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황준서,김정훈,정호경,허장원,김성준,유영석.Joon Seo Hwang. M.D... Jeong Hun Kim. M.D... Ho Kyung Choung. M.D... Jang Won Heo. M.D... Seong-Joon Kim. M.D... Young Suk Yu. M.D.. 대한안과학회 2007 대한안과학회지 Vol.48 No.9
Purpose: To study the clinical characteristics and visual prognosis of Leber’s congenital amaurosis in Korea. Methods: Children who were diagnosed with Leber`s congenital amaurosis at Seoul Natioanl University Children`s Hospital between 1992 and 2004, were included in this study. The medical records pertaining to the clinical characteristics and visual outcomes of the patients were retrospectively reviewed. Results: The mean age of the patients at presentation and during the subsequent follow-up period was 15.5 and 62.7 months, respectively. The principal symptoms included lack of fixation (69.0%) and nystagmus (23.8%). At first observation, nystagmus was found in 40 patients, and the appearance of the fundi were variable, including `normal` (23.8%), pigmentary degeneration (54.8%), vascular attenuation (35.7%) and macular coloboma (19.0%). At the age of three to five years, 44.4% of patients had hyperopia greater than +5D. At the time of last follow-up, the visual acuities of the patients who were examined after the age of four were `hand motion` in 68.7%, ≥20/400 in 9.4%. No patient had visual acuity better than 20/200. Eight (25%) patients could read with glasses or low-vision aids. Conclusions: The visual prognosis of patients with Leber’s congenital amaurosis was poor in most cases, but a majority of our patients displayed a stable clinical course. Progression was rare, and one fourth of the patients were able to read with appropriate aides. In conclusion, regular follow-up care to assess visual function is necessary for optimal outcomes.
Yebin D. Ahn,Dahyun Yi,Haejung Joung,Eun Hyun Seo,Young Hwa Lee,Min Soo Byun,이준호,So Yeon Jeon,Jun-Young Lee,Bo Kyung Sohn,Dong Young Lee,KBASE Research Group 대한신경정신의학회 2019 PSYCHIATRY INVESTIGATION Vol.16 No.11
Objective The purpose of this study is to identify the demographic variables that are affecting performances on the Logical Memory (LM) subtest included in the Korean version of the Wechsler Memory Scale (WMS)-IV and to provide normative data on the LM subtest for the middle-age and elderly Korean people. Methods The participants were 435 non-demented adults aging from 50 to 90 and with the educational level ranging from 0 to 21 years. Results Age and education were found to be significantly associated with performance on the LM subtest, while gender effect was not statistically significant. Therefore, we stratified the norm blocks by age and education. Age was divided into three groups: 50–59, 60–74, and 75–90 years. Education was stratified into three groups: 0–8 years, 9–12 years, and 13 years or more. Conclusion The normative data provided in the current study are expected to be useful in clinical and research settings to detect or define subtle changes in episodic memory in Korean adults and elderly, and can also be used for cross-cultural comparison of verbal episodic memory performance among elderly populations using different languages.
이재원(Jaewon Lee),배윤진(Yun-Jin Bae),김강산(Kang-San Kim),이철희(Cheol-Hee Lee),진경아(Kyung-A Jin),서현교(Hyun-Kyo Seo),이호근(Ho-Keun Lee),김형석(Hyung-Suk Kim),최현준(Hyun-Jun Choi),서영호(Young-Ho Seo),유지상(Ji-Sang Yoo),김동욱(D 한국방송·미디어공학회 2010 한국방송공학회 학술발표대회 논문집 Vol.2010 No.11
최근 3D 영상에 대한 대중화가 급속히 진행되고 있음에도 불구하고 한 번 만들어진 영상/비디오를 재사용하거나 조작하여 다양한 형태의 콘텐츠를 만들지 못하고 있다. 본 논문에서는 깊이영상과 양안(스테레오) 영상 또는 깊이영상과 단안 영상이 주어졌다고 가정하고 깊이영상을 조작하여 양안 시차(parallax)를 변화시키는 방법을 제안한다. 시차변화의 대상은 부분영상이며, 특정 개체를 추출하여 깊이정보를 수정하고, 이를 바탕으로 스테레오 영상을 재구성한다. 본 논문에서는 정지영상만을 대상으로 하며, 동일한 방법을 동영상에 적용하면 동영상 또한 시차를 변화시킨 결과를 얻을 수 있다. 실험은 Middlebury의 테스트 영상들을 대상으로 제안한 방법을 적용하여 자연스러운 스테레오 영상을 얻을 수 있음을 보인다.
Kim, Sun Kyung,Park, Myonghwa,Lee, Yunhwan,Choi, Seong Hye,Moon, So Young,Seo, Sang Won,Park, Kyung Won,Ku, Bon D.,Han, Hyun Jeong,Park, Kee Hyung,Han, Seol-Heui,Kim, Eun-Joo,Lee, Jae-Hong,Park, Sun A Cambridge University Press 2017 INTERNATIONAL PSYCHOGERIATRICS - Vol.29 No.2
<B>ABSTRACT</B><B>Background:</B><P>Personality may predispose family caregivers to experience caregiving differently in similar situations and influence the outcomes of caregiving. A limited body of research has examined the role of some personality traits for health-related quality of life (HRQoL) among family caregivers of persons with dementia (PWD) in relation to burden and depression.</P><B>Methods:</B><P>Data from a large clinic-based national study in South Korea, the Caregivers of Alzheimer's Disease Research (CARE), were analyzed (<I>N</I> = 476). Path analysis was performed to explore the association between family caregivers’ personality traits and HRQoL. With depression and burden as mediating factors, direct and indirect associations between five personality traits and HRQoL of family caregivers were examined.</P><B>Results:</B><P>Results demonstrated the mediating role of caregiver burden and depression in linking two personality traits (neuroticism and extraversion) and HRQoL. Neuroticism and extraversion directly and indirectly influenced the mental HRQoL of caregivers. Neuroticism and extraversion only indirectly influenced their physical HRQoL. Neuroticism increased the caregiver's depression, whereas extraversion decreased it. Neuroticism only was mediated by burden to influence depression and mental and physical HRQoL.</P><B>Conclusions:</B><P>Personality traits can influence caregiving outcomes and be viewed as an individual resource of the caregiver. A family caregiver's personality characteristics need to be assessed for tailoring support programs to get the optimal benefits from caregiver interventions.</P>
Electronic-dimensionality reduction of bulk MoS<sub>2</sub> by hydrogen treatment
Cho, Soohyun,Kim, Beom Seo,Kim, Beomyoung,Kyung, Wonshik,Seo, Jeongjin,Park, Min,Jeon, Jun Woo,Tanaka, Kiyohisa,Denlinger, Jonathan D.,Kim, Changyoung,Odkhuu, Dorj,Kim, Byung Hoon,Park, Seung Ryong The Royal Society of Chemistry 2018 Physical chemistry chemical physics Vol.20 No.35
<P>A reduction in the electronic-dimensionality of materials is one method for achieving improvements in material properties. Here, a reduction in electronic-dimensionality is demonstrated using a simple hydrogen treatment technique. Quantum well states from hydrogen-treated bulk 2H-MoS2 are observed using angle resolved photoemission spectroscopy (ARPES). The electronic states are confined within a few MoS2 layers after the hydrogen treatment. A significant reduction in the band-gap can also be achieved after the hydrogen treatment, and both phenomena can be explained by the formation of sulfur vacancies generated by the chemical reaction between sulfur and hydrogen.</P>