• Journal of Environmental Health Sciences
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• v.36 no.4
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• pp.255-263
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• 2010

In many fields, nanotechnology is leading to the development of purposely-engineered nanoparticles and devices demonstrating new, unique and non-scalable properties. However, concern has been expressed that these same properties may present unique challenges in terms of the potential health impact. Airborne particles associated with engineered nanoparticles are of particular concern, as they can readily enter the body through inhalation. Research into the potential occupational health risks associated with inhaling engineered nanoparticles is actively being conducted in the U.S. and globally. In this article, the potential occupational health effects of inhaled nanoparticles and methods for measuring exposure to nanoparticles are discussed. Critical research needs in this field are also briefly addressed.

• Environmental Analysis Health and Toxicology
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• v.20 no.4 s.51
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• pp.259-271
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• 2005

Engineered nanoparticles exhibit a variety of unique and tunable chemical and physical properties. These unique properties make the nanoparticles central components and widespread potential applications in nanoindustry. However, the potential toxicities of nanoparticles have not been fully evaluated. Recently, the impacts of nanoparticles to human and environment became the emerging issue of toxicology. In this article, physicochemical properties and toxicities of carbon nanotube, fullerene, quantum dots, and other types of nanomaterials were reviewed and the strategy of risk assessment were suggested based on the frame of chemical assessment.

• Korean Journal of Health Education and Promotion
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• v.23 no.3
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• pp.121-134
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• 2006

Objectives: This study was conducted to analyze the general properties of beauticians and to analyze correlation between their experiences of indigestion and relevant factors and thus to provide basic data to prevent obstacles to beautician's health. Methods: A self-administered survey on 257 female beauticians in Daegu from March 15 to May 30, 2005 was conducted. Cross-link analysis was used to examine indigestion in relation to the general properties of beauticians, and correlation analysis was used to determine the level of relationship between indigestion and relevant factors, and multiple regression analysis was used to determine the degree of effects of relevant factors on indigestion. Results: The results can be summarized as follows: 1. As for indigestion by general properties and beauty-related properties, there were significant differences in gender(p<0.01), age(p<0.05) and marriage status(p<0.05) among general properties and there were significant differences in the number of holiday(p<0.05), beauty culture career(p<0.01), and the degree of satisfaction on duty(p<0.001) among beauty-related properties. As for indigestion by eating habit and health-related properties, there were significant differences in the degrees of regular eating(p<0.001) and regular living habit(p<0.001), and eating speed(p<0.01). 2. Factors relevant to the eating habit showing significant correlation with indigestion were regular eating habit, taking well-balanced nutrition, and taking salty food. Among them, the regular eating habit was shown to be the most relevant with the correlation coefficient of -0.253(p<0.01). The general and beauty-related factors showing significant correlation with indigestion were beauty culture career, number of holiday, and regular living habit. And regular living habit was shown to be the most relevant with the correlation coefficient of -0.260(p<0.001). 3. Results from the regression analysis showed that relevant factors having significant effects on indigestion were gender, beauty culture career, satisfaction on duty, eating speed, regular eating habit and regular living habit. And satisfaction on duty was found to have the greatest effect on indigestion. Conclusions: The findings of this study could be effectively used to develop a practical management strategy to prevent $beauticia{\acute{n}}s$ indigestion, and to promote $beauticia{\acute{n}}s$ health, and ultimately to improve the $beauticia{\acute{n}}s$ quality of life.

• Microbiology and Biotechnology Letters
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• v.51 no.4
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• pp.353-373
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• 2023

Kimchi is a traditional Korean dish made with salted fermented vegetables and contains various nutrients and functional substances with potential health benefits. The fermentation process used to make kimchi creates chemical changes in the food, developing nutrients and functional substances that are more easily absorbed and enhanced by the body. Recent studies have shown that several lactic acid bacteria strains isolated from kimchi exhibit probiotic properties and have several health benefiting properties such as such as anticancer, anti-obesity, and anti-constipation; they also promote colon health and cholesterol reduction in in vitro and in vivo experiments, as well as in epidemiological cohort studies. Kimchi contains prebiotics, non-digestible fibers that nourish beneficial gut bacteria; therefore, its intake effectively provides both probiotics and prebiotics for improved gut health and a fortified gut-derived immune system. Furthermore, fermentation of kimchi produces a variety of metabolites that enhance its functionality. These metabolites include organic acids, enzymes, vitamins, bioactive compounds, bacteriocins, exopolysaccharides, and γ-aminobutyric acid. These diverse health-promoting metabolites are not readily obtainable from single food sources, positioning kimchi as a valuable dietary option for acquiring these essential components. In this review, the health functionalities of kimchi ingredients, lactic acid bacteria strains, and health-promoting metabolites from kimchi are discussed for their properties and roles in kimchi fermentation. In conclusion, consuming kimchi can be beneficial for health. We highlight the benefits of kimchi consumption and establish a rationale for including kimchi in a balanced, healthy diet.

• Journal of the Korean Society of Safety
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• v.32 no.4
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• pp.89-99
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• 2017

The purpose of this study is to analyze safety and health managers' perceptual maps on the effective educational contents and its methods of workplace safety and health education. Self-administered survey was successfully conducted to 582 workers who were 339 in manufacturing, 68 in construction, and 175 in service & others by industry classification. Survey sites were recruited based on business size, incidence of occupational accident, and compliance of workplace safety and health education regulation. Questionnaire included personal factors, workplace factors, and needs of safety and health education at work. Male workers were 85.3% and more than 50% were in their 30s and had university education. Overall needs of educational contents and its methods were greater in manufacturing and services than construction. Two dimensional properties of effective educational contents perceived were 'knowledge structure' which divided to safety and health, and 'behavior outcomes' which divided to indirect and direct. Two dimensional properties of educational methods were 'class activity' which divided to experience-based and verbal-based and 'class participation' which divided to passive and active. Effective educational contents and its methods perceived by safety and health managers commonly included the characteristics of direct, case-based, and participation.

• Journal of Korean Academy of Nursing
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• v.27 no.4
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• pp.933-942
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• 1997

There has recently been an increased interest in women's health from, various disciplines, with different perspectives presented according to each profession's academic background. This has led to many instances of incorrectly defining, or misinterpretation, of the issues even among professionals. Nurse scholars as well as practitioners who work in women's health care need to have a clear conceptual understanding of women's health in order to build a body of knowledge, delineate curricular activities, and set directions for professional nursing interventions. In addition, a conceptual model that may be directly utilized in practice is needed to maintain and promote women's health issues. The purpose of this study was to apply a Hybrid model, analyzing conceptual definitions and discussions related to women's health gathered from review of the literature. Further to compare analyticals the concepts and properties observed from field work, so as to present a final definition of women's health and, build a conceptual framework for a united comprehensive perspective on the concept as well as on nursing practice. Data collection and analysis consisted of a theoretical stage, field work stage, and final analysis. A heterogeneous group of professionals and lay persons, 39 in all, participated in the field work. Study findings Include several subconcepts under the concept of women's health : a woman's whole life, holistic health, quality of life, awareness of being a woman, individual nursing, self care ability, reproductive health, and family health. Thus, a comprehensive definition was built, 1. e., "Women's health care be defined as improvement in the quality of life of women through attainment of holistic health throughout the life span. With reproductive health at the core, the concept is directly related to family and national health, and includes taking care of one's own health based on awareness of being a woman and utilizing self care activities. Women's health care issues are unique and allow various responses, therefore women's health professionals need to apply individual approaches to reach solutions in attaining holistic health and improving quality of life." The constructual factors of women's health were found to be reproductive functions, diseases more common in woman, self actualization, mental health, women's health policies, sexuality, midlife changes, and marital relations, with each factor having more than three properties. Positive factors affecting women's health were found to be a normal childbearing process, a healthy lifestyle, active health management, health information, support, and resources, and interpersonal relationships. Negative factors were found to be overwhelming role stress, cultural oppression, gender inequality, distorted sexual identity, economic difficulties, misuse and/or abuse of substances, and stress. The model of women's health may be visualized as a balance scale set upon a woman's life, supporting 4 concentric circles. The innermost circle and second circle incorporate conceptual definitions of women's health, and the outer two circles represent the constructional factors and properties of women's health. Each circle has its own color that symbolizes the conceptual meaning. Positive and negative factors are represented as weights at either end of the scale, and are affected by nursing intervention, i. e., health and wellness increase when positive factors are stronger, whereas disease and illness increase when negative factors are stronger. This model is only a preliminary effort and requires much discussion and testing to be further developed. Continuous research is also required.

• Korean Journal of Veterinary Service
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• v.27 no.3
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• pp.257-263
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• 2004

This study were carried out to investigate isolation of Pasteurella multocida from respiratory disorder piglets, to examine the biochemical properties and antimicrobial susceptibility. The results were summarized as follows; P multocida was isolated from 31($10.3\%$) of the 302 respiratory disorder or growing piglets of $4{\sim}10$ week olds. The majority of biochemical and cultural properties of the P multocida isolates were identical to those of the standard strains. The isolates were highly susceptible to norfloxacin($100.0\%$), enrofloxacin($96.8\%$) and ampicillin($87.1\%$), but resistant to streptomycin ($77.4\%$), penicillin($61.2\%$) and neomycin($54.8\%$).

• Journal of Dairy Science and Biotechnology
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• v.38 no.2
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• pp.59-69
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• 2020

This study was conducted to evaluate the chemical and organoleptic properties of some dairy products supplemented with different concentrations of propolis (0%, 0.5%, 1.0%, 1.5%, and 2.0%). There was no significant difference between pH values of the treated and control groups. All samples were tested using 20 evaluators divided in five categories. Compared to the control, the best organoleptic test results were obtained for market milk, yoghurt, and Kefir supplemented with 0.5% propolis. Statistical difference was observed in the taste, flavor, color, texture, and overall acceptability of market milk, yoghurt, and Kefir between the treated and control groups (p<0.05). However, as propolis has a strong aromatic flavor, it should be supplemented in small amounts, so as not to affect the organoleptic properties of the product. In conclusion, this study provides useful information for the development of functional dairy products using propolis.

• Safety and Health at Work
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• v.6 no.4
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• pp.338-344
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• 2015

Background: The present study aims to investigate job stressors and stress relievers for Korean emotional laborers, specifically focusing on the effects of work conditions and emotional labor properties. Emotional laborers are asked to hide or distort their real emotions in their interaction with clients. They are exposed to high levels of stress in the emotional labor process, which leads to serious mental health risks including burnout, depression, and even suicide impulse. Exploring job stressors and relieving factors would be the first step in seeking alternatives to protect emotional laborers from those mental health risks. Methods: Using the third wave data of Korean Working Conditions Survey, logistic regression analysis was conducted for two purposes: to examine the relations of emotional labor and stress, and to find out job stressors and relievers for emotional laborers. Results: The chances of stress arousal are 3.5 times higher for emotional laborers; emotional laborers experience double risk-burden for stress arousal. In addition to general job stressors, emotional laborers need to bear burdens related to emotional labor properties. The effect of social support at the workplace is not significant for stress relief, unlike common assumptions, whereas subjective satisfaction (wage satisfaction and work-life balance) is proven to have relieving effects on emotional laborers' job stress. Conclusion: From the results, the importance of a balanced understanding of emotional labor for establishing effective policies for emotional laborer protection is stressed.

• Safety and Health at Work
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• v.9 no.3
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• pp.334-338
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• 2018

Background: With global changes in the current state of work and employment, the role of health-adverse psychosocial work environments has received increasing attention in developed as well as in rapidly developing countries. Thus, there is a need to apply valid measurement tools for monitoring and preventive purposes. This study aims to examine the factorial structure and psychometric properties of the Persian version of the effort-reward imbalance (ERI) questionnaire, assessing one of the internationally leading concepts of stressful work. Methods: This descriptive cross-sectional study of a random sample of 202 white collar employees in an industrial company in Iran analyzes the ERI scales by exploratory and confirmatory factor analysis. Moreover, aspects of construct and criterion validity are tested. To this end, correlations of ERI scales with subscales of organizational injustice, a complementary work stress model, and also the correlations of ERI scales with a questionnaire assessing psychosomatic symptoms are performed. Results: Internal consistency of the three ERI scales was satisfactoryy (Cronbach ${\alpha}$ effort: 0.76, reward: 0.79, overcommitment: 0.75). Fit indices of confirmatory factor analsis pointed to an adequate representation of the theoretical construct (e.g., adjusted goodness of fit index (AGFI): 0.73, goodness of fit index (GFI): 0.78). Negative correlations with subscales of organizational injustice supported the notion of construct validity of the ERI scales, and positive correlations of ERI scales with psychosomatic symptoms indicated preliminary criterion validity. Conclusion: The Persian version of the ERI questionnaire has acceptable psychometric properties and can be used as a valid instrument in research on this topic.