용접공들의 면역능에 관한 연구

이수일,조봉수,김영욱,고광욱,조원근,김영실,강수용,황인경,조병만,김돈균 大韓産業醫學會 1997 대한직업환경의학회지 Vol.9 No.1

The authors examined human immunity indicators such as CD4, CD8, Natural Killer(NK) cell, IgG, IgA, and IgM, and heavy metals such as Pb, Cr, Cd to evaluate the health hazard of welders. We selected total 126 male subjects, 60 welders who had more than 5 year working history as an exposure group, and 66 office workers and medical college students as a control group. This immunity evaluation approach is the first newly designed study that has never been tried in past studies on welder's heath evaluation. And the results were as follows. 1. Total lymphocyte count of peripheral blood was significantly higher in welder group, 2,615±650 ea/㎕ compared with 2,368±681 ea/㎕ in control group(p>0.05). 2. The proportion of CD4, CD8, NK cell in welder group was 37.5±9.4%, 24.0±8.8%, and 21.0±9.5%, respectively, and 35.5±6.5%, 25.0±6.9%, and 19.6±8.8% in control group. CD4 and NK cell were slightly higher, and CD8 was slightly lower in welder group. but there was no statistical significance between two groups(p≥0.05). 3. IgG, IgA, and IgM in welder group were 15.9㎎/㎗, 2.7㎎/㎗ and 1.5㎎/㎗, respectively, and 15.6㎎/㎗, 2.9㎎/㎗ and 1.7㎎/㎗ in control group. There was no statistical significance between two groups(p≥0.05). 4. Blood lead, cadmium and chromium concentrations were 4.2±1.8㎍/㎗, 0.4±0.38㎍/㎗, 1.2±0.6㎍/㎗ in welder group and 3.2±1.7㎍/㎗, 0.44±0.29㎍/㎗, 1.1±0.6㎍/㎗ in control group, respectively, and these value were within normal ranges.

HPLC를 이용한 Alnus속 식물에서의 diarylheptanoids의 정량분석

정동욱,김준식,조수민,이연아,김광호,김세원,이민원 중앙대학교 약학연구소 1999 약학 논총 Vol.13 No.-

Quantitative determination of diarylheptanoids (oregonin and hirsutanonol), which were characteristic components of Alnus spp. has been conducted by High Performance Liquid Chromatography. The HPLC analysis was carried out using an YMC J'sphere ODS-H80 column [150×4.6mm, S-4μm. 80A(particle)] and a combination of acetonitrile and H2O was used as mobile phase in gradient solvent system. The results showed differnce in the species (Alnus japonica, A hirsuta and A. hirsuta var. sibirica)

유아 무용 교육이 유아의 긍정적 자아개념에 미치는 영향

이광욱,조연숙,정일호,강성환 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.4

The purpose of this study was to examine through 24weeks whether dance education with 6-year old preschool-Kindergarten may increase positive self-concepts. The results of analysis of self-concept's change that the dance education served K kindergarten and not in the S kindergarten in Seoul were as follows. 1. There is a statistically significant relation of the generally satisfactory self-concepts between the two preschool-Kindergarten groups(P<0.05). It means that the development of satisfactory self-concepts are generally influenced by dance education programs. 2. There was no statistically significant relation of the same-aged children's self-concepts between the two preschool-Kindergarten groups (P>0.05). It means that the same-age children's self-concepts are not influenced effectively by dance education programs. 3. There was no statistically significant relation of the children's self-concepts about their teachers and kindergartens between the preschool-Kindergarten groups(P<0.05). It means that their teachers and kindergartens the children's self-concepts are not influenced effectively by dance education programs. 4. There was no statistically significant relation of the children's self-concepts about their classes between the two preschool-Kindergarten groups(P<0.05). It means that the children's self-concepts about their classes are not influenced by dance education programs. 5. There was no statistically significant relation of the children's self-concepts about their physical exercises between the two preschool-Kindergarten groups(P<0.05). It means that the children's self-concepts about their physical exercises are not influenced by dance education programs.

병원근무자에 대한 특수건강진단 적용 가능성에 관한 연구

이수일,조병만,조봉수,김영욱,고광욱,문남출,김주원 大韓産業醫學會 1996 대한직업환경의학회지 Vol.8 No.2

병원근무자들에 대한 특수건강진단 적용 여부를 판단하기 위한 기초자료를 제공하기 위해 1995년 3월 10일부터 4주간에 걸쳐 부산시내에 위치하는 2개 종합병원 근무자 830명을 대상으로 설문조사를 시행해 얻은 결과를 요약하면 다음과 같다. 1. 조사된 43개 항목 중 10% 이상의 대상자가 유해요인에 폭로되고 있다고 응답한 항목은 소음, 분진 등 16개 항목이었다. 이 중 분진, 소음 및 스트레스는 연구대상자의 50%이상에서 폭로되고 있다고 응답했으며 그 외 알콜류 소독제(41.3%), 방사선(34.6%), 일반약제(33.3%)의 순으로 폭로되고 있었고 VDT의 경우 25.2%, aldehyde류는 18.7%에서 폭로되고 있는 것으로 나타났다. 2. 대상자의 63.1%에서 병원근무 환경 중에 유해인자가 존재한다고 응답했고 병원의 환경측정이 필요하다고 대답한 사람은 80%에 달했다. 35.7%가 유해인자에 대한 교육을 받은 적이 없다고 응답했다. 전체 응답자의 35.7%가 유해인자에 폭로시 보호 장비를 착용하지 않는다고 응답했고 주기적인(격년) 건강진단은 48.6%에서 받는 것으로 조사되었다. 근무부서의 환기상태는 7.2%만이 좋은 편이라고 응답했다. 이상에서 살펴본 바와 같이 병원근무자들이 여러 가지 유해환경에 노출되고 있고 또, 이로 인해 발생할 수 있는 건강장해에 대한 예방대책이 소홀한 것으로 나타나 병원의 작업환경측정의 시행이 필요하고 이 결과를 바탕으로 병원근무자들에 대한 특수건강진단 적용여부를 결정해야 할 것이다. This study was performed to decide the possibility of special health examination to the hospital employees. We carried out questionnaire survey for 830 subjects at 2 general hospitals located in Pusan city. The summary of this study are as follows. 1. Above 10% of total hospital employees were replied that they exposed to 16 hazard items, such as dust, noise, stress and etc. Among them, over 50% of hospital employees exposed to dust(69.8%), noise(52.3%), stress(60.1%). And hospital employees exposed to alcoholic disinfectant(41.3%), radiation(34.6%), drug(33.3%), VDT(25.2%), and aldehyde(18.7%) also. 2. 63% of the hospital employees replied that there were hazardous factors in hospital environments, and 80% insisted the necessity for hospital environment measuring. 35.7% of respondents replied that they had never taken the education about hazardous factors. 35.7% of the total respondents answered that they didn't use protective equipment when exposed to hazardous factors. And 48.6% answered they took periodic health examination. Only 7.2% replied that ventilation condition of office room was proper. As shown in above results, hospital employees are exposed to various hazards, and turn out neglecting to health problems caused these hazardous factors. So at first, it is necessary to measuring hospital working environment, and then will be decided the possibility of special health examination to the hospital employees.

보건관리 대행사업 평가도구의 타당성, 신뢰도 및 인과관계 검증에 관한 연구

박정일,조병희,구정완,김광종,김현욱,원종욱,이명숙,정문희 가톨릭대학교 산업의학센터 2001 韓國의 産業醫學 Vol.40 No.1

In order to verify the validity, reliability and relativeness of preliminary evaluation tool for the group occupational health services(GOHS), a questionnaire survey for doctors, nurses and hygienists of 18 GOSH institutions, and employers, health managers and employees of 340 enterprises was conducted. A factor analysis and correlation test for the statistical validity of the variables in the evaluation tool, a Chronbach's Alpha value for the reliability in the evaluation indices and a regression analysis for the relations of the evaluation model were performed. The results were as follows: 1.In factor analysis, thirty-three variables among 43 variables were selected as significant variables, ie 9 out of 11 for input index, 11 out of 14 for throughout index and 13 out of 18 for out put index. 2.Three evaluation(outcome) scales(evaluation by employer, health manager and employee) which composed of 16 identical items were used. 3.The Chronbach's Alpha values of input, throughout, out put and outcome indices were 0.5221, 0.5473, 0.7122 and 0.8546 respectively. 4.Regression equations of independent variables on the evaluation scales of employer, health manager and employee were all statistically significant.

新鮮 채소류의 Plastic film 包裝材에 關한 硏究

閔龍圭,朴相旭,趙光衍 충북대학교 농업과학기술연구소 1987 農業科學硏究 Vol.5 No.1

In order to determine shelf life and proper packaging material, polyethylene, polypropylene, polyvinyl chloride, polyester, oriented polypropylene and cellophane films were used to package sweet pepper and crisphead lettuce. The best result was obtained for sweet pepper in 0.03mm OPP film which showed shelf life of 41 days and weight loss 0.44% at low temperature. For crisphead lettuce it was obtained in PET film which showed shelf life of 40 days and weight loss 1.91% at low temperature. Shelf life of sweet pepper was extended up to 11 days at room temperature storage and 22 days at the low temperature storage. That of crisphead lettuce was extended up to 8 days at the room temperature storage and 37 days at the low temperature storage.

자발적 운동이 고령자의 혈액성분에 미치는 영향

정일호,이광욱,조명곤 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.2

The purpose of this study was to compared the blood variance following spontaneously exercise for 10weeks in healthy the elderly. When spontaneously exercise, for 10 weeks in exercise intensities between low and middle exercise intensities was participated, the HDL-C in factors of anti-atherosclerosis increased highly. Also, HDL-C/Total-C and HDL-C/LDL-C ratio in atherosclerosis index was improved. The results suggest that, in general, in participation aerobic exercise spontaneously was prevented on disease of lifestyle in the elderly.

傳染性單核球增加症 1例 報告

金相仁,高光昱,趙漢翊,崔玲姬,崔勇,李在英 대한의학협회 1972 대한의학협회지 Vol.15 No.6

Chitosan 濾過 System을 利用한 새로운 中水道 工程의 開發과 溫泉水 淨化에 관한 硏究

김용범,백광욱,안병제,조영주,심재용 서울産業大學校 1994 논문집 Vol.39 No.1

각종 금속이나 중금속을 비롯하여 각종 오염물(SS, COD, BOD, CI 등)을 강력히 흡착제거하는 성능을 가진 chitosan(Cs)응집제와 여과사(SF) 및 활성탄 column(ACC)을 병용하여 hotel잡수와 온천사용수등의 정화실험을 행하여 생물학적 처리과정을 생략할 수 있는 사용수의 재활용 process(Fig. 1)를 개발하였다. 이 process에서 hotel 잡수의 경우 20ppm의 chitosan 투입으로 1차응집 처리하여 약 60%이상의 오염물을 제거한 후 여과사와 활성탄 column을 이용하여 최종적으로는 80~99%의 오염물을 제거할 수 있었다. 또한 온천수의 경우 20ppm의 chitosan 투입으로 1차응집 처리하여 약 50%이상의 COD와 BOD의 제거율을 달성할 수 있었다. 따라서 이러한 process를 산업현장에 적용할 경우 종전의 생물학적 공정을 생략하거나 소규모화하여 보다 간편하며 처리공간이나 경비등을 절감하면서도 사용수를 방류수 또는 재활용수 기준이내로 처리할 수 있음을 확인하였다. 본 연구는 수자원 보호나 수자원 재활용면에서 크게 기여 되리라 믿는다. A simplifid and economic process for recycling the used water discharged from a large scale residence(e. g. hotel and apartment etc.) was developed. The used water was purified through adsorption and flocculation of contaminants by chitosan at the first stage where the average removal rates of COD and BOD of the used water were found more than 60%. The previously treated water through flocculation by chitosan was subjected to filtration systems of a sand filter and an activated carbon column, and the average removal rates of COD and BOD were found more than 80%. The experimental results suggest that the biological process which is very popular in the treatment of the used water for the removal of COD and BOD can be omitted and expected to reduce a spacial and running expenditure. On the other hand, testing the used water discharged from hot springs with chitosan proves a possibility of development of a simple and economical process for the treatment of the used water to the criteria of recycled water quality without any addition of more complicated equipments and facilities.

Fosfomycin의 항균효과 및 capillary electrophoresis에 의한 측정법에 관한 연구

윤효인,박승춘,이규승,권진욱,조준형,신광순,김무열,허강준,조명행 충남대학교 수의과대학 동물의과학연구소 1996 動物醫科學硏究誌 Vol.4 No.-

Fosfomycin, a low molecular antibiotic, is to be easily synthesized, therefore to be possibly used in veterinary sectors due to econimic reasons. In this study, we determined the antibacterial activities of fosfomycin against some domestic animal-origin pathogens, and its combined effects with some important antibacterials available. We also compared detection methods of fosfomycin from various measuring instruments. The results obtained through this experiment were as follows: 1. Antibacterial activities of fosfomycin against the pathogens used in this experiment were appeared fairly low. We found the antobacterial activities depanded on the kinds of media and the addition of some material thereins, which suggests the importance of appropriate medium so as to judge the antibacterial activity of fosfomycin. 2. Fosfomycin showed varying antibacterial effects in combination with other antibacterials, which should be taken into consideration when combining other antobacterials especially in the clinical settings. Of the combined antivacterials, fosfomycin had synergistic effects in combination with amoxicillin but antagonistic effects with oxytetracyline. 3. Conventional detection methods using HPLC, GC and spectrophotometer were not appropriate to measure fosfomycin. Capillary electrophoresis by the way of the indirect ultraviolet detection method was good enough to detect fosfomycin in the range of expected concentration in tissues, with the limit of quantitation (LOQ) of 1.25 ㎍/㎖. We recommend the eletrophoresis method could be used to detect fosfomycin, thereby being able to set the optimal dosage for animals and providing the measures in relation with the residual concentration in the meat.