악교정 수술후에 발생한 술후성 상악낭종의 치험례

김종국,김선용,최용석,이충국 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.1

The postoperative maxillary cyst develops as a delayed complication after surgical intervention or Caldwell-Luc operation in the maxillary sinus and was also reported that it could occur after Le Fort I osteotomy. This is also called as surgical cliated cyst because of its lining epithelium is usually lined by a pseudo-stratfied ciliated columnar epithelium. This report represents a case of postoperative maxillary cyst which developed within the anterior of maxilla and in association with nasal mucosa 6 years after a Le Fort I osteotomy. In 1989, 26-year-old male complained of his mandibular prognathism and underwent orthogmathic surgery, Le Fort I osteotomy, bilateral sagittal split ramus osteotomy, partial glossectomy.

65세 이상의 노령층에서 고지혈증의 위험요인

김용배,장원기,황보영,김화성,안규동,이병국,이용진,김세훈,김승수,김승훈,김영록,김웅빈,이성수 순천향의학연구소 2006 Journal of Soonchunhyang Medical Science Vol.12 No.1

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헬리코박터 파이로리 균 진단용 ^13C-요소 캅셀의 개발

용철순,김용일,김지만,강성훈,권기철,이종달,김종국,사홍기,최한곤 영남대학교 약품개발연구소 2002 영남대학교 약품개발연구소 연구업적집 Vol.11 No.-

The purpose of this study was to develop a new ^13C-urea-containing capsule for diagnosis of H.pylori. The urea-containing capsules were prepared with various diluents such as polyethylene glycol (PEG), microcrystaline cellulose, sodium lauryl sulfate and citric acid. The dissolution test, ^13C-urea breath test and stability test were then performed on the capsules. Microcrystalline cellulose and sodium lauryl sulfate retarded the initial dissolution rates of urea. However, PEG increased the initial dissolution rates of urea. Furthermore, two formulae composed of PEG,[^13C-urea/PEG (38/1.9 mg/cap)] and [^13C-urea/PEG (38/1.9/1.9 mg/cap)] had the maximum DOB value. about 16 at 20 min, while the formula composed of only 38 mg ^13C-urea had the maximum DOB value at 30 min. The results indicated that PEG improved the sensitivity of ^13C-urea in the human volunteers. The capsule [^13C-urea/PEG (38/1.9 mg/cap)] was stable for at least six months in 25 and 37℃. Thus, a PEG-containing capsule, [^13C-urea/PEG (38/1.9 mg/cap)] would be a more economical, sensitive and stable perparation for diagnosis of H. pylori.

만 5세 유아들의 쌓기놀이에서 수행된 수학활동에 대한 문화기술적 연구

국지윤,홍용희 이화여자대학교 교과교육연구소 2006 교과교육학연구 Vol.10 No.2

본 연구는 유아들이 쌓기놀이에서 수행하는 수학활동 내용과 수학활동에 영향을 미치는 요인을 알아보기 위하여 만 5세 유아들의 쌓기놀이를 문화기술적 연구방법을 통하여 고찰하였다. 연구 결과 유아들은 쌓기놀이에서 분류, 서열, 수세기, 전체와 부분, 측정, 공간과 기하, 패턴 등의 수학 활동을 수행하였다. 쌓기놀이에서 나타난 각각의 수학활동은 상황에 따라 매우 다양하고 복합적인 형태로 나타났다. 유아의 수학활동에 영향을 주는 요인으로는 수학적인 배율로 제작된 놀이감의 특징, 놀이주제, 성별, 또래참여, 교사개입 등으로 나타났다. 본 연구는 쌓기놀이 영역뿐만 아니라 여러 흥미영역에서의 유아수학활동 및 이에 영향을 미치는 요인에 대한 관심과 연구의 필요성을 시사해준다. This study investigated the contents of math activity carried out by young children in block-play and the factors influencing on their math activity through ethnographic research methodology. The study shows that young children conducted various math activities: classification, order, counting, whole and parts, estimation, space and geometry, and pattern. Each one of the math activities was appeared to be diverse and compound in terms of format according to situations. The factors influencing on young children's math activity were the characteristics of block-play materials made out of mathmatical magnification, block-play themes, gender, peers' participation, and teachers' intervention. The results suggest that further research on the contents of math activity conducted by young children and the factors influencing on math activity at the other interest areas as well as the block-play area are needed.

외상성 횡격막 손상

안성국,이상목,이기형,고석환,김용호,박호철,고영관,조규석 대한응급의학회 1995 대한응급의학회지 Vol.6 No.1

Fifty two cases of traumatic diaphragmatic injuries that we have experienced from Jan. 1973 to Oct. 1994 were evaluated. The following results were obtained. The age of the patient was ranged from 1 to 74 years. Male was 38 and female was 14 in number with a ratio of 2.7 : 1. The traumatic diaphragmatic injuries were due to blunt trauma in 35 cases(motor vehicle accident 25, fall down 8, press 1, kick by fight 1) and penetrating trauma in 17 cases(stab wound 15, shot wound 1, explosion 1). In the blunt trauma, the preoperative diagnosis of the diaphragmatic injury was possible in 25 out of 35 cases(71%) and in the penetrating trauma, 15 out of 17 cases(88%). In the blunt trauma, the repture site was located in the left in 22 cases(63%) and in the right in 13 cases(31%). In the penetrating trauma, the rupture site was located in the left in 9 cases(53%) and in the right in 8 cases(47%). In the blunt trauma, 20 cases(63%) were treated within 24 hours and in the penetrating, 15 cases(88%) within 24 hours. In the blunt trauma, the herniated organs into the thorax were stomach(7), omentum(6), spleen(6), liver(5), colon(4), small bowel(2) and in the penetrating, stomach(7), colon(6), omentum(3), liver(2), and spleen(1) were herniated. Injury severity score(ISS) of 35-blunt trauma ranged from 11 to 66 with mean value of 30.6. Mean ISS of survivors and nonsurvivors was 27.6 and 52.7 respectively. The diaphragmatic repair of 49 cases was performed with thoracic approach in 23 cases, thoracoabdominal approach in 7 cases and abdominal approach in 19 cases, and 3 cases were not operated. The postoperative complication and mortality were developed in 16 out of 49 cases(33%) and in 5 cases(9.6%) respectively, and the causes of death were hypovolemic shock(1), combined head injury(2), asphyxia(1), and pulomnary edema and renal failure(1). In conclusion, the injuries of the diaphragm should be suspected in all patients with severe blunt trauma or penetrating injuries at thorax and upper abdominal area near the diaphragm. All of the cases had associated injury and most of deaths were related to the severity of associated injuries.

MAKING IN VIVO MODEL TO STUDY ABOUT HUMAN ORAL CANCER (I)

박형국,김용각 大韓顎顔面成形再建外科學會 1997 Maxillofacial Plastic Reconstructive Surgery Vol.19 No.3

편평상피세포암종은 악성종양 중 가장 중요한 비중을 차지하고 있는 암종이다. 하지만 편평상피세포암종의 세포주는 다른 악성종양에 비하여 아직까지 많이 개발되어지지 않았다. 또한 동물실험모델을 만들기 위한 이종이식에 있어서 편평상피세포암종은 매우 낮은 생착율을 보이고 있다. 구강암 중에서도 편평상피세포암종은 가장 많은 부분을 차지하나, 개발된 세포주는 그리 많지 않으며, 더 더욱이 동물실험 모델의 제작은 쉽지 않아, 새로운 치료 약제의 개발이나 치료 방법 개발 등에 많은 제약이 있어왔다. 본 실험에서는 수종의 구강 편평상피세포암종의 세포주를 배양하였고, 특별히 고안된 사육시설을 이용하여 BALB/C nude mice를 사육하였다. 여러 농도의 구강암 세포주를 nude mice의 등에 피하로 이식하였다. 어떤 세포주는 계속적인 성장을 보였으나 어떤 세포주는 완전히 흡수되기도 하였다. 5주 이상을 관찰하였으며, 이식된 종양의 크기를 측정하고, 부피를 계산하였다. 또한 또 다른 동물모델의 제작 방법으로서 특별히 고안된 cap을 nude mice의 등에 이식하고, 그 안에 구강암 세포주를 배지와 함께 이식하였으며, 1주 후에 cap을 제거하였고, 4주 이상을 관찰하였으며, 성장하는 종양의 모습과 크기를 관찰하였다. 본 연구는 구강암 연구에 적절한 동물실험모델을 개발하여 다른 악성종양에 비해 동물실험적으로 연구할 기회가 적었던 구강암 영역의 연구를 활발히 하며, 향후 한국인의 구강암연구에 가장 적절한 동물실험모델을 개발하여, 보다 진보된 구강암 치료방법의 개발 및 신약 등의 개발에 이용하기 위함이다.

經營上必要한 資本에 관한 考察 : 計算利子算出의 一要因으로서

張龍國 단국대학교 산업연구소 1985 산업연구 Vol.8 No.-

접촉각 측정으로 본 표면 장력 관련 교육 내용 및 고등학교 학생틀의 이해 분석

최종국,박용남,백성혜 韓國敎員大學校 敎育硏究院 2009 敎員敎育 Vol.25 No.4

이 연구에서는 극성 액체인 물, 에탄올 및 비극성 액체인 사염화탄소를 극성 표변인 유리와 비극성고체인 PVC와 테플론판 위에 떨어뜨린 후 접촉각을 측정하고, 액체 증기, 고체 증기, 및 고체-액체의 경계간의 자유에너지 (□_(LV), □_(SV), □_(SL))와 표면장력을 계산하였다. 접촉각의 크기는 액체의 종류 또는 표면장력 뿐 아니라, 고제 판의 특성에 따라서도 달라진다는 것을 확인하였다. 또한, 접촉각의 크기는 액체의 표면 장력의 크기와 반드시 일치하지는 않았다. 7차 교육과정의 ‘화학 I’ 교과서 8종과 여러 평가 문항들을 분석한 결과, 접촉각과 표면 장력의 크기를 단순히 분자 간 인력에 따라 비례하는 것으로 표현하는 경우가 있었고, 교육과정에서 요구하는 수준을 념거나 현실적으로 관찰되지 않는 상황을 제시하는 경우도 있었다. 고등학교 학생들은 접촉각 표면장력 그리고 분자간 인력에 관련된 이해가 부족한 것으로 나타났다. Interfacial free energies(□_(LV), □_(SV), and □_(SL)) were calculated from the measured contact angles between various solid surfaces and liquids. Polar liquid, water and ethanol, as well as non-polar liquid such as carbon tetrachloride were examined on the polar surface such as glass as well as non-polar surface PVC and Teflon. The contact angle showed dependence on characteristics of both liquids and solid surfaces. More importantly, the order of contact angle did not agree with that of surface tension From the analysis of 8 types of 'Chemistry l' textbooks and several assesment items, the errors are found that the contact angle and surface tension are proportional to intermolecular interaction. In some cases, the required knowledge is above current educational level or some unrealistic situation is used as an example. The high school students are appeared to be incomprehensible to complex relationships between contact angle, surface tension, and intermolecular interactions.

病院勤務者의 後天性免疫缺乏症에 關한 認識度 調査硏究

林國煥,金榮煥,金順德,柳樂姬,洪景蘭 高麗大學校 倂設 保健大學 保健科學硏究所 1991 保健科學論集 Vol.17 No.1

Recently HIV infection has been increasing in Korea and recognized as one of the serious social problems. In the current situation in which any effective treatment or preventive vaccine for AIDS has not yet been invented, the most important method of control to reduce the chances of HIV infection is through the continuous education about AIDS. Hospital workers are one type of group which are at a high risk for HIV infection and to some degree resposible for the transmission of AIDS. This study was carried out to provide data to help educate hospital workers prevent the AIDS transmission. For this study, 409 workers from 18 hospitals in the Seoul area were asked to answer the questionaire. The results obtained are as follows : 1. Most respondents (97.8%) knew that AIDS is Acquired Immune Deficiency Syndrome. And 85.6% of respondents knew exactly (71.4%) or roughly (14.2%) about the general characteristics of AIDS. 2 . 68.6% of the respondents knew the route of HIV infection. A lot of people thought that one could be infected by AIDS through utensils, foods, coughing or sneezing. 3. Respondents with high education knew relatively well about the causes of AIDS, compared with those with low education. Males generally understood the characteristics about AIDS better than females. As for the age group, the people in their thirties knew more than those in any other age group. Whereas average income amount, marrige status, or overseas travel experience showed no correlationship with the knowledge about AIDS. 4 . It was observed that males(36.5%) had more experience wity blood donation than females (8.8%) . 83.8% of females thought that they need not take the blood test to be examined for HIV infection, which was higher compared to the 62.3% of males. 5. Mass communication was the main source to provide the information about AIDS for the respondents. Most of the respondents hoped that the hospital where they worked or any other clinic would provide them with more detailed information about AIDS. 92.8% of the respondents insisted that AIDS patients should be isolated to prevent the AIDS transmission.

交通量과 騷音

朴容厚,金炯局,朴德智 國立保健硏究院 1967 국립보건연구원보 Vol.4 No.-