• The Plant Pathology Journal
• /
• v.37 no.4
• /
• pp.315-328
• /
• 2021

Fusarium and Rhizoctonia genera are important pathogens of many field crops worldwide. They are constantly evolving and expanding their host range. Selecting resistant cultivars is an effective strategy to break their infection cycles. To this end, we screened a collection of Medicago truncatula accessions against Fusarium oxysporum, Fusarium solani, and Rhizoctonia solani strains isolated from different plant species. Despite the small collection, a biodiversity in the disease response of M. truncatula accessions ranging from resistant phenotypes to highly susceptible ones was observed. A17 showed relative resistance to all fungal strains with the lowest disease incidence and ratings while TN1.11 was among the susceptible accessions. As an initiation of the characterization of resistance mechanisms, the antioxidant enzymes' activities, at the early stages of infections, were compared between these contrasting accessions. Our results showed an increment of the antioxidant activities within A17 plants in leaves and roots. We also analyzed the responses of a population of recombinant inbred lines derived from the crossing of A17 and TN1.11 to the infection with the same fungal strains. The broad-sense heritability of measured traits ranged from 0.87 to 0.95, from 0.72 to 0.96, and from 0.14 to 0.85 under control, F. oxysporum, and R. solani conditions, respectively. This high estimated heritability underlines the importance of further molecular analysis of the observed resistance to identify selection markers that could be incorporated into a breeding program and thus improving soil-borne pathogens resistance in crops.

• Journal of the Korea Convergence Society
• /
• v.10 no.1
• /
• pp.187-195
• /
• 2019

There is a growing emphasis on objective and quantified performance measurement methodologies for the interactions that occur within modern companies. This is due to the importance of establishing and practicing future-oriented strategies by estimating the present value of the company and the current energy status through objective evaluation of the company. Therefore, the selection of KPI as a performance index using BSC (Balance Scorecard), which is a recent objective performance measurement methodology, has become very important. Although many studies on existing KPIs have been made in various industries, KPI studies on SI companies have been insufficient. This study focuses on finding KPIs applicable to SI companies. The study on the KPI design system according to general strategy of SI companies and the development of methodology and evaluation index according to index development for each group were carried out and the weighting methodology according to each evaluation index was presented.

• Journal of Practical Engineering Education
• /
• v.11 no.1
• /
• pp.133-141
• /
• 2019

The purpose of this study was to analyze the current status and effects of health-related intervention for children and adolescents in multicultural families and to provide a evidence of nursing educational intervention. The Scoping strategy was applied, the 12 published literature were analyzed according to the selection criterion and exclusion criterion among 604 published literature retrieved through 8 electronic databases. The results of this present study showed that most research was conducted on elementary school students, and types of intervention programs were art therapy, music activities, psychotherapy, and physical activities. This study suggests the need for intervention to prevent and promote health problems among children and adolescents in multicultural families, and the necessity of preparing intervention strategies including physical, psychological, and developmental areas.

• The Korean Journal of Archival Studies
• /
• no.47
• /
• pp.161-193
• /
• 2016

Cheongnamdae is public building which was built in 1983. Cheongnamda had been used for the exclusive villa for Presidents of Korea from then until 2003 when it opened to the public. Because of public building, public records would have been produced during the construction process. The records of public institutions are generally managed and destroyed according to retention schedule. Considering the retention schedule of those days, it is more likely that most of records which would show the accountability about building Cheongnamdae do not remain. But regardless of retention period, those records may be left, so we need to confirm existence of the records. The purpose of this study is to examine whether the records related to the construction remain or not. For the examination, I make a list of the records which are supposed to be created during the construction process. Then I identify whether those records are preserved in records-creating institutions or national archives or not. And I suggest the selection strategy of the records of existing public buildings and show the direction for managing the records of public buildings to be built.

• The Korean Journal of Franchise Management
• /
• v.11 no.2
• /
• pp.17-22
• /
• 2020

Purpose: As consumers have difficulty in brand choice due to excessive information, using brand popularity as an advertising cue (e.g., Sales No. 1, Hit Product) has been getting more attention as an effective curation strategy for decreasing consumers' cognitive efforts. Accordingly, recent studies empirically demonstrate that consumers tend to prefer and choose a brand with a popularity cue and offer a useful information regarding how to use a popularity cue in marketing communication. However, extant research has mainly focused on investigating the impact of "brand popularity in a domestic market" on consumer behaviors. Thus, little is known about the effect of "brand popularity in a foreign market" on local consumers' decision-making process. Given that domestic consumers tend to purchase imported products from overseas countries, it can be meaningful information for global companies. Therefore, this research derives and tests the five hypotheses to examine how local consumers respond to brand popularity in a foreign market as an advertising cue. Specifically, it tests the three hypotheses regarding the direct and indirect effects of brand popularity in a foreign market on risk perception and purchase intention. Then, it tests two additional hypotheses about moderating effects of psychic distance on the relationship between brand popularity and risk perception as well as on the relationship between brand popularity and purchase intention. Seventy participants are exposed to an advertisement for an Indian cosmetic brand using a popularity cue in Indian market and answer the questions about brand evaluation. For data analysis, regression analysis is employed. The findings of this research show that perceived brand popularity lowers local consumers' perceived risk with a foreign brand. However, perceived brand popularity does not have a direct impact on purchase intention while it has an indirect effect through perceived risk. Meanwhile, psychic distance moderates the effect of perceived brand popularity on perceived risk level, but it has no impact on the relationship between brand popularity and purchase intention. This research is one of the first studies that demonstrate the positive impact of brand popularity in a foreign market on a local consumer's purchase decision, and it shows the effect can be moderated by psychic distance.

• Journal of Digital Convergence
• /
• v.19 no.2
• /
• pp.117-133
• /
• 2021

This study aimed to identify its research trends using social network analysis(SNA). The results of the analysis showed that, for degree centrality, Busan Port(0.223) was the keyword that had the highest centrality, followed by DEA(0.060), AHP(0.056), and container terminal and port competitiveness(0.049). Busan Port(0.245) also had the highest betweenness centrality, followed by DEA(0.048), container terminal(0.044), AHP(0.039), and Busan New Port(0.032). The trend analysis inferred that efficiency analysis(DEA), strategy selection, and competition analysis(AHP) were the keywords with a high centrality for Busan Port to gain a competitive edge with global ports. However, research on the Fourth Industrial Revolution, which is emerging as a key issue, was insufficient. In the future, research using social data, such as mass media and social networks, is necessary.

• Journal of Digital Convergence
• /
• v.20 no.4
• /
• pp.63-72
• /
• 2022

The interest in online education has increased due to the spread of COVID-19. Especially, in the online environment, the importance of scaffolding, which refers to the help and support provided by instructors or peer learners, is being emphasized. This study aimed to review the antecedents of online scaffolding at the university of Korea through the method of systematic review. For this purpose, we collected 578 studies conducted from 2010 to 2021 and selected 7 studies according to the criteria of selection and exclusion. As a result, we found general features, types, and effects of online scaffolding at the university of Korea. Based on these results, we discussed suggestions and implications for a follow-up study. We hope many empirical kinds of research will be conducted about online scaffolding at the university.

• Journal of the Korean BIBLIA Society for library and Information Science
• /
• v.32 no.4
• /
• pp.213-229
• /
• 2021

The purpose of this study is to explore the establishment and administrative strategies for shared repositories for academic libraries in Korea, using the US ReCAP (Research Collections and Preservation Consortium) Project as a case study. The US ReCAP Project was a collaboration between the New York Public Library and the university libraries of Columbia University, Harvard University, and Princeton University. In-depth interviews were conducted with librarians and administrators in charge of the ReCAP Project to understand the original vision of the project, as well as how the strategy and approach evolved over the years. The analysis results revealed that shared repositories for libraries have evolved into shared collections enabling shared use. But shared repositories require a central management system to be successful in the long-term. Additionally, findings showed that the shared repository filled more quickly than anticipated. This in turn required collaborative planning on shared collection development and selection policies to determine which materials to send to the shared repository.

• The Journal of Advanced Prosthodontics
• /
• v.14 no.5
• /
• pp.294-304
• /
• 2022

PURPOSE. The purpose of this study was to evaluate the influence of different palatal vault configurations on the accuracy and scan speed of intraoral scans (IO) of completely edentulous arches. MATERIALS AND METHODS. Three different virtual models of a completely edentulous maxillary arch with different palatal vault heights- Cl I moderate (U-shaped), Cl II deep (steep) and Cl III shallow (flat)-were digitally designed using CAD software (Meshmixer; Autodesk, USA) and 3D-printed using SLA-based 3D-printer (XFAB; DWS, Italy) (n = 30; 10 specimens per group). Each model was scanned using intraoral scanner (Trios 3; 3Shape^TM, Denmark). Scanning time was recorded for all samples. Scanning accuracy (trueness and precision) were evaluated using digital subtraction technique using Geomagic Control X v2020 (Geomagic; 3DSystems, USA). One-way analysis of variance (ANOVA) test was used to detect differences in scanning time, trueness and precision among the test groups. Statistical significance was set at α = .05. RESULTS. The scan process could not be completed for Class II group and manufacturer's recommended technique had to be modified. ANOVA revealed no statistically significant difference in trueness and precision values among the test groups (P=.959 and P=.658, respectively). Deep palatal vault (Cl II) showed significantly longer scan time compared to Cl I and III. CONCLUSION. The selection of scan protocol in complex cases such as deep palatal vault is of utmost importance. The modified, adopted longer path scan protocol of deep vault cases resulted in increased scan time when compared to the other two groups.

• Journal of Preventive Medicine and Public Health
• /
• v.55 no.1
• /
• pp.1-9
• /
• 2022

An index that evaluates the health level of a population group considering both death and loss of function due to disease is called a summary measure of population health (SMPH). SMPHs are broadly divided into life year indices and life expectancy indices, the latter of which comprise healthy life expectancy (HLE). HLE is included as a policy target in various national and regional level healthcare plans, and the term "HLE" is commonly used in academia and by the public. However, the overall level of understanding of HLE-such as the precise definition of HLE and methods of calculating HLE-still seems to be low. As discussed in this study, the types of HLE are classified into disability-free life expectancy, disease-free life expectancy, quality-adjusted life expectancy, self-rated HLE, and disability-adjusted life expectancy. Their characteristics are examined to facilitate a correct understanding and appropriate utilization of HLE. In addition, the Sullivan method, as a representative method for calculating HLE, is presented in detail, and major issues in the process of calculating HLE, such as selection of the population group and age group, estimation of death probability, calculation of life years, and incorporation of health weights, are reviewed. This study will help researchers to select an appropriate HLE type and evaluate the validity of HLE research results, and it is expected to contribute to the vitalization of HLE research.