산업보건관리자를 위한 소음성 난청 예방지침서의 개발

이원철,유경혜,장성실,이세훈,구정완,김현욱,노영만,이경재,김형아 가톨릭 대학 산업의학 쎈타 산업의학연구소 1996 韓國의 産業醫學 Vol.35 No.1

Occupational hearing loss became the leading occupational disease by constioution 56% of all work-related diseases in Korea. However, the prevalance rates showed wide variations among the specific medical examination providers and were very low(0.8-1.4%) compared with those 8.4% in Japan. The sources of these variations was regarded in the preview study as 1) Employee audometric estings were primarily conducted by nurses and nurse-aids who had no formal training for audiometry; 2) althought audiometric testing equipment used by the spedific medical examination providers, it should be periodically calibrated, a significant number of them were not properly calibrated : 3) Initial audiometric testings were conducted at any available spaces in workplace or at the testing room without considering bachground noise level. One of solutions that can be done for sloving surrent noise related problems is to provide a noise related manual for the occupational health managers including doctors, nurses and hyginests. This study was done to provide such a manual. The main core of the manual was hearing conservation program. And the contents of the manual was the same as the main frame of hearing conservation program such as noise survey, provided of the diagram showing the core contents of each factor of the hearing conservation program. Hopefully, this manual will be the references of the standardized performances of the specific medical examination providers.

저체중 또는 과체중 청소년에서 캠프 프로그램을 이용한 영양 교육효과에 관한 연구

성미경,승정자,류화춘,박재년,박동연,최미경,조경옥,최선혜,이윤신,김유경,이은주 대한지역사회영양학회 2003 대한지역사회영양학회지 Vol.8 No.4

This study was performed to evaluate the effectiveness of a nutrition education program developed for nutritionally imbalanced adolescents. A summer nutrition camp was held for 23 overweight and 16 underweight subjects. Its effectiveness with regard to was evaluated at the end of the camp and 6 months later. Nutrition knowledge, nutritional attitude, food behavior, nutrient intake, exercise habit and ideal body figures desired by the subjects. The results showed significantly higher nutrition knowledge scores at the end of the camp as compared to those obtained prior to the camp program, and these scores were maintained for at least six months. Nutrition attitude scores also improved after the education program, and these improved scores also lasted for 6 months. However, the food behavior scores measured 6 months after the education program were not significantly different from those obtained prior to the camp. Also, the exercise habit, the ideal body figures and the body figures desired by the subjects remained unchanged. When nutrient intakes of subjects were assessed before the program and 6 months later, the mean daily vitamin C intake was significantly increased after the education program. Also, the intake of iron from plant food sources increased in the overweight subjects, while less iron from animal source were consumed by the underweight subjects. Both groups tended to consume more vegetables and fruits 6 months after the education program which may have contribute to the higher vitamin C and plant-based iron intakes. These results indicate that a 4-day nutrition education camp program sustained changes in nutrition knowledge and nutrition attitude for 6 months. The increased intake of vegetables and fruits was also achieved through this education program. However, changes in dietary behavior in adolescents may require repeated education.

Purge & Trap-GC를 이용한 의약품 필름코팅 정제 중 잔류용제에 관한 연구

장준식,이명자,소유섭,문춘선,이주헌,박희라,김진숙,강경모,이선옥,방성연,유미자,유문균,금오성,이병욱 식품의약품안전청 2000 식품의약품안전청 연보 Vol.4 No.-

의약품은 약물을 생체에 적풋하기 위하여 유효성분의 효과가 언제나 일정하게 확보되고 사응에 편리하도록 만들어지는 것이므로 유효썽분 이외에 약효에 영향을 주지 않는 성분이 첨가되는 경운가 많다. 이 때 사용되는 용매들은 제피의 광택 및 건쪼시간의 단축 등을 위하여 휘발점이 낮을 용매들이 주로 사용되어진다. 본 연구는 의약품 필름코팅정제 중 잔류용매 4종(chlorofonr benzen, trichloro ethylen, 1,4-dioxane)에 대한 변형된 pirge & trap-GC 장치를 이용한 동시분석방법을 개발하였으며, 각 표준품의 RSD 값은 chloroform 3.03%, benzen 3.17%, trichloroethylen 3.69% and 1,4-dioxane 3.41%였다. 또한 시중 유통중인 의약품 50종에 대하여 잔류웅매 양을 측정하였으며, 검출되는 잔류용매는 한 건도 없었다. This study nras carried out to develope the analytical method for the mixture of chlorefonn, benzen, trichloroethylen and 1,4-dioxane simultaneously and determine the remainingorgauic solvents in coating tablets by Purge & Trap-GC. The results were as follouFs ; 1. Chloroform, benzen, trio:tloroethylen and 1,4-dioxane separated by tenax #5 trap by HP-624GC column by terrlperature programming. The peaks were separated completely at retentiontime of 6.88min for chloroform, 8.21min for benzen, 10.38miu for trichloroethylen and 11.95minfor 1,4-dioxane. 2. Standard RSD were individually chloroform 3.03%, benzen 3.17%, trichloroethylen 3.69%and 1,4-diorane 3.41%. 3. 60 samples were not detrcted chloroform, benzen, trichloroethylen and 1,4-dioxane.

Kartagener 증후군을 동반한 일차성 섬모 이상운동증 1례

변은경,조유경,송현주,이현경,이진화,성순희,김유경,장중현 梨花女子大學校 醫科大學 醫科學硏究所 2002 EMJ (Ewha medical journal) Vol.25 No.1

Primary ciliary dyskinesia is a genetic disorder of abnormal ciliary structure and function that leads to defective mucociliary clearance, resulting in sinopulmonary infection and infertility. Kartagener's syndrome is a subclass of primary ciliary dyskinesia and which is clinically distinguishable by the presence of situs inversus. Electron microscopy of cilia reveals ultrastructural defects in the ciliary axoneme. In the respiratory tract, this inability presumably causes impaired clearance of mucus and inhaled particles and results in the chronic infections of sinuses and bronchial trees that are characterized of the disease. Early diagnosis of the disease may be important for prevention of bronchiectasis and pulmonary insufficiency. We report one case of primary ciliary dyskinesia associated with Kartagener's syndrome in a 14 year-old young man who was presented as bronchiectasis, chronic and situs inversus, with review of literature.

계류 유산 후 한방치료 위해 내원한 환자의 Heart Rate Variability(HRV) 특성 연구

유은실 ( Eun Sil Yoo ),김민영 ( Min Young Kim ),황덕상 ( Deok Sang Hwang ),이진무 ( Jin Moo Lee ),장준복 ( Jun Bok Jang ),이경섭 ( Kyung Sub Lee ),이창훈 ( Chang Hoon Lee ) 대한한방부인과학회 2015 大韓韓方婦人科學會誌 Vol.28 No.3

Objectives: This study aims to analyze Heart Rate Variability (HRV) in women after missed abortion compared with healthy women Methods: We studied 35 women who visited Kang-Nam Kyung-Hee Korean Hospital after missed abortion from 01 January 2012 to 28 February 2015 (missed abortion group) and 35 normal women visiting medical examination center from 1 January 2014 to 31 December 2014 (Normal Group). We measured HRV of each women and investigated the difference of HRV between two groups. Results: The standard deviation of NN intervals (SDNN) in Missed abortion group is lower than normal group. The square root of the mean square difference of successive NNs (RMSSD) in Missed abortion group is lower than normal group. However there was no significant difference. Total Power (TP) and Low frequency power (LF) is significantly lower in Missed abortion group compared with normal group. High frequency power (HF), Very low frequency power (VLF) and LF/HF ratio in missed abortion group is lower than normal group. but There was no significant difference. Conclusions: Missed abortion group is lower in function of overall autonomic nervous system, especially sympathetic nerve.

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.

Cervical headgear에 의한 상악의 후방 견인시 하악의 위치변화에 대한 임상적 고찰

유영재,이철민,차경석 단국대학교 치의학연구소 1994 논문집 Vol.6 No.1

The debate over the change in the Mandibular position during the cervical headgear traction has continued for decades. The purpose of this report is to assess the generalized rotation of the Mandibule occured due to the cervical traction by a graphic method that Isaacson proposed, and illustrate the mechanism by which the vertical independent variables affect the sagittal position of the mandible. The consequences is in accordance with the Baumrind's report that the use of cervical traction is associated with condyle growth, and its effect is to keep the Mandibular plane angle relatively constant.

콘크리트용 제강슬래그 골재의 품질에 대한 고찰

이경천,고복영,유정훈 부천대학 2004 論文集 Vol.25 No.-

산업혁명 이후 급속한 경제발전에 따른 사회간접시설공사의 확대와 더불어 가속화된 환경오염으로 인한 직접적인 피해가 가시화됨에 따라 인류의 지구환경에 대한 관심이 점차 확대되어 환경보호정책이 점점 강화되고 있는 실정이다. 이러한 지구환경을 보존하기 위해 인류는 자원 및 에너지의 낭비를 개선하고, 자원 순환형 사회를 구축하기 위해 산업 폐기물의 자원재활용 시스템을 확립하고, 사용자 입장에서 재활용 재료의 적극적인 이용이 바람직하다. 현시점에서 슬래그와 같은 산업부산물, 콘크리트 폐기물과 건설폐자재 등과 같은 건설부산물을 재활용하는 폐기물의 자원화는 기업의 생산 공정에 요구되는 중요한 환경친화적 기술 중 하나이므로 대학 및 연구소를 위주로 활발히 검토되고 있다. 그러나 현재 고부가가치로 많이 활용되고 있는 고로슬래그와는 달리 국내에서 연간 약 650만 톤 배출되어지는 제강슬래그는 정련과정에서 용융되지 않아서 그대로 잔류한 유리석회(free CaO)가 원인이 되어 팽창 붕괴가 발생하여 아직도 유효이용이 되지 않고 있는 실정이다. 따라서 불안정한 제강슬래그를 사용 전 공기 중에 방치하여 유리석회의 팽창 붕괴작용을 진행시키는 에이징 처리가 국내외적으로 널리 행하여지고 있다. 본 연구는 먼저 에이징 처리 방법에 대한 참고문헌 및 자료 등을 검토하고 팽창성이 있어서 콘크리트용 골재로 사용에 제한이 있는 전로 및 전기로슬래그를 촉진에이징 처리에 의해 안정화시킨 후 전로 및 전기로슬래그 골재의 잔류 팽창성을 확인하였다. 그리고 에이징 처리한 전로슬래그 골재의 화학 및 물리적 변화를 기기분석에 의해 검토하였고 전로 및 전기로슬래그의 콘크리트용 골재로서의 품질을 KS 규격에 근거하여 시험하여 콘크리트용 골재로서의 가능성 및 품질에 대해 고찰하고자 한다. Generally natural aggregate is relatively stable and does not enter into complex chemical reactions with water. Unfortunately, however, converter and electric arc furnace slag aggregate contain a small amount of free lime. The hydration of lime makes converter and electric arc furnace slag aggregate unstable and liable to expand. Therefore converter and electric arc furnace slag are not provided for concrete aggregate. The expansion of converter and electric arc furnace slag aggregate processed by hotwater or steam aging is much lower than that of non aging. The reason is that the unstable free CaO inside non aged converter and electric arc furnace slag aggregate reacts with H₂0. In this paper, firstly, several aging methods were used in order to decrease the volume expansion of converter and electric arc furnace slag aggregate, that is stabilization. Aged converter and electric arc furnace slag aggregates were compared with natural and crushed aggregate in properties for concrete, specific gravity, absorption, unit weight, percentage of solids and soundness.

위에 발생한 거대 위장관 간질종양 1예

이경영,유영범,김태원,이경룡 건국대학교 의과학연구소 2004 건국의과학학술지 Vol.14 No.-

Gastrointestinal tumors(GIST) are rare group of neoplasias of the gastrointestinal track, which originate from or differentiate into interstitial cells of Cajal (ICC). GIST traditionally have been designated as smooth muscle tumor. However, with increasingly accurate analytic tools, immunohistochemistry and ultrastructure, most investigators were able to demonstrate that ICC, a complex cellular network postulated to act as pacemaker cells of the gastrointestinal track, which exhibit both myoid and neural features, could be a candidate for tumor histogenesis. Most ICC are only c-kit-positive, however a subset are positive for both c-kit and CD34. Most GISTs are asymptomatic and are thus usually discovered incidentally during routine check, at operation of other organs. When symptoms occur, GISTs usually present with gastrointestinal bleeding due to ulceration of the overlying gastric mucosa. Bleeding may be massive, leading to hematemesis and melena. Recently, we experienced a large sized(5×5×5 cm) GIST on the upper body of the stomach, which caused massive upper gastrointestinal bleeding in a 61-year-old man and was treated by local resection with adequate safety margin about 2 cm.

전위성 3급 부정교합 환자에서의 교합평면의 Decompensation에 대한 임상적 고찰

유영재,이철민,차경석 단국대학교 치의학연구소 1994 논문집 Vol.6 No.1

Transitional Class Ⅲ is mandibular prognathism that functional factor is transitive to skeletal factor. Considerations for the treatment of transitional Class Ⅲ with deep bite are functional factor, LFH & overbite, anterior component of force, inclination of maxillary incisor, occlusal plane angle and residual growth. The purpose of this report is attempt to decompensate transitional class Ⅲ with inadequate compensation of occlusal plane due to functional factor and then compensate residual protrusive causing anatomic factor correctly. Because treatment range that orthodontists can control is limitted to lower facial area, this report deal with occlusal plane angle and functional occlusal plane. In these 3 cases, after assessment of skeletal analysis, adequate compensation pattern of each case was reevaluated and harmonious skeletal pattern was established.