The Introduction of Ministry of SMEs and Startup R&D Support Program - Health Functional Food Development Support Program

Sujin Yang 한국식품영양과학회 2022 한국식품영양과학회 학술대회발표집 Vol.2022 No.10

Do good return policies work across cultures? Effect of lenient return policies on online shopper perceptions in Eastern culture

Yang, SuJin,Choi, Yun Jung Korean Marketing Association 2013 ASIA MARKETING JOURNAL Vol.15 No.2

While good return policies are suggested as one of the critical services for e-commerce, ambivalence between the burden of the cost and shoppers' satisfaction may prevent e-tailers from increasing their level of leniency. Based on the S-O-R model, this study has attempted to develop a grounded theory to explain how lenient return policies shape online shoppers' perceptions and responses, with a focus on cultural influences in the relationship. In order to check the cultural effects of the lenient return policy, thirty two female and eleven male undergraduate students in South Korean shoppers, who are accustomed to strict return policies, participated in the semi-structured interview. A series of open-ended questions were designed to explore consumers' reactions toward four different levels of the lenient return policy: from the strict type in South Korea to the lenient type in the U.S. Using qualitative research methods, this research has defined three types of dimensions of lenient return policy: return possible period, complexity of progress, and other restrictions. While previous researchers did not pay much attention, the last dimension, other restrictions, is shown to be the most significant in influencing online shoppers' perceptions, especially in South Korea. Also, the impacts on online shoppers' perceptions from the three types of sub-dimensions of return policy were somewhat different. Whereas a longer return possible period was considered more favorable, a medium level of complexity and restrictions were considered more desirable. In summary, this result showed that shoppers in Eastern cultures, i.e. South Korean online shoppers, seem favorable to a medium level of lenient return policies, while allowing for taking precautions against possible fraudulent behaviors and setting other restrictions. Therefore, most of retailers in South Korea recommended that e-tailers who adopt the most lenient return policies raise the bar to guard ethical shoppers from fraudulent users. Next, lenient return policies can enhance ease of use, usefulness, affect, and trust while relieving perceived risk, which is connected to intention to purchase, satisfaction, and loyalty. Interestingly, lenient return policies are more likely to change the behavioral responses of online shoppers, such as return and purchase, rather than change their attitudes or beliefs such as image, satisfaction, and loyalty. This tendency can be seen more clearly in the direct influences of return policy on responses. The reaction to lenient return policy is mostly the intention to return or to purchase. This suggests that return policy serves the e-tailers as a powerful tool in increasing online shoppers' purchase intention at the moment of purchase. Therefore, e-tailers who plan to expand their market to eastern countries, including South Korea, have to build a shield of restrictions around their lenient return policy, rather than immediately applying their original liberalized return policy. Also, e-tailers in South Korea need to review their strict and undifferentiated return policies to deal with the unsatisfied reactions of online shoppers toward their normal return policies. Although the present study was confined to the return policies currently being practiced by popular e-tailers, it would be worthwhile to develop effective return policies separately for each country, especially South Korea, keeping the culture of the relevant country in mind.

Association Between Pathological Gambling and Depression in Korean Adults

Sujin Yang,Hong Hyeonmi,Jung Young-Eun,Kim Moon-Doo 대한우울조울병학회 2023 우울조울병 Vol.21 No.3

Background: Pathological gambling is associated with several adverse outcomes, including depression, suicide, divorce, loss of employment, and debt. However, studies on the prevalence of pathological gambling are limited in South Korea. We assessed the prevalence of pathological gambling and its related factors. Methods: Data were obtained from 500 community-dwelling adults aged 20–59 years living in Jeju, Korea. This study assessed pathological/problem gambling using the Korean version of the Diagnostic Interview Schedule. We used the Patient Health Questionnaire-9 to obtain information about depression. Results: Lifetime prevalence rates of pathological gambling and problem gambling were 1.2% and 7.2%, respectively. The association between pathological/problem gambling and depression was highly significant (p<0.001). Multivariate analysis revealed significant relationships between men gender (odds ratio [OR], 2.62; 95% confidence interval [CI], 1.18–5.84; p=0.018) and depression (OR, 2.84; 95% CI, 1.42–5.68; p<0.001) and pathological/problem gambling. Conclusion: Pathological/problem gambling is highly associated with depression, indicating that clinicians should carefully evaluate and treat depression among gamblers.

근대5종 선수들의 자기종목에 대한 인식 연구

양수진 ( Sujin Yang ),심민경 ( Minkyung Shim ),김한별 ( Hanbyul Kim ) 한국스포츠심리학회 2021 한국스포츠심리학회지 Vol.32 No.3

목적: 본 연구는 근대5종 선수들의 종목에 대한 인식을 알아보는 데 그 목적이 있다. 방법: 연구자는 근대5종 선수 8명을 연구참여자로 섭외하여 인터뷰를 진행하였으며, 풍부한 자료수집을 위해 연구참여자를 A그룹(대학선수)과 B그룹(국가대표)으로 나누어 초점집단 면담을 진행하였다. 인터뷰는 그룹당 1회기씩 실시하였고, A그룹은 80분, B그룹은 100분이 소요되었다. 면담 내용은 휴대 전자기기에 내장된 녹음기를 이용하여 녹취한 뒤 전사하였다. 수집된 인터뷰 원자료를 질적연구 방법인 주제분석 기법을 활용하여 분석하였다. 결과: 연구 자료를 분석한 결과는 5개의 주제와 11개의 요소로 도출되었다. 본 연구의 결과를 종합하면 다음과 같다. 주제로는 타인의 혹평, 근대5종에 대한 불만, 근대5종의 매력, 근대5종과 삶, 타인의 호평으로 나타났다. 이에 따른 요소로 낮은 인지도, 주변의 무시, 긴 경기 시간, 폭 좁은 진로, 한정된 시설, 부족한 홍보, 성취감, 만족감, 삶의 일부, 긍정적인 평가, 주변의 격려가 도출되었다. 결론: 본 연구의 결과를 활용하여 근대5종의 발전을 도모하기 위해서는 근대5종에 대한 적극적인 홍보를 비롯해 인프라 및 저변 확대, 선수들을 위한 진로 지원이 이루어져야 할 것이다. Purpose: The purpose of this study is to find out the awareness of modern pentathlon athletes. Methods: In order to achieve the purpose of the study, the researchers recruited eight modern pentathlon athletes who had been actively playing for at least six years and conducted interviews. Since athletes can recognize sports differently depending on their career and performance, divided them into groups A (college athletes) and B (national team) according to the research participants’ experience and conducted interview with focus groups. The interview took 80 minutes for Group A and 100 minutes for Group B. The interview was recorded using a portable electronic device. Results: The collected raw contents were analyzed using a qualitative research method, topic analysis technic, which resulted in five topics, and 11 elements. The results of this study are as follows. The topics were presented as the life and modern pentathlon, the charm of the modern pentathlon, and the dis-satisfaction with the modern pentathlon and the favorable reviews of others, the criticism of others. As a result, part of life, achievement, satisfaction, long game times, narrow paths, limited facilities, sufficient publicity, positive evaluation, and encouragement from people around them, low awareness, and neglect of the others were derived. Conclusion: In order to promote the development of modern pentathlon, active promotion of modern pentathlon, expansion of infrastructure and base and career support for athletes should be provided.

SORT와 DeepSORT의 혼합을 이용한 실시간 다중객체 추적

양수진(Sujin Yang),정인화(Inhwa Jung),강동화(Donghwa Kang),백형부(Hyeongboo Baek) 한국정보기술학회 2021 한국정보기술학회논문지 Vol.19 No.10

Deep Simple Online and Real-time Tracking(DeepSORT) is a multi-object tracking technology that improves the accuracy of SORT, and has the characteristic of using a feature map of Convolution Neural Network(CNN) when determining the relationship between objects between consecutive frames in SORT. This feature has the advantage of dramatically improving the accuracy, but has a disadvantage in that the frame per second(FPS) is lowered due to the large amount of additional computing operations required. Therefore, for real-time systems such as autonomous vehicles, SORT has been considered more suitable than deep SORT. In this paper, we propose a method of mixing SORT technology with DeepSORT to remove the shortcomings of the existing DeepSORT. As a result of the experiment targeting MOT-16, a widely used data set used for multi-object tracking performance, it was confirmed that the proposed method dramatically increased the FPS with little loss in accuracy.

개발자 특성 기반 메트릭 수집과 활용

양수진(Sujin Yang),남재창(Jaechang Nam) 한국정보과학회 2022 한국정보과학회 학술발표논문집 Vol.2022 No.06

Expression of Tight Junction Molecule In The Human Serum-Induced Aggregation of Human Abdominal Adipose-Derived Stem Cells In Vitro

A Young Yoon,Sujin Yun,HyeJin Yang,Yoon Hwa Lim,Haekwon Kim 한국발생생물학회 2014 발생과 생식 Vol.18 No.4

Previously we have shown that human abdominal adipose derived-stem cells (ADSCs) could aggregate during the high-density culture in the presence of human serum (HS). In the present study, we observed that human cord blood serum (CBS) and follicular fluid (HFF) also induced aggregation. Similarly, porcine serum could induce aggregation whereas bovine and sheep sera induced little aggregation. qRT-PCR analyses demonstrated that, compared to FBS-cultured ADSCs, HScultured cells exhibited higher level of mRNA expression of CLDN3, -6, -7, -15, and -16 genes among the tight junction proteins. ADSCs examined at the time of aggregation by culture with HS, BSA, HFF, CBS, or porcine serum showed significantly higher level of mRNA expression of JAM2 among JAM family members. In contrast, cells cultured in FBS, bovine serum or sheep serum, showed lower level of JAM2 expression. Immunocytochemical analyses demonstrated that the aggregates of HS-cultured cells (HS-Agg) showed intense staining against the anti-JAM2 antibody whereas neither nonaggregated cells (HS-Ex) nor FBS-cultured cells exhibited weak staining. Western blot results showed that HS-Agg expressed JAM2 protein more prominently than HS-Ex and FBS-cultured cells, both of latter reveled weaker intensity. These results suggest that the aggregation property of ADSCs during high-density culture would be dependent on the specific components of serum, and that JAM2 molecule could play a role in the animal sera-induced aggregation in vitro.

Successful treatment of early acute antibody-mediated rejection in an human leukocyte antigen-incompatible and ABO-incompatible living-donor kidney transplant patient

Sujin Gang,Ahram Han,Sang-il Min,Jongwon Ha,Jaeseok Yang 대한이식학회 2019 Korean Journal of Transplantation Vol.33 No.4

For successful human leukocyte antigen-incompatible (HLAi) or ABO-incompatible (ABOi) living-donor kidney transplantations (LDKTs), pretransplant desensitization is essential; however, early antibody-mediated rejection (ABMR) remains the most important complication after HLAi or ABOi transplantation. Here, we report a case of early acute ABMR in simultaneous HLAi and ABOi LDKT with preformed donor-specific antibody (DSA), despite desensitization. Dialysis-dependent, severe ABMR occurred with a rebound of pre-existing DSA and appearance of de novo DSA after initial normalization of renal function, 8 days postoperatively. However, a low anti-ABO antibody titer (1:8) was maintained after transplantation. Combination therapy of plasmapheresis, high-dose intravenous immunoglobulin, and bortezomib improved both ABMR and renal functions. Thus, an appropriate preventive and therapeutic management for early ABMR is important among high-risk LDKT patients. Furthermore, early AMBR can occur despite pretransplant desensitization as seen in this case, and close monitoring of the patient and prompt management are considered vital for better therapeutic outcomes.

Optimized protocols for protoplast isolation, transfection, and regeneration in the Solanum genus for the CRISPR/Cas-mediated transgene-free genome editing

Yang So Hee,Kim Suk Weon,Lee Sujin,Koo Yeonjong 한국응용생명화학회 2024 Applied Biological Chemistry (Appl Biol Chem) Vol.67 No.-

The Solanaceae family includes the largest flowering crops such as tomatoes, potatoes, and eggplants. Consumer demand has led to massive development of plants in the Solanum genus, and many different Solanum varieties are now available on the market. The recent advances in Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/CRISPR-associated protein 9 (Cas9)-based genome editing have allowed laboratories and smaller crop production companies to utilize the technology in various crops. The traditional transformation method in crops involves the use of Agrobacterium, which is considered the most efficient method for introducing exogenous genetic materials in target plants. The Agrobacterium-mediated transformation method has been also established in the Sola naceae family, enabling CRISPR/Cas-based genome editing in crops like tomatoes, potatoes, and eggplants. How ever, the Agrobacterium-mediated approach inevitably accompanies the insertion of exogenous DNA into the plant genome and often causes the formation of chimera that require further propagation steps. Alternatively, the CRISPR/ Cas components can be introduced into protoplasts in the form of DNA for transient expression or a mixture of pro tein and RNA to avoid genomic insertion of foreign materials. The protoplast transformation approach involves processes including protoplast preparation, transfection, and regeneration, which require a comprehensive under standing and greater technical mastery of the tissue culture phase. Here we highlight the current research advances in protoplast transformation and discuss how to optimize the procedures of protoplast isolation, transfection, and regeneration for efficient and reproducible CRISPR/Cas-based genome editing in the genus Solanum.

A 17-year Experience on Bilateral Ovarian Germ Cell Tumors in Pediatric Population and Its Clinical Implications

Sujin Gang,Hee-Beom Yang 대한외과학회 2021 대한외과학회 학술대회 초록집 Vol.2021 No.11