Identification of quantitative trait loci for fusarium wilt resistance in radish (Raphanus sativus)

Juyeon Jung,Jaehwang Ryu,Yeonok Choi,Young-Pyo Lee 한국육종학회 2015 한국육종학회 심포지엄 Vol.2015 No.07

Radish, Raphanus sativus(2n = 18), belonging to the brassicaceae family, is herbaceous plant with 1-2 years life cycle. It is cultivated worldwide for producing leafy and root vegetables. Although an economically important crop, the genetics of yield and quality traits, disease resistance are not well-studies. The major purpose of this project is development of molecular breeding technology in radish. In this project, quantitative trait loci (QTL) for Fusarium wilt resistance of radish were analyzed. To identify QTL, genetic linkage map of radish was constructed using F2 mapping population derived from a cross between two inbred lines, “DB01” (resistant) and “DB05” (susceptible). A total 319 markers have been mapped into nine linkage groups, covering 639.3cM with an average distance of 2cM between loci. QTL mapping detected 2 loci conferring Fusarium wilt resistance. Two QTLs were located on LG3 and LG7, respectively. The QTL of LG3, flanked by EAGGMCT6 and WALK500 marker, exhibited a LOD value ranging from 2.3 to 8.7, and the R2 (Phenotypic variations) ranging from 28 to 48% in four tests. This QTL was named qYR1. The QTL of LG7, flanked by EACCMCAC-202 and DCJ14-390 marker, exhibited a LOD value ranging from 6.2 to 10.6, and the R2 ranging from 42 to 55% in four tests. This QTL was named qYR2. The results of the QTL analysis may be useful in marker-assisted selection (MAS) of Fusarium wilt resistant radish cultivars.

Status of selected feline infectious diseases in Gwangju, Korea

Juyeon Choi,Kyu-Sung Ahn,안아진,SungShik Shin 대한수의학회 2023 大韓獸醫學會誌 Vol.63 No.4

From 2008 to 2017, blood samples from 280 and fecal samples from 149 stray cats in Gwangju, South Korea, were examined for feline immunodeficiency virus (FIV), feline leukemia virus (FeLV), Dirofilaria immitis, and Giardia infections using commercial diagnostic tests. Overall, the combined prevalence of FeLV, FIV, D. immitis, and Giardia was 8.6%, 1.4%, 0.4%, and 2.0%, respectively. FeLV exhibited the highest prevalence rate among the 4 pathogens surveyed, both in the 2008–2009 (9.6%) and 2015–2017 (6.3%) surveys. The results of the feline Giardia study represent the first prevalence report of Giardia infection among stray cats in Korea.

Multifunctional Self-Doped Nanocrystal Thin-Film Transistor Sensors

Choi, Dongsun,Park, Mihyeon,Jeong, Juyeon,Shin, Hang-Beum,Choi, Yun Chang,Jeong, Kwang Seob American Chemical Society 2019 ACS APPLIED MATERIALS & INTERFACES Vol.11 No.7

<P>Self-doping in nanocrystals allows accessing higher quantum states. The electrons occupying the lowest energy state of the conduction band form a metastable state that is very sensitive to the electrostatic potential of the surface. Here, we demonstrate that the high charge sensitivity of the self-doped HgSe colloidal quantum dot solid can be used for sensing three different targets with different phases through self-doped HgSe nanocrystal/ZnO thin-film transistors: the environmental gases (CO<SUB>2</SUB> gas, NO gas, and H<SUB>2</SUB>S gas); mid-IR photon; and biothiol (<SMALL>L</SMALL>-cysteine) molecules. The self-doped quantum dot solid detects the targets through different mechanisms. The physisorption of the CO<SUB>2</SUB> gas and the NO gas molecules, and the mid-IR photodetection show reversible processes, whereas the chemisorption of <SMALL>L</SMALL>-cysteine biothiol and H<SUB>2</SUB>S gas molecules shows irreversible processes. Considering the quenching of mid-IR intraband photoluminescence of the HgSe colloidal quantum dot solid by the vibrational mode of the CO<SUB>2</SUB> gas molecule, sensing the CO<SUB>2</SUB> gas could be involved in the electronic-to-vibrational energy transfer. The target molecules are quantitatively analyzed, and the limits of detection for CO<SUB>2</SUB> and <SMALL>L</SMALL>-cysteine are 250 ppm and 10 nM, respectively, which are comparable to the performance of commercial detectors.</P> [FIG OMISSION]</BR>

A Novel Flexible Polyimide Neural Probe for Measuring Neuronal Activity and Distinguishing Cell Cluster in the Mouse Brain

Juyeon HAN,Jungsik CHOI,Hyeonyeong JEONG,Eunji CHEONG,Jaesuk SUNG,Heon-Jin CHOI 한국생물공학회 2023 한국생물공학회 학술대회 Vol.2023 No.10

Impact of COVID-19 Pandemic on Surgical Treatment Patterns of Colorectal Cancer in a Tertiary Medical Facility in Korea

Juyeon Choi(최주연),In Ja Park 대한외과학회 2021 대한외과학회 학술대회 초록집 Vol.2021 No.5

도보여행 안전정보의 유형별 중요도 및 우선순위 도출: 오픈데이터 활용을 중심으로

함주연 ( Juyeon Ham ),최수정 ( Sujeong Choi ),구철모 ( Chulmo Koo ) 한국지식경영학회 2018 지식경영연구 Vol.19 No.1

The tourism industry is now changing to smart tourism, which maximizes tourists’ overall tourism experience with the use of advanced mobile technologies and emphasizes the utilization of tourism information. Despite the quantitative expansion of the tourism industry, there is a lack of academic and practical discussion on tourism safety. Especially, in the context of walking tourism, tourists are more likely to be exposed to natural or social disasters and emergencies. Therefore, it is necessary to build a system that can provide walking tourists with safety information not only on dangerous factors which are anticipated to be confronted during a walking trip in advance but also on specific dangers in real time. Under the circumstances, this study seeks to identify the types of tourism safety information that can be offered by using publicly available open data, drawing on the safety information framework on the walking tourism that is presented in Choi et al. (2017)’s study. More specifically, this study focuses on the use of open data which is provided by the Korean government. Furthermore, this study verifies the types of safety information that are most urgently needed in walking travel situations. Specifically, this study aims to derive the importance and priority of each type of safety information for a walking trip by applying the analytic hierarchy process (AHP) analysis. For this, we collected 35 questionnaires from walking tour operators (practitioners) and walking tourists. The main results are as follows. First, natural disaster information is the most important factor in the top-level factor of safety information for walking tourists, followed by social disaster, life safety, and exhibition (security crisis) information. Second, information on natural disasters, environmental pollution, and weather is considered to be important at the sub-level factor. Lastly, the noteworthy result of this study is that the importance of each type of safety information varies depending on the walking tour operators (practitioners) and the walking tourists. That is, there is a recognition difference between the operator (practitioner) and the user in the importance and priority of the safety information of the walking trip. Therefore, it is necessary to develop policies and services reflecting the opinions of potential users when providing safety information so that the most importantly recognized information can be provided first.

배리어프리(Barrier-Free) 영화 활성화 방안

최영환(Choi, Youngwhan),신주연(Shin, Juyeon),염은유(Yeom, Eunryu),오강국(Oh, Ganggook),오세은(Oh, Seeun),윤혜정(Youn, Hyejeong),정현지(Jeong, Hyunjee),최윤경(Choi, Younkyoung),한지나(Han, Jina),홍소망(Hong, Somang),조성희(Cho, Sunghu 한국상담복지경영학회 2019 상담복지경영연구 Vol.- No.3

본 연구는 장애인의 삶의 질과 밀접한 관련성을 가진 문화향유권을 증진하기 위한 방안을 살펴보기 위한 목적으로 수행되었다. 특히 다양한 문화활동 중 장애인들이 가장 많이 이용하고 있는 활동인 영화 관람에 초점을 맞추었다. 이를 위하여 국내외 배리어프리 영화의 실태와 제도를 살펴보았다. 또한 배리어프리 영화 상영 경험에 따른 배리어프리 영화에 대한 수용도와 장애인에 대한 인식 변화를 검증하였다. 추가적으로 관련 전문가들을 대상으로 인터뷰를 통해 배리어프리 영화의 실태와 활성화 방안을 모색하였다. 연구결과를 살펴보면, 국내의 배리어프리 영화는 2010년대 이후 발전해 오고 있으나, 여전히 장애인들의 문화 활동에 대한 욕구를 충족시키기에는 미흡한 수준이다. 특히 배리어프리 영화의 절대적인 양적 측면의 성장이 미흡한 상황이므로 이에 대한 대책이 필요하다. 국내 배리어프리 영화의 확대를 위한 방안 모색에 있어서 영국은 좋은 사례가 될 수 있으므로 이에 대한 추가적인 검토가 필요하다. 배리어프리 영화 경험에 따른 배리어프리 영화에 대한 수용도와 장애인에 대한 인식 변화를 살펴본 결과에서는 배리어프리 영화를 경험한 경우 배리어프리 영화에 대한 수용도가 증가하고, 장애인에 대한 인식 역시 개선되는 것으로 나타났다. 이러한 결과를 기반으로 하여 배리어프리 영화 경험 증대를 위한 기회 확대, 기업차원이 활성화 방안 추진, 제도의 개선을 제시하였다. The purpose of this study was to find measures to promote cultural rights that are closely related to the quality of life of people with disabilities. In particular, the focus was on movies, which are the most used films for people with disabilities in various cultural activities. We examined the actual conditions and systems of barrier-free films at home and abroad. Also, according to the barrier-free movie screening experience, we examined the change of acceptance of barrier-free movie and perception of disabled people. Additionally, interviews were conducted with relevant experts to find out the status of barrier-free films and how to activate them. Result shows that barrier-free films in Korea have evolved since the 2010s, but are still insufficient to meet the needs of disabled people for their cultural activities. In particular, since the absolute quantitative growth of barrier-free movies is not enough, measures need to be taken. The UK can be a good example of exploring ways to expand domestic barrier-free films, and additional consideration is needed. As a result of examining barrier-free film acceptance and recognition of disabled people according to barrier-free film experience, the barrier-free film experience showed that acceptance of barrier-free film increased and recognition of disabled people also improved. On the basis of results, this study suggested the expansion of opportunities to increase the barrier-free movie experience, the promotion of corporate-level activation, and the improvement of the system.

영유아 보육교사 중심의 시스템 디자인을 위한 탐색적 연구

최주연(Juyeon Choi),이주호(Juho Lee),유지민(Jimin Ryu),정경진(Kyungjin Chung),이지수(Jisoo Lee),강연아(Younah Kang) 한국HCI학회 2020 한국HCI학회 학술대회 Vol.2020 No.2

영유아 아동학대 문제가 지속해서 화두가 되면서 다양한 해결책과 관련 연구들이 활발히 진행되고 있다. 그러나 본 연구에서 진행한 인터뷰에 따르면 아동학대 문제를 해결하고자 하는 시도들은 특정 이해관계자의 니즈(Needs)로 편향되어 있으며 오히려 보육교사의 업무를 가중하는 문제를 낳고 있다. 또한, 보육교사의 업무 가중은 영유아 보육의 질에 부정적 영향을 준다. 이에 본 연구에서는 문헌분석과 관찰조사, 심층 인터뷰를 바탕으로 현재의 보육환경 및 문제점을 이해하고 영유아 보육교사 중심의 보육환경 개선을 위한 시스템 디자인 방향에 대해 논의하였다.

인공지능스피커의 공감각 큐레이션 서비스가 사용자의 감성과 만족도에 미치는 영향

최주연(Juyeon Choi),주다영(Da Young Ju) 한국HCI학회 2019 한국HCI학회 학술대회 Vol.2019 No.2

빅데이터 기술의 도약과 함께 감성 인식 및 큐레이션 서비스가 음악, 이미지, 텍스트 등으로 다각화 되고 있다. 감성의 주요 영역에 속하는 음악과 색채에 관한 연구 또한 증대되고 있으며, 이를 사용자 감성에 반영하고자 하는 노력들이 기술에 적용되고 있다. 이에 따라 본 논문에서는 색채와 음악의 공감각적 서비스 디자인을 통해 구현된 감성 큐레이션 서비스의 사용자 감성 효과 및 만족도를 측정하고자 하였다. 구체적으로는 sk 텔레콤의 인공지능 스피커 “누구 (nugu)”를 활용하여 각 감성어와 대응되는 색채, 음악을 각각 음성인식 스피커의 감성조명색채, 음성인식 스피커와 연동된 “멜론(Melon)”의 감성테마추천 연관어를 통하여 결합하였다. 즉, 특정 연상어로 선택된 감성 테마 곡과 그와 대응되는 색채 조명을 통해 음악 청취와 무드 조명을 공감각적으로 경험하는 실험을 진행하였고, 이를 통해 궁극적으로 음악의 테마 장르 추천 서비스가 색채와 함께 공감각적 효과로 작용할 수 있는지, 그 수단으로써 음성인식 스피커가 유의미한 효과를 줄 수 있는지를 확인하고자 하였다.

DQ마크 인증 SW 분야 개선방안 연구

최영길(Young-Gil Choi),임주연(Juyeon Lim),최종섭(Jongsup CHOI),임성신(Sungshin Lim),이창신(Chang shin Lee),송치훈(Chi Hoon Song) 한국정보과학회 2017 정보과학회지 Vol.35 No.12