흰쥐중심편도체핵에서 Neurotensin 면역양성세포의 다리옆핵으로의 투사

박인식,최정화,박봉수,백선용,김봉선,김재봉,김진정 대한해부학회 1996 Anatomy & Cell Biology Vol.29 No.2

서울시에서의 酸性降雨에 關한 硏究

朴奉奎,李仁淑,崔炯善 梨花女子大學校 韓國生活科學硏究院 1983 韓國生活科學硏究院 論叢 Vol.32 No.-

본 연구는 1982년 5월부터 9월까지 서울특별시를 2×2㎞로 mesh analysis하여 pH, 산성도, 전기전도도를 측정하여 강우에 의한 대기오염현황을 조사한 것이다. 조사지 97지역중 63% 61지역이 산성강우현상을 나타내고 있었고 특히 오염이 심한 지역에서 가용성 염류의 량이 많은 것으로 나타나, 가용성 염류의 량과 수소이온농도와의 밀접한 상관관계를 밝힐 수 있었다. Over the last several decade rain in the world has become more acidic presumably as a result of anthropogenic inputs of SOx and NOx to the atmosphere and their conversion to H_2SO_4 and HNO_3. Generally, precipitation in equilibrium with the carbon dioxide normally present in the atmosphere has an caidity on the pH scale 5.7. Therefore, polluted areas were determined by concentric difference of free H^+ ions in each site and those, in which pH is lower than 5.7, were considered polluted areas. The highest concentric site of free H^+ ions was considered the most polluted area, which also showed the highest conductivity. There were close relationships between quantity of soluble salts and concentration of H^+ ions. When the concentration of free H^+ ions were same in the polluted areas, the more polluted areas were determined by comparison of concentric difference of total H^+ ions of the sites. The higher the concentration of total H^+ ions, the more polluted areas. The results suggest that 73% (61 sites) of the 97 sites in Seoul were polluted areas.

돌연변이원성 카르보닐화합물에 대한 단백질 가수분해물의 돌연변이원성 억제작용

박영호,염동민,김선봉 한국노화학회 1992 한국노화학회지 Vol.2 No.1

만성중이염의 골도청력변화

박선홍,노용훈,이도용,나한조,김용기,최봉남,도남용 朝鮮大學校 附設 醫學硏究所 1996 The Medical Journal of Chosun University Vol.21 No.1

We have usually experienced bone conduction impairment in chronic otitis media, but it is unclear that raised bone conduction threshold is due to the reflection of cochlear dam- age and / or Carhart effect ( an artificial elevation of bone conduction threshold due to conductive defect ) or both. The purpose of this study is to verify the influence of the artificial elevation of the bone conduction threshold in chronic otitis media and to estimate Carhart effect. A total of 336 cases of tympanoplasty with unilateral chronic otitis media without any other causes of sensorineural hearing loss was studied. The average threshold levels of the bone conduction in diseased ears ranged from 18.5dB at 4kHz to 12.1dB at 250Hz The longer duration of the disease, the larger perforation size, the more severe damage of the middle ear structure and the presence of the cholesteatoma made bone conduction threshold increased. The postoperative thresholds of bone conduction were Improved in 36 cases (40.4%) of the 89 cases that underwent operation with type I tympanoplasty technique without electrie drilling. The degree of the maximal improvement was 14.3dB at 2000Hz and the minimum was 8.8dB at 250Hz. but these result did differ from a statistically significant degree. The result suggest that the bone conduction threshold in chronic otitis media is elevated artificially by conductive defect and improved by successful reconstructive surgery.

光陵의 전나무 生長의 定量的 分析에 관한 硏究

朴奉奎,崔炳善 梨花女子大學校 韓國生活科學硏究院 1980 韓國生活科學硏究院 論叢 Vol.25 No.-

光陵의 전나무 생장의 정량적 분석 결과는 다음과 같다. 즉, 1) Logistic equation은 곡선이 생장 초기와 생산량의 극한치에 가까운 값들에서 오차가 비교적 크게 나타났기 때문에 측정치에 적합한 생장식이라고 볼 수는 없었으나 최대 생산적 시기를 나타내는 변곡점(inflection point)이 거의 일치하였으므로, 최대 생산력 시기를 구하기 위해서는 Logistic equation을 쓰는게 바람직하다고 볼 수 있었다. 2) 측정치와 3개의 생장식의 이론치와의 비교에서 Gompertz equation에 의한 이론치가 가장 근사한 값을 나타내어 본 연구에서 조사된 전나무의 생장식으로 적합하였으나 최대 생산력시기가 측정치보다 일찍 나타났으므로 최대 생산력시기의 조사를 위해서는 적합하지 않았다. 3) Von Bertalanffy equation의 이론치는 측정치보다 생장이 느리게 나타났고, 최대 생산력시기도 Gompertz equation 보다도 일찍 나타나므로 본 연구에서 조사된 전나무의 생장식으로는 적합치 않다고 볼 수 있었으나 W∞의 값 즉, Logistic 이나 Gompertz equation에서는 계산에 의하여 구할 수 없는 생산량의 극한값을 구하기 우해서는 필히 이 식을 유도 해내는 고정을 도입해야 구해 낼 수 있었다. Quentitative analysis was made to estimate the product of Abies holophylla in Kwangnung forest. The width of annual rings was measured to obtain the overall yearly growth. The growth curve was S-shaped, that had an upper asymptote, so to speak, carrying capacity, and that approached this asymptote smoothy, not abruptly. Three types of sigmoid growth curve-Logistic, Gompertz, and Von Bertalanffy growth equation-was analyzed with and without Rivklefs' technique, by which conversion factors were used. As a result, caluculated maximum growing time by the Logistic equation wals 15-17 years which was comparatively fit in comparison with data obtained by survey. Calculated annua products by the Gompertz equation were fittest among three equations. Asymptote was calculated by Von Bertalanffy equation.

잎갈나무와 잣나무식생의 생산력에 관한 연구

朴奉奎,崔炯善 梨花女子大學校 韓國生活科學硏究院 1979 韓國生活科學硏究院 論叢 Vol.23 No.-

1) 각 숲의 토양 조성은 비교적 유사하였으나 주변 식생은 23종이 공동 출현하엿고, 94종이 단독 출현하여 차이를 보였다. 2) 잎갈나무숲은 수령이 대체로 15~40년 정도가 많았으며, 잣나무숲은 수령이 대체로 35~60년 정도가 많았다. 3) 두 종의 생각곡선은 S字形의 logistic 곡선을 이루고, 이는 Robertson(1907)의 생장식에 적용시킬 수 있었다. 4) 두 종의 최대생장기는 11~13년으로 비슷하엿으나 잣나무가 느린 성장을 이루었다. 5) 두 종의 최대치벌시기는 잎갈나무가 17년 정도이고, 이때의 흉고 주위는 57cm정도이며, 잣나무는 19년 정도이고 이때의 흉고 주위는 53cm정도이다. Larix olgensis and Pinus koraiensis forests in kwangnung were investigated from July through August 1978. In order to Analysis Microevironmental factors, the three layers of forest-tress, shrubs and herb layer, and soil were observed and analyzed. Quantitative and dimension analysis was used to estimate product and productivity for two species at certain times during the year. the growth curve is sigmoid, or S-shaped. theS-shaped curve has an asymptote, and we can use Robertson's growth formula. As s result, estimated maximum productivity time of larix olgensis is 11 years, and pinus koraiensis is 12 years. Maximum cutting time of Larix olgensis is 17 years, Pinus koraiensis is 19 years.

흰쥐 시각교차위핵에서 Galanin 면역반응 축삭종말의 분포와 신경연접구조

박환태,백선용,김봉선,김진정,김재봉 대한해부학회 1992 Anatomy & Cell Biology Vol.25 No.4

생활 및 건강 행태에 따른 비만도 분석

장봉기,이의선,박종안 순천향대학교 기초과학연구소 2008 순천향자연과학연구 논문집 Vol.14 No.1

This study was to identify the factors affecting the obesity as body mass index by sex, age, lifestyle and health behavior. The subjects for this study were all adult in Choongnam-do and capital region, Korea. The data were collected in November, 2007. The results of this study are as follows. Body mass index (BMI) by sex showed that significantly higher in the male group (23.04±3.5) than in the female group (21.12±2.7) (p<0.01). BMI by age showed that significantly increased according to older group (p<0.01). BMI by exercise showed that significantly higher in does not the exercise group than in the exercise group for male group (p<0.05). BMI by kind of exercise showed that significantly higher in ball game exercise group than in aerobic exercise group for female group (p<0.05). BMI by meal frequency per day showed that significantly higher in 3 times and more group than the 2 times and below group for female group (p<0.05). BMI by speed of eating showed that significantly higher in fast group than the slow group for male group (p<0.05). Generally, a person who drink show that higher BMI. BMI showed that significantly higher in parents is obesity group than the normal parents group (p<0.05).

흰쥐와 햄스터의 생체리듬과 관계된 신경핵에서 Fos 면역양성물질 발현에 관한 연구

박환태,박인식,백선용,김봉선,김진정,김재봉 대한해부학회 1994 Anatomy & Cell Biology Vol.27 No.1

活性酸素種에 의한 Melanoidin의 脫色 및 分解生成物 : Ⅰ. 過酸化水素에 의한 脫色 및 分解 Ⅰ. Decolorization and Degradation of Melanoidins by Hydrogen Peroxide

金善奉,朴榮浩 釜山水産大學校 1985 釜山水産大學 硏究報告 Vol.25 No.2

D-glucose-glycine系로 부터 調製한 非透析性 Melanoidin에 過酸化水素를 使用하여 脫色 및 分解를 행하고 그 分解條件의 檢討와 分解生成物의 同定 및 部分構造를 推定하였다. Glucose oxidase를 使用하여 Melanoidin에 作用시켰을 때 Melanoidin의 脫色率은 65%로 나타났다. 本酵素에 의한 Melanoidin의 脫色은 酵素-基質間의 反應生成物인 過酸化水素등에 의한 것으로 밝혀졌다. 그래서, 中性 및 알칼리性 條件下에서 Melanoidin에 過酸化水素를 加하고 37℃에서 28時間 反應시켰을 때, 中性條件下에서의 脫色率은 64%, 알칼리性條件下에서는 97%이었다. 이 處理에 의하여 平均分子量 5,300의 未處理 Melanoidin이 平均分子量 3,500까지 低分子化하였다. 한편, 非透析性 Melanoidin의 過酸化水素處理에 의하여 얻어진 에테르可溶性劃分中의 主要分解生成物은 2-methyl-2, 4-pentanediol, N, N-dimethylacetamide, acetic acid, oxalic acid, Methylpropanedioic acid, propanedioic acid, Butanedioic acid, 2-furancarboxylic acid, 2-hydroxypropanoic acid, 2, 5-furandicarboxylic acid, 5-(hydroxymethyl)-2-furancarboxylic acid 등이었다. 水溶性劃分中의 低分子分解生成物은 glycine이 대부분이었고, 量的으로는 Melanoidin當 1.73%이었다. 이들 Melanoidin의 低分子化 및 分解生成物은 Melanoidin의 糖側鎖-C-CO-結合의 解裂 및 NH-CO結合의 切斷에 의한 것으로 推察된다. Nondialyzable melanoidins prepared from glucose-glycine system were incubated with glucose oxidase under optimal conditions and then the melanoidins were decolorized at a degree of 65%. The decolorization of melanoidin by glucose oxidase mainly caused by hydrogen peroxide produced from enzyme-substrate reaction. Therefore, the oxidative decomposition and decolorization of melanoidins were tried by using hydrogen peroxide. Melanoidins were treated with hydrogen peroxide (final conc. 6.72%) under neutral (pH 7.0) and alkaline (pH 10.0) conditions at 37℃ for 28 hr. Melanoidins were decolorized to 64% and 97% under above optimum conditions, respectively. The mean molecular weight of melanoidins decreased from 5,300 to 3,500 before and after hydrogen peroxide treatment. The major components in ether-soluble fraction obtained from melanoidins by oxidative degradation of alkaline hydrogen peroxide were identified as 2-methy1-2, 4-pentanediol, N, N-dimethylacetamide, phenol, acetic acid, oxalic acid, methylpropanedioic acid, propanedioic acid, 2-furancarboxylic acid, butanedioic acid, 2-hydroxypropanoic acid, 2, 5-furandicarboxylic acid and 5-(hydroxymethyl)-2-furancarboxylic acid. On the other hand, the major degradation product in aqueous fraction was identified as glycine, and 1.73% glycine was produced per melanoidins.