• 한국약용작물학회지
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• 제5권4호
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• pp.302-306
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• 1997

예로구터 그 수액이 건강보조식품으로 사용되어온 고로쇠나무의 줄기를 대상으로 항산화 활성을 가지는 성분을 찾기위하여 실험에 착수하였으며, 그 MeOH추출물의 ETOAc분획을 대상으로 Column chromatography를 실시하여 scopoletin, isoscopoletin, (-) -epicatechin등 3종의 화합물을 분리하고 항산화 활성을 측정하였다. 이중 scopoletin과 isoscopoletin은 BHA나 ${\alpha}-tocopherol$보다 활성이 약하였으나 $(RC_{50}\;:\;120,\;110\;{mu}g)$, (-)-epicatechin의 항산화활성 $(RC_{50}\;:\;7.5\;{mu}g)$은 BHA나 ${\alpha}-tocopherol$보다 뚜렷하게 높았다.

• Perspectives in Nursing Science
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• 제15권1호
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• pp.18-28
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• 2018

Purpose: This study was designed to explore the levels of physical activity and fatigue among nurses and to identify the relationship between these variables. Methods: Participants were 89 nurses working at an intensive care unit and an operating room in a children's hospital. Data were collected using self-reported questionnaires including the International Physical Activity Questionnaire and Brief Fatigue Inventory. Results: Most of the nurses' physical activity was work related, and there was a significant difference according to the working unit. Nurses with higher work stress and lower job satisfaction showed higher levels of fatigue than their counterparts did. Work-related physical activity and the interference of fatigue with relationships were related positively, whereas transport and leisure time physical activity were negatively related to usual fatigue and the interference of fatigue with life enjoyment. Conclusion: The levels of physical activity and fatigue of nurses were higher than those observed among other populations. The appropriate level of physical activity for these nurses needs to be investigated carefully. Also, in the intervention for nurses' fatigue, their level of work-related and leisure-time physical activity should be considered separately, and their work environment and psychological satisfaction level should be included.

• 생명과학회지
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• 제9권6호
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• pp.692-697
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• 1999

주정폐액과 같은 고 농도의 유기성 폐액의 효율적 처리에는 혐기적, 호기적인 생물학적인 처리와, 생물학적으로 난분해성 물질의 화학적 처리가 요구되었다. 난분해성 COD성분을 제거하기 위하여 Fenton처리 전에 가능한 많은 유기물의 제거가 요구되며, 이때 $FeCl_3$,alum,cationic polymer의 처리가 효과적이었다. 이 처리과정 중은 몰론 Fenton 처리과정 중에 생성되는 슬러지의 제거 효율에 따라 전체 폐수처리효율리 크게 영향을 받게되 슬러지의 효과적인 제거과정이 필요하였다, 이를 위해 기포의 직경이 80-120 um 정도되는 기존의 DAF방식에 비해 새로 도입한 PBF법에 의해 생성되는 직경 20-50um 의 미세포기는 슬러지의 부상을 촉진시켜 화학적 슬러지의 제거 효율이 훨씬 뛰어남을 알 수 있었다. 이에 따라 PBF법에 의한 슬러지의 제거는 기존의 DAF법에 비해 약품 사용량, 용수의 절감, 방류량의 감소 등으로 전체 운전비용을 약 30%정도 줄일 수 있었다.

• 한국의상디자인학회지
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• 제19권3호
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• pp.49-61
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• 2017

The purpose of this study was to analyze the organizational framework and contents of the clothing design section of the middle school textbook of Technology & Home-economics(1) of the revised curriculum in 2009. The scope this study lies in external characteristics such as framework, contents and the like from the Home Economics area of textbooks by seven publishers chosen from those that were authorized by the Ministry of Education, Science and Technology in 2012. The result showed that the seven textbooks have the same top Unit 'Juvenile Life' and mid-Unit 'Clothing and Self-expression' but that smaller units were different and diverse in content. In the small unit 'Clothing and Self-expression' of the clothing design section, contents are structured to be put into practice by understanding and exercising the concept; the contents are offered as design theories, clothes design, clothing, and activities/investigation. Hanbok (Korean traditional clothes) clothing was proposed in all textbooks in an order of the right way for Hanbok clothing, names of Hanbok, kinds of Hanbok and the order of wearing Hanbok. Accordingly, this study found the seven textbooks were constructed corresponding to the revised curriculum 2009 for the clothing design section of Technology & Home-economics(1). This study suggests students can build their own insight for viewing society, the country and the world as well as appreciate their own importance in establishing consciousness if they go forward in solving the various problems they face in home life by grafting practical reasoning.

• 한국과학교육학회지
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• 제10권2호
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• pp.55-66
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• 1990

This study aimed at identifying the characteristics of current Earth Science Curricula in several countries in terms of their format, objectives and contents and discussing about them. The curricula(including textbooks) were collected from 6 countries The United States of America, England, Australia, Japan and The Republic of China. Here are the results of this study ; 1. Earth Science should be teached in high school and assigned at least 8-10 unit. 2. In Earth Science objectives, scientific inquiry methods through observation and experiment and mutual relationship among science, technology and society must be stressed. 3. The contents of Earth Science must did with experimental and activity rather than understanding in order to induce students to how more intersts in Earth Science. 4. There is a growing tendency for Earth Science Education to be attached importance to life environment and career education.

• 한국학교ㆍ지역보건교육학회지
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• 제2권2호
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• pp.79-87
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• 2001

The purpose of this research is to investigate various characteristics of the health unit presented in current physical educational curriculum and study a variety of middle school physical education textbooks in the aspect of health education. The conclusions of this research are as follow Acquiring and executing of health knowledge is important in the school health education. Thus, the contents of textbook suitable to the developmental stage of teenager and applicable to future life should be concretely presented in the physical education textbook. The standard of selecting the range of physical education contents should be regulated, and the contents appropriate to standard should be presented in the physical education textbook. We make student utilize the textbook by showing the sample the example of portfolio and self-checklist in the textbook. In the aspect of formation of textbook, scientific and systematic which is appropriate to improving the power of thinking and inquiry should be used in the textbook. In the aspect of format of textbook, application of CD-ROM or video type should be attempted, making the textbook. Moreover, the health education in the physical education textbook should be connected to not only the school health education but the health education in the unit of home and society for the purpose of successful health education.

• 한국조리학회지
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• 제5권2호
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• pp.421-443
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• 1999

The purpose of this study is to explore the considering things for menu development of food industries. there are many important factors to take into consideration. The results are as follows ; First, a good understandings of consumers' demand Second, considering of the regional characteristics Third, establishing of the exact target Fourth, careful thinking of a unit cost The national income and the quality of life have continued its growth in these days. so, Food industries have to develop the menu from consumer -oriented thinking. that is a key to success in food industries.

• 생약학회지
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• 제50권3호
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• pp.232-238
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• 2019

Phytochemical study of Ganoderma lucidum (Polyporaceae) let to the isolation of five lanostane triterpenoid (1-5), along with two nitrogen derived phenolic compounds, N-phenylethylformamide (6) and N-acetylphenethylamine (7). The structures of the compounds were determined by 1D and 2D NMR, and MS experiments, as well as by comparison of their data with published values. Compounds 6 and 7 were isolated for the first time from the genus Ganoderma and this species. All the compounds were evaluated for cancer chemopreventive potential based on their ability to inhibit nitric oxide (NO) production induced by lipopolysaccharide (LPS) in mouse macrophage RAW 264.7 cells in vitro. Among the isolates, compounds 2 and 3 showed moderate inhibitory activity against NO production.

• 대한한의학방제학회지
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• 제17권2호
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• pp.163-174
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• 2009

Reactive oxygen species(ROS) can induce hepatotoxicity and trigger apoptosis in the liver. In this study, we investigated the sulfated polysaccharide A-1 from Opuntia ficus-indica against alcoholic oxidative stress in human liver Hep G2 cell. An antioxidant substance A-1 obtained from the enzymatic extract of Opuntia ficus-indica fruit was purified by DEAE-cellulose ion exchange and sephadex G-100 gel permeation chromatography. The purification yield and molecular weight were 14.3% and 1.8 KDa, respectively. The A-1 predominately contained arabinose, galactose, rhamnose and also sulfate group. The structure of A-1 was investigated by periodate oxidation, FT-IR spectroscopy, $^1H$-NMR spectroscopy. The A-1 mainly composed of alternating unit of ${\rightarrow}4$)-$\alpha$-L- Rapp-2-$SO_3^-$-$\alpha$-L-Galp-($1{\rightarrow}$ and branched linkage of $\beta$-D-Arbp- ($5{\rightarrow}$. The antioxidative activity was measured using the SOD, CAT activity and GSH assay, respectively. The expression of Nrf2 protein was analyzed by western blotting. The viable cell count analyzed by autofluorescence. Oxidative stress induced by ethanol(1 M) were dramatically reduced by A-1 treatment. A-1 also prevented cell death induced by oxidative stress. It also increased expression Nrf2 protein level. We concluded that sulfated polysaccharide A-1 from Opuntia ficus-indica effectively protect Hep G2 liver cell from alcoholic oxidative stress.

• 농촌지도와개발
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• 제22권4호
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• pp.423-434
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• 2015

This paper predicts the onion's cultivation areas, yields per unit area, and wholesale prices during ship dates by using wholesale price data from the Korea Agro-Fisheries & Food Trade Corporation, the production data from the Statistics Korea, and the weather data from the Korea Meteorological Administration with an ARDL model. By analyzing the data of wholesale price, rural household income and rural total earnings, onion cultivation areas in 2015 are estimated to be 21,035, 17,774 and 20,557(ha). In addition, onion yields per unit area of South Jeolla Province, North Gyeongsang Province, South Gyeongsang Province, Jeju Island, and the whole country in 2015 are estimated to be 5,980, 6,493, 6,543, 6,614, 6,139 (kg/10a) respectively. By using onion production's predictive value found from onion's cultivation areas and yields per unit area in 2015, the onion's wholesale prices in June are estimated to be 780 won, 1,100 won, and 820 won for each model. Predicted monthly price after the onion's ship dates is analyzed to exceed 1,000 won after August.