The study aims to provide an academic basis for the preservation and restoration of abandoned paddy wetland and the enhancement of its carbon accumulation function. First, the temporal change of the wetlands was analysed, and a typological classification system for wetlands was attempted with the goal of carbon reduction. The types of wetland were classified based on three variables: hydrological environment, vegetation, and carbon accumulation, with a special attention on the function of carbon accumulation. The types of abandoned paddy wetlands were classified into 12 categories based on hydrologic variables- either high or low levels of water inflow potential-, vegetation variables with either dominance of aquatic plants or terrestrial plants, and three carbon accumulation variables including organic matter production, soil organic carbon accumulation, and decomposition. It was found that the development period of abandoned paddy analyzed with aerial photographs provided by the National Geographic Information Institute happened between 2010 and 2015. In the case of the wetland in Daejeon 1 (DJMN01) farming stopped by 1990 and it appeared to be a similar structure to natural wetlands after 2010 . Over the past 40 years the abandoned paddy wetland changed to a high proportion of forests and agricultural lands. As time went by, such forests and agricultural lands tended to decrease rapidly and the lands were covered by artificial grass and other types of forests.
This paper examines residential environment quality and housing expenses of young households through longitudinal analysis. Using the 5th and 15th Korea Welfare Panel Study (KoWePS), this research compared their housing outcomes with those of the Korean households. The statistical analysis revealed that most young households were highly-educated, salaried workers who were predominantly married men in their early 30s. There was a sharp rise in the number of female householders and one-person households. Also, the young households were largely renters of mid-sized multi-family housing with two bedrooms in non-Seoul Metropolitan Area. Their housing expense was slightly higher than the national average. As a proportion of renters of multi-family housing (exclusive of apartments) rose, the proportion of young households who spent more than 25% of their income increased faster than the national average. The proportion of young households in the Seoul Metropolitan Area outpaced the national average. Their monthly rental arrangements grew in contrast to no change in the nationwide monthly rental arrangement over the survey period, resulting in their high burden on housing expenses. Their homeownership rate was below the national average, and it decreased while the overall homeownership rate increased nationwide, implying that their housing affordability was worsened, which made it difficult for them to move up the housing ladder. Thus, this research suggests housing policies that scale up support for young households.
The Journal of the Convergence on Culture Technology
/
v.8
no.3
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pp.15-23
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2022
This study is a non-equivalent control group quasi-experimental design to test the effectiveness of educational programs on human tissue donation for nursing students to change the perception of human tissue donation. The subjects of the study were 75 nursing students located in U city, 38 in the experimental group and 37 in the control group. The data were analyzed using SPSS/WIN 23.0. The average age was 22.39±0.75 years old, women 84.2% and there was no difference in general characteristics and prior data between the two groups. Knowledge (F=-8.921, p<).001, Attitude (F=-5.414, p<).001, perception of death (F=-3.075, p=).004) showed a significant difference, and the educational intervention of nursing students developed to promote human tissue donation showed a positive effect on human tissue donation. When programs to be applied to educational institutions that train not only medical personnel but also experts in other fields must be developed, the establishment and stability of the human tissue donation culture will be solidified. It is also suggested that health care campaigns and education in public educational institutions should be conducted together.
Kim, Min Kyung;Kim, Sung Wook;Hwang, You Seong;Oh, Eunha
Journal of the Korean Applied Science and Technology
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v.39
no.1
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pp.52-62
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2022
The purpose of this study was to find a way to improve the stability and quality of urinalysis by checking the changes in the measurement values of representative clinical chemistry test items according to the repeated freezing and thawing before the urine test and the thawing process. All subjects were 10 healthy males, and the freeze and thaw stability test was performed using their urine samples. In the case of micro-albumin and amylase, there was no statistical significance at 37℃ with time, but at 42℃ and 60℃, there was a statistically significant change in the results with time. There were statistically significant changes in BUN, creatinine, uric acid, and glucose. As a result of long-term stability, after 7 days, glucose mutation increased and amylase decreased at 60℃. In the case of glucose and amylase, there was a statistically significant change in the results over time. To obtain accurate test results, accurate standardization of urinalysis including appropriate collection, storage, and storage methods of urine samples is required and systematic study of conditions for securing stability for each biomaterial is required.
The average age of CEOs of the small and medium-sized enterprises(SMEs) in Korea is 58.8, and discussions are actively underway regarding the support towards the succession companies. Government authorities are also operating a system to support the succession companies, and recently global support is also being demanded. In order to have justification over the support for succession companies, the fact that it greatly contributes to the revitalization of the national economy and the regional economy must be acknowledged in advance. This study analyzed the degree of corporate succession revitalization of the national and regional economy through statistical and empirical analysis. With the purpose to secure the reliability of the analysis, the study has referred to the database of the "Integrated Management System for Small Business Recruitment Project" and the Korea Enterprise Data (KED), which can be the most differentiated aspect compared to the existing research of the past. According to the analysis, it shows that the old companies' performance is significantly higher than the general companies in terms of sales, number of employees, assets, and operating profits⋯etc. The management performance of the old companies (which lasted over 30 years) more than doubles the performance of the start-ups (with less than 10 years of experience) in sales, triples the number of employees, doubles the assets, and more than doubles the operating profit. Thus, it is seen that the contribution to the overall economy is significant. Additionally, as a result of the empirical analysis of the relationship between the regional old companies and the regional economic revitalization, the non-metropolitan area shows better performance than the metropolitan area in terms of the number of employees, assets, borrowings, and rent, which entails policy implications of the polarization between the metropolitan and non-metropolitan areas. In other words, it is found that old companies make a significant contribution to revitalizing the local economy, suggesting that further policies regarding corporate succession are required to support the old companies in the future.
The Journal of the Convergence on Culture Technology
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v.7
no.4
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pp.397-404
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2021
The web-based crowdfunding platform provides small-cap companies the opportunity to reduce financial risks and to reliably produce new products through pre-orders. Meanwhile, crowdfunding projects are also helping companies as a channel to test new products before mass production. Despite these advantages, from the point of view of businesses and consumers, it is true that web-based crowdfunding platforms have limitations in the retail environment. For example, the limited social elements of a web-based platform are somewhat in conflict with the basic characteristics of crowdfunding projects - which inevitably demand high social influences for the success. As such, understanding the mechanisms of social factors of crowdfunding platforms from the consumers' perspective is important. Therefore, in this study, we empirically tested the effect of social factors of crowdfunding platform on consumer participation and evaluation. Based on the Social Influence Theory and Social Presence Theory, we developed a conceptual framework where the social group size and social presence of other backers were the independent variables and the purchaser's intention to participate as the dependent variable. In the results, the size of the social group size and the perceived social presence have a significant positive effect on purchaser's participation intent. In addition, the social presence had a greater influence on the purchaser's intention to participate than the size of the sponsor's social group. We believe that our findings contribute to the extant literature by empirically demonstrating the valid effect of social factors of crowdfunding platforms on consumer evaluations.
The Journal of the Convergence on Culture Technology
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v.8
no.3
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pp.159-165
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2022
The purpose of this study is to examine racism in the movie ≪Green Book≫ and to find solutions to racism through discussion with students. Set in 1962 in the United States, this film depicts the process of forming a good bond with the black pianist Dr. Shirley and the driver Tony in a racist society. This study utilized the subject of race, one of the subjects covered in the humanities class in the global era of S University in the second semester of 2021. This is because, since the outbreak of racism, the problem of racism has continued to arise in the current COVID-19 pandemic situation. Therefore, the researcher looked at racism and intercultural education as a theoretical background, and looked at cases of racism in movies and cases of racism that have occurred today. The history of racism and discrimination dates back to medieval Europe and was caused by religious conflicts and was attributed to white supremacy. As a solution to this racial discrimination, international organizations suggested intercultural education. And the reason why film was used in this study is because it aims to provoke students' interest and motivation for learning by targeting first-year university students called the digital native generation who were born and grew up with the Internet. In this study, students' solutions to racism were presented using discussion, and then the researcher's solutions were presented.
This study was conducted to improve the direction of extracurriculular education for health students and to establish and systematic extracurricular education and operation system. The needs and priorities of extracurricular education programs were investigated through a survey of health students. The data were analyzed by Borich's needs and The Locus for Focus Model. As a result of priorities of extracurriculular programs according to Borich's needs, the top 10 programs included 'certification', 'career exploration', 'overseas service', 'second language', 'employment education', 'talent donation', 'English', 'computer utilization', and 'major convergence learning'. As a result of priorities by applying The Locus for Focus Model, 'certification', 'career exploration', 'employment education', 'foreign service', 'English', 'domestic service', 'second foreign language', 'talent donation', and 'computer utilization' was included. A total of nine programs were derived by combining Borich and The Locus for Focus Model, and priorities were 'certification', 'career exploration', 'overseas service', 'second foreign language', 'employment education', 'talent donation', 'English', 'computer utilization', and 'domestic service'. As a result of this study, health students had a high needs for comparison programs for employment and volunteer programs, so universities should reflect this and establish a comparison program operation system for health students.
Journal of the Korean Society for Library and Information Science
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v.56
no.1
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pp.201-220
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2022
This study suggests a theoretical model of information literacy instructions in the context of the Extended Essay included in IB(International Baccalaureate) Diploma Program Core. The study particularly analyzed I-LEARN model as a model to teach and learn with information for inquiry-based learning since the model was developed for the purpose of learning with information. Some school districts in Korea adapted IB programs to address the need for better education. Findings indicate the followings. First, students can achieve deep understanding by applying a model of information literacy instructions that provides scaffolding. Second, the expected roles of school librarians in information literacy instructions for Extended Essay are process specialists, teachers, and instructional partners. Third, I-LEARN model is appropriate as a framework to teach information literacy skills for inquiry needed for Extended Essay. Fourth, I-LEARN assessment rubric is useful in assessing the process and outcomes of students' information seeking and use. Implications include that school librarians should develop themselves as experts in information literacy instructions for inquiry-based learning such as Extended Essay, and that Korean schools recognize the crucial role of school librarians in teaching information literacy skills for inquiry-based learinng.
In this study, the Artificial Neural Network (ANN) was used to mapping air temperature in Seoul. MODerate resolution Imaging Spectroradiomter (MODIS) data was used as auxiliary data for mapping. For the ANN network topology optimizing, scatterplots and statistical analysis were conducted, and input-data was classified and combined that highly correlated data which surface temperature, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), time (satellite observation time, Day of year), location (latitude, hardness), and data quality (cloudness). When machine learning was conducted only with data with a high correlation with air temperature, the average values of correlation coefficient (r) and Root Mean Squared Error (RMSE) were 0.967 and 2.708℃. In addition, the performance improved as other data were added, and when all data were utilized the average values of r and RMSE were 0.9840 and 1.883℃, which showed the best performance. In the Seoul air temperature map by the ANN model, the air temperature was appropriately calculated for each pixels topographic characteristics, and it will be possible to analyze the air temperature distribution in city-level and national-level by expanding research areas and diversifying satellite data.
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