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감시체계를 통하여 보고된 직업성 피부질환의 특성에 관한 연구 - 사업장, 특수건강진단기관, 피부과의사의 보고사례를 중심으로 기술 -
김형옥,이준영,정호근,안연순,Kim, Hyoung-Ok,Lee, Jun-Young,Jung, Ho-Keun,Ahn, Yeon-Soon 대한예방의학회 1999 예방의학회지 Vol.32 No.2
Objectives: This study was carried out to estimate the magnitude of skin disease related to occupation and to find out the characteristics of it. Methods: We collected and analyzed the cases of occupational skin disease reported by surveillance system composed of doctors and nurses in 150 enterprises with dispensary or attacked hospital and physicians in 92 specific health examination institutes and 150 dermatologists from May to November, 1998. Results: Among members of surveillance system, 66 enterprises and 47 specific health examination institutes and 55 dermatologists reported 571 cases of occupational skin disease in 512 workers. Excepting 81 cases reported by dermatologists, We analyzed 490 cases reported by enterprises and specific health examination institutes. Among 490 cases, contact dermatitis was most common(368 cases, 75.1%) and the second was hyper or hypopigmentation(36 cases, 7.3%). When we analyzed the characteristics of workers with occupational contact dermatitis, male workers were 281 (79.2%) and female were 74(20.8%). 165 workers(64.5%) had chronic skin disease with repeated cure and relapse. 245 workers(72.5%) answered positively that their coworkers had similar skin disease. 27 workers(8.7%) experienced absence due to contact dermatitis related to occupation. To analyze the type of industries of workers with occupational contact dermatitis, automobile and trailer manufacturing industry was most common(105 cases, 29.6%) and the second was manufacturing industry for image, sound and communication equipment(55 cases, 15.5%). Organic solvent(183 cases, 46.7%) was the most common treating material of workers with contact dermatitis and the second was various kinds of chemicals(59cases, 15.1%). Conclusions: This is the first study using nationwide surveillance system to collect data of occupational skin disease. We found that many workers had skin disease related to occupation and characteristics of occupational skin disease were chronic and clustering. Therefore, we had to establish counterplan to manage occupational skin disease and to operate surveillance system to identify trends of occupational skin disease, continuously.
단시간 허용농도의 toluene이 benzene대사에 미치는 영향
노재훈,신동천,박정균,문영한,정호근,Roh, Jae-Hoon,Shin, Dong-Chun,Park, Jung-Gyun,Moon, Young-Hahn,Chung, Ho-Keun 대한예방의학회 1988 Journal of Preventive Medicine and Public Health Vol.21 No.1
Benzene and toluene, which are widely used aromatic hydrocarbons in workplace, are recently proved to cause health hazards due to their toxic effects. This study investigated the influence of toluene on the urinary excretion of benzene metabolite by administering short term exposure limit(STEL) of these compounds(i.e., 13.8mg/kg of benzene and 108.8 mg/kg of toluene) intraperitoneally into Sprague-Dawley rats. After administration, urinary phenol concentration of rat was measured by gas chromatography for every three hours. Data were analyzed by non-parametric statistical methods using Kruskal-Wallis multi-sample test and Mann-Whitney U test. The following results were obtained : 1. Administration of STEL-benzene increased urinary phenol concentration in lats. 2. Urinary phenol concentration was increased logarithmically according to the dosage of benzene. 3. Excretion of phenol in urine was decreased when benzene and toluene were administered simultaneously compared with administering benzene alone. In summary, these results reveal that administration of STEL of toluene has antagonistic effect of urinary excretion of benzene metabolite in rats.
RESIN 취급 주물공장 근로자들의 호흡기 건강에 관한 연구
최정근,이창옥,백도명,최병순,신용철,정호근,Choi, Jung-Keun,Rhee, Chang-Ok,Paek, Do-Myung,Choi, Byung-Soon,Shin, Yong-Chul,Chung, Ho-Keun 대한예방의학회 1994 Journal of Preventive Medicine and Public Health Vol.27 No.2
The effects of resin on the respiratory health have been investigated in 309 workers from four iron and steel foundries and the results compared with those from 122 workers who were not significantly exposed to resin gas and silica dust at the same industries. Phenol-formaldehyde resin was used in the core making and molding processes and workers were exposed to their decomposition products as well as to silica dust containing particulates. The subjects were grouped according to formaldehyde, dust and other gas exposures, and smoking habits were considered also in thi analysis. Standardized respiratory symptom questionnaire was administered by trained interviewers. Chest radiograph, pulmonary funtion tests, and methacholine challenge tests were done. Environmental measurements at the breathing zone were carried out to determine levels of formaldehyde, respiable dust and total dust. Foundry workers had a higher prevalence of symptoms of chronic bronchitis with chronic phlegm and chronic cough when exposed to dust. Exposure to gas was significantly associated with lowered $FEV_1$ and obstructive pulmonary function changes. Exposure to formaldehyde and phenol gas was associated with wheezing symptom among workers, but $FEV_1$ changes after methacholine challenge were not significantly different among different exposure groups. When asthma was defined as the presence of bronchial hyperreactivity with more than 20% decrease in $FEV_1$ after methacholine challenge, 17 workers out of 222 tested had asthma. Fewer asthmatic welters were found among groups exposed to formaldehyde, gas and dust, which indicates a healthy worker effects ill a cross-sectional study. The concentration of formaldehyde gas ranged from 0.24 to 0.43 ppm among studied foundries. The authors conclude that formaldehyde and phenol gas from combusted resin is probably the cause of asthmatic symptoms and also a selection force of those with higher bronchial reactivity away from exposures.
적정기술 주제의 STEAM 프로그램 개발 및 초등학생의 창의적 사고활동, 과학적 태도, 리더십에 미치는 영향
유미현 ( Mi Hyun Yoo ),박기수 ( Gi-su Park ),최정진 ( Jung Jin Choi ),임미라 ( Mira Lim ),이진아 ( Jina Lee ),신민철 ( Minchul Shin ),이종섭 ( Chong-sup Lee ),이양은 ( Yang-eun Lee ),유화수 ( Hwasoo Yu ),정호근 ( Ho-keun Chung ),이 경북대학교 과학교육연구소 2016 科學敎育硏究誌 Vol.40 No.2
이 연구의 목적은 적정기술 주제의 융합인재교육(STEAM) 프로그램을 개발하고 초등학교에 적용하여 효과를 알아보는 것이다. 이 연구를 위해 경기도 소재 초등학교 3학년 85명이 참여하였다. 40명은 실험집단으로, 45명은 비교집단으로 배치하였으며 프로그램 적용 전후에 창의적 사고활동, 과학적 태도, 리더십 검사를 실시하였다. 본 연구에서 얻어진 결과는 다음과 같다. 첫 째, 적정기술 주제의 STEAM 프로그램을 적용한 실험집단 학생의 창의적 사고활동 전체 점수 와 4개 하위영역 모두에서 비교집단에 비해 유의미하게 향상되었다(p<.05). 둘째, 적정기술 주 제의 STEAM 프로그램을 적용한 실험집단 학생의 과학적 태도 전체 점수와 호기심, 자진성, 끈 기성 3개 하위영역 점수가 비교집단에 비해 유의미하게 향상되었다(p<.05). 셋째, 적정기술 주 제의 STEAM 프로그램을 적용한 실험집단 학생의 리더십 전체 점수와 개인 내 특성, 개인 간 특 성 점수가 비교집단에 비해 유의미하게 향상되었다(p<.05). 결론적으로 본 연구에서 개발 적용한 STEAM 프로그램이 초등학생의 창의적 사고활동, 과학적 태도, 리더십을 향상시키는 데 효과적임을 시사한다. The purpose of this study was to develop ‘Appropriate Technology’ theme STEAM Program for the elementary students and investigate the effects of the program on creative thinking activity, scientific attitude and leadership. Participants were 3grade 85 elementary school students. Before and after the program, the participants were asked to take the tests about creative thinking activity, scientific attitude and leadership. The major results of this study were as follows. First, the total score of experimental group``s creative thinking activity and all 4 sub-domains was significantly improved than those of comparative group(p<.05). Second, the total score of experimental groups’ scientific attitude was significantly improved than that of comparative group(p<.05). Among 7 sub-domains, curiosity, voluntariness, perseverance were significantly developed. Third, total score of experimental groups’ leadership was significantly increased than that of comparative group after the STEAM program (p<.05). In the first factor, the score of inner and inter personal characteristics were significantly developed.
관절경수술 환자의 표준진료지침 개발과 적용으로 환자 및 의료진의 만족도 향상
박성주 ( Seong Joo Park ),김유희 ( Yu Hee Kim ),도은미 ( Eun Mi Do ),김보라 ( Bo Ra Kim ),김종필 ( Jong Pil Kim ),조재우 ( Jae Woo Cho ),정호근 ( Ho Keun Jung ),이관 ( Kwan Lee ) 대한보건협회 2012 대한보건연구 Vol.38 No.1
Objectives: The study evaluated the effect of a newly developed critical pathway (CP) for arthroscopic surgery in improved satisfaction of patients and medical staff. Methods: A novel CP developed for arthroscopic surgery and questionnaire for satisfaction was evaluated on 37 patients. Patient satisfaction was compared to a control group of 37 gender- and age-matched (±3 years) patients who had previously received surgery prior to CP development. A questionnaire survey concerning satisfaction was completed by 20 medical staff after applying CP. Results: Satisfaction after applying CP in both patients and health care workers was increased compared with the control group, especially among medical staff concerning explanation for surgery and progress after surgery. Conclusion: The CP improves satisfaction in both patients and health care workers. Other CPs should be developed and applied.
8년간(1992~1999) 산업안전보건연구원에 의뢰된 직업병 심의 사례 분석
강성규,김규상,김양호,최정근,안연순,진영우,최병순,양정선,김은아,채창호,최용휴,김대성,박정선,정호근 대한산업의학회 2000 대한직업환경의학회지 Vol.12 No.2
Objectives : Pneumoconisis and noise-induced hearing loss (NIHL) have been reported as main occupational diseases by the Special Health Examination. The Industrial Accident Compensation Insurance has reported various work-related diseases, however, these two diseases occupied almost a half of compensated cases. Therefore, it was not well known about the status of occupational diseases other than pneumoconiosis, NIHL, and cardio-cerebrovascular accident (CVA). This study was conducted to analyze claimed cases as an occupational disease, that was requested to the Korea Industrial Safety and Health Agency (KOSHA). Methods : The local office of the Korea Labor Welfare Corporation (KLWC) has asked the KOSHA for confirmation of claimed cases as an occupational disease. We analyzed 379 cases requested from KLWC, the Ministry of Labor, employers, unions and occupational health agencies from 1992 to 1999. Results : Male was 80.7 % of the requested cases. Their mean age was 42 years old and 75.5 % of them were more than 35 years old. The requested cases were increased rapidly from 25 cases in 1992 to 108 cases in 1999 and the accept rate was 50.7 %. The majority of requested cases were respiratory diseases(22.4%), cancers(18.5%), Neuropsychiatric problems(14.5%), and musculoskeletal problems(13.5%). The accept rate was high in reproductive, respiratory, musculoskeletal and digestive disorders and low in neuropsychiatric, renal and otologic problems and occupational cancers. 73.6% of them were caused by chemical agents, especially 28.5 % were by organic solvents. 67% of them were clinically confirmed at university hospitals. A half of the cases were from KyongIn area, even the request came from the whole country. Conclusions : A claim was common in workers whose age was over 35 years old and exposure history was over 10 years. The respiratory diseases and neuropsychiatric disorders were still main problems in occupational health and occupational cancers was increasing even though its accept rate was not high yet.