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생태적 도시계획을 위한 생태기반지표의 개발과 활용에 관한 연구(Ⅱ)
김현수,안근영,장대희 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1
With environmental problems and pollutions accumulated by continuous urban development projects, it is becoming necessary to develop in consideration of environmental effects. On this study, it is suggested the critical point of biotope space factor and the supplement device. Natural ground area ratio is functioned as important factor in urban area. So in region, high-rated in natural ground area ratio, or in new urban development area, it is necessary to get supplement tool for conserving preferentially natural ground area. And it is considerable to ply individual environment planning indicator in case of need. This study has main contents as follows; biotope space factor was applied to actual case, rebuilding housing complex in Cham-sil to diagnosis ecological level and to lead more ecologically sound plan. After considering all the factors there was the critical point in using as just one tool, biotope space factor, so we suggested supplement device to solve this problem for an example, by regional characteristics, biotope space factor and individual environmental planning factor will be used together.
장상피화생과 Helicobactor pylori와의 상관 관계에 관한 연구
이복희,김대수,이현숙,진영주,윤세진,송형근,성노현,정현용,이동호 충남대학교 의과대학 지역사회의학연구소 1994 충남의대잡지 Vol.21 No.2
In 1965 Lauren divided advanced gastric carcinoma into two main types-namely, "intestinal" and "diffuse" type carcinoma, which differ not only morphologically but also in their clinical and epidemiological characteristics. Moreover, a different histogenetic process has been postulated by many authors that intestinal type gastric carcinoma might arise from areas with intestinal metaplasia. Since Warren and Marshall reported the presence of Helicobacter pylori in the stomach in 1983, strong evidence has been obtained that there is a close relationship between Helicobacter pylori and chronic gastritis, atrophic gastritis, intestinal metaplasia, and intestinal type gastric carcinoma. To study the relationship between intestinal metaplasia and Helicobacter pylori infection, we performed gastroscopic biopsies and CLO tests taken from patients with epigastric pain. Only 87 patients with macroscopically suspected antral gastritis were included. The prevalence of intestinal metaplasia in gastric antral biopsies increased from 33.3% in the age group<30 years to 63.6% in the age group 60 years. When all patients were divided into two age groups-namely, (i)<50 years(n=41) and (ii)≥ 50 years(n-=46), intestinal metaplasia was found significantly more often in patients ≥ 50 years. ((i) 39.2%, (ii) 54.3%, p<0.0001). The prevalence of Helicobacter pylori in gastric antral biopsies decreased from 66.7% in the age group<30 years to 62.5%, in the age group in the age group 50 to 59 years. When all patients were divided into the same two age groups-namely(i)<50 years and (ii)≥50 years, the prevalence of Helicobacter pylori did not differ between two groups in a statistically significant way. The mean age of intestinal metaplasia positive patients who were also Helicobacter pylori positive was 48±11.0(mean±S.D.)years, whereas the mean age of intestinal metaplasia positive patients who were Helicobacter pylori negative was 52±9.7(mean±S.D.)years. In conclusion. although our data do not prove a causal relationship between Helicobacter pylori infection and the histogenesis of intestinal metaplasia, we suggest that Helicobacter pylori plays an important role in the development of intestinal metaplasia in the gastric mucosa. Whether Helicobacter pylori has to be present at all times during this process or is only necessary as a 'trigger', needs further research.
배지 종류가 둥근매듭풀(Kummerowia stipulacea (Maxim.) Makino) 기내증식에 미치는 영향
임현정(Hyeon Jeong Im),최현준(Hyeon Jun Choi),송기선(Ki Seon Song),김도현(Do Hyun Kim),오범석(Beom Seok Oh),김상근(Sang Geun Kim),김양수(Yang Soo Kim),송치현(Chi Hyeon Song),이재선(Jae Sun Yi) 한국원예학회 2021 한국원예학회 학술발표요지 Vol.2021 No.10
둥근매듭풀(Kummerowia stipulacea (Maxim.) Makino)은 콩과(Leguminosae) 매듭풀속(Kummerowia)에 속하는 초본성 식물로서 척박한 곳에 잘 자라며 정원용 녹화 식물로 이용된다. 본 연구는 둥근매듭풀의 대량생산을 위한 기내증식 체계 확립을 위하여 배지 종류에 따른 최적 배양 조건을 구명하고자 수행하였다. 둥근매듭풀 종자발아 조건은 양분을 첨가하지 않은 대조구와 MS(Murashige&Skoog medium), 1/2MS배지에 4주간 배양하였다. 그 결과 MS배지에서 평균발아일수가 짧았고, 모든 배지에서 80% 이상 높은 발아율을 보였으며, 특히 MS배지에서 91.4%로 가장 높았다. 둥근매듭풀 기내배양묘 배양 조건은 양분을 첨가하지 않은 대조구와 MS(Murashige&Skoog medium), B5(Gambong O.L medium), WPM(Lloyd&Mccown medium), SH(Schenk&Hildebrandt medium), N6(CHU medium), NM(Nitsch medium)배지에 4주간 배양하였다. 그 결과 배지종류에 따라 차이를 보였고, 둥근매듭풀 기내배양묘는 WPM배지에서 신초 길이 (Shoot length) 5.96cm, 엽 수(Leaf number) 32.50개로 가장 우수하였고, NM배지에서 뿌리 발생률(Root ratio)이 13.8개로 가장 높았다. 특히, N6, B5배지는 배양 2주차부터 모든 엽이 갈변하였고 줄기 생장이 정지하여 둥근매듭풀 기내배양묘 생육에 적절하지 않았으며, WPM배지는 둥근매듭풀 기내배양에 효과적이었다. 이러한 연구결과는 둥근매듭풀의 산업화 및 대량증식을 위한 기초자료로 활용될 수 있을 것으로 판단된다.