야뇨증 환아들의 심리사회적 특성에 대한 다기관 연구 : 행동 및 정서 문제를 중심으로

조수철,김재원,신민섭,황준원,한상원,박관현,이상돈,김경도,김건석,서홍진,이유식,정재용,김영균,문두건,남궁미경,한창희,조원열,김영식,배기수,이종국,정우영,신의진 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.6

Objectives : The aim of this study was to examine the behavioral and emotional problems associated with nocturnal enuresis in Korean children. Methods : Three hundred eighteen children with nocturnal enuresis, together with their parents, completed the Child Behavior Checklist (CBCL), Disruptive Behavior Disorder Scale according to DSM-IV (DBDS), Children's Depression Inventory (CDI), State-Trait Anxiety Inventory for Children (STAIC), and Piers-Harris Children's Self-Concept Scale (PHCSC). Ninety-three normal students were selected as the control group. Results : Compared to the normal control group, the mean scores with regard to the withdrawn, social problems, attention problems, delinquent behavior, aggressive behavior, externalizing problems and total problems profiles were significantly higher in the nocturnal enuresis group according to the CBCL results. The nocturnal enuresis group also scored significantly higher in the ADHD and ODD profiles of the DBDS. The nocturnal enuresis group was more depressed and anxious than the control group according to the results of the CDI and STAI. The mean score of the PHCSC was significantly lower in the nocturnal enuresis group when compared to the normal control group. Conclusion : The results of this study suggest that children with nocturnal enuresis in Korea have clinically relevant behavioral and emotional problems. The findings support the link between nocturnal enuresis and psychopathology in Korean children.

농작물 해충 및 진균류 방제를 위한 방선균의 분리 및 동정

이은정,강경돈,황교열,김두호,김신덕,성수일 한국잠사학회 1998 한국잠사곤충학회지 Vol.40 No.1

Twenty seven out of ca. 5,000 actinomycete strains, which were isolated from soil collected throughout the country, showed antimicrobial effects against fungi, Rhizopus stronifer (ATCC6227a), Rhizoctonia solani (KCCM 11271) and yeast, Candida albicans(ATCC10231). From these antifungal microorganisms, we further selected seven strains which seemed to produce insecticidal substances with in vivo test, using silkworm, Bombyx mori and beet armyworm, Spodoptera exigua. Morphological and biochemical experiments revealed that three strains out of seven were streptomyces. Further investigations on the physical and chemical properties of these antifungal and insecticidal substances are now in progress.

성견에서 수직적 골결손부에 골이식후 교정력 적용시기에 따른 치주조직의 반응

이상열,황현식,김경근 전남대학교 치과대학 2000 전남치대논문집 Vol.12 No.1

The aim of this study was to investigate the periodontal response according to the timing of orthodontic force application after bone graft into the angular bony defect. Nine dogs were divided into three groups, 2, 4, and 6 weeks, according to the timing of orthodontic force application after bone graft. Periodontal angular bony defects were created surgically at the distal aspect of both maxillary third incisors. Two weeks later, flap operation was performed to eliminate inflammation and reference notch was made on the root surface at the level of the bottom of each defect. Demineralized freeze-dried bone was implanted on the left side whereas only debridement was done on the other side. Experimental tooth movement was executed during 8 weeks on both graft and non-graft sides. After 2 weeks of retention period, animals were sacrificed for histologic specimens. The results were obtained as follows: 1. New bone formation was more pronounced in the graft side than in the non-graft side in all experimental animals. 2. In the 6-week group, new bone and cementum formation was observed in more than half from the notch to the cemento-enamel junction, and the zone of connective tissue attachment was found without apical migration of junctional epithelium. 3. In the 4-week group, the amount of new bone formation was smaller than in the 6-week group whereas the overall remodeling pattern was similar. 4. New bone formation was confined to around the notch and the junctional epithelium migrated apically to the level of the notch with no connective tissue attachment and cementum formation in the 2-week group. The results of the present study suggest that periodontal response may be influenced by the timing of orthodontic force application after bone graft into angular bony defect.

C54x DSK를 이용한 디지털 오실로스코프의 구현

이경화,정혜윤,신건일,권호열 江原大學校 産業技術硏究所 1997 産業技術硏究 Vol.17 No.-

In this paper, a digital oscilloscope is implemented using a C54x DSk with PC. This digital oscilloscope has some basic measurement functions with a capability to change Volt/Div and Time/Div as well as to set appropriate trigger level automatically. Also several stored waveforms and current input waveform can be displayed simultaneously. Experimental results show that our approaches are versatile and cost-effective particularly in educational installment.

우심방과 우심실의 거대 심장 혈관종 1예

김제열,조상호,김건일,허경림,김현숙,조구영,최영진,이원용,임종윤 朝鮮大學校 附設 醫學硏究所 2007 The Medical Journal of Chosun University Vol.32 No.2

Cardiac tumors, especially the primary tumors involving any part of the heart are extremely rare and its relative incidence has been reported to be approximately 0.02%. We report a patient with huge cardiac hemangioma who complained of shortness of breath, general weakness, and dizziness, Imaging study by echocardiography and computed tomography of thorax revealed a huge lobulating mass like a bunch of grapes in the right chamber of heart. The surgical exploration of thorax was performed and a histological diagnosis of spindle cell hemangioma was obtained by microscopy. The patient was treated by surgical resection of the tumor and doing well after surgery. Our experience indicated that prompt diagnosis and treatment of cardiac hemangioma is imperative for patients' prognosis.

실업계 고등학생의 직업기초능력 향상을 위한 문제중심학습(PBL)의 효과

박동열,이성덕,김종오,조경희,강경심,박윤희,김대영 한국농업교육학회 2006 농업교육과 인적자원개발 Vol.38 No.4

21세기 지식기반사회는 전문지식뿐만 아니라 효율적인 직무 수행에 필요한 의사소통능력, 문제해결능력, 자기관리능력 및 직업의식 등의 직업기초능력이 강조되고 있다. 직업기초능력은 생의 어느 한 시기에 갑자기 이루어지거나 완성되는 l회적인 것이 아니라 개인의 생애단계에 따라 변화하고 발달하는 것이며 취업자뿐만 아니라 진학자에게도 잠재적으로 매우 중요한 요소이므로 실업계 고등학생의 직업기초능력 향상은 중요한 현안이라 할 수 있다. 이 연구는 여러 교수학습유형 중 실업계 고등학생의 직업기초능력 향상에 타당하리라 사료되는 문제 중심학습 모형(Problem-based learning model)을 선정, 이에 기초한 전문교과 수업을 실시하여 실업계 고등학생의 직업기초능력 향상에 기여할 수 있는지 실증적으로 분석하고자 하였다. 연구 목적 달성을 위해 「대학생의 직업기초능력 유형 검사도구(박동열, 2005)」를 실업계 고등학교 전문가 협의회를 통해 수정ㆍ보완, 이를 활용하여 실업계 고등학생의 직업기초능력을 파악하고, 문제중심학습 모형에 따른 실제 전문교과 수업을 통한 실업계 고등학생의 직업기초능력 향상 정도를 알아보기 위하여 농업계열, 공업계열, 상업계열, 가사ㆍ실업계열 4명의 현직 교사가 문제중심학습 수업 매뉴얼에 따라 실제 수업에 적용 하고 그 결과를 분석하였다. 연구 결과 문제중심학습 모형이 실업계 고등학생의 수업만족도에 긍정적인 영향을 끼쳤으며, 문제중심학습 모형에 따른 전문교과 수업을 통해 실업계 고등학생의 모든 영역의 직업기초능력(문제해결 및 발표 능력, 기술활용능력, 자원활용능력, 수리능력, 조직이해능력, 대인관계능력, 자기관리능력)이 향상되었음을 실증적으로 알 수 있었다. The purpose of this research was to analyze the fitness of problem-based learning(PBL) for improving the core competencies of vocational high school students. This study examined the core competencies of vocational high school students by using the advised BARS test for vocational high school. And in order to examine the effectiveness of the courses based on PBL, 4 teachers had taught the designed courses by PBL method during the regular class in vocational high school : agricultural; technical; commercial, home economic high schools. The major findings in this study were as follows: 1) The courses based on PBL had an positive effect on the class satisfaction of vocational High school students. 2) We found out that the courses based on PBL have a positive effect on improving vocational key competencies of Vocational High school students.

糖尿病 集團檢診에 대한 費用效果分析

천병렬,박재용,감신,이경은 大韓産業醫學會 1995 대한직업환경의학회지 Vol.7 No.2

대구 지역의 일개 종합병원에서 실시한 1992년 건강 검진 결과 중, 20세 이상인 성인들을 연구 대상자로 하여 근로자 검진과 공무원 검진 자료에서 당뇨병 집단검진 항목 중 요당, 공복혈당 그리고 식후혈당 검사 결과와 공무원 검진 자료에서 성, 연령, 신장, 그리고 체중에 관한 자료를 수집하여 분석하였다. 당뇨병 집단검진의 효율성을 비용효과분석 기법으로 비교하기 위하여 기존의 근로자 검진 방법과 공무원 검진 방법, 기존의 근로자 검진 방법에서 2차 검사 항목 중 요당 검사를 제외한 대안 (A), 공복혈당검사만 직장에서 실시하는 대한 (B), 식후혈당검사만 직장에서 실시하는 대안 (C), 공복혈당검사를 직장에서 실시하고 음성자에게 식후 혈당검사를 직장에서 실시하는 대안 (D), 식후혈당검사를 직장에서 실시하고 음성자에게 공복혈당검사를 직장에서 실시하는 대안 (E), 그리고 요당검사만 직장에서 실시하는 대안 (F)에 대해 당뇨병 유소견자당 투입 비용을 산출하였다. 각 대안별 유소견자당 투입 비용은 기존 근로자 검진 방법이 37,767원, 기존 공무원 검진 방법이 50,441원, 대안 (A)는 37,433원, 대안 (B)가 27,645원, 그리고 공복혈당 음성일 때 식후혈당 양성인 비율을 2%로 고정한 경우의 대안 (C)가 28,541원, 대안 (D)가 38,458원, 그리고 대안 (E)는 38,488원이었다. 그런데 대안 (F)의 경우 양성예측도가 93%인 경우 유소견당 투입 비용이 18,689원으로 가장 적었지만, 양성예측도가 20%일 때는 88,106원으로 가장 많았다. 양성예측도가 64% 이상일 때 대안 (F)가 가장 비용효과적이었다. 결국 대안 (B)와 대안(F) 둘 중 하나가 가장 효율적인 검진 프로그램으로 생각되며 이는 요당 검사의 양성예측도에 의해 달라질 것이다. To evaluate the efficiency of the diabetes mellitus screening program, the records of screening examinations for general workers and official workers at a general hospital in Taegu city were analysed. Six alternatives of the diabetes mellitus screening program were compared in terms of cost-effectiveness. The screening program I which was already used in the examination for general workers, screening program II for official workers, alternative program (A) which was the same method as screening program I without urine sugar test for the second examination in a hospital, alternative program(B) with the test for fasting blood sugar(FBS) in a worksite, alternative program (C) with the test for postprandial blood sugar(PPBS) in a worksite, alternative program (D) with the first test for FBS and the second test for PPBS of negatives for FBS test in a worksite, alternative program (E) with the first test for PPBS and the second test for FBS of negatives for PPBS test, and alternative program (F) with the test for urine sugar in a worksite. To compare the cost-effectiveness between alternatives, the cost (Won) per positive detected for diabetes mellitus (cost-effectiveness ratio) was calculated. The cost per positive detected was 37,767 Won for screening program I, 50,441 for screening program II, 37,433 for alternative program (A), 27,645 for alternative program (B), and if it was assumed that the positive rate for negatives of FBS would be 2.0%, 28,541 for alternative program (C), 38,458 for alternative program (D), 38,488 for alternative program (E). However, that for alternative program (F) was varied with the positive predictive value(PPV) of urine sugar test for diabetes. The cost per positive detected was lowest(18,689 Won) when PPV when PPV was 93%, whereas, highest (88,106) when PPV was 20%. The critical value of PPV was 64%. The alternative program (F) was most efficient when PPV was 64% or more. Considering the prevalence for diabetes mellitus, PPV for urine sugar test, and feasibility of screening examination, alternative program (B) will be proved as the most efficient screening program. In conclusion, either program(B) or program(F) will be the most efficient method for screening a large population depending on the positive predictive value of fasting urine sugar test.

하수관로 연결 돌출부 절단기 유닛 개발

김재열,김영석,안재신,곽이구,송경석,이창선 한국공작기계학회 2003 한국공작기계학회 춘계학술대회논문집 Vol.2003 No.-

The issue with the drainpipe now a day is that they are laid underground. Causing us to perform additional work to repair, such as digging up the ground and peeling off the insulator that surrounds the pipe. And such series works are difficult that concession appears from government and municipal office. However, if we can save time and money. Performance of piping robot that we are studied in existing session through fixing unit and improvement of cutting byte shorten and wished to heighten work efficiency. This is why we are trying to develop a unit that can cut up the projecting parts which connects with the interior part of the drainpipes.

다이아몬드상 카본 박막의 레이저공정 변수에 따른 상변이와 내마모성 특성변화

심경석,차금환,이상렬,김대은 연세대학교 산업기술연구소 1999 논문집 Vol.31 No.2

Diamond-like carbon(DLC) thin films have been fabricated by pulsed laser deposition method with various deposition parameters. The characterization of fabricated thin films was performed depending on the deposition parameters. As the kinetic energy provided by deposition temperature and the laser energy density were increased, the film showed graphite properties. Structural properties of the films were investigated by Raman spectroscopy. The growth energy should be optimized to fabricate high quality DLC thin films. DLC films showed high hardness and their friction coefficients were measured to be about 0.2 regardless of the load of the ball pin.

TiO₂-ZrO₂와 γ-Al₂O₃에 담지된 Co-Mo 촉매의 특성비교 및 수첨탈황반응에 관한 연구

김경림,고을석,박해경,이재열 연세대학교 대학원 1993 延世論叢 Vol.29 No.1

Hydrodesulfurization of thiophene were studied over Co- Mo/TiO2- ZrO2 and Co-Mo/γ-Al2O3 catalysts. Under the experimental conditions of this study, the surface area, acidity and acid strength of TiO2- ZrO2 support were similar to those of γ-Al2O3 support. Characteristics of Co-Mo/TiO2-ZrO2 catalyst were similar to that of Co-Mo/γ-Al2O3 Catalyst, too. Under the atmospheric pressure, thiophene conversion increased with increasing temperature over both Co-Mo/TiO2-ZrO2 and Co-Mo/γ-Al2O3 catalysts, and the increasing rate of thiophene conversion over Co-Mo/TiO2-ZrO2 catalyst was higher than that of Co-Mo/γ-Al2O3 catalyst with increasing temperature.