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.

Floristic characteristics of vascular plants and first distributional report of Pseudostellaria baekdusanensis M. Kim in Yongneup wetland protected area

Young-Chul Kim,Hyun-Hee Chae,Sang-Heock Oh,Seung-Ho Choi2,Moon-Pyo Hong3,Gi-Heum Nam,Jae-Yoon Choi,Hyun-Sook Choi,Kyu-Song Lee 한국환경생태학회 2015 한국환경생태학회지 Vol.29 No.2

Yongneup wetland protected area, the only high moor in Korea, is a core area to conserve biodiversity. Even though the Yongneup wetland protected area is relatively small, various plant species are distributed in the Yongneup wetland protected area because it includes various habitats showing different environmental gradients. Vascular plants distributed in the Yongneup wetland protected area were identified as a total of 376 taxa that is composed of 73 families, 217 genera, 322 species, 3 subspecies, 44 varieties and 7 forms. For endangered plants designated by the Ministry of Environment, 5 species including Trientalis europaea var. arctica, Lilium dauricum, Halenia corniculata, Lychnis wilfordii and Menyanthes trifoliata were found and 34 taxa were confirmed to be distributed only in the mountainous wetland habitats. Regarding naturalized plants, a total of 11 taxa were distributed, but most of them were distributed in the areas where artificial interference has occurred. And in areas inside the wetlands that are relatively well preserved, 2 species of Bidens frondosa and Erigeron annuus were observed. In this study, the occurrence and distribution of Pseudostellaria baekdusanensis M. Kim, which was recently found in Mt. Baekdu and reported as a new species, were identified in the Yongneup wetland protected area. A wetland is a very vulnerable area to drastic environmental changes and damages to its ecosystem could cause the extinction of rare plant species which are distributed only in the wetlands. Therefore, it is mandatory that current status of the Yongneup wetland protected area is evaluated and actions to prevent rapid environmental changes are taken. Fourteen separate investigations were conducted in 2013 and another four in 2014, to evaluate current status of the Yongneup wetland protected area. These investigations have provided us the basic information for future actions of conservation and restoration.

고 아밀라아제 혈증을 보인 급성 Lithium Carbonate 중독증 1례

홍현상,박흥수,정염성,노왕구 大韓神經精神醫學會 1991 신경정신의학 Vol.30 No.2

Lithium carbonate is a widely used and invaluable drug in the treatment and prevention of manic-depressive illness. However, lithium cardonate may induce multisystemic adverse effects and toxic effects that, when not recognized, may lead to severe, life-threatening complications. The authors experienced a manic patient who showed severe lithium toxic reactions with hyperamylasemia. The patient was 41-year-old woman who had received lithium carbonate treatment for 3 months. The patient's symptoms and signs of toxic reaction had disappeared after hydration, insulin therapy, and hemodialysis.

몇가지 β-lactam 항생제의 약효평가를 위한 Minimum Inhibitory Concentration(MIC)의 비교

洪淳德,金鐘國,李東善,河相哲,李相瀚,李載蘭,安賢淑 慶北大學校 1991 論文集 Vol.51 No.-

In order to screen the new β-lactam antibiotics for clinical use. we were compared MIC values of various β-lactam antibiotics. We also tested the influence of pH, inoculum size, stability of antibiotics in medium and some kinds of media on MIC value. As a result, cefotaxime, cefoperazone, piperacillin, cefamandole, cephaloridine, cephapirin, cefazolin, cephalothin, cephaioylycn were scored in antimicrobial activity of MIC data.

재가노인의 일상생활동작수행의 의존성과 생활만족에 관한 연구

홍춘실,김현리,이상화 충남대학교 의과대학 지역사회의학연구소 1997 충남의대잡지 Vol.24 No.1

This study was conducted to analyse the correlation between the ADL dependency and life satisfaction. Data were collected from the 102 home resident eldery who have no dementia by cognition test. The age distribution f subjects were 65 years and over The data were collected from January 16th to February 15th, 1997. The instruments used for this study were a survey of general characteristics(10 items), physical function(15 items), life satisfaction(20 items). The data were analysed by using an SPSS program and included percentage, t-test, ANOVA & Pearson correlation coefficient. The result of the study are summarized as follows: 1. The mean of ADL dependency score was 5..912 in a possible range of 15 to 60 when 15 indicates high dependency and 60 incicates low dependency. 2. The mean of life satisfaction score was 20.363 in a possible range of 0 to 40 when 0 indicates low life satisfaction and 50 indicates high life satisfaction. 3. The relationship between ADL dependency and life satisfaction for old people in home proved to be of statistically highly negative correlation(r=-.2553 P=.01). 5. General characteristics related to life satisfaction was educational status, household status, economic status, personality, perception of health(P<0.05). In conclusion, it was identified that ADL dependency is the important variable influencing the life satisfaction of the elderly. Therefore, more efforts are needed to decreased the ADL dependency of the elderly to enhance life satisfaction of the elderly.

중ㆍ고등학생 응급처치 지식수준에 관한 실태 조사

홍경용,남철현,최상복,위광복,김기열 韓國保健敎育.健康增進學會 2001 보건교육건강증진학회지 Vol.18 No.3

This study was conducted to examine middle and high school students' knowledge level of first aid, health promotion, and safety. Data were collected from 1.165 students from March 6, 2000 to April 4, 2000. The results of this study are summarized as follows. 1.80.1% of the respondents felt the necessity of first aid. The sources of information about methods of first arid were school (43.9%), mass media (15.6%), and self-study (10.5%). 30.0% of them never leaned the methods of first aid. 2.In the case of obtaining information on first aid through mass media, 58.2% of them got it from TV. 7.3% of them obtained it from magazines, while 5.8% of them got it from newspapers. According to their viewpoints of adequate time to teach the methods of first aid, 38.6% of them thought that the methods had to be taught in the primary school and 25.2% of them thought that they had to be taught in the kindergarten. 24.9% of them replied that the methods had to be taught in the middle school, while 11.3% of them replied that they had to be taught in the high school. 3.The points for knowledge of first aid were 98.29±20.91 on the basis of 150 points (65.5 points on the basis of 100 points). The points showed significant differences in the variables of sex, education level, numbers of siblings, parents' education level, and guardian's occupation.

중년기 이후에 발병한 정신분열증에 대한 고찰

홍현상,채영래,백인호 大韓神經精神醫學會 1991 신경정신의학 Vol.30 No.6

It has been thought that the onset of schizophrenia is limited to youth. However, many European investigators have reported the occurrence of schizophrenia in later life. They have noted that the symptoms found in late-onset schizophrenia are not different from those noted in patients with early-onset schizophrenia. With the advent of the DSM-III-R(1987), there has been a renewal of interest in schizophrenia that arise for the first time in late life. This study was designed to examine some characteristic findings on demographics, clinical features, and treatment response in late-onset schizophrenia. The subjects consisted of 36 patients with late-onset(after 40) schizophrena and 72 patients with early-onset schizophrenia(before 40) by DSM-III-R who were admitted to the Department of Neuropshcyiatry of Kangnam St. Mary's Hospital, Catholic University Medical College from March 1982 to July 1990 The results were as follows : 1) The male to female ratio of the late-onset schizohprenic patients was 1 : 5. 2) The patients with late-onset schizophrenia were more likely to have grandiose delusions and auditory hallucinations than those of early-onset schizophrenia. 3) There was no significant difference in frequenty of clinical symptoms such as loosening of association, inappropriate affect, catatonia and response to neuroleptic treatment among each group. In light of these results, it seems likely that late-onset schizophrenia is somewhat different from, or might be a subtype of, more typical schizophrenia.

강화된 응집이 활성탄 흡착에 미치는 영향

홍성호,김성진,오현제 대한상하수도학회 2003 상하수도학회지 Vol.17 No.3

It is a well known fact that enhanced coagulation can effectively eliminate natural organic matter known as precursor of disinfection by-products. In the study, effect of the enhanced coagulation was investigated by isotherm, kinetic and molecular weight distribution on activated carbon adsorption. The strongly adsorbable fraction was not preferably removed by enhanced coagulation. This conclusion could be drawn by that K value and initial concentration did not show much difference. Therefore, the effect of the enhanced coagulation on isotherm was to reduce the initial concentration over the each adsorbable fraction. When the enhanced coagulation was adapted for pretreatment for activated carbon adsorption the operation period could be extended to 3 to 4 times. The dominant molecular weight (MW) fraction was less than 1,000 for all samples. In conventional coagulation MW bigger than 10,000 was effectively removed. In the enhanced coagulation MW smaller than 1,000 was preferably removed. It was observed that the strongly adsorbable fraction had very strong relationship with the MW less than 3,000.

전압제어형 DC/DC Converter의 평균 모델을 위한 Duty Cycle 모델

홍성수,사공석진,안현식 국민대학교 생산기술연구소 2002 공학기술논문집 Vol.25 No.-

The conventional average model for a pulse width modulator employed in a voltage-mode-controlled pulse width modulated converter tends to be numerically unstable when the on-time duty ratio becomes sufficiently small. This paper presents a new average model for a voltage-mode control modulator that is not susceptible to such numerical problems. The validity of the proposed model is confirmed with cycle-by-cycle simulations using an exact discrete-time model.

Estimating Leaf Area Index of Paddy Rice from RapidEye Imagery to Assess Evapotranspiration in Korean Paddy Fields

Sang?Il Na,Suk Young Hong,Yi?Hyun Kim,Kyoung?Do Lee,So?Young Jang 한국토양비료학회 2013 한국토양비료학회지 Vol.46 No.4

Leaf area index (LAI) is important in explaining the ability of crops to intercept solar energy for biomass production, amount of plant transpiration, and in understanding the impact of crop management practices on crop growth. This paper describes a procedure for estimating LAI as a function of image?derived vegetation indices from temporal series of RapidEye imagery obtained from 2010 to 2012 using empirical models in a rice plain in Seosan, Chungcheongnam?do. Rice plants were sampled every two weeks to investigate LAI, fresh and dry biomass from late May to early October. RapidEye images were taken from June to September every year and corrected geometrically and atmospherically to calculate normalized difference vegetation index (NDVI). Linear, exponential, and expolinear models were developed to relate temporal satellite NDVIs to measured LAI. The expolinear model provided more accurate results to predict LAI than linear or exponential models based on root mean square error. The LAI distribution was in strong agreement with the field measurements in terms of geographical variation and relative numerical values when RapidEye imagery was applied to expolinear model. The spatial trend of LAI corresponded with the variation in the vegetation growth condition.