제조업 종사 지체장애근로자의 스트레스 관련요인

정민예,박정일,구정완,노영만 大韓産業醫學會 2003 대한직업환경의학회지 Vol.15 No.1

목적: 본 연구는 지체장애근로자의 스트레스의 정도를 파악하고 이에 영향을 미칠 것으로 추정되는 여러 요인 들 즉 일반적 특성, 장애관련 특성, 직업관련 특성, 직무 스트레스 원, 중재변인들과의 관련성을 규명함으로써 지체장애근로자들의 스트레스의 예방적 관리 방안에 대한 방향을 설정하는데 필요한 자료를 구하고자 수행하였다. 방법: 본 연구의 대상자는 경·인 지방 제조업 종사 지체장애근로자로 방문과 우편 설문 조사를 통하여 응답한 341명이었다. 스트레스 수준의 측정은 신뢰도와 타당도가 인정된 Goldberg의 GHQ-60을 수정보완한 사회 심리적 건강 측정도구인 Psychosocial Well-being Index(PWI)를 사용하였다. 관련변수들은 일반적 특성, 장애관련특성, 직업관련특성과 직무 스트레스 원으로 하였고 기타변수로 조직 외 요인(가정요인, 사회적 자원), 개인관련요인(욕구 및 가치, A형 행동, 통제소재 및 인구통계 특성), 자아존중감, 대처전략으로 설정하였다. 수집된 자료는 SAS 6.12 통계프로그램으로 분석하였다. 결과: 지체장애근로자의 스트레스수준에 영향을 미치는 관련요인은 다변량 로지스틱 회귀분석을 이용하여 분석한 결과 본인이 지각한 건강상태가 좋지 않은 경우, 자아 존중감이 낮은 경우, 규칙적 운동을 하지 않은 경우, 업무 중 장애로 인한 어려움을 느끼는 경우, 집안이동능력이 독립적이지 못한 경우, 직업에서 집단 갈등이 있는 경우, 그리고 역할 갈등을 느끼는 경우, A형 행동 유형인 경우였다. 결론: 지체장애근로자의 스트레스 수준을 낮추기 위해서는 건강증진프로그램의 개발과 제공, 작업보조시설 지원과 더불어 집단갈등 및 역할갈등을 포함한 직업관련갈등을 감소시키기 위한 방안마련이 요구된다. Objectives: This study was performed to measure the stress level of physically disabled workers, and to inestigate the relationship between the stress dimensions and stress inducting factors of physically disabled workers in the Korean manufacturing industry. Methods: The sample used in this study consisted of 341 physically disabled workers who had been working at companies in Seoul, Inchon, and Gyung-gi provinces. The Psycho-social Well-being Index (PWI), a modified version of Goldberg's 60-items of General Health Questionnaire (GHS), was used to measure the stress level. The following independent and moderate variables were desinged for the same purpose. The independent variables were general and disability characteristics, workplace-related characteristics, and job stressor of the respondents. The other variables included organization-related stressors (social and family support) and person related stressors (needs and values, type A behavior pattern, locus of control and demographics), self-esteem and coping strategy. The collected data were analyzed using SAS version 6.12 program. Results: Multiple logistic regression analysis showed that the significant variables on the stress level of physically disabled workers were poor self-perceived health status, low self-esteem, absence of regular exercise, physically disabled condition affecting work performance capability, dependent mobility at home, interpersonal conflict, role conflict and A type behavior pattern. Conclusions: The results of this study suggest that appropriate health program should be established and provided for reducing the stress of physically disabled workers in the manufacturing industry. In addition, various vocational programs for decreasing interpersonal and role conflicts should be developed.

스트레스관리 프로그램이 만성정신분열병환자의 증상과 삶의 질에 미치는 효과

박현경,구정완,노영만,이강숙,박정일 가톨릭대학산업의학센타 산업의학연구소 2003 韓國의 産業醫學 Vol.42 No.1

This study examined the effects of stress-management programs on the symptoms and quality of life in the chronic schizophrenics. The subjects were the chronic schizophrenics who were registered and managed by one of the public health care centers in Seoul. The stress-management programs were provided 10 times. Positive and negative syndrome scale (PANSS) and quality of life were surveyed before and after the stress-management programs. The results were as follows. 1. The differences of positive symptoms, negative symptoms and general psychopathological symptoms before and after stress-management program were significantly different between the group which were provided with stress-management programs and the group which were not provided. 2. The differences of the quality of life before and after stress-management program were significantly different between the group which were provided with stress-management programs and the group which were not provided. These results indicate that stress-management programs have effects on relieving the symptoms and improving the quality of life of schizophrenics. Ultimately these results also suggest that stress-management programs be used as the supplementary means to treat schizophrenics.

수도용 농약후치왕, 오트란의 작물 및 토양에서의 잔류와 분해

백옥련,노정구,김택제 한국응용생명화학회 1982 Applied Biological Chemistry (Appl Biol Chem) Vol.25 No.2

농약의 사용량이 급격히 증가함에 따른 농약의 자연 환경에 미치는 영향을 살펴보고 농약의 안전성 평가에 관한 연구방법을 정립하기 위하여 우리나라에서 많이 쓰이고 있는 수도용 농약 중 살균제인 후치왕(Fujione, Isoprothiolane)과 살충제인 오트란(Ortran, Acephate)의 토양에서의 잔류성과 수도 작물에의 잔류성에 대해 포장실험 및 실험실적 방법으로 조사하였다. 벼, 볏짚, 현미 및 백미에서의 농약의 잔류 또는 농약의 처리된 횟수에 따라 다르게 나타났는데 후치왕의 경우 백미 중 농약 함양은 0.07~0.99ppm이었고 오트란은 0.01~0.53ppm이었다. 또한 후치왕의 반감기는 실험실적인 방법으로 호기조건하에서 30일, 담수조건하에서 150일 인데 반해 포장에서는 약 100일로 나타났다. 오트란의 경우는 호기, 담수조건하에서 각각 3~4일, 13~14일이었다. Residues of Fujione (Fudiolan, fungicide) and Ortran (Acephate, insecticide) in Korean rice crop were studied. Also the persistencies of the pesticides in rice paddy soil were investigated in field and in laboratory. The residual levels of the pesticides in rice plant, straw, unpolished and polished rice were varied with the application rates of the pesticides. The residues of Fujione and Ortran in unpolished rice were 0.07~0.09ppm and 0.01~0.53ppm, respectively. The half life of Fujione was 30 days under aerobic and 150 days under flooded Condition in the laboratory system. Whereas in the paddy field it was about 100 days. In the case of Ortran it was 3~4 days ana 13~14 days in aerobic and flooded condition, respectively in laboratory system.

일부 산모에서 산모혈, 제대혈, 모유 및 태반에서의 환경 에스토레겐성 화합물(PCBs) : Environmental estromgen compounds(PCBs) in Maternal Blood, Cord Blood, Human Milk and Placenta of Korea women

이강숙,임현우,노영만,구정완,조재천,박정일,김진홍 가톨릭대학산업의학센타 산업의학연구소 2003 韓國의 産業醫學 Vol.42 No.2

The production and intensive use of organochlorine chemicals, both in agriculture and industry, have led to wide spread contamination of the environment. There may be biological effects of organochlorine contaminated breast milk even when levels are below those concentrations that are currently regarded as tolerable. To evaluate the exposure of to fetus PCBs, we measured the sum of 13 congeners of PCBs in maternal blood, cord blood, breast milk and placenta of 30 Korean women by gas chromatograpy/electron capture detector. The concentration of total PCBs of maternal blood, cord blood and breast milk were 7.16±4.29 ㎍/ℓ, 5.16±3.12 ㎍/ℓ, 1.77±2.87 ㎍/ℓ respectively and they have no significant correlation. PCBs in placenta was not defected. However there were no significant differences of PCBs according to age, education, body mass index, parity, breastfeeding, smoking and drinking.

산업재해 근로자의 직장복귀 예측요인

정원미,박정일,구정완,노영만 大韓産業醫學會 2003 대한직업환경의학회지 Vol.15 No.2

목적: 본 연구는 산업재해 근로자의 직장복귀에 유의하게 영향을 미치는 요인을 알아봄으로써 산업재해근로자의 직장복귀를 위한 재활 프로그램 수립을 위한 기초자료를 제시하고자 수행되었다. 방법: 근로복지공단 36개 지사로부터 2001년 1월부터 3월까지 접수된 13,903명의 장해보상청구서 복사본을 수집하여 이들 중 직업병자 및 외국인 근로자를 제외한 13,385명을 대상으로 계통표본추출하여 3,658명을 연구대상으로 하였다. 3,658명의 장해보상청구서로부터 인구사회학적, 사업장 및 장해 특성, 그리고 국민건강보험공단의 전산자료로부터 부양자수, 직장복귀여부 등에 관한 정보를 얻었으며 카이제곱 검정과 다변량 로지스틱 회귀분석을 이용하여 직장복귀 예측요인을 알아보았다. 결과: 직장에 복귀하지 못하는 유의한 예측요인은 다음과 같다. 인구사회학적 특성에서의 예측요인은 여성, 고령자 그리고 근무기간 2~6년에 비하여 6개월 미만이었다. 사업장 특성의 예측요인은 사업장 규모가 200인 이상에 비하여 29인 미만인 경우, 사업종류가 제조업에 비하여 전기·가스·수도업이었다. 장해관련 특성에서의 예측요인은 상해부위가 손가락에 비하여 발인 경우, 상해종류는 다른 종류에 비하여 골절인 경우이었다. 그리고 장해결과 특성에서의 예측요인은 10~14등급인 경우에 비하여 1-4등급인 경우, 요양기간이 180일 이상인 경우이었다. 결론: 여성, 고령자, 사업장 규모가 작은 경우 그리고 전기·가스·수도업에 종사하는 근로자들이 직장복귀를 하지 못하는 예측요인으로 나타남으로써 이들을 대상으로 한 재활프로그램 계획 수립에 보다 관심을 기울여야 될 것이다. Objectives: In order to obtain information useful in setting up occupational rehabilitation programs, an evaluation was conducted to determine predictive factors of workers' return to work after an occupational injury. Methods: 13,903 records of registered occupationally injured cases identified to have received disability compensation in 1998 were collected from the 36 branch of Korean Labor Welfare Corporation(KLWC). Through simple systematic sampling, a total of 3,658 cases were selected as final subjects. Status of return to work, general characteristics, workplace characteristics, disability characteristics and disability outcome characteristics were collected from the KLWC and National Health Insurance Corporation records (NHIC). For statistical analyses, chi-square test and stepwise multiple logistic regression analysis were applied using the SAS software package program. Results: Negatively affecting significant predictive factors for return to work were included the female gender, age of 50 years or older, 6 month or less of work duration, 1 or less family dependents, workplace with 200 or less employees, electric·gas·waterwork companies, foot injuries compared to finger injuries, fall from elevation, high degree of disability claims (1-4 grade), and period of medical care more than 181 days. Conclusions: The results suggest that the poor rate return to work in occupationally injured workers' is particularly affected by female gender, older-aged employees, and workers employed by electric·gas·waterwork companies. Also, it was more difficult to return to work for workers who received injuries from a fall from elevation and who had longer period of medical care (more than 181days). It is strongly recommended that more efficient and systematic occupational rehabilitation programs be set up, taking into consideration the above mentioned factors.

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.

Review of 100 cases of single port laparoscopic cholecystectomy

Eun Jung Koo,Soon Hwa Youn,Yang Hyun Baek,Young Hoon Roh,Hong Jo Choi,Young Hoon Kim,Ghap Joong Jung 대한외과학회 2012 Annals of Surgical Treatment and Research(ASRT) Vol.82 No.3

Purpose: Single port laparoscopic cholecystectomy (SPLC) is a new advanced technique in laparoscopic surgery. Many laparoscopic surgeons seek to gain skill in this new technique. However, little data has been accumulated and published formally yet. This article reports the achievement of 100 cases of SPLC with the hopes it will encourage laparoscopic surgery centers in the early adoption of SPLC. Methods: A retrospective review of 100 prospectively selected cases of SPLC was carried out. All patients had received elective SPLC by a single surgeon in our center from May 2009 to December 2010. Our review suggests patients’ character, perioperative data and postoperative outcomes. Results: Forty-two men and 58 women with an average age of 45.8 years had received SPLC. Their mean body mass index (BMI) was 23.85 ㎏/㎡. The mean operating time took 76.75 minutes. However, operating time was decreased according to the increase of experience of SPLC cases. Twenty-one cases were converted to multi-port surgery. BMI, age, previous low abdominal surgical history did not seem to affect conversion to multi-port surgery. No cases were converted to open surgery. Mean duration of hospital stay was 2.18 days. Six patients had experienced complications from which they had recovered after conservative treatment. Conclusion: SPLC is a safe and practicable technique. The operating time is moderate and can be reduced with the surgeon’s experience. At first, strict criteria was indicated for SPLC, however, with surgical experience, the criteria and area of SPLC can be broadened. SPLC is occupying a greater domain of conventional laparoscopic cholecystectomy.

Antigenieity Study of CFA-001,Cefazolin,a Cephalosperin Derivative Produced by an Enzymatic Semisynthesis

Park, Jong Il,Han, sang seop,Jeong, Tae Cheon,Roh, Jung Koo,Kim, Hyoung Chin,Kim, Jeong Hwan,Jeon, Yeong Joong,Kim, Dal Hyun,Kim,Je Hak,Park, Kwan Ha 한국응용약물학회 1997 Biomolecules & Therapeutics(구 응용약물학회지) Vol.5 No.1

The antigenic potential of CFA-001, cefazolin, a cephalosporin derivative produced by an enzymatic semisynthesis, was determined in Hartley guinea pigs. A battery of tests employed consisted of active systemic anaphylaxis (ASA), passive cutaneous anaphylaxis (PCA), and indirect hemagglutination test (IHA). The results were as follows: 1) In ASA, no signs attributable to anaphylaxis was observed in guinea pigs sensitized with CFA-001, whereas OVA-sensitized animals induced severe anaphylactic symptoms; 2) guinea pigs did not produce antibodies against CFA-001 when sensitized with or without Freund's complete adjuvant (FCA) in homologous PCA tests. Meanwhile, antibodies against ovalbumin (OVA) were clearly detected; 3) No CFA-001-specific hemagglutination was observed in the IHA using sera obtained from CFA-001-sensitized guinea pigs. These results suggest that CFA-001 has no antigenicity potential in guinea pigs.

대학생들의 자살관련행동에 관한 연구

노명선,전홍진,이해우,이효정,한성구,함봉진 大韓神經精神醫學會 2007 신경정신의학 Vol.46 No.1

Objectives : This study evaluated the prevalence of suicide-related behaviors (suicidal ideation, plan and attempt) and the status of depression, anxiety and function in college students. Methods : A cross-sectional study was completed to a sample of 880 students with the self-administered form of Korean version of the Mini International Neuropsychiathc Interview (K-MINI), Beck Depression Inventory (BDI) and Beck Anxiety Inventory (BAI). Results : Estimated lifetime prevalence of suicidal ideation was 39.2%, that of suicidal plan was 4.7% and that of suicidal attempt was 3.0%. Students with any suicide-related behaviors showed higher lifetime prevalence of major and minor depression, higher BDI and BAI scores, and poor intemersonal relationship, adaptation to college life and physical health compared to the students with no suicide-related behaviors. The average points of grades during their college life were not significantly different according to kinds of suicide-related behaviors they expehenced (F=0.39, P=0.82). 96% of suicidal attempters did not use mental health services. Conclusion : Results suggest that a high proportion of college students experience suicide-related behaviors. The Stu-dents who had experienced suicide-related behaviors showed higher depression and anxiety and poorer function compared to students with no suicide-related behaviors. Most of suicidal attempters, however, did not use mental health service Establishing campus mental health system is necessary to early detect mental health problems and to prevent suicide of college students.

Temperature Analysis of Nozzle in a FDM Type 3D Printer Through Computer Simulation and Experiment

( Jung Hyun Park ),( Min-young Lyu ),( Soon Yong Kwon ),( Hyung Jin Roh ),( Myung Sool Koo ),( Sung Hwan Cho ) 한국고무학회 2016 엘라스토머 및 콤포지트 Vol.51 No.4

Additive manufacturing (AM), so called 3D Printing is a new manufacturing process and is getting attraction from many industries. There are several methods of 3D printing. Among them fused deposition modeling (FDM) type is most widely used by reason of cheap maintenance, easy operation and variety of polymeric materials. Articles manufactured by 3D printing have weak deposition strength compared with conventionally manufactured products. Deposition strength of FDM type 3D printed article is highly dependent of deposition temperature. Subsequently the nozzle temperature in the FDM type 3D printing is very important and it is controlled by heat source in the 3D printer. Nozzle is connected with heat block and barrel, and heat block contains heat source. Nozzle becomes hot through heat conduction from heat source. Nozzle temperature has been predicted for various thermal boundary conditions by computer simulation and compared with experimental measurement. Nozzle temperature highly depends upon thermal conductivities of heat block and nozzle. Simulation results are good agreement with experiment.