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鄭喜先 최신의학사 1975 最新醫學 Vol.18 No.8
The purpose of this study was to examine whether there are any differences in the primary school chilaren's understanding of their internal body organs among the different grades and sexes. The sample consisted of 349 children, 114 of them were 4th grade children, 118 5th grade, and 117 6th grade. Each child was asked to draw organs, which they have known, on a white paper which has the outline of body of a man on Apr. 28. 1975. The data were analyzed by means of the F-ratio to reveal the differences among three grades, and t-test for the differences between boys and girls. The results of the study are as follows; 1. Boys understand the internal body organs more than girls except 5th grade. There was significant difference between boys and girls except 4th grade. 2. In the group of the children presented well, boys understand the internal body organs more than girls in all of the three grades. There were significant difference between boys and girls except 5th grade. 3. Children of upper grades understand the internal body organs more than the children of lower grades with significant difference. 4. Among boys of three grades, boys of upper grades understand the internal body organs more than boys of lower grades with significant difference. 5. Among girls of three grades, girls of upper grades understand the internal body organs more than girls of lower grades with significant difference.
인삼.산양삼.자연산 산삼의 ginsenoside 함량 분석 및 홍삼화 후의 변화 관찰
정희선,임청산,차배천,최석호,권기록,Jeong, H.S.,Lim, C.S.,Cha, B.C.,Choi, S.H.,Kwon, K.R. 대한약침학회 2010 Journal of pharmacopuncture Vol.13 No.1
Objectives: The aim of this experiment is to provide an objective differentiation of cultivated ginseng, cultivated wild ginseng, and wild ginseng through component analysis, and to know the change of ginsenoside components in the process for making red ginseng. Methods: Comparative analysis of ginsenoside $Rb_1,\;Rb_2$, Rc, Rd, Re, Rf, $Rg_1,\;Rg_3,\;Rh_1$ and $Rh_2$ from the cultivated ginseng 4 and 6 years, cultivated wild ginseng, and wild ginseng were conducted using High Performance Liquid Chromatography(hereafter HPLC). And the same analyses were conducted in the process of red ginseng. Results: 1. For content comparison of ginsenoside $Rb_1$, Rc, Rd, Rf, $Rg_1$ and $Rh_1$, wild ginseng showed high content, followed cultivated ginseng 4 and 6 years, cultivated wild ginseng showed low content than any other samples. 2. For content comparison of ginsenoside $Rb_2$ and Re, cultivated ginseng 4 years showed high content, followed wild ginseng and cultivated ginseng 6 years, cultivated wild ginseng showed low content than any other samples. 3. For content comparison of ginsenoside $Rg_3$, wild ginseng and cultivated wild ginseng were only showed low content. 4. For content comparison of ginsenoside $Rh_2$, cultivated wild ginseng was only showed low content. 5. In the process of red ginseng, ginsenoside $Rb_1,\;Rb_2$, Rc, Rd, $Rg_3$ and $Rh_1$ were increased, and ginsenoside Re and $Rg_1$ were decreased in cultivated wild ginseng. 6. In the process of red ginseng, ginsenoside $Rg_3$ and $Rh_1$ were increased, and ginsenoside $Rb_2$, Rc, and Re were decreased in cultivated ginseng 4 years. 7. In the process of red ginseng, ginsenoside $Rb_1,\;Rb_2$, Rf and $Rh_1$ were increased, and ginsenoside Rc and Rd were decreased in cultivated ginseng 6 years. Conclusions: Distribution of ginsenoside contents to the cultivated ginseng, cultivated wild ginseng, and wild ginseng was similar and was not showed special characteristics between samples. And the change of ginsenoside to the process of red ginseng, cultivated ginseng and cultivated wild ginseng were showed different aspect.
정희선 덕성여자대학교 사회과학연구소 2001 사회과학연구 Vol.7 No.-
In this paper, the general characteristics of women-owned businesses and women business owners are analysed and also the differential characteristics of management styles of women and men business owners are examined. Several research studied the similarities and differences between women and men entrepreneurs. The results show they think differently and manage differently. Women business owners are different in the ways which they define success, finance their businesses, seek purchasing information and financial advice, meet the challenges of business ownership, and use information technology and network in the workplace. In this era of changing managerial environment, women business owners offer a new management style as an alternative to traditional men's styles. Women have fashioned a business model that is flexible, streamlined, and service based. This model adapts to the changing business and cultural trends of the new century far better than many traditional businesses. As women-owned firms continue to become more prominent in our economy, it is increasingly valuable for all businesses to understand and benefit from these differences.
빈곤지위로 본 청소년의 진로성숙도 예측요인 및 단기종단적 변화
정희선,박성희,방혜나,윤혜미 한국보건사회연구원 2018 한국복지패널 학술대회 논문집 Vol.11 No.-
본 연구는 가구 빈곤지위(빈곤/비빈곤)에 따른 청소년의 진로성숙도 영향요인에 관심을 두고 요인의 차원을 개인요인, 가족요인, 사회요인으로 구분하여 영향력을 파악하고자 한다. 또한 중학생 시기의 진로성숙도가 고등학생 시기에는 어떻게 변화하는지 빈곤지위변화와 함께 동태분석하여 빈곤가구 청소년의 진로 장벽을 최소화하기 위한 정책적 함의를 도출하고자 한다. 연구자료는 한국복지패널의 진로성숙도 문항이 신설된 4차년도와 7차년도 자료를 이용하였으며 512명의 응답이 분석되었다. 분석결과 청소년의 진로성숙도는 빈곤가구 청소년의 진로성숙도는 하락하고 있는 것으로 나타났다. 진로성숙도의 예측요인으로는 중학생은 부모교육참여가, 고등학생은 심리사회적 학교환경과 참여활동 및 서비스 이용경험이 유의미한 영향력을 미쳤다. 또한 친구애착과 자아존중감은 중학생과 고등학생 모두 중요한 예측요인으로 분석되었다. 마지막으로 진로성숙도의 변화를 단기종단적으로 살펴본 결과, 청소년의 진로성숙도 향상은 비빈곤가구에서 관찰되었으나 새로 빈곤에 진입하거나 빈곤을 탈출하는 등의 빈곤지위 변화는 단기적으로 진로성숙도에 유의한 영향을 보이지 않았다. 본 연구는 단기종단적 청소년의 진로성숙도의 변화에 미치는 영향을 살펴보았으며, 빈곤지위로 구분하여 살펴봄에 따라 빈곤가구 청소년의 진로성숙도 향상을 위해 차별적 접근이 필요하다는 경험적 자료를 제공하는데 의의를 지니고 있다.
정희선 국토지리학회 2009 국토지리학회지 Vol.43 No.4
This paper, taking the example of Gwanghwamun, explores various conservation theories, the concepts and connotations of authenticity and historicity in conservation and reconstruction of heritage from the perspective of its production and consumption. Gwanghwamun has remained as a symbol of Korea’s history throughout the moments of glory and downfall as the nation’s leadership was continuously superseded by the succeeding new groups. The dismantling of the gate built in the 1960s and subsequent reconstruction activities in the 2000s can be construed as heritageisation, implying production of heritage aimed at redefining the relationship between the old and new generations. Discrete meanings given to the gate among different social constituencies and the heritageisation process spearheaded by the government illustrate how a value of heritage is impermanent and how it evolves over time. The renovation activities in the 2000s intend to eliminate the vestige of the past Japanese colonial rule and the military dictatorship during the nation’s industrialization era of the 1950s and 1960s with the aim of establishing new historical thinking and social identity. This demonstrates how interpretation and representation of the past is crucial in shaping national identities. The renovation project is based on justifications such as preservation of an original form of traditional spaces, authenticity of heritage, and inscription of Seoul as the UNESCO’s Historic Town. It is a process whereby collective interests in a specific era of history would become visible through the physical structure of heritage in cultural and material contexts.
테트라싸이클린 및 테트라싸이클린-구연산 혼합젤로 처리한 치근면의 항 미생물 활성 변화에 관한 연구;In Vivo Study
정희선,한수부,남석우,심창구,계승범,Cheong, Hee-Sun,Han, Soo-Boo,Nam, Seok-Woo,Shim, Chang-Koo,Kye, Seung-Beom 대한치주과학회 1997 Journal of Periodontal & Implant Science Vol.27 No.1
The purpose of this study was to evaluate the substantivity of experimentally developed gel type tetracycline HCl and a mixture of tetracycline-citric acid gel, and compare to those of solution type tetracycline HCl. 11 extracted anterior teeth were subjected to this study. After scaling and root planing teeth were randomly divided into 3 treatments groups : group 1; 3 teeth were irrigated with tetracycline HCl(50mg/ml) solution , group 2; tetracycline gel (5%) was inserted in the periodontal pockets of 3 teeth, group 3; a mixture of tetracycline and citric acid gel was inserted in the pockets of 3 teeth. And 2 teeth treated in 0.9 % sterile saline served as controls. After 5-minute exposure, each tooth immediately extracted and incubated at room temperature for 22 days in tris-buffered saline as a desorption media. The total volume of TBS was removed and replaced with fresh TBS, at 24-h intervals. Removed desorption media transferred to a sterile vial and stored at -70 oC. This procedure was repeated every 24 h throughout the 22-day desorption period. Using Porphyromonas gingivalis as an indicator organism, a microtiter assay was used to evaluate antimicrobial activity desorbed from the teeth. 1. 50mg/ml tetracycline HCl solution exhibited the longest antimicrobial activity. Compared to saline treated group, it showed significant difference on the day 1 and day 2 desorption period. 2. The ODs of 5% tetracycline gel and a mixture of tetracycline-citric acid gel were significantly different during the first 24 hour only. 3. There was no statistically significant difference after the day 3 between the groups.(p<0.05). Despite our expectation a mixture of tetracycline-citric acid gel did not show longer antimicrobial activities than those of tetracycline gel, and the solution type exhibited the longest activities. Because the gel type agents may stay in the subgingival environment longer than the solution, if the teeth were not extracted immediately after the delivery of the agent, the result could be different. hus this result suggests the possibilities of practical use of these kind of gel type agents.
정희선,이세윤,김규헌,윤태형,이혜영 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10
그린커피빈추출물은 "체지방 감소에 도움을 줄 수 있음"으로 2014년에 기능성 원료로 인정받았고, 지표성분은 클로로겐산이며, 카페인이 함유되어 있다. 「건강기능식품 기능성 원료 및 기준·규격 인정에 관한 규정」에 따라 인정된 기능성 원료는 인정받은 일로부터 6년이 경과하고, 품목제조신고 50건(생산실적이 있는 경우에 한함) 이상인 경우 「건강기능식품의 기준 및 규격」에 추가로 등재할 수 있다. 그린커피빈추출물이 추가 등재될 경우를 대비하여 표준화된 클로로겐산 시험법을 설정하고, 카페인이 동시 분석되도록 최적화하는 연구를 진행하였다. 기기분석 조건과 전처리조건을 비교 분석하여 클로로겐산과 카페인을 30% 메탄올 추출 후 액체크로마토그래프를 통해 330 nm, 280 nm에서 분석하도록 시험법을 설정하였다. 시험법 밸리데이션 결과, 직선성 정량범위 내에서 상관계수(R²) 0.999 이상의 유의수준을 보였고, 클로로겐산과 카페인 검출한계는 0.5와 0.2 μg/mL, 정량한계는 1.4와 0.5 μg/mL로 나타났다. 정밀도와 정확성 결과는 AOAC 밸리데이션 가이드라인을 통해 적합함을 확인하였고, 시험법을 최종적으로 확립하였다. 시제품과 유통제품의 제형별 적용성 검토 결과, 클로로겐산과 카페인을 동시에 정량 가능한 시험법임을 확인하였다. * 본 연구는 2021년도 식품의약품안전처 연구개발비(21161미래식044)로 수행되었으며 이에 감사드립니다.