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전유진,박영진,오재영,I.P. Shanura Fernando,K. K. Asanka Sanjeewa,강민철,Yong Ri Cui,이효근,고재영,이원우,WANGLEI 한국키틴키토산학회 2018 한국키틴키토산학회지 Vol.23 No.2
In the present study, Sargassum fulvellum was extracted by enzyme-assistant extraction and the proximate compositions of these extracts were determined. The extraction yields of enzyme-assistant extraction were improved 4.67 to 9.67% compared to water extraction. The free radical scavenging activity of these extracts was evaluated using Electron Spin Resonance (ESR) spectroscopy and the cytotoxicity of these extracts was evaluated by measuring the viability of Vero cells. The Alcalase extract (SFA-2), Celluclast extract (SFC), Kojizyme extract (SFK), and Neutrase extract (SFN) were shown stronger free radical scavenging activity and non-toxicity in Vero cells compared with other extracts. The protective effects of SFA-2, SFC, SFK, and SFN against AAPH-induced oxidative stress in Vero cells were evaluated. SFC showed the strongest protective effect that indicated in scavenging 35.33, 38.75, and 47.69% intracellular reactive oxygen species (ROS) and improving 5.89, 8.36, and 12.13% viability at the concentration of 25, 50, and 100 μg/mL in AAPH-induced Vero cells. Therefore, this study demonstrated that enzyme-assistant extraction is an effective extraction method to extract antioxidant from algae, and SFC possesses strong antioxidant activity may be used as an ideal ingredient in pharmaceutical and cosmeceutical industries.
정상 젊은 성인에서 도파민 DRD2/ANKK1 Taq 1a 유전자다형성에 따른 우측 미상핵 용적의 차이
전유진,최예라,김지현,정지영,김다정,유숙경,임주연,이정현,Jeon, Yu-Jin,Choi, Ye-Ra,Kim, Ji-Hyun H.,Jung, Ji-Young J.,Kim, Da-Jung J.,Yu, Suk-Gyeong,Im, Joo-Yeon Jamie,Lee, Jung-Hyun H. 대한생물정신의학회 2011 생물정신의학 Vol.18 No.4
Objectives The aim of this study was to assess variations in caudate volume according to dopamin receptor D2/ankyin repeat and kinase domain containing 1 (DRD2/ANKK1) Taq 1a polymorphisms in young healthy adults and to evaluate the relationship between caudate volumes and psychiatric symptoms as measured by the Brief Psychiatric Rating Scale. Methods Genetic information regarding DRD2/ANKK1 Taq 1a and T1-weighted brain magnetic resonance images were acquired from 30 young healthy adults. Automatic segmentation of caudate was performed using the FreeSurfer program. Results Individuals with A2 homozygotes of DRD2/ANKK1 Taq 1a polymorphisms (n = 10) had greater right caudate volumes compared to those with A1 allele (s)(18.4% greater ; p = 0.019). Right caudate volumes were negatively associated with total scores of the Brief Psychiatric Rating Scale (${\beta}$=-0.50 ; p = 0.016). Conclusions Our findings suggest the possibility that DRD2/ANKK1 Taq 1a polymorphisms may underlie the psychiatric symptoms by influencing the structure of the right caudate.
Characterization of Algarose Product from Agar Using DMSO
전유진,이제희,Yasantha Athukorala 한국조류학회I 2005 ALGAE Vol.20 No.1
Agar was extracted from Gelidium amansii, which was harvested at the shores of Jeju Island in South Korea. As a unique solvent, the ability of dimethyl sulfoxide (DMSO) was used to separate agarose from agar by removing agaropectine and quality of the resultant agarose was characterized for chromatography purposes. Agar sample was agitated by motor-driven stirrer with DMSO in a water bath (at 70°C for 2 h) and centrifuged (3,000 rpm for 20 min). Resultant upper agarose layer was gelled, washed, dried and milled. The quality of agarose was evaluated by the analysis of proximate chemical composition, sulfate content, gelling strength and DNA migration. In this study, the separated agarose showed low sulfate amount (0.28%) and showed high gel strength (1190 g · cm–2). The resolution power and the ligase activities gave clear picture about the suitability of the present agarose for practical purposes.
고주파 특성과 스마트폰을 활용한 화재 대피 안내시스템 개발
전유진,전연수,염춘호,Jeon, Yu-Jin,Jun, Yeon-Soo,Yeom, Chunho 한국정보통신학회 2020 한국정보통신학회논문지 Vol.24 No.10
화재 대피시스템에 관한 연구가 증가하고 있지만, 실내공간에서 대피자의 위치 인식에 관한 연구는 부족한 실정이다. 최신 연구에 따르면 실내에서 대피자 위치 파악에 고주파 활용이 효과적일 수 있음을 제시한 바가 있다. 이에 따라 본 논문에서는 고주파 특성과 스마트폰을 활용한 대피자 위치 인식 기술 및 화재 대피 안내시스템을 개발하고자 한다. 전체 시스템은 앱 서버, 위치 인식부, 대피경로 탐색 및 출력부, Wi-Fi통신 기반의 스피커 출력부를 포함해 개발했으며, 화재 상황 데이터를 기반으로 실험을 수행하여 시스템의 실효성에 대한 가능성을 입증하였다. 본 연구는 화재 시 고주파를 활용한 대피자 위치 감별을 사용하는 화재 대피 안내시스템의 기초연구로 활용될 수 있을 것이라 기대된다. Although studies on fire evacuation systems are increasing, studies on the evacuation of evacuees in indoor spaces are insufficient. According to the latest research, it has been suggested that the use of high frequency might be effective for identifying the location of evacuees indoors. Accordingly, in this paper, the authors intend to develop evacuation location recognition technology and fire evacuation guidance system using high-frequency and a smartphone. The entire system was developed, including an app server, evacuees location recognition unit, an evacuation route search, an output unit, and a speaker unit based on Wi-Fi communication. The experimental results proved the possibility of the effectiveness of the system in the fire situation data. It is expected that this study could be used as an essential study of a fire evacuation guidance system using high frequency data in case of fire.
유아교사 문해신념 질문지(The Preschool Teachers’ Literacy Beliefs Questionnaire)의 국내적용을 위한 타당화 연구
전유진,박찬화 한국열린유아교육학회 2022 한국열린유아교육학회 학술대회 논문집 Vol.2022 No.11
본 연구의 목적은 해외의 유아교사 문해신념 질문지가 국내 유아교사의 문해신념을 측정할 수 있는 타당한 검사도구인지 검증하여, 유아교사의 유아 문해발달에 대한 신념을 공신력있게 측정하는 도구로 활용하고 유아교사의 문해신념과 관련된 다양한 변인에 대한 연구를 활성화하는 데 있다. 연구대상은 전국에서 무선표집된 213명의 유아교사이며, 이들을 대상으로 설문조사를 실시하였고 수집된 자료는 SPSS 21.0 프로그램을 사용하여 분석하였다. 아동가족학과 교수 및 유아교육 전문가 5인의 내용타당도, 요인분석을 통한 구인타당도, 준거 도구와의 공인타당도, 하위 요인별 내적합치도 계수를 산출한 신뢰도를 검증한 결과, 유아교사 문해신념 질문지(TBQ)는 국내 유아교사의 문해신념을 측정할 수 있는 타당하고 신뢰도 있는 도구임이 검증되었다.
전유진,Jeon, You-Jin 대한물리치료과학회 2000 대한물리치료과학회지 Vol.7 No.2
The causes, risk factors and sequelae of mastectomy were studied, and the physical therapy approaches on post-mastectomy was discussed in this study. It was found that the patients taken mastectomy have experienced pins and needles in muscle, weakening of muscle, pains, deterioration of motion in joint region and activities of daily living, psychiatric sequelae, and etc even after the conservertive therapies like the chemical therapy, radiotherapy, immunotherapy, and hormone therapy. However, few study on the physical therapy approaches for patients with breast cancer has been carried in Korea at present. The followings were proposed as the physical therapy approaches. 1. Shoulder joint motion approach to relax the limit of range of motion 2. Control of breathing exercise for dealing with removal of the pectorailis muscle 3. Method to reduce the edema of arms for tackling the cut of lymph node 4. Method to reduce pains, pins and needles 5. Support home exercise program after discharging from hospital, sexual life and pregnancy, and activities of daily living training method.