The Effects of Microeconomic Fundamentals on the Korean Financial Crisis

Kim,Sunghwan,Kim,Hong Kee,Kim,Jin San 한국산업경영학회 2010 한국산업경영학회 발표논문집 Vol.2010 No.1

In this study, we assess the effects of default risks and financial performance of firms on the overall risk of Korea around its financial crisis in the late 1990s and on their market values, using firm-level data from 1991 to 2007. We develop default prediction models and calculate Altman’s K scores to measure the overall risks and quality of firms respectively. Based on our own default prediction models, we have shown that the default risks of firms were extremely high before the crisis and drastically declined after the crisis. We have also found that the default risks of chaebol firms were much lower before and after the financial crisis and that their market values were much higher after the crisis, compared with those of non-chaebol firms. This implies that the Korean economy with high sovereign risks for a long time experienced the crisis due to weak firm-level fundamentals, regained its vitality due to significant improvements made by chaebol firms through the crisis and has become much stronger than before.

요 검사용 스트립의 분광학적 분석을 위한 Computer Simulation

김성철,진병문,김재형,김정배,조진욱,전계록,이승진,김건우 동의대학교 기초과학연구소 1999 基礎科學硏究論文集 Vol.9 No.1

The spectroscopic properties of 9 pads in a urine strip were studied to develop a urine analysis system. From the present work, we determined the wavelength range which could accurately distinguish the degrees of 9 test items. A computer simulation was performed to distinguish the primary color reaction in the urine strips by using the reflectance of the urine strips, the iuminous intensity of light-emitting diodes, and the spectral sensitivity of photodiodes. The simulation results agree well with the experimental results obtained by using a UV-Visible spectrophotometer.

편측관상봉합 조기유합증 환자에서 컴퓨터단층촬영을 이용한 두개 기저부의 술후 변화 예측

김영석,김진형,김용욱,유선국,이혜연,김기덕,박병윤 大韓成形外科學會 2004 Archives of Plastic Surgery Vol.31 No.2

한국 정신장애의 역학 조사 연구[I] : 각 정신장애의 유병률

조맹제,함봉진,김장규,박강규,정은기,서동우,김선욱,조성진,이준영,홍진표,최용성,박종익,이동우,이기철,배재남,신정호,정인원,박종한,배안,이충경 大韓神經精神醫學會 2004 신경정신의학 Vol.43 No.4

Objectives : This study aims to estimate the prevalence of the DSM-IV psychiatric disorders in Korean population using the Korean version of Composite International Diagnostic Interview (K-CIDI). Methods : Subjects were selected by taking multi-stage, cluster samples of 7,867 adult household residents, 18 to 64 years of age, in ten catchment areas. Total 78 trained interviewers administered the K-CIDI to the selected respondents, from June 1 to November30,2001. Results : Total 6,275 respondents completed the interview. Some 33.5% of respondents reported at least one lifetime disorder, 20.6% reported at least one-year disorder, and 16.7% reported at least one-month disorder. The most common lifetime disorders were alcohol abuse/dependence (17.24%), nicotine dependence/withdrawal (11.19%), specific phobia (5.16%), and major de-pressive disorder (4.25%). The lifetime prevalence of substance abuse/dependence (0.25%) and schizophrenia (0.16%) was very low. Nicotine and alcohol use disorder showed very high male/female ratio. Mood disorder and anxiety disorder were more prevalent among female than male. Conclusion : The prevalence of psychiatric disorders was high. In comparison with other studies, remarkable differences in distributions of psychiatric disorders across the areas and times were observed.

곰팡이에서 분리한 Helicobacter pylori 항균물질의 분리 및 구조규명

남궁준,연승우,백남수,김태한,김영호,김창진,김기원 충남대학교 약학대학 의약품개발연구소 1998 藥學論文集 Vol.14 No.-

Helicobacter pylori is a Gram-negative bacterium which causes chronic gastritis and is associated with gastric ulcer, duodenal ulcer and gastric carcinoma. In the process of screening of antibacterial activities against H. pylori from soil microorgani는, fungus No. 60686 was isolated. After fementaion of No. 60686, the antibacterial compound was isolated, purified and followed by extraction of mycelium with orgainic solvents, acetone and ethyl acetate, through silica gel chromatography, LH-20 gel chromatography and HPLC. As a result of the structural analyses of the compound by IR, ^1H- and ^13C-NMR, FAB/Mass spectrophotomer, the compound having the antimicrobial activity was idenfitied as chaetoglobosin A (C_32H_36N_2O_5), a cytochalasan derivative. The antimicrobial activity of chaetoglobosin A was tested against Gram-positive and negative bacteria by paper disk method. Among the test strains of 9 Gram-positive bacteria and 18 Gram-negative bacteria containing 4 H. pylori strains, the growth of 4 H. pylori strains and 3 S. aureus strains (SG 511, 285 and 503) was only inhibited by chaetoglobosin A. Also it was shown that its growth inhibition against H. pylori strains was stronger than that against S. aureus strains at the treatment of the same concentration. Therefore it was concluded that chaetoglobosin A has a specific growth inhibition against H. pylori of the tested bacteria.

복합 관동맥병변에서의 Rotational Atherectomy : 초기결과

김진우,박성욱,홍명기,이상곤,이일수,이철환,최기준,강덕현,송재관,김재중,박승정 대한순환기학회 1997 Korean Circulation Journal Vol.27 No.9

BCG 접종후의 결핵반응검사의 변화

김진경,김기홍,김행미,안두홍 慶北大學校 醫科大學 1991 慶北醫大誌 Vol.32 No.1

신생아 시기에 BCG를 접종받은 영아를 대상으로 3±개월, 7-8개월 및 15-16개월에 Mantoux 검사를 시행하여 다음과 같은 결과를 얻었다. 3-4개월째 측정한 결절의 크기는 5.8±4.5㎜, 7-8개월째 7.9±4.9㎜,15-16개월째 6.7±4.9㎜로서 7-8개월째 의의있게 (p<0.55)증가되어 있었다. Mantoux 검사상 결절의 크기가 5㎜미만인 경우를 음성으로 간주하였을대 3-4개월째 38.5%, 7-8개월째 26.0% 및 15-16개월째 35.2%가 음성이었으며 15㎜이상의 강양성은 3-4개월째 1.9%, 7-8개월째 12%, 15-16개월째 7.5%를 차지하였다. 33례의 미숙아에 있어서 BCG 접종후 18개월 동안 5㎜ 이상의 반응을 보인 양전례는 63.6%인 21례로 이들 양전군과 비양전군 사이에는 출생시 제태연령, 체중 및 BCG 접종시기에 유의한 차이를 보이지 않았으며 만삭아의 양전율과 비교 하였을 때 의의있는 차이를 보이지 않았다. We conducted this study to evaluate the change of tuberculin reaction after neonatal BCG vaccination in Korea. Seventy-four infants were followed for 15-16 month after birth. BCG vaccination were given within 4 weeks after birht and 3 times of Mantoux test were performed at 3-4 months, 7-8 months and 15-16 month after birth. During the same period, Mantoux test were done on 238 cases of 3-4 months-old infants, 107 cases of 7-8 months-old infants and 85 cases of 15-16 months-old infants who were given BCG vaccination within 4 week after birth. We evaluated the results without distinction of these infants because there was no statistically significant difference between two groups. The size of induration was significantly increased at 7-8 months(7.9±4.9㎜) compare to the size at 3-4 months (5.8±4.5㎜) and 15-16months(6.7±4.9㎜) (P<0.05). But 38.5%, 26.8% andn 32.5% of infants were not converted ( < 5㎜) at 3-4months, 7-8 months and 15-16 months after birth respectively. Thirty-three preterm infants were followed for 18 months after birth. Twenty-one out of 33 (63.6%) were converted during this period. There was no difference of gestational age, birth weight, age on BCG vaccination between converters and nonconverters. There was no difference of conversion rate compatre to full term infants.

결과지식 지연간격의 과제성격별 운동학습효과

김기웅,이영진 梨花女子大學校 韓國生活科學硏究院 1992 韓國生活科學硏究院 論叢 Vol.50 No.-

In two experiments, the effect of KR delay interval was experimentally investigated as a function of task characteristics. In both Exp. Ⅰ(fast discrete coincidence timing task) and Exp. Ⅱ(slow continuous pursuit rotor task), three groups of subjects were given KRs either 2 seconds, 10 seconds or 20 seconds after each practice trial for ten blocks of trials, followed ten minutes later by two five trials of transfer tests with two different transfer tasks. Analysis of absolute timing error(Exp. Ⅰ) and time on target(Exp. Ⅱ) as a function of practice phases(acquistion phase ; transfer phase) disclosed that : performance scores improved with the length of KR delay interval, i.e., the performance in practice and transfer was best when the KR delay interval was long(20 sec) and poorest in the short KR delay interval condition. The KR delay interval effect was not statisticallly significant in Exp. Ⅰ, but significant in Exp. Ⅱ, while the block effects(Exp. Ⅰ and Exp. Ⅱ) along with delay interval×block interaction effect(Exp. Ⅱ) was also significant. These results indicated that the KR delay interval is significant performance and learning variables for slow continuous movements while it is not for fast discrete movements. Also, the KR deday interval effect grew larger as the practice trials continued to proceed. Taken altogether, the results was interpreted to negate a common intuitive belief that an immediate KR is more effective for motor learning than a delayed one, while suggesting that for better performance it is necessary and more effective to allow some duration of time to the learners before giving KRs so that the learners have enough time to process and evaluate self-perceived information(intrinsic feedback) and plan, on that basis, the next trials in comparison with KRs given.

신생아 가사의 신경학적 예후에 대한 혈중 효소들의 예측도

김기혁,김두산,홍성진,오명호,심재건 건국대학교 의과학연구소 1999 건국의과학학술지 Vol.9 No.-

Perinatal asphyxia is one of the most important factors contributing to neonatal morbidity and mortality. However, no clear-cut parameters exist which enable an early identification of neonates who are at risk to develop brain damage. We measured creatine kinase(CK), CK isoenzyme, AST, ALT, LDH in full term asphyxiated(n=35) and healthy(n=39) newborns at 6-10 hours after birth to establish the values of these enzymes in the retrospective diagnosis of asphyxia and if serum levels of these enzymes correlated with the abnormalities of neurosonography or auditory evoked potential. The asphyxiated newborns had significantly increased serum activities of CK-BB(93.5±160.8 IU/L) and CK-BB%(11.1±12.4%) compare to controls(39.2±37.2 IU/L, 3.9±3.4%). However, there were no significant differences in the enzyme activities between normal and abnormal groups of neurosonography or auditory evoked potential. It is concluded that elevated CK-BB and CK-BB% are reliable indicator of the neonatal asphyxia. But the predictive value of specific enzymes for the development of neurologic disorders is not clear. Prospective long-term follow up studies are necessary to evaluate the predictive value of enzyme activities for the neurologic outcome.

프로 축구팀 이미지가 기업 이미지에 미치는 영향

김장환,이성노,김민지,박진기 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6

This Study has examined the influences of the images of the pro soccer teams on the images of the businesses by the method of covariance structure analysis. That is, the structural model of the influences of the images of the pro soccer teams and then the causal relationship of each variable has been analyzed quantitatively. For this purpose, the general people seeing the soccer games in the soccer grounds have been the population, and 280 sampling objects have been selected out of them by simple random sampling. Out of the 250(89.3%) collected questionnaires, 213(76.1%) questionnaires, excluding those questionnaires are those whose answers are insincere or some parts of which are missing, are as valid samples. As the measuring instrument for this study, the measures of Aaker (1997) are used, and the questionnaires used by Yu, Taeyong(1990) are revised and restructured to be fit for the purpose of the study. The method of the statistical analysis used to find out the influences of the pro soccer teams on the images of businesses are the covariance structure analysis. The findings concerning the structural models obtained on the basis of the methods of the study and the analysis of the data are as follows: The analysis of the images of the pro soccer teams on the images of businesses show that the factor of credibility influences the intellect, vividness, inhumanity and solidity, the factor of certainty influences vividness, solidity, the factor of advancedness influences inhumanity, wildness. On the other hand, the factor of interestingness doesn't influences the intellect, vividness, inhumanity, wildness, and solidity.