Oil Contents and Fatty Acid Composition of Korean Perilla (Perilla ocimoides L.) Collections

Hong,Seong-Taek,Son,Suk-Yeong,Jong,Seung-keun,Rho,Chang-Woo,Yun,Jong-Sun 한국자원식물학회 2003 Plant Resources Vol.6 No.3

This study was carried out to obtain informations on the variations of oil content and fatty acid composition among 90 Korean perilla collections. Average oil content of 90 perilla collections was 44.2% with a range from 29.7% to 61.9%. Perilla collections with late-maturing, super-large seed and gray seed coat showed higher oil content than other types in general. Average saturated fatty acid content in perilla oil was 9.0% with a range from 8.2% to 10.7%, while average unsaturated fatty acid content varied from 89.3% to 91.8% with a mean of 91.0%. Contents of saturated and unsaturated fatty acids were not related to maturity. There were no differences in the contents of saturated and unsaturated fatty acids according to maturity. Linoleic acid and linolenic acid contents were the highest in the super large-sized group(15.5%) and in the large-sized seed group(61.4%), respectively, while contents of fatty acids among the perilla collections were variable with different seed coat colors. Most of the traits studied were not significantly correlated with oil content, but linoleic acid($\omega$ 수식 이미지-6) content was negatively correlated (r=-0.217*) with linolenic acid(ω-3) content.

연령증가에 따른 혈압요소들의 좌심실비대 및 관동맥질환과의 관련성

박재석,박창규,박미영,박재형,김용현,나진오,신성희,서순용,홍순준,박성미,임홍의,김응주,서홍석,오동주,노영무 대한순환기학회 2004 Korean Circulation Journal Vol.34 No.2

김치에서 분리한 Lactobacillus sp. JC-7과 Lactobacillus acidophilus 88간의 Electrofusion 최적조건 설정

조영배,최현정,백형석,전홍기 부산대학교 유전공학연구소 1997 분자생물학 연구보 Vol.13 No.-

김치 발효 숙성기간을 연장하고 신선도를 오랫동안 유지 할 수 있는 김치발효 starter의 개발을 목적으로 최적숙성기에 있는 김치로부터 bacteriocin생성능이 없는 유산균을 분리하여 동정하였으며, bacteriocin생성능이 우수한 L.acidophilus 88을 융합시키기 위해 electrofusion에 대한 최적 조건을 검토하였다. 분리균주는 Lactobacillus속으로 동정되어 Lactobacillus sp. JC-7이라 명명하였다. Electrofusion에 의해 생성된 융합주를 식별하기 위해 streptomycin(2.5㎎/ml)에 내성을 나타내는 Lactobacillus sp. JC-7변이주와 kanamycin(600㎍/ml)에 내성을 나타내는 L.acidophilus 88변이주를 분리하였다. Electrofusion을 100V/㎝, 120msec(72ohms,1670 capacitance) 에서 수행했을 때 융합효율이 가장 양호하였으며 전기장의 세기와 시간이 중가할수록 융합 효율이 현저히 감소하였다. 2가 양이온은 농도가 중가할수록 대체적으로 융합효율을 감소시키는 경향을 나타내었으나 1mM MGCl_2에서는 대조군에 비해 융합효율이 약간 증가하였다. PEG매개에 의한 융합법의 융합효율을 비교한 결과, 융합효율은 chemical fusion<electrofusion<electrofusion+20% PEG순을 나타내었다. Evaluation of Optimum Conditions for the Electrofusion between Lactobacillus sp. JC-7 Isolated from Kimchi and Lactobacillus acidophilus 88. Young-Bae Jo, Hyun-Jung Choi, Hyung-Suk Baik and Hong-Ki Jun*. Department of Microbiology, Pusan National University, Pusan 609-735,Korea-A lactic acid bacterium was isolated from kimchi. The isolated strain was identified as the genus Lactobacillus thrugh its morphological characteristics and named as Lactobacillus sp. JC-7. The optimum conditions for the electrofusion between streptomycin(2.5㎎/ml)resistant mutant of Lactobacillus acidophilus 88 and kanamycin(600㎍/ml) resistant mutant Lactobacillus sp. JC-7 were evaluated. The highest number of fusants were obtained at a capacitance value of 120msec(1670㎌), a field strength of 100V/㎝,and a pulse controller setting of 72Ω. The potimum pH of elecroporation buffer was 7.5 and the concentration of divalent cation was 1mM MG^2+. Electrofusants were efficiently obtained by addition 20% polyethylene glycol to electroporation buffer. The yield of fusion was better than that of using polyethylene glycol mediated chemical induction.

금속 도재 수복물을 이용한 청년기 법랑질 이형성증 환자의 수복증례

김홍준,이재훈,한동후,문홍석 大韓齒科補綴學會 2012 대한치과보철학회지 Vol.50 No.3

전반적인 치아변색과 치아마모가 심한 환자들이 심미를 위해 전치부 치료를 원하는 경우가 있다. 이런 경우 법랑질 이형성증에 대해 의심해 보아야 하며 임상 검사 및 방사선 검사를 통해 확인을 해야 한다. 법랑질 이형성증으로 판단된 경우 단지 심미적 목적 하에 전치부 치료만 하는 것은 바람직하지 못하다. 본 증례는 법랑질 이형성증으로 진단된 청년기 환자에서 대부분의 치아를 금속 도재 수복물로 치료하였다. 전반적인 변색 및 마모, 치관 파절이 있었으며, 좌측 전치부와 구치부에 교차교합이 있었다. 심미적, 기능적인 개선을 목적으로 하여 치아를 수복하였다. 전치부의 교차교합은 해소하였고, 구치부의 교차교합은 해소하지 않은 채로 진행하였다. 수복 이후 환자는 심미적, 기능적으로 만족하였으며, 3개월간의 임상관찰에서 특이할 문제없이 안정적으로 유지되어 보고하고자 한다. Some patients with generalized attrition and teeth discoloration may want their anterior teeth to be treated just for esthetic improvement. Ameologenesis imperfecta, however, should be considered for such patients prior to any treatment with thorough clinical and radiographic examination. If a patient is diagnosed with amelogenesis imperfecta, the treatment on anterior teeth just for esthetic purpose is not advisable. In this case, a young man with amelogenesis imperfecta was treated with metal-ceramic restorations. The patient had generalized attrition, teeth discoloration, crown fracture, and cross-bite on the left teeth. The ultimate objective of this treatment was to enhance esthetics and masticatory function. The cross-bite on the left anterior teeth was treated with restorations, whereas the reverse horizontal overlap was maintained on the posterior. The patient was satisfied with the result esthetically and functionally, and the third month recall examination revealed no pathologic changes associated with the treatment.

정상 성인에서 Amitriptyline이 수면구조와 정신생리적 기능에 미치는 영향

홍성곤,신석철,왕성근 충남대학교 의과대학 지역사회의학연구소 1995 충남의대잡지 Vol.22 No.1

To investigate the effects of Amitriptyline on sleep structure and psychophysiologic function in normal adults, author applied polysomnography for sleep structure, reaction time for attention and visual analogue test for daytime fatigue, mood and sleepiness to the volunteers. The subjects were 8 healthy young adults, aged from 20 to 24 years old. The results were summarized as follows. 1. In normal adults, there were great individual variations in the ditribution of relative value(%) of sleep structure. 2. Compared with the baseline, total sleep time and sleep efficiency increased significantly in the 2lmg amitriptyline night, and WASO decreased significantly in the second recovery night. 3. Compared with the baseline, the absolute value(minutes) of stage 1 sleep decreased significantly in the amitriptyline, first and second recovery nights, and the relative value(%) of stage 1 sleep decreased significantly in the first recovery night. The absolute and relative value of stage 2 sleep increased significantly in the amitriptyline night. The relative value of slow wave sleep decreased significantly in the first recovery night. 4. Compared with the baseline, the absolute and relative value of REM sleep decreased significantly in the amitriptyline night, the relative value of REM sleep increased significantly in the first and second recovery nights, and REM latency shortened significantly in the first and second recovery nights. 5. Feeling of fatigue, depressed mood and sleepiness increased in the afternoon the day after amitriptyline administration. 6. 1) In the baseline, daytime sleepiness was positive correlation with feeling of fatigue and mood. 2) The day after amitriptyline administration, relative value of REM sleep was negative correlation with feeling of fatigue and sleepiness, daytime fatigue was positive corelation with mood and sleepiness, and daytime mood was positive correlation with sleepiness. 3) In the first recovery day, daytime fatigue was positive correlation with mood and sleepiness, and negative correlation with reaction time, daytime mood was positive correlation with sleepiness, and reaction time was negative correlation with sleepiness. 4) In the second recovery day, total sleep time was positive correlation with the relative value of REM sleep time, the relative value of stage 2 sleep was negative correlation with the relative value of slow wave sleep, the relative value of slow wave sleep was positive correlation with daytime fatigue and mood, daytime fatigue was positive correlation with mood and sleepiness, and negative correlation with reaction time, daytime mood was positive correlation with sleepiness, and reaction time was negative correlation with sleepiness.

CTBN고무 분산 에폭시 복합재의 기계적물성 및 파단면에 관한 연구

洪錫杓,崔相久 全北大學校 1989 論文集 Vol.31 No.-

We examined the mechanical properties (flexural and impact) and fracture surface of CTBN(carboxyl terminated butadiene acrylonitrile) rubber dispersed epoxy composites which are cured with MTHPA(methyl tetrahydro phthalic anhydride) or DICY(dicyandiamide). Rubber dispersed epoxy composites are prepared to blend epoxy mixture with CTBN rubber or CTBN rubber modified epoxy. It contains 0-25% CTBN rubber of liquid compoment. The results obtained in this experiment are as follows ; 1. The flexural stength is better in using the CTBN rubber than CTBN rubber modified epoxy. 2. In excess of 25% CTBN rubber, the cured epoxy composites are closed to rubber rather than epoxy in properties. It is very flexible. 3. In respect of the flexural stength and flexural modulus, CTBN x13 rubber is superior to CTBN x8 rubber. In excess of 5% CTBN rubber, The mechanical properties of both decrease sharply. 4. In respect of the impact stength, flexural stength and rubber dispersion, MTHPA is superior to DICY.

Bernstein 多項式의 擴張에 관한 硏究

洪錫强 東國大學校 1975 論文集 Vol.14 No.-

우리가 평균치 μ와 σ^2을 가지며, 또 단위 구간 위에서 매개변수 p를 가지는 이산분포 P_r(k)를 생각할 때, Weierstrass 정리에 의하여 몇몇 통계적 법칙을 하는 다항식을 일양적으로 접근시킬 수 있다. 이 논문에서는 고전적인 형태의 번스타인 다항식을 확장시켜, 모든 이산 확률 분포에 적용했으며, 그 결과로 두 가지의 정리를 증명하였다. 즉, B_n(p)=◁그림 삽입▷(원문을 참조하세요) P_r(k)가 임의의 이산 확률 변수를 갖는 번스타인 다항식의 고전적인 형으로 주어진다는 가정 하에서, (Ⅰ)만일 확률 변수 f(k/n)가 이산 확률 분포 P_r(k), r=0, 1, 2, ……r.의 연속 함수 p^r에 수렴한다면, 가중치 P_r(k)를 갖는 B_n(p)는 P_r(k)의 표본 적률에 수렴함.(Ⅱ) 확률 분포 P_r(k)의 B_n(p)에 있어서 확률 변수 f(k/n)가 0, 1/n, 2/n…의 값을 취할 때, P_r(k)의 표본 평균치와 표본 분산을 가지는 정규 목표를 함을 증명할 수가 있다. 예로써, Feller[2]가 제시한 다항식을 부의 이항 분포를 이용하여 위의 정리가 성립함을 보였다.

數學敎育學科 敎育課程 改善硏究

洪錫浩 建國大學校 敎育硏究所 1976 論文集 Vol.1 No.-

The purpose of the present paper is compare with mathematical curriculms of several mathematical course of normal colleges and other two mathematical curriculms in order to organizes new curriculm.

약물치료에 가역적 회복을 보인 갈색세포종에 동반된 확장성 심근증 1례

홍숙경,최현,이승철,천경일,김영철,한재룡,김미숙,정경태,박순창 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.2

생약추출물이 초기우식법랑질의 재광화에 미치는 효과

홍석진,손재범,박근형 대한구강보건학회 2003 大韓口腔保健學會誌 Vol.27 No.2

Since plant extracts have shown antibacterial activities, we hypothesized that herbal plant extracts would further increase cariostatic efficacies of the fluoride dentifrices.OBJECTIVE: The purposes of this study were to determine the minimum inhibitory concentration(MIC) of 9 different Korean herbal plants extracts on the S.sobrinus KCTC3308 and the efficacy of NaF-Silica dentifrices with or without the extracts. METHODS; The MIC of the methanol-extracts on the growth of S.sobrinus was determined. Subsurface caries lesions were prepared as previously described (Hong et al.J Dent Res. 77:843, 1998). After Vickers hardness number(VHN) were determined, the specimens were assigned to 9 test groups of 12 each by randornized blocks with VHN stratification. The specimens were tested for remineralization In vitro subsurface enamel lesion under cyclic microbial dynamic condition simulating in vivo carious fomation. The statistical significance of delta VHNs was determined by Students t-test and one-way ANOVA. RESULTS: The MIC of the Angelica gigas extract was 3 ㎎/㎖, as same as Akebia quinata and Camellia sinensis was 4 ㎎/㎖. However, all 9 extracts tested in the study demonstrated the synergistic cariostatic potential with known fluoride dentifrices. CONCLUSION: The NaF-herbal extract in silica base dentifrice significantly increased the cariostatic effect of NaF-Silica base dentifrice.