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 Results : Compared to the normal control group, the mean scores with regard to the withdrawn, social problems, attention problems, delinquent behavior, aggressive behavior, externalizing problems and total problems profiles were significantly higher in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.

흉골 골절의 의의에 관한 임상적 연구

원형섭,황성연,박정배,이준형,박철완,이근 대한응급의학회 1996 대한응급의학회지 Vol.7 No.2

It has been known that sternal fracture increases the risk of potentially life-threatening injuries, such as myocardial, pulmonary, and thoracic vascular injuries, and it has 25% to 45% of mortality, primarily resulting from these underlying injuries. The authors reviewed retrospectively the medical records and radiographic findings of the patients who admitted with sternal fracture at Chung Ang Gil Hospital from 1 June 1994 to 31 December 1995 to evaluate the significance and clinical course of sternal fracture. The results were followings: 1. The male to female ratio was 3:2 and the mean age was 43.1 and 45.4 years old in male and female, respectively. 2. Motor vehicle occupant accident was the most common cause of sternal fracture. 3. Of 33 cases, there was no death, but common associated injuries which were rib fracture, hemothorax, lung contusion, vertebral fracture, penumothorax, long bone fracture, myocardial contusion, flail chest, facial chest, facial bone fracture, and pericardial effusion, in order. 4. The clinical course of sternal fracture was determined primarily by associated injuries except for communited sternal fracture. 5. The patients with isolated sternal fracture, who had an otherwise normal chest x-ray, normal electrocardiogram, no other significant associated injuries and are hemodynamically stable, had a benign clinical course.

SCF를 이용한 시간지연 회로의 설계 및 제작기술 개발

황준원,박종연,장목순 江原大學校 産業技術硏究所 1996 産業技術硏究 Vol.16 No.-

This paper deals with the tapped time delay circuit with SCF(Swiched Capacitor Filters). This filter is composed fo lossless discrete integrator and the SCF has 2-phase clocks. Experimental results have shown that telephone signals (0~4kHz) could be delayed in the range of sampling frequency 80kHz.But above the range, operational amplifiers and analog switchs have been difficult in the normal operating condition

치은연하 파절로 치조골 소실을 동반한 상악측절치에서 orthodontic extrusive remodeling후 임플란트 식립을 통한 심미수복 : 증례보고

황수연,손원준,한영철,배광식,백승호,이우철,금기연 大韓齒科保存學會 2008 Restorative Dentistry & Endodontics Vol.33 No.1

심미적으로 중요한 전치부에서 단일 치아 임플란트를 이용한 보철수복은 임상의에게 새로운 도전과제 중의 하나가 되었다. 그러나 전치부에서 single-unit implant는 식립할 부위의 치조골 상태가 양호해야 하는데 치은연하 파절로 인해 치아 주위에 골 손실이 있는 경우 immediate implant는 심미적으로 문제를 야기할 수 있다. 따라서 본 증례는 "orthodontic extrusive remodeling"을 통해 파절치와 주위 조직을 교정적으로 정출시켜 임플란트 식립을 위한 연조직과 경조직을 증대시킨 후 임플란트 식립을 통해 상악측절치에서 성공적인 심미수복을 이룬 증례에 관한 것이다. The treatment of esthetic areas with single-tooth implants represents a new challenge for the clinician. In 1993, a modification of the forced eruption technique, called "orthodontic extrusive remodelling" was proposed as a way to augment both soft- and hard-tissue profiles at potential implant sites. This case report describes augmentation of the coronal soft and hard tissues around a fractured maxillary lateral incisor associated with alveolar bone loss, which was achieved by forced orthodontic extrusion before implant placement. Through these procedures we could reconstruct esthetics and function in a hopeless tooth diagnosed with subgingival root fracture by trauma.

말초혈액 내 백혈구수와 대사증후군과의 연관성

황상태,김범수,황상준,서정열,김병진,이원영,성기철,강진호,김선우,이만호,박정로 대한순환기학회 2004 Korean Circulation Journal Vol.34 No.3

생활치 미백제가 우치 법랑질의 투명도에 미치는 영향

김동준,김영주,김학근,박은종,서은주,황윤찬,오원만,황인남 大韓齒科保存學會 2005 Restorative Dentistry & Endodontics Vol.30 No.3

본 연구에서는 현재 임상에서 home bleaching을 위해 사용되고 있는 표백 재료들이 치아 법랑질의 투명도에 어떠한 변화를 일으키는지 고찰해 보고자 시행하였다. 실험 대상으로는 하루 전 발거한 우치 (bovine tooth)를 사용하였다. 치아의 순면에 수직되게 다이아몬드 드릴을 이용해 수주 하에서 직경 6 mm의 원통형 치아 시편을 만들어 순면이 노출된 상태로 투명한 아크릭 레진에 포매한 후, low speed diamond saw (Isomat, Buehler Co., USA)를 사용하여 1.2 mm 두께로 절단하였다. 절단된 시편은 순면을 먼저 편평하게 연마하고,절단된 면을 연마하여 두께 1 mm의 시편을 완성하였다. 완성된 시편(우치 25개)을 무작위로 추출하여 3개의 그룹으로 나누고 나머지는 대조군으로 하였다. Opalescence (10% carbamide peroxide, Ultradent, Milford, USA), Rembrandt (10% carbamide peroxide, DenMat, USA) 및 Opalescence F(15% carbamide peroxide with fluoride, Ultradent)를 시편의 순면에 1주일 동안 적용 (표백제는 24시간마다 교체)하였고, 설측면은 증류수를 적신 거즈에 접촉된 상태로 보관하였다 표백제를 적용하기 전과 적용 3, 5, 7일째에 시편의 삼자극치 X, Y, Z 값을 색채색차계 (Color & Color Differencemeter, Model TC-6FX, Tokyo Denshoku Co., Japan)로 백색 배경판과 흑색 배경판 상에서 측정하였다 백색 배경판과 흑색 배경판 상에서 측정된 Y값의 평균값을 이용해 contrast ratio를 계산하였다 얻어진 값을 One Way Repeated Measured ANOVA를 이용하여 통계 처리한 결과 10% Opalescence처치군, 15% Opalescence-F처치군 및 대조군에서는 통계적으로 유의할만한 증감을 보이지 않았고, Rembrandt처치군에서는 Contrast ratio가 증가하였다 (p < 0.01) . This study was done to evaluate whether vital bleaching agents could influence on the translucency of the bovine enamel. The anterior bovine teeth that were extracted one day before and without any gross discoloration were obtained and then were preserved in physiologic saline. 6 mm cylindrical tooth specimens were fabricated with diamond puncher perpendicularly on labial surface of bovine tooth. After embedded in transparent acrylic resin with labial surface being exposed, they were cut to a thickness of 1.2 mm with low speed diamond saw (Isomat, Buehler Co., Lake Bluff, IL, USA). They were smoothly ground to 1 mm thickness of enamel with sandpaper. 24 specimens were randomly divided into 3 groups and control group respectively. Opalescence (10% carbamide peroxide, Ultradent, South Jordan, USA), Rembrandt (10% carbamide peroxide, DenMat, USA) and Opalescence F (15% carbamide peroxide with fluoride, Ultradent, USA) were applied on labial sides of the bovine enamel for 7 days (bleaching agents were reapplied every 24 hours) and the opposite surface was contacted to cotton that soaked in distilled water. The control group was soaked in distilled water. Three stimulus value X, Y and Z were evaluated with colorimeter (Color ' Color Differencerneter, Model TC-6FX, Tokyo Denshoku Co., Japan) on the labial surface of all specimen three times on white and black background plate before the bleaching agents were applied and on 3rd, 5th and 7th day after applied. The degree of translucency was normally assessed by measuring the inverse property, opacity (contrast ratio). 10% Opalescence, 15% Opalescence-F, and control group showed no significant variation in the translucency of bovine enamel, However Rembrandt decreased the translucency of it (p < 0.01).

상아세관의 주행방향에 따른 상아질 접착제의 침투양상에 대한 공초점레이저주사현미경 연구

김동준,황윤찬,김선호,오원만,황인남 大韓齒科保存學會 2003 Restorative Dentistry & Endodontics Vol.28 No.5

The purpose of this study was to evaluate the penetration pattern of dentin adhesives according to the orientation of dentinal tubules with confocal laser scanning microscopy. Specimens having perpendicular. parallel and oblique surface to dentinal tubules were fabricated. The primer of dentin adhesives (ALL BOND 2, CLEARFIL SE BOND and PQ1) was mixed with fluorescent material. rhodamine B isothio cyanate (Aldrich Cherm. CO., Milw., USA), It was applied to the specimens according to the instructions of manufactures. The specimens were covered with composite resin (Estelite, shade A2) and then cut to a thickness of 500 ㎛ with low speed saw (Isomet, Buehler, USA). The adhesive pattern of dentin adhesives were observed by fluorescence image using confocal laser scanning microscopy. The results were as follows. 1. For the groups with tubules perpendicular to bonded surface, funnel shape of resin tag was observed in all specimen. However. resin tags were more prominent in phosphoric acid etching system (ALL BOND 2 and PQ1) than self etching system (CLEARFIL SE BOND). 2. For the groups with tubules parallel to bonded surface. rhodamine labeled primer penetrated into peritubular dentin parallel to the orientation of dentinal tubules. But rhodamine labeled primer of PQ1 diffused more radially into surrounding intertubular dentin than other dentin adhesive systems. 3. For the groups with tubules oblique to bonded surface. resin tags appeared irregular and discontinuous. But they penetrated deeper into dentinal tubules than other groups.

상아세관의 주행방향에 따른 상아질 접착제의 침투양상에 대한 공초점레이저주사현미경적 연구

김동준,황윤찬,김선호,오원만,황인남 전남대학교 치의학연구소 2003 구강과학 Vol.15 No.1

The purpose of this study was to evaluate the penetration pattern of dentin adhesives according to the orientation of dentinal tubules with confocal laser scanning microscopy Specimens having perpendicular, parallel and oblique surface to dentinal tubules were fabricated. The primer of dentin adhesives (ALL BOND�2, CLEARFIL^(TM) SE BOND and PQ1) was mixed with fluorescent material, rhodamine B isothiocyanate (Aldrich Chem. CO., Milw., USA). It was applied to the specimens according to the instructions of manufactures. The specimens were covered with composite resin (Estelite, shade A2) and then cut to a thickness of 500 ㎛ with low speed saw (Isomet^(TM), Buehler, USA). The adhesive pattern of dentin adhesives were observed by fluorescence imaging using confocal laser scanning microscopy. The results were as follows. 1. For the groups with tubules perpendicular to bonded surface, funnel shape of resin tag was observed in all specimen. However, resin tags were more prominent in phosphoric acid etching system (ALL BOND� 2 and PQ1) than self etching system (CLEARFIL^(TM) SE BOND). 2. For the groups with tubules parallel to bonded surface, rhodamine-labeled primer penetrated into peritubular dentin parallel to the orientation of dentinal tubules. But rhodamine-labeled primer of PQ1 diffused more radially into surrounding intertubular dentin than other dentin adhesive systems. 3. For the groups with tubules oblique to bonded surface, resin tags appeared irregular and discontinuous. But they penetrated deeper into dentinal tubules than other groups.

9번 염색체 전위를 지닌 환아들의 정신과적 특성 : 예비적 연구

김재원,이준영,황준원,홍강의 대한소아청소년정신의학회 2001 소아청소년정신의학 Vol.12 No.1

본 연구는 이전의 연구들이 9번 염색체의 전위와 연관된 정신과적 특성이나 발달학적인 측면에 다루지 않았던 것에 주목, 정신과적인 문제 중 언어나 운동 발달의 지연, 지능저하, 성장지연 등과 같은 아동기의 발달학적인 문제와 행동문제에 초점을 맞추어 9번 염색체의 전위와 어떤 연관성이 있는지의 여부에 대해 알아보기로 하였다. 방법: 1)1984년부터 2000년까지 서울대학병원 인구의학연구소에 유전학적 검사가 의뢰된 환자들 중 9번 염 색체 전위로 결과가 나온 증례들을 수집하였다. 검사를 의뢰한 진료과, 의뢰한 이유 등에 대한 정보를 얻었다. 2)9번 염색체 전위를 지닌 소아 청소년 12명을 환아군으로 선정하고 성별, 나이 등이 일치하는 학생 45명을 대조군으로 선정하여 부모에게 과거력조사설문지와 아동청소년 행동평가척도(Korean Child Bhavior Check List, 이하 K-CBCL로 약칭)를 배부, 작성하도록 하였다. 결과: 1)9번 염색체 전위로 결과가 나온 165례 중 검사 의뢰 진료과의 분포는 산부인과(47.3%), 소아과(23.6%), 소아정신과(17.0%)의 순으로 나타났고, 소아과와 소아정신과에서 검사가 의뢰된 경우(67례), 의뢰한 주 이유는 지능저하(35.8%), 언어 또는 운동발달지연(31.3%), Fragile X 증후군 의심(23.9%), 성장지연(20.9%)의 순이었다. 2)K-CBCL 결과상 사회적 미성숙 척도에서 임상범위에 해당된 비율이 환아군에서 대조군에 비해 유의하게 높았고, 환아군이 대조군보다 언어나 운동 발달 영역에서 발달이 늦는 것으로 나타났다. 결론: 본 연구는 9번 염색체의 전위와 연관된 발달학적인 측면을 다룬 최초의 연구로 아동기의 발달학적인 문제나 행동문제에 있어서 연관성을 시사하는 결과를 보였다. 정신과적인 문제와 연관된 유전자의 다양한 표현형을 밝혀 나가는 토대가 되기를 기대해 본다. 중심단어 : 9번 염색체 전위 ㆍ 발달 ㆍ 행동문제. Objectives : Few studies have examined the psychiatric properties or child developmental problems associated with inversion of chromosome 9. The purpose of this study is to examine the psychiatric properties of child patients who have inversion of chromosome 9, focused on behavioral problems and child developmental problems like motor or language developmental delay, intellectual impairment, and growth retardation. Methods . 1)The authors examined the cases referred for cytogenetic examination from 1984 to 2000 at Seoul National University Hospital in Korea. The cases with the examination result of inversion of chromosome 9 were collected and informations abort the departments which referred and the main reasons for referral were also checked. 2)12 child subjects with inversion of chromosome 9 and their parents underwent psychiatric interview and parent questionnaire (child and adolescent past history questionnare, CBCL). 45 normal students whose sex and age were matched to patients were selected as a control group. Results : 1)There were 165 cases of inversion of chromosome 9. The major departments which referred were Obstetrics and Gynecology (47.3%), Pediatrics(23.6%) and Child and Adolescent Psychiatry (17.0%). The major reasons for referral from the Pediatrics and the Child and Adolescent Psychiatry department (67 cases total) were intellectual impairment(35.8%), language or motor developmental delay (31.3%), suspected Fragile X syndrome (23.9%), and growth retardation (20.9%). 2)Compared to normal control group, the rate to be included in the clinical range with regard to the social problems profile was higher in patient group according to the CBCL results. The patient group had language and motor developmental delay. Conclusion : There is a possibility of inversion of chromosome 9 to be associated with child devel-opmental problems or behavioral problems. This study is the first approach to evaluate the developmental aspects associated with inversion of chromosome 9. KEY WORDS : Inversion of chromosome 9 ㆍ Development ㆍ Behavioral problems.

방전관용 전극개발 및 특성에 관한 연구

안성환,황동원,최준영,송시준,전용우,박원주,이광식 영남대학교 공업기술연구소 2001 工業技術硏究所論文集 Vol.29 No.1

This paper describes the development of sputtered tungsten electrode for discharge tube by making use of Sputtering method using plasma. The Xe discharge tube was designed and fabricated by using sputtered tungsten electrode, and the ICCD(Intensified Charged Coupled Device) and monochromator were used in order to observe the discharge image distribution and to measure the signal intensity. As a result, the emission light form the electrode was spreaded almost uniformly over a wide wavelength band, and the discharge image distribution and the signal intensity show quite a uniform distribution. The emission light from the Xe discharge tube was peaked at 488[nm] and 648[nm].