• Journal of Preventive Medicine and Public Health
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• 제56권1호
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• pp.1-11
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• 2023

In 1945, atomic bombs were dropped on Hiroshima and Nagasaki. Approximately 70 000 Koreans are estimated to have been exposed to radiation from atomic bombs at that time. After Korea's Liberation Day, approximately 23 000 of these people returned to Korea. To investigate the long-term health and hereditary effects of atomic bomb exposure on the offspring, cohort studies have been conducted on atomic bomb survivors in Japan. This study is an ongoing cohort study to determine the health status of Korean atomic bomb survivors and investigate whether any health effects were inherited by their offspring. Atomic bomb survivors are defined by the Special Act On the Support for Korean Atomic Bomb Victims, and their offspring are identified by participating atomic bomb survivors. As of 2024, we plan to recruit 1500 atomic bomb survivors and their offspring, including 200 trios with more than 300 people. Questionnaires regarding socio-demographic factors, health behaviors, past medical history, laboratory tests, and pedigree information comprise the data collected to minimize survival bias. For the 200 trios, whole-genome analysis is planned to identify de novo mutations in atomic bomb survivors and to compare the prevalence of de novo mutations with trios in the general population. Active follow-up based on telephone surveys and passive follow-up with linkage to the Korean Red Cross, National Health Insurance Service, death registry, and Korea Central Cancer Registry data are ongoing. By combining pedigree information with the findings of trio-based whole-genome analysis, the results will elucidate the hereditary health effects of atomic bomb exposure.

• Fisheries and Aquatic Sciences
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• 제26권3호
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• pp.216-223
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• 2023

Pacific yellowtail emperor, Lethrinus atkinsoni Seale, 1910, is one of the most targeted reef fish species in Southern Sulawesi, Indonesia. Therefore, assessing its stock is important to understand the condition of the population, providing valuable inputs for sustainable fisheries management in the area. Here we assess the stock condition of L. atkinsoni in Southern Sulawesi, Indonesia, using the length-based spawning potential ratio model. A total of 4,887 individuals were collected from commercially small-scale fishers from January to October 2022. The total length, sex, and gonad maturity of the individuals were examined. We observed that the fish length ranged from 10.5 to 39.5 cm, with an average length of 23.3 cm. The sex ratio was equal (1:1.2) between male and female individuals. Length at first maturity and length at first capture were 23.4 and 19.6 cm, respectively. In addition, we observed a growth coefficient of 0.45/year, with an asymptotic length of 41.14 cm and natural mortality of 0.6/year. Based on these life history parameters, we observed the spawning potential ratio (SPR) value of 12%, indicating an unsustainable fishery level (SPR of < 30%). Further concerns related to the sustainability of the species and strategy to rebuild stock of the L. atkinsoni in Southern Sulawesi are of utmost importance.

• Journal of Korea Trade
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• 제26권4호
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• pp.83-97
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• 2022

Purpose - In this paper, we, taking South Korea's foreign direct investment in RCEP partners as an example, will examine its investment efficiency in these countries and analyze the main influencing factors, making suggestions for further liberalizing and facilitating its investment in and even for promoting its trade and economic cooperation with them. Design/methodology - In this study, we look at the panel data of South Korea and the other 13 RCEP countries (Brunei excluded) from 2000 to 2019 and apply the stochastic frontier analysis to measure its foreign direct investment efficiency and explore the influencing factors in RCEP countries. We examine the investment potential of South Korea in these places. Findings - We find that South Korea's average investment efficiency in RCEP countries reached 0.62, indicating large investment potential. We also find that its investment efficiency in RCEP partners was heterogeneous. Our study reveals that South Korea's foreign direct investment is significantly positively correlated with the market size and population of the two countries, as well as with whether the host country has a coastline and rich natural resources, while negatively with geographic distance. It shows that free trade agreements, economic freedom, and regulatory quality play significant roles in improving investment efficiency. Originality/value - Through theoretical and empirical analysis, we deal with the efficiency and influencing factors of South Korea's direct investment in RCEP partners, proposing new drivers for facilitating its trade and investment in these countries and comprehensively evaluating the efficiency and revealing the trend of its FDI in these countries. In this paper, we put forward a solid theoretical basis for empirical analysis of the future economic and trade development between South Korea and its RCEP partners and give objective insights for further improving its foreign direct investment efficiency and tapping its investment potential.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2021년도 추계학술대회
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• pp.161-163
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• 2021

산업혁명 이후 일자리를 찾기 위해 수많은 사람이 도시로 모여들어, 현재 세계 인구 50% 이상이 도시에 살고 있다. 이러한 도시 집중화는 앞으로도 급속히 전개되어 2035년에는 75% 인구가 도시에 살 것으로 전망된다. 대도시는 점점 높아지는 인구 밀도로 인하여 환경 오염, 심각한 교통 체증, 지나치게 빠른 에너지 고갈 및 자연 생태계 파괴 등 부작용이 발생하면서 지속가능성이 떨어지고 있다. 또한, 높은 범죄율과 안전사고, 불평등과 양극화로 인한 일과 삶의 불균형, 지나치게 경쟁적인 교육 등으로 대도시 시민들의 행복 지수 역시 떨어지고 있다. 이러한 문제를 해결하기 위하여 공급자, 관리자 중심이 아닌 사용자와 시민 중심으로 설계, 운영, 관리되는 IT 기술 기반 미래형 도시 모델인 스마트시티가 탄생하게 되었다. 우리나라도 국가 중점 사업으로 스마트시티의 효율적인 건설 및 운영을 통해 도시 경쟁력을 향상하고 지속 가능한 발전을 촉진하려는 시도를 적극적으로 하고 있다. 이를 뒷받침하기 위해 본 연구는 국토종합계획 및 스마트도시 종합계획, 스마트시티 전략계획 등을 기반으로 세종시의 스마트도시서비스 기반 시설 등의 기본 방향 및 추진 전략을 검토하고, 관련 계획의 연관 관계를 조사하여 세종시 스마트시티 관련 사업 검토와 스마트도시 조성을 위한 추진 체계 및 정책을 제언하고자 한다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2022년도 춘계학술대회
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• pp.296-299
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• 2022

산업화 이후 인구의 증가와 기후변화로 인한 급격한 도시팽창 및 자연재해의 증가는 수많은 도시운영의 문제를 유발하고 있다. 4차사업혁명의 촉발로 야기된 IP 기반의 초연결성은 막대한 양의 데이터를 생산하고 이를 기반으로 도시운영의 문제를 해결하는 다양한 기술과 서비스를 가능하게 하고 있다. 특히 유무선 통신망을 통해 다양한 센서 네트워크를 구성하고 생활과 관련된 다양한 정보를 실시간으로 모바일 기기를 통해 제공함으로써 삶의 질을 높이고 있다. 본 연구에서는 미래지향적 도시운영 기술들을 위한 빌리지단위의 최적의 통신망 구성방안을 K-water 스마트빌리지 통신망 구축사례를 통해 제안하고자 한다.

• 사회복지연구
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• 제42권4호
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• pp.5-34
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• 2011

최근에 들어 대규모의 재난으로 인한 인명과 재산의 피해를 보면서 재난정신건강에 대한 관심의 필요성이 부각되고 있다. 본 연구는 재난 피해자의 정신건강 문제의 발생과 회복과정의 다양한 사회경제적 영향요인 등에 관한 실증적 연구와 이론적 논의에 대한 검토를 근거로 다차원적 재난정신건강 서비스 모델을 제시하였다. 재난피해자의 정신건강문제는 재난이란 외상적 경험과 개인내적 특성에 의해 영향을 받지만, 재난 복구 과정에 개인과 지역사회가 겪는 사회·경제·정치적 경험이 정신건강문제에 지대한 영향을 주는 것으로 나타났다. 이에 재난피해자에 대한 임상적 개입에만 초점을 두는 전통적 재난정신건강모델보다는 재난 피해자 개인과 지역공동체, 이들을 둘러싸고 있는 다양한 환경체계에 대한 다각적인 개입을 포함하는 다차원적 재난정신건강 서비스로의 전환을 제안하였다. 다차원적 모델은 전통적인 사회복지의 개입전략들을 활용하면서 재난 피해자 개인과 지역공동체의 정신건강과 사회경제적 정의를 실현할 수 있는 다양한 차원에서 개입 전략과 사회복지분야가 취해야 할 방향을 제시하였다.

• Fisheries and Aquatic Sciences
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• 제26권9호
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• pp.569-581
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• 2023

The morphology and genetic identification of Rasbora lateristriata and Rasbora argyrotaenia between cultivated and wild populations has never been reported. This study compares morphology and cytochrome c oxidase (COI) genes between farmed and wild stock Rasbora spp. in Java and Sumatra island, Indonesia. We analyzed the truss network measurement (TNM) characters of 80 fish using discriminant function analysis statistical tests. DNA was extracted from muscle tissue of 24 fish specimens, which was then followed by polymerase chain reaction, sequencing, phylogenetic analysis, fixation index analysis, and statistical analysis of haplotype networks. Basic Local Alignment Search Tool analysis validated the following species: R. lateristriata and R. argyrotaenia from farming (Jogjakarta); Rasbora agryotaenia (Purworejo), R. lateristriata (Purworejo and Malang), Rasbora dusonensis (Palembang), and Rasbora einthovenii (Riau) from natural resources. Based on TNM characters, Rasbora spp. were divided into four groups, referring to four distinct characters in the middle of the body. The phylogenetic tree is divided into five clades. The genetic distance between R. argyrotaenia (Jogjakarta) and R. lateristriata (Malang) populations (0.66) was significantly different (p < 0.05). R. lateristriata (Purworejo) has the highest nucleotide diversity (0.43). R. argyrotaenia from Jogjakarta and Purworejo shared the same haplotype. The pattern of gene flow among them results from the two populations' close geographic proximity and environmental effects. R. argyrotaenia had low genetic diversity, therefore, increasing heterozygosity in cultivated populations is necessary to avoid inbreeding. Otherwise, R. lateristriata (Purworejo) had a greater gene variety that could be used to develop breeding. In conclusion, the middle body parts are a distinguishing morphometric character of Rasbora spp., and the COI gene is more heterozygous in the wild population than in farmed fish, therefore, enrichment of genetic variation is required for sustainable Rasbora fish farming.

• 한국축산식품학회지
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• 제44권1호
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• pp.39-50
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• 2024

The projected growth of global meat production over the next decade is attributed to rising income levels and population expansion. One potentially more pragmatic approach to mitigating the adverse externalities associated with meat production involves implementing alterations to the production process, such as transitioning to cultured meat, hybrid cultured meat, and meat alternatives. Cultured meat (CM) is derived from animal stem cells and undergoes a growth and division process that closely resembles the natural in vivo cellular development. CM is emerging as a widely embraced substitute for traditional protein sources, with the potential to alleviate the future strain on animalderived meat production. To date, the primary emphasis of cultured meat research and production has predominantly been around the ecological advantages and ethical considerations pertaining to animal welfare. However, there exists substantial study potential in exploring consumer preferences with respect to the texture, color, cuts, and sustainable methodologies associated with cultured meat. The potential augmentation of cultured meat's acceptance could be facilitated through the advancement of a wider range of cuts to mimic real muscle fibers. This review examines the prospective commercial trends of hybrid cultured meat. Subsequently, the present state of research pertaining to the advancement of scaffolding, coloration, and muscle fiber development in hybrid cultured meat, encompassing plant-based alternatives designed to emulate authentic meat, has been deliberated. However, this discussion highlights the obstacles that have arisen in current procedures and proposes future research directions for the development of sustainable cultured meat and meat alternatives, such as plant-based meat production.

• 한국환경복원기술학회지
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• 제27권3호
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• pp.29-43
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• 2024

Legally protected species are one of the crucial considerations in the field of natural ecology when conducting environmental impact assessments (EIAs). The occurrence of legally protected species, especially 'Endangered Wildlife' designated by Ministry of Environment, significantly influences the progression of projects subject to EIA, necessitating clear investigations and presentations of their habitats. In perspective of statistics, a minimum of 30 occurrence coordinates is required for population prediction, but most of endangered wildlife has insufficient coordinates and it posing challenges for distribution prediction through modeling. Consequently, this study aims to propose modeling methodologies applicable when coordinate data are limited, focusing on Rodgersia podophylla, representing characteristics of endangered wildlife and northern plant species. For this methodology, 30 random sampling coordinates were used as input data, assuming little survey data, and modeling was performed using individual models included in BIOMOD2. After that, the modeling results were evaluated by using discrimination capacity and the reality reflection ability. An optimal modeling technique was proposed by ensemble the remaining models except for the MaxEnt model, which was found to be less reliable in the modeling results. Alongside discussions on discrimination capacity metrics(e.g. TSS and AUC) presented in modeling results, this study provides insights and suggestions for improvement, but it has limitations that it is difficult to use universally because it is not a study conducted on various species. By supporting survey site selection in EIA processes, this research is anticipated to contribute to minimizing situations where protected species are overlooked in survey results.

• Animal Bioscience
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• 제37권1호
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• pp.74-83
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• 2024

Objective: Mitragyna speciosa Korth is traditionally used in Thailand. They have a high level of antioxidant capacities and bioactive compounds, the potential to modulate rumen fermentation and decrease methane production. The aim of the study was to investigate the different levels of microencapsulated-Mitragyna leaves extracts (MMLE) supplementation on nutrient degradability, rumen ecology, microbial dynamics, and methane production in an in vitro study. Methods: A completely randomized design was used to assign the experimental treatments, MMLE was supplemented at 0%, 4%, 6%, and 8% of the total dry matter (DM) substrate. Results: The addition of MMLE significantly increased in vitro dry matter degradability both at 12, 24, and 48 h, while ammonia-nitrogen (NH₃-N) concentration was improved with MMLE supplementation. The MMLE had the greatest propionate and total volatile fatty acid production when added with 6% of total DM substrate, while decreased the methane production (12, 24, and 48 h). Furthermore, the microbial population of cellulolytic bacteria and Butyrivibrio fibrisolvens were increased, whilst Methanobacteriales was decreased with MMLE feeding. Conclusion: The results indicated that MMLE could be a potential alternative plant-based bioactive compound supplement to be used as ruminant feed additives.