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이정근,황병남,최은주,김용빈 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.4
Cleft lip and palate is one of the congenital anomalies which need comprehensive and multidisciplinary treatment plan because 1) oral cavity is an important organ with masticatory function as a start of digestive tract, 2) anatomic symmetry and balance is esthetically important in midfacial area, and 3) it is also important to prevent psycho-social problems by adequate restoration of normal facial appearance. There are many different protocols in the treatment of cleft lip and palate, but our department has adopted and modified the Z□rich protocol, as published in the Journal of Korean Cleft Lip and Palate Association in 1998. The first challenge is feeding. Type of feeding aid ranges from simple obturators to active orthopedic appliances. In our department we use passive-type plate made up of soft and hard acrylic resin which permits normal maxillary growth. We use Millard's method to restore normal appearance and function of unilateral complete cleft lip. In consideration of both maxillary growth and phonetic problems, we first close soft palate at 18 months of age and delay the hard palate palatoplasty until 4 to 5 years of age. When soft palate is closed, posterior third of the hard palate is intentionally not denuded to allow normal maxillary growth. In hard palate palatoplasty the mucoperiosteum of affected site is not mobilized to permit residual growth of the maxilla. We have treated a patient with unilateral complete cleft lip and palate by Ajou protocol, which is a kind of modified Z□rich protocol. It is as follows: Infantile orthopedics with passive-type plate such as Hotz plate, cheiloplasty with Millard's rotation-advancement flap, and two stage palatoplasty. It is followed by orthodontic treatment and secondary osteoplasty to augment cleft alveolus, orthognathic surgery, and finally rehabilitation with conventional prosthodontic treatment or implant installation. The result was good up to now, but we are later to investigate the final result with longitudinal follow-up study according to master plan by Ajou protocol.
전진 이부성형술을 동반한 하악지 사상분할골절단술에서 경조직 변화와 관련된 연조직 변화에 관한 연구
황병남,이승훈,이정근,최은주 大韓顎顔面成形再建外科學會 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.1
Purpose : The purpose of this study is to setup a standard treatment protocol in surgical correction of skeletal malocclusion with Angle Class III patients. We asessed the soft tissue changes according to skeletal changes of patients who undergone orthognathic surgery with bilateral split sagittal ramus osteotomy (BSSRO) and advancing genioplasty. Materials & Methods : The soft tissue change of 9 skeletal Class III patients was assessed after BSSRO and advancing genioplasty. The patient group was Class III who was surgically treated by BSSRO & advancing genioplasty. The average follow up period is 13 months with range of 6 and 30 months. All patients have undergone preoperative and postoperative orthodontic treatment. The assessment was devided into two groups. One was antero-posterior relationship and the other was vertical relationship of dimensional changes of soft tissue after orthognathic surgery. Results : In antero-posterior dimensional changes after surgery, the percentage of soft tissue change in comparison to hard tissue was 89%. Vertical ratio after surgery, 86% soft tissue changes were assessed.
Lee, Eun Zoo,Lee, Sun Uk,Heo, Nam-Su,Stucky, Galen D.,Jun, Young-Si,Hong, Won Hi The Royal Society of Chemistry 2012 Chemical communications Vol.48 No.33
<P>A turn-on fluorescence sensor, Cu<SUP>2+</SUP>–c-mpg-C<SUB>3</SUB>N<SUB>4</SUB>, was developed for detection of CN<SUP>−</SUP> in aqueous solution by simply mixing cubic mesoporous graphitic carbon nitride (c-mpg-C<SUB>3</SUB>N<SUB>4</SUB>) and aqueous solution of Cu(NO<SUB>3</SUB>)<SUB>2</SUB>. The highly sensitive detection of CN<SUP>−</SUP> with a detection limit of 80 nM is not only possible in aqueous solution but also in human blood serum.</P> <P>Graphic Abstract</P><P>A turn-on fluorescence sensor, Cu<SUP>2+</SUP>–c-mpg-C<SUB>3</SUB>N<SUB>4</SUB>, was developed for detection of CN<SUP>−</SUP> in aqueous solution by simply mixing cubic mesoporous graphitic carbon nitride (c-mpg-C<SUB>3</SUB>N<SUB>4</SUB>) and aqueous solution of Cu(NO<SUB>3</SUB>)<SUB>2</SUB>. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c2cc17909a'> </P>
최은혁(Eun-Hyeok Choi),이상호(Sang-Ho Lee),박숭규(Sung-Gyu Park),박광서(Kwang-Seo Park),김이국(Lee-Kook Kim),박원주(Won-Zoo Park),이광식(Kwang-Sik Lee) 한국조명·전기설비학회 2010 한국조명·전기설비학회 학술대회논문집 Vol.2010 No.5월
With the improvement of industrial society, the high quality electrical energy, simplification of operation and maintenance, ensuring reliability and safely are being required. This paper reviews a basic data of the surface discharge characteristics for teflon resin in not only pure N₂, N₂:O₂ mixture gas and Dry-Air as being focused on environmentally friendly insulating Gas also SF?. Used electrodes are Needle-Plane. We can find it, surface discharge voltages.
최은혁(Eun-Hyuck Choi),이재학(Jae-Hak Lee),박광서(Kwang-Seo Park),김종환(Jong-Whan Kim),김이국(Lee-Kook Kim),박원주(Won-Zoo Park),이광식(Kwang-Sik Lee) 한국조명·전기설비학회 2005 한국조명·전기설비학회 학술대회논문집 Vol.2005 No.5월
In this paper the experiments of insulation characteristics by temperature change of SF? gas and liquid SF? in model GIS(Gas Insulated Switchgear) were described. From this results, the breakdown voltage was increased with a drop of temperature and an increase of the inner pressure in model GIS. The ability of insulation in liquid SF? was higher than that of the highly pressurized SF? gas. A liquid SF? discharge characteristics was caused by bubble formed evaporation of liquid SF? and bubble caused by high electric emission. It is considered that these result are fundamental data for electric insulation design of superconductor and cryogenic application machinery which will be studied and developed in the future.
인구역학적 요인에 따른 한국인의 사시 및 눈떨림 유병률 조사: 제5기 국민건강영양조사 자료
이지은(Ji Eun Lee),김창주(Chang Zoo Kim),남기엽(Ki Yup Nam),이승욱(Seung Uk Lee),이상준(Sang Joon Lee) 대한안과학회 2017 대한안과학회지 Vol.58 No.11
목적: 사시 질환은 어느 연령대에서도 발병 가능하며 다양한 기능적 또는 비기능적 안과적 문제를 발생시킬 수 있다. 인구 기반 연구를 통해 다양한 인구역학적 요인에 따른 한국의 사시, 눈떨림 등을 포함한 사시 질환의 유병률을 확인하고자 한다. 대상과 방법: 2008년 7월부터 2011년 12월까지 실시된 국민건강영양조사(National Health and Nutrition Examination Survey, n=30,538)의 자료를 사용하여 분석하였다. 사시와 눈떨림의 유병률을 파악하고, 관련된 인구역학적 요인에 대해 평가하였다. 결과: 3세 이상에서 사시 및 눈떨림 환자의 전체 유병률은 1.4 ± 0.1% (95% confidence interval [CI] 1.3-1.6%, 남자 1.5 ± 0.1%, 여자 1.3 ± 0.1%)였다. 외사시(15프리즘디옵터 이상), 내사시(10프리즘디옵터 이상), 수직 편위, 기타 복잡한 사시 및 눈떨림의 유병률은 각각 1.0%, 0.2%, 0.2%, 0.1% 및 0.1%였다. 유병률은 6–15세 연령층에서 가장 높았으며(1.9 ± 0.3%), 40–49세(0.8 ± 0.1%)에서 가장 낮았다(p=0.005). 성별, 지역, 주거 지역, 가구 소득, 교육 수준 및 직업과 관련하여 통계적으로 유의한 차이는 없었다. 결론: 국민건강영양조사 자료를 분석한 결과 한국의 인구역학적 요인에 따른 사시 질환의 유병률은 연령 집단을 제외하고는 통계적으로 유의하지 않았다. 향후 사시 질환의 유병률과 관련된 추가적인 다른 보건 및 사회적 지표들의 검토가 유병률 연구에 도움이 될것으로 판단된다. Purpose: Strabismus affects any age and represents various functional or non-functional eye problems. This population-based study was conducted to determine the prevalence of strabismus and nystagmus in South Korea according to various sociodemographic factors. Methods: We acquired data from the Korea National Health and Nutrition Examination Survey, a nation-wide cross-sectional survey and examinations of the non-institutionalized civilian population in South Korea (n = 30,538), conducted from July 2008 to December 2011. The prevalence of strabismus and nystagmus were verified, and associated sociodemographic factors was evaluated. Results: The overall prevalence of strabismic disorder in participants over 3 years of age was 1.4 ± 0.1% (95% confidence interval [CI] 1.3-1.6%; 1.5 ± 0.1% in males, 1.3 ± 0.1% in females). The prevalence of exodeviation (15 or more prism diopters), esodeviation (10 or more prism diopters), vertical deviation, and other complicated strabismus and nystagmus was 1.0%, 0.2%, 0.2%, 0.1% and 0.1% respectively. The prevalence was highest in the 6 to 15-year age group (1.9 ± 0.3%), and lowest in the 40 to 49 years age group (0.8 ± 0.1%) (p = 0.005). There were no statistically significant differences for gender, region, residential area, household income, educational level and occupation. Conclusions: This nation-wide epidemiologic study demonstrated that the prevalence of strabismus and nystagmus according to various sociodemographic factors in South Korea was not statistically significant except for age group. Further investigations are required based on more surveys to better recognize the etiologic or risk factors that may be related to strabismus and nystagmus. J Korean Ophthalmol Soc 2017;58(11):1260-1268
Sang Poong Lee(李相豊),Sam Eun Kim(金三銀),Kye Myeong Kim(金啓明),Sang Mong Lee(李相夢),Ho Zoo Lee(李浩柱),Yeong Il Lee(李榮日) 한국육종학회 1989 한국육종학회지 Vol.21 No.3
Sex discrimination is an indispensable and labor-demanding process for production of hybrid eggs in the silkworm Bombyx mori L. Cocoon color character can be effectively applied for sexing if the yellow blood gene Y(Ⅱ-25.6) be artificially translocated onto W chromosome to result in sex-limited trait. A total of 8,618 RF₂ batches had been screened for W-translocation type during the 7-year period of 1982 through 1988. Sex-linked oily gene(Zod) had been used for early screening of female larvae in the RF₂ generation. A single egg-laying of translocation type had been identified from 4th-day female pupae under 6 Krad irradiation in 1988. The frequeneies of the unexpected individuals in both sexes were 7.6% in RF₂ and 6.3±2.4% in RF₃, the variation of which reflects the unstable nature of the translocated chromosome fragment in each genetic background. If the translocation be stabilized through genetic manipulation, parent inbreds be identified for superior hybrids and other economic characters be improved, the translocation type can be utilized for sex discrimination (yellow cocoon for female and white for male) of the inbred to save sexing labor for hybrid egg production.