Alocasia amazonica의 생물반응기 배양에서 배지 공급 방식이 식물체의 생장과 잎조직 및 기공의 특성에 미치는 영향

조은아,한은주,백기엽,Cho, Eun-A,Hahn, Eun-Joo,Paek, Kee-Yoeup 한국식물생명공학회 2006 식물생명공학회지 Vol.33 No.2

Comparative studies on medium supply in bioreactors (raft, immersion and ebb and flood) have revealed that multiplication and growth of Alocasia Amazonica were greatest in the raft system, while lowest in ebb and flood system. In the raft system, the basal part of the shoots was continuously in contact with medium, which enabled a constant uptake of nutrients as well as aeration to the explants. The number and the size of leaf stomata were higher in the raft system compared with immersion and ebb&flood system. In the immersion system, plantlets were deformed and epidermal cells in leaves were irregular with a large intercellular space. The results suggested that the medium supply should be controlled properly to maintain normal and healthy plantlets during liquid cultures in bioreactors Which affects morphology and physiology Of the plantlets.

버진, 퓨어, 포마스 올리브유의 이화학적인 특성 비교를 통한 품질등급 구분에 관한 연구

조은아,이영상,Cho, Eun-Ah,Lee, Young-Sang 한국식품영양학회 2014 韓國食品營養學會誌 Vol.27 No.3

This study investigated the classification of olive oils that are mainly distributed in Korea via imports. The fatty acid contents, degree of color, pigments, anti-oxidants, and sterol contents are analyzed on the different types of olive oil as follows: 10 kinds of extra virgin olive oil, 5 kinds of pure olive oil, and 5 kinds of refined olive-pomace oil. As a result of fatty acid analysis, the majority of oleic acid ($C_{18:1}$) and palmitic acid ($C_{16:0}$), and minority of linoleic acid ($C_{18:2}$) and stearic acid ($C_{18:0}$) were detected without any significant differences between the grades of olive oils. The UV spectrum is related to the ${\Delta}K$, and it is a part of the analysis factor for the purity and degree of degradation of the oil. Extra virgin olive oil had ${\Delta}K$ of almost 0, pure olive oil had 0.07~0.12, and refined olive-pomace oil had 0.1~0.13. These differed from extra virgin oil, and the pure or pomace oil ${\Delta}K$ had a confirmed distinct difference. The color degrees of chlorophyll with a low $L^*$ value and $(-)a^*$ (green) and carotenoid with $(+)b^*$ (yellow) were confirmed to have correlation between extra virgin and other olive oils. To compare chlorophyll and carotenoid as natural pigment in olive oils, 417 nm and the ratio of the absorbance at 480 nm (417/480) was calculated at 1.62 of extra virgin, 1.85 of pure olive oil, and 3.32 of refined olive-pomace oil. Therefore, it will be possible to distinguish when the extra virgin or pure olive oil are mixed with olive-pomace oil. The total amount of tocopherol, an anti-oxidant, were 19.06 in extra virgin, 10.91 in pure olive oil, and 27.88 in refined olive-pomace oil. The high content of tocopherol in pomace oil caused recovery of solvent extraction from olive pulp. Thus, extra virgin oil and pure olive oil were distinguished by olive-pomace oil. Polyphenol compounds in extra virgin olive oil measured high only in ferulic acid with 0.543 mg/kg, caffeic acid with 0.393 mg/kg, and other vanillic acid, vanillin, and p-coumaric acid had similar amount of 0.3 mg/kg. All grade of olive oils had the highest ${\beta}$-sitosterol content. Af (Authenticity factor) value were estimated with campesterol and stigmasterol content ratio (%). Af value was 19.2 in extra virgin olive oil, 17.1 in pure olive oil, 16.9 in refined olive-pomace oil, which were distinctive from sunflower oil with 3.7, corn oil with 2.4, and soybean oil with 2.0. It can provide important indicator of olive oil adulteration with other cheap vegetable oils. The results of this study can be used as a database for the classification of olive oil grade and distinguishing between the different types of oils.

FT-IR과 탄소동위원소 분석을 통한 연어유의 구분에 관한 연구

조은아,차윤환,이영상,Cho, Eun-Ah,Cha, Yun-Hwan,Lee, Young-Sang 한국식품영양학회 2012 韓國食品營養學會誌 Vol.25 No.4

This study analyzes the structure types of salmon oil to evaluate the purity of salmon oil products based on the 38 different types of imported salmon oil products distributed in the Republic of Korea. The major types of omega-3 foods in the salmon oil are ethyl ester (EE) and triglyceride (TG). If the salmon oil contained potential contaminants and was processed in order to remove it, EE type omega-3 fatty acids are found in concentration. This provides a good guide in assessing if products were made with EE type ingredients or re-esterified contaminated materials. The results of the FT-IR analysis showed significant difference in the C=O, C-O band positions in TG and EE. There were 19 TG type products and 19 EE type products. The analysis of carbon isotope ratio was performed on the types of TG and EE. There were different properties in the 19 TG type products. In one product, the carbon isotope ratio was -25.15 and the other 18 products showed -22.15~-23.96. The carbon isotope ratio of all 19 EE type products showed -21.91~-23.74. The results of the TLC analysis showed similar results with FR-IR. The re-esterified TG form was not detected in the TG type products, confirming that the TG type products contained natural salmon oil. This study aimed to provide the basic material in classifying the types of natural salmon oil and re-esterified salmon oil, by analyzing the pattern and proportion of FT-IR spectrum, carbon isotope ratio, and TLC.

ACTS 신학-신앙 운동과 ACTS 신학공관 작업이해와 "중심진리"에 대한 선교학적 고찰

조은아 ( Eun Ah Cho ) 아세아연합신학대학교 신학연구소 2014 ACTS 신학저널 Vol.22 No.-

The purpose of this thesis is to offer a missiological reflection on what ACTS leadership and community have identified andstudied as “Central Truth” for the past 40 years. Though the notion of “Central Truth” has awakened many to a healthy sense of urgency and in-depth conviction of the significance of salvation through faith in Christ Jesus, when discussing it as the ultimate purpose of faith, one should not overlook doxology which is in fact centralto the entire Bible. Also, when discussing the central truth, sufferingshould be carefully reflected upon, for Christianity as a whole and mission history in particular testify to temporal suffering that precedes the eternal glory of God; God’s mission, after all, has been carried out by the weak whose names we do not even remember and yet were willing to participate in His suffering, having their eyes fixed on His glory. Further, when referring to entering into the Kingdom of God as part of the central truth, one should not fail to understand the necessity of enfleshing God’s kingdom which is both extant and anticipated, both in and beyond human history. Moreover, even in the process of prioritizing what may seem central, the whole, including the peripheral, should not be neglected. Finally, remembering that the expansion of Christian faith has always involved crossing over barriers, ACTS leadership and community should continue to dialogue with those who are beyond our cultural and theological barriers, recognizing in humility that our understanding and practices may still be limited and partial.

연구논문 : 13C NMR 분석 및 지방산 분석을 통한 어유의 종류 구분 및 사용 실태에 관한 연구

조은아 ( Eun Ah Cho ),임성준 ( Sung Jun Lim ),오태헌 ( Tae Heon Oh ),안현주 ( Hyun Joo Ahn ),육수진 ( Soo Jin Yuk ),최진욱 ( Jin Uk Choi ),차윤환 ( Yun Hwan Cha ),이영상 ( Yuung Sang Lee ) 한국식품영양학회 2013 韓國食品營養學會誌 Vol.26 No.3

This study estimates the classification criteria which distinguishes the types of omega-3 health functional foods, fish oils and fish oil usages through 13C-NMR spectra and fatty acids contents analysis. The major fatty acids of omega-3, eicosapentaenoic acid (EPA, C20:5) and docosahexaenoic acid (DHA, C22:6) are being analyzed. 10 ethyl ester (EE) forms and 10 triglyceride (TG) forms are the most common types of fish oils for 20 omega-3 products. Gas chromatography (GC) analysis generally shows the matching EPA and DHA contents of the products listed on the notation. But EE form contents of EPA and DHA are higher and are more varied than the TG form. Most of the samples of EPA/DHA ratio show different content ratios of indicated on the products when comparing with standards. The 13C-NMR analysis of EPA and DHA on sn-1,3 and sn-2 carbonyl peak position with fish oil triglycerides display whether the reconstituted triglycerides (rTG) are being confirmed or not. As a result of the 9 TG form, the 10 TG products showed similar values: EPA sn-1, 3; 13.46~15.66, sn-2; 3.00~4.52, DHA sn-1, 3; 2.43~4.40, sn-2; 3.84~6.36. But one product showed lower contents (EPA: sn-1, 3; 5.88, sn-2; 2.86, DHA sn-1, 3; 2.29, sn-2; 5.95) of EPA, thus it can be considered a different type of oil and only matched six products according to the label. This study is intended to provide basic materials which identify the status for the types and quality of omega-3 fish oil products according to fatty acids profiles and the 13C-NMR spectrum confirmed the location specificity of EPA and DHA.

전환장벽의 두 가지 차원이 전환의도에 미치는 영향에 관한 연구: 호텔 레스토랑을 중심으로

조은아 ( Eun Ah Cho ),김건 ( Gun Kim ) 대한관광경영학회 2015 觀光硏究 Vol.30 No.6

본 연구는 호텔 레스토랑에 있어서 전환정벽과 전환의도의 관계를 조사하고자하며 목적을 달성하기 위하여 문헌 연구와 설문지를 실증분석에 이용하였으며, 총 6개의 가설을 설정하여 이에 대해 검증을 수행하였다. 본 연구의 실증분석 결과는 다음과 같다. 호텔 레스토랑전환장벽 4개 요인 중 ``이성적 재무·혜택 전환장벽``, ‘이성적 학습 전환장벽’, ‘감성적 관계전환장벽’, ‘감성적 애호 전환장벽’ 의 4개의 요인 모두 유의한 부(-)의 영향을 미치는 것으로 나타났다. 전환의도를 낮출 수 있는 영향력에 있어서는 감성적 관계 전환장벽(β=-0.244, p<0.01), 이성적 재무·혜택 전환장벽(β=-0.237, p<0.01), 감성적 애호 전환장벽(β=-0.185, p<0.01), 이성적 학습 전환장벽(β=-0.124, p<0.05)의 순으로 차이가 발견되었다. 그러므로 호텔 레스토랑에서는 마케팅 전략시, 진실된 충성도 고객과 그렇지 않은 유사 충성도 집단, 낮은 충성도 집단, 잠재 충성도 집단의 고객군을 구분하여 전략을 수립할 필요가 있다. The purpose of this study was to investigate the relationship between switching barriers and switching intention in hotel restaurant. This study was analyzed through a questionnaire that based on literature reviews and the derived variables from preceding studies. Multiple regression analysis was used to investigate the 6 hypotheses. Based on the result from the analysis, research hypotheses(H1-H2).were tested. The findings were identified and summarized as follows. All switching barriers ``rational finance/benefit switching barriers``, ``rational learning switching barriers``, ``emotional relational switching barriers`` and `` emotional affective switching barriers`` negatively affects switching intention. The relative importance of the switching barriers(independent variables) in contributing to the variance in the switching intention(dependent variable) is as follows : There are ``emotional relational switching barriers``(β=-0.244, p<0.01), ``rational finance/benefit switching barriers``(β=-0.237, p<0.01), ``emotional affective switching barriers``(β=-0.185, p<0.01), ``rational learning switching barriers``(β=-0.124, p<0.05). Therefore the marketing strategy should be conducted discriminately according to type of customer Switching Barriers in the hotel restaurant industry.

일 지방병원 간호사의 전자의무기록(EMR)에 대한 인식도와 만족도 연구

조은아 ( Eun A Cho ),김명숙 ( Myung Sook Kim ),김계하 ( Kye Ha Kim ) 이화여자대학교 간호과학연구소 2009 Health & Nursing Vol.21 No.2

과다지와 유사한 형태를 보이는 거대 후천손가락섬유각화종 1예

조은아 ( Eun Ah Cho ),이우선 ( Woo Sun Lee ),김시용 ( Si Yong Kim ) 대한피부과학회 2007 대한피부과학회지 Vol.45 No.3

리차드 마이어의 바르셀로나 미술관의 건축적 특징 분석

조은아(Cho, Eun-Ah),김창성(Kim, Chang-Sung) 한국생태환경건축학회 2023 한국생태환경건축학회 학술발표대회 논문집 Vol.23 No.1

여성 노인의 우울과 체형인식, 신체활동, 식습관 및 구강건강의 관계

조은아(Cho, Eun-A),박수희(Park, Soo-Hee) 고령자치매작업치료학회 2021 고령자.치매작업치료학회지 Vol.15 No.1

목적 : 본 연구는 지역사회에서 거주하는 65세 이상 여성 노인의 우울과 체형인식, 신체활동, 식습관 및 구강 건강과의 관계를 알아보기 위해 연구되었다. 연구방법 : 질병관리본부가 2019년에 실시한 지역사회건강조사 참여자 중 여성노인 43,564명을 대상으로 하였다. 우울 경험여부 응답결과를 바탕으로 체형인식, 식습관, 구강건강과의 관계를 분석하였다. 인구학적 특성은 빈도분석, 우울과 신체활동, 식습관 및 구강건강은 상관관계 분석을 하였다. 연구결과 : 연구결과 우울은 체중조절노력, 중등도 신체활동과 정적인 상관관계를 나타냈고, 아침식사 빈도, 식단이 염분 함유, 주관적 구강건강, 저작불편 경험과 부적인 상관관계를 나타냈다. 체형인식, 격렬한 신체활동과는 유의한 상관관계를 나타내지 않았다. 결론 : 본 연구의 결과 신체활동 및 구강건강과 관련 된 요소들이 우울과 관계가 있다는 것을 알 수 있었다. 이후 여성노인의 우울을 예방하고 관리하기 위하여 다양한 요소들을 고려해야할 것이며, 이를 위한 의미있는 정책 방향성에 대한 연구가 필요할 것이다. Objective : This study was studied to find out the correlation between depression and body type recognition, physical activity, eating habits and oral health in community-dwelling female seniors aged 65 and older. Methods : Among the participants in the community health survey conducted by the Korea Centers for Disease Control and Prevention in 2019, 43,564 elderly women were surveyed. Based on the results of the depression experience response, the relationship between body type recognition, eating habits, and oral health was analyzed. Demographic characteristics were often analyzed, depression and physical activity, eating habits and oral health correlated. Results : Studies have shown that depression has a static correlation with weight control efforts and moderate physical activity, breakfast frequency, diet salt content, subjective oral health, and work discomfort experience. It showed no significant correlation with body shape recognition or intense physical activity. Conclusion : The results of this study show that factors related to physical activity and oral health are related to depression. In the future, various factors will need to be considered to prevent and manage depression in older women, and research on meaningful policy directions will be needed.