LC-MS/MS를 이용한 Benzoylurea계열 살충제 Novaluron의 아욱에 대한 생산단계 잔류허용기준 설정 연구

오아연 ( A-yeon Oh ),곽혜민 ( Hye-min Gwak ),반선우 ( Sun-woo Ban ),장희라 ( Hee-ra Chang ) 한국환경농학회 2021 한국환경농학회 학술대회집 Vol.2021 No.-

benzoylurea계열 살충제는 곤충 표피의 키틴생합성을 저해하는 키틴합성저해제로, 곤충의 생육과정에 영향을 나타내며 파밤나방 및 매미나방의 방제를 위해 많은 농산물에 사용되고 있으며, 대표적인 benzoylurea계열 살충제로는 novaluron이 사용되고 있다. novaluron의 대상 작물로는 아욱이 있지만 아욱은 잎이 넓고 크기 때문에 표면적에 잔류하는 농약이 많은 엽채류로 해당되어 부적합 사례가 발생하고 있다. 최근 아욱, 깻잎 등 엽채류에서 부적합 사례가 발생하여 폐기처분에 따른 생산자에게 경제적인 손실을 발생시킬 수 있다. 본 연구는 생산자의 경제적인 손실 및 소비자의 안전관리를 위하여, 부적합 발생가능성이 높은 아욱을 대상으로 잔류감소추이에 따른 생산단계 잔류허용기준 설정하고자 하였다. 시험포장 장소는 지리적인 차이를 확인하고자 위도 20km 차이나는 평택과 이천에서 수행하였으며, 희석배수 2,000배, 10% 함량의 액상수화제인 농약을 안전사용기준에 따라 조제 후 살포하였다. 2회 살포 후 0, 1, 3, 5, 7, 10, 14일에 시료를 채취하였으며, 분석은 시료 10g에 acetone으로 추출 후 n-hexane을 사용하여 2회 분배를 하였다. 정제과정에서는 florisil cartridge 10g을 사용하였고 이 후 HPLC-MS/MS로 분석을 진행하였다. novaluron의 정량한계는 0.01mg/kg이었고, 회수율 시험은 정량한계 및 정량한계 10배 수준으로 진행하였다. 회수율시험 결과는 92.5±8.3% 및 88.6±9.1%으로 분석법 허용기준인 회수율 70∼110%, 변이계수 20%이내로 적합하였다. 평택 포장에서의 잔류량은 14day에서 1.91 mg/kg, 0day에서 13.81 mg/kg이었고, 이천 포장에서의 잔류량은 14day에서 1.00 mg/kg, 0day에서 13.45 mg/kg로 나타났다. 반감기는 평택 4.9일, 이천 4.2일 이었다. 모든 시험포장에서 0일차부터 잔류허용기준인 15 mg/kg이하로 검출되었다. 본 연구의 결과를 바탕으로 신뢰성 있는 농산물 유통 안전관리체계를 마련하고자 한다.

국외 요양시설 디자인가이드라인에 나타난 치유성능 연구

오아연(Oh, Ahyeon),장미선(Jang, Miseon),이연숙(Lee, Yeunsook) 한국실내디자인학회 2017 한국실내디자인학회논문집 Vol.26 No.1

Although nursing homes where physically weak seniors live must be planned as an healing environment for maintaining and improving holistic health conditions of the senior residents, many of the nursing homes in Korea are currently placed in poor environment due to lack of minimum criteria or design guideline for spatial planning. Therefore, this study aims to extract healing elements shown in nursing home design guidelines that have been developed and utilized in several developed welfare countries where aging has started before Korea. The subjects of this study were 4 international nursing homes design guidelines; and they were analyzed by the content analysis technique. As for analysis units, design guideline items were selected; and spatial composition, three dimensions of health, and healing elements for supporting the health conditions were used as analysis categories. As results, firstly, among total 259 guidelines, the guidelines that commonly applied to all the spaces turned out to be the most, then the guidelines to be applied in bathroom turned out to be the most. Secondly, in terms of holistic health, the proportion of design guideline for supporting physical health turned out to be highest followed by the one for mental health and social health. Thirdly, In terms of healing elements, items for safety, accessibility, comfort, and convenience that supported physical health and cognition that supported mental health turned out to be high. This study is expected to provide the framework for comprehensively understanding the existing design guidelines of nursing homes in the perspective of healing and to be utilized as fundamental resource for spatial planning to improve healing effects in the nursing homes in the future.

HPLC를 이용한 살충제 Lufenuron의 참나물에 대한 생산단계 잔류허용기준 설정 연구

오아연(A-Yeon Oh),오준경(Joon-Kyeoung Oh),장희라(Hee-Ra Chang) 한국농약과학회 2022 한국농약과학회 학술발표대회 논문집 Vol.2022 No.4

시설재배 쑥갓에 대한 Diethofencarb의 생산단계 잔류허용기준 설정 연구

오아연(A-Yeon Oh),곽혜민(Hye-Min Gwak),반선우(Sun-woo Ban),장희라(Hee-Ra Chang) 한국농약과학회 2021 한국농약과학회 학술발표대회 논문집 Vol.2021 No.5

취약계층 지원주택 계획을 위한 주민참여디자인워크샵 의의

오아연(Oh, Ah-Yeon),이연숙(Lee, Yeun-Sook),김윤수(Kim, Yun-Su),박지선(Park, Ji-Seon) 한국실내디자인학회 2016 한국실내디자인학회 학술대회논문집 Vol.2016 No.05

In case of Korea where numerous houses have been supplied in short time due to rapid industrialization of its societies, as it had no time to have various considerations in proportion tosuch rapid speed, stereotype houses have been supplied massively. However, now it is time to supply qualitative housing after the long period of quantitative housing supplies. Furthermore, Korea confronts an era that it should seriously consider how quality of life can be improved through paradigm change. What is more, in case of its socially disadvantaged people, their opinions have not been reflected owing to top down housing supply method, thus causing diverse problems. It is necessary the dwelling should reflect the needs of prospect in gusers through their participation. The purpose of this study was to share the process of developing the public rental housing for the low income families with the participation of residents in the local community. The house was not conventional collective housing but supportive housing, thus needs the resident’s participation more necessarily. As method of study, user participated workshops were used. Houses developed through this process prevented and resolved the possible doubts and conflictions among the stakeholders. It is expected that the results of this study will contribute a lot to change the direction of housing supplies through housing development process that prevents the conflicts prior to construction and promotes there liability and trust transparent communication and two-way design process reflecting the residents’ opinions.

우수 지원주택 사례를 통해 본 취약계층 주거공간의 적정 규모

오아연(Oh, Ah-Yeon),장미선(Jang, Mi-Seon),이연숙(Lee, Yeun-Sook) 한국주거학회 2016 한국주거학회 학술대회논문집 Vol.28 No.2

생산단계 쑥갓에 대한 Lufenuron의 소비단계 세척에 의한 제거 및 생식섭취에 따른 위해성평가

오아연 ( A-yeon Oh ),반선우 ( Sun-woo Ban ),곽혜민 ( Hye-min Gwak ),장희라 ( Hee-ra Chang ) 한국환경농학회 2023 한국환경농학회 학술대회집 Vol.2023 No.0

농산물에 잔류하는 농약은 소비단계에서 데치기, 가열 등의 조리과정을 통하여 제거할 수 있으나, 세척 후 생식으로 섭취하게 되면 잔류농약의 제거율이 상대적으로 낮다. 농약 안전관리 체계에서 엽채류에 대한 잔류농약허용기준이 초과하여 부적합이 지속적으로 발생함에 따라 소비자의 불안감이 높아져서, 잔류농약 제거하기 위하여 가정에서 다양한 세척방법을 사용하고 있다. 따라서, 생식 채소류의 생산단계부터 소비단계까지의 잔류농약의 노출량에 근거한 위해성 평가를 통하여 소비자의 안전관리가 중요하다. 본 연구는 잔류농약 부적합빈도가 높은 엽채류 중 쑥갓에 대한 Lufenuron에 대해 실제 생산단계를 반영한 시료를 수확하여 세척한 후 잔류량의 위해성 평가를 실시하고자 한다. 국내 쑥갓에 등록된 lufenuron critical GAP로 lufenuron(5%, 유제)을 안전사용기준에 따라서 조제 및 살포 후, 3일차, 14일차에 채취하였다. 세척방법에 따른 농약잔류량 확인은 최종 약제 살포후 3일차에 채취한 시료를 5가지 세척방법(과일채소용 세척제, 칼슘파우더, 물, 베이킹소다, 식초)으로 수행하였다. Lufenuron의 분석법 정량한계(LOQ, Limit of Quantitation)는 0.02 mg/kg로 HPLC-DAD를 이용하여 정량분석을 수행하였다. 회수율은 정량한계(LOQ) 및 정량한계의 10배(10LOQ) 수준에서 각각 83.9±6.1% 및 76.5±2.9%으로 식약처의 분석법 허용기준에 적합하였다. 최종 약제살포 후 3일차의 쑥갓 중 lufenurone의 잔류량 및 세척 후 잔류량은 3.25~4.70 mg/kg, 1.55~3.17 mg/kg이었으며, 평균 잔류농약 제거율(%)은 59.84~31.69%였다. 세척방법에 따른 잔류농약 제거율은 SPSS(Statistical Package for the Social Science)의 일원분산분석(one-way Analysis of variation, ANOVA)을 수행하여 유의적인 차이를 확인하였으며, 과일채소용세척제>칼슘파우더=식초=물=베이킹파우더(p<0.05)였다. 생식섭취에 따른 lufenuron의 노출평가는 안전사용기준인 14일차 평균 잔류량(1.48 mg/kg)에 세척방법별 제거율을 적용하여 산출된 잔류량으로부터 쑥갓의 연령별 섭취량 적용하였고, lufenuron의 일일섭취허용량과 비교하여 위해성 평가를 수행하였다. 본 연구는 농산물의 잔류농약에 대한 안전성 관리를 위한 기초자료로 활용할 수 있다.

지원주택 사례에 나타난 치유디자인특성 분석

오아연(Oh, Ah-Yeon),이연숙(Lee, Yeun-Sook),장미선(Jang, Mi-Seon) 한국실내디자인학회 2016 한국실내디자인학회 학술대회논문집 Vol.2016 No.10

People in the vulnerable social class is exposed to harmful environments to their health so that their physical and psychological health may deteriorate easily and their quality of life may also deteriorate due to their financial difficulties and social alienation. Supportive housing needs to reflect the characteristics of healing residents through normal residential environments in comparison to other facilities or spaces. Therefore, the purpose of this study is to analyze the characteristics of healing design reflected in the cases of supportive housing. For such purpose, supportive housings among the winners of Top Ten Projects selected by the affiliated committee of the American Institute of Architects were selected primarily and 4 supportive housings targeting the elderly or the disabled that were expected to reflect the characteristics of healing design more were selected finally and the case analysis was carried out targeting the finally selected supportive housings. Unlike the precedent studies that discussed only healing characteristics in physical, psychological and social health aspects, the result of case analysis showed that the design characteristics related to economic health were reflected in the supportive housing cases in addition to 3 health characteristics discussed in the precedent studies. It is expected that the result of this study will be utilized as preliminary data for the establishment of environments for improving the healing performance of supportive housing through the analysis of characteristics of healing design reflected at the time of planning the supportive housing.

국가대표 선수 훈련원 마스터플랜 설계경기 조경계획

김아연,유선근,오형석,Kim Ah-Yeon,Yoo Seon-Keun,Oh Hyung-Seok 한국조경학회 2006 韓國造景學會誌 Vol.33 No.6

As the national interest in sports has been increased over time, sports facilities and sports complex are considered more than just physical environments for training athletes or watching games. Sports facilities now become symbolic spatial devices to represent the national and cultural pride of any countries. The existing national training camp located in Taenung, Seoul is gotting outdated and degraded. The polluted air in the city risks athletes' health condition. The government planned to construct the second training camp at Jincheon, Chungbuk at the area of $2,171,910m^2$. The Korea Sports Council called for proposals to envision the future training camp, and they held a design competition from August to November, 2005. The first phase was to present the masterplan for the entire site including training buildings, outdoor training facilities, dormitories, a visitor center, a research center, education and administration buildings. Considering the size of the site, the planning process required a strong relationship between landscape and architecture. This study tries to provide general explanations on the winning proposal focused on the landscape-related issues. It also attempts to have reference points for contemporary planning and design issues to situate the project in the stream of continuing design effort to avoid the dichotomy between nature and culture. The landscape proposal for the new national taming camp suggests four main strategies; 1) The camp has two intersecting and interweaving parks which represent the natural and urban order. 2) The entire site is organized and networked by the flow of landscape called landscape ribbon in terms of topography, vegetation, and water flow. 3) The landscape is choreographed through the time and process. 4) The ecological process and the digital contents are juxtaposed in the landscape. This winning proposal is the first step to portray the national vision for the sustainable environment coexisting with sports industry. Landscape in this proposal is an active agent to network various parts of the site which enables landscape to be infrastructure. Landscape design in this proposal should be considered open-ended strategies rather than determined concrete forms and its engaging further development will be tested in following Design-Build phase.

간호·간병통합서비스 병동 입원환자의 간호만족도에 영향을 미치는 요인

김아연 ( Ay-eon Kim ),김묘연 ( Myo-youn Kim ),오단비 ( Dan-bi Oh ),정상이 ( Sang-yi Jung ),이미준 ( Mi-joon Lee ) 한국병원경영학회 2020 병원경영학회지 Vol.25 No.1

Objectives: The purpose of this study is to evaluate the factors affecting patient satisfaction for the nursing service of comprehensive nursing care service unit in Tertiary hospital Methods: This study employed a descriptive survey to investigate the nursing satisfaction and the study data was collected from 74 patients among 83 patient who were admitted to the nursing care integration service ward of an tertiary hospital for 10 days from May 9, 2018 to May 19, 2018. Data was analyzed by descriptive statistics, t-test, ANOVA, and multiple linear regression using SPSS 21 program. Results: The average with nursing satisfaction was significantly different according to marriage type and KPCS level. It was found that physical factor and educational factor have statistically significant effect on nursing satisfaction. As physical care increase by one unit, patient satisfaction increase by 0.226(95% CI; 0.061-0.390) and also satisfaction increase by 0.443(95% CI; 0.070-0.816) as education care increase by one unit. Conclusions: As a result of study, it was found that it is necessary to provide patients with more careful nursing service in physical and educational perspective, in order to improve the service quality of comprehensive nursing care service unit.