골반과 하지운동이 편마비 환자의 보행에 미치는 영향

최진호,김영록,권혁철 한국전문물리치료학회 1997 한국전문물리치료학회지 Vol.4 No.1

실시간 분광 엘립소메트터를 이용한 a-Si박막의 crystallization현상 연구

오영록,최은호,이기용,방경윤,안일신,김옥경 한양대학교 이학기술연구소 2004 이학기술연구지 Vol.7 No.

실시간 측정과 in-situ 측정을 하기 위해 실시간 분광 엘립소메트터 (real-time spectroscopic rotating compensator ellipsometer) 를 제작 방법을 연구하였다. 높은 온도 에서 얻어지는 Poly-Silicon은Glass에 변형이 생기므로 저온에서의 Poly-Silicon을 만들기 위하여 ni기판에 a-Si 박막을 성장 시킨후 그위에 투명전극을 올려 300℃ 이하의 저온에서 Ni과 투명전극에 전기장을 걸어 주었을때 a-Si이 Poly-Silicon 으로 바뀌는 crystallization 현상을 직접 제작한 ellipsometer 를 이용하여 실시간으로 관찰하였다. We make real-time spectroscopic rotating compensator ellipsometer for real time measurement and in-situ measurement. We study a method to make Poly silicon after depositing amomhous silicon thin film by dc sputter system at different temperature and pressure. Amorphous silicon films of 30㎚ thickness were deposited on the Ni substrate, and then ITO films of 20㎚ thickness were deposited on the a-Si films. The sampie were crystallized below 300℃ in the electric field applied between the Ni and ITO.

관동맥풍선시술중 혈전동반 병변에 대한 구조치료(Rescue Utilization)로서의 Abciximab(ReoPro^(�)의 효과

두영철,채경수,최종형,허필석,송관욱,홍경순,박대균,한규록,오동진,유규형,임종윤,고영박,이광학,이영 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.12

만성 활동성 간염에 있어서 Ursodeoxycholic acid의 치료효과

김성록,안병철,윤영미,탁원영,곽규식,최용환,정준모 慶北大學校 醫科大學 1991 慶北醫大誌 Vol.32 No.4

The purpose of this study is to evaluate the clinical and biochemical effects of SGD-F^(R)(UDCA, Vitamin B_1, Vitamin B_2 complex) in chronic active hepatitis. Observed cases were given orally after each meal(three times a day) for 4 weeks. The results were as follows: 1. Among subjective symptoms, improvement rate showed in easy fatigability 86.7%, anorexia 68.0%, indigestion 80.0%, nausea and vomiting 72.7%, RUQ pain 83.3%. 2. Biochemical parameters such as SGOT, SGPT, showed to be improved significantly after the 4 weeks treatment.(p<0.01) 3. There was no specific side effect during the study period in all cases. In conclusion, SGD-F^(R) capsule may be safe and effective for chronic active hepatitis.

광주의 한 이차병원에서 조사한 결핵약제 내성과 관련인자

조준호,김강,최상철,이경록,정종필,고영춘 朝鮮大學校 附設 醫學硏究所 2008 The Medical Journal of Chosun University Vol.33 No.3

연구목적: 우리나라의 결핵약제에 대한 내성은 지속적으로 감소되고 있음에도 불구하고 여전히 적지 않은 환자를 보유하고 있는 상황에서 치료 실패의 중요한 요인이 되고 있다. 이에 결핵 내성률에 영향을 미칠 수 있는 인자들을 파악하고 이에 대한 예방 대책을 수립하는 것이 내성률 발생의 예방에 도움이 될 것으로 사료된다. 이에 저자들은 광주 소재의 한 2차 병원에서 결핵 약제 내성률 및 위험인자로 판단되는 요소들과의 상호관계를 조사하였다. 대상 및 방법: 2005년 3월 부터 2006년 2월 까지 광주 기독 병원 내과에서 치료받은 결핵 환자중 객담 결핵균 배양 검사상 양성으로 판명되어 약제 감수성 검사를 확인할 수 있었던 346명을 대상으로 의무기록, 면담 등을 통한 후향적 조사를 시행 하였다 결과: 346명중 한가지 이상의 약제에 내성을 보인 경우는 150명(43.4%)였고, 다제 내성 결핵은 72명(20.8%)였다. 조사 요인의 유무별로 약제 내성률을 조사하였을 때 흉부 사진의 침범 정도에 따른 약제 내성률 및 다제 내성률은 경증에서 36.3%와 6.2%, 중등도에서 36.1%와 22.6%, 중증에서 61.0%와 35.0%였다. 병변의 공동성 병변 유무에 따른 약제 내성률은 공동이 있는 군에서는 49.8%, 공동이 없는 군에서는 34.0%였다. 과거의 치료력 여부에 따른 약 제 내성률은 치료력이 없는 군에서는 19.7%였고, 치료력이 있는 군에서는 81.2%였다. 항 결핵제 복용의 규칙성 여부에 따른 약제 내성률은 규칙적 복용군은 31.7%, 불규칙적 복용군은 59.7%로 나타났다. 결론: 광주 소재의 한 2차 병원에서 조사한 약제 내성률 및 다제 내성률은 전국 평균치를 훨씬 상회하였다. 한편 과거 치료병력 및 약제의 불규칙 복용은 약제 내성률을 높이는 데에 기여하는 인자가 될 것으로 사료된다. 흉부방사선 사진 상의 폐 침범 정도, 공동성 병변의 존재도 약제 내성률 증가와 관련이 있는 것으로 보이나 보다 정확한 선후관계 분석을 위해서는 추가적인 전향적 연구가 필요하다. Background and objectives: Drug resistance is a major obstacle to the treatment of pulmonary tuberculosis (TB). This study was conducted to determine the prevalence of drug-resistant tuberculosis and its associated factors at a secondary hospital in Gwangju. Materials and Methods: A retrospective one-center analysis was conducted, with 346 pulmonarytuberculosis patients who underwent drug susceptibility tests for M. tuberculosis at Gwangju Christian Hospital from March 2005 to February 2006. Results: The following percentages of subjects were found to be resistant to at least one drug and to have multidrug-resistant tuberculosis (MDR-TB), respectively: 43.4% and 20.8% of all the subjects; according to the severity of the chest X-ray findings, 36.3% and 6.2% in the mild group, 36.1% and 22.6% in the moderate group, and 61.0% and 35.0% in the far- advanced group; according to the presence of a cavitary lesion, 49.8% in the cavitary-lesion group and 34.0% in the noncavitary-lesion group and according to the history of previous tuberculosis treatment, 81.2% in the group who have had treatment and 19.7% in the group who have never had treatment. The resistance rate according to the regularity of antituberculosis drug medication was 31.7% in the regular medication group and 59.7% in the irregular medication group. Conclusion: The drug resistance rate was increased by the history of previous tuberculosis treatment and the irregular medication. As to whether the severity of chest X-ray findings and the presence of cavitary lesions have a correlation with drug resistance, prospective studies are needed for more accurate results.

습관성 흡연여성에서 후측 수부에 발생한 Buerger씨병

김삼,이남호,육청미,최영진,백대균,홍경순,두영철,한규록,오동진,유규형,임종윤,이광학,이영 대한순환기학회 2000 Korean Circulation Journal Vol.30 No.7

분광 앨립소미트리를 이용한 유리기판 위의 박막 분석

성덕경,방경윤,오영륙,최은호,안일신,김옥경 한양대학교 이학기술연구소 2003 이학기술연구지 Vol.6 No.-

Spectroscopic ellipsometry 은 다양한 물질의 광학적 특징을 연구할 수 있는 강력한 기술이다. 현재 실리콘 웨이퍼 위의 박막 분석에는 그 효율성이 확실히 입증되어 있다. 그러나 현재 산업은 유리 기판위의 박막을 분석하기를 원하고 있다. Ellipsometry로 투명기판을 분석하기 위해서는 후면 반사에의한 비간섭성 효과를 고려해야 한다. 기존의 반사공식을 투명기판의 비간섭성을 고려하여 수정하였다. 투명기판 위의 샘플과 scratch를 낸 같은 샘플을 측정 분석하여 정확성을 확인하였다. 수정된 반사공식을 이용하면 디스플레이와 같은 투명재료를 이용하는 곳에 유용하게 사용될 것으로 기대되고 있다. A Spectroscpic ellipsometry is very strong technology to study optical properties of many materials. It has already substantiated a analytic efficiency about thin films above wafers to be made of silicon. However, the current industry needs thin films analyzed on a glass. When we analyze a glass using a ellipsometry, we have to consider a efficiency of incoherence due to reflect at the back side. So then, we slightly altered the original formula. We compared a scratched sample with a sample on the glass, because off getting a exactitude. Our technical development, using the changed formula, is expected the useful utilization in a part of using gIasses such as display.

The Prevalence and Characterization of Cerebral Microbleeds in Young People Having Intracerebral Hemorrhage

Young-Min Lee,Hae-Won Koo,Hyung Koo Kang, M.D.,Jin Woo Kim,Seong Rok Han,윤상원,Chan Young Choi,손문준,Chae Heuck Lee 대한뇌혈관외과학회 2018 Journal of Cerebrovascular and Endovascular Neuros Vol.20 No.2

Objective : Cerebral microbleeds (CMBs) are known as the neuroimaging markers of risk in stroke and dementia. Many studies on CMBs in elderly patients with hemorrhagic or ischemic stroke have been reported; however, reports on CMBs in young populations with intracerebral hemorrhage (ICH) are lacking. Materials and Methods : A total of 272 patients aged 18-54 years presented to our hospital with ICH between December 2009 and August 2017. Among these, CMB presence, count, and topography with respect to ICH were evaluated on magnetic resonance imaging (MRI) gradient echo images (GREs). We also evaluated the prevalence and risk factors of CMBs. Results : Among 272 patients, only 66 underwent GRE T2-weighted MRI. CMBs were detected in 40 patients (61%), with 29 (73%) being of the multifocal type. Among the 219 CMBs, 150 (68.5%) were of the deep type and 69 (31.5%) of the lobar type. CMB prevalence was higher in men. In multivariate logistic regression analysis, history of hypertension (adjusted odds ratio [aOR], 4.048; 95% confidence interval [CI], 1.14-14.32; p = 0.030), and male sex (aOR, 4.233; 95% CI, 1.09-16.48; p = 0.037) were independently associated with CMBs. Conclusion : In young patients who presented with spontaneous ICH, CMBs were highly prevalent in 61% of patients and strongly associated with history of hypertension and male sex.

R&D Investments in Emerging Economies : An Integration of Different Corporate Governance Perspectives

Young Rok Choi,Yuhong Lan 동중앙아시아경상학회 2015 한몽경상학회 학술대회 Vol.2015 No.07

Alcohol, NAFLD, Other : The Uneven Distribution of Liver Fat Estimated from MRI and its Clinical Importance

( Young Rok Choi ),( Tae Yoo ),( Suk Won Suh ),( Jeong Moo Lee ),( Hye Young Kim ),( Hae Won Lee ),( Nam Joon Yi ),( Kwang Woong Lee ),( Kyung Suk Suh ) 대한간학회 2013 춘·추계 학술대회 (KASL) Vol.2013 No.1

Background: This study was aimed to evaluate the discrepancy between hepatic fat fraction based on MR chemical shifting images (MRC) and hepatic fatty change of the frozen section as well as the regional difference of hepatic fat and its clinical importance using MRC. Patients and Methods: Between Feb. 2010 and Jun. 2012, 278 living donor liver transplantations were performed at Seoul National University Hospital. 29 living liver donors who had fatty liver (macro-vesicular fatty change > 5%) were retrospectively reviewed. Fat fraction was estimated in the different 13 regions of the liver (segment 1, 2, 3 and the peripheral & deep portion of segment 4, 5, 6, 7, 8) on MRC images. And the pathologic report for frozen section of their liver biopsy was investigated. Results: The degree of discrepancy between liver frozen biopsy and fat fraction from MRC was increased corresponding to the level of fatty change on biopsy. And the degree of regional difference in the hepatic fat also depends on the amount of fat content. The difference of fat fraction went up to 10.6% in this study. And the highest fatty region of 25 donors (86.71%) was located in the right liver right liver and the lowest fatty region of 17 donors (58.62%) was in left liver. Conclusion: Because a needle or wedge biopsy cannot represent the remaining liver completely, especially in a fatty liver, MRC will be helpful to realize the accurate amount of hepatic fat and its regional distribution.