서울시 아동을 대상으로 한 주의력결핍과잉행동장애의 선별기준에 대한 연구

양영희,김재원,김예니,조수철,김붕년 大韓神經精神醫學會 2008 신경정신의학 Vol.47 No.3

Objectives : The purpose of this study is to investigate a cut-off value for screening children with ADHD in community based sample using the Korean Child Behavior Checklist (K-CBCL) and the Korean ADHD Rating Scale (K-ARS). Methods : Children aged 6 to 8 (n=661) participated in this study. The K-CBCL and the K-ARS were used as the screening instruments. Diagnoses were confirmed through the Diagnostic Interview Schedule for Children Version Ⅳ (DISC-Ⅳ). Results : Of the 189 subjects who underwent the DISC-Ⅳ, 26 subjects were diagnosed as ADHD. In the K-CBCL, scores in the attention problems, externalizing problems and total behavioral problems were positively correlated with the total score of the K-ARS. The K-ARS-Parent version (K-ARS-P) and above three scales in the K-CBCL showed significant screening validity in the ROC curve analysis. The reasonable level of sensitivity, specificity, and negative predictive value were obtained in the total scores ≥90^(th) percentile in the K-ARS-Parent and ≥60T scores in the K-CBCL attention problems. The optimal level of specificity, positive predictive value and negative predictive value were obtained when combined the K-CBCL (≥60T scores in the attention problems and ≥63T scores in the total problems) and the total scores ≥90^(th) percentile in the K-ARS-P. Conclusion : The combined use of the K-CBCL and the K-ARS-P may serve as useful screening methods for ADHD children.

스포츠 두부 손상

윤영설,진동규,김긍년,장진우,김영수 대한스포츠의학회 1999 대한스포츠의학회지 Vol.17 No.1

Head injury is the most frequent direct cause of death in sports. Furthermore, injury to the head takes an singular importance when we realise the brain is neither capable of regeneration nor, unlike many other body parts and organs, of transplantaion. Every effort must be made to protect the athlete's head as injury can lead to dementia, epilepsy, paralysis and death. There are three distinct types of stress that can be generated by an acceleration force to the head : compressive, tensile and shearing forces. The differential diagnosis with a head injury includes cerebral concussion, intracranial hemorrhage, postconcussion syndrome, second impact syndrome, malignant brain edema. 90 to 95% of all head injuries are cerebral concussions and more than 90% all cerebral concussions fall into mild categories. With a head injury the ABCs of first aid must be followed and then a neurological examination will be followed. In the case of the intracranial hematoma. definite surgical evacuation is indicated and in cases of the closed head injuries and most severe degree of concussion. observation is appropriate, with careful neurological monitoring. Over the last 20 years there has been a dramatic decrease in the most serious head injuries due to multiple factors. There are five areas that can affect a reduction in head injuries. The first two involve rules and coaching technique changes. The other three areas involve improvements in conditioning (especially of the neck), equipment, and finally medical supervision. The reduction in incidence and severity of athletic head injury gas been the results of changes and improvements instituted following constant study and research. And also, for the reduction in incidence of athletic head injury every effort or team physician, athletic trainer, physical trainer and team coaches should be necessary.

MPLS의 GSMP 인터페이스에 관한 연구

차영욱,김진년,백현규 安東大學校 工業技術硏究所 2001 공업기술연구논문집 Vol.8 No.1

계층 3의 라우팅과 계층 2의 레이블 스위칭 기술을 통합한 MPLS는 고속의 전달, 트래픽 엔지니어링 그리고 가상 사설망 서비스의 지원을 가능하게 한다. 레이블 스위치 및 제어기 사이에서 동작하는 GSMP 프로토콜을 연결, 구성, 장애, 성능관리 및 동기화 기능을 제공하는 개방형 인터페이스이다. 개방형 인터페이스는 다양한 융통성을 제공하는 반면에 전통적인 스위치-대-스위치 연결설정에 비하여 지연을 감수하여야 한다. GSMP 기반의 개방형 인터페이스에서 망 관리를 위한 SNMP에이전트는 레이블 스위치 또는 제어기에 탑재될 수 있다. 본 논문에서는 MPLS네트워크의 전달평면과 제어평면사이에 적용된 GSMP 인터페이스에서 병렬형 연결설정 방안과 망 관리 모델에 대하여 제안하였다. MPLS, which integrates routing of layer 3 and switching of layer 2, enables support of fast forwarding, traffic engineering and virtual private network services. GSMP is open interface, which provides connection, configuration, event and performance management and adjacency protocol between label switch and controller. The GSMP open interface separates control plane and transport plane. This separation allows flexibility in the network, but it suffers more setup delay than the traditional switch-by-switch connection setup. In the GSMP open interface, the functions of network management will be located either in controller or in label switch. This paper proposes parallel mechanism of connection establishment and network management model, in which the GSMP open interface is applied between control plane and transport plane of the MPLS network.

^161, ^163Dy의 0.003eV~50keV의 중성자 포획 단면적 측정

민영기,윤정란,노태익,김귀년,이삼열 東亞大學校附設基礎科學硏究所 2002 基礎科學硏究論文集 Vol.19 No.1

교토대학 원자로 연구소의 46MeV 전자선형가속기를 사용하여 중성자 TOF 방법으로, 에너지 영역 0.003eV∼50keV의 ^161, 163Dy sample의 중성자 포획 단면적을 측정하였다. 본 실험에서 사용된 Bi_4Ge_3O_12(BGO) 섬광 검출기는 sample의 핵반응에서 나오는 즉발 포획 감마선 측정에 사용하였다. 이 검출기는 중성자 선원으로부터 거리 12.7±0.02m 위치에 12개의 블록으로 되어 있으며, sample에 포획되는 중성자 flux의 절대치를 구하기 위해 Sm(n, γ) 및 ^10B(n, αγ) 반응을 이용하였다. ^161, 163Dy에 대한 포획 단면적 측정결과는 ENDF/B-VI 결과와 비교하였다. The neutron capture cross sections of ^161, 162Dy has been measured in the energy region from 0.003eV 50keV by using the neutron time-of-flight(TOF) promptγmethod with a 46MeV electron linear accelerator at the Research Reactor Institute, Kyoto University. An assemble of twelve pieces of BGO scintillation detectors, which was placed at a distance of 12.7±0.02mm from the neutron source, was employed as a total energy absorption detector for the prompt capture gamma-ray measurement, to obtain the absolute capture cross section value. The sample of ^161, 163Dy is a form of metallic plate. An enriched boron sample was employed to monitor the neutron flux/spectrum of the TOF beam using the standard reference cross section of the ^10B(n, αγ) reaction. Previous measurements and evaluated data in ENDF/B-VI was compared with the present results.

자녀의 문제행동에 대한 도움추구 방식과 정신과 진료에 대한 만족도 : 다기관 시점 역학조사

이영식,서동수,홍성도,안동현,송동호,김붕년 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.6

Objectives : This study was done to evaluate present status of child and adolescent psychiatric practice in the view of medical consumers. Help seeking behaviour process after recognizing their children's problem, satisfaction with psychiatric service, and difficult problems during practice were evaluated, and variable factors affecting them were analysed. Methods : Through 10 multi-center point epidemiologic survey, 540 parents and their psychiatrists were involved in this study by structured questionnaire. Results : Above 70% of subjects reported positive response to psychiatric service. The barrier to psychiatric service were different by subjects' age. In children, Parents' inability to identify severity of children's problem and proper management place were major reason. However in adolescent, children's lack of desire to receive help and parents' worry about stigma related to receiving help were major barrier to psychiatric service. Conclusion : These findings suggest the importance of interagency collaboration and education services. Researchers and policymakers should consider strategies to reduce barrier related to perceptions of mental health problems and services, especially in adolescents.

퇴행성 관절염에 있어서 SAMe의 치료효과에 관한 임상적 연구

김옥년,진영안 최신의학사 1987 最新醫學 Vol.30 No.11

퍼지알고리즘를 이용한 유도전동기 속도제어에 관한 연구

조정민,전기영,함년근,이승환,이훈구,한경희 명지대학교 대학원 1999 대학원논문집 Vol.3 No.-

The conventional PI controller are fragile in parameter variation and load-variation. Therefore, in this paper, a speed control algorithm based on the Fuzzy PI controller is proposed for the high performance speed control of a voltage ?? inverter to drive 3-phase induction motors. The computer simulation and experiment results show that the proposed controller are more excellent control characteristics than conventional PI controller in transient-state and steady-state response.

관동맥질환에서 각종 지질 및 지단백의 변화

황석순,김권배,손수인,서영숙,김기식,김윤년 啓明大學校 醫科大學 1990 계명의대학술지 Vol.9 No.3

To evaluate the relationship between coronary artery disease(CAD) and the various levels of lipid and lipoproteins, we performed coronary angiography to the patient, who were suspected coronary artery disease from January 1988 to August 1989. And compared it with normal control group. The number of control group were 41(21 men, 20 women), and the patient group were 52(42 men, 10 women). The age was not differ between two groups. The results were as follows; 1. In CAD group, the plasma concentration of total lipid, triglyceride, total cholesterol, phosphlipid, and TC/HDL ratio were significantly higher than in control group. But, though, the concentration of HDL was lower in CAD group, had no significant difference between two groups. 2. The severity of CAD were well correlated with total lipid, cholesterol, LDL, trigylceride, phospholipid, TC/HDL, LDL/HDL levels. HDL level didnt's show significant correlation with the degree of CAD. We concluded that total lipid, cholesterol, trigylceride TC/LDL ratio were valuable markers of CAD in Korean, but futhur studies of lipoproteiins and other risk factors in the large population will be recommended.

병사용 진단서 발급을 위해 복강경검사에서 간조직검사를 시행한 젊은 성인 남자의 간침생검 소견 : 새로운 만성간염병리분류를 기준으로 Histologic Grading and Staging of Chronic Hepatitis

전재윤,문영명,박영년,백용한,박찬일,한광협 대한소화기학회 2000 대한소화기학회지 Vol.36 No.2

Background/Aims: This study was designed to assess the etiology and characteristics of chronic liver disease among the young male adults. It was also investigated whether grades of activity and status of fibrosis defined by the new histopathologic classification system of chronic hepatitis are related with alanine aminotransferase (ALT) level and HBeAg status in HBsAg-positive case. Methods: Peritoneoscopic findings, clinical features and histopathologic features of liver were investigated for 140 young men who received liver biopsy for military medical certificate from January 1994 to December 1997. These features were evaluated according to the grade and stage of chronic hepatitis. Results: In Korea, hepatitis B virus was the main cause of chronic hepatitis (87.7%) in young male adults and the infection of hepatitis C virus was rare (1.4%). Among HBsAg-positive cases with normal ALT level, 82.2% of them revealed chronic liver disease, and 48.3% of them showed chronic active hepatitis/cirrhosis in biopsy specimens. The grade of chronic hepatitis showed weak correlation with ALT level and the stage did not. There was no significant difference in the grade and stage of chronic hepatitis according to the serum HBeAg status. Conclusions: The most common cause of chronic liver disease in Korean young male adults was hepatitis B virus, and most (92.6%) of HBsAg-positive cases were proved to have chronic liver diseases histologically, regardless of the serum ALT level. According to new histopathologic classification system of chronic hepatitis, serum ALT level correlated with necroinflammatory activity of chronic hepatitis B, but not with fibrosis in HBsAg-positive cases.

Pathologic factor

Young Nyun Park 대한외과학회 2010 대한외과학회 학술대회 초록집 Vol.2010 No.11