• Journal of Yeungnam Medical Science
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• v.39 no.2
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• pp.89-97
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• 2022

More than 2 years after the explosion of the coronavirus disease 2019 (COVID-19) pandemic, extensive efforts have been made to develop safe and efficacious vaccines against infections with severe acute respiratory syndrome coronavirus 2. The pandemic has opened a new era of vaccine development based on next-generation platforms, including messenger RNA (mRNA)-based technologies, and paved the way for the future of mRNA-based therapeutics to provide protection against a wide range of infectious diseases. Multiple vaccines have been developed at an unprecedented pace to protect against COVID-19 worldwide. However, important knowledge gaps remain to be addressed, especially in terms of how vaccines induce immunogenicity and efficacy in those who are elderly. Here, we discuss the various vaccine platforms that have been utilized to combat COVID-19 and emphasize how these platforms can be a powerful tool to react quickly to future pandemics.

• Research in Mathematical Education
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• v.25 no.1
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• pp.65-89
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• 2022

Despite its recognition in the field of mathematics education and mathematics, students' understanding about proof and performance on proof tasks have been far from promising. Research has documented that teachers tend to accept empirical arguments as proofs. In this study, an online survey was administered to examine how Korean secondary mathematic teachers make judgements on mathematical arguments varied along representations. The results indicate that, when asked to judge how convincing to their students the given arguments would be, the teachers tended to consider how likely students understand the given arguments and this surfaces as a controversial matter with the algebraic argument being both most and least convincing for their students. The teachers' judgements on the algebraic argument were shown to have statistically significant difference with respect to convincingness to them, convincingness to their students, and validity as mathematical proof.

• Asia Marketing Journal
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• v.24 no.4
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• pp.161-168
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• 2023

With the increased mobility within nations, relocation has become a frequent and regular occurrence in modern life. However, we know little about how residential mobility affects purchase type. How does residential mobility affect our purchase behavior? This research explores the relationship between residential mobility and preference of purchase type, with psychological processes. The study primed participants with either a high or low mobility mindset to investigate the effect of mobility on consumption style in U.S. and South Korean. The results of the study confirm that the consideration of residential mobility shifts consumers' preferences toward material goods and experiences. In addition, results also indicate that the connection between mobility and purchase type was mediated by autonomy and moderated by cultural factor. Lastly, the theoretical and practical implications are covered.

• International conference on construction engineering and project management
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• 2007.03a
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• pp.346-355
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• 2007

Employability is a critical issue in construction education. Employability is more than students obtaining employment upon graduation. The concept is far more ranging, and should encompass enabling students to acquire the knowledge, personal and professional skills and encouraging attitudes that will support their future development and employment. This paper describes two case studies relating to how the true concept of employability can be incorporated into the construction higher education curriculum. Case study 1 was a collaborative venture with contributions from a higher education provider, employers, students and a professional body (Association of Building Engineers). It outlines the whole process from course inception through to graduation and feedback. Thus it presents a valid model for other higher education providers of construction courses to adapt or adopt. Case study 2 outlines how the opportunity of a degree programme revalidation process was utilized to introduce modules which would enhance students' employability on graduation.

• International journal of advanced smart convergence
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• v.12 no.3
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• pp.32-39
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• 2023

This paper provides a comprehensive overview of UAV classification, tracking, and detection, offering researchers a clear understanding of these fundamental concepts. It elucidates how classification categorizes UAVs based on attributes, how tracking monitors real-time positions, and how detection identifies UAV presence. The interconnectedness of these aspects is highlighted, with detection enhancing tracking and classification aiding in anomaly identification. Moreover, the paper emphasizes the relevance of simulations in the context of drones and UAVs, underscoring their pivotal role in training, testing, and research. By succinctly presenting these core concepts and their practical implications, the paper equips researchers with a solid foundation to comprehend and explore the complexities of UAV operations and the role of simulations in advancing this dynamic field.

• Asia Marketing Journal
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• v.17 no.3
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• pp.33-51
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• 2015

This study investigates which variables most effectively influence the positioning strategy of a brand. In addition, we test the connection between the positioning strategy of the brand and loyalty. Finally, we explore how brand experience effects the relationship between brand position and brand loyalty. To this end, this study employs the street-intercept method to collect data on consumers' perception of home appliances in Japan and conducts structural equation modeling analysis to test our hypotheses. Specifically, we find that assessments of product, service, and image have a significant impact on a brand's position which, in turn, drives brand loyalty. In addition, brand experience seems to moderate the relationship between service and brand positioning effectiveness. We also find that price promotions negatively affect brand loyalty. The research provides a consumer-centered, experiential view of how firms can develop strategies to more effectively position brands and increase loyalty among their customers. These results help both academics and practitioners to better understand how consumers assess a brand's position in the marketplace.

• Korean journal of aerospace and environmental medicine
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• v.29 no.3
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• pp.93-95
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• 2019

Middle-ear barotrauma is a common problem reported by aircrew members and passengers. Studies have shown that 20~50% of passengers report ear complaints during the flight or after landing. Barotitis media is defined as an acute or chronic inflammation caused by a pressure differential between the tympanic cavity and the surrounding atmosphere. The Problems caused by otitis media or sinusitis of aircrew during landing and take-off can be a threat to aviation safety. Therefore, the aviation medical examiner should know about barotitis media of aircrews. In this paper, we aimed to learn what is barotitis media and how much it could affect aircrews. Also, we aimed to evaluate how barotitis media could make an impact on crews during flight, and how to manage these problems.

• International journal of advanced smart convergence
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• v.12 no.2
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• pp.127-134
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• 2023

Existing studies on this topic have focused on the effect of online content quality on consumer attitudes and behavior, with very few illustrating the effect of influencer image on consumer attitudes and behavior. The purpose of this study intents to reveal how influencer image affect consumer behavior. We have developed an image transfer theory-based research model to reveal how influencers transfer their image to endorsed products to influence consumer behavior. The results show that influencer image positively affects satisfaction, which in turn affects the product's cognitive and affective images in the vlog. Moreover, it was found that a product's cognitive image and affective image influence consumer behavior intention. Furthermore, purchase experience exhibits significant differences in its path. Based on these results, the social media-related research theoretical implication will be offered, and managerial implications will be provided for foreign brand promotion strategies

• Journal of Contemporary Eastern Asia
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• v.22 no.1
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• pp.26-48
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• 2023

While corporate social responsibility (CSR) has been considered an important philanthropic support for nonprofits worldwide, little is known about how perceptions of CSR are associated with actual CSR practices that may benefit nonprofit organizations in different institutional contexts. This study applies stakeholder theory to examine how South Korean firms perceive CSR outcomes, and how these perceptions lead to different CSR practices. We constructed a panel dataset using two waves of the Giving Korea survey of CSR and two additional sources. The results indicate that perceived CSR outcomes may play a critical role in CSR practices: 1) the more financial performance is perceived as an outcome, the more will be donated; 2) the more organizational culture is perceived as an outcome, the greater the engagement in employee volunteering; and 3) the more reputation is perceived as an outcome, the more nonprofit organizations are supported. From the findings, we discuss theoretical implications and provide suggestions for nonprofit organizations.

• The Bulletin of The Korean Astronomical Society
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• v.46 no.1
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• pp.32.2-32.2
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• 2021

Radio relics, Mpc-size elongated diffuse radio emissions found at galaxy cluster outskirts, are known as the result of shock acceleration during the cluster merger. Theories have claimed that low Mach number shocks are too inefficient to create the observed properties of radio relics. Alternative scenarios such as fossil cosmic ray electrons (CRes) from AGNs are required to explain the observations. However, how exactly the fossil CRes from AGNs can supply the Mpc-size radio relic is still an open question. In this study, we present our recent uGMRT radio observation results of the merging galaxy cluster Abell 514. We found three remarkable AGN jet tails that may have undergone multiple reorientations and extend nearly 800 kpc. Using multi-frequency data, we have performed spectral analysis along the AGN tails and track how the tails lose or gain energy as they propagate in the intracluster medium. We will discuss whether these AGN jets can provide sufficient seed CRes to radio relics.