• 품질경영학회지
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• 제42권3호
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• pp.361-372
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• 2014

Purpose: In this paper, we investigate whether the endeavors for 6 sigma quality management by a firm have positive effects on its financial performance and the length of 6 sigma implemented period affects its financial status. Methods: We conduct the analysis using the data from Workplace Panel Survey 2009. We use multiple linear regression in order to analyze the relationship between the efforts for quality management and financial performance. Specifically, the return on assets (ROA) and return on equity (ROE) are investigated as dependent variables and the efforts for quality management as independent variable. The Box-Cox transformation and Cook's distance are also used. Results: As a result of the analysis, the indication is that companies that put effect into the six sigma quality management have a positive result in its financial status. In detail, the efforts for six sigma quality management have positive effects on total asset turnover ratio and six sigma implemented period on net income to net sales ratio. Additionally, companies with longer(shorter) period of six sigma program have more (less) improvement in its financial status. Conclusion: It can be concluded that the company's efforts for quality management positively influence financial performance.

• Asian-Australasian Journal of Animal Sciences
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• 제25권8호
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• pp.1063-1072
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• 2012

Effective population size ($N_e$) is an important measure to understand population structure and genetic variability in animal species. The objective of this study was to estimate $N_e$ in Sapsaree dogs using the information of rate of inbreeding and genomic data that were obtained from pedigree and the Illumina CanineSNP20 (20K) and CanineHD (170K) beadchips, respectively. Three SNP panels, i.e. Sap134 (20K), Sap60 (170K), and Sap183 (the combined panel from the 20K and 170K), were used to genotype 134, 60, and 183 animal samples, respectively. The $N_e$ estimates based on inbreeding rate ranged from 16 to 51 about five to 13 generations ago. With the use of SNP genotypes, two methods were applied for $N_e$ estimation, i.e. pair-wise $r^2$ values using a simple expectation of distance and $r^2$ values under a non-linear regression with respective distances assuming a finite population size. The average pair-wise $N_e$ estimates across generations using the pairs of SNPs that were located within 5 Mb in the Sap134, Sap60, and Sap183 panels, were 1,486, 1,025 and 1,293, respectively. Under the non-linear regression method, the average $N_e$ estimates were 1,601, 528, and 1,129 for the respective panels. Also, the point estimates of past $N_e$ at 5, 20, and 50 generations ago ranged between 64 to 75, 245 to 286, and 573 to 646, respectively, indicating a significant $N_e$ reduction in the last several generations. These results suggest a strong necessity for minimizing inbreeding through the application of genomic selection or other breeding strategies to increase $N_e$, so as to maintain genetic variation and to avoid future bottlenecks in the Sapsaree population.

• 한국콘텐츠학회논문지
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• 제16권7호
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• pp.484-491
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• 2016

본 연구는 육아지원기관 이용기간과 아동의 언어 인지 발달 정도에 어떠한 상관관계가 있는지 연구하고, 이를 통해 아동 발달을 긍정적인 측면으로 이끄는데 그 목적이 있다. 이를 위하여 육아정책연구소 한국아동패널의 5차년도(2012) 자료를 사용하였으며, 조사에 응답한 1703가구 중 대상을 제외한 총 913가구를 대상으로 하였다. IBM SPSS Statistics SPSS 23 프로그램을 이용하여 빈도분석, t검정, 분산분석, 다중 선형회귀분석(multiple linear regression analysis) 등을 통하여 결과를 도출하였다. 분석 결과, 육아지원기관 이용 기간과 아동의 언어 인지발달 사이에 유의한 상관관계가 있었으며, 육아지원기관 이용기간이 길수록 아동의 언어 인지 발달이 높다는 것을 알 수 있었다. 이를 보건 정책에 적용하여 무상보육정책을 확대한다면, 아동의 언어와 인지 발달 정도에 긍정적인 영향을 미칠 것이라 예상된다.

• Membrane and Water Treatment
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• 제10권1호
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• pp.1-11
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• 2019

The Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report (AR5) predicted that recent extreme hydrological events would affect water quality and aggravate various forms of water pollution. To analyze changes in water quality due to future climate change, input data (precipitation, average temperature, relative humidity, average wind speed and sunlight) were established using the Representative Concentration Pathways (RCP) 8.5 climate change scenario suggested by the AR5 and calculated the future runoff for each target period (Reference:1989-2015; I: 2016-2040; II: 2041-2070; and III: 2071-2099) using the semi-distributed land use-based runoff processes (SLURP) model. Meteorological factors that affect water quality (precipitation, temperature and runoff) were inputted into the multiple linear regression analysis (MLRA) and artificial neural network (ANN) models to analyze water quality data, dissolved oxygen (DO), biological oxygen demand (BOD), chemical oxygen demand (COD), suspended solids (SS), total nitrogen (T-N) and total phosphorus (T-P). Future water quality prediction of the Anseongcheon River basin shows that DO at Gongdo station in the river will drop by 35% in autumn by the end of the $21^{st}$ century and that BOD, COD and SS will increase by 36%, 20% and 42%, respectively. Analysis revealed that the oxygen demand at Dongyeongyo station will decrease by 17% in summer and BOD, COD and SS will increase by 30%, 12% and 17%, respectively. This study suggests that there is a need to continuously monitor the water quality of the Anseongcheon River basin for long-term management. A more reliable prediction of future water quality will be achieved if various social scenarios and climate data are taken into consideration.

• 한국습지학회지
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• 제17권4호
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• pp.348-358
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• 2015

기후변화로 인한 영향은 한반도뿐만 아니라 전 지구적으로 관찰되고 있다. 지난 100년간(1911 ~ 2010년) 전 지구적으로 $0.75^{\circ}C$가 상승한 반면, 한반도의 평균기온은 약 $1.5^{\circ}C$가 상승하였다. IPCC(Intergovermental Panel on Climate Change)에서 발간한 5차 기술보고서에 수온의 증가와 홍수 및 가뭄을 포함하는 극한 수문 사상의 변화는 수질에 영향을 미쳐 여러 가지 형태의 수질 오염을 보다 악화시킬 것으로 전망되고 있다(KMA and MOLIT, 2009). 본 연구에서는 기후변화에 따른 강원도 북한강에 위치한 홍천강 유역의 수질 변화를 분석하기 위하여 기후변화 시나리오 자료를 적용하여 미래유량을 각 목표 기간별로(Obs : 2001 ~ 2010년, Target I : 2011 ~ 2040년, Target II : 2041 ~ 2070년, Target III : 2071 ~ 2100년) 산정하였다. 또한, 수질 변화를 예측하기 위하여 미래유량을 토대로 유황분석을 시행한 후 다중회귀분석모형과 인공신경망모형을 통해 미래 수질변화를 분석하였다. 홍천강 유역의 수질예측 결과, 21세기 말 여름철에 생물학적 산소요구량, 화학적 산소요구량, 부유물질이 최대 16%, 13%, 15% 증가할 것으로 예측되어, 지속적이며 장기적인 수질 모니터링과 관리가 필요할 것으로 판단된다. 또한, 본 연구에서 사용한 기후자료뿐만 아니라 사회적 시나리오를 고려한다면 보다 신뢰성 있는 미래 수질 모의가 이루어질 것으로 판단된다.

• 한국산학기술학회논문지
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• 제21권5호
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• pp.607-614
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• 2020

본 연구는 한국 당뇨병 성인의 삶의 질 수준을 파악하고 삶의 질 수준에 따른 영향요인의 차이를 확인하기 위하여, 2015년도 한국의료패널 자료를 이용한 2차분석 연구이다. 당뇨병을 진단받은 만 19세 이상 성인 중 대상자 선정기준을 충족한 1,343명의 자료를 multiple linear regression과 quantile regression 등으로 분석하였다. 연구결과, 연구대상자의 삶의 질은 평균 .86(±.14)점이었다. 연구대상자의 삶의 질에 영향을 미치는 요인은 연령, 성별, 교육수준, 배우자 유무, 경제활동 유무, 건강보험 종류, 규칙적인 신체활동이었다(all p<.05). 그러나 연구대상자를 삶의 질 수준에 따라 세 집단으로 구분하고 확인한 결과에서는 하위 25% 집단은 연령, 성별, 교육수준, 배우자 유무, 경제활동 유무, 건강보험 종류, 규칙적인 신체활동이고, 중간 50% 집단은 연령, 성별, 교육수준, 배우자 유무, 건강보험 종류, 규칙적인 신체활동이며, 상위 75% 집단은 배우자 유무, 경제활동 유무, 가구당 수입, 건강보험 종류, 당뇨병 유병기간으로, 삶의 질 수준에 따른 영향요인에 차이가 있었다. 본 연구의 결과를 바탕으로, 당뇨병 성인의 삶의 질을 향상시키기 위하여 삶의 질 수준에 따른 영향요인의 차이를 고려한 차별화된 중재 전략이 개발 및 제공되어야 할 것이다.

• 보건의료산업학회지
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• 제8권3호
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• pp.49-61
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• 2014

Due to the rapid population's aging, the life span's expansion and social & cultural characteristics, the standards of age classes in senescence are changed. Thus, this study aimed to identify the influential factors on health care utilization in the elderly by age class, and targeted 2,937 adults in their ages over 55 years old from the Korea Health Panel's 2009 Yearly Integrated Data. This study investigated the target health care utilization in the elderly in relation with the gender, the education level, the health-care insurance type, the income, the current job state, the chronic disease. In order to analyze the influential factors on health care utilization in the elderly, the multiple linear regression analysis was conducted to the data. As the results from this study, Concerning the influential factors on the health care utilization, the income, the subjective health state, the chronic disease and the regularly meals for the young-old influenced. Concerning the influential factors on the health care utilization, the subjective health state for the old. Concerning the influential factors on the health care utilization, the subjective health state, the income for the older-old influenced. Concerning the influential factors on the health care utilization, the education level, the spouse, the economic activity and the drinking oldest-old influenced. Therefore, it will need to provide systemic health-care & medical services, to develop health-care & medical programs and the health-care & medical policies and to execute them according to the age classes in senescence.

• 보건행정학회지
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• 제22권3호
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• pp.451-465
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• 2012

In order to strengthen assurance of National Health Insurance, co-payment should be reduced. This can happen with collaborative efforts of patients, medical institutes, and government altogether at the same time. This research applied Dutton(1986)'s medical service research model with high R-square, and analyzed 2008 Korea Health Panel Data (Beta Version 1), that was examined by Korea Institute for Health and Social Affairs and National Health Insurance, in order to figure out influential variables on co-payment. In result of Multiple Linear Regression Analysis, R-square was 46.7%, the older the age, the patients who had surgery, the longer days of hospital treatment are, the higher gross income of a household is, the more hospitalized in upper grade general hospitals, and the more upper grade rooms and selecting a doctor are used. The results have statistical significance. When conducting research applying medical service research model, there is a need to apply Dutton(1986)'s medical service research model with high R-square. In order to strengthen assurance of National Health Insurance, first conditions should be that patients are hospitalized in upper grade general hospital, and at the same time, are patients who had surgery with long stay of hospitalization. In addition, if proven that patients used upper grade rooms and selecting a doctor due to lack of regular treatment and rooms, for certain number of days of such hospitalization, it is suggested to be provided with health care insurance in upper grade rooms and selecting a doctor in calculating co-payment limit.

• 통상정보연구
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• 제13권4호
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• pp.125-149
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• 2011

최근 가속화되고 있는 한국의 FTA 체결 및 발효 시점에서 기술격차가 있는 국가간의 FTA는 산업집적효과 등에 의한 동태적인 산업구조 재편 차원에서 기술열위국에 부정적인 효과가 있을 수 있는 만큼 본 연구의 목적은 우리나라의 FTA를 통한 기술무역에 대한 현황 및 전략적 대웅방안을 모색해 보는데 있다. 우리나라가 체결한 FTA, 즉, 한-칠레, 한-EFTA, 한-Asean, 한-인도, 한-EU 이렇게 5개 그룹으로 분류한 FTA발효국만을 대상으로 각각 5년간 기술무역 수지 및 산업별, 기술유형별 중심으로 기술무역수지를 살펴보기로 한다. 또한 이러한 5개 그룹 FTA국과의 기술무역 장애요인 및 기술무역 활성화방안을 모색하였다.

• 지역사회간호학회지
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• 제30권2호
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• pp.217-225
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• 2019

Purpose: The purpose of this study is to assess socio-demographic, disaster-related, physical health-related, psychological, and social factors that may adversely affect disaster victims' QoL (Quality of Life). Methods: A cross sectional study was designed by using the secondary data. From the 3rd Disaster Victims Panel Survey (2012~2017), a total of 1,659 data were analyzed by using descriptive statistics including frequency, percentage, t-test, ANOVA, and multivariate linear regression. Results: Older people with lower health status lacking financial resources prior to a disaster were more at risk of low levels of QoL. Lower levels of perceived health status, resilience, and QoL were reported by disaster exposed individuals, while their depression was higher than the depression in the control group of disaster unexposed ones. Resilience, social and material supports were positively associated with QoL whereas depression and PTSD (Post-Traumatic Stress Disorders) were negatively associated. Conclusion: These findings suggest that psychological symptoms and loss due to disasters can have adverse impacts on the QoL of disaster victims in accordance with their prior socio-demographic background. They also indicate that targeted post-disaster community nursing intervention should be considered a means of increased social support as well as physical and mental health care for disaster victims.