• Fire Science and Engineering
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• v.20 no.4 s.64
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• pp.116-124
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• 2006

Multiplex movie cinemas are cultural spaces where an indefinite number of people from a variety of classes and ages can enjoy movies, food, and leisure all together in one place at the same time. Those facilities which a great number of people use together like multiplex movie theaters are relatively vulnerable to fire safety, compared with other facilities to protect from fire. Considering the special nature and vulnerability of multiplex movie theaters from a fire safety standpoint, this study aims to seek measures to acquire fire safety performance of the specific facilities by selecting exemplary models of local multiplex movie theaters, performing fire and evacuation simulations for them, and reviewing and analyzing their present problems in evacuation safety as well as the relevant regulations of many countries.

• Journal of The Korean Association of Information Education
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• v.23 no.5
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• pp.499-511
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• 2019

The preceding study of this study developed puzzle-based computer science education programs to enhance the computational thinking of elementary school students over 1 to 3 times. The preceding study then applied such programs into the field, categorized the effects of education into CT creativity and CT cognitive ability to improve the education programs. Based on the results of these preceding studies, the hierarchical Bayesian inference modeling was performed using age and CT thinking ability as parameters. From the results, this study predicted the effectiveness of puzzle-based computer science education programs in middle and high schools and proposed major improvement areas and directions for puzzle-based computer science education programs that are to be deployed in the future throughout middle and high schools.

• Journal of Labour Economics
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• v.42 no.2
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• pp.63-99
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• 2019

This paper estimates the effect of the minimum wage increment on employment and work-hour of new workers in Korea using the data from the Survey on Labor Conditions by Type of Employment (SLCTE) from 2008 to 2017. We construct worker groups by sex, age, and education to mitigate endogeneity problem in estimating the effect of minimum wage increment. The result shows that the minimum wage increment leads to decrease of new employment and increase of the ratio of new workers who work less than 15 hours per week. Especially, women, the elderly, the youth, and under high school education level group are sensitive to the minimum wage increment.

• The Journal of Korean Society for School & Community Health Education
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• v.20 no.1
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• pp.97-111
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• 2019

목적: 최근 이명의 발생률이 증가하고 있으나 이명에 대한 정확한 원인 발견이 어려운 실정이다. 한국의 경우도 예외는 아니며, 사회경제적 상태에 따른 이명여부를 분석하고자 한다. 방법: 국민건강영양조사 제 5기(2010-2012)의 원시자료를 이용하였으며, 연구 대상자인 40세 이상 12,041명을 다중 로지스틱 회귀분석을 실시하였다(95% CI). 결과: 40세 이상 중년인구의 사회경제적 상태에 따른 이명여부는 통계학적으로 유의한 차이가 있는 것으로 나타났다. 이명의 발생여부는 연령이 높을수록(p<.0001), 직업군에 따라서(p<.0001), 대사증후군이 있는 자(p<.0001), 교육수준이 낮을수록(p<.0001), 기초생활수급자(p<.0001), 배우자가 없는 자(p<.0001), 스트레스가 많을수록(p<.0001), 우울증이 높을수록(p=.0034) 이명이 발생하였다. 회귀분석 결과 여성의 경우 대상자의 학력이 초등학교 이하인 그룹에서 교차비가 높았으며(OR:1.784, 1.322-2.408) 소득이 하위계층인 그룹에서 교차비가 높았다(OR:1.591, 1.293-19.58). 하지만 남성의 경우에는 유의한 결과가 나오지 않았다. 결론: 본 연구는 40세 이상 중년인구의 사회 경제적 상태에 따른 이명여부를 파악함으로써 남성보다 여성에서 사회경제적 수준에 따라 이명여부에 영향을 많이 받는 것을 밝혀낸 것에 연구의 의의가 있다.

• Journal of the Korea Society of Computer and Information
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• v.27 no.10
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• pp.245-254
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• 2022

In this study, we derived selection factors for OTT services based on previous studies and presented an hierarchy process analysis model to calculate the weights for each evaluation. To evaluate the OTT selection factors, OTT customer data was used for the analysis. The results showed that of the first stage factors of economic feasibility, system excellence, convenience, diversity, playfulness, and responsiveness, diversity is the most important. When the weights for first stage and second stage factors were synthesized, entertainment was the most important factor. Lastly, this study analyzed whether there is a difference in the weight of the selection factor for the first stage of OTT service according to gender and age. This study shows which factors consumers prioritize when using OTT services.

• The Journal of the Korea Contents Association
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• v.13 no.3
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• pp.444-455
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• 2013

The purpose of this study is to explore the selection attributes for parents of children with language disability when choosing a clinic. The data collection was carried out in 3 steps: the preliminary survey, first open survey and second survey in AHP(Analytic Hierarchy Process). The subjects of were 252 in total. The results were as follows: First, The order of priority attributes in superior categories for parents of children with language disability when selecting a clinic were 'therapist-related attributes', 'program-related attributes' and 'physical-related attributes' in turn. The top 5 priority attributes in subcategories were 'therapist's academic background and major', 'ability to make a rapport', 'clinical experience and qualification of therapist', 'kindness and confidence' and 'counseling program for parents'. Second, The parents of preschoolers age 6 and younger chose 'clinical experience and qualification of therapist', 'counseling program for parents' and 'learning materials' for the most priority attributes, whereas the parents of students age from 7 to 12, considered 'therapist's academic background and major', 'clinical fee' and 'distance transport parking' more importantly to select a clinic. The results of this study provided preliminary data for successful planning of speech and language therapy.

• Journal of the Korean Data and Information Science Society
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• v.24 no.6
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• pp.1385-1400
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• 2013

This paper discusses income replacement ratios of national pension, retirement pension and individual annuities in Korea. These ratios are useful indicators for the assessment of retirement income security of workers. This paper projects income replacement ratios, using the pension entry rate, decrement rates, and life tables of the National Statistical Office. The result of the actuarial projection is that the income replacement ratio of national pension is approximately 21.0 to 22.7%, that the income replacement ratio of retirement pension is about 5.8 to 9.7%, and that the income replacement ratio of an individual annuity is about 13.5 to 21.0%, respectively. The income replacement ratio by income varies due to the effects of income redistribution in national pension and retirement pension, but the income replacement ratio of an individual annuity is constant, regardless of income.

• Journal of Labour Economics
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• v.24 no.1
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• pp.35-66
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• 2001

This study first attempted to measure the job instability of Korean labor market by exploiting the data sets of 1998 and 1999 Korean Labor Panels. In order to compare the degrees of job instability of Korea with the one of U.S., we followed the same empirical methods used by Jaeger and Stevens(1999), Neumark et al.(1999), Bemhardt et al.(1999) recently published in the Journal of Labor Economics (vol. 17). Our empirical results suggest that the job retention rate of the Korean labor market during the IMF economic crisis was decreased to the level that the U.S. labor market has never experienced during the past two decades. One noticeable point regarding our estimated four year retention rate is that it takes a form of plateau peaked around 9 and 15 tenure year, which is in sharp contrast with the four year retention rate of u.S. showing a monotonically decreasing tendency over tenure periods. The comparison of 2-year retention rates before and after the economic crisis suggests that job stabilities has been conspicuously aggravated especially for cohorts of long tenure, irregular job, old age, service and sales jobs.

• Korean Journal of Social Welfare Studies
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• v.48 no.4
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• pp.59-89
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• 2017

Changes in the public welfare attitudes are very important to the welfare politics and policy. Considering that variability of public welfare attitudes has been ignored in previous studies, we analyzed welfare attitudes changes at individual level in Korea. Using the longitudinal data from the Additional Survey of 2010/2013/2016 Korea Welfare Panel Survey, we analyzed the changes in public welfare attitudes during 2010th-2016th years. Major findings are as follows. First, one of the findings from analysis is that the public welfare attitudes are very active and dynamic in Korea. This finding is contradiction to the results of the previous researches that are point to the stability or inertia of the public welfare attitudes in western welfare states and also in Korea. Second, occurrences of the welfare attitudes change are related with various individual characteristics; income status, occupation status, age, region, sex, political ideology, etc. These results from this study on the welfare attitudes change suggest that dynamics of the Korea welfare politics in recent years reflected the dynamic changes in public welfare attitudes. And, they suggest that Korea welfare politics are transformed from the traditional classes welfare politics to the new welfare politics which are influenced by various interests of the socio-demographic groups.

• 한국노년학
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• v.38 no.4
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• pp.963-979
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• 2018

The purpose of this study was to identify frailty profiles based on physical, psychological, and social domains of functioning and to examine the associated factors showing the differences among frailty profiles. Respondents were 70 years and older(n=403) and latent class analysis was applied to determine the optimal subgroups based on Tilberg Frailty Indicators which comprised of three domains(the physical, psychological, and social domain). Also, we performed multinominal logistic regression analysis to find out factors making differences among frailty profiles. Latent class analysis(LCA) identified three distinct types: multi-frail type(27.0%), psychologically frail type(26.8%), inadequate support type(46.2%). All three types had common difficulties in dealing with daily life problems and did not receive enough help with theses difficulties. Based on the results of the LCA three-class models, people in multi-frail type accumulated problems in physical and psychological domains and had partially social domain. On the other hands, psychologically frail type showed a relatively high anxiety disorder and depression. Lastly, people in inadequate support type reported the lack of helps, but they were relatively healthy. Comparing these groups with inadequate support type, people with multi-frail had lower educational level, poor nutritional management status and were less likely to participate in labor market. People in psychologically frail type were more likely to be male, to live in big cities rather than middle and small cities, and less likely to smoke. Based on these results, our results showed the multifaceted concept of frailty among Korean elderly people and we suggested several implications for preventing frail process.