복강경을 이용한 대장 부분 절제 시행 1예

박재갑,서경석,정회원,김선회,오용석,송인성,박용현 대한대장항문학회 1993 Annals of Coloproctolgy Vol.9 No.1

한국인 성장기 아동에서 Angle씨 2급 1류 부정교합자의 골격 특징

경희문,권오원,김유경,성재현 대한치과교정학회 1989 대한치과교정학회지 Vol.19 No.3

This study was designed to investigate the difference of teeth and craniofacial complex between normal occlusion and Angle's Class II, div. 1 malocclusion in korean childern. The sample was divided into 2 groups, the 66 subjects with normal occlusion and 96 subjects with Angle's Class II, div.1 malocclusion in both sexes. The results obtained were as follows: 1. No significant differences were observed in ant. cranial base length & flexure(saddle angle) between normal occlusion & cranial Angle's Class II, div. 1 malocclusion group, but posterior cranial base length of Class II, div. 1 malocclusion group was larger than that of normal occlusion group. 2. No significant difference was observed in the anteroposterior position of Maxilla to cranial base between two groups, but mandibular position in Class II. div. 1 malocclusion was posterior and interior to that of normal occlusion. 3. The length of maxilla (ANS-PSN) was larger in Class II, div. 1 malocclusion than normal occlusion. The length of mandibular body(Go-Me) was nor differnet between Class II, div. 1 malocclusion and normal occlusion. 4. Maxillary incisor position of Class II, div. 1 malocclusion to cranial base was more protrusive than that of normal occlusion, but there was no difference in mandibular incisor position between two groups.

수면 다원검사상 정상인 단순 코골기 환자에서 레이저 수술의 임상적 효과

김경수,이정권,김성식,박국진,한재욱,김원석 대한이비인후과학회 1998 대한이비인후과학회지 두경부외과학 Vol.41 No.3

수소손상 검출과 평가기술

원순호,현양기,이종오,조경식,이재도 한국비파괴검사학회 2002 한국비파괴검사학회지 Vol.22 No.1

산업현장에서 수소는 설비를 손상시킬 수 있는 주원인 중의 하나이며, 종종 설비를 파괴시키는 사고를 발생시킨다. 수소손상에 의한 결정립계의 공동 또는 미세균열은 강재의 파괴인성과 강도를 떨어뜨리는 원인이 되고, 따라서 과거 제한적인 방법으로 수소손상을 평가하기 위한 시도가 수행되었다. 본 연구에서는 초음파를 적용하여 수소손상을 검출하고 평가하기 위한 연구를 수행하였다. 미세조직시험에 의해 확인된 시험편을 이용하여 초음파의 속도와 감쇠계수를 구한 결과, 수소손상에 의해서 초음파 속도는 감소하고 감쇠는 현저하게 증가하는 것으로 나타났다. 이러한 결과를 바탕으로 수소손상을 검출하기 위한 신뢰성 있는 평가법을 제시하였다. The presence of hydrogen in industrial plants is a source of damage. Hydrogen attack is one such form of degradation and often causing large tube ruptures that necessitate an immediate shutdown. Hydrogen attack may reduce the fracture toughness as well as the strength of steels. This reduction is caused partially by the presence of cavities and microcracks at the grain boundaries. In the past several techniques have been used with limited results. This paper describes the application of an ultrasonic velocity and attenuation in hydrogen damage. Ultrasonic tests showed a decrease in wave velocity and an increase in attenuation. Such results demonstrate the potential for ultrasonic nondestructive testing to quantify damage. Based on this study, reliable recommendation is suggested to detect hydrogen attack.

난소의 호산성 투명세포암종 - 1예의 보고 -

하창원,고재수,명나혜,조경자,박상윤,김미경,장자준 대한병리학회 1992 Journal of Pathology and Translational Medicine Vol.26 No.5

학교체육경영에 있어서 교사의 직무태도에 영향을 미치는 요인분석

원기승,김경호,김영재 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.2

The purpose of this paper two to find out elements which have an effect on teacher's behavior and job satisfaction/dissatisfaction on physical education services in the managerial organization. These elements were called "Determining Factors of Job Accomplishment", and divided into immanent and external side in job. The former was defined as a sense that teachers have directly throughout job accomplishment, and the latter meant the organizational context of teacher's job accomplishment. It was assumed that the relation between some organizational elements and teacher's behavior would be conditioned by contingency variables as follow: types of physical education service, sex. Data were collected from 138 teachers in elementary schools and lower secondary schools by questionnaires in the fall of 2003. The summary of the results was: 1) In every of service job immanent side affected the positiveness of job accomplishment behavior. 2) Any categories of job external side have no effect on teacher's behaviors in Club Service(C.S). While in Program Service(P.S.) 4 categories: teachers group, principal, chief of physical education teachers, physical education service, related to daily behavior. And in addition to these 4 categories well-filled material condition was important in Area Service(A.S.). 3) Female teacher was activated only by job immanent side, while male teacher's activity was influenced by both sides. It was suggested that as to organizational power, the male accepted more compliantly than the female. 4) High job satisfaction exalted the willingness to job accomplishment but job dissatisfaction did not have relation to in it every services. 5) About the same factors provided for job satisfaction and dissatisfaction in C.S. but determining factors of both feelings to job were different in P.S., that is, job immanent side and the policy of services contributed to job satisfaction, fully equipped social and physical conditions reduced dissatisfaction.

현수교 캣웍 시공성 향상을 위한 Cross Bridge 설계

김호경,이재홍,최성원 국립7개대학공동논문집간행위원회 2003 공업기술연구 Vol.3 No.-

Effectiveness of cross bridge, which connects two parrallel catwalks, is examined to increase the allowable wind velocity for the construction of main cable. Based on a rigorous nonlinear analysis utilizing elastic catenary cable elements, proper numbers of cross bridge are proposed. This procedure is expected to be applied for the actual construction for a suspension bridge with experimental data from wind tunnel tests.

신이식후 발생하는 감염에 대한 고찰

김재필(Jae Phil Kim),조대옥(Dae Ok Cho),고경식(Kyung Sik Ko),안재형(Jai Hyung Ahn),이태원(Tae Won Lee),임천규(Chun Gyoo Ihm),김명재(Myung Jae Kim) 대한내과학회 1995 대한내과학회지 Vol.49 No.1

N/A Objectives: Renal transplantation is a major therapeutic advance for patients with chronic renal failure. But recipients of renal transplantation are prone to infection with both common and unusual organisms. And infectious diseases remain a major cause of morbidity and mortality in renal transplant recipients. This study was to analyze the infections in renal transplant recipients; its occurrence according to sites and organisms; comparison among immunosuppressive agents; prognostic differences of urinary tract infections(UTI) between those developed during 1 month after transplantation and those not developed; graft outcome; and patients mortality. Mothods: 181 renal transplant recipients were examined. They received renal transplantion between january 1979 and December 1992 at the Kyung-Hee University Hospital. 158 of them received transplantation from living-related donors, 22 from living-unrelated donors, and 1 from cadaver donor. Their age at the time of transplantation ranged from 14 to 66 years(mean 35.6 years), and the male to female ratio was 2.3: 1. The observation period ranged from 1 to 144 months(41.26±31.71, mean±S. D.). Results: 1) 110 recipients(60.7% of total) had 232 episodes of infectious complications whereas 71(39.3% of total) had no infectious episodes. About half of infectious episodes(128 episodes, 55.2% ) occurred during 1 month after transplantation. 2) The most common site of infection was urinary tract(138 episodes, 59.2%) whth the next sites coming in this order, bacteremia(32 episodes, 13.8%), pulmonary(21 episodes, 9.1%), and skin(21 episodes, 9.1%). 3) The causative organisms of UTI ranked in this order E. coli 21.7%, staphylococcus spp 14.5%, and pseudomonas spp 13.0%. 4) The causative organisms of bacteremia ranked in this order E. coli 34.4% salmonella spp 18.8%, pseudomonas spp 12.5 %, and staphylococcus spp 12.5%. 5) There was no significant differences of infectious episodes among immunosuppressive regimens. 6) Early UTI group(UTI occurred during 1 month after transplantation) recorded significantly higher incidence of urinary tract infections after 1 month that followed than non-UTI group. But there was no differences between two groups on graft and patients outcome. 7) The major cause of death was life-threatening infections(63.2 %). Conclusion: Most infections due to various organisms may occur during 1 month after transplantation. And still they constitute a major cause of death in renal transplant recipients.

응급의료센터에서 신경색의 조기진단

최경호,오동렬,이원재,박규남,박승현,황두영,김형국,정시경,김영민,김세경 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.4

To evaluate appropriate diagnostic studies for renal infartion in emergency medical center, we analysed 33 patients of renal infarction treated in this hospital for last 8 years. Eleven patients, 4 trauma associated and 7 aortic disease associated patients were excluded. They are 11 males and 11 females with a mean age of 51 years. Fourteen came to the emergency medical center and seven came to the outpatient department, in the other one patient renal infarction was developed during hospitalization with other disease. On their past history they had hypertension in 9, valvular heart disease in 5, and diabetic mellitus in 4 patients. Abdominal or flank pain was noted in 17 of 22(77%). The other symptoms were vomiting, nausea, fever and so on. On microscopic examination of initial urine in hospital, 5 patients showed more than 10 red blood cells by high power field examination. The mean lactic dehydrogenase level was 1,239 I.U/L(normal range 218-472 I.U/L), while the mean aspartate aminotransferase and mean alanine aminotransferase were 51 I.U/L(normal range 13-36 I.U/L) and 44 I.U/L(normal range 5-33 I.U/L). Abdominal ultrasonography showed positive findings in 5 of 16(31%), of which 3 were confirmed by Doppler ultrasonography. In 18, computed tomography was done and all those showed positive findings of renal infarction(100%). In conclusion, it is important that identify the elevated lactic dehdrogenase level in case of any suspicion about renal infarction and confirm by computed tomography.

결핵 진단을 위한 검사 방법간의 효율성에 관한 비교 분석

이원재,최석철,정천환,성희경,김태운 THE KOREAN SOCIETY FOR BIOMEDICAL LABORATORY SCINE 1999 Journal of biomedical laboratory sciences Vol.5 No.2

최근 다약제 내성균주의 출현과 후천성 면역결핍증으로 인한 결핵발병률의 증가는 전세계적으로 중요한 보건문제가 되었다. 따라서 보다 빠르고 신뢰할 만한 진단법은 결핵박멸을 위한 가장 중요한 필요조건 중의 하나일 것이다. 본 연구는 171명의 환자를 대상으로 폐결핵 진단의 전통적 방법들 (X-선,항산성 염색,배양)과 PCR법간의 진단적 가치와 효율성을 비교 검토하기 위해 시행하였다. 흉부 X-선 소견 및 검사 결과 그리고 다른 임상 소견들을 통해 결핵으로 확진된 예는 전체 171건의 검체 중 39예 (22.8%)였다. 이러한 확진을 근거로 할 때 각 검사별 민감도, 특이도, 효율성, 위양성률, 위음성률을 살펴 보면 흉부 X-선의 경우 각각 69.2%, 87.1%, 83.0%, 12.9%, 30.8%; 항산성 염색의 경우 79.9%, 95.5%, 91.8%, 4.6%, 20.5%; 배양의 경우 56.4%, 99.2%, 89.5%, 0.8%, 43.6%; PCR의 경우 82.1%, 96.2%, 93.0%, 3.8%, 17.9%였다. PCR의 경우 가장 높은 민감도 및 효율성과 가장 낮은 위음성률을 보였다. 배양법은 가장 높은 특이도와 가장 낮은 위양성률을 보였다. 결론적으로 PCR은 결핵 진단을 위한 신속하고 효율적인 우수한 검사 방법이므로 일상적 임상 검사로의 활용가치가 매우 높다고 하겠다. 그러나 전통적인 여러 방법들 역시 임상상황에 따라 그 나름대로의 특별한 가치를 지니고 있으므로 철저한 정도관리를 통해 PCR과 병행한다면 결핵균 검출율을 보다 높일 수 있으리라 판단된다. In recent years continuously increasing number of tuberculosis (TB) cases due to the emergence of strains with multidrug resistance and AIDS is a significant global health problem. Therefore, more rapid and reliable diagnosis of TB may be one of the most urgent needs in efforts to eradicate the disease. The present study was designed to compare and assess the diagnostic values and efficiencies between the conventional methods (X-ray, AFB stain and culture) and PCR for pulmonary TB on 171 cases. Chest X-ray finding and clinical features revealed that 39 (22.8%) of 171 sputum specimens were pulmonary TB cases. The statistical data were taken on the basis of the definitive diagnosis: In X-ray, overall sensitivity, specificity, efficiency and false positive and false negative incidence was respectively 69.2%, 87.1%, 83.0%, 12.9%, and 30.8%; 79.5%, 95.5%, 91.8%, 4.6% and 20.5% in AFB-stain; 56.4%, 99.2%, 89.5%, 0.8% and 43.6% in culture; 82.1%, 96.2%, 93.0%, 3.8% and 17.9% in PCR. PCR got a highest sensitivity and efficiency as well as a lowest false negative incidence. Culture had a highest specificity with a lowest false positive incidence. These results imply that PCR assay is fast, sensitive and efficient method for diagnosis of pulmonary TB. However, combined use of the conventional methods wish thorough quality control may offer more opportunities for detecting Mycobacterium tuberculosis and diagnosting TB although they have some limits.