Poster Session : PS 0831 ; Upper GI Tract : Clinical Factors to Predict Angiographically Detectable Non-Variceal Upper Gastrointestinal Bleeding in Patients Refractory to Endoscopic Treatment

( Tae Hwan Ha ),( Tae Hoon Oh ),( Sung In Yu ),( Min Kim ),( Jong Wook Kim ),( Won Ki Bae ),( Jae Hyung Kim ),( Seung Suk Baek ),( Mi Jin Ryu ),( Ye Na Choi ),( Ji Young Park ),( Eileen L Yoon ),( Tae 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

Background: Non-variceal upper GI bleeding (NVUGIB) is a common medical problem that has signifi cant association with morbidity and mortality. Angiographic detection and subsequent transarterial embolization (TAE) is a primary treatment option when medical and endoscopic treatments fail. We investigated clinical factors that could affect the success of the angiographic detection and prognosis after TAE in patients with NVUGIB refractory to endoscopic therapy. Methods: A retrospective analysis of the clinical data was done in patients with failed endoscopic treatment who underwent angiography for the treatment of acute NVUGIB between May 2002 and May 2013. Patients were divided into detection or non-detection groups according to the presence of bleeding stigmata in angiographic fi nding. Rebleeding defi ned as subsequent bleeding event within 7 days and mortality within 30days were analyzed as outcome parameters after TAE following detection in angiography. Results: A total 45 patients 37 (male, mean age, 65.9±14.9 years) were analyzed and classifi ed as a detection group (n=25, 55.5%) and non-detection group (n=20, 44.6%). Peptic ulcers were the most common cause of refractory NVUGIB. Larger transfusion amount (5.7±3.9 unit vs. 3.5±2.8 unit; P=0.03), prolonged aPTT level (34.2±17.3 sec vs. 21.8±13.8 sec; P=0.01) and short time interval between last endoscopy and angiography (17.5±25.9 hours vs. 34.3±59.5 hours; P=0.04) were found to be signifi cant factors for predicting angiographic detection. TAE was performed in all patients detected in angiography. Rebleeding (44%) was significantly associated with higher Rockall score (8.3±1.5 vs. 6.6±2.4; P=0.046) and mortality (12%) was signifi cantly associated with higher Rockall score (9.3±0.6 vs. 7.1±2.2; P=0.002) and higher level of BUN (55.3±47.4 vs. 27.6±17.4; P=0.01). Conclusions: Clinical characteristics associated with angiographic detection in patients with NVUGIB refractory to endoscopic therapy were severe bleeding, bleeding tendency and early angiographic intervention. The Rockall score is useful parameter for predicting rebleeding and mortality after TAE.

Treatment of Radioactive Liquid Waste by the Forced-AirCirculation System

Tae-κuk Kim,IL Sik Kang,Jong-Sik Shon,Young-Gerl Ryu,Won-Hyuk Jang,Sang-Min Bae,Young-Yong Ji,Dae-Seok Hong,Kyung-Kil Kwak 한국방사성폐기물학회 2011 한국방사성폐기물학회 학술논문요약집 Vol.9 No.2

초등학교 학생의 여가환경 및 여가활동 선호 경향에 관한 연구

류록규,문태영 三陟大學校 1999 論文集 Vol.32 No.3

This paper purported to provide the data that its reform measure can be taken and effective leisure education be performed by diagnosing the leisure participating type, environment and obstacling factors of primary school students, analyzed the subject of 611 primary school students residing in Kangnumg, Kangwondol, and reached the following conclusion 1. Leisure environment Both boy and girl students indicated the highest rage for the place to spend their leisure time at homes, both public school boy and girl students showed ordinary satisfaction extent or less for school facilities, an ordinary satisfaction extent for the facilities near school Both private school boy and girl students exihibited more positive response for parents' opinion and teachers' instruction to leisure activity than public school boy and girl students(p< .05), only girl student groups showed a significant difference for teacher's leisure instruction (p<.05). 2. Preference trend of leisure activity Boy students indicated the highest rate for the most desiring leisure at sports, girl students at viewing and appreciating fields, boy students did the highest rate for the most desiring leisure during vacation at sports and travel, girl students at travel, which showed a significant difference only in girl student groups(p<.01), boy students did the highest rate for the most necessary field for future leisure activity at sports, girls students at parents' understanding, which showed a significant difference only in boy student groups(p<.01)

CMB7 모델을 이용한 총 부유분진의 오염원 기여도 평가

류영태,이진홍 忠南大學校 環境問題硏究所 1997 環境硏究 Vol.15 No.-

This study centers on an estimation of source apportionment for total suspended particulates (TSP) in Taejon Industrial Complex by using the Chemical Mass Balance Model (Version 7 : CMB7). The suspended particulate matters were collected on quartz fiber filters by a high volume air sampler. The sampling was conducted in the Complex twice or four times per month from June to August, 1997. About twenty metal elements were analyzed by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) and Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES) after the pretreatment of mixed acid extraction. Based on these analyzed concentrations, CMB7 model was applied to estimate the source appointment of ambient TSP concentrations in the Complex. The source appointment for TSP during the sampling period were estimated to be 35% from diesel vehecles(DIESH), 32% from road dust(PDUST), 10% from kraft recovery furnace (KRAFT), 6% from agricultural field burning, 3% from aluminum processing and etc.The reliability of the results was judged to be good by 0.95∼1.00 of R² and 0.16∼3.67 of χ² values while 65.1∼105.1% of percent mass for TSP. For better assessments of source contribution by using the CMB7 model it will be necessary to analyze more appropriate chemical species such as Si and Co in addition and to investigate source emissions in more detail for the Complex.

국내 시스템통합(SI)업체에서의 CASE 도구(Tools)의 활용실태에 관한 분석

류영태 대한경영학회 2003 大韓經營學會誌 Vol.16 No.7

The study explores the use of CASE tools. Several research questions are asked. I) Are CASE tools being used? 2) What features of CASE tools are being used? 3) Do system developers who use CASE tools use the same methodologies and perform the same activities that system developers who do not use CASE tools use and perform? 4) Do system developers who use CASE tools enjoy them and they perceive CASE tools as being useful? About 400 system developers participated in this study. The study indicates there are still a low usage of CASE tools in Korea. Within the companies that have adopted CASE tools, low percentage of developers are actually using the tools. The systems developers who use CASE tools are using formal systems development methodologies more often than systems developers who do not use CASE tools. The systems developers who use CASE tools spend their time more on the analysis and design than systems developers who do not use CASE tools. The system developers who use CASE tools are using only few of the functions within the tools. Finally, the results indicate that systems developers are basically neutral on whether they enjoy using CASE tools and whether they perceive the tools are useful.

Best Practice 구현에 의한 신발 제조 자원관리 시스템

류영근,이태문,서승록,김행렬 한국의사결정학회 2000 경영과학연구 Vol.9 No.-

Presented in this paper is a development of ERP systems for footwear manufacturing. Final goal of the system development is to construct ERP system covering all works from order to make, shipment, accounting. And the objective of this paper is to introduce to completed 6 sub-systems of developing total 13 sub-system for production resource planning. In this study, introduce analysis of existing business flow and design of standard business process for development of systems. Also describe input and output of the standard business process for production resource management and basic structure, design of the total system flow, configuration of completed 6 sub-systems are presented. Finally, function of software modules and principal algorithms and basic data structuring techniques on the 6 sub-systems are explained.

암모니아성 질소(NH_4^+-N)제거를 위한 제올라이트성 물질의 제조

류태공,류재춘,한명식,김철규,김영호,양현수 忠南大學校 産業技術硏究所 2002 산업기술연구논문집 Vol.17 No.2

The objectives of this study were to synthesize high ion-exchangeable zeolitic materials prepared from coal fly ash and to determine the adsorption capacities for the removal of NH_4^+4-N in wastewater For comparison. NH_4^+-N adsorption capacities of commercial, natural, and synthetic(4A type, Si0_2/Al_2O_3=1.98. Na_2O/SiO_2=1.54. H_2O/Na_2O=46.95) zeolites were investigated at the same condition. Zeolitic materials were prepared from coal fly ash by hydrothermal reaction with various NaOH concentrations at the reaction time of 4h and the reaction temperature of 100℃. It showed that the zeolitic material prepared at a 4M-NaOH concentration had the most NH_4^+-N adsorption capacity. Theremoval efficiency of NH_4^+-N on the zeolitic material was little difference compared with those on natural and commercial zeolites, though it was lower than that on a synthetic zeolite(4A type). As a result, it is expected that the prepared zeolitic material could be applicable to adsorbent for the NH_4^+-N removal in wastewater.

국내에 있어서 프로그래밍 언어의 수요ㆍ공급분석에 따른 COBOL의 교육방향에 대한 연구

류영태 부산 외국어 대학교 2001 外大論叢 Vol.23 No.1

COBOL has been one of the most successful business programming languages for last four decades, However, to keep up with the fast-changing world of information technologies(IT), new powerful and effective programming languages such as Visual Basic(VB) and Java are emerging. In America, COBOL has maintained its reputation, partly by evolving to address changing technology and user needs, but in Korea, COBOL is losing its position as a top programming language in a business application area. This article reports the results of a survey of 96 business and industry organizations and 95 higher-educational institutions to investigate the status of COBOL as a programming language in Korea. The result shows that about 26% of IS managers still use COBOL for maintenance of legacy applications, but only 2% of IS managers are considering to use COBOL for new applications development. Currently, about 16% of academic respondents still include COBOL within their IS curricula, but most of them are seriously considering to replace or remove it in their curricula. Evidence suggests that languages such as VB, Java, and other web programming tools are increasingly preferred now for implementing application systems as organizations move from mainframe-based computing to more flexible computing environments utilizing client/server architectures and distributed systems. So, for firms that have made the decision to move their application development to other languages, retraining programmers experienced in COBOL to adopt the new languages is critical, as there is a scarcity of IT professionals to keep up with a new IT environment.

형광검출 역상 액체크로마토그래피에 의한 Histamine의 정량

유희춘,김형룡,김상현,김대기,이영미,김형민,안년형,신태용 우석대학교 의약품개발연구소 1996 藥學硏究誌 Vol.1 No.-

Histamine을 정확하고 신속하게 정량하기 위해 9.Fiuorenylmethyl chloroformate를 형광유도체화제로 하여 역상 HPLC법으로 정량하였다. 히스타민을 형광유도체화할 때 반응액의 pH, 반응시간, 형광유도체화제의 농도 등 최적 반응 조건을 검토하였다. 이 방법으로 히스타민을 분석한 결과 0.1~0.5ug/ml의 농도범위에서 상관계수가 0.922인 양호한 직선성을 나타내었으며 검출한계는 0.01??/ml였다. A rapid and simple method for the determination of histamine by reverse-phase high performance liquid chromatography with fluorescence detection was established. 9-Fluorenylmethyl chloroformate(FMOC) was used as fluorescent derivative reagent. The optimum conditions for the derivatiation such as pH, reaction time and he concentration of FMOC were investigated. Linearity of calibration curve was obtained between 0.1ug/ml/and 0.5ug/ml(r=0.922) and the limit of detection was 0.01ug/ml.

신경교 세포 기원 종양의 조직 병리와 p53 Protein 발현과의 관계

류태희,최정목,강대영 충남대학교 의과대학 지역사회의학연구소 1994 충남의대잡지 Vol.21 No.1

The p53 gene is one of the most extensively investigated tumor suppressor genes. Several neoplasms have been thoroughly investigated for altered p53 gene expression, including lung, breast, and colorectal cancers, but the studies of neuroglial tumors are rare. Immunohistochemically, we demonstrated p53 protein expression in 40 cases of 156 central nervous system tumors, which were collected from Jan. 1989 to June 1993 at the department of anatomical pathology, Chungnam National University hospital. The results are as follows; 1. The incidence of gliomas(25.6%) was the highest in brain tumors, followed by meningomas(16.7%), pituitary adenomas(15.4%), neurilemomas(14.1%) and metastatic tumors(9.6%). 2. The incidence of gliomas in males was slightly higher than in females(M:F = 1.1: 1). Gliomas were distributed among all age groups, and the mean age was 35.3 years. 3. The positivity of p53 protein expression was the highest in glioblastoma multiforme(75.0%), followed by anaplastic astrocytoma(66.7%), low grade astrocytoma(30.0%), oligodendroglioma(20.0%), and ependymoma(16.1%). 4. The p53 index(No. of p53 protein positive cells/No. of total cells) was 68.7 in the glioblastomamultiforme in the original tumor, while 91.8 in the recurrent glioblastoma multiforme. The results suggest that there is some correlation between the degree of the histopathologic differentiation in neurogical tumors and the p53 protein expression. In addition, the p53 protein detection may provide a clue in the identification of malignant progression in neuroglial tumors.