This study was a qualitative investigation into the food security and food variety among the rural elderly. For the qualitative data collection, nineteen elderly people who lived in Yangpyeong-gun were interviewed individually. Food security and variety was evaluated based on accessibility and affordability. The participants seemed to have difficulty preparing their own meals and eating with their families or others. The frequency of vegetable intake was found to be high, as vegetables were available through cultivation. However, in terms of diversity, the intake of meat and milk, which are sources of protein and calcium, was found to be significantly low. This has to do with very poor physical accessibility. A lack of nutrition education was identified as the biggest reason for not following dietary therapy despite having a pre-existing disease condition. Therefore, for the elderly in Yangpyeong-gun, it is suggested that a basic nutrition policy for food supply that can increase their actual intake is more essential than education on cooking and nutrients. Moreover, periodic nutrition education or a regular counseling system for dietary therapy through local public health centers may help improve the health of the elderly.

PURPOSES : This study aims to analyze the causes of pedestrian traffic accidents on community roads. METHODS : This study collected variables affecting pedestrian traffic accidents on community roads based on field surveys and analyzed them using negative binomial regression and zero-inflated negative binomial regression models. RESULTS : Model analysis results showed that the negative binomial regression model is more suitable than the zero-inflation negative binomial regression model. Additionally, the segment length (m), pedestrian volume (persons/15 min), traffic volume (numbers/15 min.), the extent of illegal parking, pedestrian-vehicle conflict ratio, and one-way traffic (one: residential, two: commercial) were found to influence pedestrian traffic accidents on community roads. Model fitness indicators, comparing actual values with predicted values, showed an MPB of 1.54, MAD of 2.57, and RMSE of 7.03. CONCLUSIONS : This study quantified the factors contributing to pedestrian traffic accidents on community roads by considering both static and dynamic elements. Instead of uniformly implementing measures, such as pedestrian priority zones and facility improvements on community roads, developing diverse strategies that consider various dynamic factors should be considered.

본 연구의 목적은 청소년의 진로적응력의 잠재프로파일 유형과 사회적 지지인 양육태도, 친구관계, 교사관계의 영향력을 확인하는 것이다. 연구 대상자는 한국청소년정책연구원에서 실시한 「한국아동·청소년패널조사 2018 (KCYPS 2018)」에서 중1코호트의 제4차 조사(2021년)에 해당하는 고등 학생 1학년 응답자 2,265명을 최종 연구 대상자로 선정하였다. 진로적응 력의 잠재프로파일 분류와 예측 변인들의 영향력을 확인하기 위해서 SPSS 26.0과 JAMOVI 2.2.5를 활용하여 잠재프로파일분석과 다항로지스 틱회귀분석을 수행하였다. 연구결과에서는 ‘진로적응 매우미흡집단’, ‘진 로적응 미흡집단’, ‘진로적응 보통집단’, ‘진로적응 우수집단’ 총 4개의 잠재프로파일 집단으로 분류되었다. 또한, 양육태도와 교사관계는 모두 잠재프로파일 분류에 유의한 영향을 미치는 것으로 나타났다. 그러나, 친 구관계는 잠재프로파일 분류에 유의한 영향을 주지 않는 것으로 확인되 었다. 이러한 연구결과는 향후, 청소년들의 진로적응력을 강화할 수 있는 교육제도 수립 및 프로그램 개발에 도움이 될 수 있을 것이다.

PURPOSES : This study investigates the factors affecting extra-long tunnel accidents by integrating data on tunnel geometry, traffic flow, and traffic accidents and derives the underlying implications to mitigate the severity of accidents. METHODS : Two processes centered on three key data points (tunnel geometry, traffic flow, and traffic accidents) were used in this study. The first is to analyze the spatial characteristics of extra-long tunnel traffic accidents and categorize them from multiple perspectives. The other was to investigate the factors affecting extra-long tunnel traffic accidents using the equivalent property-damage-only (EPDO) of individual accidents and the aforementioned data as the dependent and independent variables, respectively, by employing an ordered logistic regression model. RESULTS : Gyeonggi-do, Gyeongsangnam-do, and Gangwon-do are three metropolitan municipalities that have a significant number of extra-long tunnel accidents; Busan and Seoul have the most extra-long tunnel accidents, accounting for 23.2% (422 accidents) and 18.6% (339 accidents) of the 1,821 accidents that occurred from 2007 to 2020, respectively. In addition, approximately 70% of extra-long tunnel traffic accidents occurred along tunnels with lengths of less than 2 km, and Seoul and Busan accounted for over 60% of the top 20 extra-long tunnels with accidents. Most importantly, the Hwangryeong (down) tunnel in Busan experienced the most extra-long tunnel traffic accidents, with 77 accidents occurring during the same period. As a result of the ordered logistic regression modeling with EPDO and multiple independent variables, the significant factors affecting the severity of extra-long tunnel traffic accidents were determined to be road type (freeway, local route, and metropolitan city road), traffic flow (speed), accident time (year, summer, weekend, and afternoon), accident type (rear end), traffic law violations (safe distance violation and center line violation), and offending vehicles (van, sedan, and truck). CONCLUSIONS : Based on these results, the following measures and implications for mitigating the severity of extra-long tunnel traffic accidents must be considered: upgrading the emergency response level of all road types to that of freeways and actively promoting techniques for regulating high-speed vehicles approaching and traversing within extra-long tunnels are necessary. In addition, the emergency response and preparation system should be reinforced, particularly when the damage from extra-long tunnel traffic accidents is more serious, such as during the summer, weekends, and afternoons. Finally, traffic law violations such as safe distance and centerline violations in extra-long tunnels should be prohibited.

초파리를 당뇨병을 연구하는데 사용하는 경우가 많으나 당뇨병이 유전적 요인에 작용하여 다음 세대에 미치 는 영향을 다루고 있는 연구는 적다. 따라서 본 연구에서는 초파리에 고당도의 먹이를 통해 당뇨병을 유발하고, 류신(leucine)의 당뇨병에 대한 치료효과를 확인하고 다음 세대에 미치는 영향을 알아보고자 했다. 본 연구에서 는 Drosophila melanogaster를 초파리 모델에 사용했다. 먹이에 고농도의 설탕, 고농도의 설탕과 류신을 첨가하여 당뇨의 발병과 당뇨병의 치료효과를 확인했다. 당뇨병의 발병을 확인하기 위해 초파리의 체내의 포도당을 측정 하여 대조군에 비해서 고농도의 설탕을 섭취한 경우에 포도당의 농도는 증가했고, 류신을 섭취한 경우에는 포도 당이 대조군에 비해서도 급격히 떨어지는 것을 확인했다. 고농도의 설탕이 포함된 먹이 조건을 유지하고 교배를 통해 자손을 얻고자 하였다. 그 결과, 고농도의 설탕을 섭취한 경우 자손의 몸의 크기가 0.1mm 정도 감소하고 무게 또한 감소했다. 그러나 고농도의 설탕과 류신을 섭취한 경우 자손을 얻지 못했다. 당뇨병을 유발시킨 초파리 를 이용해 류신과 운동의 효과를 동시에 확인했다. 당뇨병이 유발된 경우 운동만으로는 포도당의 감소에 영향을 주지 못하였으나, 류신 운동을 병행한 경우에는 포도당이 감소했고 수컷 초파리에서 잘 관찰되었다. 운동과 류신 섭취를 병행하는 실험에서는 당뇨병을 유발한 초파리의 자손을 사용했기 때문에 크기는 당뇨병을 유발하지 않은 것보다 작았다. 따라서 초파리의 당뇨병 모델을 통해서 당뇨병이 유전적으로 전달되며 Leucine에 의한 치료 는 성충에 수행되는 것이 효과적임을 알 수 있었다.

Honeybee winter failure and mortality are a big issue in korea, especially from 2021 to 2023. Traditionally, honeybee winter failure has been estimated as Approximately 10-20%. However, for last 2 years, we had more than 35% of winter failure which impacted not only beekeeping sectors but also agriculture and the whole society as well. Primary factor was ascribed as honeybee mite resistance development to conventional acaricudes. Coinhabitance of tropilaelaps mite in honeybee complicated the mite problem. Further threat of vespa hornets especially in fall season would exerbate the wintering condition. More important is that the more frequent abnormal weather condition in fall and winter season could affected the winter bee production and maintenance of honeybee overwintering physiology. On these situation, we also observed some diseases were associated to the death of bees.

Honeybee winter failure and mortality are a big issue in korea, especially from 2021 to 2023. Traditionally, honeybee winter failure has been estimated as Approximately 10-20%. However, for last 2 years, we had more than 35% of winter failure which impacted not only beekeeping sectors but also agriculture and the whole society as well. Primary factor was ascribed as honeybee mite resistance development to conventional acaricudes. Coinhabitance of tropilaelaps mite in honeybee complicated the mite problem. Further threat of vespa hornets especially in fall season would exerbate the wintering condition. More important is that the more frequent abnormal weather condition in fall and winter season could affected the winter bee production and maintenance of honeybee overwintering physiology. On these situation, we also observed some diseases were associated to the death of bees.

This study (1) explored spatio-temporal population distribution patterns in Jeonju by using emerging hot spot analysis and (2) identified the influential factors to determine the spatio-temporal patterns by using multinomial logit model. The major findings are as follows. First, the results of emerging hot spot analysis indicated that the 100*100m grid in the urban area of Jeonju was found to have a category of hot spots, whereas most of the cold spot series was concentrated in the outskirts of the city. Also, new towns such as Jeonju Eco City, Jeonbuk Innovation City, and Hyocheon District were persistent or intensifying hot spots, Third, the results of multinomial logit model revealed that the factors influencing deterrmining the spatio-temporal patterns were accessibility to schools, hospitals, parks, and walfare services. This study offered a deeper understanding of urbanization and regional changes in Jeonju, and important information for urban planning.

Companies are paying attention to project governance to realize their goal strategies, project success, and project value in a rapid and complex environment due to the development of information technology. This study aims to explore project governance and factors from literature review and practice guides related to project governance and empirically analyze the impact of project governance factors on IT project objective performance. The survey was conducted on project managers, project team members, and project management members with experience in carrying out business IT projects within two years at companies in various industries in Korea. The main conclusion is as follows. Among the project governance factors, disclosure and reporting that uses and reports using appropriate and reliable information about projects related to decision-making activities positively impact the achievement of IT project objectives: business success and stakeholder satisfaction. Among the project governance factors, project sponsorship, a role that effectively connects management and projects, and a project management framework that provides tools, procedures, resources, and techniques for projects positively impact IT project objective performance. This study is of academic and practical significance in that it identifies the definition and factors of project governance through companies in various industries in Korea and the positive impact of project governance factors on IT project objective performance.

In order to enhance competitiveness in the industry, financial companies are building a high level of customer satisfaction and repurchase intention by further strengthening not only the technical quality of the platform business but also the customer-oriented service quality. Theoretically, it is time for a theoretical review of whether the expansion of service quality using platform business in the financial industry is directly linked to the performance of financial companies, such as satisfaction and repurchase intention of existing customers. Based on the rapid growth of mobile and the main activities of financial platform companies above, This study attempted to test a significant impact on customer satisfaction and reuse intention on information services and system services, which are service quality of mobile financial platforms. Even if a number of financial companies compete with each other, they could survive by dividing the market, In the digital environment, customers have free access, so the winner can monopolize the market. It is an environment in which customers can move to platform companies that provide better services. The contents presented through the results in this study will be able to be used strategically in terms of the implementation and operation of the financial platform. In addition, it served as an opportunity to find independent variables that affect customer satisfaction and reuse intention, which are financial platform service quality, and suggested the possibility of continuous development of the platform in the future. In summary, the service quality of financial platforms can further expand users by emphasizing user visibility in terms of information services and utilizing user-centered financial platforms that increase customer satisfaction and reliability by strengthening the responsiveness and ease of system services. This study is of important value and is believed to have laid an important foundation for future research.

This study investigates how native Korean speakers, who moved from Kyungsang province to Seoul, acquire /w/ retainment in Seoul Korean (SK). The specific objective is to examine how mobile speakers adopt the SK-like /w/ retainment and evaluate how linguistic and non-linguistic factors influence this acquisition. Furthermore, the study aims to establish whether having explicit awareness of the SK-like /w/ retainment is a prerequisite for acquiring it. The overall results suggest that most speakers have successfully adopted the SK-like /w/ retention, but there is noticeable diversity among speakers in terms of the extent to which they retain /w/. This variability can be linked to linguistic and non-linguistic factors, such as where /w/ appears in speech and individual attitudes towards SK. This research sheds light on the acquisition of /w/ retainment among native Korean speakers who have relocated from Kyungsang province to Seoul, highlighting the impact of linguistic and non-linguistic factors. It underscores the role of explicit awareness and reveals significant interspeaker variation in the adoption of SK-like /w/ retainment, contributing to our understanding of dialect acquisition dynamics.

The air transport industry is experiencing unprecedented fluctuations in aviation demand through the Covid-19 pandemic, and is more focused than ever on maintaining and generating business profitability. During the pandemic, demand for air cargo has soared, and the conversion business from passenger aircrafts to freighters(P2F) is drawing attention as a new business in the aviation maintenance industry. This study derives important factors to be considered in order to successfully carry out the P2F project through a wide range of cases and related literature, and analyzes the relative importance of each factor using the analytic hierarchy process. Through a survey of 33 aviation maintenance experts with more than 20 years of field experience, the importance of main factors and their sub factors was determined and implications were drawn. As a primary result, in order to succeed in the P2F project, the main factors were identified in the order of skill, finance, and location. The most important sub factors for each main factors were identified in order of securing airframe modification skill, securing infrastructure construction cost, and creating P2F business complex and district. The quantified success factors suggested the critical direction for the successful development of Korea's P2F business, and presented viable and specific business strategies and implementation plans for each factors.

As platforms become primary decision making tools, platforms for decision have been introduced to improve quality of decision results. Because, decision platforms applied augmented decision-making process which uses experiences and feedback of users. This process creates a variety of alternatives tailored for users’ abilities and characteristics. However, platform users choose alternatives before considering significant quality factors based on securing decision quality. In real world, platform managers use an algorithm that distorts appropriate alternatives for their commercial benefits. For improving quality of decision-making, preceding researches approach trying to increase rational decision -making ability based on experiences and feedback. In order to overcome bounded rationality, users interact with the machine to approach the optional situation. Differentiated from previous studies, our study focused more on characteristics of users while they use decision platforms. This study investigated the impact of quality factors on decision-making using platforms, the dimensions of systematic factors and user characteristics. Systematic factors such as platform reliability, data quality, and user characteristics such as user abilities and biases were selected, and measuring variables which trust, satisfaction, and loyalty of decision platforms were selected. Based on these quality factors, a structural equation research model was created. A survey was conducted with 391 participants using a 7-point Likert scale. The hypothesis that quality factors affect trust was proved to be valid through path analysis of the structural equation model. The key findings indicate that platform reliability, data quality, user abilities, and biases affect the trust, satisfaction and loyalty. Among the quality factors, group bias of users affects significantly trust of decision platforms. We suggest that quality factors of decision platform consist of experience-based and feedback-based decision-making with the platform's network effect. Through this study, the theories of decision-making are empirically tested and the academic scope of platform-based decision-making has been further developed.

This study identifies the commercialization success factors that can be an important indicator for the transfer and commercialization of national R&D results in the agricultural sector. Unlike other industries, the agricultural sector has a non-systematically scaled and processed industrial structure, and R&D is led by government rather than the private sector. Although the quantitative performance of national agricultural R&D, especially the number of patents and publications, has increased rapidly with the quantitative expansion of the government R&D budget, the technology commercialization of the results of agricultural R&D has been accompanied by difficulties for SMEs. Therefore, this study summarized the success factors for commercialization of state-owned technologies presented in previous studies, and based on them, analysed the success factors for commercialization specific to the agricultural sector. It also conducted a questionnaire survey using Delphi and focus group interviews (FGI) with experts from academia, research and industry, and a survey of agricultural companies to derive success factors for commercialization in the agricultural sector using logistic regression analysis. As a result, five indicators with positive correlation and three indicators with negative correlation within technology characteristics, suppliers, adopters, policy and market factors were finally derived as key factors for agricultural commercialization. In the future, it is expected that independent factor analysis of the food and seed sectors, which have independent industry characteristics from the agricultural sector, will be needed.

목적 : 본 연구는 노인들의 인지기능과 삶의 만족도간의 관계에서 노인구강건강요인의 매개효과를 분석하 기 위해 수행되었다. 연구방법 : 8차 고령화연구패널조사(2020년)에 수집된 60세 이상의 중고령자 6,169명을 대상으로 분석하 였다. 노인구강건강 요인은 노인구강건강평가지수(Geriatric Oral Health Assessment Index; GOHAI)의 기능적 차원 요인, 심리사회적 차원 요인, 통증 및 불편함 요인으로 세분화하였고 각 요인의 매개효과를 Mplus 8.4를 활용하여 경로분석을 수행하였다. 결과 : 6,169명의 평균 연령은 70.77세였다. 인지기능과 삶의 만족도 사이에서 노인구강건강 요인 중 구강건 강관련 기능적 차원 요인(β = 0.207, 95% Confidence Interval; CI = 0.169, 0.207)이 23%로 가장 큰 부분매개효과를 나타났다. 심리사회적 차원 요인은 22%(β = 0.202, 95% CI = 0.171, 0.236), 통증 및 불편함 요인은 16%(β = 0.146, 95% CI = 0.119, 0.175)로 기술한 순으로 부분매개효과를 나타냈다. 결론 : 인지기능과 삶의 만족도 사이에 구강건강 관련 기능적 차원 요인, 심리사회적 차원 요인, 통증 및 불편함 요인이 미치는 영향력을 확인하였다. 따라서 노인의 인지수준을 고려하고, 삶의 만족도에 영향을 미치는 구강건강 요인을 세분화하여 파악한 결과를 통해 개개인의 맞춤형 재활치료 접근 전략을 세우고 노인의 삶의 만족도를 높일 필요성을 제시하고자 한다.

본 연구는 와첩 구성경관에 관한 이론정립과 와첩 관련 경관의 설계와 연출 근거를 제공할 목적으로 시도되었다. 이를 위해 중국 하남성 신양시 향촌경관을 사례로 SBE-SD법을 결합하여 와첩 경관에 대 한 경관미를 평가하고 선호요인을 규명한 것이다. 연구결과 와첩 구성경관에 대한 반응은 대부분 인 구통계학적 특성에 관계없이 일관적인 심미성을 보였지만 거주지 속성에는 차이를 보였다. 예술과 문화가치는 와첩 구성경관의 경관미에 긍정적인 영향을 주는 반면에 평면구성 및 색채구성의 복잡도 는 오히려 경관미에 부정적인 영향을 미쳤다. 다중회귀분석을 통한 와첩 구성경관에 대한 선호요인 을 추적한 결과 지역의 장소성 구현이 와첩 경관 연출의 우선적 고려사항임이 밝혀졌다. 또한 주변 경 관요소에 부합되는 척도 구성은 와첩 구성경관에 대한 결정적 선호요인으로 작용하였다. 그리고 와 첩 구성경관이 대부분 근경의 경관요소로 작용하는 것과 관련하여 기와(瓦) 자체의 질감은 긍정적 선 호요인으로 드러났으나 색채의 풍부도나 다양한 색상의 경관 연출은 경관미에 부정적 영향을 미치는 것으로 확인되었다.