• Title/Summary/Keyword: 메타연구

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Effectiveness of Auricular Blood-letting Therapy for Headaches: A Systematic Review and Meta-Analysis (두통에 대한 이혈 방혈요법의 유효성 분석: 체계적 문헌고찰 및 메타분석)

  • Kyoungeun Lee;Min-Ryeong Park;Ji-Won Lee;In-Jun Hwang;Boram Lee;Jong Cheol Seo;Chan-Young Kwon
    • Journal of Oriental Neuropsychiatry
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    • v.34 no.3
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    • pp.259-274
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    • 2023
  • Objectives: The purpose of this study was to provide clinical evidence to support the use of auricular blood-letting therapy (ABT) for headaches. Methods: Studies were identified by a comprehensive search of five databases. Randomized controlled trials (RCTs) that investigated the effects of the ABT for headaches were included. Two authors independently extracted the data and assessed the methodological quality of the included studies using Cochrane's risk-of-bias tool. If two or more studies reported the same outcome, a meta-analysis was performed. Meta-analysis results for dichotomous variables are expressed as risk ratios (RRs) and 95% confidence intervals (CIs). Results: A total of eight RCTs were included in this review. The total effective rate (TER) was the most commonly used outcome measurement. Among the eight RCTs, five were included in the metaanalysis. The TER was not statistically significantly different in the ABT group compared to the medication group (two studies, n=55, RR=1.24, 95% CI: 0.78 to 1.96, p=0.36, I2 =86%). However, the TER of the combined ABT and medication group was significantly different compared to the medication alone group (four studies, n=159, RR=1.23, 95% CI: 1.12 to 1.35, p<0.0001, I2 = 0%). Pain and mental health-related outcomes in the combined ABT and medication group were significantly different from the control groups. The methodological quality of the included RCTs was generally low. Conclusions: ABT combined with medication may be effective for treating headaches. However, the number of studies included was small, so the results were insufficient, and statistically significant effects were not confirmed for a single implementation of ABT. Thus, well-designed further studies based on the findings of this study are recommended.

Revitalize the Tourism Experience Program of Hyanggyo and Seowon - Focusing on World Heritage sites in Korea - (향교·서원의 관광체험 프로그램 활성화 방안 - 국내 세계유산을 중심으로 -)

  • Bang, Mee Young
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.1
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    • pp.249-255
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    • 2023
  • World Heritage is a very important heritage that is worth protecting and handing down to future generations. In Korea, which has a long history and culture of 5,000 years, Seowon is a great advantage in that it can develop tangible and intangible Neo-Confucian ideas shared in China and East Asia, and preserve and experience them as a unique cultural resource of Korea until the present day. In order to encourage the direct experience of this long-standing cultural heritage, the government supports the national treasury and seeks to expand the demand for tourism. Accordingly, in this study, an analysis was conducted on program satisfaction, participation, and activation plans. As a result, it was found that value to see and value to experience must coexist in order for our world heritage, which requires comprehensive and continuous management and operation, and lacks accessibility, to become a tourist attraction. Also, for this purpose, promotion and development of differentiated tourism experience contents should be carried out first.

Positional Accuracy Analysis According to the Exterior Orientation Parameters of a Low-Cost Drone (저가형 드론의 외부표정요소에 따른 위치결정 정확도 분석)

  • Kim, Doo Pyo;Lee, Jae One
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.42 no.2
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    • pp.291-298
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    • 2022
  • Recently developed drones are inexpensive and very convenient to operate. As a result, the production and utilization of spatial information using drones are increasing. However, most drones acquire images with a low-cost global navigation satellite system (GNSS) and an inertial measurement unit (IMU). Accordingly, the accuracy of the initial location and rotation angle elements of the image is low. In addition, because these drones are small and light, they can be greatly affected by wind, making it difficult to maintain a certain overlap, which degrades the positioning accuracy. Therefore, in this study, images are taken at different times in order to analyze the positioning accuracy according to changes in certain exterior orientation parameters. To do this, image processing was performed with Pix4D Mapper and the accuracy of the results was analyzed. In order to analyze the variation of the accuracy according to the exterior orientation parameters in detail, the exterior orientation parameters of the first processing result were used as meta-data for the second processing. Subsequently, the amount of change in the exterior orientation parameters was analyzed by in a strip-by-strip manner. As a result, it was proved that the changes of the Omega and Phi values among the rotation elements were related to a decrease in the height accuracy, while changes in Kappa were linked to the horizontal accuracy.

Effect of Herbal Medicines on Preventing Restenosis After Percutaneous Coronary Intervention: A Systematic Review and Meta-analysis of Randomized Controlled Trials (경피적 관상동맥중재술 후 재협착 예방에 대한 한약의 효과 : 무작위배정 대조군 임상연구에 대한 체계적 문헌고찰 및 메타분석)

  • Nayeon Hur;Subin Ahn;Hongjun Kim;Insoo Jang
    • The Journal of Internal Korean Medicine
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    • v.44 no.3
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    • pp.387-401
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    • 2023
  • Objective: This study was conducted to investigate the preventive effect of herbal medicines on restenosis after percutaneous coronary intervention (PCI) by reviewing randomized controlled trials (RCTs). Methods: RCTs were searched for herbal medicine treatment after PCI using eight online databases (PubMed, CNKI, Wanfang, J-STAGE, OASIS, ScienceON, KTKP, and KISS). Studies that confirmed restenosis through coronary angiography at follow-up were selected according to the inclusion and exclusion criteria. The primary outcome was the restenosis rate, and the secondary outcome was the angina recurrence rate. Data were extracted from the final selected studies according to the research methodology and then analyzed with Review Manager 5.4.1. Study quality was assessed using Cochrane's risk-of-bias (RoB) tool. Results: Of the 252 papers obtained through the primary search, nine studies that met the selection criteria were finally selected. In these nine studies, herbal medicine combined with western medicine was used for the experimental group, and western medicine treatment was used alone for the control group. The meta-analysis result revealed that the restenosis rate and angina recurrence rate were significantly lower in the experimental group than in the control group (RR=0.34, 95% CI: 0.22-0.53, p<0.00001, I2=0% and RR=0.47, 95% CI: 0.29-0.78, p=0.004, I2=0%, respectively). Furthermore, the quality of studies assessed by Cochrane's RoB was low. Conclusions: This study showed that the combined treatment of herbal medicine and western medicine was effective in preventing restenosis and angina after PCI. As the number of papers included in this study was small, a large number of high-quality clinical studies should be considered in the future.

Reapearance and Introspection of Mysterious Reality : The Realistic Characters and Acts of Director Lee Chang-dong's Film (2018) (미스터리한 현실의 재현과 성찰 : 이창동 감독의 영화 <버닝>(2018)의 사실적인 캐릭터와 연기)

  • Lee, A-Young
    • Journal of Korea Entertainment Industry Association
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    • v.13 no.6
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    • pp.123-133
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    • 2019
  • Director Lee Chang-dong saying that the most important thing is to let the audience experience, find its meaning, interpret, and feel the pure sensation (whether it's image, sound or music) that the film has instead of narrative giving you the answers, through the film presenting the pure natural landscape as it is, but all the familiar things that can be taken as a riddle are conveyed in images, and all the elements that make up the film share its presence with each other and let us experience a mysterious weight of reality that cannot be defined through its strange symbolism and metaphors, and it reflects various human emotions, reflecting curiosity of reality, the words that are hardly spoken, meanings of life that we were not being aware of. Rather than having one definitive figure, through the character's personality expressing an imperfect character with a complex ambiguous behavior asks about the things that can't be explained logically and the fact of life that can't be divided into truth or lie. Also, the acting approaches emotionally and primitively rather than using artificial expressions, showing the invisible elements of emotions that are latent inside humans through temperate acting style, leads the audience to distant themselves and reflect more deeply into life. This study analyzed the characters and acting of the film based on director Lee Chang-dong's directing style.

Analysis of the Relationship between Urban Permeable/Impermeable Surfaces and Urban Tree Growth Using GeoXAI (GeoXAI를 활용한 도시 투수/불투수면과 도시수목 생육 관계 분석)

  • Seok Jun Kong;Joon Woo Lee;Geun Han Kim
    • Korean Journal of Remote Sensing
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    • v.39 no.6_1
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    • pp.1437-1449
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    • 2023
  • The purpose of this study is to analyze whether pervious and impervious areas in urban areas affect tree growth. In order to determine the differences in the growth of six species of trees planted simultaneously, the effects of pervious and impervious surfaces on tree growth were analyzed using the Normalized Difference Vegetation Index (NDVI) produced using Sentinel-2 and sub-divided land cover map from the Ministry of Environment. For this purpose, the Geospatial eXplainable Artificial Intelligence(GeoXAI) concept was applied. As a result of the analysis, the explanatory power of the model was found to be the best when considering the area of land cover included in the 10m range for Pinus densiflora, the 20 m range for Zelkova Serrata, Metasequoia glyptostroboides, and Ginkgo biloba, the 30 m range for Platanus occidentalis, and the 40 m range for Yoshino cherry trees. In addition, the wider the pervious area, the more active the growth of trees,showing a positive correlation, and the wider the impervious area, such as nearby artificial ground, showed a negative correlation with tree growth. This shows that surrounding pervious and impervious areas affect the growth of trees and that the scope of influence varies depending on the tree species.

Preliminary Study on All-in-JPEG with Multi-Content Storage Format extending JPEG (JPEG를 확장한 멀티 콘텐츠 저장 포맷 All-in-JPEG에 관한 예비 연구)

  • Yu-Jin Kim;Kyung-Mi Kim;Song-Yeon Yoo;Chae-Won Park;Kitae Hwang;In-Hwan Jung;Jae-Moon Lee
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.23 no.5
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    • pp.183-189
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    • 2023
  • This paper proposes a new JPEG format, All-in-JPEG, which can include not only multiple photos but also various media such as audio and text by extending the JPEG format. All-in-JPEG add images, audio, and text at the existing JPEG file, and stores meta information by utilizing the APP3 segment of JPEG. With All-in-JPEG, smartphone users can save many pictures taken in burst shots in one file, and it is also very convenient to share them with others. In addition, you can create a live photo, such as saving a short audio at the time of taking a photo or moving a part of the photo. In addition, it can be used for various applications such as a photo diary app that stores images, voices, and diary text in a single All-in-JPEG file. In this paper, we developed an app that creates and edits All-in-JPEG, a photo diary app, and a magic photo function, and verified feasibility of the All-in-JPEG through them.

The Effect of Oriental Medicine Treatments for Supraspinatus Tendinopathy: Systematic Review and Meta-Analysis (극상근 건병증의 한의학적 치료에 대한 연구 동향: 체계적 문헌 고찰과 메타 분석)

  • Dong-Hyeob Kang;Do-Hoon Lee;Sang-Joon Yoo;Seok-Gyu Yang;Ja-Yean Son;Seol Jung;Hea-Ju Kim;Minjin Kwon;Oh-Bin Kwon;Seon-Woo Jang;Hyun-Woo Cho
    • Journal of Korean Medicine Rehabilitation
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    • v.33 no.4
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    • pp.45-59
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    • 2023
  • Objectives The aim of this study was to analyze the trends of researches on oriental medicine treatments for supraspinatus tendinopathy. Methods We used five databases for searching researches; Korean studies Information Service System, Oriental Medicine Advanced Searching Integrated System, Research Information Sharing Service, PubMed, and China National Knowledge Infrastructure. Only randomized controlled trials suitable for the subject were selected. The methodological quality of included randomized controlled trials (RCTs) was assessed by the Cochrane risk of bias tool. Results Twenty randomized controlled trials were analyzed. There were 9 types of treatment interventions; acupuncture, acupotomy, pharmacopuncture, electroacupuncture, fire needling, warming needle, catgut-embedding therapy, herbal medicine, cupping. The most frequently used treatment intervention was acupuncture and acupotomy. There were 9 outcome measurements including visual analog scale (VAS), Constant-Murley Score (CMS), and range of motion. The most used measurement was VAS. As a result of meta-analysis, acupuncture was more effective than control group in VAS. Additionally, acupotomy was clinically significant compared to control groups in VAS and CMS. Conclusions In this review, we analyzed researches on effectiveness of oriental medicine for supraspinatus tendinopathy. A provisional conclusion can be produced that acupuncture and acupotomy showed beneficial effect to supraspinatus tendinopathy. Although there were some RCT studies, many of them had a high risk of bias, so it is hard to conclude that our study can include overall clinical status. Further well-designed trials are needed.

Optimal Supply Calculation of Electric Vehicle Slow Chargers Considering Charging Demand Based on Driving Distance (주행거리 기반 충전 수요를 고려한 전기자동차 완속 충전기 최적 공급량 산출)

  • Gimin Roh;Sujae Kim;Sangho Choo
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.23 no.2
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    • pp.142-156
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    • 2024
  • The transition to electric vehicles is a crucial step toward achieving carbon neutrality in the transportation sector. Adequate charging infrastructure at residential locations is essential. In South Korea, the predominant form of housing is multifamily dwellings, necessitating the provision of public charging stations for numerous residents. Although the government mandates the availability of charging facilities and designated parking areas for electric vehicles, it bases the supply of charging stations solely on the number of parking spaces. Slow chargers, mainly 3.5kW charging outlets and 7kW slow chargers, are commonly used. While the former is advantageous for installation and use, its slower charging speed necessitates the coexistence of both types of chargers. This study presents an optimization model that allocates chargers capable of meeting charging demands based on daily driving distances. Furthermore, using the metaheuristic algorithm Tabu Search, this model satisfies the optimization requirements and minimizes the costs associated with charger supply and usage. To conduct a case study, data from personal travel surveys were used to estimate the driving distances, and a hypothetical charging scenario and environment were set up to determine the optimal supply of 22 units of 3.5kW charging outlets for the charging demands of 100 BEVs.

A Study on Pre-service Elementary School Teachers' Perspectives on the Science Curriculum in the Fourth Industrial Revolution Era through Photovoice Activity: Based on Three Perspectives on the 'Saber-toothed Tiger Curriculum' (초등 예비교사들의 포토보이스 활동을 통한 4차 산업혁명 시대 과학 교육과정 관점 탐색 - '검치호랑이 교육과정'의 세 가지 관점을 바탕으로 -)

  • Kim, Dong-Ryeul
    • Journal of Korean Elementary Science Education
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    • v.43 no.2
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    • pp.219-232
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    • 2024
  • This study aims to determine the perspectives of pre-service elementary school teachers on the science curriculum in the fourth industrial revolution era. In this study, 128 pre-service elementary school teachers were asked to express their perspectives on the Saber-toothed Tiger Curriculum through photovoice activities. The resulting images were classified into three types: conservative, progressive, and radical perspectives. The number of both conservative and progressive perspectives was similar and high, whereas the number of radical perspectives was l ow. Those who had conservative perspectives on the Saber-toothed Tiger curriculum regarded "Inquiry" as the basis of the science curriculum, which should be maintained regardless of the time period and environment. Similarly, older teachers believed that this curriculum was based on eternal truth, which should be protected. Those who showed progressive perspectives on the Saber-toothed Tiger curriculum regarded a progressive person as someone succeeding to the blood of "New fist," and they showed positive attitudes toward AI-based education such as coding and meta-verse, regarding these practices as part of the teaching and learning method that could replace the existing inquiry-based education. Those who showed radical perspectives on the Saber-toothed Tiger Curriculum assumed critical attitudes toward the rapidly changing political circumstances of science education and criticized conflicts between different social classes formed through progressive curriculum. Based on these results, this study found that pre-service elementary school teachers needed to consider the science curriculum from several different perspectives rather than just one.