ω-3계와 ω-6계 고도 불포화 지방산의 혼합 비율이 다른 유지가 흰쥐의 지질대사에 미치는 영향(Ⅰ) - 뇌, 신장, 고환 및 혈청 lipoprotein을 중심으로 -

강정옥(Kang Jeong-ock) 한국식품영양과학회 1989 한국식품영양과학회지 Vol.18 No.3

ω-3계와 ω-6계 PUFA의 함유비율을 달리했을때 흰쥐장기의 지질대사 및 혈청 lipoprotein 조성에 미치는 영향을 알아 보고자 실험한 결과를 요약하면 아래와 같다.<br/> 뇌 조직중의 총cholesterol농도는 전 식이군 간에 유의성은 없으나 ω-6계 linoleic acid 함유율이 높은 고추씨기름 10%단독 식이군에서 높은 함량을 보이는 반면 ω-3계 linolenic acid 함유율이 높은 들깨유 식이군 및 혼합 식이군에서 감소하는 경향을 보였다. 한편 중성지방 및 인지질 농도는 고추종자유 함유율이 높은 식이군에서 서서히 증가하지만 들깨유 함유량이 많아질수록 점차 감소하였다.<br/> 시장 조직중의 총cholesterol농도는 전 군간에 유의성이 없었으며, 중성지방 농도는 ω-6계 linoleic acid함유 비율이 높은 고추종자유 식이군이 가장 높았고 혼합 식이군에서 낮았다. 인지질 농도는 10% 고추종자유 식이군에서 현저히 낮았다.<br/> 고환 조직중의 총cholesterol농도는 혼합 식이군 및 들깨유 식이군에서 낮았으며, 중성지방 농도는 들깨유 식이군에서 상승하였고 혼합 식이군에서 감소하였다. 인지질 농도는 5군에서 낮았다.<br/> 혈청 lipoprotein pattern에서 HDL은 들깨유 함량이 많은 식이군(1,2,3)에서 상승된 반면 고추씨기름 식이군에서는 가장 낮았으며, LDL은 들깨유 비율이 높아질수록 점차로 낮아졌다. This research was intended to know the influence of ω-3 and ω-6 polyunsaturated fatty acids on rat's brain, kidney, testis tissues and composition of serum lipoprotein. Different kinds of diets containing perilla oil (PO) and red pepper oil (RPO) were administered to the rats: group 1, 10% PO; group 2, 7.5% PO and 2.5% RPO ; group 3, 5% PO and 5% RPO ; group 4, 2.5% PO and 7.5% RPO ; group 5, 10% RPO. The following are the results.<br/> 1. No significance of cholesterol concentration in brain was noticed among the groups, but group 5 was the highest and other groups tended to decrease.<br/> 2. As for concentration of triglyceride and phospholipid, the groups with more percentage of RPO increased gradually while those with more PO decreased by degrees.<br/> 3. No significance of cholesterol level in kidney was found among the groups. About triglyceride level. group 5 was the highest and it was relatively low in groups2, 3 and 4. group 5, however, was the lowest in phospholipid level.<br/> 4. As to cholesterol concentration in testis, groups 1 to 4 were low. About triglyceride level, group 1 increased while groups 2 to 4 decreased.<br/> 5. Concerning lipoprotein pattern in serum, HDL increased in groups 1 to 3, while LDL decreased gradually with the increase of perilla oil.

감마선 조사로 유도된 세포 손상 마우스에서 루틴 투여 후의 방사선 방호 효과

강정애(Jung Ae Kang),윤선혜(Seon Hye Yoon),노종국(Jong Kook Rho),최대성(Dae Seong Choi),장범수(Beom-Su Jang),박상현(Sang Hyun Park) 한국식품과학회 2015 한국식품과학회지 Vol.47 No.3

본 연구는 BALB/c 마우스에서 감마선 조사 후 루틴을 7일 동안 경구투여하여 감마선 조사로 인한 조혈계 및 간세포 손상에 대한 방사선 회복 효과를 검토하였다. 루틴의 투여는 감마선 조사군에 비해 조혈 면역계 손상을 억제하여 보호하였으며, 증가된 간독성 지표 효소도 유의적으로 감소하여 간세포 손상에 대한 보호효과를 확인하였다. 방사선 조사에 의해 체내에서 생성된 자유 라디칼은 생체물질과 결합하여 지질과산화를 일으키고 산화적 스트레스를 유도하여 조직을 손상시킨다. 루틴을 투여한 군은 감마선 조사군에 비해 지질과산화가 유의적으로 낮게 나타나 방사선에 의한 장해를 감소시킨 것으로 사료된다. 루틴을 투여한 군의 항산화 효소의 활성은 감마선 조사군에 비해 유의적으로 증가하여 생체 내에 항산화 활성을 회복시켰다. 이 상의 결과를 통해 방사선 조사 후에 루틴의 투여는 방사선에 의한 조혈계 및 간세포 손상에 대해 회복 효과가 있어 방사선 보호제로 유용하게 사용될 수 있다. This study aimed to investigate the therapeutic effect of rutin against whole-body γ-irradiation in BALB/c mice. BALB/c mice were randomly divided into four groups and exposed to 6 Gy γ-irradiation. One hour later, mice were orally administered rutin (50 and 100 ㎎/㎏) for seven consecutive days. γ-Irradiation (6 Gy) resulted in cellular damage as manifested by elevated levels of plasma hepatic marker enzymes and lipid peroxidation in liver tissue, accompanied with decreased spleen and thymus indices, and white blood cell count. In addition, γ-irradiation significantly decreased the levels of antioxidant enzymes such as superoxide dismutase, glutathione peroxidase and catalase. Rutin treatment significantly protected against γ-irradiation-induced cellular damage, which was evident by the improvement in the status of most of the investigated parameters. Therefore, rutin has beneficial effects against radiation-induced damage.

기업의 사회적 책임 활동이 조세회피와 소유구조의 관계에 미치는 영향

강정연(Kang, Jeong-Yeon),임영관(Lim, Young-Kwan),김영철(Kim, Young-Chul) 글로벌경영학회 2015 글로벌경영학회지 Vol.12 No.4

This study investigates the relation between tax avoidance and ownership structure and the extent to which the relation is affected by corporate social responsibility. Tax avoidance is defined as the reduction of explicit tax payments over time through all means of income reported to shareholders. To measure tax avoidance, we employ CASH ETR and discretionary BTD. Ownership structure is measured by controlling shareholder’s portion, institutional holdings and foreign investor’s holdings. We measured Corporate Social Responsibility as KEJI Index of The Citizens’ Coalition for Economic Justice. Our sample consist of the firms listed on Korean Stock Exchange over the period of 2001 to 2009, and the sample size is 3,284 firm-year observations for CASH ETR. The empirical results of this study are as follows. First, Tax avoidance has negative association with foreign investor’s holdings. Second, The negative association between tax avoidance and foreign investor’s holdings decrease with the efficiency of Corporate Social Responsibility. The result of this study point to CSR is significant factor of the relation of tax avoidance an ownership.

이륜자동차 후방시계 개선을 위한 기준 비교연구

강정중(Jeongjung Kang),정윤재(Yunjae Jeong),윤영식(Youngsik Yoon),이종현(Jonghyun Lee) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11

The most important functional aspects of any indirect visibility system for use on motorcycles are how quickly and accurately it enables drivers to detect, locate, and identify targets that are likely to be encountered around the vehicle. The purpose of this comparative study is to identify the data to improve the field of indirect vision of motorcycles in korea. The comparative analysis was made of the rear view mirrors of motorcycles in Korea with ECE Regulation 81, the article 44 of the Safety Regulations for Road Vehicles in Japan, FMVSS and CMVSS. And It was measured to the installation positions, coefficient of reflection, and the radius of curvature of review mirrors sold in Korea. As a result, We found it is necessary to harmonize KMVSS in regards to rear view mirrors with ECE R.81 in order to improve fields of indirect vision and enhance safety of the motorcycle.

영어 수업나눔 과정에 나타난 초등 예비교사의 교사학습과 경험 분석

강정진 ( Kang Jung Jin ) 글로벌영어교육학회 2022 Studies in English education Vol.27 No.1

This study examines the experiences of teacher learning and lesson sharing of pre-service elementary school teachers in the English lesson sharing model process. For this purpose, data were collected from 35 pre-service teachers attending a national university of education and taking an English Integrated Education Practice class at the time of the study. The data used in the analysis were three video analysis assignments in the pre-lesson sharing stage, two lesson sharing recordings in the lesson sharing stage, and one reflective journal in the reflective stage. As a result of the analysis, first, in the lesson sharing preparation stage, pre-service teachers mainly experienced individual teacher learning opportunities. They understood and learned their colleagues’ various perspectives on English instruction. They also began to look critically at their previous thoughts on English education. In the lesson sharing stage, through social interaction with colleagues, pre-service teachers understood various perspectives and methods of English instruction and improved their communication skills for class sharing. They also showed the ability to ask questions by analyzing the lesson and logically answering the questions of fellow teachers. In the reflective stage, pre-service teachers reflected on their classes and thought about ways to improve them. They identified the strengths as well as the shortcomings of their classes and formed a positive attitude toward the English instruction demonstration. This reflection led to new determination and motivation concerning English instruction as a pre-service teacher. Pedagogical implications and future research are also discussed.

Lighting Global의 태양광 조명 시스템 인증제도

강정모(Jeungmo Kang),김경아(Kyunga Kim),장우진(Woojin Jang) 한국태양에너지학회 2018 한국태양에너지학회 학술대회논문집 Vol.2018 No.4

율곡 이이(李珥)의 정치사상에 나타난 대동(大同)ㆍ소강(小康)ㆍ소강(少康)

강정인(KANG Jung In) 한국정치학회 2010 한국정치학회보 Vol.44 No.1

이 글에서 필자는 율곡의 정치사상에 나타난 대동(大同)ㆍ소강(小康)ㆍ소강(少康) 개념을 분석하였다. 먼저『예기(禮記)』와『율곡전서(栗谷全書)』에 각각 나타난 大同과 小康을 비교하면서 율곡이 大同ㆍ小康 개념을 근본적으로 혁신했음을 밝혔다. 이어서 필자는 小康과 少康을 혼용하던 조선시대의 일반적인 언어관행과 달리 율곡이 小康과 少康을 구분하여 사용했음을 지적하고 양자가 지닌 의미상의 차이를 해명하였다. 이 과정에서 필자는 율곡이 스스로 小康이라는 단어를 사용한 적이 없으며, 율곡이 사용한 少康개념은 주로 패도의 결과 얻어진 정치적 상태를 지칭하는 경우가 많다는 점을 밝혔다. 마지막으로 이 연구가 제기하는 추가적인 의문과 한계를 제시하면서 이 글을 마무리했다. The purpose of this essay is to analyze Great Harmony(大同), Lesser Prosperity(小康) and Little Tranquility(少康) in Yulgok Lee Yi’s Political Thought. First, it shows that Yuigok innovated radically the concepts of Great Harmony and Lesser Prosperity, by comparing his use of the concepts in the Collected Works by Yulgok (栗谷全書) with those in the Book of Rites. He eliminated all the differences between Great Harmony and Lesser Prosperity except the difference in the voluntary abdication and hereditary transmission of the throne and thereby integrated and reduced them into the subtypes of Mencius' Royal Rule(王道). Second, the paper demonstrates that Yulgok distinguished Less Prosperity and Little Tranquility sharply and used them differently, contrary to the general convention to use them interchangeably in his days. The analysis shows that he never used the word Lesser Harmony by himself, except quoting others' usage, and used the concept of Little Tranquility to refer to Mencius' Compulsory Rule (覇道). The author suggests that existing literature has failed to recognize Yulgok's conceptual innovation and distinction. Finally, he concludes the paper by indicating its limit and further academic questions to be raised.

성인(聖人)에 관한 『한비자(韓非子)』의 중층적 언술 검토

강정인(Kang Jung In),김태환(Kim Tae Hwan) 한국정치학회 2017 한국정치학회보 Vol.51 No.2

이 논문의 목적은 『한비자』에 나타나는, 일견 모순되어 보이는 성인에 관한 중층적인 언술에 주목하여 이를 종합적이고 체계적으로 해석하는 것이다. 이를 위하여 본론에서는 성인에 대한 한비자의 태도가 긍정적인지 부정적인지에 따라, 긍정적이라면 옛 성인의 가르침을 받아들이는 것에 긍정적인지 부정적인지에 따라 해당되는『한비자』 구절들을 크게 세 가지 유형으로 분류하고, 각각의 유형에서 드러나는 특징들을 구체적으로 살펴보았다. 결론에서는 일견 중첩되고 상호 모순되어 보이는, 성인에 관한 『한비자』의 언술이 ‘법술에 의한 통치’라는 법가의 사상을 효율적으로 뒷받침하기 위한 이론적 도구라는 점을 ‘중층성’이라는 개념을 통하여 정리하였다. The purpose of this paper is to provide a systematic interpretation of the contradictory and multi-layered discourses on the sage which are found in HanFeizi. To do this, first, it classifies various discourses on the sage in Hanfeizi into three types according to whether they are affirmative or negative in their evaluation of the sage, and if affirmative, then, whether they are positive or negative in their attitude to accept and follow the teachings of the sage. Thereafter the paper analyzes the features of each type in detail. In conclusion, it seeks to show that discourses on the sage which often appear contradictory are only intended to be a theoretical device to support Legalist position which stresses the rule by law and method.

G. Hauptmann의 << Bahnwarter Thiel >>과 Naturalimus 소고

강정자 ( Jung Ja Kang ) 한국독어독문학교육학회 1983 獨語敎育 Vol.1 No.-

G. Buchner의 정치이념에 대한 소고 - Dantons Tod에서 -

강정자 ( Jung Ja Kang ) 한국독어독문학교육학회 1984 獨語敎育 Vol.2 No.-