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경추치상돌기 골절후 나타난 지연성척수병 2예 : Report of Two Cases
김영백,황성남,최덕영 대한신경외과학회 1992 Journal of Korean neurosurgical society Vol.21 No.8
We reported two cases of delayed myelopathy associated with odontoid fracture due to a nonunion and the resultant instability of the atlantoaxial joint. Both of two cases showed marked compression of cervical cord at C1 level by displaced odontoid process and overgrown fibrous tissue. We performed laminectomy of atals and posterior fusion from occiput to axis with autogenous iliac bone. We also reviewd the reported cases in the literature and surgical consideration.
경추부 후종인대골화증의 전방경유수술법 : 증례보고 Case Report
김영백,황성남,최덕영 대한신경외과학회 1991 Journal of Korean neurosurgical society Vol.20 No.9
The authors describe a case of a 41-year-old woman who developed clumsiness and decreased sensation of both hands due to ossification of the posterior longitudinal ligament (OPLL) of the cervical spine. The central part of the vertebral body and ossified area of the posterior longitudinal ligament was removed and the defect was filled with iliac bone graft. The operative result was excellent and the brief review about OPLL was made.
뇌의 미만성 축삭 손상 정도, 지능 지수 그리고 예후와의 상호관계
양승민,김영백,권정택,박승원,황성남,최덕영 중앙대학교 의과대학 의과학연구소 2001 中央醫大誌 Vol.26 No.2
Diffuse axonal injury (DAI) is defined as posttraumatic coma for over 24 hours without intracranial mass lesion. the purpose of this study was to examine the neurologic state of the patient and to evaluate the psychiatric sequela after DAI by psychometric analysis.Twenty eight patients with DAI were analyzed by a psychoanalyzer. Electroencephalography and magnetic resonance(MR) imaging were performed on eighteen patients. The ratio of male to female was about 6 to 1 and the major cause was traffic accident followed by fall down. Radiologic abnormality in MR image was predictors of poor outcome and early neurologic state was one of the most significant prognostic factor. Psychometric anlysis revealed that lntelligence Quotient was correlated with outcomes and most of patients with DAI were in normal range of lntelligence Quotient(67.9%) but they have suffered from variable psychologic problems, such as depression, anziety, phobia and dementia. Previous studies in DAI have been based principally on the prognostic factors and treatment without a systemic apporach to their meurologic and psychologic problems. Psychometric analysis can reveal psychologic symptom in the patients with DAI and appropriate management of their psychiatric problems may carry important implications for management of patients with moderate or servere DAI and improve rehabilitation outcomes.
황성남,박관,김영백,민병국,석종식,최덕영 대한신경외과학회 1993 Journal of Korean neurosurgical society Vol.22 No.6
Intraoperative aneurysmal rupture can be defined as aneurysmal rupture that takes place during any procedure from the induction of anesthesia to the closing of the wound and may result in a disastrous surgical outcome if not managed properly. The author experienced 11 cases of intraoperative aneurysmal rupture among 134 cases of aneurysm surgeries over the past 7 years at Yong-San hospital. The intraoperative rupture rate was 8% and there was statistically significant higher incidence of rupture in the early operated group. Rupture occured during dissection in 5 cases and during the clipping procedure in 6. The early and late mortality was 27 %, which included one case that could also be attributed to the direct effect of subarachnoid hemorrhage.
뇌동맥류 파열 환자에서 증후성 뇌혈관연축의 발생 및 회복에 영향을 미치는 인자들
최석민,석종식,권정택,민병국,황성남,김영백,홍현종 대한신경외과학회 1996 Journal of Korean neurosurgical society Vol.25 No.10
To determine the factors affecting development and recovery of symptomatic vasospasm. the author analysed the results of patients with ruptured intracranial aneurysms treated by nimodipine and prophylactic “triple0H” therapy. From January 1991 to December 1995. 199 patients underwent surgery for ruptured intracerebral aneurysms. Combined hypervolemic hemodilution was initiated at the time of admission. Induced hypertension was added immediately after surgery(aneurysmal neck clipping). All patients received nimodipine intravenously or orally until the 14th day of SAH Sixty patients underwent surgery on Day 0 through 2 after attacks of subarachnoid hemorrhage(Goup A) 105 patients on Day 3 through 14(Group B). and 35 patients after Day 14(Group C). Of 199 patients. 76(38%) patients suffered from symtomatic vasospasm. Symptomatic vasospasm occured in 34% of Group A patients. 33% of Group B patients. and 5% of Group C patients. Symtomatic vasospasm occured more frequently in the older age group. the Fisher group 3 and Hunt & Hess grades 3, 4 and 5 groups. Of 76 patients who suffered from symptomatic vasospasm. 47(62%) patients recovered completely. The author analysed the relationship between recovery rate and sex, age. Hunt & Hess agrde and Fisher group among these 76 patients. Recovery rates between these groups were not significantly different. Based on this experience the author believes that Hunt-Hess grade. Fisher group and age are important factors affecting symptomatic vasospasm development.
정보 과학 기술 : 데이터마이닝 기법을 이용한 중등학생들에 대한 인터넷 중독도 검사지 분석
김형철 ( Hyung Chul Kim ),김상미 ( Sang Mi Kim ),임순희 ( Soon Hee Im ),한지수 ( Ji Su Han ),고영민 ( Young Min Ko ),박찬정 ( Chan Jung Park ),김성백 ( Seong Baeg Kim ) 한국컴퓨터교육학회 2010 한국컴퓨터교육학회 학술발표대회논문집 Vol.14 No.1
인터넷 중독도를 검사하는 검사지들은 대부분 각 문항에 대해 5점 척도를 사용하여 점수를 주는 형태로 되어 있어, 중독도 검사 대상자인 응답자의 문항별 응답에 따른 점수를 전체 문항에 대해 단순히 합계한 값에 따라 중독도를 상, 중, 하로 나눈다. 이와 같은 형태의 인터넷 중독도를 위한 검사지로 Young의 검사지가 대표적이며, 최근 여러 기관에서 대상자를 세분화하여 각각의 세부 대상자에 맞는 문항들을 개발한 검사지들이 제시되고 있다. 하지만, 이러한 검사지들은 문항들의 전체 집합을 고려하여 단순히 나타나는 차이를 이용하여 응답자들을 분류할 뿐, 문항이나 대상자의 특성을 고려하여 응답자들이 보다 구체적으로 어떤 요인에 따라 분류될 수 있는 지는 연구되고 있지 않다. 데이터마이닝 기법은 대량의 데이터 안에 숨겨져 있는 유용한 상관 관계를 데이터 분석을 통해 알아내는 기법으로, 인터넷 중독도 검사지로부터 얻은 데이터를 효과적으로 분석하는 데 효과적이다. 따라서, 본 논문에서는 연관분석, 군집분석, 분류분석 등 세 가지 데이터 마이닝 기법을 적용하여 기존의 인터넷 중독도 검사지를 분석하여 인터넷 중독도에 영향을 미치는 요인들을 구체적으로 파악함으로써 보다 효과적인 예방 및 치료에 대한 대책을 제안한다.
Baeg, Kang‐,Jun,Khim, Dongyoon,Jung, Soon‐,Won,Kang, Minji,You, In‐,Kyu,Kim, Dong‐,Yu,Facchetti, Antonio,Noh, Yong‐,Young WILEY‐VCH Verlag 2012 Advanced Materials Vol.24 No.40
<P>On page 5433, Yong‐Young Noh, Antonio Facchetti, Kang‐Jun Baeg, and co‐workers report that high performance ambipolar complementary inverters and ring oscillators are provided by a remarkable enhancement of both hole injection and transport for n‐channel dominant N2200 OFETs. The significant enhancement of hole mobility in N2200 OTFTs is attributed to the strong dipoles in fluorinated high‐k gate dielectric blend of P(VDF‐TrFE):PMMA. </P>