서비스 이용자의 지각된 위험이 AI추천시스템 이용의도에 미치는 영향

서상윤 ( Seo¸ Sangyun ) 경희대학교 경영연구원 2021 의료경영학연구 Vol.15 No.4

This study examines the intention to use, and the willingness to pay for an AI treatment recommendation system according to the disease severity and risk attitude of medical service users. To test the effects of disease severity and risk attitude on the medical service users’ intention to use AI treatment recommendation system, we compared the users’ intention and willingness to pay for the treatment on the assumption that they had mild disease such as a cold or severe disease such as a cancer. We also measured their risk-taking attitudes and categorized them into high-and low-risk-taking groups. Based on the results, respondents had a higher intention to use and willingness to pay for the AI treatment recommendation system for severe diseases than for mild ones. Furthermore, respondents with high risk-taking attitudes were more willing to use the AI treatment recommendation system than those with low risk-taking attitudes. The risk-taking attitude moderated the effect of disease severity on the intention to use and willingness to pay, as in the case of severe disease , the respondents had a strong intention to use it regardless of their risk-taking attitude, while in the case of mild diseases, the intention differed between the low and the high risk-taking groups.

An aggravated return-to-work case of organic solvent induced chronic toxic encephalopathy

Sangyun Seo,Jungwon Kim 대한직업환경의학회 2018 대한직업환경의학회지 Vol.30 No.-

Background: Organic solvent-induced chronic toxic encephalopathy (CTE) is known as a non-progressive disorder that does not progress after diagnosis. The authors present a case those symptoms worsened after continued exposure to organic solvent after returning to work. Because such a case has not been reported in South Korea to the best of our knowledge, we intend to report this case along with literature review. Case presentation: A 59-year-old man, who performed painting job at a large shipyard for 20 years, was receiving hospital treatment mainly for depression. During the inpatient treatment, severe cognitive impairment was identified, and he visited the occupational and environmental medicine outpatient clinic for assessing work relatedness. In 1984, at the age of 27, he began performing touch-up and spray painting as a shipyard painter. Before that he had not been exposure to any neurotoxic substances. In 2001, at the age of 44, after 15 years of exposure to mixed solvents including toluene, xylene and others, he was diagnosed with CTE International Solvent Workshop (ISW) type 2A. After 7 years of sick leave, he returned to work in 2006. And he repeated return-to-work and sick leave in the same job due to worsening of depressive symptoms. He had worked four times (2006–2010, 2011–2011, 2011–2011, 2016–2017) for a total of 5 years as a shipyard painter after first compensation. During the return-to-work period, the mean values of the mixed solvent index ranged from 0.57 to 2.15, and except for a one semiannual period, all mean values were above the standard value of 1. We excluded other diseases that can cause cognitive impairment like central nervous system diseases, brain injury, psychological diseases and metabolic diseases with physical examinations, laboratory tests, and brain image analysis. And finally, throughout neuropsychological tests, an overall deterioration in cognitive function was identified compared to 2002, and the deterioration types was similar to that often shown in the case of CTE; thus a diagnosis of CTE (ISW) type 3 was made. Conclusion: This case is showing that CTE can go on with continued exposure to mixed solvents. Appropriate “fitness to work” should be taken to prevent disease deterioration especially for the sick leave workers.

외식 프랜차이즈 가맹본부의 관리 및 지원정책과 가맹점 사업자의 경영자적 특성이 양자간 관계와 가맹점의 만족에 미치는 영향에 관한 연구

서상윤(SangYun Seo),장재남(JaeNam Jang) 한국유통학회 2012 流通硏究 Vol.17 No.4

본 연구는 프랜차이즈 가맹본부와 가맹점간의 관계에 주안점을 두고, 가맹본부와 가맹점사업자의 특성이 신뢰와 몰입과 같은 양자간의 관계에 어떠한 영향을 미치는지 살펴보고 이러한 신뢰와 몰입이 재계약의도가 포함된 가맹점의 만족에 어떠한 영향을 미치는지 살펴보고자 하였다. 특히 현재와 같이 시장의 불확실성이 높은 상황에서 시장 불확실성 요인이 가맹본부 및 가맹점 사업자의 특성과 신뢰 및 몰입과의 관계에 어떠한 영향을 미칠 것인지에 대해서도 살펴보고자 하였다. 연구결과 가맹본부의 특성 가운데 가맹본부의 표준화관리는 가맹본부에 대한 가맹점의 신뢰와 몰입을 저해시키는 것으로 나타났고, 가맹본부의 지원은 가맹점의 신뢰와 몰입을 높이는 것으로 나타났다. 그러나 가맹본부의 가맹점에 대한 통제와 인센티브 정책은 가맹본부에 대한 가맹점의 신뢰 및 몰입에 영향을 미치지 못하는 것으로 나타났다. 가맹점사업자의 특성 가운데는 가맹점의 건전한 재무상태와 기업가 정신이 가맹본부에 대한 신뢰와 몰입을 높여주는 것으로 나타났다. 그러나 가맹점사업자의 우수한 사업능력은 오히려 가맹본부에 대한 몰입을 감소시키는 것으로 나타났다. 그리고 가맹본부에 대한 신뢰와 몰입은 가맹본부에 대한 만족을 높여주어 재계약의도를 높이는 것으로 나타났다. 추가적으로 시장 불확실성에 따라 가맹점사업자의 특성이 본부에 대한 신뢰와 몰입에 미치는 효과가 차이가 있을 것으로 생각하였으나, 불확실성의 인식정도에 따라 가맹점 사업자의 특성이 미치는 효과는 유의한 차이가 없는 것으로 나타났다. 이러한 연구결과는 가맹본부가 지속적으로 성장 발전하기 위해서 가맹점에게 시설투자나 마케팅 비용부담을 전가하여 가맹점으로부터 수익을 강제적으로 얻으려 하기 보다는 가맹점의 영업활동이 잘 될 수 있도록 가맹본부가 가맹점을 적극적으로 지원을 해줌으로써 가맹점의 수익이 가맹본부의 수익으로 연결될 수 있게 하는 것이 양자의 발전을 위해 더욱 바람직한 방향임을 보여주는 결과라 할 수 있을 것이다.

A 1.248–2.918 Gb/s low-power transmitter for MIPI M-PHY with 2-step impedance calibration loop in 0.11 μm CMOS

Kim, SangYun,Lee, Juri,Oh, SeongJin,Kim, InSeong,Park, Young-Jun,Tiwari, Honey Durga,Park, Hyung-Gu,Pu, YoungGun,Hwang, Keum Cheol,Yang, Youngoo,Seo, Munkyo,Lee, Kang-Yoon Springer-Verlag 2015 Analog Integrated Circuits and Signal Processing Vol.83 No.2

女貞子와 ?寄生이 난소적출로 유발된 흰쥐의 골다공증 치료효과에 미치는 영향

이상윤(Sangyun Lee),서부일(Buil Seo),박지하(Jiha Park),노성수(Seongsoo Roh),김대준(Daejun Kim) 한국한의학연구원 2011 한국한의학연구원논문집 Vol.17 No.1

Objectives : The present study had been undertaken to investigate the effects of Ligustri Lucidi Fructus Extract and Vici Herba Extract on treatment of osteoporosis in ovariectomized rats. Method : In this experiment, the rats were ovariectomized. Rats were individually administered by water extract from Ligustri Lucidi Fructus or Vici Herba(dose:1㎖/100g, 2times/day). The levels of bone mineral density, serum components, urinary components, bony components, body weight and uterus weight were measured. Results : The levels of spinal and femoral bone mineral density(BMD) were significantly increased in comparison with OVX group at 8 weeks after administration in Vici Herba group. The levels of serum osteocalcin showed significant decrease in comparison with OVX group at 4 weeks after administration in Ligustri Lucidi Fructus and Vici Herba group. The levels of serum ALP and phosphorus showed significant decrease in comparison with OVX group at 4, 8 weeks in after administration in Ligustri Lucidi Fructus and Vici Herba group. The levels of urinary deoxypyridinoline showed significant decrease in comparison with OVX group in Ligustri Lucidi Fructus group. The levels of fibula-tibial ash weight showed significant increase in comparison with OVX group after administration in Ligustri Lucidi Fructus group. The levels of body weight were significantly decreased in comparison with OVX group at 4 weeks after administration in Ligustri Lucidi Fructus group and at 4, 8 weeks after administration in Vici Herba group. The levels of uterus weight were not significantly increased in comparison with OVX group in Ligustri Lucidi Fructus and Vici Herba group. Conclusion : Reviewing these experimetal results, it appeared that Ligustri Lucidi Fructus and Vici Herba had efficacy on treatment of osteoporosis.

Review of carcinogenicity of hexavalent chrome and proposal of revising approval standards for an occupational cancers in Korea

Jungwon Kim,Sangyun Seo,Yangho Kim,Dae Hwan Kim 대한직업환경의학회 2018 대한직업환경의학회지 Vol.30 No.-

Background: The objective of this study is to suggest revised recognition standards for occupational disease due to chromium (VI) by reflecting recent domestic and international research works and considering domestic exposure status with respect to target organs, exposure period, and cumulative exposure dose in relation to the chromium (VI)-induced occupational disease compensation. Methods: In this study, the reports published by major international institutions such as World Health Organization (WHO) International Agency for Research on Cancer (IARC) (2012), Occupational Safety and Health Administration (OSHA) (2006), National Institute for Occupational Safety and Health (NIOSH) (2013), American Conference of Governmental Industrial Hygienists (ACGIH) (2004), National Toxicology Program (NTP) (2014), and Agency for Toxic Substances and Disease Registry (ASTDR) (2012) were reviewed and the recent research works searched by PubMed were summarized. Results: Considering the recent research works and the domestic situation, only lung cancer is conserved in the legislative bill in relation to chromium (VI), and the exposure period is not included in the bill. Nasal and paranasal sinus cancer was excluded from the list of cancers that are compensated as the chromium (VI)- induced occupational disease, while lung cancer remains in the list. In the view of legislative unity, considering the fact that only the cancers having sufficient evidence are included in the conventional list of cancers compensated as occupational disease, nasal and paranasal sinus cancer having limited evidence were excluded from the list. The exposure period was also removed from the legislative bill due to the insufficient evidence. Recent advices in connection with cumulative exposure dose were proposed, and other considerable points were provided with respect to individual occupational relevance. Conclusions: It is suggested that the current recognition standard which is “Lung cancer or nasal and paranasal sinus cancer caused by exposure to chromium (VI) or compounds thereof (exposure for two years or longer), or nickel compounds” should be changed to “Lung cancer caused by exposure to chromium (VI) or compounds thereof, and lung cancer or nasal and paranasal sinus cancer caused by exposure to nickel compounds”.

스티어링 휠 진동 개선을 위한 IP Structure 최적화 방법론 연구

서윤미(Yunmi Seo),배현우(Hyunwoo Bai),이상윤(Sangyun Lee),김용석(Yongsuk Kim) 한국자동차공학회 2016 한국자동차공학회 학술대회 및 전시회 Vol.2016 No.11

현재 자동차 업계에서는 감성품질이 중요시 됨에 따라 차량의 정숙성, 진동 등 고객들의 요구수준이 높아지고 있다. 특히 스티어링 휠은 운전자와 매우 밀접한 파트로, 스티어링 휠로 전달되는 진동은 감성품질을 떨어뜨리는 주요 원인이 된다. 본 논문에서는 스티어링 휠 진동량을 저감시킬 수 있는 IP Structure 최적설계 방법론을 제시했다. 먼저 효과적인 Loadpath를 찾고자 IP Structure와 바디의 연결 부위들을 설계공간으로 설정해 위상 최적화를 진행했으며, Cross Car Beam (CCB)의 섹션에 대해서 형상 최적화를 진행했다. 본 연구에서 제시한 방법으로 3기통 엔진의 스티어링 휠 A/T성능을 개선시키는 IP Structure 최적 설계안을 도출했으며, 스티어링 휠 진동이 개선됨을 검증했다.

사회복지조직의 참여적 의사결정이 직무성과에 미치는 영향 : 구성원 민첩성의 매개효과

서대석(Daeseok Seo),조상윤(Sangyun Cho) 한국콘텐츠학회 2021 한국콘텐츠학회논문지 Vol.21 No.4

본 연구의 목적은 환경변화에 능동적으로 대처했을 때 업무성과가 향상된다는 업무조정이론에 따라 사회복지조직이 코로나 사태와 같은 환경변화에 능동적으로 대처할 수 있는 방안을 찾기 위함이다. 즉, 참여적 의사결정이 직무성과에 영향을 미치는 관계에서 구성원 민첩성의 매개효과를 파악하였다. 조사대상은 수도권 및 충청지역 복지관 종사자이며 310부의 설문지를 분석하였고, 가설검증을 위해 확인적 요인분석, 연구모형분석, 매개효과검증을 실시했다. 연구결과, 참여적 의사결정은 구성원 민첩성과 직무성과에 유의미한 정적 영향을 미쳤다. 그리고 참여적 의사결정이 직무성과에 직접적으로 영향을 주는 경로와 구성원 민첩성에 먼저 영향을 준 후 다시 직무성과에 연결되는 간접효과를 포함시킨 부분매개 모형이 적합하다는 것을 확인했다. 본 연구는 사회복지조직에 필요한 참여적 의사결정과 민첩성의 효과를 검증했다는 점에서 학술적 의의가 있으며, 사회복지조직의 직원 채용, 평가, 교육에서 참여적 의사결정과 민첩성 향상 방안을 제시함으로써 실천적 측면에서도 의의를 찾을 수 있다. The purpose of this study is to find a way for social welfare organizations to actively cope with environmental changes such as the corona incident according to the work coordination theory that work performance improves when actively coping with environmental changes. In other words, the mediating effect of member agility in the relationship that participatory decision-making affects job performance was identified. The subjects of the survey were workers in welfare centers in the metropolitan area and Chungcheong area, and 310 questionnaires were analyzed, and confirmatory factor analysis, research model analysis, and mediation effect verification were conducted to verify the hypothesis. As a result of the study, participatory decision-making had a significant positive effect on member agility and job performance. In addition, it was confirmed that the partial mediation model including the path that participatory decision-making directly affects job performance and the indirect effect that is linked to job performance after first affecting the agility of members is appropriate. The study has academic significance in that it verifies the effect of participatory decision-making and agility necessary for social welfare organizations, and suggests ways to improve participatory decision-making and agility in hiring, evaluation, and education of employees in social welfare organizations. In this respect, significance can also be found in practical terms.

소비자의 다양한 선호속성을 반영한 컴퓨터 기반 상호작용 컨조인트 분석방법에 관한 연구

허필강(Pilkang Heo),서상윤(Sangyun Seo),이훈영(Hoonyoung Lee) 대한경영학회 2017 大韓經營學會誌 Vol.30 No.6

온라인 상품정보의 특성이 온라인 구전효과에 미치는 영향에 관한 연구

양한빈(Hanbin Yang),서상윤(Sangyun Seo),남양호(Yangho Nam),이훈영(Hoonyoung Lee) 한국인터넷전자상거래학회 2011 인터넷전자상거래연구 Vol.11 No.1

This study examined the effect of information characteristics as extension of previous research on the redefined online word of mouth; purchasing intention, information usefulness, word of mouth intention, product image. And this research also investigate the mediation effect of product involvement and trust propensity on relation between information characteristics and word of mouth. This study show that the information characteristics to have an effect on word of mouth are different. And this result differ from the previous research result. Also the product involvement and trust propensity mediate the effect of the information characteristics on word of mouth : purchasing intention, information usefulness, word of mouth intention, product image.