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반복적 개구운동과 두부자세의 변화가 악관절진동에 미치는 영향
곽동근,한경수,김종영,Kwag, Dong-Kon,Han, Kyung-Soo,Kim, Jong-Young 대한안면통증구강내과학회 2000 Journal of Oral Medicine and Pain Vol.25 No.1
This study was performed to investigate the effects of repetitive mandibular opening movement and change of head posture on the vibration of temporomandibular(TM) joint. For this study, 23 patients with internal derangement of TM joint were selected. All they had clinically noticeable TM joint sound. Observation of the joint vibration were performed in four head postures, namely, natural head posture (NHP), forward head posture(FHP), upward head posture(UHP), and downward head posture(DHP). For recording of joint sound vibration, Sonopak of Biopak system(Bioresearch Inc., Milwaukee, USA) was used, The author could take results related to integral higher than 300Hz, integral lower than 300Hz, ratio of integral higher than 300Hz to integral lower than 300Hz, total integral which was sum of higher and lower integral, peak amplitude, and peak frequency in each opening movement, which was carried out three times in each head posture. Integral means amount of vibration. The data obtained were analysed by SPSS windows program and the results of this study were as follows : 1. In NHP, total integral in right TM joint was 5O.3Hz in the first opening, 67.9Hz in the second opening, and 74.0Hz in the third opening movement, bur there was no significant increase of total integral with repetitive opening movement. This finding was similar in left TM joint. Integral lower than 300Hz were higher than integral higher than 300Hz in almost every opening movement. 2. There was no significant difference of total integral between right and left side of TM joint, but there was a tendency of higher total integral in right TM joint than that in left TM joint except for results in DHP. 3. Peak amplitude in NHP ranged from 2.0 to 4.7, and peak frequency in NHP were 101.4-170.0Hz. And there was no consistent findings related to increase or decrease of these value according to repetitive opening in each head posture. 4. Change of head posture did not result any difference in integral, peak amplitude, and peak frequency. In conclusion, change of head posture and repetitive mandibular opening movement did not make any significant effect on the vibration of temporo-mandibular joint, especially, on total integral, peak amplitude, and peak frequency.
80년대 플러싱 한인 상점의 분포 현황과 시사점 : 1983~4년 플러싱 상인번영회 회원록을 중심으로
곽동근,임대근 글로벌문화콘텐츠학회 2018 글로벌문화콘텐츠학회 학술대회 Vol.2018 No.2
1980년대까지 ‘리틀 서울’로 뉴욕 한인사회의 고향과도 같았던 플러싱은 이미 오래전에 차이나-코리아타운이 되었다. [1983~1984 플러싱 상인번영회 회원록]을 통한 그 당시 플러싱 한인상점의 분포현황을 디지털콘텐츠로 구현해 보았고, 이를 토대로 현재 플러싱 한인 상점의 분포와 비교를 통해 한인타운의 발전과 변화과정을 살펴보았고, 향후 한국 내 외국인 거주지역의 발전 방향을 유추할 수 있는 자료로 의미가 있다고 본다.
곽동근,권병덕,최선길,강성구,김철우 대한신경외과학회 1983 Journal of Korean neurosurgical society Vol.12 No.4
A case of histologically proved primary reticulum cell sarcoma is presented. A female patient with headache and left hemiplegia was proved to have reticulum cell sarcoma after surgery. The tumor was single in the frontal cortex and showed peculiar contrast enhancement pattern on computed tomogram. Near-total extirpation was verified by post-operative CT.