부산·울산·경남지역 직업병 감시체계

김정일,김병권,김정원,채창호,이철호,강동묵,김지홍,김진하,김영욱,이영하,이지호,김정호,윤형렬,유철인,정백근,장태원,김운규,윤동영,강진욱,김종은,안진홍,이동준,장준호,이광영,송혜란,최영희,이용환,조병만,최홍렬,고상백,김은아,이유진,홍영습,정갑열,김정만,김준연 大韓産業醫學會 2004 대한직업환경의학회지 Vol.16 No.1

Objective: Occupational medicine specialists in the Busan, Ulsan and Kyung-Nam areas established an area-based occupational disease surveillance system and used this system to collected case information for the purpose of preventing occupational diseases Methods: l l hospital participated in this system. The authors selected five main diseases, which were hand-arm vibration syndrome (HAVS), work-related musculoskeletal disorder (WRMSD), occupational asthma, occupational skin disease and occupational and occupational lung cancer and established their case definitions. All cases were reported on the web, and real time analysis was conducted. Results: Between April 2001 and April 2003, 192 cases of HAVS, 118 cases of WRMSD, 33 cases of occupational asthma, 17 cases of occupational skin disease and 17 cases of occupational lung cancer (for a total of 377 cases of these five main diseases) were reported. most of the HAVS cases came from shipbuilding, and 172 of them (92.7%) were associated with grinding. Of the four main types of WRMSD, carpal tunnel syndrome (CTS) was the most prevalent with 46 cases and shipbuilding was also the main industry involved (83.9%). The ergonomic risk factors involved mainly associated with the hand. In 19 (57.6%) and 4 (12.1%) cases of occupational asthma, the agents involved. The causative agents of occupational lung cancer included Cr, welding fume, PAH, Ni, etc. 10(58.8%) of the cases were diagnosed as squamous cell carcinoma and 5(29.4%) as adenoma. Conclusion: This result showed that an area-based occupational disease surveillance system might provide an effective method of evaluating the prevalence of such diseases, however the Busan, Ulsan and Kyung-Nam provinces are too large to be treated as individual areas. Therefore, the authors suggest that each province should establish its own surveillance system.

요양병원 입원환자 평가도구의 타당도와 신뢰도

이지윤,윤주영,장사랑 노인간호학회 2008 노인간호학회지 Vol.10 No.1

Purpose: The purpose of this study was to evaluate the validity and reliability of a patient assessment instrument for patients in long-term care hospitals. Method: The participants in this study were 90 patients admitted to 3 long-term care hospitals. The data were collected in May and June 2007. Criterion related validity of the K-ADL (Korean Activities of Daily Living) was tested using Spearman correlation with the K-MBI (Korean Modified Barthel Index). Inter-rater reliability between two nurses was tested using weighted kappa and agreement percentage. Results: Criterion related validity of the K-ADL with the K-MBI was good with average Spearman correlation coefficient =0.96. Correlation coefficients of items were between 0.63 and 0.96. Inter-rater reliability was satisfactory with the average weighted kappa equal to 0.76. Items with weighted kappa of more than 0.4 numbered 122 (86.5%) and of more than 0.75, 74 (52.5%) Conclusion: The patient assessment instrument for patients in long-term care hospitals is reliable and K-ADL is valid for classifying these patients based on resource utilization, and for quality monitoring indicators.

응력 상호작용과 연속압입 기법을 이용한 SS400 강봉의 굽힘 잔류응력 평가

李潤熙,池原宰,孫東一,張宰溢,權東一 대한금속재료학회 2002 대한금속·재료학회지 Vol.40 No.10

Apparent mechanical properties of welded structural components are deviated from the initially designed values due to the residual stress. Thus, exact assessment of the residual stress using a nondestructive method became an important issue in reliability researches. A nanoindentation model for evaluating the equi-biaxial thin film residual stress was proposed in the previous study. However, the surface residual stress in the welded joint is a non-equi-biaxial state and complex elastic/plastic deformations are involved in the macroindentation. Therefore, the previous model was modified to evaluate the real non-equi-biaxial residual stress by considering a new stress-proportional factor and a significant effect of the plasticity. The newly modified stress-analyzing model was verified empirically by comparing the evaluated uniaxial stress with the already known residual stress of 4-point bended specimen.

잔류응력 완화 중 나노접촉 형상의 천이거동 모델링을 통한 DLC 박막의 잔류응력 평가

李潤熙,池源宰,鄭增鉉,權東一 대한금속재료학회 2002 대한금속·재료학회지 Vol.40 No.7

Assessment of residual stress is an important point to prevent the failures of thin film devices. Nanoindentation technique was proposed as a stress-measuring method of thin film in a previous research. However, the stress-analyzing model used at the previous research had the problems of a partial deformation-irrelative stress interaction concept and no consideration of the change in the contact area during continuous stress relaxation. Therefore, we modified the model by analyzing a new residual stress-induced normal load based on deformation-dependent shear stress component and by calculating the continuous relaxation procedure as an integration method. The modified model was applied to evaluate the residual stresses in two diamond-like carbon films. The evaluated residual stresses from the newly modified model were more consistent with the results from the conventional curvature method than those from the earlier model.

Thermocycling이 상아질과 복합레진의 결합강도에 미치는 영향

이지연,배태성,백병주,이승영 大韓齒科器材學會 1993 대한치과재료학회지 Vol.20 No.2

The purpose of this study was to evaluate the effect of thermocycling on the tensile bond strength and marginal leakage of composite bond to dentin surface. Four kinds of dentin conditioner and adhesives including Superbond D-Liner, All-Bond 2, Prisma Universal Bond 3, and Clearfil Photobond were used for this study. Thermocycling consisted of 500 cycles, 15 seconds dwell time each in 5℃ and 55℃ bath. Tensile bond strength was measured using an Instron testing machine with a crosshead speed of 1mm/min, marginal leakage was evaluated using an image analyzer, and applicated dentin surface was observed by SEM. The results obtained were summerized as follows; 1. Tensile bond strength was 6.64 ±2.32 MPa at Superbond D-Liner group, 6.35 ±1.56 MPa at All-Bond 2 group, 4.75 ±0.95 MPa at Prisma Universal Bond 3 group and 4.66 ±1.89 MPa at Clearfil Photobond group. Superbond D-Liner group and All-Bond 2 group were larger than Clearfil Photobond group(P<0.05). 2. After thermocycling, tensile bond strength showed significant difference between All-Bond 2 group and the others, Superbond D-Liner group and clearfil Photobond group(P<0.05). 3. Marginal leakage after thermocycling of Superbond D-Liner group and All-Bond 2 group were less than Prisma Universal Bond 3 group and Clearfil Photobond group(P<0.05).

복강경하 질식 자궁적출술 30예의 임상적 고찰 : A Review of 30 Cases

윤병일,김소정,정두용,김수녕,손인숙,이지영 건국대학교 의과학연구소 2003 건국의과학학술지 Vol.13 No.-

Hysterectomy is the most common gynecologic operation. Traditionally, hysterectomy was performed either through an abdominal approach or through a vaginal approach. Recently, laparoscopic hysterectomy is quite often tried. To evaluate the effectiveness and value of LA VH(Laparoscopy Assisted Vaginal Hysterectomy), and to evaluate the possibility whether to rep;ace abdominal hysterectomy to LAVH, we analyzed our clinical cases. This clinical study is a retrospective review of 30 cases of LAVH from May 2002 to February 2003 at the department of Obstetrics and Gynecology, Chung- Ju hospital, Konkuk University. We evaluated age, parity, previous abdominal operations, indications of hysterectomy, combined operation, operating time, hemoglobin change, weight of uterus, hospital stay and postoperativeThe average operating time was 146 ± 42 minutes, the uterine weight was 239 ± 126 grams, and the mean postoperative hemoglobin loss was 1.7 ± 1.4 g/dl. The most common pathologic finding was myoma uteri(37%), and the second most pathologic finding was adenomyosis(20%) and myoma uteri with adenomyosis (20%). Serious complications were not appeared. LAVH provides a shorter hospital stay, quicker recovery, and the acceptable complication rate except incerased operating time than abdominal hysterectomy. This study suggests that LAVH appears more useful than TAH(Total Abdominal Hysterectomy) and could replace abdominal hysterectomy.

초등사회과 환경교육 연계성 분석 : 환경오염, 환경보전과 대책 영역을 중심으로 Focused on The Environmental Pollution and The Environmental Preservation & Alternative

이기복,정지윤 부산교육대학교 교육대학원 2004 논문집 Vol.6 No.-

The Purpose of This study was to prepare the basic materials which are necessary for both the direction of construction of future environmental education and desirable Teaching-Learning Process. In this paper, the contents of environmental pollution and environmental preservation & alternative were analyzed through 8 Social Studies textbooks and 8 guide book of Teachers from the 3rd grade to the 6th grade of the 7th national curriculum. The result of analysis, the Contents of Environmental Education in Elementary School Social Studies Curriculum is that not only the continuity of construction but the sequence were lacked between from the 3rd grade to the 6th grade in Elementary School. Therefore, It is necessary that the environmental education in Social Studies curriculum can more effectively be practiced and need to emphasize the environmental pollution environmental preservation & alternative and it is desirable to consider both the harmony and systematic distribution from 3rd grade to 6th grade in Elementary School Social Studies Curriculum for it. Also, the constituent of the curriculum should understand the aim of the establishment of environmental contents well enough and it is necessary for teacher to have expert knowledge that is able to understand and translate them through the study and analysis of Social Studies curriculum and textbook.

국내 의학용 스마트폰 앱의 분류 및 분석

신지윤, 김우현, 이태수 충북대학교 의과대학 충북대학교 의학연구소 2011 忠北醫大學術誌 Vol.21 No.2

-본문참고-

브라켓과 탄선 간의 마찰 전후 표면 변화 분석 : 원자현미경을 이용한 예비연구

이태희,박기호,전지윤,김수정,박헌국,박영국 대한치과교정학회 2010 대한치과교정학회지 Vol.40 No.3

브라켓과 호선 간에 발생하는 마찰은 치아 이동의 효율에 상당한 영향을 미친다. 마찰력에 기여하는 요소 중 특히 브라켓과 호선의 표면조도는 중요한 요소이다. 본 연구는 브라켓과 탄선을 실험적으로 마찰시킨 후, 원자현미경 (atomic force microscope, AFM)을 사용하여 브라켓 슬롯과 교정용 탄선의 표면 조도 변화를 정성적, 정량적으로 측정하고 비교 평가하여 브라켓과 호선 간의 마찰이 각각의 표면 변화에 미치는 영향을 규명하고자 시행되었다. 스테인리스 스틸 브라켓과 세라믹 브라켓에 각각 스테인리스 스틸 탄선과 TMA 탄선을 실험적으로 활주마찰시킨 후 각각을 원자현미경을 이용하여 표면을 관찰하였다. 실험결과 브라켓보다는 교정용 탄선에서 활주마찰 후에 더 많은 표면 변화가 나타났다. 또한 활주마찰 후에 스테인리스 스틸 브라켓은 표면 조도의 유의한 변화가 없었으나 세라믹 브라켓은 표면 조도가 감소하였다. 그리고 교정용 탄선은 모두 활주마찰 후에 표면 조도가 증가하였으며 이러한 표면 변화는 스테인리스 스틸 브라켓보다 세라믹 브라켓과의 활주마찰 후에 더 큰 것으로 관찰되었다. 본 실험으로 원자현미경은 브라켓 슬롯과 탄선의 표면 조도를 정량적으로 측정하는 데에 유용한 수단임을 알 수 있었다. Objective: The surface roughness of orthodontic materials is an essential factor that determines the coefficient of friction and the effectiveness of tooth movement. The aim of this study is to evaluate the surface roughness change of the brackets and wires after experimental sliding quantitatively. Methods: Before and after experimental sliding tests, the surface roughness of stainless steel brackets, ceramic brackets, stainless steel wires, and beta-titanium (TMA) wires were investigated and compared using atomic force microscopy (AFM). Results: After sliding tests, changes in the surface of the wire were greater than changes in the bracket slot surface. The surface roughness of the stainless steel bracket was not significantly increased after sliding test, whereas the roughness of ceramic brackets was decreased. Both the surface roughness of stainless steel and TMA wires were increased after sliding test. More changes were observed on the ceramic bracket than the stainless steel bracket. Conclusions: AFM is a valuable research tool when analyzing the surface roughness of the brackets and wires quantitatively.

우리나라 어린이와 청소년의 구강건강을 위한 공공서비스의 현황과 전망

이광희,김지영,송지현,김윤희,임경욱,정승열 大韓小兒齒科學會 2008 大韓小兒齒科學會誌 Vol.35 No.3

소아치과학이 목표로 하는 어린이와 청소년의 구강건강을 달성하기 위하여는 민간 치과의료기관에서 내원 환자를 대상으로 하는 진료만으로는 한계가 있으며 공공서비스(公共service)의 역할이 필요하다. 학교구강보건설이 설치된 초등학교는 전체의 7.2%이었고,초등학교 중에서 불소용액양치사업을 수행한 비율은 57.5%, 급식 후 집단잇솔질을 한 비율은 46.9%이었으며,초등학생 중에서 구강보건교육을 받은 비율은 48.0%, 치아홈메우기를 받은 비율은 12.4%이었다(2006년). 0∼6세 영유아의 약 42%가 지난 1년간 구강검진,불소도포,치면세마,치아홈메우기 중 하나 이상의 예방적 치과진료를 받았으며,받은 장소는 교육시설이 약 18%, 보건소가 약 1%이었다(2005년). 불소농도가 조정된 수돗물을 마시는 인구 비율은 전국 평균이 5.7%이었다(2006년). 학교구강보건사업의 발전을 위해서 행정의 일원화,보건교사에 대한 교육,구강보건교사제도의 도입,순회 학교치과의사와 학교치과병원을 통한 포괄적 진료서비스의 제공 등을 고려할 수 있을 것이다. 또한 아동·청소년 주치의제의 도입으로 민간기관을 통해 공공서비스를 강화하는 방안이 검토되고 있다. To achieve the dental health of children and adolescents which is the objective of the pediatric dentistry, the role of the public service should be increased. The basis of the public service is established by many laws of which the Dental Health Law is most important. The percentages of primary schools that had the school dental health clinic, that implemented the fluoride rinsing program, and that implemented the group toothbrushing after lunch were 7.2%, 57.5%, and 46.9%, respectively, and the percentages of primary school children that received the dental health education and that received the fissure sealing were 48.0% and 12.4%, respective1y(2006). About 42% of infants and preschool children from 0 to 6 years received preventive dental care in the last one year, at the nursery or kindergarten(18%) or at the health center(1%)(2005). The percentage of the health centers that implemented water fluohdation was 11.3%, and the percentage of the population who drank the fluoridated water was 5.7 %(2006). It was suggested that the school dental health administration should be unified, that dental health teachers should be employed, and that the comprehensive dental health care should be supplied to all the children and adolescents through the circuit school dentists and the school dental hospitals in the long term. Also, the dentist in charge system for the children and adolescent was suggested.