조혈모세포이식술이 골수기질세포의 기원 및 조골세포로의 증식 및 분화에 미치는 효과

강무일,조성원,오은숙,백기현,이원영,오기원,김혜수,한제호,윤건호,차봉연,이광우,손호영,강성구,김춘추 대한내분비학회 2000 Endocrinology and metabolism Vol.15 No.4·5

Ho-166 부착풍선도자를 이용한 방사선 조사의 돼지 관상동맥 스텐트 재협착 예방 효과

김원 ( Kim Won ),정명호 ( Jeong Myeong Ho ),박옥영 ( Park Og Yeong ),정우곤 ( Jeong U Gon ),박우석 ( Park U Seog ),김주한 ( Kim Ju Han ),안영근 ( An Yeong Geun ),조정관 ( Jo Jeong Gwan ),박종춘 ( Park Jong Chun ),강정채 ( Kang Je 한국지질동맥경화학회 ( 구 한국지질학회 ) 2002 韓國脂質學會誌 Vol.12 No.1

배경 : 국내에서 개발된 방사선 동위원소 Holmium-166 (166Ho)은 주로 베타선을 방출하며, 166Ho을 부착한 풍선도자를 이용하여 돼지 관상동맥 재협착 모형에서 풍선확장술 후 신생내막 증식을 전신적 부작용 없이 안전하고 효과적으로 억제하였음을 보고한 바 있다. 본 연구에서는 돼지 관상동맥 스텐트 재협착 모형에서 스텐트 시술 후 신생내막 증식에 의한 재협착 병변을 166Ho 부착 풍선도자를 이용하여 치료하여 그 효과를 관찰하고자 하였다. 방법

골수이식 후 골밀도 및 골대사의 변화 : 2년 추적관찰 2-Year Prospective Study

이원영,강무일,오은숙,오기원,한제호,손현식,윤건호,차봉연,이광우,손호영,강성구,신완식,민우성,김춘추 대한내분비학회 2000 Endocrinology and metabolism Vol.15 No.4·5

AFB 공정을 이용한 양돈폐수의 혐기성전처리에 관한 연구

강호,김종원,송석헌,이현규,장제헌 忠南大學校 環境問題硏究所 2003 環境硏究 Vol.21 No.-

This research was performed to optimize the anaerobic pretreatment of slurry type swine wastewater for the subsequent nitrogen and phophorus removal. Step-wise increases in Organic Loading Rate(OLR) and decreases in Hydraulic Retention Time(HRT) were utilized in Upflow Anaerobic Fixed Bed(AFB) reactor at mesophilic temperature(35℃). The maximum methane prodution rates of 1.16 v/v-d was observed at an HRT of 12 hours. TCOD removal efficiency of 75% at an HRT of 2 days and 41% at an HRT of 12 hours were obtained respectively. It is likely that the influent COD concentration of 3,000 mg/L for the subsequent biological nutrient removal system could be supplied from the anaerobic pretreatments operated at an HRT of 12 hours(OLR 12g CODL-day). During AFB operation alkalinity showed 800- 1,500mg/L as CaCO_(3) at all HRTs. It could play an important role for compensating pH drop caused by nitrification. The COD/TKN ratio of 6-14 at all HRTs, COD/TP ratio of 30-50 at an HRT of 1 day and proper buffering capacity and pH of the effluent from the anaerobic fixed bed could be adequate substrate condition in the following nitrogen and phosphorus removal. In conclusion, when AFB was operated at an HRT less than 1 day, the system could be optimized to reach an efficient anaerobic pretreatment for swine wastewater and the subsequent biological nutrient removal.

遮光이 두 大豆品種의 光合成 및 收量에 미치는 影響

柳點鎬,崔善英,金濟桓,李康壽 全北大學校 1993 論文集 Vol.35 No.-

In order to find out the influence of shading degree on the growth, pod setting, protein contents, RuBPCase activity, photosynthesis and yield in soybean plants, two soybean varieties, Hill and Etaka were cultivated under the 0%(full sun light), 20%, 65% and 90% shading conditions. Protein contents, RuBPCase activity and photosynthesis of leaves in Hill were decreased linearly with the higher shading, but those in Etaka were increased up to 20% shading, and then decreased more rapidly than Hill when the shading was above 65%. Pod sets were decreased with the higher shading degree, and those of the degree were severe in upper nodes. The stem heights were increased in accordance with the shading up to 65%, but stem diameter and No. of branches were decreased linearly with the higher shading degree. The yield of Hill was decreased linearly with the higher shading degree, but that of Etaka were increased up to 20% shading, and decreased inure severely than Hill when the shading was above 65%. From the above results : Etaka is more suitable than Hill to weak shading which occurred in the case of intercropping, companion cropping and alternating cropping, and the shading degree must not go over above 20%.

영광원자력발전소 주변의 식생과 식물현존량 추정

이호준,양효식,전영문,정흥락,강재구,방제용 建國大學校基礎科學硏究所 1996 理學論集 Vol.21 No.-

영광원자력발전소 주변의 식생에 대한 식물사회학적 조사를 실시하였으며, 순 1차 생산량과 식물현존량을 추정하였다. 또한 상관에 의해 현존식생도 및 녹지자연도를 작성하였다(1:50,000). Z-M 방식에 의한 삼림식생은 소나무군락과 곰솔군락으로 구분되었다. 전체적으로 교목층에 소나무와 곰솔, 아교목층에 졸참나무와 곰솔, 관목층에 털진달래와 신갈나무, 초본층에 털대사초와 그늘사초 등의 피복지수가 우세하게 나타났다. 토양의 pH는 4.65∼4.67, 유기물 함량은 7.28∼7.53%의 범위였다. 현존식생도에 의한 분포비율은 경작지(67%), 소나무(21.9%) 및 곰솔군락(9.1%)의 순으로 나타났으며, 녹지자연도는 등급 2가 67%(경작지), 7등급(이차림(A))과 6등급(조림지)이 각각 29.2%와 1.8%로 나타났다. Montreal model에의한 소나무림과 곰솔림의 식물현존량은 657,817.2와 177,367.0ton으로 각각 산정되었다. The forest vegetation and estimation of phytomass and net primary production in the vicinity of Yonggwang Atomic Power Plant were analyzed on the basis of the phytosociological data. Depending on physiognomy, the actual vegetation map and the degree of green naturality(DGN) were also drawn in the scale of 1:50,000. According to Z-M method, the forest vegetation was classified into two communities; Pinus densiflora and Pinus thunbergii communities. It was generally shown that Pinus densiflora and Pirus thunbergii in tree-1 layer, Quercus serrata and Pinus thunbergii in tree-2 layer, Rhododendron mucronulatum var. ciliatum and Quercus serrata in shrub layer, and Carex ciliato-marginata and Carex lanceolata in herb layer had high coverage index. The pHs and contents of organic matter of the forest soils collected in each sites were in the 4.64 to 4.67 and 7.28% to 7.53% in average, respectively. The distribution area of each vegetationindex. The pHs and contents of organic matter of the forest soils collected in each sites were in the 4.64 to 4.67 and 7.28% to 7.53% in average, respectively. The distribution area of each vegetation type in the actual vegetation map was 67% cultivated land, 21.9% in Pinus densiflora community and 9.1% in pinus thunbergii community. The distribution of the degree of green naturality(DGN) was 67% in the second-grade (cultivated land), 29.2% in 7th grade (second forest(A)) and 1.8% in 6th grade (plantation). It was estimated that phytomass of Pinus densiflora and Pinus thunbergii in the study sites, which was calculated by Montreal model, was 657,817.2 and 177,367.0 ton, respectively.

외상성 흉·요추접합부 파열골절의 Kaneda 기구를 이용한 내고정술에 대한 임상적 검토 : Results of Anterior Decompression and Stabilization with Kaneda Device

장주호,김수한,정신,김재휴,강삼석,이제혁 대한신경외과학회 1993 Journal of Korean neurosurgical society Vol.22 No.4

The authors report clinical results of twenty-three traumatic thoracolumbar burst fractures treated by internal fixation with Kaneda device after anterior decompression during recent three years. Thoracolumbar injuries made up 28.9% of total spinal injuries and the burst fractures treated by anterior decompression and stabilization with Kaneda device constituted 19.0% of all spinal injuries. The burst fractures occurred most frequently at the age of twenties and thirties. The main causes of injury were fall and vehicle accident. Superior end-plate fracture type was most common according to the types of burst fracture. The first and the second lumbar vertebrae were frequently involved. No patient showed neurological deterioration after surgery. Conus medullaris lesions in burst fractures of the thoracolumbar junction have a high potentiality for functional recovery because the lesions are not due to discontinuity or severe crush injury but due to simple compression by bony fragments. The Kaneda device offered enough stability to enable early ambulation with good alignment and solid fusion.

한국 정신장애의 역학 조사 연구[I] : 각 정신장애의 유병률

조맹제,함봉진,김장규,박강규,정은기,서동우,김선욱,조성진,이준영,홍진표,최용성,박종익,이동우,이기철,배재남,신정호,정인원,박종한,배안,이충경 大韓神經精神醫學會 2004 신경정신의학 Vol.43 No.4

Objectives : This study aims to estimate the prevalence of the DSM-IV psychiatric disorders in Korean population using the Korean version of Composite International Diagnostic Interview (K-CIDI). Methods : Subjects were selected by taking multi-stage, cluster samples of 7,867 adult household residents, 18 to 64 years of age, in ten catchment areas. Total 78 trained interviewers administered the K-CIDI to the selected respondents, from June 1 to November30,2001. Results : Total 6,275 respondents completed the interview. Some 33.5% of respondents reported at least one lifetime disorder, 20.6% reported at least one-year disorder, and 16.7% reported at least one-month disorder. The most common lifetime disorders were alcohol abuse/dependence (17.24%), nicotine dependence/withdrawal (11.19%), specific phobia (5.16%), and major de-pressive disorder (4.25%). The lifetime prevalence of substance abuse/dependence (0.25%) and schizophrenia (0.16%) was very low. Nicotine and alcohol use disorder showed very high male/female ratio. Mood disorder and anxiety disorder were more prevalent among female than male. Conclusion : The prevalence of psychiatric disorders was high. In comparison with other studies, remarkable differences in distributions of psychiatric disorders across the areas and times were observed.

장기적 트립토판 결여식이 생쥐의 유해감각예민도에 미치는 영향

서영대,박제민,김명정,전명호,양구범,장세헌,강철중,김정태,김용식 대한생물치료정신의학회 2000 생물치료정신의학 Vol.6 No.1

The depressive patients can be divided into two subgroups by presence and absence of pain symptoms. Those without pain symptoms have blunted pain sensitivity whereas those with pain have normal range of pain sensitivity, and are clinically characterized by anxiety and irritability. The aim of the study is to test if these clinical profiles of the depressives with pain symptoms are related with reduced level of brain serotonin(5-HT). Forty four mice were randomly divided into two groups : one group to be bred with tryptophan free diet and the other with normal control diet, each for 4 weeks. Before the beginning of the breeding period, measured were locomotor activity by open field test, anxiety by elevated plus maze and nociceptive sensitivity by tail flick test, before and after forced swimming(FS). During each FS, duration of immobilization was also measured. The sable sets of measurements were repeated at the end of the breeding period. The brain 5-HT and 5-hydroxyindoleacetic acid(5-HIAA) were measured by high performance liquid chromatography. The results were as follows 1.Four weeks of tryptophan free diet reduced significantly body weight, brain weight, and levels of 5-HT and 5-HIAA in the whole brain. 2.Tryptophan depletion did not influence basal nociceptive sensitivity as measured by tail flick latency before FS. The normal blunting of the pain sensitivity induced by forced swimming was preserved in the tryptophan depleted group. 3.Tryptophan depletion did not influence general locomotor activity in open field. 4.Tryptophan depletion increased significantly time spent on the open arms at the elevated plus maze test done before FS. This anxiolytic-like effect was reduced by FS. 5.Tryptophan depletion did not influence duration of immobilization during FS. From these results, it is suggested that the genesis of the depression with pain symptoms is not medicated by quantitative reduction of brain serotonin

高X線 吸收유리에 있어서 BaO, SrO의 含量變化가 液相溫度에 미치는 影響

李卿喜,梁在翊,金德文,姜元浩 明知大學校 産業技術硏究所 1987 産業技術硏究所論文集 Vol.6 No.2

The liquidus temperature was observed according to the change of content BaO 6 W/O ~ 12W/O and SrO 1 W/O~4W/O in R₂O-PbO-Al₂O₃- (BaO+SrO+SiO₂) glass system. The liquidus temperature varied between 810°C ~ 950°C in these glasses. The effect of BaO & SrO content to the liquidus temperature of the glasses are as follows. 1. The variation of the liquidus temperature were remarkable by the content of SrO in the range of BaO contents from 6 W/O to 8 W/O. 2. The minimum liquidus temperature is located at the composition of BaO 8 W/O SrO 4 W/O SiO₂ 68 W/O.