간세포암과 감별이 어려웠던 악성중피종 치험 1예

김선문,허원석,채경훈,강윤세,정재훈,김연수,박기오,문희석,이엄석,김석현,성재규,이병석,이헌영,신경숙,조준식,송인상,강대영 충남대학교 의학연구소 2003 충남의대잡지 Vol.30 No.2

Malignant peritoneal mesothelioma is a rare neoplasm that arises from the mesothelium of a serosal cavity and is a rapidly fatal disease with a median survival of 4 to 12 months for untreated cases. Recently, we experienced a case with malignant peritoneal mesothelioma who was suspected hepatocelluar carcioma by abdominal CT scan and was confirmed by biopsy including immunohistochemical stain(calretinin) after surgery. We performed tumor excisions and wedge resection of the liver(segment Ⅷ)and inserted Tencoff catheter in abdominal cavity at 25th day of post-operation. We treated with intraperitoneal paclitaxel(25mg/m^(2)/day for 5 days) six courses monthly. She was well tolerable and is still living without any evidence of recurrence for 14th month of post-operation.

외국인직접투자(FDI) 활성화방안에 관한 소고

정헌용,김현석 남서울대학교 2004 남서울대학교 논문집 Vol.10 No.1

In this paper, I looked into the meaning and economic effect of foreign direct investment, and examined the present status of inward-foreign direct investment. I tried to find the cause of depression and also bring forth the activation plan of foreign direct investment in Korea.

폐질환환자의 동맥혈가스분석

현정애,김재룡,전동석 啓明大學校 醫科大學 1986 계명의대학술지 Vol.5 No.2

Arterial blood gas anlysis has been established as an important aid to diagnosis, therapy, and prognosis in pulmonary diseases. Authors analyzed the results of arterial blood gas analysis of 136 pulmonary disease patients requiring oxygen therapy at the emergency room. In patients with chronic obstructive pulmonary disease, the findings are consistent with respiratory acidosis, PCO₂being abnormally high in 53.3% of the cases and PO₂below 80mmHg in 88.9%. In patients with bronchial asthma, the PO₂levels were higher than ones with chronic obstructive pulmonary disease but the results of remaining parameters were essentially similar. The patients of lung cancer were significantly iincreased in pH, comparing with ones of other pulmonary diseases (p<0.005), and significantly fell in PCO₂comparing with ones of bronchial asthma (p<0.01).

주행속도에 따른 부상마그네트의 특성을 고려한 상전도 자기부상시스템의 부상제어에 관한 연구

玄東石,洪正杓,鄭因城,許眞,尹相伯 창원대학교 공작기계기술연구센터 1999 연구업적집 Vol.1 No.1

A collective controller for electromagnetic suspension (EMS) system considering the speed characteristics of electromagnets is presented. The speed characteristics of the electromagnet are analyzed by finite element method (FEM) and Neural Network algorithm is used for the controller considering speed. The proposed controller is examined and the dynamic characteristics are compared with those of other controllers. The simulation results show that proposed controller has a better performance at high speed.

맹출 장애를 가진 상악 제1대구치의 외과적 노출을 이용한 치험례

석충기,남동우,김현정,김영진,남순현 大韓小兒齒科學會 2004 大韓小兒齒科學會誌 Vol.31 No.1

치아의 맹출이란 구강내로 치아가 출현하기 전의 악골 내에서의 이동, 구강에 출현하여 교합면에 이르기까지의 이동, 그리고 교합면 도달이후의 추가적인 이동 등 모두를 포괄적으로 의미하는 용어이다. 맹출은 대부분 유전적으로 결정되며 치아가 성장 발육 과정에 따라 구강내로 맹출되는 과정은 preeruptive alveolar bone stage, alveolar bone stage와 mucosal Stage로 구분할 수 있는데, 이들 과정의 어느 단계에서도 장애가 발생하면 치아가 맹출하지 않는다. 맹출 장애의 원인으로는 치배의 부정위, 정상 맹출로의 방해, 치낭 혹은 치주인대의 손상 등이 있다. 맹출 장애 치료에는 유치발거 및 맹출 공간확보, 외과적 노출, 외과적 정위, 외과적 노출 후 견인이 있고, 이 중 외과적 노출이 가장 기본적인 술식이다. 외과적 노출은 영구치를 둘러싸는 점막, 골, 병소, 경우에 따라 치낭 등을 제거하여 개방된 맹출로를 확보하는 것이고, 형성된 맹출로는 레진관(celluloid crown)의 접착, 거타 퍼챠 혹은 산화 아연 유지놀 시멘트, 치 주 포대 등을 노출된 부위 에 충전하여 개방성을 유지하여야 한다. 외과적 노출시에는 치경부 치근의 백악질을 노출시키지 않도록 하여야 하며, 인접치아의 치주 조직이나 치근의 손상도 피 해야 한다 또한 노출 후 치아는 각화된 치은에 위치하여야 한다. 외과적 노출 중에 가해진 손상의 정도는 치아의 병리, 생리 학적 이상의 발현에 영향을 미치므로 주의하여야 한다. 본 증례들은 상악 제1대구치가 맹출 장애를 가긴 증례들이었으며, 이를 개선하기위해 위의 사항을 고려하여 외과적 노출을 시행하였고, 맹출 장애를 효과적으로 개선할 수 있었다. The eruption of permanent teeth represents the movement in the alveolar bone before appearance in oral cavity, to the occlusal plane after appearance in oral cavity, and additive mevement after reaching th the occlusal plane. Tooth eruption is mostly controlled by genetic signals. The eruption stage is divided to preeruptive alveolar stage. alveolar bone stage, mucosal stage according to the process of growth and development. If the disturbance is occured in any stage of eruption, tooth does not erupt. The cause of eruption disturbance are eclopic position of the tooth germ, obstruction of the eruption path and defects in the follicle or PDL. In the treatment of eruption disturbance, surgical procedures are commonly used. There are three kind of surgical procedure surgical exposure, surgical repositioning, surgical exposure and traction Surgical exposure is basic procedure. This involves removal of mucosa, bone, lesion that are surrounding the teeth, dental sac when necessary to maintain a patent channel between the crown and the normal eruptive path into the oral cavity. To ensure this patency, many techniques including cementation of a celluloid crown, packing with gutta-percha or zinc oxide eugenol, or a surgical pack, are used. When surgical exposure is conducted, operators should not expose any part of cervical root cement and not in jure periodontium or root of adjunct tooth. After surgical exposure, tooth should be surrounded by keratinized gingiva. There is direct relationship between the extent of development of pathophysiologic aberrations and the intensity of the manipulative injury inflicted on the tooth by surgical treatment, so operator should consider this thing. In these cases surgical exposure is conducted on Maxillary 1st milars that have a eruption disturbance and improve the eruption disturbance effectively.

비만을 동반한 위암 환자에서 두 병을 같이 수술 치료한 경험(증례)

최경현,윤기영,문형환,신연명,서경원,안수미,송윤미,석정희,정경연,이은하 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.3

Obesity is growing problem in Korea. We had a case of bariatric surgery during gastric cancer operation. Patient was 29 year old Korean lady with early gastric cancer located in the lesser curvature side of the middle 1/3 of the stomach. Her body weight was 89 kg, height 163 cm, and thus body mass index was 33.5 kg/m2. Preoperative blood pressure was 130/90 mmHg, hemoglobin 12.9 g/dL, total lymphocyte count 3,280/mL, serum albumin 4.3 g/dL, CEA 1.1 ng/mL, CA 19-9 9.1 ng/mL, and alpha fetoprotein 2 ng/mL. Another associated disease was right thyroid follicular neoplasm. The chest X-ray was normal. After IM injection of 2,500 units of heparin 30 minutes before the induction of general anesthesia, she received curative subtotal gastrectomy and Roux en Y gastrojejunostomy when a malabsorption loop of 120 cm jejunum was incorporated between the Treitz ligament and the end to side jejuno-jejunostmy site at May 29th 2006. Her postoperative course was uneventful except a minor wound seroma and the elevations of serum amylase(up to 4 folds) and lipase(up to 2 folds). She lost her body weight 9 kg in 5th, 21 kg in 7th, and 27 kg in 10th postoperative months to became 61.5 kg. On follow up exams in July 2008, she gained 4 kg to overcome her weakness and fatigue. From the above result, the incorporation of a malabsorption loop during reconstruction phase of gastric cancer operation was a good option for obese gastric cancer patients especially in cases of early gastric cancer.

한우 성별에 따른 등심의 육질특성 비교

최정석, 정동순, 최석현, 이상화, 김종희, 최양일 忠北大學校 農業科學硏究所 2011 農業科學硏究 Vol.27 No.4

-본문참고-

안구의 비색소성 모양체 상피에서 발생한 유두상 선암종 -1예 보고-

최현주,최영진,이연수,이은정,강석진,김병기,심상인 대한병리학회 1998 Journal of Pathology and Translational Medicine Vol.32 No.12

Excel VBA를 이용한 정보시스템 구축에 관한 연구 : 소규모 부품 제조업 사례

정현석,김태훈 동의대학교 경제경영전략연구소 2010 經濟經營硏究 Vol.5 No.1

With the development of Information Technology, many companies are investing much efforts and resources in introducing an information system in order to increase their productivity and to achieve a competitiveness in the market. However, small size companies(less then 50 employees) which share 99% of whole domestic business are suffering many difficulties in constructing an information system. It comes from the development cost and the difficulty of maintenance. This research is concerned about the methodology for building information system for small size organization by using Excel VBA(Visual Basic for Application). By using the methodology proposed in this research, a company may construct a proper information system for its own organization. It was observed that much time to construct and maintain the information system could be saved. And it is believed that the proposed methodology may contribute in achieving high efficiency in management for small size company that lacks human resources and suffers the shortage of fund.

수 종의 복합레진 접착 시스템에서의 미세 누출의 비교

석충기,남동우,남순현,김영진,김현정 大韓小兒齒科學會 2004 大韓小兒齒科學會誌 Vol.31 No.4

최근 자가 부식형 접착 시스템이 개발되어 법랑질 및 상아질에 모두 적용할 수 있고, 임상적 술식을 단순화 시켰다. 이 접착 시스템은 적용하기 용이하고 임상적으로도 법랑질 및 상아질에 높은 결합강도를 보인다고 보고되고 있다. 이 연구는 in vitro 상에서 복합레진 5급 와동의 법랑질 및 상아질 경계에서 전부식 처리를 동반한 one-bottle 접착시스템과 자가 부식형 접착 시스템을 사용하였을 때 미세 누출을 비교하기 위해 시행하였다. 교정적 목적으로 발치된 30개의 소구치를 무작위적으로 3개 군으로 나누었다; 1 군 (Single Bond^(�) + Filtek Z250^(�)), 2 군 (Clearfil SE Bond^(�) + Filtek Z250^(�)), 3 군 (Adper Prompt L-Pop^(�) + Filtek Z250^(�)). 표준화된 5급 와동을 각 소구치 협면, 설면에서 백악-법랑경계에 평행하게 형성하였으며, 와동의 치은측 1/2은 백악-법랑경계보다 1mm 치근단으로 연장하였다. 접착 시스템을 제조자의 지시대로 적용한 다음 복합레진을 충전하고 제조자의 지시대로 광중합하였다. 시편을 37℃ 증류수에 5일 간 보관 후 5℃±2℃ 와 55℃±2℃에서 1000회 열순환한 다음, 2% methylene blue 용액에 12시간 침잠시켰다. Isomet^(TM) (Buehler Co., Lake Bluff, IL, USA)을 사용하여 치아를 충전물 중앙에서 종절단한 후 입체 현미경하에서 25배의 배율로 색소 침투도를 평가하였다. 결과는 t-test 와 one-way ANOVA를 이용하여 통계처리 하였다. 결과는 다음과 같았다. ·실험에 사용 된 접착 시스템 중에 미세 누출을 완벽하게 방지하는 접착 시스템은 없었다. ·상아질 경계에서의 미세 누출이 법랑질 경계에서보다 통계학적으로 유의하게 더 많았다(p<0.0001). ·법랑질 경계에서 자가 부식형 접착 시스템은 전부식 처리를 동반한 one-bottle 접착 시스템과 통계학적으로 유의한 차이를 보이지 않았다. ·상아질 경계에서, 자가 부식형 접착 시스템은 전부식 처리를 동반한 one-bottle 접착 시스템과 통계학적으로 유의한 차이를 보이지 않았다. Recently, self-etching adhesive system have been developed and bonding procedures simplified into one or two steps, which are simultaneously applied to both enamel and dentin. These systems are easy to use and have the potential for good clinical success. The purpose of this study is to evaluate in vitro the microleakage on the cementum/dentin and enamel walls in composite resin restoration of Class V cavities, regarding the use of different adhesive systems. 30 human premolars were divided into 3 groups. A standardized Class Ⅴ preparation was prepared on the buccal and lingual surface of each premolar. The preparation were made parallel to the cementoenamel junctions, with the gingival half of the preparation extending 1mm apical to the cementoenamel junction. After adhesive system was applied to teeth as manufacture's recommendation, hybrid resin composite was filled in bulk into the preparation and light polymerized according to manufacturer's recommendations. Specimen were stored in distilled water at 37℃ for 5 days and thermocycled 1000 times (5℃+2℃ and 55℃±2℃), then immersed in a 2% methylene blue solution for 12 hours. After sectioning mesio distally through the restorations, the degree of dye penetration was scored under a stereomicroscope at × 25 magnification. The data were analyzed statistically using t-test and one-way ANOVA. The results were as follows: · There is no adhesive system which can prevent microleakage perfectly. · There is significant difference in microleakage between enamel margin and dentin margin (p<0.0001). · In enamel margin, self-etching primer systems did not show any significant difference comparing total-etching system. · In denin margin, self-etching primer systems did not show any significant difference comparing one-bottle adhesive system used in combination with total-etching.