• Journal of Family Resource Management and Policy Review
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• v.23 no.1
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• pp.17-34
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• 2019

Older women who live alone are among society's most vulnerable people, since they experience increased risk of multiple chronic diseases and have limited financial protection. This can lead older women living alone to catastrophic health expenditure(CHE), which is defined as a healthcare expenditure that exceeds a certain portion of a household's ability to pay. Using the Korean Longitudinal Study of Ageing(KLoSA), this study investigated the incidence of CHE among older women living alone and identified the factors related to this incidence. Applying health expenditure thresholds of 10%, 20%, 30% and 40% of ability to pay, the proportions of those with CHE were 41.3%, 22.9%, 14.6%, and 9.4%, respectively. Logistic regression models were used to identify factors related to CHE incidence, which include demographics, income, the number of chronic diseases, perceived health status, and health insurance type. The results show that the health care safety net in South Korea is insufficient for older women living alone. The findings can guide policymakers in improving healthcare and welfare policies to protect people from catastrophic payments. Particularly, welfare policies should be established for poor non-recipients who are not included within the benefits scope of the National Basic Livelihood Security System due to the unrealistic criteria of income recognition and family support obligation.

• Journal of the Korea Society of Computer and Information
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• v.24 no.1
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• pp.239-246
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• 2019

In this paper, we propose an effective software education donation model for the social care class. The types of software education for elementary, middle, and high school for the social care class are in the order of after school classes, club activities, creative experiences, and regular classes. In elementary school students, it is effective to precede visual programming education based on block coding and to conduct curriculum convergence with SW and HW at the beginning, and high school students are carrying out text programming education like Python. Software education for social care class The contribution activity model can be classified into five types such as geographically difficult area, multicultural family areas, orphanage, reformatory, and basic livelihood security recipient. In addition, the survey results show that the students' interest in software education and their satisfaction are all very high at 96%. Effective software education for the social care class In the donation model, the lecturers consist of responsible professors, lecturers, and assistant instructors. Software training for the social care class is effective on a year-by-year basis, so that students can feel authenticity and trust. Software education contents focus on visual programming and physical computing education in elementary or middle school, and text programming and physical computing education in high school. It is necessary to construct a software education donor matching system that helps efficient management of software education donations by efficiently matching schools (consumers: elementary, middle, high school) and software education donors(suppliers).

• Journal of Korean Society of Forest Science
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• v.109 no.4
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• pp.421-428
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• 2020

Tamarind (Tamarindus indica L.) is one of the multipurpose tree species distributed in the tropical and sub-tropical climates. It is an important fruit yielding tree that supports the livelihood and has high social and cultural values for rural communities. The vegetative, reproductive, qualitative, and quantitative traits of tamarind vary widely. Characterization of phenotypic and genetic structure is essential for the selection of suitable accessions for sustainable cultivation and conservation. This study aimedto examine the genetic relationship among the collected accessions of sweet, red, and sour tamarind by using Random Amplified Polymorphic DNA (RAPD) primers. Nine accessions were collected from germplasm gene banks and subjected to marker analysis. Fifteen highly polymorphic primers generated a total of 169 fragments, out of which 138 bands were polymorphic. The polymorphic information content of RAPD markers varied from 0.10 to 0.44, and the Jaccard's similarity coefficient values ranged from 0.37 to 0.70. The genetic clustering showed a sizable genetic variation in the tamarind accessions at the molecular level. The molecular and biochemical variations in the selected accessions are very important for developing varieties with high sugar, anthocyanin, and acidity traits in the ongoing tamarind improvement program.

• Animal Systematics, Evolution and Diversity
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• v.37 no.1
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• pp.9-14
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• 2021

Invasive species threaten global biodiversity as well as human livelihood and much of the global lands are vulnerable to these threats. Numerous freshwater turtles from the northern hemisphere have been introduced in East Asian countries, including the Republic of Korea. Knowing turtle's behavioral ecology is valuable to manage introduced populations and a distinctive behavior is basking for behavioral thermoregulation. To understand the possibility of using basking to enhance trapping, we tested thermotaxis in the river cooter (Pseudemys concinna). Turtles were placed in an aquarium containing heated and non-heated mats under controlled water and air temperature, air humidity and light. We found that P. concinna stayed significantly longer on heated mats than on unheated control mats in 11 out of 18 trials, demonstrating that heat source is a potential attractant for P. concinna. We recommend the use of heat source to bait traps used for population control of invasive freshwater turtles.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.15 no.5
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• pp.1690-1707
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• 2021

Precipitation prediction during flood season has been a key task of climate prediction for a long time. This type of prediction is linked with the national economy and people's livelihood, and is also one of the difficult problems in climatology. At present, there are some precipitation forecast models for the flood season, but there are also some deviations from these models, which makes it difficult to forecast accurately. In this paper, based on the measured precipitation data from the flood season from 1993 to 2019 and the precipitation return data of CWRF, ANN cycle modeling and a weighted integration method is used to correct the CWRF used in today's operational systems. The MAE and TCC of the precipitation forecast in the flood season are used to check the prediction performance of the proposed algorithm model. The results demonstrate a good correction effect for the proposed algorithm. In particular, the MAE error of the new algorithm is reduced by about 50%, while the time correlation TCC is improved by about 40%. Therefore, both the generalization of the correction results and the prediction performance are improved.

• Korean Journal of Childcare and Education
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• v.18 no.5
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• pp.33-55
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• 2022

Objective: The aims of this study is to investigate the internal and external environment surrounding fathers and to promote play-participation with children and father-Infants Intimacy by identifying the influence of a father's belief concerning gender-equal parental role and the mother's roles as a gatekeeper. Methods: The participants of this study were 291 fathers who had infants ranging from 1-36 months of age and were living in Seoul and South Chungcheong Province. The data were collected through the questionnaires and analyzed using the SPSS 24.0. Results: The main results are as follows. First, gender roles, livelihood keeper-father beliefs, importance of father rearing, and the mother's role as a doorkeeper affect the father's participation in play. This differs according to the characteristics of each type of play. Second, it was found that the father's gender roles and the mother's role as a doorkeeper had a significant effect on the intimacy between the father and the infant. Conclusion/Implications: The results of this study revealed that fathers' belief in gender-equal parenting and mothers' encouragement through opening the door as gatekeepers affect the formation of intimacy between fathers and their children in infancy, and are factors that influence play participation.

• Journal of Preventive Medicine and Public Health
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• v.55 no.5
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• pp.444-454
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• 2022

Objectives: We aimed to identify the factors related to depression and quality of life in patients with hypertension by using multilevel regression analysis. Methods: In 2019, 229 043 participants in the Korean Community Health Survey were selected as the study group. Individual factors were identified using data from the 2019 Community Health Survey. Regional factors were identified using data from the National Statistical Office of Korea. Multilevel regression analysis was conducted to find individual and local factors affecting depression and quality of life in patients with hypertension and to determine any associated interactions. Results: As individual factors in patients with hypertension, women, those with lower education-levels, recipients of basic livelihood benefits, and those with poor dietary conditions showed stronger associations with depression and quality of life. As regional factors and individual-level variables in patients with hypertension, lower gross regional personal income, fewer doctors at medical institutions, and lower rates of participation in volunteer activities presented stronger associations with depression and quality of life. In addition, the associations of depression with gross regional personal income, the number of doctors at medical institutions, and dietary conditions were significantly stronger in patients with hypertension than in patients without hypertension. The associations of gender and employment status with quality of life were also significantly greater. Conclusions: Policy interventions are needed to adjust health behaviors, prevent depression, and improve quality of life for patients with hypertension, especially for those with the risk factors identified in this study.

• Journal of People, Plants, and Environment
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• v.24 no.6
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• pp.551-561
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• 2021

Background and objective: Vietnam is prioritizing agricultural production for food export capacity in all national policies. As a result, for three decades, its agriculture has been making quite many remarkable achievements. Methods: The most successful one is that the nation has become one of the world's leading rice exporters and ensures its national food security. Through these endeavors, the Mekong River Delta (MRD), in particular, has emerged as a key region in ensuring national food security and rice export. Results: The new era can now see Vietnamese agriculture turning to place special emphasis on commodity quality and the improvement of the living environment. This is evidenced, for example, by the phenomenon that the MRD, as a rice basket of the whole country, is making moves back to nature-based agriculture with attempts to restore the natural ecology, including preserving and restoring local traditional rice seeds, adopting natural farming practices and minimizing the use of chemical fertilizers and pesticides. Conclusion: The case studies of nature-based farming practices in the MRD indicate that, while the national agriculture is generally developing large-scale production, the small-scale farming in the region, integrated with tourist and educational activities on-site, is meeting the demands of a highly potential domestic niche market. Moreover, this model appears to be a sustainable farming approach that defines itself as a working green livelihood for the region.

• 중국학논총
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• no.71
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• pp.237-254
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• 2021

It can be said that the fishery industry in ancient China did not originally occupy a very special economic area even when it was started. At that time, the fishery industry was only treated as a means for the livelihood of ordinary people. Over time, the value and economic benefit of aquatic products began to be valued. Its origin can be said to have originated from Yugong(禹貢), which was established by King Yu. These records made it clear that the ancient kings placed great importance on the economic value of seafood and the importance of the fishery industry in the government. Thus, the fishery industry was established as a part of the socio-economic system. In ancient China, the fishery industry was one of the industrial systems that supported traditional Chinese society along with agriculture. It will be possible to analyze the way of thinking of modern Chinese people on the fishery industry through the study of the fishery industry in the traditional era of China. And based on this analysis, I think that it will be able to contribute to a certain extent in establishing a theoretical foundation for countermeasures against the reckless overfishing of fishery resources by Chinese fishermen in the West Sea, which is currently a problem.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.16 no.8
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• pp.2571-2586
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• 2022

The rapid popularity of government social media has generated huge amounts of text data, and the analysis of these data has gradually become the focus of digital government research. This study uses Python language to analyze the big data of the Chinese provincial government Weibo. First, this study uses a web crawler approach to collect and statistically describe over 360,000 data from 31 provincial government microblogs in China, covering the period from January 2018 to April 2022. Second, a word separation engine is constructed and these text data are analyzed using word cloud word frequencies as well as semantic relationships. Finally, the text data were analyzed for sentiment using natural language processing methods, and the text topics were studied using LDA algorithm. The results of this study show that, first, the number and scale of posts on the Chinese government Weibo have grown rapidly. Second, government Weibo has certain social attributes, and the epidemics, people's livelihood, and services have become the focus of government Weibo. Third, the contents of government Weibo account for more than 30% of negative sentiments. The classified topics show that the epidemics and epidemic prevention and control overshadowed the other topics, which inhibits the diversification of government Weibo.