Investigation of the April 2000 forest fire damage in Kang-won Province, Korea, using RADARSAT data

Kang, Sung Chul,Seo, Jin Won,Lee, Tae Hee,Park, Sang Eun,Hong, Suk Young,Moon, Wooil M. 대한원격탐사학회 2000 International Symposium on Remote Sensing Vol.16 No.1

The series of forest Fires in Kangwon Province in April, 2000, were one of the mast serious ones in the Kang-won Province in recent years. The fire damaged areas are extensive and this paper investigates the utility of the satellite image data, particularly the RADARSAT SAR data. One of the main objectives of this study included evaluation of potential usefulness of the C-band RADARSAT data in the detection of forest fires in mountainous areas. Among several fire damaged sites, the area near Samchuk (city) was selected as the main study area and mufti-temporal RADARSAT(raw) data were acquired and the processed results were comparatively investigated with the IRS-1c data acquired shortly after the fire. To identify the burnt area from the undamaged background in the optical imagery, supervised classification and NDVI processing were carried out and tested with the IRS-1C data. For this experiment, several sets of raw RADARSAT standard and Fine mode (S4, F3, ascending orbit) data were processed and the final image was formed. In addition to the final image, sigma nought (σ°) was catnputed and compared for the burnt area against the undamaged areas. Because of the steep slopes in the study area and subsequent deviation from the flat surface scattering models, the fire scars in the sigma nought (σ°) image were not apparent. However, fire scars are slightly detected in the difference and ratio images obtained from the signal intensity data acquired at different dates (bath before and after fire). Texture analysis of the image data including the burnt areas were carried out using the Multiplicative Markov Random-Field (MMRF) algorithm. The detection of the fire damaged area from both standard mode and fine mode RADARSAT was not as straightforward as in optical data. However, Previous studies with ERS-1 S_AR and RADARSAT data in Indonesia and in the North American Plains indicate that C-band SAR data provide us with an effective tool for studying the forest fire damages. However, the application of C-band SAR data to the analysis of the forest fire areas requires careful processing of the data with realistic scattering models.

The Evolving Policy Debate on Border Closure in Korea

Su-Jin Kang,Jihyun Moon,Heewon Kang,Heekyoung Nam,Sangwoo Tak,Sung-Il Cho 대한예방의학회 2020 Journal of Preventive Medicine and Public Health Vol.53 No.5

302 Copyright © 2020 The Korean Society for Preventive Medicine J Prev Med Public Health 2020;53:302-306 • https://doi.org/10.3961/jpmph.20.213 The Evolving Policy Debate on Border Closure in Korea SuJin Kang1, Jihyun Moon2, Heewon Kang1, Heekyoung Nam3, Sangwoo Tak1, Sung-il Cho1,3 1Institute of Health and Environment, Seoul National University, Seoul, Korea; 2Samsung Advanced Institute of Health Science and Technology, Sungkyunkwan University, Seoul, Korea; 3Department of Public Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, Korea Brief Report Objectives: In this paper, we aimed to investigate the evolving debate over border closure in Korea during the coronavirus disease 2019 (COVID-19) pandemic, to address the main themes associated with border closure, and to discuss the factors that need to be considered when making such decisions. Methods: We collated and reviewed previously conducted review studies on border closures during infectious disease outbreaks to derive relevant themes and factors. Results: According to our systematic review on border closures and travel restrictions, the effects of such containment efforts are limited. We suggest considering the following factors when determining whether to impose border closure measures: (1) disease characteristics, (2) timeliness of implementation, (3) transmission delay and the basic reproduction number, (4) globalization and pandemics, and (5) social and economic costs. Conclusions: Our assessment indicates that the effects of border closures are at best temporary and limited. Alternative measures must be contemplated and implemented to suppress the spread of COVID-19 in particular and infectious diseases more broadly.

서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)

김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1

In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.

배구 지도자 리더십 유형이 선수 만족도에 미치는 영향

강유원,이상호,최영문 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1

1. Forms of leadership that according to each school(middle & high). There are meaningful difference of training and instruction between middle and high school. And the study tells that high school students perceived them(training and instruction) more than middle school students. 2. Forms of leadership that according to each gender(male & female). According to each gender, the meaningful difference of leadership style was shown. And it revealed that female athletes perceived the social support more than male athelets. 3. Forms of readership and degree of athlete's contentment that according to each school. In the interrelation between the leadership style and the contentment degree of the athletes each school, there are high relations in the game contentment, role contentment, team and athlete's contentment, when the training and instruction style refer to. And game contentment when democratic type refers to. There are, however, minus relations in the game content ment, when autocratic behavior style refers to. And also, there are high relations in every part when the social support style and positive feedback style refer to. In the case of the athletes who are the high school students, the high relations revealed in game contentment, rolecontentment, team contentment and athlete's contentment, when the training and instruction refer to. And there are high relations in every part when democratic type, social support type and positive feedback type refer to. However, there are minus relations in every part. 4. Forms of readership and degree of athlete's contentment that according to gender. In the interrelation between the leadership and the athlete's contentment that based on the sex, there are high relation in game , team contentment, role contentment, degree of athlete's contentment for the male athletes when the training and instruction style refer to. And there are high reations in game contentment, team contentment, role contentment, degree of athlete's contentment when the democratic behavior style refers to. And also, there are high relations in every part when social support style and positive feedback type refer to. For the female athletes on the other hand, there are high relations in game contentment, role contentment, degree of athlete's contentment when the when the training and instruction refer to. And there are high relations in game contentment, team contentment, degree of athlete's contentment when autocratic behavior style refers to. And there are high relations in every part when social support type and positive feedback type refer to. However, there are minus relations in the role contentment, team contentment, degree of athlete's contentment when the autocratic behavior style refers to.

Str.thermophilus 510의 β-Galactosidase 유전자의 Cloning 및 대장균에의 발현

강국희,민해기,이호근,성문희 成均館大學校 科學技術硏究所 1992 論文集 Vol.42 No.2

Chromosomal DNA from Str. thermophilus 510 was purified and cleaved with the restriction enzyme PstI. Chromosomal DNA was ligated to pBR322 for transformation into E. coli JM109. A β-galactosidase positive clone was detected by its blue color on a medium supplemented with 5-bromo-4-chloro-3-indolyl-β-D-galactoside. This transformat possessed a single plasmid, designated pSK 001, which contained, in addition of the vector DNA, A 7.0Kb Pst I insertion fragment coding for β-gal activity. A restriction enzyme map of pSK 001 was consist of Hind Ⅲ, EcoR I, Bgl Ⅱ, Sal I, Pvu Ⅱ, etc. An extract from E. coli JM109 (pSK001) contained a β-gal protein with the same electrophoretic mobility as the β-gal from Str. thermophilus 510.

馬山港 活成化方案에 관한 硏究

姜龍洙,河文植,李相斗,朴起東 昌原大學校 産業經濟硏究所 1984 産經硏究 Vol.1 No.-

치과진료실에서 황색 포도구균의 감염유형 분석

문상은,이동근,권경환,김강주 大韓顎顔面成形再建外科學會 2003 Maxillofacial Plastic Reconstructive Surgery Vol.25 No.1

To investigate the cross contamination in the dental clinic, Staphylococcus aureus, the pathogen in acute pyogenic infection and one of the important microbes causing nosocomial infection, was isolated from the mouth and anterior nare of healthy personnel and patients and the air in the dental clinic. The patterns of antibiotic susceptibility of the isolated staphylococci were examined. mecA gene from the MRSA was detected by polymerase chain reaction (PCR). The isolation rate of S. aureus in the dental clinic was the highest in the mouth of dentists (29.4%) and the lowest in the air of the dental clinic (1.3%). In the study of PCR, MRSA and some methicillin susceptible staphylococci had mecA positive gene. These results suggest that staphylococci in the dental environment might be one of the important causes of nosocomial infection in the dental clinic.

수종의 천연물이 원내감염균에 미치는 영향

문상은,이동근,김강주 大韓顎顔面成形再建外科學會 2002 Maxillofacial Plastic Reconstructive Surgery Vol.24 No.6

To investigate the cross contamination in the dental clinic, Staphylococcus aureus, the pathogen in acute pyogenic infection and one of the important microbes causing nosocomial infection, was isolated from the mouth and anterior nare of healthy personnel and patients and the air in the dental clinic. The patterns of antibiotic susceptibility of the isolated staphylococci were examined. The n-butanol and methanol extract of Caesalpinia sappan L. inhibited growth of the 15 MRSA isolates at the concentrations as low as 630 ㎍/㎖ and 310㎍/㎖. The antibacterial effect of volatile substances of C. boreale on the 15 MRSA isolates was shown at the concentration of 1.4 ㎕/㎖. However, the growth of 5 strains of MRSA was not inhibited at the concentration of 1.4 ㎕/㎖. The antibacterial effect of berberine on 20 strains of MRSA was shown at the concentrations less than 200 ㎍/㎖. These results suggest that staphylococci in the dental environment might be one of the important causes of nosocomial infection in the dental clinic, and the extracts of Caesalpinia sappan L., volatile substances from C. boreale and berberine might be candidate substances for antibacterial activities to the MRSA in the dental clinic.

돼지설사 원인균 E. coli의 생육저해에 대한 유산균의 효과

姜國熙,成文喜,方泰瑛,龍球淵,林讚洙 成均館大學校 科學技術硏究所 1985 論文集 Vol.36 No.1

E. coli A_2 diarrhea causing bacteria of pigs was anaerobically inoculated with 10^5/ml into prereduced YS medium (10% reconstituted skim milk+0.1% yeast extract), and then lactic acid bacteria were inoculated with 10^5/ml and 10^7ml into previous inoculated samples of E. coli A_2. Inoculated samples cultured at 37℃, were tested to determine changes in viable numbers of organisms and pH. The experimental results are summerized as follows: 1. In the mixed culture medium of 10^5/ml E. coli A_2 and L. casei YIT9018, E. coli A_2 decreased after 36 hours from incubation. 2. In the mixed culture medium of 10^5/ml E. coli A_2 and L. acidophilus, E. coli A_2 drastically decreased after 24 hours from incubation and was almost disappeared after 72 hours from incubation. 3. In the mixed culture medium of 10^5/ml E. coli A_2 and L. bulgaricus, E. coif A_2 drastically decreased after 24 hours from incubation and was almost disappeared after 72 hours from incubation. 4. In the mixed culture medium of 10^5/ml E. coli A_2 and Str. thermophilus, E. coli A_2 decreased after 12 hours from incubation. 5. When the pH value of the mixed culture, was, 4. 5 below, E. coli A_2 decreased.

의료이용통계 일치도에 관한 연구

강성홍,남문희,임지혜 인제대학교 2009 仁濟論叢 Vol.24 No.1

This study was aimed to investigate medical utilization statistics of type and it’s reliability. Second objective is to suggest methods to improγe reliability of patient survey statistics. We collected patient survey data, health insurance data, discharge summary data in 2005 and reliability of medical utilization statistics analyzed using rate of diagnosis. We found correspondence rate of diagnosis among health insurance statistics, patient survey statistics, discharge injury survey statistics was not high. The rate of Mental and behavioral disorders was 5.0% in health insurance statistics, was 2.4% in patient survey statistics, was 1.3% in discharge injury survey statistics. The rate of diseases of the respiratory system was 10.3% in health insurance statistics, was 8.5% in patient survey statistics, was 12.1% in discharge injury survey statistics. Based on these results, to improvement reliability of medical utilization statistics, this study suggest public health statistics system building, performance of patient survey four times yearly, securing expert.