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온라인 스포츠게임 경험, 팀 동일시, 소비행동간의 관계
박철완(Park, Cheol Wan),한진욱(Han, Jin-Wook),유정석(Yoo, Jung-Seck) 한국체육과학회 2014 한국체육과학회지 Vol.23 No.1
The purpose of this study was to examine the relationships among on-line sport game experience, team identification, and on-line sport game consumption behaviors from on-line baseball game users. Toward this end, a total of 320 on-line baseball game users in Seoul was selected using a convenient sampling method. 300 usable questionnaires were returned to the researchers. Data analyses were conducted in terms of frequency analysis, exploratory factor analysis, reliability test, correlation analysis, descriptive analysis, and multiple regression analyses with PASW18.0. The results of this study indicated that (1) all the three sub-dimensions of on-line sport game experience including degree of usage, gratifications of usage, and sense of presence had significant effects on team identification, and (2) team identification within on-line baseball game had a significant impact on on-line sport game consumption behavior. Additional implications and directions for future research were discussed.
척추 결핵의 전방유합술시 Titanium Mesh Cage의 효과
정주호,이상구,유찬종,한기수,김우경,김영보,박철완,이언,Jeong, Ju-Ho,Lee, Sang-Gu,Yoo, Chan-Jong,Han, Ki-Soo,Kim, Woo-Kyung,Kim, Young-Bo,Park, Cheol-Wan,Lee, Uhn 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.8
Objective : The maintenance of the correction of kyphotic deformity is one of the difficult problem in tuberculous spondylitis after anterior debriment and fusion with tricortical bone graft. The goal of this study is to find out the efficacy of titanium mesh cage impacted with autogenous bone chip in tuberculous spondylitis treated with anterior intervertebral fusion. Materials and Method : Twelve patients were treated with anterior intervertebral fusion using titanium mesh cage for tuberculous spondylitis from January 1996 to June 1999. We analized the changes in the correction of kyphotic deformity, changes of ESR and CRP, fusion state and recurrence after anterior intervertebral fusion with titanium mesh cage. Results : Clinical symptoms were improved in all twelve patients without any neurologic complications. The mean kyphotic angle corrected was 7.3 degrees immediately after operation, but the loss of correction of kyphotic angle was 2.2 degrees after 3 months and 2.6 degrees after 6 months. We found that the loss of correction of kyphotic deformity occurred mainly within the first 3 months after surgery. Only one patient, suffered from acute hepatic failure after first operation and had an insufficient anti-tuberculous medication therapy, showed recurrence of tuberculous spondylitis after 6 months. The patient underwent a second operation with posterior fixation procedure with good outcome. The changes of ESR and CRP were not specifically important factor to reveal recurrence of tuberculosis of the spine in our series. Conclusion : The surgical procedure of tuberculous spondylitis using titanium mesh cage with bone chip seems to be an effective procedure to minimize loss of the correction of kyphotic deformity without any aggravating inflammatory change and recurrence with titanium mesh cage, when sufficient debridement and anti-tuberculous chemotherapy are achieved.
정주호,이상구,유찬종,한기수,김우경,김영보,박철완,이언,Jeong, Ju-Ho,Lee, Sang-Gu,Yoo, Chan-Jong,Han, Ki-Soo,Kim, Woo-Kyung,Kim, Young-Bo,Park, Cheol-Wan,Lee, Uhn 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.10
The intradural lumbar disc herniation which was first described by Dandy in 1942 is unusual. The pathogenesis is obscure and preoperative diagnosis is not easy. The patient usually have more severe neurologic deficits than those found in the much more common extradural disc herniations. We experienced two cases of the intradural lumbar disc herniation who had previous disc operations and the symptoms and neurologic signs were improved after removal of the intradural sequestration of disc fragments.
PVDF 전구체를 이용한 탄소 도포 실리콘 재료의 개발 및 리튬이차전지 음극특성
도칠훈,정기영,진봉수,김현수,문성인,윤문수,최임구,박철완,이경직,Doh, Chil-Hoon,Jeong, Ki-Young,Jin, Bong-Soo,Kim, Hyun-Soo,Moon, Seong-In,Yun, Mun-Soo,Choi, Im-Goo,Park, Cheol-Wan,Lee, Kyeong-Jik 한국전기전자재료학회 2006 전기전자재료학회논문지 Vol.19 No.7
Si-C materials were synthesized by the heating the mixture of silicon and polyvinylidene fluoride (PVDF). The electrochemical properties of the Si-C materials as the high capacitive anode materials of lithium secondary batteries were evaluated by the galvanostatic charge-discharge test through 2032 type $Si-C{\mid}Li$ coin cells. Charge-discharge tests were performed at C/10 hour rate(C = 372 mAh/g). Initial discharge and charge capacities of $Si-C{\mid}Li$ cell using a Si-C material derived from PVDF(20wt.%) were found to be 1,830 and 526 mAh/g respectively. The initial discharge-charge characteristics of the developed Si-C electrode were analyzed by the electrochemical galvanostatic test adopting the capacity limited charge cut-off condition(GISOC). The range of reversible specific capacity IIE(intercalation efficiency at initial discharge-charge) and IICs(surface irreversible specific capacity) were 216 mAh/g, 68 % and 31 mAh/g, respectively.
본태성 수전증과 파킨슨병 환자에서 미토콘드리아 DNA 비교 분석
김래상,유찬종,이상구,김우경,한기수,김영보,박철완,이언,Kim, Rae Sang,Yoo, Chan Jong,Lee, Sang-Gu,Kim, Woo-Kyung,Han, Ki-Soo,Kim, Young-Bo,Park, Cheol-Wan,Lee, Uhn 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.11
Essential tremor(ET) is the most common movement disorder however there has been little agreement in the neurologic literature regarding diagnostic criteria for ET. Familial ET is an autosomal dominant disorder presenting as an isolated postural tremor. The main feature of ET is postural tremor of the arms with later involvement of the head, voice, or legs. In previous studies, it was reported that ET susceptibility was inherited in an autosomal dominant inheritance. As with previous results, it would suggest that ET might be associated with defect of mitochondrial or nuclear DNA. Recent studies are focusing molecular genetic detection of movement disorders, such as essential tremor and restless legs syndrome. Parkinson's disease(PD) is a neurodegenerative disease involving mainly the loss of dopaminergic neurons in substantia nigra by several factors. The cause of dopaminergic cell death is unknown. Recently, it has been suggested that Parkinson's disease many result from mitochondrial dysfunction. The authors have analysed mitochondrial DNA(mtDNA) from the blood cell of PD and ET patients via long and accurate polymerase chain reaction(LA PCR). Blood samples were collected from 9 PD and 9 ET patients. Total DNA was extracted twice with phenol followed by chloroform : isoamylalcohol. For the analysis of mtDNA, LA PCR was performed by mitochondrial specific primers. With LA PCR, 1/3 16s rRNA~1/3 ATPase 6/8 and COI~3/4 ND5 regions were observed in different patterns. But, in the COI~1/3 ATPase 6/8 region, the data of PCR were observed in same pattern. This study supports the data that ET and PD are genentic disorders with deficiency of mitochondrial DNA multicomplexes.