The Entrapment of Vitamin E Acetate in Porous Spheres

양윤정,배봉진,이규식,전인구,Yang, Yoon-Jeong,Bae, Bong-Jin,Lee, Kyu-Sik,Chun, In-Koo 한국약제학회 1991 Journal of Pharmaceutical Investigation Vol.21 No.1

Porous spheres composed of natural waxes and inorganic materials containing vitamin E acetate as a drug were prepared by impregnation method. Furthermore, the amount of vitamin E acetate entrapped in the spheres and the release rate of vitamin E acetate from the spheres were studied. The impregnation of vitamin E acetate was carried out by dipping the spheres in vitamin E acetate solutions. Entrapment mechanism of vitamin E acetate could be expressed in terms of Langmuir's adsorption isotherm. The amount of vitamin E acetate entrapped in porous spheres was influenced by the structure and concentration of the polymer used in vitamin E acetate solutions, and the concentration of vitamin E acetate. Release characteristics of vitamin E acetate from the spheres were investigated by withdrawing samples periodically and analyzing them by spectrophotomer.

GC/MS에 의한 담석과 담즙내의 Cholesterol, Bile Acids 및 Sterols의 동시 Profiling

양윤정,이선화,김현주,정봉철,Yang, Yoon Jung,Lee, Seon Hwa,Kim, Hyun Joo,Chung, Bong Chul 대한화학회 1998 대한화학회지 Vol.42 No.3

담즙산 분비 저하 및 콜레스테롤의 과도한 분비는 담석 형성의 주된 원인으로 담즙내의 담즙산과 콜레스테롤 및 그 전구 물질인 스테롤의 상대적인 농도는 담즙 성분의 이상을 알아보기 위한 중요한 지표로 알려져 있다. 이에 본 연구에서는 염기를 이용한 가수 분해와 pH 14와 1에서 두 번의 액체-액체 추출을 거친 후, $MSTFA/NH_4I$ 혼합액으로 유도체화 시키는 전처리 방법과 GC/MS를 이용한 새로운 분석 방법을 설정, 담즙산과 스테롤 그리고 콜레스테롤의 동시 분석을 시도하였다. 그 결고 회수율은 73.56-96.95% 이었고 within-a-day 및 day-to-day 분석의 RSD 값은 각각 1.72-13.79%, 0.68-14.10% 이었으며, 이 방법을 간내 담석증 환자에 적용하여 담즙과 담석내에 존재하는 7종의 스테롤과 5종의 담즙산, 그리고 콜레스테롤의 농도 및 그들간의 상대적인 농도 분포를 측정한 결과 담즙고 담석에서 현저히 다른 차이를 보였다. Cholesterol supersaturation in bile, which causes gallstone formation, is the result of low bile acid secretion or high cholesterol secretion. The quantitative analysis of cholesterol, bile acids and sterols which are precursors of cholesterol have been used to examine the changes in bile component. We described a simple, sensitive and reproducible method for simultaneous determination of cholesterol, five bile acids and seven sterols in human bile juices and gallstones by capillary column gas chromatography-mass spectrometry (GC/MS). Clinical samples were hydrolyzed by alcoholic KOH, extracted twice (pH 14 and 1) and derivatized to trimethylsilyl (TMS) ether with $MSTFA/NH_4I$ (N-methyl-N-trimethylsilyltrifluoroacetamide/ammonium iodide) mixture in order to be detected on the GC/MS. The good quality control data were obtained through within-a-day and day-to-day test (RSD values were 1.72-13.79, 0.68-14.10, respectively) and the recovery range of them was 73.56-96. 95 Using this method, biliary and gallstone compositions in the patients with intrahepatic stones were analyzed. The amounts and its relative distribution of cholesterol, bile acids and sterols showed different pattern in bile juices and gallstones.

노인일자리사업 정책결정ㆍ집행과정에서의 '이용자 참여'에 관한 연구

양윤정(Yunjeong Yang),정영순(Youngsoon Chung) 한국노년학회 2011 한국노년학 Vol.31 No.4

본 연구는 노인일자리사업 정책과정에서의 이용자 참여에 관한 탐색적 연구로서, 정책 결정 및 집행 과정에서 소위 정책대상자이자 이용자인 노인들의 참여는 어떻게 이루어지는가에 관한 연구 질문에서 시작되었다. 노인일자리사업이 비교적 성공적으로 자리잡고 있는 서울시 A구 사례를 중심으로 중앙정부에서부터 사업수행 기관의 실무선까지 정책과정의 각 단계 담당자들과의 인터뷰를 통한 질적 연구를 바탕으로 하였다. 분석 결과, 정책결정과정에서의 이용자 직접 참여는 전무(全無)하다고 볼 수 있으며, 이는 하향식 정책과정의 구조적 한계와 관료들이 파악하는 현재 노인들의 역량 부족에 기인하는 것으로 나타났다. 한편, '윗선'의 인식변화와 주요이슈에 관한 '사회적 합의'는 이러한 경직된 정책과정에 변화를 가져올 수 있는 것으로 파악되었다. 정책집행 과정에서도 이용자 참여는 근무환경의 개선 등 제한된 범위 내에서 부분적으로 이루어지고 있었는데, 이에는 사업수행기관의 적극적인 지원이 필요한 것으로 나타났다. 기관의 적극적 지원이 뒷받침되었을 때 참여노인의 역량 강화에 따라 사업에의 참여도와 만족도 역시 높아지는 것으로 나타나 실질적 지원의 강화가 현 시점에서 이용자 참여를 높이는 데 매우 중요함을 시사하고 있다. 한편, 관련자들은 베이비 붐 세대의 은퇴 이후, 즉 미래 노인들의 참여 행태는 노인들의 역량 면에서나 사회적인 인식 면에서 기존 노인세대와는 다를 것으로 예상하고 있었다. 이는 미래의 활발한 이용자 참여를 위해서는 정부를 비롯한 관련 기관들이 지금부터 정책적인 준비와 지원을 해야 함을 시사한다. This study aims at examining the extent to which older people participating in the Seniors' Job Programme do involve in policy-making and implementation processes of the programme. The study is based on qualitative interviews with seven experts among those involved in the policy process in District A of Seoul. They include civil servants of central and local governments and social workers of implementing bodies such as seniors' welfare centres and job centres. The results show that firstly, practically no direct involvement of participants is being made at the policy-making level, due mainly to the traditional top-down approach of policy process in Korea and also to prejudices of public servants concerned on the current senior citizens' capability as contributor to public policy-making. User-involvement is being made, however, at the implementation level: participants are making, although minor, suggestions for improvements of working conditions and they are being listened to by frontline social workers. Support by the implementing institutions turns out to be necessary for this. Lastly, in contrast with the present, many interview participants are expecting a more active participation from the future generation, i.e. the baby-boom generation when they would have retired. The study concludes by calling for enhancement of institutional and capacity-building support for active user involvement in the future.

보육교사 대상 방문 및 스마트폰 앱 기반 감염예방교육 프로그램 효과

양윤정(Yang, Yun Jeong),권인수(Kwon, In Soo) 한국간호과학회 2017 Journal of Korean Academy of Nursing Vol.47 No.6

내당능장애 가능성이 있는 중년 남성의 신체적 특성, 영양소 섭취상태 및 혈중 지질농도 양상

양윤정(Yang Yoon Jung),김진옥(Jean Chinock Kim) 韓國營養學會 2000 Journal of Nutrition and Health Vol.33 No.1

내러티브 텍스트를 활용한 어린이 영어교육

양윤정(Yunjeong Yang) 한국영미문학교육학회 2023 영미문학교육 Vol.27 No.3

This study discusses the educational value of narrative texts in order to utilize them in English education for elementary school and younger children. As children are born with the storytelling gene, listening to stories and storytelling are language acquisition methods close to children’s nature. In addition, the English curriculum was revised in 2022 to achieve ‘English communicative competence.’ Sub-competencies are presented as ‘cooperative communication,’ ‘knowledge information processing,’ ‘creative thinking,’ ‘self-management,’ ‘community,’ and ‘aesthetic sensibility’ (Ministry of Education, 2022c), emphasizing emotional aspects. Therefore, English education using narrative texts is urgently required. This study discusses academic and practical considerations to utilize narrative texts more effectively. Furthermore, it analyzes Anthony Browne’s picture book Gorilla as an example and creates a lesson plan.

논문 : 19세기 영국 판타지소설 연구 -루이스 캐럴과 조지 맥도널드를 중심으로

양윤정 ( Yun Jeong Yang ) 한국영어영문학회 2010 영어 영문학 Vol.56 No.5

There was a Golden Age of Fantasy novels in the United Kingdom in the 19th Century, which had the major writers, Lewis Carroll and George MacDonald. These writers pushed the boundaries of imagination and created a new world in which explore their own selves and societies. Fantasy novels flowered in the 1860s when a group of writers including Carroll and MacDonald published their works. These writers used the trait of dream framing to create their own fantasy world in which they took the action against the complicated and oppressive Victorian reality. Carroll`s fantasy worlds of Alice in Wonderland and Through the Looking-Glass were an insane and chaotic world where the certainty of the real world was overturned. MacDonald`s dream worlds of At the Back of the North Wind and the Princess books including The Princess and the Goblin and The Princess and Curdie were ideal societies in which imaginative characters could create harmony between fantasy and reality. Fantasy writers engaged in making journey to other lands to do philosophical and moral discussion critiquing Victorian society and to find insights into those problems in their works. Thus, their fantasy journey traverses time and place can produce some suggestive answers to the questions that lie in other times and realities as well as theirs.

투약에 대한 입원환자의 간호요구도와 만족도

양윤정(Yang Yeunjung),주현옥(Ju Hyeonok),임경희(Lim Kyunghee),박연정(Park Yeonjung),손인혜(Son Inhye),이은남(Lee Ennam) 기본간호학회 2006 기본간호학회지 Vol.13 No.1

Purpose: This study was done to identify the differences nursing needs and satisfaction with medications in patients admitted to hospital. Method: The participants were 258 patients admitted for 3days or more to D hospital. The data were analyzed using frequencies, percentages, means, standard deviations, t-test and ANOVA, SPSS-WIN 11.0 was used to assist analysis. Results: The results are as follow: 1. Variables effecting nursing needs were education and economic level. All scores of nursing needs were higher in the group with less than middle school education compared to those with high school education or higher. 2. The scores for nursing needs were higher than the score for satisfaction in common item and injection domains. The scores for nursing satisfaction were higher than nursing needs in the oral medication domain, 3, The item with the highest difference between the scores for nursing needs and satisfaction was 'I want to know the side effect of the drugs'. Conclusion: Patients admitted to hospital want to know the therapeutic effect, side effect and reason for their drugs. However satisfaction with medication was not equal to needs. It is necessary to emphasize clinical pharmacology in nursing education programs.

오스카 와일드의 사회적 미학: 「행복한 왕자 」와 「어부 」와 그의 영혼 가르치기

양윤정(Yunjeong Yang) 한국영미문학교육학회 2019 영미문학교육 Vol.23 No.3

Oscar Wilde’s fairy tales express his ‘socio-aesthetics’ well. Socio-aesthetics is a term that includes Wilde’s social interest in art and aesthetic sensibility to capture the essence of beauty. Wilde was influenced by the social reform movement as he interacted with fairy tale writers at the time. His views appear in his fairy-tale book, The Happy Prince and Other Tales (1888) and A House of Pomegranates (1891). “The Happy Prince” in The Happy Prince and Other Tales allows him to work and expand his ideas on Fabian socialism, described in his essay “The Soul of Man Under Socialism” (1891). “The Fisherman and His Soul” in A House of the Pomegranates expresses a critical view of the religion of his time, writing about his religious interests and his own homosexuality problems. Wilde used the symbolic nature of fairy tales to relate his social interests and his problems to social aesthetics in his fairy tale works.

V₂O₃와 CaO의 농도에 따른 5-성분계 석유코크스 슬래그의 점도 변화

양윤정 ( Yoonjung Yang ),오명숙 ( Myongsook S. Oh ) 한국공업화학회 2020 공업화학 Vol.31 No.6

가스화 공정에서 원료 회분의 연속적인 제거를 위해 회분 성분에 따른 점도 거동뿐만 아니라, 온도가 낮아지면서 형성되는 결정체가 점도에 미치는 영향이 연구되어야 한다. 본 연구에서는 석유코크스 슬래그의 주성분 중 CaO와 V₂O₃성분의 변화에 따른 슬래그의 점도 거동과 결정 분석을 통해 이 두 성분이 석유코크스 슬래그 점도에 미치는 영향을 조사하였다. 각각의 함유량을 변화시키면서 약 1600 ℃부터 약 1100 ℃까지 온도를 낮추며 점도를 측정하였고, 냉각된시료의 결정상이 분석되었다. 측정된 시료는 대부분 결정형 점도 거동을 보여주었다. V₂O₃의 농도가 증가할수록 점도는 유리형에서 결정형으로 변화하였고, Tcv도 증가하는 경향을 보여주었다. CaO의 경우 농도가 증가할수록 낮은 점도와 낮은 Tcv를 보여주었다. 기준 시료를 포함한 모든 시료의 상, 중, 하부에서 다른 결정을 볼 수 있었다. 상, 중부에는 anorthite와 Ca-V 상이 관찰되었으면 하부에서는 주로 V₂O₃ 결정과 anorthite이 관찰되었다. 슬래그의 바나듐은 Ca-V상, V-Fe, 용융 슬래그 상을 형성한다. 융점이 낮은 Ca-V 상은 점도를 낮추는데 기여하는 것으로 보인다. Petroleum coke (petcoke) is widely used, next to coal, as a gasification feedstock. In gasification processes, the viscosity of the ash and the formation of crystalline phases must be understood to ensure the continuous removal of slag. This study investigates the effect of CaO and V₂O₃ on petcoke slag viscosity. The viscosity of the molten slag was measured in the temperature range of 1100~1600 ℃ while varying the concentration of each component. The crystalline phases formed in a cooled slag were examined. The most slag samples tested in this study exhibited crystalline slag behavior. The increased CaO concentration resulted in a lower viscosity and a lower Tcv. The viscosity behavior changed from the glassy to crystalline slag and also showed a higher Tcv as the concentration of V₂O₃ increases. Most slag samples showed different crystalline phases from top to bottom. Anorthites and Ca-V phases were observed in the top and middle section, while the bottom section mainly showed V₂O₃ and anorthite. The vanadium in the ash forms Ca-V and V-Fe phases and also remains in molten slag. A low melting Ca-V phase can contribute to lowering the viscosity.