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Assessment of genetic diversity and distance of three Cicuta virosa populations in South Korea
남보은,김재근,신차정 한국생태학회 2013 Journal of Ecology and Environment Vol.36 No.3
Cicuta virosa L. (Apiaceae) is a perennial emergent plant designated as an endangered species in South Korea. According to the former records, only four natural habitats remain in South Korea. A former study suggested that three of four populations (Pyeongchang: PC, Hoengseong: HS, Gunsan: GS) would be classified as different ecotypes based on their different morphological characteristics and life cycle under different environmental conditions. To evaluate this suggestion, we estimated genetic diversity in each population and distance among three populations by random amplification of polymorphic DNA. Seven random primers generated a total of 61 different banding positions, 36 (59%) of them were polymorphic. Nei’s gene diversity and the Shannon diversity index increased in the order of PC < HS < GS, which is the same order of population size. In the two-dimensional (2D) plot of first two principal components in principal component analysis with the presence of 61 loci, individuals could be grouped as three populations easily (proportion of variance = 0.6125). Nei’s genetic distance for the three populations showed the same tendency with the geographical distance within three populations. And it is also similar to the result of discriminant analysis with the morphological or life-cycle factors from the previous study. From the results, we concluded that three different populations of C. virosa should be classified as ecotypes based on not only morphology and phenology but genetic differences in terms of diversity and distance as well.
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장용석,신차남 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.2
Background : Recently, with the increasing number of foreigners living in or visiting Korea, the need of health care system for them is growing. But there are few studies related with foreigners of Korea. Even though there are 13 International Clinics in Seoul, foreigners still have a lot of difficulties to get good medical treatment. This study is to provide the basic clinical data for the systematic and efficient management of better medical service. Material and method : This study is an analysis of 1,546 patients in International Clinic of Soonchunhyang University hospital from Feb. 1 1999 to Jul. 31 2001. The medical records of patients were reviewed and analyzed by frequency and percentage. Results : By gender grouping, 786 cases(50.8%) were females and 760 cases(49.2%) were males out of 1,546 cases. Those who were aged from 30-39(398 cases, 25.7%) was the largest age group. Americans were 298 cases(9.3%), followed by German with 172 cases(11.1%). The total number or clinic visit was 5,257. According to departments, Internal medicine had 1,003 visits(19.1%), followed by pediatrics with 874 visits(16.6%). The most common diagnosis were Upper Respiratory Infection including common cold with 699 visits(13.3%), followed by vaccination(299 cases, 5.7%) and general checkup(213 cases, 4.0%). During the last 30 months, 2-5 visits of clinic was 839 cases(54.3%), On average patients visited medical doctor 2.8 times during this period. The most visit was 66 times for 1 year of 2000. Those who had been hospitalized were 107 cases, the average days of hospitalization was 4.5 days. During the time of study, 38 cases of operation were conducted and medical problem of 810(15.4%) visits were solved in International Clinic. In conclusion, this study has limit of data because of the lack of relationship among International Clinics. Therefore, further study is necessary under cooperation among International Clinics in the near future.
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대학병원 외국인 진료소 소아환자 의료 이용에 관한 조사 연구
장용석,신차남 순천향의학연구소 2003 Journal of Soonchunhyang Medical Science Vol.9 No.1
Background: Recently, not only sociocultural influence among countries, but also transmission of disease is faster moving than before, as a result of globalization. Therefore, the demand for medical services among foreigners is growing with the increasing number of foreigners living in, or visiting Korea. The need of medical service utilization for foreign children is increasing accordingly. We have provided good medical service to children (1,543 cases, 20.7%) among all the patients (7,443 case) over the past three years. This study is to show the basic clinical data of foreign children who visited the international clinic and to provide better medical service to those patients. Materials and methods: This study is an analysis of 395 patients (1,543 cases) in the International Clinic at Soonchunhyang University hospital from Feb. 1 1999 to Jan. 31 2002. The medical records of patients were reviewed and analyzed by frequency and percentage. Results: By gender grouping, 695 cases (45.0%) were females and 848 cases (55.0%) were males out of 1,543 cases. Those who were between 2-6 years old (662 cases, 42.9%) made up the largest age group. The most frequent visitors were Germans with 180 cases (11.7%), and on average, each person visited 4.0 times. On the other hand, Egyptians were the most visited per capita with a frequency of 17times. The most common diagnosis of Out-patient treatment was upper respiratory tract infection with 502 cases (32.7%), followed by vaccination (296 cases, 19.1%). Whereas, the most common diagnosis of In-patient treatment was pneumonia, 13 cases (38.2%).
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