGJ distensibility was not significantly changed (distensibility index in 40-mL distension: 3.5 ± 0.4 vs 3.3 ± 0.5 mm2/mmHg). Similarly in the GERD patients, there were no differences in either esophageal motility or EGJ compliance between before and after acotiamide administration (distensibility index in 40-mL distension: 6.2 ± 0.5 vs 6.5 ± 1.1 mm2/mmHg). Conclusion In both healthy individuals and GERD patients, standard dose acotiamide dose does not have significant effects on esophageal motor activities or EGJ compliance.