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.

韓國 小農의 社會·經濟的 特性과 發展方向

鄭址雄,李瓆鉉,金在浩 연세대학교 교육대학원 1977 연세교육과학 Vol.11 No.-

The small farmer development is highlighted in the 1970's as an imperative task of rural development. Prior to planning any development programs for the small farmers, the baseline survey is needed to investigate the economic and socio-psychological characteristics of them in comparison with the middle and big farmers in relative sense. Catering such a need, this study aims at indentifying the small farmers' economic and socio-psychological characteristics and drawing some implications for their development. In addition to the documentary analysis, 176 farm households and 22 landless farm laborers were interviewed and the data was analyzed by means of analysis of variance and chi-square and other simple descriptive statistics. The subjects were total villagers of typical four villages located at southern Yong In County about 70 kilo meters south of Seoul, and all the farm households were grouped into four in order of their annual household income: big farmers(Upper one fourth), middle farmers(second one fourth), marginal farmers(third 25 percent), and poor farmers (lowest 25 percent). The major findings of the study are : 1. The small farmers had smaller size of assets estimated by current cash in 1975 than those of bigger farmers, but their paddy-upland ratiov tenant land ratio, irrigated land ratio, and items component ratio (land item, farm machinery item, livestock itemof total assets estimated were not different significantly. 2. The input level for getting a unit farm roceipt of the small farmers was higher than that of bigger farmers, while labor and land efficiency of the small farmers was lower than the bigger ones. 3. The size of the farmers income was net related with their technical level, but related to their communication exposure. 4. The level of achievement motive of the farmers was very positively related with their income: the small farmers had lower motive to live hotter than bigger ones. Based on the foregoing results, the following implications can be drawn : 1. The limitation of capital resource is one of the major factor affecting farming efficiency, so that government agricultural loam system should be adjusted for solving capital rationing faced by small farmers. 2. The conditions of tenant farming are not reasonable to small farmers and it is needed to adjust land tenant system which is suitable for the development stages of Korean economy. 3. The land amelioration should be more emphasized for small farmers' land than the bigger ones. 4. Livestsock farming and off-farm activities should be strengthened for small farmers in order to raise their income. 5. Educational programs to develop the small farmers' achievement motive and their farm management skills should be offered by any institutions related to rural development. 6. An integrated agricultural and rural development program at central and local levels is needed for solving small farmers' problems which are interdisplinarily related.

Ⅲ급 부정교합의 수술-교정 치료시 상악 소구치 발치가 치열궁 폭경 변화에 미치는 영향

이신재,홍성준,김영호,백승학,서정훈 대한치과교정학회 2005 대한치과교정학회지 Vol.35 No.1

본 연구에서는 Ⅲ급 수술-교정 치료 방법에 영향을 미치는 치열 상의 요소를 파악함으로써 술전 교정시 상악 소구치 발치와 비치의 판단에 필요한 임상적 정보를 얻고자 골격성 Ⅲ급 부정교합 환자의 수술-교정 치료시 흔히 선택되는 상악 제1소구치 발치로 치료된 군과 비발치로 치료된 군 간의 치료전/후 상/하악 개별 치아 이동 양상과 치열궁 폭경의 변화 양상을 비교 분석하였다. 이를 위하여 비발치로 Ⅲ급 수술-교정 치료를 마친 환자 (24명) 와 술전교정 치료시 상악 제1소구치가 발치된 환자 (31명) 의 치료 전/후 모형 상에서 개개 치아의 근원심/협설측 각도변화와 상/하 치열궁 폭경의 변화를 측정한 후, 두 군 사이의 교정적 치아 이동 양상을 비교 분석한 후 상/하 치열궁의 조화를 이루는데 필요한 치열궁 폭경의 변화와 이에 기여하는 치아 변위와의 관계를 분석하기 위하여 상관 분석과 회귀 분석을 시행한 결과 발치 군은 비발치 군에 비하여 상악 치열궁 폭경의 감소가 컸으며, 이는 상악 구치의 inclination 감소에 크게 영향 받은 것으로 관찰되었다. 하악 치열에서는 inclination의 증가와 폭경의 증가가 있었으나, 비발치/발치군간의 차이는 유의하지 않았다. 본 연구의 결과 결론적으로 Ⅲ급 수술-교정 치료시 술전 상악소구치 발치는 상악 구치부 치열궁 폭경의 감소에 크게 영향을 미치므로, 상악 소구치 발치에 대한 판단은 상/하악 치열궁의 폭경 및 구치부 경사도 문제와 연계하여 고려해야 할 사항으로 생각되었다. Collective changes caused by orthodontic tooth movement evaluated in a specific treatment modality could give suggestive information on the specific treatment strategy. The aim of this study was to investigate retrospectively the characteristics of the orthodontic tooth movement during surgical-orthodontic treatment in order to provide an effective presurgical orthodontic treatment planning for the maxillary premolar extraction modality in the skeletal Class Ⅲ malocclusion patient. Pre- and post-treatment dental casts of skeletal Class Ⅲ malocclusion patients with nonextraction (N=24) and the maxillary premolar extraction (N=31) were collected. The angulation and inclination measuring gauge (Invisitech Co. Seoul, Korea) was used to evaluate the orthodontic tooth movement. The changes in the maxillary and mandibular dental arch widths were also measured from the canines to the second molars. As a result, more palatal Inclination change in the maxillary dentition was found with the premolar extraction modality than with the nonextraction modality. Linear regression analysis showed that the inter-arch width coordination was mainly due to the inclination changes of maxillary posterior teeth. We conclude that the indications and proper treatment planning for surgical-orthodontic treatment in skeletal Class Ⅲ malocclusion with maxillary premolar extraction could depend partly on the magnitude of the transverse inter-arch coordination especially in the maxillary dentition.

소아 신장질환에 대한 임상 통계적 관찰 : 11년간의 고찰 An Eleven-Years Experience

이재호,정기영,유재홍,최동석 충남대학교 의과대학 지역사회의학연구소 1989 충남의대잡지 Vol.16 No.1

Statistical analysis of renal inpatients admitted to the department of pediatric ward of Chungnam National University Hospital from 1978 to 1988 was performed according to their annual incidence of each disease, disease pattern, and age distribution. Renal diseases were found in 628(6.16%) among 10,194 total inpatients from 1978 to 1988. Male to famale ratio of renal disease was 1.99 to 1. Annual incidence of acute glomerulonephritis was decreased but no significant change was noted in the incidence of nephrotic syndrome and urinary tract infection. Acute glomerulonephritis was the leading cause of admission in all age groups and it constituted 28.82% of total renal patients. It was followed by nephronic syndrome(23.24%), urinary tract infection(16.56%). Wilms’ tumor(7.64%), Henoch-Schonlein nephritis(6.21%), and recurrent hematuria(4.45%). Urinary tract infection showed relatively high incidence in infancy and acute glomerulonephritis and nephrotic syndrome were high in older age group. Renal diseases were most frequently found in 7-9 years old age group. Chronic renal failure and recurrent hematuria were relatively frequent in over 12 years old age group.

인코넬 690 합금의 크리프거동

황경충,윤종호,최재하,김성청 한국공작기계학회 2002 한국생산제조학회지 Vol.11 No.4

Inconel 690 alloy has widely been used in power plant and high temperature facilities because it has high thermal resistance and toughness. But, we have little design data about the creep behaviors of the alloy. Therefore, in this study, an apparatus has been designed and built for conduction creep tests under constant load conditions. A series of creep tests on Inconel 690 alloy have been performed to get the basic design data and life prediction of inconel products and we have gotten the following results. First, the stress exponents decrease as the test temperatures increase. Secondly, the creep activation energy gradually decreases as the stresses becomes bigger. Thirdly, the constant of Larson-Moller parameters on this alloy is estimated about 10. And last, the fractographs at the creep rupture show both the ductile and the brittle fracture according to the creep conditions.

고속철도 건설과 관련하여 지하수위 분포를 이용한 지하수환경 변화 분석

함세영,류상민,정재열,강래수,문상호,황학수 부산대학교 환경문제연구소 2002 環境硏究報 Vol.20 No.-

This study is aimed for estimating change of groundwater environment in relation to constructing Honam express railway in Cheonan-Iksan section. This study was conducted by measuring depth to water and by calculating groundwater level anomaly. Depth to water ranges from 0.03 to 21.1 m and ranges from 0.17 to 227.95 m mean sea level. Distributions of depth to water, of groundwater elevation and of groundwater level anomaly were analyzed to estimate water-level change due to express railway construction. High water-level anomaly section is found in Jangjae(Cheonan)-Daejeon-Iksan section with anomaly index 85.39. High water-level change is anticipated in 22.22-24.19 km, 25.1-25.53 km, 25.53-26.46 km, 26.46-27.77 km, 28.7-29.29 km, 30.18-30.26 km, and 30.26-32.4 km sections from the start of Jangjae(Cheonan).

절삭공구 팁의 TiCN코팅 특성

황경층,윤종호,최재하,김성청 충북대학교 산업과학기술연구소 2002 산업과학기술연구 논문집 Vol.16 No.2

As the machine tool industry progresses, the performance of cutting tools also needs to be of good quality and specialized. If the existing metal cutting tool tip is coated properly, its life would be longer and the machining of a difficult-to-cut material also could be possible. For the development of the high quality cutting tool, the applicabilities of TiCN coating deposited by PVD on the cutting insert were experimentally investigated. The various analyses such as SEM micrograph, XRD pattern, AFM surface morphology, and hardness were performed to cross-check the possibility and availability of TiCN coated tool in the field.

과일과피로부터 폴리페놀 분리에 따른 생리기능연구

안봉전,이진태,곽재훈,박정미,이진영,박태순,손준호,최청 경산대학교 생명자원개발연구소 2003 생명자원과 산업 Vol.7 No.-

Biological activities and anticarcinogenicity of Korean Pear peel were investigated. Electron donating activity and superoxide dismutase(SOD)-like activity of fraction Ⅱ, Ⅲ were up to 90% and 50-60% at 50ppm, respectively. Inhibitory effects on xanthine oxidase were about 80% at 50ppm, breast adenocarcinoma was about 60% at 2,000 ppm, higher Ⅲ than Ⅱ. Inhibitory effect on prostate adenocarcinoma was about 23% at 500 ppm. In conclusion, Korean Pear peel was expected to use as a functional material.

자기 배양 골모세포를 이용한 임상적용례 : 증례보고 Case Report

김석중,옥인영,장정호,김용식,장재덕,박원종,이주형 대한골절학회 2004 대한골절학회지 Vol.17 No.2

2003년 국내 중증급성호흡기증후군 진료 현황 및 문제점 분석

이진수,김은실,정문현,백제중,정선화,안주희,최영화,이선희,고철우,김성범,김민자,박승철,기현균,송재훈,최상호,김양수,이상오,조용균,박영훈,정숙인,김연숙,이흥범,손창희,장성희,정희진,김우주 대한감염학회 2004 감염과 화학요법 Vol.36 No.3

목적 : 2002년 말 중국에서 SARS가 발생한 이후 국내에서도 2003년 10월까지 총 3명의 추정환자, 17명의 의심환자가 보고되었다. 향후 추가적인 SARS의 유행이 우려되는 상황에서, 그간의 SARS 환자 진료에 있어서의 실질적인 준비사항, 진료 현황 등에 대한 조사를 통해 문제점을 파악하여, 향후 더 나은 대비가 될 수 있도록 개선점을 제시하고자 하였다. 재료 및 방법 : SARS로 의심되는 환자를 진료 경험이 있는 병원의료진을 대상으로 2003년 10월에 설문조사를 실시하였다. 설문에는 SARS 환자 진료 시의 실질적인 조치, 진료 현황, 병실, 응급실 및 외래에서의 격리 시설과 준비사항, 보건당국의 관리와 지원에 관한 사항을 포함하였다. 결과 : 대상이 되는 22개 병원 중 17개(17/22, 77.2%) 병원이 설문에 응하였다. SARS 환자를 위한 격리실은 응급실, 외래, 일반병실 및 중환자실에서 각각 9개(9/17, 52.9%), 5개(5/17, 29.4%), 15개(15/16, 93.7%), 4개(4/16, 25%) 병원에서 음압처리가 되어있지 않은 일인실 혹은 다인실이 사용되었고, 1개(1/16, 6.3%) 병원에서만 일반병실에서 음압격리실이 운영되었다. 입원환자의 진찰 시 개인보호구의 착용은 거의 모든 의료기관에서 이루어졌다. 보건당국에서 SARS지정병원의 시설 등을 사전에 확인한 곳은 1곳(1/12, 8.3%)이였고, 14개 병원(14/15, 93.3%)에서는 보건당국에 의뢰한 검사결과를 통하 받지 못하였다. 결론 : 의료기관에서 SARS 환자용 격리실뿐만 아니라 기존의 격리실 설비 등이 미흡하였으며, 특히 중환자실 및 외래의 준비가 더욱 부족하였다. 보건당국의 의료기관에 대한 종합적인 지원이 부족하였고, 병원과의 원활한 연계가 잘 이루어지지 않았다. SARS 만이 아닌 격리를 필요로 하는 질환의 적절한 진료를 위해 향후 병원 시설의 정비와 정부차원에서의 보다 구체적이고 실질적인 대책마련이 필요하다. Background : There was an worldwide outbreak of the Severe Acute Respiratory Syndrome (SARS) originated from China in late 2002. During that period three cases of suspected SARS and 17 cases of probable SARS were reported in Korea. With the concerns about the reemergence of SARS-coV transmission, it is important to be prepared for any possibility. So, this study is aimed to analysis the past measures in managing SARS and propose the amendatory plans to improve the preparedness. Materials & Methods : Questionnaires were collected among clinicians with any experience in managing the probable or suspected SARS cases in Oct. 2003. 17 out of 22 hospitals responded to the questionnaire. The contents in the questionnaire were practical activities, personal equipments, response plans, isolation facilities in emergency centers, outpatient clinics, general wards and intensive care units, and relationship with the public health department. Results : The dedicated isolation rooms in emergency centers, outpatient clinics, general wards, and intensive care units were prepared in 9 (9/17, 52.9%), 5 (5/17, 29.4%), 15 (15/16, 93.7%), and 4 (4/16, 25.0%) hospitals, respectively. Except for one hospital that newly made negative pressure room for SARS, single or multi-bed rooms without airborne infection control were used in all the other hospitals. The personal precaution principles were kept quite well in general wards. Before the designation of SARS hospital by the public health department prior evalution to see if the hospital was suitable for managing SARS was conducted in only 1 (1/12, 8.3%) hospital. The results of laboratory diagnosis were reported back in 1 (1/15, 6.6%) hospital. Conclusions : The isolation facilities which can control airborne infection were almost deficient not only for SARS but also for other respiratory transmissible diseases. For the infection control of transmissible diseases including SARS, more investment is needed on medical facilities and comprehensive support from the public health department required.