Purge & Trap-GC를 이용한 의약품 필름코팅 정제 중 잔류용제에 관한 연구

장준식,이명자,소유섭,문춘선,이주헌,박희라,김진숙,강경모,이선옥,방성연,유미자,유문균,금오성,이병욱 식품의약품안전청 2000 식품의약품안전청 연보 Vol.4 No.-

의약품은 약물을 생체에 적풋하기 위하여 유효성분의 효과가 언제나 일정하게 확보되고 사응에 편리하도록 만들어지는 것이므로 유효썽분 이외에 약효에 영향을 주지 않는 성분이 첨가되는 경운가 많다. 이 때 사용되는 용매들은 제피의 광택 및 건쪼시간의 단축 등을 위하여 휘발점이 낮을 용매들이 주로 사용되어진다. 본 연구는 의약품 필름코팅정제 중 잔류용매 4종(chlorofonr benzen, trichloro ethylen, 1,4-dioxane)에 대한 변형된 pirge & trap-GC 장치를 이용한 동시분석방법을 개발하였으며, 각 표준품의 RSD 값은 chloroform 3.03%, benzen 3.17%, trichloroethylen 3.69% and 1,4-dioxane 3.41%였다. 또한 시중 유통중인 의약품 50종에 대하여 잔류웅매 양을 측정하였으며, 검출되는 잔류용매는 한 건도 없었다. This study nras carried out to develope the analytical method for the mixture of chlorefonn, benzen, trichloroethylen and 1,4-dioxane simultaneously and determine the remainingorgauic solvents in coating tablets by Purge & Trap-GC. The results were as follouFs ; 1. Chloroform, benzen, trio:tloroethylen and 1,4-dioxane separated by tenax #5 trap by HP-624GC column by terrlperature programming. The peaks were separated completely at retentiontime of 6.88min for chloroform, 8.21min for benzen, 10.38miu for trichloroethylen and 11.95minfor 1,4-dioxane. 2. Standard RSD were individually chloroform 3.03%, benzen 3.17%, trichloroethylen 3.69%and 1,4-diorane 3.41%. 3. 60 samples were not detrcted chloroform, benzen, trichloroethylen and 1,4-dioxane.

Critical Observation of Family Involvement: A Case of Korean American Families in a U.S. Public Kindergarten

( Yoo Seon Bang ) 한국유아교육학회 2012 INTERNATIONAL JOURNAL OF EARLY CHILDHOOD EDUCATION Vol.18 No.2

This study examined how family involvement is initiated, implemented, and negotiated among Korean-American parents, administrators, and teachers in a U.S. public kindergarten. Multiple techniques including observations, informal interviews, and review of documents were utilized. The findings showed that Korean American families experienced difficulties and various barriers in their participation. Their lack of knowledge and unfamiliarity of the current school system often isolated and disadvantaged them in their interactions with the school personnel, and limited their involvement in the school. This study examines Korean American families` interactions with school personnel and involvement in conventional family-involvement activities. These activities consciously and/or unconsciously require specific mainstream knowledge, language, and culture. This unequal school practice privileging a specific culture and empowering the people with the culture has been maintained in this school. Such continuation of the conventional operation and the unbalanced power structure should be recognized and problematized in the school system.

Korean Mothers` Perspectives Regarding Their Children`s Education in the U.S.: Do Mother Want Their Children to Be A Model Minority?

( Yoo Seon Bang ),( Kyee Yum Kwon ) 한국유아교육학회 2008 INTERNATIONAL JOURNAL OF EARLY CHILDHOOD EDUCATION Vol.14 No.2

Rethinking Parental Involvement: A case of a U.S. Public Kindergarten

Yoo Seon Bang 한국유아교육학회 2009 INTERNATIONAL JOURNAL OF EARLY CHILDHOOD EDUCATION Vol.15 No.1

Over the past decade there has been increased attention to the topic of parental involvement in school. However, little research has examined Korean American parents‘ involvement in the U.S. This study examined the perceptions of administrators, teachers, and Korean American parents of parental involvement in a U.S. public kindergarten. Through the in-depth interviews, observations, and school documents, this study showed that there was perceptional disparity regarding parental involvement between the school personnel and the Korean American parents. While all the participants regardless of their positions supported the significance of parental involvement, the perceptional gap has been revealed regarding the meaning and expected types of parental involvement between the two groups. Moreover, the school personnel were fully satisfied with their current provision of the parent involvement program without much consideration of the barriers or needs that the Korean American parents faced in their participation. Thus, the findings of this study suggest that it is critical for teachers and administrators to recognize the possible struggles and disadvantages that Korean American parents and other minority parents might experience in their schools and make conscious efforts to respond to the needs of minority parents.

부모-교사 간 협력적 관계형성을 위한 새로운 시도: 예비유아교육에서의 부모와의 실제경험

방유선(Bang Yoo-Seon),권귀염(Kwon Kyee Yum) 학습자중심교과교육학회 2019 학습자중심교과교육연구 Vol.19 No.15

본 연구는 가정방문으로 유아들을 가르치며 부모들과 상호작용하는 프로그램에 참여한 6명의 예비유아교사들의 경험을 통해, 예비교사교육에서 부모와의 사전경험이 교사가 된 후 부모와의 실제 협력에 어떤 가능성과 한계를 제공하는지 살펴보고자 하였다. 이를 위해 프로그램 참여 전과 참여기간, 그리고 졸업 후 교사를 하는 기간 중에 총 5차례의 개별면담과 1차례의 포커스그룹 면담, 그리고 참여자의 반성적 저널과 관련 문서수집이 이루어졌다. 그 결과, 부모와의 사전경험은 예비유아교사들이: 1)부모와의 관계에 대한 막연한 두려움을 극복하고 부모와의 관계에서 회피보다는 시도를 할 수 있게 도와주었고; 2)부모의 행동과 요구에 대한 비판보다는 다름을 인정하고 공감하려는 성향을 길러주었으며; 3)부모-교사관계의 어려움을 깨닫고 시행착오를 통해 현장에서 필요한 실천방법들을 찾아갈 수 있는 기초를 마련해주었다. 반면, 예비교사들이 기존에 가지고 있던 부모와의 협력에 대한 제한된 관점을 전환하는 데는 한계가 있었다. 또한 실습경험이 단절되어 이루어지거나, 실습과정에서 사전교육이 병행되지 않거나, 대학의 교육과정과 연계되지 않는 운영 등으로 인해 부모와 관련하여 단편적인 경험이 이루어질 수밖에 없는 한계가 있음을 알 수 있었다. 이러한 결과를 바탕으로, 현장에서 부모-교사 협력이 실천되기 위해 예비교사교육에서 이루어져야 할 변화에 대해 논의하였다. This study examined the experiences of early childhood student teachers that participated in a practical program with families. A case study of six student teachers was discussed to illustrate the potential of such an approach to this aspect of teacher preparation. The results showed that the field experience: 1)helped the student teachers overcome their fear of child’s parents and build positive relationships with the parents as teachers; 2)allowed them to develop their attitudes to understand and sympathize rather than criticize children’s parents’ behaviors; and 3)helped them realize the difficulties in parent-teacher relationships and establish effective partnerships with parents in their future professional role. On the other hand, the practical experience had its own limitation in changing the pre-established, limited perspectives of student teachers regarding parent-teacher collaborations. Moreover, the student teachers could only have limited and fragmentary experiences with families in the program. Based on the results, suggestions and improvements for the re-establishment of the teacher preparation program in preparing teachers to work collaboratively with families in children’s education was discussed.

미국내 한인 유아교육기관을 통해 알아본 부모참여의 의미와 방향

방유선 ( Yoo Seon Bang ) 미래유아교육학회 2009 미래유아교육학회지 Vol.16 No.2

영유아교육기관에서의 부모-교사 협력적 관계형성 과정 탐색:

방유선(Bang, Yoo-seon) 학습자중심교과교육학회 2017 학습자중심교과교육연구 Vol.17 No.21

Through observations and individual interviews, this study examined how parents and teachers establish their relationships in early childhood educational settings. The findings showed that the parents and teachers: 1)constantly made an effort to establish trust in their own way, but due to the different ideas and expectations on how to build trust, they experienced difficulties such as the rising tensions between the two parties; 2)experienced limited opportunities for mutual and meaningful communication and interaction; and were confused due to 3)the gap between theory and reality and 4)the complexity and uniqueness of the parent-teacher relationship. Particularly, the lack of mutual understanding, the insufficiency in field experience and preparation, and the persistent cautiousness often resulted in intensified conflicts and distrust between the parents and the teachers. Therefore, we should not simply ask the parents and the teachers to fulfill all responsibilities and ask them for cooperative relationships. More fundamental and structural changes and efforts should be made for improvements in this area. 본 연구는 총 4개월간의 현장관찰과 참여자 심층면담을 통해 영유아교육기관에서 부모와 교사가 어떻게 관계를 형성하고 그 과정에서 어떤 어려움을 왜 경험하게 되는지 부모와 교사 모두의 관점에서 살펴보았다. 그 결과, 부모와 교사들은: 1)협력을 위한 신뢰를 쌓기 위해 노력하고는 있으나, 어떤 노력이 필요한지에 대한 이견과 서로 다른 기대로 인해 오히려 신뢰를 잃게 되거나 갈등이 고조되는 등 어려움을 겪고있었고; 2)서로 터놓고 의논하는 양방향의 진정성 있는 소통과 참여에 한계가 있었 으며; 3)이론과 현실의 간극 그리고; 4)부모-교사관계의 독특하고 복잡한 특성으로 인해 많은 어려움과 혼란을 경험하고 있다는 것을 알 수 있었다. 또한 서로 간의 이해부족, 경험과 준비부족, 해소되기 어려운 끊임없는 걱정과 피해의식, 그리고 표현 능력부족 등이 이러한 어려움을 야기하고 증폭시키는 원인으로 드러났다. 이러한 연구결과를 바탕으로, 부모와 교사의 관계가 단순한 정보제공과 참석의 차원을 넘어 실질적인 협력의 관계로 나아가기 위해 이루어져야 할 변화와 노력을 크게 네 가지 차원에서 논의하였다.

유아교사가 인식하는 상호작용의 의미탐색

방유선(Bang, Yoo-Seon) 경성대학교 인문과학연구소 2014 인문학논총 Vol.34 No.-

본 연구는 유아교사들이 교실 내 상호작용에 대해 어떤 인식을 가지고 있는지 사회문화적 관점에서 살펴보고자 하였다. 이를 위해 2012년 9월부터 2013년 6월까지 9개월에 걸쳐 총 5명의 유치원 혹은 어린이집 교사들을 대상으로 2-3차례에 걸친 개별면담을 실시하였다. 연구 결과, 참여교사들은 상호작용의 목적이: 1)유아들에게 필요한 교육내용을 효과적으로 제시하고, 2)유아들에 대해 잘 알기 위한 것이라고 여기고 있었으며; 상호작용의 형식으로는 1)교사와 유아가 서로 얘기를 주고받는 식으로 하고, 2)유아들의 경험을 고루 들어주는 것이 중요하며, 3)교사가 계획한대로 이루어지는 것이 잘된 상호작용이라고 믿고 있었다. 또한 1)유아가 자신이 궁금해 하는 것을 직접 체험해 보고, 2)확산적 질문을 잘 활용하는 것이 상호작용의 핵심 기술 및 전략이라고 인식하고 있었다. 이러한 결과를 사회문화적 관점에서 분석하고 논의한 후, 교사교육과 교육현장을 위한 제언을 하였다. This study aims to explore early childhood teachers" perceptions of interactions from the sociocultural perspective. From September 2012 to June 2013, five early childhood teachers were individually interviewed twice or three times each. The results show that the teachers consider the purpose of interaction in early childhood education is: 1) to effectively present the educational content knowledge to their children; 2) to know better their children. The teachers also believe that interaction should take the forms of: 1)taking turns in dialogue; 2) listening to every child"s experiences; 3) interacting with their children as planned. In addition, they perceive that for successful interaction, it is important to use such strategies as providing children with experiential opportunities and asking open questions. The results suggest that classroom interaction should be viewed as an opportunity to co-construct new knowledge and transform one"s own understanding.

Effect of the Dietary Supplementation of Cassava by-product on Meat Quality in Pork

Yoo Kyung Seon,Ye Seul Seo,Mi Ae Bang 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10

This experiment was conducted to investigate the dietary effects of Cassava by-product (CBP) on meat quality in pork. Growing swine were randomly divided into 3 groups (T0: Commercial diet feed; T3: Commercial diet+ 3% CBP; T6: Commercial diet+ 6% CBP). The meat quality of pork loin were evaluated by proximate composition, pH, drip loss, cooking loss, textural properties and sensory evaluation. The proximate composition, pH and drip loss were not significantly different among the control and treatment group. The cooking loss revealed significantly lower in T6 group than in others (P<0.05). In case of textural properties of boiled pork, shear force, springiness, cohesiveness, gumminess and brittleness were not significantly different among the control and treatment group, whereas hardness was significantly lower in T6 group (P<0.05). In sensory evaluation, the flavor, off-flavor, off-oder, tenderness, juiciness and overall acceptability of boiled pork revealed significantly higher in T6 group than in others (P<0.05). As a result, dietary supplementation of CBP could be recommended for the production of high quality meat.

Fingerprinting Differentiation of Astragalus membranaceus Roots According to Ages Using 1H-NMR Spectroscopy and Multivariate Statistical Analysis

( Yoo Soo Shin ),( Kyong Hwan Bang ),( Dong Su In ),( Jung Sook Sung ),( Seon Young Kim ),( Bon Cho Ku ),( Suk Weon Kim ),( Dong Ho Lee ),( Hyung Kyoon Choi ) 한국응용약물학회 2009 Biomolecules & Therapeutics(구 응용약물학회지) Vol.17 No.2