하악골 전돌증 환자에서 양악 수술과 하악 단독 수술의 술 후 안정성에 관한 연구 : Jaw Surgery And Single Mandibular Surgery in Mandibular Prognathism

박재완,이동근 원광대학교 치의학연구소 2002 圓光齒醫學 Vol.11 No.3

Le-Fort Ⅰ Osteotomy is considered by many surgeons to be a safe and predictable method for correcting various dentofacial deformities. However, there are controversial options concerning the stability of two-jaw surgery (Le-Fort Ⅰ osteotomy and sagittal split ramus osteotomy) compared to single mandibular surgery (sagittal split ramus osteotomy). The purpose of this study was to evaluate the post-operative stability of mandible in two-jaw surgery and single mandibular surgery, to help the establishment of accurate treatment planning in patients with a skeletal class Ⅲ malocclusion. There were 15 patients who had been undergone two-jaw surgery and 20 patients who had been undergone single mandibular surgery. Lateral cephalograms of these 2groups ; Preoperation and immediate postoperation, postoperatively 1month, postoperatively 3months, at the latest follow up(>6months) ; were analyzed by linear measurement to evaluate changes in position (hard tissue B, Pogonion point) and compare relapse both group. The results obtained were as follows ; In view of B-point, the horizontal relapse rate of single mandibular surgery was 10.17% at post-op 1months, 12.52% at post-op 3months, 13.01% at post-op 6months and two-jaw surgery was 10.23% at post-op 1month, 11.84% at post-op 3months, 12.97% at post-op 6months. the horizontal relapse rates of Pogonion point were 10.78 at post-op 1month, 12.21% at post-op 3months, 12.98% at post-op 6months in single mandibular surgery and those were 10.27% at post-op 1month, 11.33% at post-op 3months, 12.01% at post-op 6months in two-jaw surgery. In terms of vertical relapse rate, rates of B point were 22.96% at post-op 1month, 28.30% at post-op 3months, 29.56% at post-op 6months in single mandibular surgery and 21.14% at post-op 1month, 25.45% at post-op 3months, 28.86% at post-op 6months in two-jaw surgery. Those of Pogonion point were 26.63% at post-op 1month, 28.40% at post-op 3months, 29.29% at post-op 6months in single mandibular surgery and 20.20% at post-op 1month, 25.44 at post-op 3months, 27.68% at post-op 6months in two-jaw surgery. There were no statistical difference between single mandibular surgery and two-jaw surgery in mandibular stability.

저열량영양식품 섭취에 따른 비만여성의 체중감량 효과에 관한 연구

박순영,최중명,김동현,최경식,최봉근,윤태영,유동준 한국보건통계학회 2002 보건정보통계학회지 Vol.27 No.1

In the method of obesity treatment, Dietary method, Exercise method, Behavior method, and Drug method, Dietary method is the most important control method of obesity. The aim of this study is that evaluate the weight reduction effect of the specific low calorie diet products (KSD I and 2) in obese women. Twenty five women who were volunteer participated in this study. They have no heart diseases and metabolic diseases. we classified two groups : obese group and standard group. Anthropometric indices were measured in all subject for four times. Venous blood sample were taken to determine the lipid profiles, glucose level, and liver function test. In obese group, body weight were reduced 2.85±1.46kg, but showed statistically non-signicicant. Body mass index were gradually reduced, 1.09±0.93kg/m^2(p<0.05).In blood analyses, total cholesterol were reduced 10.61 ±33.4mg/dℓ ( p<0.05). KSD 2 significantly inhibited maltase, sucrase and α-glucosidase from rat intestine, and porcine pancreatic lipase, although KSD I inhibited only the sucrase.

음식물 발효퇴비내 염분의 용출특성

박동근,장정국,박태주 東西大學校 1997 동서논문집 Vol.3 No.1

The objectives of food waste composting are to treat the wastes and to reclaim valuable substances present in the wastes for possible reuse. In the process of food waste composting, however, the salt in the compost can be retained within the soil for extended periods of time. In this study, therefore, a series of experiments were carried out to investigate the leaching characteristics of the salts in the compost of food waste. The resalts obtained from this study can be concluded as follows: 1. The composting process reduced the amount of waste to management because the 80% of water content in the food waste was lowered to 10% of that in the compost, and organics substances in the food waste were decomposed into CO₂, NH₃, water, and various inorganic substances. 2. It was found that the amount of toxic substances such as heavy metals in the food waste were very little, therefore, the metal concentration might not cause any adverse effect on the growth of the corps. 3. The concentrations of leachable cations in the compost were 10∼20% higher than those in the food waste of around 1000 meq/kg. And, SAR of the leachates of the food waste and compost was around 3. 4. The leaching rate of the salts in the compost was decreased with increasing the composting period. Also, the electric conductivities of initial leachate were increased with increassing the mixing ratio of the compost to the soil used. 5. The threshold dose of the compost per day per unit area of the soil was estimated with the following equation: mmho 12.0meq·cm kg 1.65L Threshold dose= 5______ × ___________ × _______ × _____ cm L·mmho 1200meq d·㎡ = 0.08kg/㎡/d

표준 용매 벤젠의 Rayleigh 비의 온도 의존성

박일현,이종근,윤관한,조동환,민병길,방대석 金烏工科大學校 2000 論文集 Vol.21 No.-

The Rayleigh ratio of benzene is a very important physical constant with which the integrated scattered intensity of laser light scattering can be converted into the absolute value. In this study temperature dependence of Rayleigh ratio of this solvent has been investigated with two different methods in the temperature range of 25-75℃. It was found that in the direct measurement the non-linear behavior of its Rayleigh ratio were observed as increasing temperature even if the scattering volume correction was applied to the scattered intensity of benzene. However the result of indirect measurement based upon the invariance of molecular weight of standard polystyrene polymer for any polymer solution temperature showed us that its temperature dependence up to 75℃ could be expressed with the Benoit's linear equation rather than the non-linear one. It seems that the scattered intensity in direct method has more complicate contributions at the elevated temperature. Further research works are necessary in order to solve such discrepancy clearly.

배드민턴 運動選手訓練 및 競技試合에 關한 實態調査 : 中, 高等學校選手를 中心으로

朴東根 淸州敎育大學校 1977 論文集 Vol.14 No.-

체육수업에서 아동의 내적 동기에 대한 연구

박동근 淸州敎育大學校 1998 論文集 Vol.35 No.-

The Purpose of this study was to analyze sex distinction of children. In teaching physical education. The control aspect and informative aspect of athletic teacher, a class teacher and a class woman teacher influence intrisic motivation induction of chirdren. The study use intrinsic motivation inventory of Ryan's question paper. In order to analysis confirmatory factor and inner consistency of Yu(1997)'s question paper. We got these conclusion, as a result of self administration method in question paper use SAS package(window ver 6.11). A result is following as: First, The high control aspect and informative aspects has decrease intrinsic motivation induction, while the middle of that has increase, and the low of that presented decrease. Second, The interest presented high interrelation in perceptive ability, effort, important dimension and tension pressure dimension. Especially, perceptive ability, interrelation effort, important dimension and dimension pressure dimension has presented high. Third, The difference of intrinsic motivation presented following as high in interest dimension, tension pressure dimension, effort, important dimension and perceptive ability. Fourth, the factors of group, difference of man and woman presented significant to factors, group and sex. Fifth, the effect of interest and perceptive ability presented following as a class teacher, athletics teacher and a class woman teacher and effort, important and tension, pressure dimension presented following as a class teacher, class woman teacher and athletic teacher. But there was a big difference of that and the difference presented the influence child in sex distinction.

좌심실 수축기 기능장애를 동반한 양수색전증 1예

박대균,홍경순,두영철,한규록,오동진,유규형,임종윤,고영박,이광학,이영,송원근,김현태 대한순환기학회 1999 Korean Circulation Journal Vol.29 No.8

청소년의 스포츠 참가와 대인관계 성향의 관계

박태근,서동균 京畿專門大學 2000 京畿專門大學 論文集 Vol.- No.28

The researcher sampled 193 students of middle schools in Seoul and Inchon. The purpose of this study is to investigate the relationship between youth's sport participation and interpersonal relations disposition and to provide a basis for the development of personality education policy about youth. Here the researcher set youth's sport participation as a independent variable. Independent variable is youth's sport participation as classified by participation mode. Interpersonal relations disposition as a dependent variable was classified by role disposition, sociometric disposition, and expressive disposition. The questionnaires designed for this study consist of items to represent each variable. The data collected from the questionnaires were by statistical analysis methods such as multiple classification analysis, ANOVA, correlation analysis and multiple regression analysis. The conclusions of this study, verifying the hypotheses about the relationships between youth's sport participation and interpersonal relations disposition found are as follows; Youth sport participants show positive interpersonal relations disposition more so than that of nonparticipationts.

소아 상완골 외과 골절 치료후 발생한 운반각 변화 : 운반각의 새로운 방사선적 측방 방법에 대하여 The New Radiologic Carrying Angle Measuring Method

박동만,이정윤,김경택,손성근,김성수 대한골절학회 1995 대한골절학회지 Vol.8 No.1

The lateral condyle fracture of humerus in children is the second most common fracture among the elbow fractures. In dealing with this fracture, we have frequently encountered the various complications due to physeal plate and intraarticular involvement. Change of the carrying angle is one of the common complications, but many authors reported different results about the change of carrying angle. Also, it is too difficult to measure the carrying angle during the early stage of the treatment because of cast immobilization, motion limitation of elbow, and wide variations of radiologic carrying angle according to elbow position changes. We performed this study to find the more stable and predictable new radiologic measuring mothod about the carrying angle, and then analysed the factors affecting the changes of carrying angle of the 23 patients of the lateral condyle fractures of the humerus in children who were treated and followed up more than twelve months at the Department of Orthopaedic Surgery, Dong-A University Hospital from May 1990 to April 1993. The results were as follows. 1. Carrying angles by Beals method showed variable values according to the elbow positions, but A-angles by the new measuring method were relatively stable repudless of the elbow positons. 2. Increase of clinical carrying sngle was 3 cases, decrease was 9 cases, and ranges of clinical carrying angle change were from -7 degress to +4 depees. Imease of A-angle was 7 cases, decrease was 4 cases, and ranges of A-angle change were form -10 degrees to +10 degrees. 3. The change of carrying angle showed no correlation with Jacob stage, follow up duratian, metaphyseal height and interval between injury and treatment. But the incidence and the amount of carrying angle change were increased accarding to the inaeaaed age at injury(r=0.62, P$lt;0.01). 4. Tbere were statistical significant correlation(r= -0.65, P$lt;0.01) and regreasion between the change of carrying angle and A-angle: Y -0.99X + 0.56(Y:change of clinical carrying angle, X: A- angle change), (r2=0.42, P$lt;0.01).

경골 천정 골절에 대한 임상적 고찰

박동만,이정윤,김경택,손성근 대한골절학회 1994 대한골절학회지 Vol.7 No.2

A pilon fracture, which is defined as a comminuted intraarticular fracture of distal tibia, involve the articular surface and metaphysis with occasional extension in the diaphysis. The management has been notoriously difficult due to the associated injury, intraarticular fracture, severe communition of distal tibia, joint incongruity and soft tissue trauma. Most authors has reported good results after a surgical treatment by a priociple of AO group treatment. Rescently, Bone et all reports that ROM and outcomes of the severly comminuted or open fractures of the distal intraarticular tibia were very good in using the external fixator. The result of treatment of 22 cases were analysed at the Department of Orthopedic Surgery, Dong-A University hospital from Mar. 1990 to Feb. 1993. The results were as follows; 1. The incidence of pilon fracture is 8.3% of all anlle fracture treated during same period. 2. The most common cause of injury is fall down(63.3%). 3. The most frequent type is type 3 (54.6%).(by Rudei & Allgower) 4. The most common associated injury is compression fracture of spine and calcaneal fracture(4 cases) 5. There are eight cases open Pilon fracture(36.3%) 6. We had treated severe communited fracture and open fracture by using external fixator, we achived good ROM and outcomes. 7. The more accurate reduction, the better clinical result. 8. Complication of the Pilon fracture were traumatic arthritis, non-union, malunion, wound int, etc.