금속 도재 수복물을 이용한 청년기 법랑질 이형성증 환자의 수복증례

김홍준,이재훈,한동후,문홍석 大韓齒科補綴學會 2012 대한치과보철학회지 Vol.50 No.3

전반적인 치아변색과 치아마모가 심한 환자들이 심미를 위해 전치부 치료를 원하는 경우가 있다. 이런 경우 법랑질 이형성증에 대해 의심해 보아야 하며 임상 검사 및 방사선 검사를 통해 확인을 해야 한다. 법랑질 이형성증으로 판단된 경우 단지 심미적 목적 하에 전치부 치료만 하는 것은 바람직하지 못하다. 본 증례는 법랑질 이형성증으로 진단된 청년기 환자에서 대부분의 치아를 금속 도재 수복물로 치료하였다. 전반적인 변색 및 마모, 치관 파절이 있었으며, 좌측 전치부와 구치부에 교차교합이 있었다. 심미적, 기능적인 개선을 목적으로 하여 치아를 수복하였다. 전치부의 교차교합은 해소하였고, 구치부의 교차교합은 해소하지 않은 채로 진행하였다. 수복 이후 환자는 심미적, 기능적으로 만족하였으며, 3개월간의 임상관찰에서 특이할 문제없이 안정적으로 유지되어 보고하고자 한다. Some patients with generalized attrition and teeth discoloration may want their anterior teeth to be treated just for esthetic improvement. Ameologenesis imperfecta, however, should be considered for such patients prior to any treatment with thorough clinical and radiographic examination. If a patient is diagnosed with amelogenesis imperfecta, the treatment on anterior teeth just for esthetic purpose is not advisable. In this case, a young man with amelogenesis imperfecta was treated with metal-ceramic restorations. The patient had generalized attrition, teeth discoloration, crown fracture, and cross-bite on the left teeth. The ultimate objective of this treatment was to enhance esthetics and masticatory function. The cross-bite on the left anterior teeth was treated with restorations, whereas the reverse horizontal overlap was maintained on the posterior. The patient was satisfied with the result esthetically and functionally, and the third month recall examination revealed no pathologic changes associated with the treatment.

Thermomicrobium roseum 유래 Alcohol Dehydrogenase의 정제 및 특성

윤석영,홍민표,김은호,공광훈 중앙대학교 기초과학연구소 2000 基礎科學硏究所 論文集 Vol.14 No.-

Alcohol dehydrogenase from Thermomicrobium roseum was purified to electrophoretic homogeneity approximately 77-fold with a 38% activity yield by adenosine 5'-monophosphate and Mono Q column chromatography. The molecular weight of the enzyme was determined to be approximately 43,000 by SDS-polyacrylamide gel electrophoresis and 88,000 by gel chromatography, indicating a homodimeric structure. The Km and Vmax values of the enzyme for ethanol were 24.2 mM and 12.8 ㎛ol/min/mg, respectively. Pyrazole notably inhibited the enzymatic activity. Ca2+ ion activated the enzyme activity, but Cu2+ inhibited. The activity of the enzyme was optimal at pH 10.0 and 60℃.

茵蔯淸肝湯이 肝保護 및 纖維化 抑制에 미치는 影響

승현석,김영철,이장훈,우홍정 WHO COLLABORATING CENTRE FOR TRADITIONAL MEDICINE 2003 東西醫學硏究所 論文集 Vol.2003 No.-

Objective : The aim of this study is to investigate the inhibitory effect of Injinchunggantang on hepatic sclerosis induced by CCl₄. Methods : Weight, liver function test and complete blood cell count, gross findings, and findings on liver tissue of the past(Hematoxylin & Eosin stain, Masson-Trichrome stain) were studied. Results : When it comes to the change of rats body weight, The CCI₄-Injinchunggantang group lost far less weight than The CCl₄ only group. In the liver function test, which is focused on various area such as total cholesterol, alkaline phosphotase albumin, aspartate transaminase, alanine transaminase, The CCl₄ Injinchunggantang group was much more closer to normal limit than the CCl₄ only group. In the complete blood cell count, including while blood cell, red blood cell, hemoglobin, hematocrite, platelet, The CCl₄ Injinchunggantang group significantly closer to normal limit than CCl₄ only group. In the gross findings of hepatic fibrosis models, Injinchunggantang showed inhibitory effect on hepatic fibrosis in the order. In the past findings of hepatic fibrosis models in Hematoxylin & Eosin, Masson-Trichrome staining, the liver in CCl₄ only group showed atrophy and necrotic change with white nodules, whereas that of CCl₄ Injuchuinggantang group showed lesser significant change with the well preserved tone of the tissue. In the extent of the inhibition of the hepatic fibrosis, the Injinchunggantang group showed statistically significant inhibitory effect(p<0.05) in the sclerosis model. Conclusions : These results show that Injinchunggantang have inhibitory effect on hepatic sclerosis induced by CCl₄ and further ultimately prevent liver cirrhosis. To obtain more credible results in the experiment, the invention of a new experimental model more similar to human hepatic sclerosis is still needed.

국내 항공로선의 공급과 운임탄력성

함영훈,윤석홍 한국항공대학교 경영연구소 1997 경영연구 Vol.4 No.1

Price elasticity analysis of domestic air service supply is substantial to governments to establish civil air transport policy and to industries, both of carriage and manufacture, to determine production level. Considering the consistency of raw data and occupancy ratio of the routes to the total demands, three trunk lines (Seoul-Cheju v.v., Seoul-Pusan v.v., and Pusan-Cheju v.v.) are studied and the study period is for the 19 years between 1969, when airline were privatized, and 1987 when airline were discontinued to be monopoly. Price and cost elasticities of supply both of Seoul-Cheju v.v and Pusan-Cheju V.V. route are less than unitary. It means, first, air trips from and to Cheju include same properties of the demand for the commodities which are necessary in daily life and, second, the airline W e r s some costs partially to her international routes. Because there are various competitive and substitutive ground transports, the price and cost elasticity Q supply of Seoul-Pusan v.v. route are very high. Theses analyses implement governments to establish air transport policy : first, government renovates current air navigation and control system to decrease any cancellations and pauses af operations from the bad weather Cheju area Second, government keeps current occupancies o f carriages of each transport means between Seoul and Pusan.

원격존재기법을 이용한 로봇팔을 가진 이동형 로봇의 제어

김용일,최원준,홍순학,이상훈,한석균 경희대학교 산학협력기술연구원 1995 산학협력기술연구논문집 Vol.1 No.-

검도 머리치기 유형에 따른 상지의 근전도 비교 분석

장언량,박영훈,염창홍,서국웅,노석규 한국운동역학회 2004 한국운동역학회지 Vol.14 No.3

E. R. JANG, Y. H. PARK, C. H. YOUM, K. W. SEO, S. J. NOH. Study of the forearm EMG activities during Kumdo head striking. Korean Journal of Sport Biomechanics, Vol. 14, No. 3, pp. 219-233, 2004. The purpose of this study was to compare the EMG activities of four-forearm muscles during Kumdo head striking. The four skilled and unskilled Kumdo club members were selected from D university in B city. Investigated muscles were left brachioradialis, right brachioradialis and left flexor carpi radialis, right flexor carpi radialis. Raw EMG data were collected during the head striking motions and the average EMG were calculated by the frame width of 0.05s, and then the average %MVC were calculated. The average %MVC values of each muscle in each group were compared. The results are as follows. 1) In each group, there were no significant statistical differences between every muscle over the all phases. 2) There were significant differences, however, between skilled group and unskilled group. The former got higher average %MVC at left flexor carpi radialis and the latter at right brachioradialis in the ready phase and in the impact phase.

노인 낮병원의 심리사회적 치료 프로그램이 노인의 신경인지기능과 우울 증상에 미치는 효과

유계준,송정은,오병훈,안석균,이홍식,오희철,구은형,황혜숙,이은철 大韓神經精神醫學會 1999 신경정신의학 Vol.38 No.5

노인에게 있어서 신경인지기능의 저하와 우울 증상은 가장 흔한 장애이며 신체적, 정신적인 면에 많은 영향을 미치고 있다. 또한 이러한 장애중 비임상군에서 심리사회적 치료개입의 효과가 보고되고 있다. 이러한 측면에서 지역사회에서 노인에게 제공되는 심리사회적 치료개입의 중요성이 높아지고 있다. 이전의 연구에서는 대상이 특정 집단이거나, 비교군이 없거나, 치료효과에 대한 추적 관찰이 이루어지지 않는 등의 제한점이 있었으며, 현재 국내의 노인 낮병원은 소수에 불과하고 이러한 낮병원의 치료효과에 대한 연구는 거의 없는 실정이다. 따라서 본 연구는 지역사회 정신보건센터에서 운영하는 노인 낮병원에 참가하는 노인들을 대상으로 낮병원의 심리사회적 프로그램이 노인들의 신경인지기능과 우울 증상에 미치는 효과와 이에 대한 유지 효과의 유무를 알아보고자 하였다. 경기도 광주군 정신보건센터의 노인 낮병원에 참여한 노인을 치료군으로, 치료를 거부하거나 치료 중 탈락한 노인을 비교군으로 하여 10주간의 낮병원 치료전후와 치료종결 후 10주에 신경인지기능은 한국형 간이 정신상태검사(이하 MMSE-K)로, 우울 증상은 단축형노인우울척도(이하 SGDS)로 평가하여 두 군을 비교하였고 치료군의 치료 직후와 치료종결 후 10주를 비교하였다. 연구결과 노인 낮병원의 심리사회적 치료가 시간에 따른 SGDS점수 변화에 통계학적으로 유의한 영향을 미쳤으며, MMSE-K점수 변화에는 통계학적으로 유의한 영향을 미치지 않았다. 또한 10주 추시가 가능했던 치료군 중 약 43%가 10주 후 SGDS가 증가하여 호전되었던 우울증상의 악화를 보였다. 본 연구 결과 노인 낮병원의 심리사회적 치료 프로그램 개입은 노인에게 있어서 우울 증상을 호전시키며 신경인지 기능에는 직접적인 영향을 미치지 않는 것을 알 수 있었다. 또한 상당수에서 심리사회적 치료 개입으로 인한 우울 증상의 호전이 유지되지 않음을 알 수 있었다. 이는 노인우울증상의 치료에 낮병원의 심리사회적 치료 프로그램이 효과적일 수 있음과 치료 후 이를 유지하기 위한 부가적인 치료개입의 필요성을 시사한다. Cognitive impairment and depression are the most common symptoms affecting the elderly on physical and mental states. Studies have shown that these symptoms in mild cases are improved by psychosocial intervention, emphasizing the importance of therapeutic intervention provided in the community. The purpose of this study was to investigate whether the psychosocial program at a geriatric day care service has any therapeutic effect on the cognitive function and depressive symptoms in the elderly and whether such effect can be maintained. The experimental group was composed of 37 elderly patients attending the day care service at the mental health center located in Kwangju county, Kyonggi province. The control group was composed of 22 elderly patients who either refused intervention or who dropped out of the program. Cognitive function was assessed with the Korean version of the Mini-Mental State Exam(MMSE-K), and depressive symptoms were assessed with the Short-form Geriatric Depression Scale(SGDS). The experimental group and the control group were compared on the score of on each test, which was administered before and after the program and 10 weeks after discontinuation of program. In the experimental group, the scores acquired immediately after the program and at 10 weeks of follow-up were also compared. The results showed that psychosocial intervention at a geriatric day care service was significantly associated with the change in SGDS scores dependent on time but not significantly associated with the change in MMSE-K scores. In the experimental group whose follow-up assessment was possible, it was further shown that 43% of patients had increased SGDS scores 10 weeks after the program ended, indicating that depressive symptoms had worsened. This study suggests that psychosocial therapeutic intervention in the geriatric day care service improve depressive symptoms but not cognitive functions in the elderly. In addition, for a considerable percentage of subjects in the experimental group, the improvements in depressive symptoms were not sustained after the intervention was withdrawn. These findings proposes a need of strengthening therapeutic intervention to maintain such effect.

Relationship between RADARSAT Backscattering Coefficient and Rice Growth

Hong, Suk-Young,Hong, Sang-Hoon,Rim, Sang-Kyu The Korean Society of Remote Sensing 2000 大韓遠隔探査學會誌 Vol.16 No.2

This study was carried out to assess the use of RADARSAT data which is C-band with HH polarization for the rice growth monitoring in Korea. Nine time-series data were taken by shallow incidence angle (standard beam mode 5 or 6) during rice growing season. And then, backscattering coefficients ($\sigma$$^{\circ}$) were extracted by calibration process for comparing with rice growth parameters such as plant height, leaf area index(LAI), and fresh and dry biomass. Field experimental data concerned with rice growth were collected 8 times for the ground truth at the study area, Tangjin, Chungnam, Korea. At the beginning of rice growth, backscattering coefficients were ranged from -l6~-l3dB when rice fields were not covered with rice canopy and flooded. At the maximum vegetative stage of rice, backscattering coefficients of the rice field were the highest ranging from -4.4dB~-3.1dB. The temporal variation of backscattering coefficient($\sigma$$^{\circ}$) in rice field was significant in this study. Backscattering coefficient ($\sigma$$^{\circ}$) of rice field was a little bit lower again after heading stage than before. This results show RADARSAT data is promising for rice monitoring.

Relationship between RADARSAT backscatter coefficient and rice growth

Hong, Suk Young,Hong, Sang Hoon,Rim, Sang Kyu 대한원격탐사학회 1999 International Symposium on Remote Sensing Vol.15 No.1

This study was carried out to assess the use of R.ADARSAT data which is C-band with HH polarization for the rice growth monitoring in Korea. Nine time-series data were taken by shallow incidence angle (standard beam mode 5 or 6) during rice growing season. And then, backscatter coefficient (σ °) were extracted by calibration process for comparing with rice growth parameters such as plant height, leaf area index(LAI), and fresh and dry biomass. Field experimental data concerned with rice growth were collected 8 times for the ground truth at the study area, Tangjin, Chungnam, Korea. At the maximum vegetative stage of rice, backscatter coefficients were the highest at the flooded rice field ranging from -4.4dB∼-3.1dB. The temporal variation of backscatter coefficient(σ °) in rice field was significant in this study. Backscatter coefficient (σ °) of rice Meld was a little bit lower again after heading stage. This results show RADARSAT data is promising for rice monitoring.

Relationship between RADARSAT Backscattering Coefficient and Rice Growth

Suk Young Hong,Sang Hoon Hong,Sang Kyu Rim 大韓遠隔探査學會 2000 大韓遠隔探査學會誌 Vol.16 No.2

This study was carried out to assess the use of RADARSAT data which is C-band with HH polarization for the rice growth monitoring in Korea. Nine time-series data were taken by shallow incidence angle (standard beam mode 5 or 6) during rice growing season. And then, backscattering coefficients (σ˚) were extracted by calibration process for comparing with rice growth parameters such as plant height, leaf area index(LAI), and fresh and dry biomass. Field experimental data concerned with rice growth were collected 8 times for the ground truth at the study area, Tangjin, Chungnam, Korea. At the beginning of rice growth, backscattering coefficients were ranged from -16~-13dB when rice fields were not covered with rice canopy and flooded. At the maximum vegetative stage of rice, backscattering coefficients of the rice field were the highest ranging from -4.4dB~-3.1dB. The temporal variation of backscattering coefficient(σ˚) in rice field was significant in this study. Backscattering coefficient (σ˚) of rice field was a little bit lower again after heading stage than before. This results show RADARSAT data is promising for rice monitoring.