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만화 과제를 이용한 정신분열병 환자의 사회인지 능력의 측정
오정은,나명현,하태현,신용욱,노규식,홍순범,이경진,신민섭,이영호,권준수 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.3
Objectives : This study is to investigate the hypothesis that schizophrenic patients have difficulty in inferring mental state of others. Methods : Twenty schizophrenic patients and twenty normal subjects were administered to the Cartoon Task required inferring the character's intention in a given context. Results : The schizophrenic patients showed a statistically significant impairment in the Cartoon Task. Both groups chose the card depicting a frequent everyday action significantly more rather than the similar card to the last picture in each story for wrong answers. Conclusion : These preliminary results suggest that schizophrenia is associated with a specific deficit of the cognitive ability referred to as social cognition, and this deficit can be detected not only in the acute phase as found in previous research studies, but also in remission. Also when subjects fail to appreciate what is going on in the minds of other people, they seem to rely on a socially familiar experience.
Tae Wook Roh 한양대학교 세라믹연구소 2012 Journal of Ceramic Processing Research Vol.13 No.6
The performance of solid oxide fuel cells is dominated by their microstructure in the reaction zone which is a three-phase boundary (TPB) among the electrolyte, the electrode and gas phase, which can act as an electrochemically active site for the electrode reaction. In order to improve the performance of the unit cell, a new method was proposed involving the oxidation reaction of nano nickel powder. Furthermore, the nano-microstructure of a nickel/yttria-stabilized zirconia (Ni/YSZ) cermet as an anode substrate was fabricated. The oxidation of nickel was completed at 900 ο C over 2 h; this sintering temperature of the anode substrate was much lower than that of anode substrates including NiO and YSZ starting powder which is about 1450 ο C. The anode substrate was nano-microstructured using Ni nano powder. There was no shrinkage or grain growth after sintering. A homogeneous pore channel was created by supplying air into the anode substrate during the oxidation reaction of nickel without additional pore formers, and the fuel was supplied excellently.
노규식,신민섭,박희수,하태현,신용욱,김명선,권준수 大韓神經精神醫學會 2004 신경정신의학 Vol.43 No.5
Objectives : The purpose of this study was to investigate the changes of cognitive dysfunctions in patients with Obsessive-compulsive disorder (OCD) over the two-year of pharmacological treatment. Methods : The thirty-three OCD patients and thirteen normal subjects were administered the neuropsychological tests and clinical evaluations twice (at the baseline and two-year). Results : In spite of the two-year treatment, the accuracy of delayed recall on the Rey-Osterrieth Complex Figure Tests (RCFT), the numbers of responses on the category and letter test of Controlled Oral Word Association Test (COWA), the response time on the Trail Making Test part A (TMT-A) remained significantly impaired in the OCD patients compared with the normal controls. Conclusion : These findings suggest that the cognitive dysfunctions such as visuospatial memory and verbal fluency might be the underlying persisting neuropathophysiology of OCD.
Electromagnetic Shielding Effectiveness of Multifunctional Metal Composite Fabrics
Roh, Jung-Sim,Chi, Yong-Seung,Tae Jin Kang,,Nam, Sang-wook SAGE Publications 2008 Textile Research Journal Vol.78 No.9
<P>The growth of the electronic industry and the widespread use of electronic equipment in communications, computations, automations, bio-medicine, space, and other purposes have led to many electromagnetic interference (EMI) problems as systems operate in close proximity. It is likely to become more severe in the future, unless proper EMI control methodology and techniques are used to meet the electromagnetic compatibility requirements. This article presents a comprehensive review of EMI shielding theory and materials. Furthermore, a method for fabricating a multifunctional metal composite fabric with electromagnetic (EM) shielding characteristics was successfully developed. The parameters influencing EM shielding properties of the metal composite fabrics were investigated. It was shown that the EM shielding effectiveness of the metal composite fabrics could be tailored by modifying the metal grid size and geometry.</P>
ROH, KYU SIK,SHIN, MIN SUP,KIM, MYUNG-SUN,HA, TAE-HYUN,SHIN, YONG-WOOK,LEE, KYUNG JIN,KWON, JUN SOO Blackwell Science Pty 2005 Psychiatry and clinical neurosciences Vol.59 No.5
<P>Abstract </P><P>The purpose of the present study was to investigate the changes in the cognitive dysfunctions of patients with obsessive-compulsive disorder (OCD) over a 1-year period of pharmacological treatment. Twenty-one OCD patients and 20 normal subjects underwent neuropsychological tests and clinical evaluations on three separate occasions (baseline, 4 months, and 1 year after the start of medications). OCD patients continued to show significant impairments in the following cognitive measures compared with the normal controls: accuracy of immediate and delayed recall on the Rey-Osterrieth complex figure tests, the numbers of responses on the category fluency test, the response time on the trail making test – part A, and the number of perseverative response and perseverative errors on the Wisconsin card sorting test. The findings in this study suggested that impaired performance on cognitive domains, such as visuospatial memory and verbal fluency may underline the pathology of OCD.</P>
Demographics and clinical features of trachyonychia: Korean bi-center study
( Dongyoung Roh ),( Woo-il Kim ),( Min-young Yang ),( Won-ku Lee ),( Tae-wook Kim ),( Sung-min Park ),( Hyun-joo Lee ),( Gun-wook Kim ),( Hoon-soo Kim ),( Hyun-chang Ko ),( Byung-soo Kim ),( Moon-bum 대한피부과학회 2018 대한피부과학회 학술발표대회집 Vol.70 No.2
Background: Although the trachyonychia is widely known nail disorder, demographics and clinical features were rarely been studied in Korean literature. Objectives: To investigate demographics and clinical features of trachyonychia patients Methods: We included 216 trachyonychia patients who visited Pusan National University Hospital (Busan and Yangsan) over a 16-year period (2003-2018). We reviewed medical records and clinical photographs retrospectively. Results: Sex ratio was 1 : 1.88 (M : F). Onset age showed double peak on 0~10 year-old group (17.6%) and 41~50 year-old group (26.9%). Housewife was the most common occupation (27%), followed by restaurant, bakery, and bar workers (19.5%), nursing or caregiver (8.2%), chemical or metal processor (7.5%) and clothing makers (6.3%). Associated nail diseases were observed in 7.4% of total patients (onychomycosis 4.6%, paronychia 2.3%). Concomitant dermatologic diseases were observed in 25.5% of total patients (hand/foot eczema 9.7%, alopecial areata 7.9%, psoriasis 3.2%). 34.3% felt itching sensation and 9.3% felt pain. Clinically, 37% showed opaque trachyonychia, 72.7% showed ragged cuticle and 30.6% showed periungual erythema. Conclusion: To our knowledge, dermographics and clinical features of trachyonychia have rarely been studied worldwidely including Korea. The result of this study could be helpful when encountering trachyonychia.