• The Mathematical Education
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• v.60 no.4
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• pp.451-466
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• 2021

The interaction between student and school levels should be considered to understand and examine equity in education. For this reason, we included the socioeconomic composition of schools to scrutinize the equity related to students' socioeconomic status and mathematical literacy in Korea. We applied the hierarchical linear modeling approach to the Programme for International Student Assessment (PISA) 2015 data for binational comparison between Korea (5,548 students from 168 schools) and the U.S. (5,217 students from 161 schools). The findings show that school-level achievement and the socioeconomic composition of schools cannot be ignored to understand Korean students' achievement gap between high and low socioeconomic status. In addition, U.S. students from low socioeconomic status were likely to have similar mathematics literacy scores. These findings indicated that inequity in Korean mathematics education could be intertwined with the characteristics of Korean students like high demands for supplementary private education and school characteristics like curriculum selection. This research also reminds mathematics educators that people should not simply mimic other education systems to resolve education issues in their own system.

• The Korean Journal of Pesticide Science
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• v.14 no.2
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• pp.133-137
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• 2010

A field investigation was carried out for two years to analyze yield loss due to soybean anthracnose caused by Colletotrichum truncatum and to determine its economic threshold limit. Anthracnose severity in terms of % diseased pods was negatively correlated with yield, number of normal seeds per plant and number of pods per plant, and positively correlated with % abnormal seeds with correlation coefficients of -0.85, -0.78, -0.64, and 0.80, respectively. A simple linear regression model was obtained as Y=-1.7781X+164.22 with $R^2$=0.8092, when the soybean yields (Y) were predicted using anthracnose severity (X) as an independent variable. The yield levels could be predicted as high as 80.92%. Based on this equation, spray threshold without economic considerations was estimated as 6.9 in % pods infected with anthracnose. Economic threshold limit and economic spray threshold able to compensate the costs of fungicide sprays were determined as 11.9% and 9.5%, respectively.

• 주택과사람들
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• s.104
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• pp.177-204
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• 1999

본 논문은 통계적 기법을 사용하여 이주시 아파트를 주택유형으로 선택하는 입주자의 사회$\cdot$경제적 특성을 실증적으로 분석하고자 한다. 이를 위하여 아파트를 선택하는 주민의 인구사회적, 경제적 특성을 분석하는 한편 주거상태와 향후 희망하는 주거상태가 아파트 선택에 영향을 미치는 요인은 무엇인가를 로짓모형을 통해 밝히는데 목적을 두고 있다. 부산시의 주민 2000가구의 설문조사결과를 통해 향후 아파트로 이주하고자 희망하는 주민의 특성 및 현 주거와 향후 주거선호와 관련된 사항을 분석한다. 연구결과 가구의 아파트를 선택하는데 있어서 그 가구의 현주거상태와 희망하는 주거수준, 그리고 가구의 사회$\cdot$경제적 특성이 작용하는데 현주택상황과 관련하여서는 현 주택규모가 클수록 아파트를 선택하는 경향이 있으며, 희망하는 주거수준과 관련해서는 희망하는 주택의 방수가 적을수록 아파트를 선택하는 것으로 분석되었다. 가구의 사회$\cdot$경제적 특성 중에서는 배우자의 학력이 높을수록 아파트를 선택하는 경향이 높게 나타났으며, 이 변수는 어떠한 독립변수보다 아파트 선택에 강하게 작용하는 경향이 높게 나타났으며, 이 변수는 어떠한 독립변수보다 아파트 선택에 강하게 작용한다. 이밖에 가구의 월평균소득과 월평균 저축도 아파트를 선택하는데 영향을 미치는 것으로 분석되었다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.2
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• pp.765-771
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• 2010

This study was carried out to examine relationships between financial pressures, depression, the quality of life related with economic stress factors on patients suffering from chronic strokes residing in Daejeon. 209 patients with chronic stroke being treated in genernal hospital were selected as subjects for this study. Data were collected by conducting 1:1 interviews through questionnaires. The study examined differences in patients' economic stress, depression, standard of living and the quality of lives through collected data. The results showed statistically meaningful analysis in standard of living(p<.000), economic pressure (p<.000), depression (p<.05), the quality of life (p>.05), the standard of living (p<.05). The higher the economic pressure, depression indexes or very severe the standard of living the lower the quality of life index, so the economic stress meaningfully increases. If an objective economic stress index is devised by measuring the level of economic burdens in common with guardians of patients and patients themselves, the index will become clinically important data. Furthermore, there requires the development of medical mediation that can reduce economic stress and increase the quality of life for patients suffering from strokes.

• Journal of Energy Engineering
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• v.18 no.3
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• pp.175-190
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• 2009

This study examines the influence of scale economy, technology, financing capability and market competition on economic performance by value chain in Korean solar energy companies, using the multiple logistic regression analysis. The current profit ratio is analyzed to have been positively affected by financing capability, while negatively by market competition. The scale economy and technology are analyzed to have no statistical significance on the economic performance. The current profit ratio for companies creating higher value in the sourcing process is negatively affected by technology while positively by financial capability. The one in the manufacturing process is affected positively by technology and financing capability, and the one in the marketing process is affected positively by financing capability while negatively by market competition. The implications of this study are as follows: Korean solar energy industry is recommended i) to establish the specific innovation system for technology development, ii) to set up advanced financial system, iii) to carry out the fractal system, the manufacturing system through the network of the firms owning core competence per value chain.

• Journal of Preventive Medicine and Public Health
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• v.31 no.3 s.62
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• pp.503-515
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• 1998

In order to investigate the factors influencing QOL and life satisfaction of the physically disabled, the author interviewed, by using structuralized questionnaire, 440 individuals among the physically disabled who were participated in Health Examination from April to July, 1997. The questionnaire consisted of the general characteristics(sex, age, marital status, family number, etc), the Reintegration to Normal Living Index(RNLI) to assess QOL, and the single item of five-likert scale to evaluate life satifaction. The means of RNLI were $16.2{\pm}4.8$ in total score, $12.2{\pm}3.4$ in daily functioning and $4.0{\pm}2.1$ in perception of self. The respondents were less reintegrated toward social activities and relationships than impairments or disabilities. While the satisfied group was 47.3%, the dissatisfied group was 52.7%. As the results of multiple regression and logistic regression analysis, the significant predictors of QOL were age, education, job, grade of disability and subjective health status. The life satisfaction were related to economic status, job and subjective health status. To improve QOL and life satisfaction of the physically disabled, it is important that we improve their basic socioeconomic status by getting a job through rehabilitation education and induce them to have positive self-assessment by extending the opportunity of social participation.

• The Southeast Asian review
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• v.24 no.2
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• pp.1-33
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• 2014

아세안은 한중일과의 무역을 통한 경제적 연계의 심화현상과 최근 글로벌 위기로 인한 경기침체를 고려하여 새로운 경제성장추진을 위해 동북아의 한중일 삼국과의 무역자유화를 적극 추진하고 있다. 이미 ASEAN-중국, ASEAN-일본, ASEAN-한국 양자간 자유무역협정(FTA)이 발효되어 실행되고 있으며, 이들 3개 양자협정을 아우르는 A+3FTA(ASEAN+중국+일본+한국) 논의도 진행중이다. 이에 본 연구는 이들 4개 자유무역협정의 경제적 효과를 분석하여 과연 A+3FTA가 아세안은 물론 동아시아 역내에서 보다 바람직한 통상정책인지를 평가한다. 본 논문의 정성적 평가는 기존의 경제통합의 경제적 효과를 결정하는 이론에 근거하여 참여국의 제반 경제적 현황(경제규모, 소득수준, 경제개발수준, 거래비용, 무역 및 산업구조, 관세율 등)을 통계적으로 비교 분석한다. 한편 정량적 평가는 무역의 경제적 파급효과 분석에 널리 이용되고 있는 연산가능한 일반균형모형(CGE)분석방법을 적용한다. 정태적 효과의 분석을 위해서 GTAP 모형을 이용하며, 이와 더불어 동태적으로 투자를 통한 자본축적을 반영하는 자본축적 CGE 모형분석을 병행한다. 분석결과 후생 및 생산확대 측면에서 아세안의 경우 일본과의 양자간 FTA가 한국이나 중국과의 FTA에 비해 보다 긍정적인 후생증진을 가져올 것으로 기대되며, 아세안과 한중일 모두에게 A+3FTA가 동아시아 역내에서 보다 바람직한 자유무역협정이 될 것으로 평가된다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.10
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• pp.6517-6526
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• 2015

This study analyzes the technical level and shows the priority technology for suspension bridges that play an iconic role as the country's landmark and contain an economic value. Analysis results show the technical level of suspension bridge is 82 percent compared to developed countries. In detail, the technical levels of 'materials', 'planning and design', and 'construction and maintenance' are 80.2 %, 81.7%, and 83.7% respectively. This study analyzes economic, social, technical importances and presents 'high-performance packaging material' as a priority technology.

• Korean Journal of Social Welfare
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• v.62 no.1
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• pp.109-132
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• 2010

This study examined the effects of depression by household's economic factors with income levels using the wave 1, 2 of Korean Welfare Panel Study. As a result, changes in income satisfaction have significant effects on depression levels. In non-poor households, the income and comsumption expenditure have effects on depression levels. But poor households do not have any effects. Among the control variables, age, marital status, and education level are influential factors on the depression levels. Based on the results, the author was able to recognize the economic factors in household that influnce the depression levels. and The policy directios for household's economic support were discussed.

• RED RIBBON
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• s.52
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• pp.24-25
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• 2003

전세게 HIV 감염인 중 삼분의 이를 차지하는 검은 대륙, 아프리카. 경제적 빈곤과 낮은 교육수준 등으로 인하여 에이즈예방과 치료는 먼 얘기에 그치고 있다. 에이즈문제가 사회적, 경제적 문제로 대두되고 있는 아프리카의 에이즈 현황은 어떨까?