수종의 근관세척액과 Listerine의 항균성 비교 연구

김영훈,강민경,최은경,양소영,양인석,강인철,황윤찬,황인남,오원만 대한치과보존학회 2009 Restorative Dentistry & Endodontics Vol.34 No.6

본 연구는 여러 가지 근관세척액(NaOCl, CHX, EDTA)과 구강세정제로 사용되는 Listerine을 근관감염균주인 Porphyromonas gingivalis와 Enterococcus faecalis를 상대로 항균효과를 비교하고 Listerine이 근관세척액으로 사용가능한지를 확인하고자 시행하였다. 본 연구에서는 Porphyromonas gingivalis ATCC 3327과 Enterococcus faecalis ATCC 29212의 표준균주를 사용하였다. 실험을 위한 근관세척제로 0.1%, 0.2%, 1%, 2% Chlorhexidine(CHX)과 0.5%, 1%, 2.5%, 5.25% NaOCl, 0.5M EDTA(18.6% EDTA). 그리고 Listerine원액을 이용하였다. 항균효과의 비교는 액체배지상에서 균주의 혼탁도와 한천 확산법을 이용한 억제대 비교로 하였다. 모든 실험군은 대조군과 비교시 근관내 균주에 항균성을 나타냈다(p < 0.001). 모든 농도의 NaOCl, CHX, 그리고 EDTA는 실험균주에서 높은 항균성을 보였다. 모든 실험에서 Listerine은 다른 근관세척제에 비해 낮은 항균성을 보였다. 결론적으로, Listerine이 E. faecalis와 P. gingivalis에 대해 항균성을 보이나, 일반적으로 사용되는 근관세척 액에 비해서는 현저히 낮은 항균성을 나타냄으로 근관세척 액으로 사용은 적합하지 않음을 나타냈다. The purpose of this study is to compare the antibacterial effect of Listerine on two microorganisms (P. gingivalis and E. faecalis) with various root canal irrigants (NaOCl, CHX, EDTA) and to identify possibility of using Listerine as a root canal irrigant. Porphyromonas gingivalis ATCC 3327 and Enterococcus faecalis ATCC 29212 were used in this experiment. For the test irrigants, 0.5%, 1%, 2.5%, 5.25% NaOCl, 0.1%, 0.2%, 1%, 2% CHX, 0.5M EDTA (18.6% EDTA) and Listerine were prepared. Distiled water was used as control. Two methods-1) Comparison of turbidity in broth and 2) Agar diffusion test-were used to determine the extent of antibacterial effect of Listerine and to compare it with that of NaOCl, CHX, and EDTA. All solutions tested were effective against two bacterial strains compared with control (p < 0.001). Any concentration of NaOCl, CHX, and EDTA showed similarly high effectiveness against all bacterial strains. In all experiment, Listerine showed significantly low antibacterial effect compared with the other root canal irrigants (p < 0.05). In conclusion, the results reflect remarkably low antibacterial effect of Listerine as compared with root canal irrigants in general so it is not suitable for the root canal irrigant.

한국의 펀드 의결권 행사에 대한 연구

황소영 ( So-young Hwang ) 건국대학교 법학연구소 2012 일감부동산법학 Vol.7 No.-

As the portion of indirect investment in Korean stock market has increased, the attention to the voting right of indirect investors, such as fund, has also grown. And yet, most of investing fund of asset management companies have not been interested in exercising the voting right. Moreover, even if the institutional investors participate in exercising it, they just act as so-called `yes men` to the itinerary, therefore, it is very hard to expect the positive effect of voting right. The purpose of this study is to propose the desirable ways to promote institutional investor`s exercising the voting right. In the second chapter followed by introduction, the jurisprudential significance and pattern of voting right would be studied. In the next chapter, the current condition of how institutional investors exercise their voting right would be examined. In the fourth chapter, the reasons of why Korean institutional investors are not interested in the voting right would be investigated. In the final chapter, the ways of solving the problem of voting right would be proposed.

시계열분석기법을 적용한 철근콘크리트 구조물의 중성화 진행속도추정에 관한 연구(Ⅱ)

황소영,강병희 동아대학교 건설기술연구소 2001 硏究報告 Vol.25 No.1

Concrete Carbonation is main factors concerned about durability of RC Structure. Concrete Carbonation is under researching and studying. It has been almost announced that the factors affecting the rate of carbonation and the age of the building. But There is no suitable method to evaluate the rate of Carbonation in Reinforced Concrete Structures to expect durability and life expectancy. In this study, Analysis of Life-data based on Reliability Engineering is explained with this trend. It is performed that the basic study to evaluate Service life applying Simple Moving Average among the Time-Series analysis which use time-function. Expectation formula was made by Simple Exponential Smoothing different from Smoothing coefficient. Expection value through Simple Moving Average and the Expectation formula is compared and analysed with theoretical value based on existing formula. The aim is to suggest application possibility of these statistics method in durability design of concrete.

미토콘드리아 DNA의 제한요소 분석법(RFLP)에 의한 느타리 버섯의 분류

황소영,정경숙,이미경,조남영 대전대학교 기초과학연구소 1996 自然科學 Vol.7 No.2

황악산에서 채집된 느타리 버섯의 분류를 위하여, 4종류의 느타리과에 속하는 버섯들과 함께 미토콘트리아 DNA를 분리하여 여러 제한효소로 처리 후 나타나는 절편들의 양상을 비교하여 계통분석을 수행하였다. 여러 제한효소 중 4가지의 제한효소를 선택하여, 절편을 얻은 후 NTSYS-pc program을 사용하여 분석한 결과, 채집된 버섯은 형태학적으로 느타리와 유사하였지만, RFLP 법으로 판단할 때 오히려 사철느타리와 더 연관성이 있는 것으로 나타났다. 따라서 보다 객관적인 분류를 위하여 형태학적 분류만으로는 한계가 있고, 분자생물학적인 분석 등 다양한 기준에 의해서 수행되어야 한다고 판단된다. To identify the strain (TUM004) which was isolated from Mt. hwangak, the restriction enzyme analysis of mitochondrial DNA was accomplished using four different strains of Pleurotus as a standard strain. Pattern of fragments generated by 4 different restriction enzymes (BamHl, EcoRl, Hindlll, Xdal)was analyzed by using NTSYS-pc program. Results showed that TUM004 was more related to Pleurotus florida rather ,than to Pleurotus ostreatus. Results also imlpy that RFLP of mitochondrial DNA is a good classification system to identify the unknown strain to the genus level.

e-Learning에서의 효율적인 온라인학습 전략 탐색

소훈,황영성 釜山大學校 附設 體育科學硏究所 2007 體育科學硏究所 論文集 Vol.23 No.2

본 연구는 e-Learning의 등장으로 많은 변화를 요구받고 있는 교육 현장의 당사자인 교수자와 학습자 측면에서 성공적이고 효율적인 온라인 학습전략의 기본적인 틀을 제시하는 것으로 다음과 같은 전략적인 시사점을 도출하고 있다. 첫째, 학습자의 만족과 지속적인 학습을 위한 체계적인 콘텐츠의 개발이 우선되어야 할 것이다. 둘째, 교수자와 학습자 간의 활발한 커뮤니케이션을 지원하는 솔루션이 확보되어야 한다. 셋째, 교수자와 학습자의 상호작용을 통한 친밀한 관계형성이 필수조건이다. 넷째, 다양한 매체 전달 양식 중, 학생들이 선호하는 매체의 표현방법의 설정이다. 따라서 다양한 매체 중 학습자 특성에 맞는 매체 유형을 선택하여 제공한다면 학습자의 선호도와 만족도를 이끌어 낼 수 있는 방법이 될 것이다.

飮酒에 關한 社會醫學的 調査

黃龍敍 서울大學校 保健大學院 1969 公衆保健雜誌 Vol.6 No.1

Drinking seems to be one of essential elements in social living. It is well known that drinking on adequate amount of alchol may be helpful. While overdrinking produces numerous undesirable effects such as loss of proper judgement, understanding and harzardous to health, etc. and even causes of unexpected accidents. A socio-medical survey on drinking was conducted during the period of months from July to October, 1968 on workers applied to go aboard, physical laborers, office workers, school teachers, drivers, entertainment girls, merchants, college students, and aged men, with total number of persons 1,159. As the result of this survey, following conclusions were obtained: 1. Rate of tolerated attitude of men toward women's drinking was 10.0% and opposition rate was 37.9% while that of women toward men's drinking were 10.9% and 10.9% respectively. Out of the total population surveyed, 78.2% were drinker. 2. Out of the total aged men, 49.7% were drinker and among these 34.1% were claimed to be alcoholics. 3. Among the reasons for drinking and not drinking, "because of business" and "because of physical condition" were most frequent. 4. Among the place of drinking, dai-po-jip was most popular. In paying drinking expenses occasionally paid by himself ranked first, drinking expenses were under one tenth of income in majority of drinkers. 5. Majority drinkers drink in evening and night. While many of aged persons drink in day-time. Out of the total drinkers, 30.7% used to change drinking places 2 times or more 6. Out of the total drinkers, 11.2% were alcoholics and more drunken frenzy was shown in case of women then in men. 7. The most common liquor was mak-gul-ri beer and so-ju came next in order. 8. Out of the total, 39.0% complained headache, vomition and hang-over in the nextday of drinking.

전통 흙벽과 조립식 벽체의 성능 비교에 관한 기초 연구

황용운(Hwang Yong-Woon),김태곤(Kim Tae-Gon),최소영(Choi So-Young) 대한건축학회 2011 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.31 No.2(계획계)

There are many demerits in traditional earth wall.(week on water, construction cost is expensive, difficult to maintain, construction duration is longer than modern architecture it etc.) So. the purpose of this study is supplement with demerits of traditional earth wall and develop new pre-fabricating wall and then performance compare between traditional earth wall and pre-fabricating wall in various test which are insulation test, freeze & fusion test, impact test, weight measure etc.(The size of materials for an experiment is 69㎝×105㎝.) As the result of various test : It proved that pre-fabricating wall is better than traditional earth wall through experiment.

고액 상평형의 측정과 추산 연구

박소진,박영신,황태원,한규진,오종혁,원동복 忠南大學校 産業技術硏究所 2001 산업기술연구논문집 Vol.16 No.2

정적인 융점측정 방법으로 benzene+n-dodecane, cyclohexane+phenol, phenol+water, water+sulfolane 및 diethylcarbonate+nitrobenzene계에 대한 고액 평형을 측정하였다. 측정된 고액평형 데이터는 문헌값과 modified UNIFAC에 의해 예측된 값과 비교하였으며, 추산값과 실험값은 ±1.61K 범위에서 잘 일치하였다. 본 연구에서 고찰된 diethylcarbonate의 융점은 기존문헌치와 큰 편차를 보여 재검증이 필요하다. Solid-liquid equilibrium(SLE) data were measured for benzene+ n-dodecane, cyclohexane+phenol phenol+water, water+sulfolane, and diethylcarbonate+ nitrobenzene systems by using static melting point measuring method. Measured SLE data were compared with the literature values and also compared with the values predicted by modified UNIFAC(Dortmund) equation. The experimental results are in good agreements with the published and estimated values, and the average deviation between the experimental values and the calculated values is ±1.16K. The measured melting point of diethylcarbonate shows some difference from literature value, and it will be certified through other experimental data for different systems.

재택진료 잠재적 이용자의 혈압수준에 따른 뇌혈관 질환 위험요인 분포

송희영,박소미,황성오 대한기초간호자연과학회 2004 Journal of korean biological nursing science Vol.6 No.2

Purpose : This study was undertaken to investigate bio-medical and behavioral risk factor of stroke according to the level of blood pressure among the prospective tele-health users. Method : A descriptive study was conducted using interviews with a structured questionnaire. Of the households in the village, 24 households were selected for inclusion in the study. Among all of the residents from these households, a total of 48 residents who completed all the blood tests as well as the questionnaire. Results : Among bio-medical risk factors including demographic characteristics, physiologic variables, and health history, only triglyceride (TG) was significantly different among normal, prehypertension, and hypertension groups (F=3.78, p<.05). However, regarding behavioral variables, those who were classified as prehypertension and hypertension group reported more frequent drinking, those who were in prehypertension group reported highest scores of stress and lowest frequency of exercise, and those who were in normal and hypertension group showed higher scores of interest on health and lower scores of perceived seriousness of disease and health knowledge than those who were in prehypertension group. Conclusion : Identification and implementation of modifiable risk factors of stroke according to the level of blood pressure are crucial for health care utilizing tele-medicine.

Helicobacter pylori 감염과 위선암의 발생 사이의 연관성에 관한 최근 연구 : a Review of the Literature

오소영,신애선,황승식,유근영 한국역학회 2002 Epidemiology and Health Vol.24 No.2

Purpose : Stomach cancer is a major cancer in the world as well as in Korea. Helicobacter pylori infection was suggested causing atropic gastritis, but there has been a debate on the association with the gastric adenocarcinoma. We reviewed recent literatures and meta-analyses on the association between Helicobacter pylori infection and the development of gastric adenocarcinoma. Results : The animal experiments suggested that Helicobacter pylori is a causative agent of gastric adenocarcinoma. Meta-analyses on the relationship between Helicobacter pylori infection and gastric adenocarcinoma showed increased risk in infected person, but the strength of association was varied with study design, characteristic of study participants and the nature of tumors. Conclusions : Recent study results suggested that Helicobacter pylori is a necessary causative agent for development of gastric adenocarcinoma. Assessment of the association between Helicobacter pylori infection and other related with gastric cancer risks and the effects of the eradication therapy of Helicobacter pylori infection on the prevention of gastvic cancer need further evaluation.