• Title/Summary/Keyword: Discriminatory analysis

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Analysis of Korean firm's demand on R&D partnership (기업의 연구개발 협력 현황 및 수요 분석)

  • Moon Hye-Seon
    • Journal of Korea Technology Innovation Society
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    • v.9 no.2
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    • pp.373-390
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    • 2006
  • In knowledge-based economies, the facilitation of knowledge diffusion among R&D performing actors has become the most important factor for the growth of national science and technology. Korea has strived for revitalizing R&D partnerships between public and private sectors since 1970, but results of KIS (Korean innovation survey) data analysis show that R&D cooperation with public institute or academic sector are not a great help to Korean firm's innovation on the whole. Especially, in small and medium sized firm, R&D partnerships with public sector do not have positive influence on their innovation. This implies policies of activating R&D partnership should be formulated based on firm's cooperation demand. In addition to this, discriminatory cooperation plans between large firms and small and medium sized firms are needed to raise the effectiveness of R&D partnership.

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Assessing the Impact of Socio-economic Variables on Breast Cancer Treatment Outcome Disparity

  • Cheung, Min Rex
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.12
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    • pp.7133-7136
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    • 2013
  • Background: We studied Surveillance, Epidemiology and End Results (SEER) breast cancer data of Georgia USA to analyze the impact of socio-economic factors on the disparity of breast cancer treatment outcome. Materials and Methods: This study explored socio-economic, staging and treatment factors that were available in the SEER database for breast cancer from Georgia registry diagnosed in 2004-2009. An area under the receiver operating characteristic curve (ROC) was computed for each predictor to measure its discriminatory power. The best biological predictors were selected to be analyzed with socio-economic factors. Survival analysis, Kolmogorov-Smirnov 2-sample tests and Cox proportional hazard modeling were used for univariate and multivariate analyses of time to breast cancer specific survival data. Results: There were 34,671 patients included in this study, 99.3% being females with breast cancer. This study identified race and education attainment of county of residence as predictors of poor outcome. On multivariate analysis, these socio-economic factors remained independently prognostic. Overall, race and education status of the place of residence predicted up to 10% decrease in cause specific survival at 5 years. Conclusions: Socio-economic factors are important determinants of breast cancer outcome and ensuring access to breast cancer treatment may eliminate disparities.

TV Advertsing Information-Processing Competencies of Children Consumers Based on Consumer Socialization (소비자사회화측면에서 본 아동소비자의 TV광고정보처리능력)

  • 박수경;이기춘
    • Journal of Families and Better Life
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    • v.8 no.1
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    • pp.31-47
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    • 1990
  • The purpose of this study were to investigate: 1) The level of information-processing competencies of children consumers. 2) The differences of information-processing competencises of children consumers according to the cognitive development stage, the variables related to social learning and the socio-ecomonic variables. 3) The independent influences of variables related to information-processing competencies of children consumers. 4) The independent influences of variables related to information-processing competencies of children consumers according to the cognitive development stage. For these purposes, a survey was conducted using questionaires. The questionaires consisted of mother's and child's were distributed to children of second and 6th grade and their mothers of 5 elementary schools in Seoul 634 cases were selected for data analysis. Then, these data were analyzed with statistical methods such as Frequency Distribution, Percentile, Mean, One-way Anova, Scheff -Test, T-Test, Pearson's Correlation and Multiple Regression Analysis. From these finding, the follawing suggestions are made. First, to improve information processing competencies of children consumers, children consumers should be offered the consumer information that is suitable to child's cognitive development stage. Second, the consumer education and learning practical discriminatory competencies on TV ads. should be conducted for children consumers and his mothers. Third, children consumers should have the opportunities to practice as a consumer. The last, children consumers in low-income should be offered the specially educational program.

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Comparison of RAPD, AFLP, and EF -1 α Sequences for the Phylogenetic Analysis of Fusarium oxysporum and Its formae speciales in Korea

  • Park, Jae-Min;Kim, Gi-Young;Lee, Song-Jin;Kim, Mun-Ok;Huh, Man-Kyu;Lee, Tae-Ho;Lee, Jae-Dong
    • Mycobiology
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    • v.34 no.2
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    • pp.45-55
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    • 2006
  • Although Fursarium oxysporum causes diseases in economically important plant hosts, identification of F. oxysporum formae speciales has been difficult due to confusing phenotypic classification systems. To resolve these complexity, we evaluated genetic relationship of nine formae speciales of F. oxysporum with random amplified polymorphic DNA (RAPD), amplified fragment length polymorphism (AFLP), and translation elongation factor-l alpha ($EF-1{\alpha}$) gene. In addition, the correlation between mycotoxin content of fusaric acid and isolates based on molecular marker data was evaluated using the modified Mantel's test. According to these result, these fusaric acid-producing strains could not identify clearly, and independent of geographic locations and host specificities. However, in the identification of F. oxysporum formae speciales, especially, AFLP analysis showed a higher discriminatory power than that of a the RAPD and $EF-1{\alpha}$ analyses, all three techniques were able to detect genetic variability among F. oxysporum formae speciales in this study.

Design of Lactic Acid Bacteria Aiming at Probiotic Culture and Molecular Typing for Phyogenetic Identification (Probiotics용 유산균의 Design과 Molecular Typing에 의한 동정법)

  • Yoon, Sung-Sik
    • Journal of Dairy Science and Biotechnology
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    • v.18 no.1
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    • pp.47-60
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    • 2000
  • Over decades of work, the probiotic research has grown rapidly with a number of new cultures, which is claimed a variety of benefit. However, many of the specific effects attributed to the ingestion of probiotics remain convoluted and scientifically unsubstantiated. Accordingly, the scientific community faces a greater challenge and must objectively seek cause and effect relationships for many potential and currently investigated probiotic species. Rational selection and design of probiotics remains an important challenge and will require a solid information about the physiology and genetics of candidate strains relevant to their intestinal roles, functional activities, and interaction of with other resident micro flora. As far as beneficial culture of lactic acid bacteria (LAB) is concerned, simple, cost-effective, and exact identification of candidate strains is of foremost importance among others. Until recently, the relatedness of bacterial isolates has been determined sorely by testing for one or several phenotyphic markers, using methods such as serotyping, phage-typing, biotyping, and so forth. However, there are problems in the use of many of these phenotype-based methods. In contrast, some of newer molecular typing methods involving the analysis of DNA offer many advantages over traditional techniques. These DNA-based methods have the greater discriminatory power than that of phenotypic procedures. This review focuses on the importance and the basis of molecular typing methods along with some considerations on de-sign and selection of probiotic culture for human consumption.

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Green Supply Chain Management Practice of FDI Companies in Vietnam

  • TA, Van Loi;BUI, Huy Nhuong;CANH, Chi Dung;DANG, Thi Dung;DO, Anh Duc
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.10
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    • pp.1025-1034
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    • 2020
  • This paper aims to develop a conceptual framework for Green Supply Chain Management (GSCM) that takes into account the effect of GSCM drivers on implementing GSCM practices in Vietnam FDI companies. This study has considered organizational commitment, social network, and government support as GSCM driver factors and proposed a structural model of the relationships between GSCM drivers and GSCM practices in Vietnam FDI companies. The empirical analysis used data from 192 questionnaires which used a comprehensive, valid, and reliable tool (SPSS 26 and SmartPLS 3.0 software) to evaluate rigorous statistical tests including convergence validity, discriminatory validity, reliability, and Average Variance Extracted (AVE) to analyze and verify the gathered data and develop the hypothesis. The result of path analysis shows that GSCM driver factors constitute a structured system with different degrees of influence on GSCM drivers and GSCM practices. Organizational commitment and government support has a positive relationship with both GSCM drivers and GSCM practices, while social network only has a positive relationship on GSCM drivers. As a result, the testing of the relationship between GSCM drivers and GSCM practices has been verified and supported. The findings of this study can help managers and decision-makers to push the implementation of GSCM practices in FDI companies.

A Study on the Effect of Travel Time and Cost by Means on the Mode and Destination Choice of a Commuter by the Household Income Class - Based on the Utility-Based Accessibility Approach - (통행수단별 소요시간과 비용이 가구소득계층별 통근통행자의 수단 및 목적지 선택에 미치는 영향 분석 - 효용기반 접근도 개념에 근거하여 -)

  • Jang, Seongman
    • Journal of Korea Planning Association
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    • v.54 no.1
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    • pp.52-66
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    • 2019
  • Travel is a factor that stimulates the vitality of the urban and is widely used as an indicator of sustainable growth of the region. In Korea, however, no studies has been made to predict changes in traffic and calculate the accessibility of the region by comprehensively considering the socio-economic conditions of the travelers. The purpose of this study is to classify commuters according to the household income and to analyse the traffic characteristics of each class. The analysis results are aggregated into two. First, the analysis of study found different transport characteristics for different income classes. This is the result that underpins the argument of a previous study that suggested that a discriminatory approach is necessary for each income in determining the accessibility of the region. Second, this study calculated utility values differently for each income class based on the transit time and cost required between each zone. Through these measures, transport characteristics were analyzed by income class using indicators that considered transportation infrastructure, and socio-economic conditions of the travelers. This study is meaningful in that it provided the basis for calculating the accessibility that could take into account the activities of the housing consumers in establishing domestic housing policies.

Does Corporate Sustainability Management Affect Investment Efficiency?

  • Oh, Hyun-Min;Park, Sam-Bock
    • Asia-Pacific Journal of Business
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    • v.12 no.2
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    • pp.1-24
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    • 2021
  • Purpose - We aim to verify whether CSM activities increase investment efficiency, and to verify whether the influence of CSM activities on investment efficiency is discriminatory depending on whether or not they belong to chaebol. Design/methodology/approach - Using 4,701 Korean firm-year observations over the 2011-2017 period, we used multiple regression analysis. CSM is measured by the evaluation score of the Korea Corporate Governance Service (KCGS). Findings - Our study confirms that CSM is a significantly positive relationship with investment efficiency. This shows that, as a result of CSM, the increased earnings quality acts as an incentive to increase investment efficiency. Next, in analysis of a dataset into two groups (a chaebol, non-chaebol), the results show that the relationship between CSM and investment efficiency differs among detailed indicator activities depending on whether or not they belong to chaebol. Research implications or Originality - It is significant that this study focused on and analyzed CSM as a determinant of investment efficiency, and examined the effects of whether or not it belongs to chaebol in the relationship between CSM and investment efficiency. Our results, which suggested that CSM can increase investment efficiency, are expected to provide important implications not only for managers but also for investors and supervisors.

Labor Market Participation among Young College-Educated Women (젊은세대 고학력여성의 노동시장참여)

  • 이미정
    • Korea journal of population studies
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    • v.25 no.2
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    • pp.139-161
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    • 2002
  • In 1987, the Equal Employment Opportunity Law was enacted, which indicated the institutional regulation against gender-discriminatory labor practices. Until the late 1980s, women were forced to quit upon marriage. It had influenced negatively on women status in the labor market. In this paper, 1 try to examine how the institutional change affects young educated women's work behaviors. The change of the education and family effect on work will be examined. For analysis, data from 2002 Women's Work Survey is employed. The results show the followings. Among women of young generation, negative effect of education has disappeared and turned out to be positive among the never married. But, marriage and the family responsibility still influence negatively on young women's participation into the labor market. In making a decision to work, husband's attitude is more important than wife's own. But, among the single, women's own attitude toward work plays an important role. In overall, women of young generation is also influenced by the family responsibility as much as the previous generation. The negative effect of marriage and the family responsibility on women's working is stronger among the college educated women.

Time Series Analysis of the Relationship between Housing Consumer Sentiment and Regional Housing Prices in Seoul (서울시 주택소비심리와 권역별 주택가격의 시계열적 관계분석)

  • Yang, Hye-Seon;Seo, Won-Seok
    • Journal of Cadastre & Land InformatiX
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    • v.50 no.1
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    • pp.125-141
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    • 2020
  • This study investigated the time-series relationship between housing consumer sentiment and housing prices in the five major districts in Seoul and also analyzed the effect of the housing consumer sentiment on housing prices using Granger Causality and VEC (Vector Error Correction) models. To describe the key results, first of all, housing consumer sentiment and regional housing market prices were closely related to each other, and the consumer sentiment strongly affected the change of housing prices. Second, the housing consumer sentiment was confirmed to have a discriminatory effect on the housing prices among the districts in Seoul in the short term. Specifically, the housing price of the east southern district (ESD) was the main reason for the change in housing consumer sentiment in Seoul, and that the resulting impact was transferred to other districts. Third, it was analyzed that regions other than the ESD would increase the housing prices in the long term as the housing consumer sentiment turned positive, but that the ESD would see a steady tone. Fourth, in the case of relative influence by district, housing (apartment) price fluctuation in a district was generally found to be most affected by adjacent or competitive districts. Through these findings, this study confirmed that there is a clear causality between housing consumer sentiment and housing prices in each district of Seoul and that there is a discriminatory influence on housing consumer sentiment among the districts.