• Korean Journal of Social Welfare
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• v.67 no.3
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• pp.281-303
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• 2015

This study examined the interdependent retirement decision between husbands and wives. Since most of retirees in Korea retired by involuntary reasons such as health problems, it purposes to test whether the involuntary retirement of husbands(wives) influences the retirement decision of wives(husbands). Using data from 4th Korean Longitudinal Study of Ageing Panel, it conducted probit and multivariate probit analysis on 1,038 dual-earner couples aged 51~76 to test interdependence of couples' retirement. The results showed that husbands who have retired wife were more likely to retire. It also proved that involuntary retirement of spouse is a significant predictor of early retirement decision, though the direction of the effect is reversed by gender. Wives were more likely to retire when husband were retired involuntarily, while husbands were more likely to stay in labor market. These findings helped to understand the retirement decision of aged couples in Korea and brought suggestion on labor market and care policies for aged couples.

• Korean Journal of Childcare and Education
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• v.10 no.4
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• pp.159-176
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• 2014

This study aims to examine the suggestions by studies that family predictors are related to developmental outcomes more strongly for children reared principally by their parents compared to those with extensive child care experience. Zero-order correlations between family predictors and developmental outcomes were conducted and the significance of differences in correlation coefficients between the two child care groups were examined. There was no evidence that there exist systematic differences between the two groups in predictive power of family factors except a few exceptions. At 2 years, social parenting style was more strongly associated with communication ability in the extensive child care group. At 3 years, some HOME subscales were related to a child's expressive and receptive vocabulary skills in significantly greater magnitudes in the mother care group. The findings also implied the potential contribution of child care environment on developmental outcomes for those who spend extensive hours in nonmaternal care.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.7
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• pp.3057-3064
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• 2012

In this study, we have tried to identify the relationship between the patient's health belief and the implementation of functional movement rehabilitation and ability to perform ADL in stroke patient, and have done this study to use this as evidence in treating stroke patients in clinical trials by providing a basis data of stroke patients' successful rehabilitation program. We targeted stroke patients who were diagnosed with stroke and are hospitalized in D hospital in J City, Jeollabuk-do, South Korea. More over, we distributed a total of 150 questionnaires to patients who understand the purpose of the research and agreed to participate. We were able to collect 132questionnaires at the end. However, 11 had insufficient data so we only analyzed and evaluated 121 of the said questionnaires. We did frequency analysis to understand the general characteristics by using SPSS for Windows(ver.12.0) program and we used Pearson's Correlation Coefficient and regression analysis to know the relationship between the patient's health beliefs and the implementation of rehabilitation and ability to perform ADL in stroke patients. The results of this study shows that patients with higher perceived sensitivity, perceived benefit and perceived severity equates to an implementation of the rehabilitation better, however patients with a lower perceived disability equates an implementation of functional movement rehabilitation better than those with a higher perceived disability.

• Korea Trade Review
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• v.48 no.4
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• pp.189-208
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• 2023

This paper analyzed the dynamic conditional correlation between the Korean ETS market, energy market and stock market. This paper conducted an empirical analysis using daily data of Korea's carbon credit trading price, WTI crude oil futures price, and KOSPI index from February 2, 2015 to December 30, 2021. First, the volatility of the three markets was analyzed using the GARCH model, and then the dynamic conditional correlations between the three markets were studied using the bivariate DCC-GARCH model. The research results are as follows. First, it was found that the Korean ETS market has a higher rate of return and higher investment risk than the stock market. Second, the yield volatility of the Korean ETS market was found to be most affected by external shocks and least affected by the volatility information of the market itself. Third, the correlation between the Korean ETS market and the stock market was stronger than that of the WTI crude oil futures market. This paper analyzed the correlation between the Korean ETS market, energy market, and stock market and confirmed that the level of financialization in the Korean ETS market is quite low.

• Korean Journal of Social Welfare
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• v.67 no.1
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• pp.143-163
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• 2015

Although self-sufficiency program participants' alcohol problem is widely recognized among social workers in the field, it has not been received much attention. The purpose of this study is to explore the relationship between alcohol problem and self sufficiency among the participants. A total of 281 participants were participated in this study. Significant relationships between alcohol problem and self sufficiency were not found in bivariate analysis. However, the moderating effect of alcohol problem on the relationship between the length of participation and willingness for self sufficiency was statistically significant. Among the participants with alcohol problem, the length of participation was positively related to willingness for self sufficiency. The result on the moderating effect of alcohol problem on the relationship between the length of participation and willingness for self sufficiency has been never mentioned in previous studies.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.8
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• pp.610-617
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• 2019

The urban-rural complex area in Korea has a distinctive spatial structure where the urban area and rural area coexist. Therefore, in order to cope with the over-depopulation in the rural region of the urban-rural complex area, it is necessary to explore various policies that can prevent the existing residents from leaving, and in fact support them to remain where they currently reside. In this context, this current study analyzed the factors affecting the existing residents' continuous intention to remain by employing the '2017 Chuncheon City Social Survey' as a countermeasure for the over-depopulation of the rural region in the urban-rural complex area. Especially, since a regional identity is determined endogenously, this study used a simultaneous bivariate ordered probit model with giving consideration to the endogenous relationship between a regional identity and a regional residents' intentions. As a result, it was found on analysis that the regional residential intention was higher as the regional identity was stronger. Furthermore, the regional identity was stronger as a householders' age and residence period were longer, and also as the residents were satisfied with their work leisure and life residence balance. It was also found that the residents' intention was higher as the residents' satisfaction with the local medical service and their work was increased. Thus, supporting policy is needed that can provide appropriate quality-of-life services in a timely manner, but only after identifying the demand for these services by the rural residents in the urban-rural complex area.

• Journal of Korean Society of Forest Science
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• v.106 no.2
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• pp.240-248
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• 2017

The purposes of this study is to analyze the effects of repeated mountain trekking experience in adolescent sociality. Fifty-eight adolescents who took part in Baekdu-daegan trekking program were analyzed as research subjects. The subjects were divided for comparative analysis. Those who participated 40 times or more from 2014 to 2015 were designated as repetitive participants, and those who participated 5 times or fewer from March 2016 to April 2016 were designated as temporary participants. The general attributes of the subjects were examined by using descriptive analysis. A correlation analysis was carried out to compute the correlation coefficients between the five sub-components of sociality, and an independent sample t-test was executed for comparative analysis of sociality. The results of the analysis showed that sociality was higher in adolescents who repeatedly participated in trekking. Repetitive participants scored higher than temporary participants in all measures of the sub-components of sociality: autonomy, lawfulness, diligence, cooperativeness, and interpersonal relationships. We have verified positive influence of repetitive trekking experiences based on the research results thus far. Therefore, it supports the need of forest education as a fundamental approach to solving adolescent problems.

• Korean Journal of Construction Engineering and Management
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• v.15 no.6
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• pp.83-91
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• 2014

The global community demands the reduction of environmental pollution such as greenhouse gas and carbon dioxide emissions. According to these requirements, the road construction project in the highest energy consuming industry is required the efficient way of reducing environmental pollution emissions. In this study, during the whole life cycle process, an environment impact assessment was performed for the several road construction projects in order to evaluate environmental stress through the road construction process. This study provides a proper process of environment impact assessment for life cycle assessment (LCA) analysis of road construction project, and figures the environmental stress regarding to the major construction materials for the case projects. In addition, this study conducted a sensitivity analysis for the key materials of environmental stress through the quantity analysis of major materials for the 1km section of a road construction. By this sensitivity analysis of total environmental stress change from the different volumes of constructing materials, it would be useful information for the environment impact assessment for the future road construction project.

• Journal of Korea Water Resources Association
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• v.47 no.9
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• pp.767-776
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• 2014

Changes in climate have largely increased concentrated heavy rainfall, which in turn is causing enormous damages to humans and properties. Floods are one of the most deadly and damaging natural disasters known to mankind. The flood forecasting and warning system concentrates on reducing injuries, deaths, and property damage caused by floods. Therefore, the exact relationship and the spatial variability analysis of hydrometeorological elements and characteristic factors is critical elements to reduce the uncertainty in rainfall-runoff model. In this study, grid resolution depending on the topographic factor in rainfall-runoff models presents how to respond. semi-distribution of rainfall-runoff model using the model GRM simulated and calibrated rainfall-runoff in the Gamcheon and Naeseongcheon watershed. To run the GRM model, input grid data used rainfall (two event), DEM, landuse and soil. This study selected cell size of 500 m(basic), 1 km, 2 km, 5 km, 10 km and 12 km. According to the resolution of each grid, in order to compare simulation results, the runoff hydrograph has been made and the runoff has also been simulated. As a result, runoff volume and peak discharge which simulated cell size of DEM 500 m~12 km were continuously reduced. that results showed decrease tendency. However, input grid data except for DEM have not contributed increase or decrease runoff tendency. These results showed that the more increased cell size of DEM make the more decreased slope value because of the increased horizontal distance.

• Proceedings of the Korea Water Resources Association Conference
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• 2019.05a
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• pp.53-53
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• 2019

최근 지구온난화로 인한 기상 이변의 이유로 우리나라뿐만 아니라 세계 여러 국가에서 홍수 및 가뭄이 빈번하게 발생하고 있다. 특히 우리나라에서는 게릴라성 호우가 빈번히 발생하여 저지대 및 많은 지역에서 홍수가 발생하고 있으며, 연평균 총 강우량은 매년 비슷하나 게릴라성 호우와 같은 폭우의 빈도가 증가되고 있어 상대적으로 과거에 비해 가뭄의 발생기간도 길어지는 실정이다. 다시 말하면 게릴라성 호우와 같은 폭우는 잦아졌지만 강수량 자체는 감소하는 추세이다. 이는 홍수와 가뭄의 위험이 더 커졌다는 것을 의미한다. 이에 우리지역의 전체 물 이용 및 관리의 효율화가 필수적이며, 물 이용량의 약 50%를 차지하는 농업용수의 효율적 이용 및 관리가 중요하다. 따라서 본 연구에서는 관개기에 필요한 물이 얼마나 사용이 되는지에 대한 작물의 생육시기별 필요수량을 산정하고, 산정된 필요수량의 갈수빈도분석을 실시하고자 한다. 갈수빈도분석을 통해 재현기간에 따른 작물의 순별 필요수량 따라 저류조에 유입되는 빗물의 양으로 얼마만큼 해결이 되는지 확인하여 빗물의 사용량을 산정하여 저류조의 적정 용량을 검토하고자 한다. 작물계수를 이용하여 작물별 필요수량은 HOMWRS　프로그램을 이용하여 산정하며, 작물별 생육시기에 따른 필요수량에 대한 갈수빈도분석은 수문 통계 분석과 적합도 검정을 통하여 GUM, PT3, GEV, GLO, GPA 및 GNO분포를 대상으로 적정 분포를 선정한다. 선정된 분포형을 통해 재배작물별 생육시기에 따른 필요수량 계열의 설계 필요수량을 산정한다. 이에 따른 필요수량과 갈수빈도분석 결과를 통해 재배작물의 순별 수요량을 추정한다. 재배작물의 순별 물 수요와 잠재적인 저류조의 높이를 통해 빗물을 얼마만큼 재이용할 수 있는지에 대한 수용 비율(sufficiency ratio)을 산정하고. 순별 수요량에 따른 밭 작물의 적정 빗물 저류조 용량을 결정하는 방법을 제시하고자 한다.