物價의 巨視經濟變數에 대한 動態的 波及效果分析

崔成哲,周修鉉 釜山 外國語 大學校 1995 外大論叢 Vol.13 No.1

The Purpose of this study is to empirically analyze time series model for the dynamic effect of prices on macroeconomic variables. For this purpose, Vector Error Correction Model composed of seven variables is estimated as a prices forecast model. Maximum likelihood estimation is applicated to estimate VECM following Johansen(1988). The forecast experiments is based on the model for sample periods that begin in the first quarter 1970 and end fourth quarter 1992. In general, the analysis attempts to address the general conclusion that has emerged from the study of such VAR that most of dynamic interactions among the key variables can best be explained as. The VAR system is an atheoretic model that captures the statistical relations among various macroeconomic time series. We have tried stationarity of variables with unit root test and cointegration test. Both of the likelihood ratio-the trace test and the maximum eigenvalue test-fail to reject the hypothesis that three or fewer cointegrating at the 5 percent level exist. Thus, three cointegrating vectors were found in the system that include seven variables, and hence this system was estimated as a VECM(vector error correctiion model) As a result of VECM, the dynamic effect of macroeconomic variables of demand side on prices is larger than that of macroeconomic variables of supply side. Though we could not find that wage, interest rate, export and import affect prices from Granger-causality test, we have found prices does Granger-caused by consumption, investment. We could find the following facts by means of variance decomposition at the twenty-four quarter horizon. Results show that innovations in consumption, investment account for more than the other variables share of the variance of prices under orderings presented. The results above means that demand factors is not only the major determinant of prices but also the important variable which influences the price directly. Furthermore it can be implied that prices is determined not by supply factors but by demand factors.

응급실내에서 발생한 폭력의 실태

최웅지,조남수,조수형,김성중,박광철,박진실 朝鮮大學校 附設 醫學硏究所 2004 The Medical Journal of Chosun University Vol.29 No.1

Background and Objectives: The objective of this study was to obtain circumstances about violence providers and cause of the violence in emergency room. Materials and Methods: Reports were provided to emergency department doctors, nurses and emergency medical technicians working in Chosun University Hospital Emergency Center during the sixty days from 26 May 2003 to 24 July 2003. Report form consisted of the degree of violence, the reason for the violence, dermographic information about violence providers, outbreak time of violence and response of emergency personnels. Results: SixtyUeight case of violence in the emergency department were reported. Almost all of the violence was due to the male gender and high incidence in third and fourth decade. The violence occured mostly in the night shift. 55.9% of violence was done by patient and 41.2% was done by patient's guardians. The leading cause of violence were alcohol drunken and delay of laboratory test and treatment. Verbal abuse and threats were the most concern form of violence, Conclusion: It is necessary to solve the problems faced in the emergency department not only administrative and financial aid but also regular preventive education and further study.

1~2기 본태성 고혈압 환자들에서 Imidapril 대 Enalapril의 항고혈압 효과를 평가하기 위한 무작위, 이중맹검 임상시험

최영진,손대원,김용진,이홍자,채인호,김효수,김철호,오병희,이명묵,박영배,채윤식,이영우 대한순환기학회 1999 Korean Circulation Journal Vol.29 No.11

農漁村地域 定住生活圈 區分設定 : 全南 高興郡地域 事例硏究 A Case Study in Koheung County, Chonnam Province

崔洙明,黃漢喆 全南大學校 農漁村開發硏究所 1988 農業科學技術硏究 Vol.23 No.-

This study was carried out to try a methodological approach in planning of rural settlement hierarchy as a study in Koeung County. The propose method is consisted of three sub-steps: step Ⅰ analysis on the print hierarchical settlement patterns, step Ⅱ,analysis and estimation of settlement conditions in future, and step Ⅲ, design of rural settlement hierarchy in county level. In step I, theoretical division of the influential boundary of county-center using the radius of 16Km, analysis of market-use patterns and catchment area of middle schools were tried as analysis tools. Step Ⅱ, change-ability of settlement environment was detected by checking of planning view to county development in higher-rank plans just as provincial or national plans and by estimating the linkage patterns to higher-order center. The major results of this study are summarized as follows: 1. The settlement hierarchy of Koheung County has 4-order system: villege-lower order center (Myun)-low order center(Myun or Eup)-county center(Eup, the seat of county office). It is coincident with the current administrative hierarchy and the hypothetical settlement system propose in this study. 2. According to results of detailed survey, life-zones of Daesuh-, Donggang-, Bongrae, Myuns were divided into two or three parts with their higher order center being neighbouring towns in other county or cities. Koheung-Eup, Doyang-Eup and Kwayeog-Myun make central function fully to the neighbouring Myun-class areas. 3. There are four spheres of daily life in Koheung County : Beolgyo (Beoseong Country) Kwayeog, Koheung and Doyang zones, In future, because Kwayeog zones is estimated to be merged into Koheung zone, the area will be divided into three life zones. 4. Different from typical settlement patterns in rural counties, the highest center in Koheung County (Koheung-Eup) can not converge the total potentiality of subareas. The centers of other three life zones are not connected to Koheung-Eup as higher order center in living activities, but directly to Kwangju City which is the regional center of Chonnam Province respectively, So, there are some unsolved problems in harmonizing the centripetal forces for maximization of developmental potentialities in closed concept with the centrifugal forces for maximization of life convenience in open concept. 5. The methodologies proposed may be applied to the settlement planning in other rural counties having similar settlement condition as Koheung. However, as this study is only a trial to methodological approach in settlement planning, precies methods fer analysis and design works should be developed and studied continuously because planning of settlement system is very crucial to the life of residents living in rural counties.

렙토스피라증의 진단에 있어 수동혈구응집반응법과 육안응집반응법의 정확도에 관한 연구

최보율,김영규,이수진,송재철,박항배 한양대학교 의과대학 1994 한양의대 학술지 Vol.14 No.2

Before 1984, Leptospirosis had been reported sporadically in middle inland of Korea as hemorrhagic pneumonia like disease, epidemic pulmonary hemorrhagic fever or epidemic pneumonitis since 1975. The epidemiologic characteristics of this disease were found out and the agent was isolated microbiologically after a large epidemic in 1984. Thereafter many consecutive studies for leptospirosis had been performed in the realm of epidemiology, microbiology and clinical field. But in order to appropriate control of Leptospirosis there are many problems such as organizing surveillance system for early diagnosis and treatment, identifying sero-group and serovar in each epidemic area and assessing vaccine efficacy. The objectives of this study was to find out easily applicable diagnostic methods to be used in a rural community surveillance system. Two diagnostic methods, passive hemagglutination(PHA) test and macroscopic agglutination test(maAT) were measured against their accuracies, sensitivity, specificity and predictive value of positive and negative. 301 sample sera from 270 human cases was collected through Leptospirossis surveillance system in a rural community during 1989-1992. Microscopic agglutination test(MAT) were used for confirmed diagnosis according to WHO guideline with 4 strains; Icterohemorrhagiae lai and Canicola canicola Hond Utrecht IV as standard strians and 6P-014-1 and YP-35-1 as strains isolated in Korea in 1986. The results are as follows. 1. 75(24.9%) among 301 sample sera and 49(18.1%) among 270 persons was serologically positive with MAT. 2. Agreement between PHA and MaAT was very low(k-coefficient≤0.252). 3. In PHA, specificity was very high(≥0.96) but sensitivity was very low(≤0.28). 4. In MaAT, specificity(≥0.73) was relatively lower than PHA but sensitivity (≥0.79) was significantly higher than PHA, especially false-positive rate case was absent in MAT's high antibody titer(above 1:640). It was concluded that MaAT method was a very useful diagnostic tool for early diagnosis of Leptospirosis in a rural community surveillance system, provided that confirmed diagnosis with MAT method be carried out in laboratory of medical school or research institute such as National Institute of Health or Provicial government Institute of Health and Environment.

韓國 信用割富의 巨視經濟效果에 대한 計量分析

최성철,주수현 釜山 外國語 大學校 1997 外大論叢 Vol.16 No.1

The interest rate is the adjustment mechanism in loan markets. An equilibrium has seldom acquired in loan markets because of characteristics of loan markets such as default risk, borrower classification, customer relationships, and imperfect imformation. Credit rationing can be defined as a situation in which there exists an excess demand for loans because quoted loan interest rates are below the Walrasian market clearing level. Generally, firms which request loans for the investment act as promary borrowers in loan markets. The availability of credit affects the amount of investment. So, credit rationing affects macroeconomic varibles through the investment of firms. The purpose of this study is to analyze the macroeconomic effects of credit rationing. For this prupose, we have examined the effects of credit rationing on real GNP, price level, interest rate of private bonds, and investment. We have tried stationarity of variables with unit root test and cointegration test. Then, we have applied vector error correction medel to variables which have stationary relation.

메세지 전송을 이용한 클럭 동기화에 관한 연구

최용락,박진섭,하수철 大田大學校 1988 論文集 Vol.7 No.1

유육종증 1례

전수영,정운태,황성보,류종철,최수전,고일향 인제대학교 1993 仁濟醫學 Vol.14 No.4

저자들은 폐결핵 추정하에 치료를 받았던 Sarcoidosis 환자 1례를 경험했기에 문헌적 고찰과 함께 보고하는 바이다. Sarcoidosis is a granulomatous disease of unknown etiology In which pulmonary manifestations typically predominate with protean extrapulmonary and systemic manifestations. In sarcoidosis, pulmonary symptoms include dyspnea on exertion, non-productive cough and wheezing. Typical radiologic finding is a diffuse infiltration with or without bilateral symmetric hilar lymphadenopathy. Sarcoidosis should be differentiated with pulmonary tuberculosis because of its clincal and radiological slmilarity in Korea, an endemic area of pulmonary tuberculosis. We report a case of sarcoidosis patient whose symptoms were not improved by treatment with anti-tuberculous medication, but by steroid therapy following the diagnosis of sarcoidosis made by biopsy.

동종 골수이식 후 만성 이식편대숙주질환과 동반되어 신증후군으로 발현된 IgA 신병증 1예

정철권,김현수,박준성,정성현,조도연,최진혁,남동기,임호영,김명성,신규태,임현이,김효철 대한조혈모세포이식학회 1999 대한조혈모세포이식학회지 Vol.4 No.2

동종 골수이식 후 발생하는 신기능부전은 원인이 다양하여 감별에 어려움이 있다. 만성 GVHD는 흉선의 기능저하에 따른 면역관용의 실패로 발생되는 자가면역현상에 의해 발생되는 것으로 알려져 있으며 드물게 신장을 침범하여 신증후군을 일으키기도 한다. CaA의 용량을 줄이거나 투약중지 후 발생한 만성 GVHD에 동반된 신증후군의 경우 조기에 신조직검사를 시행하여 감별진단하고 CsA의 용량을 증량하거나 재투약하여 좋은 치료 결과를 보일 것으로 기대된다. 저자들은 문헌고찰을 통해 동종 골수이식 후 발생된 신증후군이 유사한 임상양상을 보이며 발생기전에 만성 GVHD와 자가면역현상이 연관되어 있음을 확인하였으며 동종 골수이식 후 신증후군의 임상양상을 보이는 환자에서 병리조직학적으로 lgA 신병증을 진단하고 이러한 lgA 신병증이 발생기전에 만성 GVHD와 자가 면역현상이 연관되어 있을 가능성을 최초로 확인하였으며 CsA를 이용하여 성공적으로 치료한 경험을 하였기에 보고하는 바이다. Renal insufficiency is occasionally encountered in allogeneic bone marrow transplantation and its cause is difficult to ascertain. Chronic graft-versus-host disease (GVHD) related to thymic dysfunction is immune-mediated and involves autoreactivity of T-lymphocytes derived from donor marrow to recipient's major histocompatibility complex(MHC) minor antigens. The clinical mainifestations of chronic GVHD are similar to those of autoimmune disease but kidney involvement is rare. Few cases of nephrotic syndrome with membranous nephropathy or minimal change nephrotic syndrome have been reported to be associated with chronic GVHD in allogeneic bone marrow transplant recipient especially after cyclosporine A(CsA) withdrawal, and these cases have responded well to CsA. Therefore, it is prudent to differentiate the cause of post-transplant renal insufficiency using renal biopsy and to start CsA in a case of nephrotic syndrome associated with chronic GVHD as early as possible. We report a case who had a massive proteinuria during the post-allogeneic marrow transplantation period. The cause of nephrotic syndrome was diagnosed as IgA nephropathy by renal biopsy. The patient was successfully treated with reintroduction of CsA.

분산 실시간 시스템을 위한 로컬 스케줄러 확장에 관한 연구

하수철,최용락,박진섭 大田大學校 1988 論文集 Vol.7 No.1

This paper is a study on the scheduling mechanism for distributed real time systems. A MINIX system uses preemptive priority scheduling policy and round robin method which take multi-level queueing systems. but this method is unsuitable for distributed real time systems, because it is designed for single syytem environments and used fixed priority based on cpu time. This paper presents extended scheduling mechanism of MINIX system for distributed real time system environment. First, Decision Routine is designed for determination of the execution of the real time processes on the local node. Second. Local Scheduler and Global Scheduler are designed for lical scheduling and global scheduling of real time process based deadline and computation time. Designed module is implimented on MINIX system under IBM-PC/AT.