40세 이하 관상동맥 질환자에서 장기적 임상 관찰

이승욱,정명호,박종철,박형욱,조상희,김원,김계훈,이상현,강경태,조장현,김남호,김건형,안영근,조정관,박종춘,강정채 全南大醫大 2001 전남의대학술지 Vol.37 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.

보건관리 대행사업 평가도구의 타당성, 신뢰도 및 인과관계 검증에 관한 연구

박정일,조병희,구정완,김광종,김현욱,원종욱,이명숙,정문희 가톨릭대학교 산업의학센터 2001 韓國의 産業醫學 Vol.40 No.1

In order to verify the validity, reliability and relativeness of preliminary evaluation tool for the group occupational health services(GOHS), a questionnaire survey for doctors, nurses and hygienists of 18 GOSH institutions, and employers, health managers and employees of 340 enterprises was conducted. A factor analysis and correlation test for the statistical validity of the variables in the evaluation tool, a Chronbach's Alpha value for the reliability in the evaluation indices and a regression analysis for the relations of the evaluation model were performed. The results were as follows: 1.In factor analysis, thirty-three variables among 43 variables were selected as significant variables, ie 9 out of 11 for input index, 11 out of 14 for throughout index and 13 out of 18 for out put index. 2.Three evaluation(outcome) scales(evaluation by employer, health manager and employee) which composed of 16 identical items were used. 3.The Chronbach's Alpha values of input, throughout, out put and outcome indices were 0.5221, 0.5473, 0.7122 and 0.8546 respectively. 4.Regression equations of independent variables on the evaluation scales of employer, health manager and employee were all statistically significant.

NaCl에 대한 콩 품종간의 생리학적 반응 차이

박종환,천상욱,최원열,정선요 한국콩연구회 2003 韓國콩硏究會誌 Vol.20 No.2

염분조건에서 콩의 피해정도 또는 피해과정 등 생리적 특성과 내성 및 감수성 품종간의 반응차이를 구명하여 내염성 연구의 기초자료로 활용하고자 본 연구를 수행하였다. 감수성 및 내성 품종으로 선발된 두 품종간에 60mM의 염분처리에 따른 생장 및 상대생장율 반응, 잎의 해부학적 관찰, 광합성 및 호흡량, proline 축적 및 nitrate reductase와 peroxidase 활성 등의 반응특성을 비교한 바 다음과 같은 결과를 얻었다. 내성품종 Lee는 무염처리에 비해 초장이 19% 감소한데 반해 감수성 품종 Jackson은 40% 감소하여 뚜렷한 차이를 보였다. 다육질의 정도는 내성품종이 무처리에 비해 58% 증가하였으나 감수성 품종은 오히려 21%가 감소하였고 감수성 품종의 생체중, 건물증, 수분함량의 감소가 뚜렷하게 나타났다. 상대생장율(RGR)과 순동화율(NAR)의 경우 내성품종은 염분처리에 의해 오히려 증가한 경향이었으나 총 건물증에 대한 엽면적 비율(LAR)과 개체생장율(CGR)은 감소하였다. 한편 감수성 품종은 조사된 모든 생장율이 감소하는 경향이 뚜렷하게 나타났다. 염분처리로 잎의 두께는 내성품종이 11% 증가한 반면 감수성 품종은 30% 정도 감소되었는데 이는 다즙질화로 인한 엽육세포의 두께 변화와 관련이 있음을 알 수 있었다. 광합성 정도는 내성품종에서 무처리와 유사하였으나 감수성 품종은 무처리에 비해 14% 감소하였고 호흡량에 있어서는 두 품종 모두 증가되어 각각 11과 8% 증가하는 것으로 나타났으며 두 품종 모두 O2생산비율보다 O2소모비율이 높게 나타났다. 염분처리에 따른 proline 축적량은 무처리에 대비하여 내성품종은 64% 증가하였으나 감수성 품종은 200% 증가하였다. Nitrate reductase의 활성은 염분처리로 인해 내성 품종이 114% 증가하는 반면 감수성 품종은 반대로 37% 감소하였으며 peroxidae 활성은 내서 및 감수성 품종 모두 각각 56, 50% 증가하는 경향을 보였다. 이상의 결과로 보아 지상부의 생육, 상대생장율, 엽육세포의 두께, 광합성 및 호흡량, proline 축적량, nitrate reductase와 peroxidase활성은 콩의 염해 및 내염성 연구에 중요한 지표가 될 수 있음을 확인할 수 있었다. Salt tolerance of soybean is highly dependent on cultivar as well as cultural condition. The objective of this study was to determine difference in parameters of physiological responses between NaCl-tolerant and NaCl-susceptible cultivars selected from a bioassay. Tolerant cultivar "Lee" and susceptible cultivar 'Jackson' soybean (Glycine max (L.) Merr.) cultivars were grown in hydroponic system and treated with NaCl solutions of 0 and 60mM, corresponding to electric conductivity of 1.2 and 7.3 dS/m, respectively, 20days after emergence. NaCl at 60mM inhibited plant lengths of tolerant and susceptible soybean cultivars by 19% and 40%, respectively. NaCl enhanced leaf succulence of tolerant cultivar by 58%. while it decreased that of susceptible cultivar by 21%. With NaCl treatment, fresh and dry weight, and water content of leaves in susceptible cultivar were more decreased than those of tolerant cultivar. Relative growth rate (RGR) and net assimilation rate (NAR) of tolerant cultivar were increased by NaCl treatment, while RGR and NAR of susceptible cultivar were clearly reduced. Total leaf thickness of tolerant soybean cultivar was significantly enhanced up to 11% by NaCl treatment due to expanding mesophyll cells. However. NaCl reduced leaf thickness of susceptible cultivar by 30 8. Photosynthesis rate of tolerant cultivar by NaCl treatment was not affected, however that of susceptible cultivar was reduced by 14% as compared to control. Respiration of both cultivars was increased up to 11 and 8%, respectively. Free-proline content of leaf by NaCl treatment was increased by 64% in the tolerant cultivar and 200% in the susceptible. respectively. NaCl of 60 mM also increased nitrate reductase and peroxidase activities of tolerant cultivar by 114% and 56%. respectively, while it reduced nitrate reductase activity of susceptible cultivar by 37%. The results suggested that the physiological data can use as parameters for salt stress or salt tolerance test to improve sensitivity in screening program.

천연두 백신 접종 후 발생된 급성 심근염 1예

박옥성,김종환,이광욱,윤성훈,강동구,이승욱,조상기 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.2

Acute myocarditis complicating coronary vasospasm after smallpox vaccination is very rare complication that can be generally developed within less than 30 days after vaccination. Clinically and biochemically, this disorder is often mimic and highly suggestive of acute myocardial infarction. We report 21 years old man that had a history of a smallpox vaccination 3 weeks ago and prodromal symptoms(fever, malaise etc) a few days ago. hIe visited to our hospital because of abrupt onset of severe substernal chest pain, dyspnea and diaphoresis. At admission, electrocardiography was ST elevation in lead Ⅰ, aVL, V4, V5, and V6. The CK-MB level was 68 U/L, LDH level was 760 U/L, Troponin-Ⅰ was 24.64 ng/㎖, and Troponin-T was positive. 2D-echocardiograpy was normal left ventricular function, Clinically we presumed this disorder as acute myocardial infarction and we promptly performed the coronary angiography and revealed focal spasm in distal left coronary artery territory without critical stenosis in both coronary arteries. We diagnosed this disorder as coronary vasospam complicating acute myocarditis that is different with acute myocardial infarction, and we prescribed nitroglycerin and nifedipine. After discharge, he is now well without any symptoms and has been following up monthly at our outward department for 6 months.

복합레진의 지연충전이 미세인장 결합강도에 미치는 영향

박현식,조영곤,박병철,김종욱,최희영,김종진,진철희,유상훈,기영재 大韓齒科保存學會 2004 Restorative Dentistry & Endodontics Vol.29 No.3

The purpose of this study was to evaluate the effect of immediate or delayed composite resin filling on dentinal microtensile bond strength (μTBS) after applied the adhesive. The coronal dentin of human third molars was exposed. Single-Bond or One-Step was applied on the dentin surfaces, and composite resin were constructed immediately (group 1) or 5 min., 10 min., 15 min., 20 min. and 30 min. (groups 2-6) after an adhesive was applied. The specimens were sectioned and made bar-shaped. Each surface area of them was about l ㎟. The RBS test was performed by EZ test. The results were analysed by One-way ANOVA and Tukey's test at 95 % significance level. The results suggested that the μTBS of Single-Bond to dentin was decreased when the composite resin was constructed 20 min. and 30 min. after Single-Bond was applied. But the μTBS of One-Step was not affected by delayed composite resin filling.

외과적 보조의 급속상악확장술 : 치험 5예 REPORT OF 5 CASES

박충열,이용욱,송종운,김영운,박홍주,오희균,유선열,이기현,황현식 대한악안면성형재건외과학회 2002 Maxillofacial Plastic Reconstructive Surgery Vol.24 No.1

Five adults (3 cases of bilateral posterior crossbite, 2 cases of unilateral posterior crossbite) with intermaxillary discrepancy of over 5㎜ due to maxillary transverse deficiency were treated by surgically assisted rapid maxillary expansion (SARME). Bilateral maxillary horizontal osteotomies, osteotomies of pterygomaxillary junction and anterior lateral nasal wall, ans anterior palatal osteotomy were performed in 4 cases, and unilateral osteotomies in 1case, followed by palatal expansion with tooth-borne orthopedic applicance. No significant complication was observed. The mean palatal expansion was 7.2㎜ (5.8∼10.0㎜) in the maxillary first molar region. During the mean follow-up period of 4 years (5 months∼8 years 7 months), no recurrence of crossbite was observed in all cases. The SARME seemed to be a simple, stable, and reliable procedure for achieving a permanent increase of over 5㎜ in skeletal maxillary transverse width of adults.

표본의 크기가 작을 경우 중위수의 신뢰구간 추정

박상규,함종육 중앙대학교 통계연구소 1995 統計論文集 Vol.- No.2

중위수의 신뢰구간은 일반적으로 이항분포를 이용하거나 정규근사를 이용하여 추정한다. 하지만 이항분포를 이용해서 계산할 경우 분포의 이산성 때문에 95% 혹은 90% 신뢰수준을 가지는 신뢰구간을 만들 수 없고, 정규근사를 이용할 경우 표본의 크기가 작은 경우 역시 문제가 생긴다. 본 연구에서는 표본의 크기가 작을 때 중위수의 신뢰구간을 보간법을 이용한 방법(Hettmansperger와 Sheather(1986)), 정규근사를 이용하는 방법(Sheather(1986))등을 비교해보고 Hodges-Lehmann의 추정량을 보간법을 이용해서 신뢰구간을 추정하는 문제를 제시해보고 표본의 크기가 작은 경우 모의실험을 통해 여러 확률모형하에서 신뢰구간의 포함확률을 비교한다. There are only relatively few confidence coefficients and levels available for distribution-free confidence intervals of the median for the case of the small sample sizes. This problem can be overcome by interpolating confidence intervals (Hettmansperger and Sheather(1986)) or by studentizing the median by an estimating of its standard error(Sheather(1986)). We propose another interpolating confidence interval by using Hodegs-Lehmann estimator and discuss the previously mentioned methods. We compare the coverage probabilities of the methods via simulation.

아연계 탈황제의 장기연속 반응성 연구

박노국,이종욱,이승철,이종대,류시옥,이태진 영남대학교 공업기술연구소 2000 工業技術硏究所論文集 Vol.28 No.2

The zinc titanate sorbents(ZTG40) were prepared and the tests for durability and attrition resistance were carried out to develop the highly effective desulfurization sorbents. In the attrition tests for ZTG40 the results showed that the attrition resistance was 94.08% and that the sulfur capacity was maintained above 15g S/100g sorbent throughout the 100-cycle test, its maximum being 23.05g S/100g sorbent. As compared to sorbents developed by the developed countries, ZTG40 showed superior performances. In the advanced countries 15g S/100g sorbent is a yardstick of excellency for the sulfur capacity of desulfurization sorbents. Therefore, ZTG40 developed in this study has the desirable physical and chemical properties for fluidized desulfurization of coal gases.

흡연으로 인한 남자고등학교 학생의 생활변화에 대한 조사연구

朴鐘旭,崔榮旭 대불대학교 1995 論文集 Vol.1 No.2

1. Objective The purpose of this investigation is to provide the youths with educational information on juvenile health within a framework of influences of smoking habits upon health, and to examine factors affecting the smoking habits by comparing the obtained information on harmful effects caused by smoking and nonsmoking practices. 2. Method Random sampling of 800 students of high school students of general education and 300 of vocational education has been put to comparison in terms of smoking group in percentage. The degree of acquaintance with the information on health on the part of smokers and nonsmokers has been compared, and the analysis of smoking - related factors has been carried out through X2 test method with an aid of the Statistics Analysis System Package Program. 3. Results 1. 434 students (39.5%) out of 1,100 students in investigation has been proved to be in the category of smokers which break down to 48.2% in high school, 35.2% in middle school, and 16.6% in elementary school in terms of their initiation stage of smoking habit. 2. The motive of their smoking is attributed to curiosity (49.3% of the students) and the amount of smoking is less than 5 cigarettes a day (53.7% of the students). 3. The most frequented place for smoking is lavatories (35.0% of the students), and the primary reason for smoking is attributed to overcoming tedium or killing time. 4. As for their understanding of and interest in smoking, 30.9% of the students responded in favor of smoking. 5. The degree of recognition of harmful ingredients in tobacco shows no difference between the smoking group and the nonsmoking group, and the degree of recognition of harmful effects of smoking upon human health has proved higher in case of the smoking group. 6. The nonsmoking group and general high school students show a higher inclination to further education in college than the smoking group and vocational high school students respectively. 7. The smoking group students show higher probability of friendship or association with opposite sex, of drinking experience, of bigger monthly allowances, and of more chances of extra - curricular activity in a student circle. Reckless preference for smoking out of mere curiosity is observed through this investigation. Positive and incessant guidance of students is recommended at home, school, and the community as well.