충남지역 중소 제조기업 남성 근로자의 교육훈련 참여가 교육효과 인식에 미치는 영향

한성규 ( Seong Kyoo Han ),임병철 ( Byeong Cheol Leem ),최규열 ( Kyu Yul Choi ),고경한 ( Kyoung Han Ko ) 산업진흥원 2016 산업진흥연구 Vol.1 No.2

본 연구는 충남지역 중소 제조기업 남성 근로자의 교육훈련 참여가 교육효과 인식에 미치는 영향을 분석하였다. 연구결과 교육훈련 형태 중 Off-JT에 대한 만족도는 교육훈련 시스템 만족도와 직무와 관련한 자기계발 도움정도에 긍정적인 영향을 미쳤다(p<.05). 이는 집체교육이나 이러닝교육이 현장훈련보다 교육시스템이 더 잘 갖춰져 있음을 의미하며, 따라서 향후 현장훈련에 대한 체계적인 시스템 마련이 필요하다고 제안할 수 있다. 또한 근로자가 집체교육이나 이러닝교육이 현장훈련보다 자기계발에 더 효과적이라고 인식하고 있으며, 현장훈련에 대한 만족도가 낮게 나타나 개선이 필요함을 의미한다. 본 연구는 충남지역 중소 제조기업 남성 근로자의 교육훈련 참여가 교육효과 인식에 미치는 영향을 분석함으로써 교육형태별 효과성을 파악하고 사내 교육훈련 만족도를 높이기 위한 시사점을 제시한 데 연구의 의의가 있다. This study analyzed the effect of Chung-nam province small manufaturing firm male workers’ participation in training on perceptions of effectiveness. The study results showed that Off-the-job training satisfaction significantly affected satisfaction of training system and helpfulness of self-development. It means that workers considered lecture or e-learning method is better than on-the-job training, so it is suggested that small manufacturing businesses should establish more organized training system for on-the-job training because workers’ perception of satisfaction and effectiveness of OJT was lower than Off-JT. This study provided implications for verifying the effectiveness depend on the type of training and presenting important points to enhance workers’ satisfaction of education and training.

사용자 프로파일을 이용한 적응력 있는 비디오 브라우징 서비스

고경철(Kyong-Cheol Go),신성윤(Seong-Yoon Shin),임정훈(Jung-hoon Leem),이양원(Yang-Won Rhee) 한국멀티미디어학회 2001 한국멀티미디어학회 학술발표논문집 Vol.2001 No.2

보일러 폐가스(CO) 측정 실습장비 개발

임사환(Sa Hwan Leem),허용정(Yong Jeong Huh),최성주(Seong Joo Choi),이종락(Jong Rark Lee),김철진(Cheol Jin Kim),이욱범(Uk Boum Lee),하태영(Tae Young Ha),김화섭(Hwa Seop Kim),최락범(Rack Bum Choi) (사)한국CDE학회 2007 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2007 No.1

Impacts of presenteeism on work-related injury absence and disease absence

Youna Won,Hwan-Cheol Kim,Jiho Kim,Minsun Kim,Seong-Cheol Yang,Shin-Goo Park,Jong-Han Leem 대한직업환경의학회 2022 대한직업환경의학회지 Vol.34 No.-

Background: Many studies have been conducted on presenteeism and absenteeism, but the relationship between presenteeism and absenteeism is unclear. This study was undertaken to investigate the effect of presenteeism on future absenteeism. Methods: This study was conducted on non-white collar workers that underwent general health examinations in 2014 and 2015. We asked subjects to fill out a questionnaire about their experiences of presenteeism for the past one year in 2014. In 2015, it was checked whether the same subjects had any experience of absence from work due to injury or disease during the past year. The χ² test was used to analyze relationships between sociodemographic and occupational characteristics, presenteeism, and absence. Odds ratios (ORs) were calculated by logistic regression analysis controlled for confounding factors. Results: A total of 12,572 workers were included in the study. For workers who experienced presenteeism, the OR for injury absence was 2.705 (95% confidence interval [CI]: 2.044–3.581), and the OR for disease absence was 4.906 (95% CI: 3.996–6.024) after adjusting for sociodemographic and occupational confounding factors. For men that experienced presenteeism, the OR for injury absence was 3.035 (95% CI: 2.258–4.081), and the OR for disease absence was 5.508 (95% CI: 4.340–6.989). For women that experienced presenteeism, the OR for injury absence was 1.322 (95% CI: 0.577–3.028), which was not significant, and the OR for disease absence was 3.629 (95% CI: 2.405–5.475). Conclusions: This study suggests that presenteeism can influence future absenteeism. The effect of presenteeism may depend on cause of absence. Men who experienced presenteeism showed greater effects on injury and disease absence than women. For women, experience of presenteeism had a significant effect on disease absence but not on injury absence.

Relationship between occupational sunlight exposure and the incidence of renal cancer

Hyun-Suk Jang,Jong-Han Leem,Seong Soo Jeon,Shin-Goo Park,Sangyoon Lee,Yangwon Kang,Go Choi,Hyung Doo Kim,Hyeonwoo Ju,Sung Wook Jang,Youna Won,Hwan-Cheol Kim 대한직업환경의학회 2019 대한직업환경의학회지 Vol.31 No.-

Background: The risk factors for renal cancer include smoking, obesity, hypertension, and exposure to trichloroethylene. Recent studies have shown that low sunlight exposure increases the risk of developing a range of cancers, including renal cancer. Given that most of the daytime is spent at work, a lack of occupational sunlight exposure can be a risk factor for renal cancer. Therefore, this study examined the relationship between occupational sunlight exposure and the incidence of renal cancer. Methods: This was a university hospital-based case-control study on renal cancer. Of the 706 newly diagnosed patients with renal cell carcinoma (RCC), 633 cases were selected; 73 who had no occupational history were excluded. In addition, 633 controls were selected from the general population after 1:1 matching with respect to sex, age (within 5 years), and residential area (constituency-level). Information on sunlight exposure by the occupational group was referred to data from France. To estimate the association between occupational sunlight exposure and the RCC risk, the odds ratios (ORs) were calculated using conditional logistic regression analysis. Results: Sunlight exposure was divided into quartiles and the risk of RCC was analyzed. The adjusted OR of RCC (OR: 0.664, 95% confidence interval: 0.449–0.983) was significantly lower for the Q4 group than Q1 group but the Q2 and Q3 groups did not show significant results. The risk of RCC tended to decrease with increasing exposure to sunlight (p for trend < 0.028). Conclusions: Higher occupational sunlight exposure reduces the risk of RCC.

평생교육을 위한 웹 기반 학습에서 상호작용 유형에 따른 효과 분석

정인성 ( In Sung Jung ),임철엘 ( Cheol Il Lim ),최성회 ( Seong Hee Choi ),임정훈 ( Jung Hoon Leem ) 한국교육공학회 2000 교육공학연구 Vol.16 No.1

Bee Venom 및 Melittin 약침액(藥鍼液)이 신경아세포종(神經芽細胞腫)의 세포사(細胞死)에 미치는 영향(影響)

강동철,정태영,서정철,임성철,한상원,Kang, Dong-cheol,Jung, Tae-young,Seo, Jung-chul,Leem, Seong-cheol,Han, Sang-won 대한침구의학회 2003 대한침구의학회지 Vol.20 No.2

Objective : This study was designed to analyze the effects of bee venom and melittin on cell death in neuroblastoma cell line. Methods : MTT assay, morphologic method, DNA fragmentation, flow cytometry, immunocytochemistry analysis, RT-PCR and Western blot were performed. Results : The obtained results are summarized as follows: 1. The MTT assay demonstrated that neuroblastoma cell viability was significantly inhibitted dose-dependently by treatment with bee venom and melittin in comparison with control. 2. Cell culture demonstrated that control group proliferated highestly at he 5th day in comparison with the 4th day in bee venom and melittin group. And in bee venom and melitti group cell proliferation decreased 2.5 times than control group. 3. The morphologic study demonstrated that neuroblastoma cell showed apoptosis after treatment with bee venom and melittin for 6 hours using microscope. 4. The Flow cytometry demonstrated that apoptosis of neuroblastoma cell treated with bee venom and melittin was related with stop of cell cycle in stage of $G_0/G_1$. 5 .DNA fragmenation demonstrated that neuroblastoma cell treated with bee venom and melittin showed DNA ladder below 1 Kbp. 6. Immunocytochemistry assay demonstrated that Fos and MAPK which are related with cancer were down-regulated by treatment with bee venom and melittin. 7. RT-PCR analysis demonstrated that Fos and MAPK mRNA were transcripted. Fos was down-regulated form treatment with $5{\mu}g/ml$ bee venom and MAPK was down-regulated form $1{\mu}g/ml$ bee venom. 8. Western blot demonstrated that Fos was down-regulated from $1{\mu}g/ml$ bee venom whereas MAPK was expressed by $1{\mu}g/ml$ bee venom but down-regulated by $10{\mu}g/ml$ bee venom. Conclusions : We found that some cancer related genes ware down-regulated by treatment with bee venom and melittin. Further study is needed for investigating the anti-cancer effect of bee venom and melittin.

인천 지역 초등학교 학생에서 대기 오염물질의 농도와 알레르기 질환 유병률 및 폐기능과의 연관성

김정희 ( Jeong Hee Kim ),오성근 ( Sung Keun Oh ),성현우 ( Hyeon U Seong ),임대현 ( Dae Hyun Lim ),손병관 ( Byong Kwan Son ),김환철 ( Hwan Cheol Kim ),이지영 ( Ji Young Lee ),임종한 ( Jong Han Leem ) 대한소아알레르기호흡기학회(구 대한소아알레르기 및 호흡기학회) 2010 소아알레르기 및 호흡기학회지 Vol.20 No.4

목적: 인천의 초등학교 학생을 대상으로 학교의 대기 오염물질 수준과 알레르기 질환 및 폐기능과의 연관성을 규명하고자 하였다. 방법: 인천 지역 11개 초등학교 2학년 학생 1,262명을 대상으로 하였다. 일산화탄소(CO), 이산화질소(NO2), 오존(O3), 아황산가스(SO2), 미세먼지(PM10)의 학교별 5년간 평균농도는 국립환경연구원의 자료를 바탕으로 지리정보체계를 이용해 추정하였다. 대기 오염물질 수준과 학생들의 알레르기 질환 유병률 및 폐기능의 연관성을 평가하기 위해 크게 두 가지 방법으로 나눈 군 학생간에 비교를 하였다. 학교에서 대기 오염물질 배출시설까지의 거리가 1 km 이상인 비인접학교와 1 km 이내인 인접학교로 나누어 두 군을 비교하였다. 또한, 각 대기 오염물질별 5년간 평균농도의 중간값을 기준으로 대기오염물질 농도가 상대적으로 높은 학교와 상대적으로 낮은 학교로 나누어 두 군을 비교하였다. 결과: 오존을 제외한 대기 오염물질 농도는 인접학교에서 비인접학교에 비해 유의하게 높았다. 인접학교 학생들은 1초간 노력성 호기량(FEV1)과 최대호기속도(PEF)가 비인접학교 학생들에 비해 유의하게 낮았고, `최근 일년간 숨이 차서 말하기 힘든 증상 경험`은 비인접학교 학생들보다 유의하게 많았다. 또한, 이 말하기 힘들어하는 증상은 NO2, SO2, PM10의 상대적 농도가 높은 군에서도 각각의 상대적 농도가 낮은 군에 비해 유의하게 많았다. PM10의 상대적 농도가 높은 군에서는 알레르기비염의 유병률이 상대적 농도가 낮은 군보다 유의하게 높았다. 결론: 학교의 대기 오염물질은 학생들의 알레르기 질환 특히, 알레르기비염의 유병률 증가와 폐기능 감소에 영향을 미치는 것으로 생각된다. Purpose: This study aimed to determine whether the standard clinical pathway based on evidence is applicable to pediatric asthma patients in the emergency room, and whether it is better for treatment effectiveness. Methods: The clinical pathway was applied to children who visited our emergency room due to acute asthma between January 1 and December 31, 2009. Medical records of the emergency room were reviewed to see if the clinical pathway was correctly applied. The patients were divided into 2 groups: those who the pathway was correctly applied and those who the pathway was incorrectly applied to (group B, n=41). Results: Acute asthma exacerbation occurred in 24 children (47%) in group A, while it occurred in 27 children (53%) in group B. The majority of patients in group B had moderate asthma exacerbation. The incorrect application of the clinical pathway and no use or insufficient use of inhaled anticholinergics was most frequently noted. The most common cause for the incorrect application of the clinical pathway was its misunderstanding of residents. The hospitalization rate was higher in group B than in group A. Conclusion: The application of the clinical pathway to pediatric asthma patients in the emergency room increased treatment effectiveness. However, training for the residents and intensive care for the patient with moderate asthma exacerbation are necessary for correct application of the clinical pathway. [Pediatr Allergy Respir Dis(Korea) 2010;20:264-276]

Hirudin 약침(藥鍼)이 뇌허혈(腦虛血)을 유발(誘發)시킨 흰쥐의 신경전도물질(神經傳達物質)에 미치는 영향(影響)

석재욱,정태영,임성철,서정철,한상원,Suk, Jae-Wook,Jung, Tae-Young,Leem, Seong-Cheol,Seo, Jeong-Chul,Han, Sang-Won 대한약침학회 2004 Journal of pharmacopuncture Vol.7 No.2

Objective : This experimental studies were performed in order to prove the effect of Hirudin Herbal-acupuncture by using rats that had neuronal damage due to the Middle Cerebral Artery Occulsion(MCAO). Method : We observed the change of extracellular concentrations(${\mu}M$) of dopamine, DOPAC, HVA, HIAA, glutamate, aspartate, GABA, glysine, taurine, alanine, and tyrosine as extracted by vivo microdialysis, in the Hirudin Herbal-acupuncture administrated rats($240{\sim}260g$, Sprague-Dawley) subjected to the MCAO. The dialysates were extracted three times before the MCAO and six times after the MCAO every 20 minutes, and analysed by highperformance liquid chromatography(HPLC). Results : Hirudin Herbal-acupuncture significantly inhibited glutamate, aspartate, and tyrosine which are stimulant neurotransmitters at brain ischemia, and it significantly decreased glycine, GABA, taurine, and alanine which are inhibitory neurotransmitters at brain ischemia. Conclusion : Hirudin Herbal-acupuncture may prevent delayed neuronal death(DND) in selectively vulnerable focal areas of the brain effectively.

The Association of the -675 4G/5G and A-844G Polymorphisms of the Plasminogen Activator Inhibitor-1 Gene with a Risk of Ischemic Stroke in Korean Population

이병철,변상혁,김순일,강기훈,안세영,두호경,서정철,임강현,조성호,안영민,Lee, Byung-Cheol,Byun, Sang-Hyuk,Kim, Soon-Il,Kang, Ki-Hoon,Ahn, Se-Young,Doo, Ho-Kyung,Seo, Jung-Chul,Leem, Kang-Hyun,Cho, Seong-Ho,Oh, Chad K.,Ahn, Young-Min The Society of Internal Korean Medicine 2004 大韓韓方內科學會誌 Vol.25 No.4

연구배경 : 플라스미노겐 활성 억제인자-1 (plasminogen activator inhibitor-1; PAI-1)은 허혈성 뇌경색의 발생의 원인이 되는 섬유소 용해작용의 저하를 매개하는 인자로서, PAI-1의 작용이 촉진되면 섬유소 용해기능이 저하되어 관상동맥 및 뇌혈관질환의 발생을 증가시키게 된다. PAI-1 유전자의 촉진자(promoter) 영역에는 -675 4G/5G (4G/5G)와A -844G (A/G)의 두 개의 유전자 다형성이 존재하며, 이는 PAI-1의 유전자 전사과정에 영향을 미쳐 혈청 PAI-1의 농도를 증가시키고 결과적으로 허혈성 뇌경색의 발생확률을 높이는 작용을 하게 된다. 연구방법 : 허혈성 뇌경색으로 진단 받은 167명의 환자와 173명의 건강인의 말초혈액에서 DNA를 분리한 후 PAI-1의 4G/5G와 A/G 유전자 다형성에 대한 연쇄중합반응 및 제한효소 절편길이 다형성 (polymerase chain reaction-restriction fragment length polymorphism; PCR-RFLP) 방법을 이용하여 허혈성 뇌경색 발생과 유전자 다형성과의 관계를 비교 분석하였다. 결과 : 허혈성 뇌경색 환자에서의 4G/4G의 유전자형의 빈도는 15.0%으로 정상 대조군의 33.5%에 비해 현저하게 낮게 나타났다 (P < 0.0001). 각각의 유전자형과 허혈성 뇌경색의 발생 위험도 (odd ratio ; OR)와의 관계를 분석했을 때 4G/4G 유전자형을 가질 경우 위험도는 0.35배로 현저하게 낮아졌으며, (P < 0.0001), 5G/5G 유전자형을 가질 경우 위험도는 4.49배 로 현저하게 높아졌다 (P < 0.0001). 그러나, A/G 유전자 다형성과 허혈성 뇌경색의 발생과는 유의한 연관성을 발견하지 못하였다. 결론 : 이상의 결과로 볼 때 PAI-1 유전자의 4G/4G 유전자형은 허혈성 뇌경색의 발생 비율을 감소시키는 작용을 하는 것으로 여겨진다.