• 생물정신의학
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• 제29권2호
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• pp.46-55
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• 2022

Objectives Many studies have reported noticeable increases in the proportion of employees working either relatively short or relatively long hours. Such trends have been accompanied by an increasing concern that how much subjective mental well-being of employees would be influenced by their hours of work. The aim of this study was to investigate the association between work hours and clinically relevant depressive symptoms with demographic variables adjusted. Methods Participants were employees of a total of 56 private companies and local government organizations in Korea, aged 19 to 65 years. A self-report questionnaire that included items on working hour, job stress, levels of depression, and socio-demographic factors was administered to 15360 Korean employees, with 14477 valid responses. Hierarchical linear regression analyses, adjusted for sociodemographic factors, job related demographic factors, job stress, were used additionally to estimate the association between working hours and depressive scores. Results We found that working more than 40 hours per week correlated positively with the level of depressive symptoms after adjusting for demographic variables and the level of job stress. Furthermore, working 40 or fewer hours per week correlated negatively with the level of depressive symptoms. Being younger (β = -0.078, β = -0.099), being a female (β = 2.770, β = 1.268), and possessing a lower level of education (β = -0.315, β = -1.125) were significantly associated with higher level of depressive symptoms in all respondents. Conclusions Both of working excessively long or short hours is significantly associated with the prevalence of depressive symptoms. Establishing proper office hours for employees is critical to improving the quality of working conditions and maintaining good mental health in the workplace.

• Animal Bioscience
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• 제37권4호
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• pp.591-599
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• 2024

Objective: Sumba Ongole (SO) cattle are valuable breed due to their important role in the development of Indonesian cattle. Despite rapid advances in molecular technology, no genomic studies on SO cattle have been conducted to date. The aim of this study is to provide genomic profile related to the population diversity, admixture, and demographic trends of SO cattle. Methods: Genomic information was gathered from 79 SO cattle using the Illumina Bovine SNP50 v3 Beadchip, and for comparative purposes, additional genotypes from 209 cattle populations worldwide were included. The expected and observed heterozygosity, inbreeding coefficient, pairwise fixation indices between-population, and Nei's genetic distance were examined. Multidimensional scaling, admixture, and treemix analyses were used to investigate the population structure. Based on linkage disequilibrium and effective population size calculations, the demographic trend was observed. Results: The findings indicated that the genetic diversity of SO cattle was similar to that of other indicine breeds. SO cattle were genetically related to indicines but not to taurines or Bali cattle. The study further confirmed the close relationship between SO, Ongole, and Nellore cattle. Additionally, a small portion of the Ongole mixture were identified dominant in the SO population at the moment. The study also discovered that SO and Bali cattle (Bos javanicus) could have been ancestors in the development of Ongole Grade cattle, which corresponds to the documented history of Ongolization. Our finding indicate that SO cattle have maintained stability and possess unique traits separate from their ancestors. Conclusion: In conclusion, the genetic diversity of the SO cattle has been conserved as a result of the growing significance of the present demographic trend. Consistent endeavors are necessary to uphold the fitness of the breed.

• 가정과삶의질연구
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• 제25권2호
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• pp.123-135
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• 2007

This study investigated the influence of values associated with internet auctions and risks associated with participating in internet auctions. The results of this study were as follows: First, the values associated with internet auctions consisted of hedonic value, information value, and practical value. Among these values, hedonic value was the highest, and information value was the lowest. Second, He risks consisted of functional risk, privacy risk, socio-psychological risk, md financial risk. Among these risks, functional risk was the highest, and socio-psychological risk was the lowest. Results of regression analysis using demographic elements to inspect risk factors revealed sex, age, and income were statistically significant finally, with respect to demographic characteristics and influences of the aforementioned values and risks, the factors influencing participation in internet auctions were sex, age, hedonic value, functional risk and financial risk.

• 대한가정학회지
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• 제44권11호
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• pp.107-116
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• 2006

This study aimed to identify parents' experiences of child-rearing on Saturday with no class as well as their perceptions and demands on the Five-day School Week system. The study participants were 640 parents with first to second grade children. The major results were as follows: First, parents were generally satisfied with the Five-day School Week System. Second, the Five-day School Week System increased fathers' role-sharing on the Saturday with no class. It was also related with some of the demographic variables and the Five-Week Workweek System of the father and the mother. Third, both the fathers and mothers had more parenting stress on Saturdays with no class than on Saturdays with classes. Their parenting stress on Saturdays with no class was related with some demographic variables and work flexibility.

• East Asian Economic Review
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• 제21권3호
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• pp.201-230
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• 2017

This paper studies the long-run behavior of relative price dispersion among cities in Korea with a special emphasis on heterogeneous transitional patterns of price level dynamics. Formal statistical tests indicate considerable evidence for rejecting the null of relative price level convergence among the majority of cities over the sample period of 1985-2015. The analysis of gravity model suggests that the effect of transportation costs on intercity price level differentials is limited, while other socioeconomic factors, such as income, input factor prices, demographic structure, and housing price growth, play key roles in accounting for persistent regional price level disparities. Individual price levels are found to be better explained by a multiple-component model, and the deviations from PPP may be attributed to distinct stochastic common trends that are characterized by income and demographic structure.

• 가정과삶의질연구
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• 제23권5호
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• pp.93-102
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• 2005

The present study examined how demographic, paternal, and children's variables were associated with role satisfaction of Korean fathers with young children. Subjects were 236 fathers of 3-5 year old children living in Jeju island in Korea. Data were collected using questionnaires. Among demographic variables, father's income is an only variable that effects on role satisfaction. Role satisfaction is positively associated with child care, marital, job satisfaction, and child-rearing participation in terms of psychological variables. According to multiple regression, role satisfaction was positively predicted by income, gender, and adaptability of children. Moreover, day care, marital, job satisfaction and child-rearing participation were significant predictors of role satisfaction.

• 한국생활과학회지
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• 제14권1호
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• pp.69-79
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• 2005

The purpose of this study is to investigate child rare teachers' job satisfaction in relation to their burnout and differences in their job satisfaction by demographic variables. Subjects of this study were 285 child care teachers in Chungnam province. They responded to 'Teachers' Work Satisfaction Scale' and 'Teachers' Burnout Scale.' The collected data were analyzed by one-way ANOVA, Pearson's partial correlation, stepwise multiple regression, $Scheff{\acute{e}}$ test for post hoc test, and Cronbach's a for reliability with SPSS PC program(10.0 version). The results are as follows: First, total job satisfaction was high in teachers with high school diploma and those married. Also, burnout level was high in teachers with high school diploma, those with more than 5 year, those married, and those over 40 years old. Second, the partial correlation coefficient of teachers' job satisfaction in relation to their burnout was -.52. Finally, teachers' burnout and demographic variables explained approximately 31% for total score of job satisfaction and $13{\sim}33%$ for subscales of it.

• 한국인구학
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• 제18권2호
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• pp.23-50
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• 1995

이 글은 한국의 인구변천이 환경변화에 어떻게 영향을 미치고 있는가를 규명하고 있다. 이 관계는 기본적으로 경로모형(path model)의 틀로서 설명되고 있다. 인구증가는 그 자체만으로도 직접적으로 환경을 오염시키는 원인이 되고 있다. 인구증가는 또한 각각 도시화 및 산업화를 유발시킴으로서 환경오염의 간접적인 원인이 되고 있다. 한편, 도시화와 산업화는 서로 상승작용을 통해서 환경오염에 영향을 미치고 있다. 이 글에서는 이와 같은 이론적 틀에 입각하여 한국의 인구성장, 도시화 및 공업화의 추세를 살펴보고 이들 요인들이 환경변화에 어떻게 영향을 미치고 있는가를 분석하고 있다. 또한 환경오염의 변화양태를 대기오염과 수질오염 그리고 폐기물의 변화추세로써 살펴보고 있다. 마지막으로 환경변화의 결과가 한국적인 상황에서 어떻게 나타나고 있는가가 논의되고 있다.

• 한국생활과학회지
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• 제15권2호
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• pp.261-274
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• 2006

The purpose of this study was to explore the well-being behaviors and the consciousness toward well-being trend. The well-being behaviors were composed of 4 dimensions such as regular exercise, purchase the organic agricultural products, use of the air cleaner, and diet for health. The consumer consciousness toward well-being trend was composed of 3 factors such as the marketing criticism, the pursuit of mental richness and orientation for rural life. Especially, the differences of well-being behavior and consumer consciousness toward well-being trend according to socio-demographic variables. The main results were as follows: 1. The well-being trend was extended every consumer, but consumers were not after well-being trends or goods. In addition to consumers thought that well-being trend was stoked by marketers. 2. The well-being behaviors and consumer consciousness were statistically different among groups by the socio-demographic variables.

• 한국인구학
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• 제21권2호
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• pp.5-36
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• 1998

본 논문은 지난 30여년간 여성노동시장의 변화의 추이를 출산력 감소 등 인구학적 요인의 변화의 영향을 중심으로 살펴 보았다. 여성의 경제활동 참가율에 영향을 미칠 것으로 여겨지는 인구학적 요인들로는 교육, 혼인상태, 출산 등이 중요하다. 여성의 학력 수준이 평균적으로 높아지고, 결혼을 늦게 하는 추세이며, 자녀 수는 줄어드는 추세이다. 이러한 경향이 인구의 구성에 미치는 영향은 경제활동가능인구 중 고학력 여성의 비율이 증가하고 어린 자녀를 둔 여성의 비율은 줄었으며, 기혼 여성의 비율은 큰 변화가 없는 상황이다. 이러한 인구 구성의 변화가 여성의 경제활동참가율을 증가 시킨 것은 사실이다. 이에 더하여, 같은 인구학적 특성을 갖는 여성 집단의 노동력공급행태도 변화하였다. 고학력으로 분류할 수 있는 고졸, 대졸 여성의 경제활동참여율이 초졸, 중졸 여성의 참여율보다 빠르게 증가하였고, 혼인하여 배우자가 있는 여성의 경제활동참가율이 미혼여성의 그것보다 빨랐다. 출산이 경제활동참여를 억제하는 정도도 줄어든 것 같다. 즉, 지난 30년간 여성인구구성의 변화나 행위양식의 변화는 여성의 경제활동의 증가를 지원하는 방향으로 변하였다. 그러나 경기가 하강국면에 접어들 때, 여성은 더 먼저 노동시장 밖으로 밀려나는 경향이 있으며, 이 때 저연령, 저학력 등 인적자본이 열세인 여성, 그리고 여성노동자의 비율이 높은 산업, 직업에 속해 있는 여성이 더욱 취약한 것으로 보인다.