• Journal of Family Resource Management and Policy Review
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• v.19 no.3
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• pp.121-142
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• 2015

The purpose of this study is to resolve the factors that affect happiness levels and leisure life satisfaction of middle-class and to find way to incorporate them into policy. In this study, a status analysis on leisure life and One-Way ANOVA conduct a study on leisure resource and income levels that affect the happiness level and leisure life satisfaction. To recap briefly, to reduce the social and cultural polarization caused by economic disparity and to promote leisure life satisfaction and happiness level is possible quantitative-qualitative growth and maturation of middle class. The most important thing here is increasing in leisure time and leisure costs that consumed in real leisure life. In other words, leisure life satisfaction and happiness levels in the middle class has seen a significant difference in depending on whether and how much to spend on leisure time and cost, rather than differences of the monthly average household income. More particularly, analysis results seem to hoping of the extra leisure costs about 50,000 won per person and increasing the leisure time on weekdays and long weekend holiday. Above all, It is important to redefine the middle class that meets the recognition of the people and it should reflect government policy. Ultimately, The state of the socio-economic-welfare policies will be further expanded in the direction for the middle class, thinking of themselves as middle class and leading national consciousness.

• Journal of Korean Public Health Nursing
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• v.13 no.1
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• pp.1-11
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• 1999

This study was performed to estimate stressful life events, self-esteem and perceived health status in the elderly persons and to compare degree of self-esteem and perceived health status according to experience of stressful life events and general characteristics. The data was collected from 179 elders in a rural community. Data collection was done from October 20 to December 6, 1997. A comparison of self-esteem and perceived health status by experience of stressful life events and general characteristics was summarized as follows : 1) Eighty three persons, $46.4\%$ of the surveyed, have experienced stressful life events, including disease(54 persons) and death of family member(l2 persons). 2) Thirty eight percents of the surveyed persons evaluated they are not healthy. The average score of perceived health status of the elderly was 2.88± .92 for the scale of 5, which represents the healthiest status. 3) There were significant differences on the self-esteem score in the elderly according to having a spouse or not(t=3.51. p=.00l), having family members living together or not(t=2.98. p=.003) and socioeconomic status(F=7.08. p=.00l). 4) There were significant differences on the perceived health status in the elderly according to experience of stressful life events(t=3.51. p=.00l), having family members living together or not(t=2.09, p= .038) and socioeconomic status(F=6.56, p=.002). 5) Positive correlation was observed between self-esteem and perceived health(r= .5037, p=.000). The above results imply that support of family and society should be reinforced to improve self-respect and health of aged persons, and that it is desirable to build up social and economic environment promoting health status through daily life.

• Journal of Fisheries and Marine Sciences Education
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• v.22 no.1
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• pp.123-140
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• 2010

The Purpose of this study was to examine the effects of self-growth group counseling on self-esteem and life satisfaction of university students. For this study the following hypotheses were established. First, does the self-growth group counseling enhance significantly the participants' self-esteem? Second, does the self-growth group counseling enhance significantly the participants's life satisfaction? Those who participated in this study were 22 University students which are in D University in Busan. Ten participants were assigned in the experimental group and twelve in the control group. The experimental group participated in the self-growth group counseling one session a week for 12 consecutive weeks held by counseling center for D University students. The instruments used in this study were Self-Esteem Scale and life satisfaction Scale. The data was analysed by ANCOVA. The average, standard deviation, and estimated marginal means were calculated and the differences between the pre and post-tests calculated, processed by SPSS 12.0. The major findings of this study can be summarized as follows: First, the self-growth group counseling is effective to enhance significantly the level of self-esteem of University students. Second, the self-growth group counseling is also effective to enhance the level of life satisfaction of University students. Based on the results, the self-growth group counseling was suggested as a means to help University students enhance their self-esteem and life satisfaction.

• Journal of Fisheries and Marine Sciences Education
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• v.28 no.2
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• pp.525-538
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• 2016

This study is to investigate the effect of the amusement factor and the motive of participation in skin-scuba class on the satisfaction with university life with the university students participating in the skin-scuba class and to provide the practical research data for the development of the marine sports, for the proper operation of skin-scuba class, and for the leisure life which the university students may lack. For these purposes, technical statistics between questions were disposed in order to grasp the average and standard deviation on each variables, exploratory factor analysis and reliability analysis were conducted for the reliability and validity of the scale, and correlation analysis and multiple regression analysis were conducted to test the casuality of amusement factor, the motive of participation in skin-scuba class and the satisfaction with university life as the research methods. Research results showed that it was confirmed that the amusement factor and the motive of participation in skin-scuba class act as the important variables in the satisfaction with university life and it was predicted that the motive of participation in skin-scuba class and the amusement factor had interrelation with parameter. Therefore, a variety of programs reflecting the amusement factors should motivate the university students to particiapte in the skin-scuba class to increase the satisfaction with university life and to encourage the re-participation of students.

• Safety and Health at Work
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• v.7 no.1
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• pp.78-82
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• 2016

Background: Little is known about the effects of premenstrual syndrome (PMS) on work-related quality of life in nurses. We aimed to investigate the effect of PMS on work-related quality of life in Turkish nurses. Methods: A total of 134 volunteer nurses were included in this cross-sectional study between January 2015 and March 2015. One hundred and thirty-four nurses completed a questionnaire regarding demographic data, the Premenstrual Syndrome Scale (PMSS), and the Work-Related Quality of Life Scale (WRQoL). The nurses were classified as having or not having premenstrual syndrome according to the PMSS. Results: The average age was $29.5{\pm}7.1years$ and the prevalence of PMS was 38.1%. The total score of PMSS was significantly negatively correlated with the overall score (r = -0.341; p < 0.001) and all subscale scores of the WRQoL and ranged from -0.207 to -0.402 (p < 0.05 for all). All of the WRQoL subscale scores except stress at work (p = 0.179) in nurses with PMS were significantly lower than those of nurses without PMS (p < 0.05). The age (${\beta}=-0.258$; p = 0.021) and PMSS total score (${\beta}=-0.314$; p < 0.001) increment negatively; however, optimistic thinking (${\beta}=0.228$; p = 0.008) positively affected overall WRQoL score. Conclusion: Nurses with PMS have decreased levels of work-related quality of life in their professional lives. Methods to help cope with cyclic premenstrual symptoms may be used, and as a result, productivity and work-related quality of life may increase.

• Korean Journal of Medicinal Crop Science
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• v.20 no.6
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• pp.447-453
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• 2012

This study was conducted to determine the contents of phenolic compounds and astragalosides in Astragalus membranaceus. Between the phenolic compound groups, flavonoids compounds (51.13%) had higher average concentrations than the phenolic acids groups. Among the 30 phenolic compounds, quercetin ($353.11{\mu}g\;g^{-1}$) provided the highest concentrations. According to different cultivation year, 3-year-cultivated Astragalus ($2612.57{\mu}g\;g^{-1}$) showed the highest concentrations of phenolic compounds. According to different harvest days, 6/5 harvesting Astragalus ($2615.80{\mu}g\;g^{-1}$) showed the highest concentrations of phenolic acids. Comparison between the top and subterranean parts of harvested Astragalus plants cultivated for 2 years, 3 years, and 5 years showed big difference of total phenolic compounds in concentrations. Further, the top part had higher amounts of the total phenolic compounds than the subterranean part among all Astragalus. This tendency was similar to those of the top root and lateral root. The concentration of the phenolic compounds in the top root was higher than that of the lateral root.

• Food Science of Animal Resources
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• v.28 no.4
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• pp.431-436
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• 2008

The impact of storage on the neuroprotective effects against $A\beta$-induced cell death and physicochemical characteristics of milk fortified with BF-7 were investigated. The BF-7 milk exerted protection of neuronal cells SK-N-SH from amyloid beta ($A\beta$)-induced neuronal stress. Our results showed that incubation of the cell with pretreated BF-7 milk, significantly attenuated apoptotic stress by $A\beta$, considered in cell morphology and nucleus shape. The general compositions were maintained consistently in BF-7 fortified milk (BF-7 milk). The BF-7 did not make any disturbance on pH and titratable acidity. The color change was not detected, either. Also, any microorganism had not been detected with more than 7 days storage at $4^{\circ}C$. In sensory evaluation study. the average scores of each sensory attribute were quite similar with plain milk. In conclusion, our results strongly indicate that BF-7 characteristics are quite adequate to be included in milk and BF-7 milk is still working well on neuro-protection, result in enforcing our brain and delaying neurodegeneration.

• Journal of the Korean Society of Propulsion Engineers
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• v.16 no.4
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• pp.33-41
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• 2012

The aim of the study is to investigate the method to estimate a shelf life of KM6 single base propellant by stochastic gamma process model. The state failure level is assumed that the degradation content of stabilizer is below 0.8%. The constant of time dependent shape function and the scale parameter of stationary gamma process are estimated by moment method. The state distribution at each storage time can be shown from probability density function of deterioration. It is estimated that the $B_{10}$ life, a time at which the cumulative failure probability is 10%, is 25 years and the $B_{50}$ life is 36 years from cumulative failure distribution function curve. The $B_{50}$ life can be treated as the average shelf life from the practical viewpoint and the lifetime can be expressed as distribution curve by using stochastic process theory.

• Journal of the Korean Society of Industry Convergence
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• v.24 no.6_2
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• pp.809-818
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• 2021

The purpose of this study was to identify the influence of oral health knowledge and awareness of caregivers in charge on the oral health-related quality of life of the elderly in nursing homes. Data were collected from 115 elderly without dementia and their 115 caregivers in nursing facilities in S and C cities. The data were analyzed using SPSS/WIN 22.0 program. The average score for oral health knowledge and awareness of the caregivers were 11.62, 39.22 points each and the oral health-related quality of life of the elderly was 40.62 points. Oral health knowledge, awareness of caregivers and oral health-related quality of life of the elderly showed a difference according to oral health education experience of the caregivers (𝜌<.001), the nursing facility evaluation grade (𝜌=.016), and the oral health education experience (𝜌=.008), working hours of 40 hours or less per week of caregivers (𝜌=.008) each in order. The influencing factors on the oral health-related quality of life of the elderly were the oral health education experience, the working hours per week of the caregivers and the facility evaluation grade. This findings imply that developing customized program and the work environment improvement for caregivers should be considered to improve the oral health-related quality of life of the elderly in nursing homes.

• Journal of Embryo Transfer
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• v.33 no.4
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• pp.265-270
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• 2018

Up-to-date artificial insemination (AI) using frozen sperm consider as the most widely using technology for improvement of Korean Native Cow (Hanwoo) embryo production. However, it is time consuming, required at least 15~20 years to make more than 6 generations, and their offspring number is limited. To overcome such limitations, superovulation and in vitro fertilization have been developed. For superovulation, the number of produced embryos are not enough for commercialization and donor cows need rest period. This led to use of slaughterhouse ovary for in vitro fertilization, but it is impossible to repeat the collection from the same individual and it only can improve the genetic merits of offspring for one generation. Production of embryos using Ovum Pick-Up (OPU) technique, where oocytes can be repeatedly collected from living elite donor, might overcome these limitations. In this study, we investigated the possibility of using OPU technique from donors at different age and different session periods for mass-embryo-production. Oocytes were collected from 26 donor cows twice per week, 3 - 4 months per year, between 2013 and 2016. Results showed that, the average number of embryo produced in first year used donor was significantly higher than that in second year used donor ($3.89{\pm}2.85$ vs $3.29{\pm}2.70$), however, there was no significant difference between third year used donor ($3.51{\pm}3.32$) and other groups. Taken together, our data showed that repeated using of donor up to three years is possible for in vitro embryo mass-production. Moreover, OPU can be used as suitable embryo producing technique for livestock breed improvement.