• Title/Summary/Keyword: IT trends analysis

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Analysis of trend and variation characteristics of UNEP and MDM climate indices: the case study of Chungcheong-do province (UNEP와 MDM 기후지수의 추세 및 변동 특성 분석: 충청도 지역을 중심으로)

  • Cho, Hyungon;Choi, Kyung-Sook
    • Journal of Korea Water Resources Association
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    • v.54 no.11
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    • pp.999-1009
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    • 2021
  • As the frequency and intensity of extreme weather events due to climate change are increasing in recent years, it is very important to evaluate and analyze climate conditions to manage and respond to the negative effects of climate change in advance. In this study, the trends and characteristics of regional climate change were analyzed by calculating the climate indices for the Chungcheong Province. Annual and monthly UNEP-MP, UNEP-PM and MDM indices were calculated using daily data from 1973-2020 collected from 10 synoptic meteorological stations operated by the Korea Meteorological Administration. The normality of climate data was analyzed through the KS test, and the climate change trend was analyzed by applying the Spearman and Pearson methods. The Chungcheongnam-do region had a relatively humid climate than the Chungcheongbuk-do region, and the annual climate indices showed a dry climate trend in Cheongju and Chungju, while the climate of Seosan and Buyeo was becoming humid. Based on the monthly trend change analysis, a humid climate trend was observed in summer and autumn, while a dry climate trend was observed in spring and winter. Comparison of climate indices during the past (2001-2010) and the recent (2011-2020) years showed a higher decrease in the average climate indices during the last 10 years and a gradually drying climate change trend was recorded.

Analysis of Published Research in the Journal of Muscle and Joint Health from 2008 to 2020 (근관절건강학회지 게재 논문 분석: 2008년부터 2020년까지)

  • Park, Mi-Sung;Lee, Kyung-Sook;Shin, Gyeyoung;Woo, Soo-Hee;Lim, Kyung-Choon;Choi, Heejung;Jin, Soo-Ji;Park, Yeon-Hwan
    • Journal of muscle and joint health
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    • v.29 no.1
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    • pp.69-80
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    • 2022
  • Purpose: To identify research trends in the Journal of Muscle and Joint Health. Methods: In total, 315 studies published between 2008 and 2020 in the Journal of Muscle and Joint Health were reviewed using analysis criteria developed by the authors Results: Most participants were adults or older adults, they mostly had arthritis. The types of research design were descriptive research (46.4%), quasi-experimental design (21.9%), randomized controlled trial (1.9%), and qualitative research (4.1%). The occupation of most authors was professor in universities (61.0%). Data were collected mostly in hospitals (41.6%) or communities (24.4%) using a questionnaire (52.4%). Written consent was obtained at 75.6% and 47.9% of studies were approved by the Institutional Review Board (IRB). The instruments measuring physical concepts such as pain, flexibility, sense of balance and fatigue were mostly used. The most common interventions in experimental studies were physical interventions, with the main being exercise. Key words were categorized into four nursing meta-paradigms: human, health, environment and nursing. The most frequently reported key words were included in the health domain. The most frequently used key words were physical intervention, older patient, osteoarthritis, pain and depression. Conclusion: The results suggest that more research studies targeting various age groups related to muscle and joint health are required. Additionally there is a need to increase the number of qualitative studies, randomized experimental studies, and systematic review studies. It is necessary to pay attention to compliance with research ethics publication regulations.

Research Trends on External Event Identification and Screening Methods for Safety Assessment of Nuclear Power Plant (원자력발전소 안전성 평가를 위한 외부사건 식별 및 선별 방법 연구동향)

  • Kim, Dongchang;Kwag, Shinyoung;Kim, Jitae;Eem, Seunghyun
    • Journal of the Society of Disaster Information
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    • v.18 no.2
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    • pp.252-260
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    • 2022
  • Purpose: As the intensity and frequency of natural hazards are increasing due to climate change, external events that affecting nuclear power plants(NPPs) may increase. NPPs must be protected from external events such as natural hazards and human-induced hazards. External events that may occur in NPPs should be identified, and external events that may affect NPPs should be identified. This study introduces the methodology of identification and screening methods for external events by literature review. Method: The literature survey was conducted on the identification and screening methods of external events for probabilistic safety assessment of NPPs. In addition, the regulations on the identification and screening of external events were investigated. Result: In order to minimize the cost of external event impact analysis of nuclear power plants, research on identifying and screening external events is being conducted. In general, in the identification process, all events that can occur at the NPPs are identified. In the screening process, external events are selected based on qualitative and quantitative criteria in most studies. Conclusions: The process of identifying and screening external events affecting NPPs is becoming important. This paper, summarize on how to identify and screen external events for a probabilistic safety assessment of NPPs. It is judged that research on bounding analysis and conservative analysis methods performed in the quantitative screening process of external events is necessary.

An Integrated Conservation of Historic City and Analysis of Its Impact on Local Land Price : Focusing on Historic Landscape Improving Project in Buyeo (역사도시의 통합적 보존이 지역의 지가에 미치는 영향 분석 : 부여 고도이미지찾기 사업을 중심으로)

  • Kim, Soomin
    • 지역과문화
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    • v.7 no.4
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    • pp.21-48
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    • 2020
  • The purpose of this study is to analyze how the integrated heritage conservation actually affected the urban economy of historical cities. To this end, this study examined the trends and meanings of an integrated heritage conservation, and a relationship between sustainable urban development and integrated heritage conservation to find out connectivity with urban economy. Before an empirical analysis of domestic policy of integrated conservation of heritage, this study overlooked the system of the preservation and promotion of ancient cities, which can be called integrated heritage conservation system in Korea, and examined how the historic landscape improving project, which is being implemented as part of the policy of the preservation and promotion of ancient cities, actually affected the urban economy. This study empirically identified the impact of the project through a land price analysis of the region. This study focused on analyzing an impact of the project on a price of land in the proximity of subsidized land lot and analyzed the impact through Difference-In-Difference method. In particular, the project effect was analyzed only for the settlement zones among the preservation and promotion zones where the project was carried out, and as a result, it was confirmed that the average price of lands in the proximity of subsidized land increased more over the same period than in the areas where the project was not intensively implemented.

An Exploratory Study on the Learning Community: Focusing on the Covid19 Untact Era (배움공동체에 대한 탐색적 연구 : covid19 언택트시대를 중심으로)

  • Jeong, Su-Jeong;Im, Hong-Nam;Park, Hong-Jae
    • Journal of Convergence for Information Technology
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    • v.12 no.5
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    • pp.237-245
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    • 2022
  • This study examines the social discourse on the characteristics of the learning community in the untact era, and discusses the directions that learning communities for children could explore and consider in the pandemic situation and beyond. For this purpose, big data for one year, from January 20, 2020 to January 20, 2021, were collected through internet portal sites (includingincluding Google News, Daum, Naver and other News surfaces), using two keywords "untact" and "learning community", and analyzed by employing a word frequency and network analysis method. The analysis results show that several important terms, such as 'village education community', 'operation', 'activity', 'corona 19', 'support', and 'online' are closely related to the learning community in the untact era. The findings from this study also have implications for developing the learning community as an alternative model to fill the existing gaps in public care and education for children during the prolonged pandemic and afterwards. In conclusion, the study findings highlight that it is meaningful to identify key terms and concepts through word frequency analysis in order to examine social trends and issues related to the learning community.

The Context and Reality of Memes as Information Resources: Focused on Analysis of Research Trends in South Korea (정보자원으로서 '밈'의 맥락과 실재 - 국내 연구동향 분석을 중심으로 -)

  • Soram Hong
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.34 no.3
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    • pp.227-253
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    • 2023
  • The study is a preliminary study to conceptualize memes as information resources for literacy education in information environment changed with digital revolution. The study is to explain the context and reality of memes in order to promote the utilization of memes as information resources. The research questions are as follows: First, what topics are 'memes' studied with? Second, what things are captured and studied as 'memes'? The study conducted frequency and co-occurrence network analysis on 145 domestic studies and contents analysis on 73 domestic studies. The results are as follows: First, memes were mainly studied in the fields of 'humanities', 'social sciences', 'interdiciplinary studies', and 'arts and kinesiology'. Studies based on Dawkins' concept of memes (around 2012), studies on introducing the concept of memes to explain the spread of Korean Wave content (around 2015), and independent studies of memes as a major research topic in cultural sociology (around 2019) were performed. Second, memes are linguistic. Language memes (L-memes) are 102 (37%), language-visual memes (LV-memes) are 23 (8%), language-visual-musical memes (LVM-memes) are 21 (8%). Keyword 'language meme' ranked high in frequency, degree centrality and betweenness centrality of co-occurrence network. In other words, memes are expanding as a unique information phenomenon of cultural sociology based on linguistic characteristics. It is necessary to conceptualize meme literacy in terms of information literacy.

Spirituality and Social Work Scholarship in Korea - A Content Analysis - (한국에서의 Spirituality와 사회사업에 대한 연구 동향과 전망)

  • Kim, Kyung-Mee;Canda, Edward R.
    • Korean Journal of Social Welfare Studies
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    • v.40 no.2
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    • pp.203-225
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    • 2009
  • There are emerging international trends in social work scholarship toward increasing attention to spirituality in research and publications. However, little has been published about this beyond the North American and European contexts. Therefore, this article explores the state of the art scholarly social work publications in an East Asian country, the Republic of Korea. First, a brief overview is given of the history and current situation of connections between spirituality and religions with social work in Korea. Then, results of a content analysis of Korean academic journal articles are presented to indicate the state of the art and implications for further work, including international collaborations. The content analysis revealed that there is relatively little empirical work in this area, although it has grown in recent years. Most of the empirical research is based on simple statistical methods while systematic qualitative studies are lacking. Conceptual work provides guidelines for various religious specific approaches to social work; development of approaches that are inclusive of diverse religious and nonreligious spiritual perspectives is just beginning. However, there are indications of the potential for a significant increase of scholarly work on spirituality and social work. International collaborations could facilitate this.

Trend Analysis of Students' Science Achievement in National Assessment of Educational Achievement from 2003 to 2006 ($2003{\sim}2006$년 국가수준 과학과 학업성취도 변화 추이 분석)

  • Jeong, Eun-Young;Choi, Won-Ho
    • Journal of The Korean Association For Science Education
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    • v.28 no.5
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    • pp.438-452
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    • 2008
  • The purposes of National Assessment of Educational Achievement(NAEA) are to assess Korean students' achievement of the educational goals as well as to diagnose the trends of educational achievement in order to monitor the quality of education at the national level. We analysed average scores in science achievement and trend of achievement level at the National Assessment of Educational Achievement(NAEA) from the year 2003 to 2006 for 6th, 9th and 10th graders. The results are as follows: For grades 6, 9, and 10, the average scores of NAEA did not tend to increase or decrease. About the trend analysis of gender, females outperformed males for grade 6, but males outperformed females for grade 10. For grade 6, the ratio of females in Advanced level was more than that of the males in the same level. For grades 9 and 10, the ratio of male was higher than the females. For grades 6, 9 and 10, the ratio of males in Below-Basic level was more than that of females in the same level. The results of the educational achievement of urbanization shows that students in rural area scored the lowest. And the ratio of Below-basic level students was highest in rural area. It is needed that educational surroundings be improved to lessen the score difference both between genders and regions. An additional study is needed to used the results of NAEA for the improvement of curriculum and educational policy.

A Study on the Rate of Change and Direction of Passengers by Major Airlines (주요 항공사별 여객의 변동률 및 방향성 연구)

  • Soo-Ho Choi;Jeong-Il Choi
    • Industry Promotion Research
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    • v.9 no.2
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    • pp.13-22
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    • 2024
  • The purpose of this study is to derive passenger trends and change rates for each airline and identify directionality and synchronization phenomenon. Data by each airlines was collected from the National Statistics Forum of Statistics Korea, and we used a total of 156 monthly data from January 2011 to December 2023. In this study, the rate of change was calculated for domestic Full Service Carriers (Korean Air, Asiana Airlines) and Low Cost Carriers (Jeju Air, Jin Air, T'way, foreign airlines). As a result of the analysis, the correlation was found to be high for KOREA in that order: Asiana, Korean Air, Jeju Air, T'way, Jin Air, foreign airlines. The rate of increase was highest in that order: T'way, Jin Air, Jeju Air, foreign airlines, Asiana, Korean Air. In the Scatter analysis, Asiana and Korean Air showed a very strong synchronization with KOREA. In addition, Jeju Air, T'way, Jin Air and foreign airlines also showed the same direction toward KOREA to a certain degree. In the Box-Box Plot analysis, it was determined that each airline experienced a number of unusual sudden fluctuations due to the outbreak of COVID-19. Passengers have a wider range of choices due to the emergence of Low Cost Carriers, and as a result, expectations for airline service are increasing. Airlines will need to make appropriate environmental improvements to satisfy these needs for corporate development.

A Study on the Characteristics of Academic Achievement in Problem Solving and Inquiry Tasks of Korean Fourth Graders in TIMSS 2019 (TIMSS 2019 문제해결 및 탐구 과제에 대한 우리나라 초등학교 4학년 학생들의 학업성취 특성 분석)

  • Jeom-Rae Kwon
    • Journal of Science Education
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    • v.48 no.1
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    • pp.31-46
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    • 2024
  • This study analyzes the academic achievement characteristics of Korean fourth graders on the problem solving and inquiry tasks (PSIs) introduced in TIMSS 2019. TIMSS 2019 conducted a computer-based assessment in addition to the traditional paper-based assessment. The PSIs were included only in the computer-based assessment, so 30 countries participated in the PSIs of the computer-based assessment. PSIs consist of integrating multiple content and cognitive domains, including 10 or fewer items. Most of the items are constructed in an open-ended format rather than multiple-choice. The analysis results showed that there were differences in student achievement across countries depending on the inclusion of PSIs. Korea's average achievement score decreased by 1 point. The analysis of individual items showed that students' achievement was somewhat low, and the correct answer rate for male students was generally higher than that for female students in many items. Furthermore, item-by-item analysis revealed that there were items where countries such as England and Finland had higher correct answer rates than traditional high-achieving countries, i.e. Singapore, Taiwan, and Korea. Considering the recent emphasis on integrated education, it seems necessary to review the use of PSIs in assessments in Korea as well.