• Journal of Climate Change Research
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• v.5 no.1
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• pp.37-46
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• 2014

The purpose of this study is to analyze the determinants affecting Korean farmers' perception to climate change using multinomial logit and ordered logit model. The major findings of this study are summarized as follows. First, the results indicate that 85.7 percent of farmers have perceived climate change and 85.8 percent of farmers have anticipated that the impact of climate change on agriculture within 10 years. Second, the results show that farming experience, successor to farming, use of computer have a significant impact on expectation to climate change. Finally, the findings also indicate that sex, age, and education have a significant impact on expectation of the mean temperature to climate change.

• Journal of Family Resource Management and Policy Review
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• v.28 no.3
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• pp.29-40
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• 2024

The purpose of this study was to examine the effect of socioeconomic deprivation in single-person households on depression and to identify the moderating effect of age. To achieve this, data from 2,969 individuals aged 20 and older living in single-person households were analyzed using the 17th wave of the Korean Welfare Panel Study(2022). Socioeconomic deprivation was measured by 15 items related to six domains: food, housing, social security, economic status, social exclusion, and health and medical care. Depression was measured using the CESD-11 scale, while age was considered a continuous variable. The results showed a significant relationship between socioeconomic deprivation and depression, with age playing a moderating role. Specifically, socioeconomic deprivation had a stronger negative influence on depression thean older single-person households. Based on these findings, it is suggested that policy and practical interventions should take into account age-related changes in the life course when addressing the impact of socioeconomic deprivation on depression in single-person households.

• Electronics and Telecommunications Trends
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• v.9 no.4
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• pp.35-41
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• 1994

본 고는 한국을 포함한 17개국의 OECD 국가의 9개년간의 시계열자료와 횡단 자료를 결합한 panel 자료를 가지고 전기통신 투자와 경제 성장간의 인과 관계를 분석한다. 결과로 전기 통신 투자와 경제 성장 간의 상호적인 인과 관계를 확인한다. 이에 따라 2015년까지 정보 통신 기반 투자가 우리나라의 경제 성장에 영향을 미칠뿐만 아니라 경제가 성장함에 따라 정보 통신 투자가 유발된다는 사실을 경험적으로 제시한다.

• Journal of Korean Society of Environmental Engineers
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• v.32 no.7
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• pp.730-737
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• 2010

It is very important to remove fluoride ion before treating semiconductor wastewater containing high concentration of ammonia, phosphates, and fluoride ions by struvite formation. Calcium ion was generally added for the removal of fluoride ion. However, calcium ions remained after removal of fluoride ion can deteriorate the performance of struvite crystalization. It should be removed completely before struvite formation. In this study, the effect of fluoride and calcium ion concentration on the struvite crystalization was investigated. Removal efficiencies of ortho-phosphate with struvite formation were more abruptly decreased than those of ammonium nitrogen, as increase of fluoride ion concentration in synthetic wastewater. The structures of struvite formed in synthetic wastewater containing calcium ion of up to 500 mg/L were identical. Purity of struvite was deteriorated as increase of calcium ion over 500 mg/L. Removal efficiencies of ammonium nitrogen were more decreased than those of phosphate ions as increase of cacium ion in synthetic wastewater.

• Journal of the Korea Convergence Society
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• v.12 no.8
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• pp.67-75
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• 2021

This study was conducted to verify the factors affecting self-esteem of the 50-69 aged with low income in single person households. The subjects were 233 single households in the 50-69 aged low income from the 2019 welfare panel data provided by the Ministry of Health and Welfare. The dependent variable was defined as self-esteem, and independent variables were relationship satisfaction and life satisfaction. Data analysis was carried out by using SEM analysis, As a result, relationship satisfaction did not have a direct effect on self-esteem, with a low value (path coefficient =0.24). However, relationship satisfaction positively influenced life satisfaction (path coefficient =0.71), and life satisfaction positively influenced the self-esteem (path coefficient =0.46). Thus life satisfaction between relationship satisfaction and self-esteem had a mediator effect on self-esteem with 0.32 value. Therefore, establishing the strategy which supports poor single person households, policy makers should consider methods improving relationship satisfaction and life satisfaction.

• International Area Studies Review
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• v.14 no.2
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• pp.107-129
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• 2010

This study does the logistic regression analysis in a survey how Korean Small and Medium Enterprises(SMEs) recognize the effects of the Korea-India Comprehensive Economic Partnership (CEPA) on their business activities and strategies. The results show that Korean SMEs which have relatively more employees and bigger size in terms of sales have interest in the Korea-India CEPA. In particular, the SMEs which are engaged in their business activities with India have more interest in the CEPA than those that have not any business relations with India. However, the results show that they will not enter or expand their business fields in India even though the CEPA starts. It implies that Korean SMEs recognize that the CEPA will not affect their business significantly. Thus, this study has a policy implication for government to adopt/establish policies for SMEs utilizing the CEPA. It includes information services about the CEPA, India markets, a political corporation between the Governments for improving the partnerships in the trade and FDI and so on.

• Korean Association of Arts Management
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• no.55
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• pp.39-73
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• 2020

The recent rapid increase in single-person households has had a significant impact on the art performance market as well as the overall consumption trend. With the proportion of one-person viewers in the form of viewing the performance nearly half, the new term "Hongongjok" is widely used. Representing the trends of 'one-person consumption' and 'consumption for me' is the concept of 'self-gift' that consumes special for myself. This study introduced the concept of self-gift as a framework for understanding a new group of performance viewers who lavishly investing in consumption for one's sake. It also demonstrated how self-gift motivation affects the perceived value and the intention of self-gift. As a result of the analysis, the motivation for reward, therapeutic personal disappointment, and therapeutic negative mood reduction of the self-gift had a significant effect on the intention of self-gift through the perceived value of classical music performances. In addition, it was also revealed through the multi-group analysis that there was a significant difference in the effect of self-gift motivation factors between a single viewer and two or more accompanying viewers. This study contributes to the fact that the art performance industry can be provided the first theoretical basis for understanding these customer groups in order to respond to the consumption trend for one-person viewers. It also offered practical implications for revitalizing the stagnant classical music performance market by framing the art performance as a self-gift.

• Journal of Digital Convergence
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• v.20 no.5
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• pp.357-362
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• 2022

This study classified the characteristics of one-person media into two factors: interactivity and entertainment, and investigated the effect on intention of usage and the mediating effect of perceived value. In order to confirm this, this study conducted an empirical analysis targeting Chinese people who have experience watching one-person media real-time broadcasting and Chinese students studying in South Korea. As a result of the analysis, it was found that the interactivity and entertainment of one-person media had a positive (+) effect on intention of usage, and the partial mediating role of the perceived value was also verified in the relationship between the characteristics of one-person media and the intention of usage. Based on the above results, characteristics such as interactivity and entertainment of one-person media were identified as important factors that can increase users' intention to use. In addition, it also introduces the significance of this study, and reviews the limitations of the study and the direction of follow-up research.

• The Microorganisms and Industry
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• v.14 no.3
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• pp.27-30
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• 1988

호수의 부영양화는 자연적으로 진행되는 과정이다. 다만 인간활동에 의하여 가속될 뿐이다. 이 부영양화의 원인으로는 인이 가장 중요한 위치를 차지하고 있고, 부영양화의 결과로는 단순한 수질악화 뿐만 아니라, 우리의 생활및 생존을 위협하게 된다. 부영양화의 방지에는 여러 방법이 있으나, 가장 좋은 방법은 인의 유입을 막는 것 뿐이다.

• Radioisotope journal
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• v.15 no.3
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• pp.78-92
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• 2000

낮은 선량의 방사선피폭으로 인한 건강 위해의 여부에 대하여 과학적 현황을 고찰하였다. 선량과 영향 사이에 문턱 없는 선형비례 모델(LN-T모델)에 대해 역학적, 수학적, 방사선생물학적 측면의 긍정적 논리와 호메시스, 적응반응, 통계적 관점의 비판적 논거를 대비하여 평가하였다. 방사선 피폭이력자에게 발현한 확률적 영향 특히 백혈병을 포함한 암에 대해 그 질환의 방사선 인과성 판단에 대한 애로와 접근 방향을 논의하였다. 객관적인 평가 지표의 하나로 기인확률(PC)을 적용하되 근로자에 대한 제도적 배려 등 고려할 사항을 논의하였다.