다초점 렌즈 삽입술 후 시력의 만족도를 높일 수 있는 목표 굴절력 결정에 대한 연구

김소윤,김만수,Soyoon Kim,Man Soo Kim 대한안과학회 2012 대한안과학회지 Vol.53 No.2

Purpose: To study target refraction to improve visual quality in patients implanted with ReSTOR? SN6AD1 IOL (intraocular lens). Methods: This study included 128 patients (160 eyes) that had undergone cataract surgery and who had a far visual acuity score higher than 0.8 after 6 months. These patients were divided into 4 groups. The uncorrected visual acuity (UCVA) at far and near were greater than 0.8 and better than J1 in the first group (Group 1), greater than 0.8 and worse than J1 in the second group (Group 2), less than 0.8 and better than J1 in the third group (Group 3) and less than 0.8 and worse than J1 in the last group (Group 4). We also compared the postoperative refractive errors of the four groups. Results: At 6 months postoperatively, the spherical equivalent (SE) was -0.12 ± 0.51 in Group 1, 0.08 ± 0.54 in Group 2, -0.60 ± 0.60 in Group 3 and 0.02 ± 0.73 in Group 4. The SE value of Group 3 was significantly different compared to those of the other groups. Groups 1 and 3 who had better visual acuity at near distance show a negative value of SE, and Groups 3 and 4 who had worse visual acuity at far distance contained more individuals with an absolute value of SE greater than 0.5 compared to those in Groups 1 and 2. Conclusions: The refractive power in multifocal IOL insertion is different from that used in monofocal IOL insertion. As the SE indicates a greater myopic shift, the visual acuity is better at near distance, and, when the absolute value of SE is greater than 0.5, the visual acuity at far distance is decreased. J Korean Ophthalmol Soc 2012;53(2):223-229

여러 가지 기기에서의 각막곡률 비교

김소윤,정성근,Soyoon Kim,MD,Sung Kun Chung,MD,PhD 대한안과학회 2012 대한안과학회지 Vol.53 No.5

Purpose: To evaluate device efficacy using the corneal curvature value. Methods: Prospectively, 35 patients (70 eyes) were enrolled in the present study. Three sets of corneal curvature values were obtained using the autorefractor (RK-F1Ⓡ), manual keratometer (OM-2Ⓡ), partial coherence interferometry keratometer (IOL MasterⓇ), wavefront analyzer (KR-1WⓇ), and videokeratography (Orbscan IIⓇ). Repeatability of each device was evaluated by coefficient of variation, standard deviation, and intraclass correlation coefficient. RM-ANOVA on ranks was used to compare the differences in corneal curvatures among the devices. The Bland-Altman plot was performed to assess measurement agreement among the devices. Results: The coefficient of variation values from each device ranged from 2.92% (IOL masterⓇ) to 3.06% (Orbscan IIⓇ), and the values of intraclass correlation coefficient ranged from 0.965 (KR-1WⓇ) to 0.997 (IOL masterⓇ). Compared with the manual keratometer, there was a maximum corneal curvature difference of 1.23 D in KR-1WⓇ, while the other devices had differences less than 0.82 D. Conclusions: When assessing corneal curvature, the repeatability values were similar among the 5 devices, although a difference greater than 1 D was observed when comparing the KR-1WⓇ to the manual keratometer. J Korean Ophthalmol Soc 2012;53(5):618-625

Design and Evaluation of a Serious Digital Game to Discourage Indoor Tanning among Young Adults : A Theory-Based, Collaborative Approach

Soyoon Kim(김소윤),Soyeon Ahn(안소연),Sung Eun Park(박성은) 한국광고홍보학회 2021 한국광고홍보학보 Vol.23 No.3

본 연구는 기능성 디지털 게임이 젊은 연령층에서 실내 태닝을 방지하는데 효과적인 건강 커뮤니케이션 도구로서 쓰일 수 있는지 가능성을 조사해 보고자 수행되었다. 학제간 협력을 통한 게임 개발 과정에서, 게임의 주요 요소들은 행동 예측 이론을 바탕으로 실내 태닝 행동과 연관된 중요한 신념들에 (결과 평가, 규범적 신념, 통제감 등) 영향을 미치도록 개발되었다. 이 기능성 게임이 건강 관련 웹사이트나 교육용 자료와 같이 전통적으로 널리 쓰이는 건강 커뮤니케이션 도구들과 비교해 더욱 효과적인지 평가하기 위해, 501명의 미국 젊은 성인 남, 녀를 대상으로 온라인 실험을 실시하였다. 연구 결과 기능성 게임이 태닝과 관련된 중요한 신념들에 영향을 미치는데 전통적인 도구들보다 더 효과적이라는 통계적 증거는 발견되지 않았다. 또한, 이 게임이 실내 태닝 행동 의도에 미치는 영향에 있어서, 젊은 성인 여성들이나 기존에 실내 태닝 경험이 없는 참가자들 사이에서는 가장 효과적인 도구로 나타난 것과는 달리, 남성이나 실내 태닝 경험이 있는 참가자들 사이에서는 가장 비효과적인 도구로 나타났다. 이 연구는 대안적인 건강 증진 및 교육 도구로서 기능성 디지털 게임의 활용 가능성에 주목하는 연구자와 실무자들에게 유용한 가이드를 제공하며, 이러한 뉴미디어 플랫폼이 젊은이들 사이에서 일괄적으로 긍정적으로 효과를 미칠 것 이라는 가정에 주의를 환기시키는 중요한 함의를 지닌다. This study examined the feasibility of implementing a digitalized serious game as an innovative health communication tool to prevent indoor tanning among young adults. In an interdisciplinary, collaborative design process, the main game elements were strategically developed to shape the outcome, normative, and control beliefs known to influence indoor-tanning behavior based on behavioral prediction theories. An online experiment with 501 young adults in the United States was conducted to evaluate the game’s effectiveness relative to conventional intervention modalities that have been widely used for health communication interventions. Results showed little evidence demonstrating the merit of using a digital game over traditional intervention tools, such as a health website or brochure, in influencing critical indoor-tanning beliefs. In addition, the game was among the most effective tools in discouraging future indoor tanning intention for female participants, but appeared to be the least effective tool for male participants and those who had previously tanned indoors. This study offers useful guidance for researchers and practitioners who are interested in the potential of serious games as an alternative health-intervention tool and suggests caution in assuming universal effects of using the new media platform without considering differences within the seemingly homogeneous group of young individuals.

기후변화에 따른 도시 노후건축물의 재해피해 분석

김소윤(Kim, Soyoon),윤지윤(Yoon, Jiyoon),김홍석(Kim, Brian H.S) 대한국토·도시계획학회 2016 國土計劃 Vol.51 No.5

혈류량 및 비대칭 분지각이 전방 순환 동맥류 발생에 미치는 영향에 관한 수치해석 연구

김소윤(Soyoon Kim),노경철(Kyoungchul Ro),유홍선(Hong Sun Ryou) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11

Most aneurysms in the cranial cavity occur at the bifurcation of anterior circulation. An aneurysm is easily ruptured, and it is fatal for most patients. Generally it is known that aneurysm occurs when arterial wall is deformed by high pressure or wall shear stress(WSS). Blood flow and geometry of vessel are important factors for location of aneurysm occurrence. Numerical study is performed for various bifurcation angles and flow rate ratio in branched artery with different diameters to predict a location of aneurysm by hemodynamic characteristics. As bifurcation angle increased, high pressure region moved to the bifurcated artery with larger angle when flow rate ratio is constant. When flow rate ratio increased, the high WSS region moved to the side of large flow rate ratio. Our results showed that high pressure or WSS region occur at location of aneurysm as mentioned in the clinical research. This indicates that geometry of artery and blood flow rate affect a location of aneurysm.

혈액 투석 시 투석 각도에 따른 인조혈관 내 유동 특성에 관한 수치해석 연구

김소윤(Soyoon Kim),노경철(Kyoungchul Ro),유홍선(Hong Sun Ryou) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.10

Hemodialysis is one of the renal replacement therapies for patients with renal failure. It is important for efficient hemodialysis to improve a patency rate of the access. Analyzing the blood flow in the graft is necessary for high patency rate because stenosis is highly related to the blood flow. During the hemodialysis, the blood flow from an artificial kidney affects the flow characteristics in the graft. Thus, hemodialysis technique such as an angle of needle has to be set up, but it is not standardized clearly. In this study, the numerical analysis is performed for an effect of the angle of needle on the flow in the graft. With the large angle of needle, high AWSS occurs and can cause an activation of platelets. On the other hand, backflow occurs when the needle is parallel to the graft because of the flow jet from the needle. Low AWSS and high OSI appears at venous graft and relate to stenosis. It is concluded that some degrees of angle is needed for effective hemodialysis.

유전자 맞춤의학(Personalized Genomic Medicine)의 사회적 함의

김상현(Kim Sanghyun),김한나(Kim Hannah),이일학(Lee Ilhak),김소윤(Kim Soyoon) 한국생명윤리학회 2013 생명윤리 Vol.14 No.2

본 연구는 2003년 인간 지놈 프로젝트 완성이후 사회적, 학문적으로 더욱 관심을 갖게 된 유전자맞춤의학이 어떤 사회적 함의(social implications)를 갖고 있는지를 도출하고자 하였다. 이를 위해 먼저 유전자 맞춤의학의 사회적?이론적 배경(생의료화 이론), 정의와 명암을 살펴본 후, 기존의 유전자 맞춤의학에 대한 국민 인식 조사 결과를 바탕으로 6가지 사회적 함의(과학기술에 대한 신뢰, 유전자 맞춤의학의 보건학적 의미, 프라이버시로서 개인정보보호, 사회적 오명으로서 유전자 차별, 의학의 상업화와 이익분배, 계층간 유전 및 건강, 삶의 질 격차)를 이끌어내고 이에 대해 논의하였다. The ultimate goal of this paper is to draw the social implications of personalized genomic medicine, which have been received attention from society and academy since completion of human genome project in 2003. For this, it was intended to represent the social & theoretical backgrounds (biomedicalization), definition, and light and shadow of personalized genomic medicine. Based on the results of Koreans" perception on personalized genomic medicine, PGM 21 survey of 2012, six social issues and implications (trust of scientific technology; meaning in public health; protection of personal information as privacy; genetic discrimination as social stigma; commercialization of medicine and profits sharing; differences, disparities, and inequalities in gene, health, quality of life, and life itself by SES & nation) were drawn and discussed.

ε-Ga₂O₃ 박막의 성장과 상전이를 이용한 고품질 β-Ga₂O₃ 박막의 제조

이한솔,김소윤,이정복,안형수,김경화,양민,Lee, Hansol,Kim, Soyoon,Lee, Jungbok,Ahn, Hyungsoo,Kim, Kyounghwa,Yang, Min 한국결정성장학회 2021 한국결정성장학회지 Vol.31 No.1

Ga2O3의 준 안정상인 ε-Ga2O3는 육각형 구조나 준 육각형 구조를 가지는 기판들과 정합성이 우수하여 β-Ga2O3보다 상대적으로 쉽게 낮은 표면 거칠기와 결함 밀도를 갖는 박막을 얻을 수 있다. 이에 ε-Ga2O3를 고온에서 열처리하면 β-Ga2O3로 상전이 되는 특성을 이용하여 표면 거칠기와 결함 밀도가 낮은 고품질 β-Ga2O3 박막의 제조를 시도하였다. 이를 위해서는 고품질 ε-Ga2O3 박막의 성장이 선행되어야 하므로 본 연구에서는 갈륨과 산소의 공급 유량 비율에 따른 Ga2O3 박막의 구조적, 형태적 특성을 분석함으로써 최적의 유량 비율을 조사하였다. 추가로 열처리 조건과 ε-Ga2O3 박막에 혼입된 β-Ga2O3가 상전이 이후 β-Ga2O3의 결정성에 미치는 영향도 함께 조사하였다. ε-Ga2O3, a metastable phase of Ga2O3, has excellent compatibility with substrates having a hexagonal structure or a quasi-hexagonal structure, so that a film having a relatively lower surface roughness and defect density than β-Ga2O3 can be obtained easily. Accordingly, we attempted to fabricate a high-quality β-Ga2O3 film with a low surface roughness and defect density using the property of phase transition to β-Ga2O3 when ε-Ga2O3 is annealed at a high temperature. For this, the growth of high-quality ε-Ga2O3 films must be preceded. In this study, the optimal flow rate was investigated by analyzing the structural and morphological characteristics of the ε-Ga2O3 film according to the supplied precursor ratio. In addition, the annealing condition and the effect of β-Ga2O3 mixed in the ε-Ga2O3 film on the crystallinity of β-Ga2O3 after phase transition were also investigated.

MCDM 기법을 이용한 도심지 토사재해 예방을 위한 도시계획적 대책 위치 결정방법 제안

문용희,이상은,김소윤,김명수,Moon, Yonghee,Lee, Sangeun,Kim, Soyoon,Kim, Myoungsoo 한국안전학회 2017 한국안전학회지 Vol.32 No.5

The landslide disaster damage has been increased by mountain development, leading to construction of educational facilities, medical facilities, petty industrial facilities, and large housing complexes. Therefore, effective regulation is required as an effort in urban planning solutions. For suggesting specific mitigation strategies on urban landslide, this study aims to define evaluation criteria for urban planning management of debris-flow disaster. AHP (Analytic Hierarchy Process), one of the multiple criterion decision making methods, was utilized in this study. This study makes use of 16 sub-criteria under the framework of hazard, exposure, and vulnerability, and well-planned expert survey measures their weights. The weights are also applied to evaluate each grid in urban space (min $10{\times}10m$) and classify it with red, orange, yellow, or green grade so that areas at higher risk are clearly identified. This study concludes that the suggested method is useful to support a strategies for urban planning management of debris-flow disaster, particularly in a GIS base.

도시 풍수해 예방을 위한 도시계획적 대책 추진현황

이병재(Lee Byoungjae),김소윤(Kim Soyoon),문용희(Moon Yonghee) 한국방재학회 2018 한국방재학회 학술발표대회논문집 Vol.2018 No.-

본 연구에서는 기후변화 영향으로 도시에서의 풍수해 재해가 점차 대형화, 다양화되는 추세에 대응하여 재해에 안전한 도시를 조성하기 위해 추진되고 있는 도시계획적 대책 현황을 조사 및 분석하였다. 기후변화 불확실성에 대비하기 위해서는 도시계획 수립단계부터 재해취약지역을 고려한 토지이용, 기반시설, 건축물 등의 계획 수립체계를 마련해야 한다. 국토교통부는 2011년 12월 15일 도시계획 수립지침을 개정하여 재해 취약성 분석을 도입하였고, 2015년에 국토계획법을 개정하여 도시계획을 수립ㆍ변경하는 과정에서 기후변화에 따른 재해 취약성 분석을 시행하고 이를 반영토록 의무화하였다. 본 연구에서는 국내 기후변화 재해 취약성 분석 및 재해예방형 도시계획 추진 현황 및 사례를 조사하여 소개하고자 하였다. 도시의 풍수해 취약요인을 이해하기 위한 실질적인 분석을 위하여 재해 취약성 분석 구조는 현재 및 미래 재해 취약성에 대해 분석 가능하도록 도출되었다. 현재 및 미래 재해 취약성 분석 결과를 중첩하여 도시 종합재해 취약성을 도출하고 이에 근거한 재해예방형 도시계획이 수립되고 있다.