한국인 직무 스트레스 측정도구의 개발 및 표준화

장세진,고상백,강동묵,김성아,강명근,이철갑,정진주,조정진,손미아,채창호,김정원,김정일,김형수,노상철,박재범,우종민,김수영,김정연,하미나,박정선,이경용,김형렬,공정옥,김인아,김정수,박준호,현숙정,손동국 大韓産業醫學會 2005 대한직업환경의학회지 Vol.17 No.4

Background and Purposes: Over the past three decades, numerous studies performed in Korea have reported that job stress is a determinant risk factor for chronic diseases and work disability. Every society has its own culture and occupational climate particular to their organizations, and hence experiences different occupational stress. An occupational stress measurement tool therefore needs to be developed to estimate it objectively. The purpose of this study is to develop and standardize the Korean Occupational Stress Scale (KOSS) which is considered to be unique and specific occupational stressors in Korean employees. Subjects and Methods: Data were obtained from the National Study for Development and Standardization of Occupational Stress (NSDSOS Project: 2002-2004). A total of 12,631 employees from a nationwide sample proportional to the Korean Standard Industrial Classification and the Korean Standard Occupational Classification were administered. The KOSS was developed for 2 years (2002-2004). In the first year, we collected 255 items from the most popular job stress measurement tools such as JCQ, ERI, NIOSH and OSI, and 44 items derived from the a qualitative study (depth interview). Forty-three items of KOSS, in the second year, were retained for use in the final version of the KOSS by using Delphi and factor analysis. Items were scored using conventional 1-2-3-4 Likert scores for the response categories. Results: We developed eight subscales by using factor analysis and validation process: physical environment (3 items), job demand (8 items), insufficient job control (5 items), interpersonal conflict (4 items), job insecurity (6 items), organizational system (7 items), lack of reward (6 items), and occupational climate (4 items). Together they explained 50.0% of total variance. Internal consistency alpha scores were ranged from 0.51 to 0.82. Twenty-four items of the short form of the KOSS (KOSS-SF) were also developed to estimate job stress in the work setting. Because the levels of the subscales of occupational stress were gender dependent, gender-specific standard norms for both the 43-item full version and the 24-item short form using a quartile for the subscales of KOSS were presented. Conclusion: The results of this study suggest that KOSS might be an appropriate measurement scale to estimate occupational stress of Korean employees. Further and more detailed study needs to be conducted to improve the validity of this scale.

관동맥질환에서 저밀도 지단백 입자 크기의 분포

임효영,김인숙,승기배,강동헌,전두수,장기육,박준철,이수영,홍순조,최규보 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.8

진양호 수질의 영양상태 평가에 관한 연구

강민수,김성우,이동근 경상대학교 환경보전연구소 1999 環境保全硏究所報 Vol.7 No.-

The purpose of this study was to assess trophic state of Chinyang Lake using monthly water quility data in 1998, and to suggest adequate protection method of water supply source. The results of water quality variations and trophic states were evaluated as follows; 1. Algae had rapidly grown from June, and this resulted in the increase of pH, Chlorophyll-a and COD. 2. The annual average ratio of COD by algal biomass to total COD was estimated to be 12% and had the highest value of 31.6% in June. 3. The ration of T-N/T-P was 53.7, and phosphorus became the liming factor for the eutrophication. 4. When considering T-P and Chlorophyll-a concentration, Chinyang Lake seems to be eutrophic state. 5. From the evaluation by TSI & LTSI methods, Chinyang Lake could become rapidly into eutrophic state.

Garcin 증후군으로 발현된 연골육종 1예

강성수,김명권,박현미,류근신,신동진 대한신경과학회 1999 대한신경과학회지 Vol.17 No.2

유기용제의 위해도 평가 및 일부유기용제의 생물학적 폭로지표

강성규,이동배,이영수 충남대학교 의과대학 지역사회의학연구소 1993 충남의대잡지 Vol.20 No.1

This study was to estimate the total amount of domestic and imported organic solvents production. Potential hazard was evaluated through the amount and physical properties. According to his primary risk assessment, toluene, MEK and perchloroethylene were chosen to analyze the solvents in air and their metabolites in blood and urine for using in biological monitoring in the future. The results were as follws. 1. The amount of organic solvent consumption was about 3 million tons in 1989. Of all organic solvents, 70% were aromatic hydrocabons, 12% alcohols, 5% ketones, 3% aliphatic hydrocabons respectively. Xylene in aromatic hydrocabons, cyclohexane in aliphatic hydrocarbons, methanol in alcohols, acetone in ketones, and trichloroethylene in chlorinated hydrocarbons have been more frequently consumed. 2. Benzene was the most hazardous solvent followed by carbon tetrachloride, methanol, toluene, xylene and its derivatives, dichloromethane, chloroform, ethylene tetrachloride, cyclohexane and MEK. respectively. Of the chlorinated hydrocabons, all except methylchloroform were relatively, hazardous in this assessment. 3. The MEK in urine was a good indicator to pridice MEK exposure. The MEK in blood had high correlation with the MEK in urine. Both the blood and urine MEK were more specific when subjects were exposed to higher level. The urine and blood MEK corresponded to exposure of 200ppm MEK were 1.37mg/l and 2.83mg/l 4. The perchloroethylene in blood and trichloroactic acid in urine were good indicators to predict perchloroethylene exposure. Both the pechloroethylene in blood and trichloroacetic acid in urine were more specific when subjects were exposed to higher level. The perchloroethylene in blood and trichloroacetic acid in urine corresponded to exposure of 50ppm perchloroethylene were 1.43 mg/l and 2.56mg/l 5. The hippuric acid in urine and toluene in blood were good indicators to predict toluene exposure. The corrected hippuric acid with creatinine was more useful to exposure to toluene. The toluene in blood was more useful than the hippuric acid in urine, even if subjects were exposed to lower level. The hippuric acid in urine and toluene in blood corresponed to exposure of 100ppm toluene were 1.71g/g creatinine and 2.06mg/1.

黃土에서 分離한 顔料에 對한 硏究

姜淙熙,呂壽東 慶北工業專文大學 1966 論文集 Vol.3 No.-

감귤 과피 oleoresin의 carotenoid 색소 및 열안정성

강동수,배태진 麗水大學校 産業基術硏究所 1999 産業基術硏究所 論文集 Vol.8 No.-

This experiment studied on the change of carotenoid pigments and its stability in modified oleoresin from tangerine peel during thermal treatment at high temperature. Violaxanthin among carotenoid pigments of raw tangerine peel, was most abundant colorant (18.84mg%) followed by cryptoxanthin-(17.88mg%), luteoxanthin(7.93mg%), antherxanthin(5.16%), phytoene(3.78%) and zeaxanthin(3.48mg%). Oleoresin was acquiesce in the same order of raw tangerine peel. The transmiting ranges of twelve color components from raw tangerine peel to oleoresin were 72.8~89.5%. Transmittal of carotenoid pigments was over 85% in neoxanthin, lycopene, violaxanthin and cryptoxanthin, and over 70% in α- carotene, lutein and luteoxanthin. The sums of twelve color component contents in oleoresin tangerine peel were remained 67.1% and 45.2%, respectively, after thermal treatment for 60 minutes at 10℃ and 200℃ under air circumstance, but those under nitrogen circumstance were 89.8% and 81.4% respectively.

자연산 및 양식산 농어의 영양성분 비교

강동수,배태진,하봉석 여수대학교 1998 論文集 Vol.12 No.2

The differences in the contents of nutritive components of meat were examined between wild and cultured sea bass. Total amino acid contents of the wild sea bass were higher than that of the cultured one. The main amino acids in the both sea bass were glutamic acid, aspartic acid, leucine and lysine. The wild sea bass contained higher amounts of glycine than in the cultured sea bass. Total free amino acid contents of the cultured sea bass were higher than that of the wild one. In composition of free amino acid, taurine was abundant, and glutamic acid, glycine, alanine and histidine were the major free amino acids. The contents of glycine, alanine and histidine in the wild fish were higher than those in the cultured one, while the content of taurine was lower. In the contents of nucleotides and their related compounds, IMP was dominant, and followed ADP, AMP, in order. The contents of nucleotides and their related compounds in the cultured sea bass were markedly lower than that of the wild sea bass. In fatty acid composition, C16:0, C18:1, C22:6, C16:1 and C20:5 fatty acids were abundant. The wild sea bass showed higher levels in C16:1 and C18:1 fatty acids than the cultured sea bass, while the cultured sea bass contained much amont of C22:6 fatty acid.

Carotenoid 색소의 급이가 양식 농어의 영양성분에 미치는 영향

강동수 여수대학교 1998 論文集 Vol.12 No.2

To investigate the effects on body components of sea bass by the supplemented carotenoids, fish were fed the diet each containing β-carotene, lutein ester, astaxanthin, astaxanthin monoester and astaxanthin diester for 8 weeks. Amino acids, nucleotides and their related compounds and fatty acids in muscle were analyzed. The contents of total amino acid were higher in astaxanthin monoester group than in other groups. The contens of total free acid were higher in astaxanthin monoester group than in other groups. In astaxanthin monoester group, the contents of taurine, threonine, proline, alanine, leucine, lysine, histidine and arginine were markedly higher than that of other groups, while the content of glutamic acid was lower. IMPlevel in astaxanthin monoester group was higher than that of other groups by the greatly increased during feeding experimental diet. In astaxanthin monoester group, saturated fatty acids were decreased during feeding experimental diet, while polyunsaturated fatty acids were increased. In summary, the level of amino acids, nucleotides and their related compounds and polyunsaturated fatty acids were higher in astaxanthin monoester group than in other groups. This suggested that the deposition of carotenoid was affected on these body components.

준설수심에 따른 사천만의 해수유동 특성에 관한 연구

강대석,유상호,민일규,이동수,민병형 東亞大學校 海洋資源硏究所 2003 硏究論文集 Vol.15 No.-

This study on the characteristics of the tidal current at the half closed bay selected Sachoˇn Bay located in the western Kyung-nam area as the object location of the study. Then, I analyzed the current with the varying dredging depth after the depth integral of the three Dimensional continuous equation and Navier-stokes equation. The study would get the following results, and the results could be used meamingfully as the analysis material about the dredging depth's influnce on the surrounding ocean when developing the coastal port. 1. When measuring the tidal current, there is a bit dispersion in the current direction of the observed object, but it is the wind effect at the bay. Considering that the calculated result is the shallow-water equation integranted in depth, the results can be concluded to in accored with my expectancy. 2. In case of reclaiming and dredging, the flow velocity and direciton change constantly, compared with the present condition. 3. At the wide bay dredge depth does not arrect the level of the ocean, but in case of inflow from the flood, the increase of the inflow of the river water affects the level of the ocean. 4. As the dredge depth grows deep, the maximum flood tidal current and obb tidal current at the front coast of the reclaimed decreases a little. However, the wide area Pc-7~Pc-9 doesn't show any change. As we saw in the above result, feacturcs of the tidal current as the level of the ocean and the current velocity don't change in the aspect of the ocean engineering even if we increase the degree of the dredge depth up to 6m in Sachoˇn Bay