요추관 협착증 환자에서 단순 요추방사선 촬영의 진단적 가치에 관한 통계학적 연구

남형우,이동배 충남대학교 의과대학 지역사회의학연구소 1986 충남의대잡지 Vol.13 No.1

To evaluate the diagnostic advantages of simple lumbar X-ray and clinical features on the lumbar canal stenosis patients, we conducted the study upon the 40 lumbar canal stenosis patients, who were treated at the department of neurosurgery in a general hospital in Seoul, from January 1980 to October 1984. The results of the study were as follows: 1. Of the total 40 patients, the sex ratio was nealy 1, most patients were over forty, and 62.5% of them have been suffered from illness more than one year. 2. Main symptoms and signs were radiating leg pain, backward bending limitation, intermittent claudication motor weakness, in that order. 3. The frequent narrowing vertebral level was L_4~5, as 85.0%. 4. On simple lumbar X-ray, the anteroposterior of spinal canal was 4mm in diameter shorter in patient group, contrast with normal control group. But that was 3mm shorter in interpedicular distance. The difference of diameter and distance were statistically significant. 5. The main myelographic findings were complete and almost complete block, the levels were the site disc space.

맹출장애가 있는 하악대구치의 임상적 관리

손우성,이해경,남형진,강상욱,송효경,김성식 부산대학교 병원 암연구소 2009 부산대병원학술지 Vol.- No.25

실리카흄을 흔입한 고강도 콘크리트 개발

홍창우,김태경,김경진,김성환,김남윤,심도식,이정호,윤청호,백민경,원치문,박제선,이주형,정경일 강원대학교 석재복합신소재제품연구센터 1996 석재연 논문집 Vol.1 No.-

콘크리트 구조물이 대형화됨에 따라 설계단면이 증대되어 상대적으로 많은 경제적 손실을 부담하게 된다. 따라서 단면을 감소시키면서도 소요의 하중에 안전한 구조물을 건설하기 위해서는 우선적으로 구조물 건설에 기초가 되는 고품질, 고내구성의 고강도 콘크리트 개발이 절실히 요구된다 본 연구에서는 일정 시멘트비 및 혼화재 비율하에서 소요의 워커빌리티가 확보되는 고강도 콘크리트를 시간과 온도의 변화에 따라 증기 양생하여, 압축, 인장, 휨강도 뿐만 아니라 파괴특성을 실험적으로 연구하였다. 시료 제작시 시멘트 입자 사이의 공극 및 불연속 영역을 충전하여 고밀도화하기 위한 콘크리트용 혼화재로 시멘트 비표면적이 상당히 작은 초미립 분말인 실리카흄을 이용하였다. 또한 AE감수제 및 고성능 유동화제를 사용하여 혼화재의 첨가에 의하여 발생될 수 있는 워커빌리티의 감소를 방지하였다. 실험결과에 의하면 일정 양생 지속 시간하에서 온도의 증가에 따라 콘크리트의 압축, 인장 및 휨강도가 전반적으로 증가하였다. 동일하게 일정 온도하에서 양생 지속시간이 커짐에 따라 강도들이 증가됨을 알 수 있었다. 따라서 상대적으로 높은 온도와 긴 지속 양생 조건하에서 파괴에 대한 저항력이 크게 나타났다. The compressible, tensible, and flexibleresistance of the high strength concrete is analyzed by the experimentation in the present study. For the test, we cure several samples with the silica fume as a mixture being become dense the spaces between the particle of cement under the variation of both the temperature and the curing-interval. Then, the superplasticizer and the ezcon are also used to satisfy the required workability for construction. The compressible, tensible, and flexible resistances to a stress are increased as increasing the temperature and the time interval for the curing. Therefore it is concluded that the overal fractural and mechanical properties is improved by mixing the silica fume into the cement.

春川市 近隣生活圈 構成에 關한 硏究 : Focused on the Primary School Attendanced Area 國民學校 通學區域을 中心으로

김남각,한기원,남형우,이상영,김충섭 江原大學校 産業技術硏究所 1994 産業技術硏究 Vol.14 No.-

Neighborhood living boundary plan is offerd amenity living environment to inhabitants. This plan is contained that district unit division, appropriate living facilities disposition, and that one of the urban elementary plan in city political activities. The theme is on the primary School attendanced area in chun-cheon city, and analysis school attendanced area as an administrative district.

각국의 경찰부패통제제도에 관한 비교 연구

이황우,남형수 동국대학교 사회과학연구원 2008 사회과학연구 Vol.15 No.1

Although the South Korean government has for a long time exerted to prevent and control corruption of public officials, it seems still pervasive in South Korea. The corruption scandals of the police are also considered a part of this social problem. For example, the extent of police corruption cases has been reduced since the National Police Agency in South Korea vigorously implemented anti-corruption policies and attempted to clean its organization. However, it is seemed that police corruption still remains in the particular divisions in a police department, such as investigation bureau, order maintenance team, and so forth, in which the officers frequently make contacts with citizens in a daily manner. For citizens, police corruption is perceived as a barometer of corruption of public officials since the police department is a frontline entity of law enforcement agencies. Police corruption undermines police accountability and legitimacy of law and authority. In order to enhance citizens' confidence of the police, it is inevitable to establish effective policies and measures to prevent police corruption. This study, by comparing diverse anti-corruption policies of the police across countries, aims to suggest a new systemic control model of police corruption 1) enhancing the education of police ethics, 2) improving police culture, 3) encouraging self-cleaning activities by a practical evaluation, 4) considering the settlement of systemic innovation, 5) establishing an anti-corruption system, and 6) encouraging citizen participation. 정부에서는 그동안 공직부패 척결을 위하여 범정부차원에서 다양한 정책적 노력을 기울여 왔으나 여전히 부패가 만연한 나라라는 오명을 벗지 못하고 있다. 경찰도 예외는 아니라서 강력한 부패근절방안과 조직 차원의 지속적인 자정노력으로 경찰부패가 많이 사라졌지만, 아직까지도 사건수사와 풍속업무분야 등 대민접점부서에서의 비리는 완전히 근절되지 않고 있다는 평가를 받고 있다. 경찰은 최일선의 법집행기관으로서 경찰부패는 국민이 피부로 느낄 수 있는 공직사회 부패의 바로미터로 인식되고 있다. 이러한 경찰부패는 법집행력의 약화를 초래하게 되고, 법을 집행하는 경찰이 법을 어기거나 제대로 집행하지 않는 다면 법과 권위를 스스로 깨뜨리는 행위가 된다. 따라서 국민으로부터 신뢰받는 경찰이 되기 위해서는 경찰의 부패방지대책을 수립하는 것이 급선무라고 생각한다. 이에 이 연구에서는 각국의 경찰부패통제제도를 비교 분석하여 보다 근본적이고 새로운 경찰부패통제시스템의 도입방안으로 경찰관의 윤리교육 강화, 조직문화의 개선, 실질적 평가를 통한 자율적인 부패방지 노력, 제도적 개선사항의 정착화 방안의 강구, 조직의 반부패시스템 구축, 시민참여제도의 강화 등을 제시해 보았다.

복합레진의 중합 수축력과 수복물의 결합양상에 관한 연구 제 1 편 : 중합수축력

박남수,최대균,임호남,최부병,우이형 大韓齒科器材學會 1993 대한치과재료학회지 Vol.20 No.1

The polymerization contraction forces has a relationship with the contents of filler, and if forces surpass the bond strength between restoration and bonded surface, the failure of bond can be occured. This study was designed to evaluate the effects of filler contents on the polymerization contraction forces and to confirm whether the polymerization forces could induce the bond failure of composite resins to enamel or dentin. Low capacity load cell using strain gauge were prepared and used as a measurement system for polymerization contraction forces. Oxidized alloy surfaces, enamel surfaces and dentin surfaces were used as bonded surface. Measurements of the polymerization contraction forces were done for 1 hour, and a stress at 1 hour after was recorded as a polymerization contraction force. It was considered as a bond failure that the polymerization contraction forces increased and then decreased by the time. The following conclusions were drawn : 1. Polymerization contraction forces of composite resins were decreased by the increase of filler contents. 2. Polymerization contraction forces were increased at thickened resin specimens, but it was not significant at over two millimeter thickness. 3. Bond strength of composite resins to the acid etched enamel surfaces exceeded the polymerization contraction forces and the reduced polymerization contraction forces due to the bond failure were not confirmed. 4. Failure of bond and reduced polymerization contraction forces occured on dentin.

복합레진의 중합 수축력과 수복물의 결합양상에 관한 연구 제 3 편 변연누출과 틈새

박남수,최대균,임호남,최부병,우이형 大韓齒科器材學會 1993 대한치과재료학회지 Vol.20 No.2

This study was designed to confirm the influence of the polymerization contraction stress to the marginal leakage and gaps of resin restorations. Ten kinds of experimental composite resins were prepared with varing the filler contents to display the different polymerization contraction stress. A cavity with enamel and dentin margins were prepared on the cervical area of human tooth. Enamel margins were etched with 37% phosphoric acid for 1 minute. Experimental composite resins were filled into the cavities and immersed in water bath of 37±1℃ for 24 hours, and then immersed into dye solution. Tooth were cut through the restoration, and the infiltration of dye was observed. Marginal gaps were measured on the light microscope with 100 magnifications. The following conclusions were drawn : 1. Polymerization contraction stress and gaps showed the corelation between them, gaps were decreased by increase of filler contents. 2. There was not exist the relationships between polymerization contraction stress and marginal leakage. 3. Marginal leakage and gaps were larger at dentinal margins than enamel margins.

복합레진의 중합 수축력과 수복물의 결합양상에 관한 연구 제 2 편 결합강도

박남수,우이형,최부병,임호남,최대균 大韓齒科器材學會 1993 대한치과재료학회지 Vol.20 No.2

Failure of bond between resinous restorative materials and tooth can be occured by the polymerization contraction forces larger than bond strengths. This study was planned to confirmed that the bond strengths between composite resin and acid etched enamel will be influenced by the polymerization contraction forces altered with filler contents and diameter of attached resin specimens. Ten kinds of experimental composite resins were prepared and bonded to bovine tooth enamel which were acid-etched. The diameter of resin specimens attached were 4 mm and 6 mm. The following conclusions were drawn : 1. Shear bond strengths were increased and then decreased with rise of filler contents, maximum shear bond strength was obtained by the 40% filled composite resin. 2. Unit shear bond strengths of resin specimens bonded with large area were lower than that of narrow area bonding. It was concluded that shear bond strengths to acid etched enamel can be influenced by the polymerization contraction forces.

골격성 Ⅲ급 부정교합자의 전치부 수직피개도에 영향을 미치는 요소 - 개교군과 피개군간의 비교

정정화,남형진,강상욱,손우성 부산대학교 병원 암연구소 2009 부산대병원학술지 Vol.- No.25

간 세포암에서 VEGF, TGF-β1, b-FGF 발현의 의의

김성용,남충현,주종우,채만규,백무준,이문수,김형철,안현철,김홍수,김창진,김창호 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.1

Purpose: Angiogenesis is important for the proliferation and the metastasis of solid tumors. The growth of a solid tumor is widely recognized to depend on the process of neovascularrozation. Without angiogenesis, tumors cease to grow beyond even a few milimeters in diameter. It has been shown that tumor vascular density is an independent prognostic marker in several types of human tumors and is known to correlate with poor prognosis. To date, many angiogenic factors have been identified, such as transforming growth factor-α(TGF-α), transforming growth factor-β(TGF-β), fibroblast growth factor family(FGF), vascular endothelial growth factor(VEGF), platelet derived endothelial cell growth factor(PD-ECGF), tumor necrosis factor-α(TNF-α), and angiogenin. Hepatocellular carcinoma(HCC) is the second most common tumor in Korean males and is known as a typical hypervascular tumor with frequent portal vein invastion. The authors identified the expreesion of VEGF, TGF-β1, and b-FGF in HCC specimens and evaluated the relationship between these growth factors and the clinicopathologic characteristics of HCC. Method: We reviewed the medical records of 30 patients who were diagnosed as hepatocellular carinoma treated with hepatic resection between January 1994 and December 1998 in Soonchunhyang University Chunan Hospital. The selection of the cases was decided according to the condition of paraffin block fixation. The prognostic factors such as age, sex, tumor size, concentration of serum α-fetoprotein, presence of liver cirrhosis, presence of tumor emboli in portal vein, TMN stage, amount of transfusion during the operation, hepatitis B virus(HBV) infection, and Edmonson-Steiner(E-S) grade were investigated. Relationship between the prognostic factors and the immunopathologic expression of the TGF-β1, b-FGF, and VEGF was examined. Result: Thirty patients (24 males, 6 females) were included in the current study. The patient's mean age was 50.6 years and the age ranged from 36 to 65 years. The mean size of the tumor was found to be 5.2cm. All the patients were follewed up for 7 to 63 months. Child's classification A patients were 23(76.7%)cases, B patients were 7(23.3%)cases, and C was none. Immunohistochemical staining of HCC tumor mass in VEGF expression patients were 17(56.7%), b-FGF expression patients were 10(33.3%), and TGF-β1 expression patients were 10(33.3%). VEGF expression or more than one positive expression among the three factors correlated with tumor size and the stage of HCC but did not correlated with other clinicopathological characteristics. TGF-β1 and b-FGF did not correlate with any clinicopathological characteristics. Conclusion: The results suggest that the expression of VEGF or more than one positive expression among the three factors in HCC cells may be a significant prognostic factor of HCC.