• Proceedings of the Zoological Society Korea Conference
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• 1997.10b
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• pp.151.1-151
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• 1997

No Abstract, See Full Text

• Proceedings of the PSK Conference
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• 2000.10a
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• pp.255.3-256
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• 2000

• Particle and aerosol research
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• v.18 no.2
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• pp.23-35
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• 2022

Recently, passengers using public transport are concerned about the effects of COVID-19 and fine dust. Therefore, from February 2020 to February 2021, we investigated whether SARS-CoV-2 RNA was detected even after disinfection in 55 public transportation places visited by confirmed patients in Seoul. 34 air samples and 702 object surface samples were collected and tested with RT-PCR, one surface sample was positive. In addition, preemptive investigations were conducted in 22 subway trains that passengers were being on board at that time. 1,018 preemptive tests were performed, and all were negative. Although PM-2.5 is dangerous in itself, it can be a potential carrier of viruses. It seemed that a solution was needed as one line continuously exceeded the criteria of PM-2.5. Through this study, it is judged that cluster infection in public transportation can be prevented if efforts to reduce the concentration of fine dust, appropriate disinfection management, and personal disinfection such as wearing a mask in public transportations.

• Journal of Microbiology and Biotechnology
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• v.22 no.2
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• pp.256-263
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• 2012

A strain of bacterium producing antifungal antibiotic was isolated and identification of the strain was attempted. We could identify the bacterium as being a Bacillus sp., based on morphological observation, physiological characteristics, and 16S rDNA sequence analysis, thus leading us to designate the strain as Bacillus sp. AH-E-1. The strain showed potent antibiotic activity against phytopathogenic and human pathogenic fungi by inducing mycelial distortion and swelling and inhibiting spore germination. The antibiotic metabolite produced by the strain demonstrated excellent thermal and pH (2-11) stability, but was labile to autoclaving. From these results, we could find a broader antifungal activity of Bacillus genus. Isolation and characterization of the active agent produced by the strain are under progress.

• Korean Journal of Health Education and Promotion
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• v.29 no.3
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• pp.63-74
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• 2012

Objectives: We aim to investigate association between health behavior, interpersonal/organizational environment and job stress among government officials. Methods: Through health examination and a survey, this cross sectional study investigated 543 government officials working at Central Government Complex in Seoul, Korea. Health behaviors included alcohol drinking, smoking, moderate exercise and food frequency. Interpersonal environment was measured by health behavior practices of significant others and social support for health promotion. And the measures of organizational environment included facilities for exercise, health related norms and health supportive organizational systems. Job stress was assessed by short version of Korean Occupational Stress Scale(KOSS). Results: The level of job stress among female officials was higher than that of male officials. Multivariate logistic model suggested that higher job stress in male officials was significantly associated with lower position(OR=0.267, p<.01) less grain intake(OR=0.642, p<.05), lower level of social support(OR=0.810, p<.01) and abdominal obesity(OR=2.407, p<.05). On the contrary, female officials' stress level was negatively associated with healthy organizational environment(OR=0.725, p<.05). Conclusions: It is suggested that addressing job stress require tailoring intervention by gender characteristics and integration of interpersonal and organizational level approaches.

• Korean Journal of Veterinary Service
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• v.29 no.2
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• pp.97-102
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• 2006

A total of 1,848 samples was taken from bovine and porcine from January 2003 to November 2005. They were examined for the presence of Clostridiuml perfringens. The properties of the isolates were characterized for Gram staining, biochemical features and enterotoxin production. Forty-one strains (2.2%) of C perfringens were isolated from the 1,848 bovine and porcine carcass using selective media. 30 (3.2%) C perfringens were isolated from the 925 of bovine cacasses, and 11(1.2%) were isolated from the 923 of porcine cacasses. In TSC agar, all isolates showed lecithinase activity. The isolation rate was higher in spring and summer than in autumn and winter. Among 41 isolates, only 1 isolate detected the cpe gene in PCR. The PCR amplified band was observed 233 bp.

• Architectural research
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• v.17 no.3
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• pp.93-99
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• 2015

With a view to the residential environment plan to improve the quality of life and health status of dwellers, the purpose of this study is to explore the co-relation between pedestrian environment and health performance in apartment complexes and to analyze the residents' evaluations on pedestrian environment for 'pedestrians-friendly residential environment'. The method of this study was research review and questionnaire survey research. Questionnaire surveys were conducted with the housewives at the two subject apartments in Busan. Based on tools to assess pedestrian environment, this study analyzed correlation between health-related satisfaction with residential environment and satisfaction with pedestrian environment. Satisfactions with pedestrian environment showed a strongly positive (+) correlation with contentment with health-related residential environment Second, this study analyzed residents' use, demands, and satisfaction for pedestrian environment. More active pedestrian environment are required (i.e. a trail or sports facilities) to create residential environment which could support the enhancement of physical health To perform the mean comparative analysis and correlation analysis of the survey results, PASW 18.0 was used.

• Safety and Health at Work
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• v.1 no.1
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• pp.98-101
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• 2010

This study explored the health hazard of those exposed to methylene chloride by assessing its atmospheric concentration when a tear gas mixture was aerially dispersed. The concentration of methylene chloride ranged from 311.1-980.3 ppm (geometric mean, 555.8 ppm), 30 seconds after the dispersion started. However, the concentration fell rapidly to below 10 ppm after dispersion was completed. The concentration during the dispersion did not surpass the National Institute for Occupational Safety and Health 'immediately dangerous to life or health' value of 2,300 ppm, but did exceed the American Conference of Governmental Industrial Hygienists excursion limit of 250 ppm. Since methylene chloride is highly volatile (vapor pressure, 349 mmHg at $20^{\circ}C$), the post-dispersion atmospheric concentration can rise instantaneously. Moreover, the o-chlorobenzylidenemalononitrile formulation of tear gas (CS gas) is an acute upper respiratory tract irritant. Therefore, tear gas mixtures should be handled with delicate care.

• Korean Journal of Microbiology
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• v.42 no.4
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• pp.252-256
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• 2006

We monitored antibiotic resistance of Escherichia coli isolates from healthy volunteers of community and hospital patients from February to July in 2006. From disc diffusion test on 4915 E. coli isolates from healthy volunteers of the community, the resistance rates were as follows; tetracycline resistant, 46.6%; ampicillin resistant, 41.1%; ticarcillin resistant,37.9%. From disc diffusion test on 120 E. coli isolates from hospital patients, the resistance rates were as follows: ampicillin resistant, 66.9%; ticarcillin resistant, 63.8%; tetracycline resistant, 47.2%. Extended spectrum $\beta$-lactamase producing E. coli were isolated 0.6% and 4.1% from healthy volunteers and hospital patients.

• Korean Journal of Veterinary Service
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• v.31 no.2
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• pp.207-217
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• 2008

This study was carried out to investigate the prevalence of fascioliasis of slaughtered and farmed cattle in Gwangju area from February to November in 2007. A total of 1,000 cattle fecal samples were collected from slaughter houses (n=805) and farms (n=185). Twelve (1.2%) were found as positive cases with excretion of the egg of Fasciola spp in the fecal specimens, and 128 (12.8%) were positive in intestinal parasitism using the flotation and sedimentation procedures. The infection rate of fluke larvae from the slaughtered cattle at abattoirs in Gwangju was 0.75% (6 out of 805 heads). In histopathology, there were several liver lesions such as inflammation with infiltration of eosinophil, polymorphonuclear cells, mononuclear cells and multinucleated giant cells, proliferation of connective tissue, calcification and abscess formation.