• The Journal of The Korea Institute of Intelligent Transport Systems
• /
• v.20 no.4
• /
• pp.1-12
• /
• 2021

Emergence of the COVID 19 pandemic has resulted in a sharp increase in the number of two-wheeler vehicular traffic accidents, prompting the introduction of numerous efforts for their prevention. This study applied XGBoost to determine the factors that affect severity of two-wheeled vehicular traffic accidents, by examining data collected over the past 10 years and analyzing the influence of each factor. Among the total factors assessed, variables affecting the severity of traffic accidents were overwhelmingly high in cases of signal violations, followed by the age group of drivers (60s or older), factors pertaining only to the car, and cases of centerline infringement. Based on the research results, a reasonable legal reform plan was proposed to prevent serious traffic accidents and strengthen safety management of two-wheeled vehicles. Based on the research results, we propose a reasonable legal reform plan to prevent serious traffic accidents and strengthen safety management of two-wheeled vehicles.

• International Journal of Computer Science & Network Security
• /
• v.21 no.5
• /
• pp.151-159
• /
• 2021

This article addresses the issue of finding optimal solutions using the information technologies of accounting and analysis in modern companies. The aim of the study is to reveal available information technologies for the needs of small, medium and large businesses operating in modern conditions. This goal is achieved by using systematization, comparison, and analysis of information, obtained under the survey and open management statistics. For the first time, the paper systematizes up-to-date information of 2021 about the most popular programs, online services, platforms and cloud services that are used to improve accounting and analytical processes in enterprises of various sizes. The main global trends in software development in terms of COVID-19 pandemic have been identified. In particular, the study defines the countries that occupy the leading positions in the informatization of business processes. An attempt was made to classify information technologies by their use by various volume of businesses. The analysis of research results of the Internet search query frequency regarding the use of information technologies enabled to determine the most popular software products worldwide. The peculiarities of information technologies, their advantages and disadvantages were examined and the common and distinctive features were compared. It was determined that for the new enterprises to implement information technologies, it is necessary to conduct a step-by-step study of all available software products. The software evaluation algorithm was described to help select the optimal software for the specific business processes. The paper also describes the way to solve the problem of using accounting and analysis software for the businesses of a specific kind of activity.

• International Journal of Computer Science & Network Security
• /
• v.22 no.1
• /
• pp.347-357
• /
• 2022

The aim of the study is to model demand for full-time Bachelor's Degree Programs in Hospitality and Catering, taking into account the influence of the main determinants in the COVID-19 pandemic. The research used methods of algorithms, correlation and regression analysis, ANOVA, graphical method, deduction and induction, abstraction, etc. It was found that the demand for full-time Bachelor's Degree Programs in Hospitality and Catering is price elastic. It has been argued that it is useful to consider both price and non-price determinants when modelling demand for full-time Bachelor's Degree Programs in Hospitality and Catering. It is proved that the main determinants of demand for full-time Bachelor's Degree Programs in Hospitality and Catering are full-time tuition fee, maximum government order, license volume and Consolidated Ranking of a higher education institution (HEI). In this case, the applicant decides to enrol in a full-time Bachelor's Degree Program in Hospitality and Catering, guided by the optimal ratio of tuition fee and the prestige of the HEI.

• Journal of Digital Convergence
• /
• v.20 no.4
• /
• pp.679-688
• /
• 2022

This paper focuses on the usability of smart healthcare based on the development of Information and Communication Technology(ICT), briefly introduces concepts and the current status related to smart healthcare, and discusses strategies and future tasks in the field of mental health welfare in the COVID-19 era. This paper first introduces the smart healthcare programs of the National Mental Health Center and the Seoul Mental Health Welfare Center. Second, we introduce various smart healthcare programs used in Germany, China, the U.S., and Australia, review the actual examples, and examine both public and private responsiveness. Finally, we examine the possibility of using smart healthcare in the mental health social work system in South Korea and examine future tasks and implications. This paper would contribute to the growth of world-class mental health social work services.

• Journal of the Korean Society of Industry Convergence
• /
• v.25 no.2_2
• /
• pp.219-232
• /
• 2022

The aim of this study is to provide the dynamic convergence index that reflected the inherent characteristics of the convergence phenomenon and utilized the nationally-funded R&D projects data, thereby suggesting useful information about the direction of the national convergence R&D strategy. The dynamic convergence index that we suggested was made of two indicators: persistency and diversity. From a time-series perspective, the persistency index, which measures the degree of continuous convergence of multidisciplinary nationally-funded R&D projects, and the diversity index, which measures the degree of binding with heterogeneous research areas. We conducted the empirical experiment with 151,248 convergence R&D projects during the 2015~2021 time period. The results showed that convergence R&D projects in both public health and life sciences appeared the highest degree of persistency. It was presumed that the degree of persistency has increased again due to the COVID-19 pandemic. Meanwhile, the degree of diversity has risen with combining with disciplinary such as materials, chemical engineering, and brain science areas to solve social problems including mental health, depression, and aging. This study not only provides implications for improving the concept and definition of dynamic convergence in terms of persistency and diversity for national convergence R&D strategy but also presented dynamic convergence index and analysis methods that can be practically applied for directing public R&D programs.

• Journal of Korean Academy of Nursing
• /
• v.51 no.6
• /
• pp.689-702
• /
• 2021

Purpose: This study aimed to develop a situation-specific theory to explain nurses' experiences of the COVID-19 crisis. Methods: The participants were 16 hospital nurses who experienced the COVID-19 crisis. Data were collected through in-depth individual interviews from September 2, 2020 to January 20, 2021. Transcribed interview contents were analyzed using Corbin and Strauss's grounded theory method. Results: A total of 38 concepts and 13 categories were identified through an open coding process. The core category found was becoming a pioneering nurse who turns crises into opportunities. The causal conditions were the chaos of being exposed defenselessly to an unexpected pandemic, fear caused by a nursing care field reminiscent of a battlefield, and moral distress from failing to protect patients' human dignity. The contextual conditions were feeling like the scapegoat of the hospital organization, increasing uncertainty due to the unpredictable state of COVID-19, and relative deprivation due to inappropriate treatment. The central phenomenon was suffering alone while experiencing the dedication of the COVID-19 hero image. The action/interactional strategy were efforts to find a breakthrough and getting the nurse's mind right, and the intervening conditions were gratitude for those who care for broken hearts and getting used to myself with repetitive work. The Consequences were becoming an independent nurse and frustration with the unchanging reality. Conclusion: This study provides the foundation for the nurse's situation-specific theory of the COVID-19 crisis by defining the crisis perceived by nurses who cared for COVID-19 patients and suggesting types of coping with the crisis.

• The Journal of Korean Academic Society of Nursing Education
• /
• v.28 no.3
• /
• pp.284-295
• /
• 2022

Purpose: This study aimed to describe Coronavirus disease 2019 (COVID-19)-related knowledge, health beliefs, anxiety levels, and preventive behaviors among nursing students and to identify factors that influence their preventive behaviors. Methods: A descriptive survey was conducted, targeting a total of 192 nursing students from March 4, 2021 to March 25, 2021. A structured questionnaire was used to identify nursing students' knowledge, health beliefs, anxiety, and preventive health behavior regarding COVID-19. Data were analyzed using descriptive statistics, a t-test, analysis of variance, Pearson's correlation coefficients, and multiple regression. Results: The nursing students' knowledge level was 15.08±1.70 out of 5, and their health belief level was 3.72±0.32 out of 5. These scores were considered high. Their anxiety score was 3.29±3.84 and considered very low. COVID-19 preventive behaviors had a positive correlation with benefits (r=.29, p<.001) and cues to action (r=.28, p<.001). Factors influencing COVID-19 preventive behaviors by multiple regression were identified as health beliefs and living arrangements (F=8.95, p<.001, Adjusted R²=14.3%). Conclusion: The findings suggest that health beliefs and living arrangements could be important factors affecting preventive health behavior in nursing college students during the COVID-19 pandemic. This study highlights the need for appropriate education and widespread awareness campaigns aimed at potential health care professionals about the prevention of new emerging diseases.

• Journal of Korea Port Economic Association
• /
• v.38 no.1
• /
• pp.15-29
• /
• 2022

The Korean logistics industry is in a double challenges to train logistics professional in terms of quantity and quality. The study aims to derive implications for the logistics professional training policy and present the capabilities and skills of logistics manpower necessary in the Industry 4.0. To this end, the supply and demand status of logistics personnel was examined through a full survey of logistics curriculum of domestic universities, case analysis of successful overseas logistics education and training programs was attempted, and the skills and capabilities for logistics professional were comprehensively presented through in-depth literature research. As a policy recommendations for future training and education of logistics professional following policies are suggested; necessity of national standard logistics competency map and integrated platform for national logistics capabilities/skills development, creation of industry-university co-education/training ecosystem and education programs for new logistics professional in response to digital transformation and COVID-19 pandemic.

• Journal of People, Plants, and Environment
• /
• v.24 no.5
• /
• pp.451-460
• /
• 2021

Background and objective: The prolonged COVID-19 pandemic has had significant impacts on mental health, which has emerged as a major public health issue around the world. This study aimed to analyze trends and network structure of 'grow-your-own (GYO)' through Instagram, one of the most influential social media platforms, to encourage and sustain home gardening activities for promotion of emotional support and physical health. Methods: A total of 6,388 posts including keyword hashtags '#gyo' and '#growyourown' on Instagram from June 13, 2020 to April 13, 2021 were collected. Word embedding was performed using Word2Vec library, and 7 clusters were identified with K-means clustering: GYO, garden and gardening, allotment, kitchen garden, sustainability, urban gardening, etc. Moreover, we conducted social network analysis to determine the centrality of related words and visualized the results using Gephi 0.9.2. Results: The analysis showed that various combinations of words, such as #growourrownfood, #growourrownveggies, and #growwhatyoueat revealed preference and interest of users in GYO, and appeared to encourage their activities on Instagram. In particular, #gardeningtips, #greenfingers, #goodlife, #gardeninglife, #gardensofinstagram were found to express positive emotions and pride as a gardener by sharing their daily gardening lives. Users were participating in urban gardening through #allotment, #raisedbeds, #kitchengarden and we could identify trends toward self-sufficiency and sustainable living. Conclusion: Based on these findings, it is expected that the trend data of GYO, which is a form of urban gardening, can be used as the basic data to establish urban gardening plans considering each characteristic, such as the emotions and identity of participants as well as their dispositions.

• Journal of the Korea Institute of Information Security & Cryptology
• /
• v.31 no.6
• /
• pp.1181-1191
• /
• 2021

The pandemic has rapidly developed a non-face-to-face environment. However, the sudden transition to a non-face-to-face environment has led to new security issues in various areas. One of the new security issues is the security threat of insiders, and the zero trust security model is drawing attention again as a technology to defend against it.. Software Defined Perimeter (SDP) technology consists of various security factors, of which device validation is a technology that can realize zerotrust by monitoring insider usage behavior. But the current SDP specification does not provide a technology that can perform device validation.. Therefore, this paper proposes a device validation technology using SVDD-based abnormal behavior detection technology through user behavior monitoring in an SDP environment and presents a way to perform the device validation technology in the SDP environment by conducting performance evaluation.