• Title/Summary/Keyword: co occurrence

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A rare case report of Mirizzi syndrome type III treatment algorithm in situs inversus totalis, large ventricular septal defect and transposition of great arteries in a young diabetic patient

  • Raju Badipati;Samali Maity;Muralidharsai Maddasani;Syed Mazhar Galib Ali;Farha Naaz Khatoon;Lakshmi Durga Kasinikota;Kushal Gunturu;Gopu Prameela
    • Annals of Hepato-Biliary-Pancreatic Surgery
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    • v.27 no.3
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    • pp.322-327
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    • 2023
  • Situs inversus totalis (SIT) is a rare condition in which cardiac and abdominal organs are inverted from their normal left-sided orientation. Mirizzi syndrome, characterized by the obstruction of the common hepatic duct or the common bile duct by gallstone, is a rare condition. Mirizzi syndrome co-occurrence in SIT patients is rare. Gallbladder in sinistroposition is extremely uncommon in SIT patients. We report a known case of diabetes, ventricular septal defect with transposition of the great arteries in a 32-year-old female who presented with jaundice, cholangitis, chills, and fever that had lasted for 10 days. She was confirmed to have SIT with type III Mirizzi syndrome following a series of diagnostic procedures. Primarily, endoscopic retrograde cholangiopancreatography along with common bile duct stenting was performed to initially reduce cholangitis. After an eight-week follow-up after the reduction of cholangitis, surgery was conducted. Mirror-imaged ports were used for the laparoscopic procedure, and the surgeon was on the patient's right side rather than the usual left side. The patient was discharged from the hospital following two days of uneventful healing.

A Text Mining Study on Endangered Wildlife Complaints - Discovery of Key Issues through LDA Topic Modeling and Network Analysis - (멸종위기 야생생물 민원 텍스트 마이닝 연구 - LDA 토픽 모델링과 네트워크 분석을 통한 주요 이슈 발굴 -)

  • Kim, Na-Yeong;Nam, Hee-Jung;Park, Yong-Su
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.26 no.6
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    • pp.205-220
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    • 2023
  • This study aimed to analyze the needs and interests of the public on endangered wildlife using complaint big data. We collected 1,203 complaints and their corresponding text data on endangered wildlife, pre-processed them, and constructed a document-term matrix for 1,739 text data. We performed LDA (Latent Dirichlet Allocation) topic modeling and network analysis. The results revealed that the complaints on endangered wildlife peaked in June-August, and the interest shifted from insects to various endangered wildlife in the living area, such as mammals, birds, and amphibians. In addition, the complaints on endangered wildlife could be categorized into 8 topics and 5 clusters, such as discovery report, habitat protection and response request, information inquiry, investigation and action request, and consultation request. The co-occurrence network analysis for each topic showed that the keywords reflecting the call center reporting procedure, such as photo, send, and take, had high centrality in common, and other keywords such as dung beetle, know, absence and think played an important role in the network. Through this analysis, we identified the main keywords and their relationships within each topic and derived the main issues for each topic. This study confirmed the increasing and diversifying public interest and complaints on endangered wildlife and highlighted the need for professional response. We also suggested developing and extending participatory conservation plans that align with the public's preferences and demands. This study demonstrated the feasibility of using complaint big data on endangered wildlife and its implications for policy decision-making and public promotion on endangered wildlife.

Poly(Imide) Separator Functionalized by Melamine Phosphonic Acid for Regulating Structural and Thermal Stabilities of Lithiumion Batteries

  • Ye Jin Jeon;Juhwi Park;Taeeun Yim
    • Journal of Electrochemical Science and Technology
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    • v.15 no.3
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    • pp.365-372
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    • 2024
  • As the energy density of lithium-ion batteries (LIBs) continues to increase, various separators are being developed to with the aim of improving the safety performance. Although poly(imide) (PI)-based separators are widely used, it is difficult to control their pore size and distribution, and this may further increase the risk associated. Herein, a melamine phosphonic acid (MP)-coated PI separator that can effectively control the pore structure of the substrate is suggested as a remedy. After the MP material is embedded into the PI separator with a simple one-step casting process, it effectively clogs the large pores of the PI separator, preventing the occurrence of internal short circuits during charging. It is anticipated that the MP material can also suppress rapid thermal runaway upon cycling due to its ability to reduce the internal temperature of the LIB cell caused by the desirable endothermic behavior around 300℃. According to experiments, the MP-coated PI separator not only decreases the thermal shrinkage rate better than commercial poly(ethylene) (PE) separators but also exhibits a desirable Gurley number (109.6 s/100 cc) and electrolyte uptake rate (240%), which is unique. The proposed separator is electrochemically stable in the range 0.0-5.0 V (vs. Li/Li+), which is the typical working potential of conventional electrode materials. In practice, the MP-coated PI separator exhibits stable cycling performance in a graphite-LiNi0.83Co0.10Mn0.07O2 full cell without an internal short circuit (retention: 90.3%).

Analyzing Co-Occurrence of Non-Suicidal Self-Injury With Suicidal Ideation and Related Factors Among Adolescents in Jeju Island

  • Duk-Soo Moon;Un-Sun Chung;Young Sook Kwack;Bung-Nyun Kim;Na Ri Kang
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • v.35 no.2
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    • pp.119-126
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    • 2024
  • Objectives: Non-suicidal self-injury (NSSI) and suicidal behavior, including suicidal ideation (SI) and suicide attempts, are important predictors of suicide in adolescents. This study aimed to investigate the associations between NSSI, SI, NSSI+SI, mental health problems, and family factors in Korean adolescents in Jeju Island, with an emphasis on key findings. Methods: A total of 561 adolescents completed self-report questionnaires regarding demographics, NSSI, SI, suicidal behavior, perceived family functioning, and mental health problems, which were assessed using Center for Epidemiological Studies Depression Scale for Children, Screen for Children Anxiety-Related Disorders (SCARED), and Youth Self-Report (YSR). Data were analyzed using descriptive statistics, one-way analysis of variance, chi-square test, post-hoc analyses, and multivariate logistic regression. Results: In this study, 22.3% of adolescents reported either NSSI or SI, with 5.5% reporting NSSI and 20.7% reporting SI. Combined (NSSI+SI) group showed a significantly higher SCARED score, anxiety/depression, thought problems, attention problem, and rule breaking on YSR than did the SI only group. Higher level of depression and anxiety were significantly associated with NSSI and SI. Female sex and perceived family dissatisfaction were significantly associated factors for SI, but not for NSSI in multivariate logistic regression. Conclusion: This study provides insights into the clinical characteristics and associated factors among adolescents with NSSI, SI, and NSSI+SI in Jeju Island. Identifying these results can inform the development of targeted prevention and intervention strategies to mitigate the negative consequences of these behaviors and contribute to a better understanding of the role of family in this context.

Prevalence and molecular characteristics of carbapenem-resistant Escherichia coli isolated from dogs in South Korea

  • Bo-Youn Moon;Md. Sekendar Ali;Seunghoe Kim;Hee-Seung Kang;Ye-Ji Kang;Jae-Myung Kim;Dong-Chan Moon;Suk-Kyung Lim
    • Journal of Veterinary Science
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    • v.25 no.5
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    • pp.67.1-67.8
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    • 2024
  • Importance: Carbapenem-resistant Enterobacteriaceae are emerging as a global public health risk. Therefore, assessing the prevalence of carbapenem-resistant Escherichia coli (CRE) in both humans and animals is important. Objective: We aimed to ascertain the occurrence and characteristics of CRE isolated from companion animals, dogs and cats. Methods: E. coli strains were tested for antimicrobial susceptibility using the broth microdilution technique. Antimicrobial resistance genes were detected by polymerase chain reaction and sequencing analysis. The molecular characteristics of CRE were determined using multi-locus sequence typing, replicon typing, and pulsed-field gel electrophoresis (PFGE). Results: In total, 13 CRE isolates (0.13%) were identified from dogs possessing blaNDM-5 along with β-lactamase genes, mostly blaCMY-2 (92.2%) and blaTEM-1 (53.8%). The commonly observed mutations were S83L and D87N in gyrA, S80I in parC, and S458A in parE. CRE carried non-beta-lactam resistance genes, with the majority being tet(B) (100%), sul (84.6%), and aac(3)-II (53.8%). Nine different PFGE patterns (P1-P9), IncX3-type plasmids (69.2%), and ST410 (84.6%) were predominantly detected. Conclusions and Relevance: This investigation provides significant insight into the prevalence and molecular characteristics of blaNDM-5-carrying E. coli in dogs. The co-existence of blaNDM-5 and other antimicrobial resistance genes in E. coli potentially poses severe health hazards to humans.

A Bibliometric Analysis of Global Research Trends in Digital Therapeutics (디지털 치료기기의 글로벌 연구 동향에 대한 계량서지학적 분석)

  • Dae Jin Kim;Hyeon Su Kim;Byung Gwan Kim;Ki Chang Nam
    • Journal of Biomedical Engineering Research
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    • v.45 no.4
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    • pp.162-172
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    • 2024
  • To analyse the overall research trends in digital therapeutics, this study conducted a quantitative bibliometric analysis of articles published in the last 10 years from 2014 to 2023. We extracted bibliographic information of studies related to digital therapeutics from the Web of Science (WOS) database and performed publication status, citation analysis and keyword analysis using R (version 4.3.1) and VOSviewer (version 1.6.18) software. A total of 1,114 articles were included in the study, and the annual publication growth rate for digital therapeutics was 66.1%, a very rapid increase. "health" is the most used keyword based on Keyword Plus, and "cognitive-behavioral therapy", "depression", "healthcare", "mental-health", "meta-analysis" and "randomized controlled-trial" are the research keywords that have driven the development and impact of digital therapeutic devices over the long term. A total of five clusters were observed in the co-occurrence network analysis, with new research keywords such as "artificial intelligence", "machine learning" and "regulation" being observed in recent years. In our analysis of research trends in digital therapeutics, keywords related to mental health, such as depression, anxiety, and disorder, were the top keywords by occurrences and total link strength. While many studies have shown the positive effects of digital therapeutics, low engagement and high dropout rates remain a concern, and much research is being done to evaluate and improve them. Future studies should expand the search terms to ensure the representativeness of the results.

Peatland restoration research: a global overview with insights from Indonesia

  • Kushartati Budiningsih;Prakoso Bhairawa Putera;Ari Nurlia;Nur Arifatul Ulya;Fitri Nurfatriani;Mimi Salminah;Dhany Yuniati;Asmanah Widarti
    • Journal of Ecology and Environment
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    • v.48 no.3
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    • pp.263-276
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    • 2024
  • Background: Repeated and severe fires have led to a large investment in research directed towards recapturing the natural values of Indonesia's peatland forest resources. The aim of this study was to identify the patterns and trends in research on peatland restoration-related literature available on the Scopus database. Methods in this paper a bibliometric methodology, the Scopus database and VOSviewer were used explore the trends in the published peatland restoration literature in the period 1994-2021; the leading journals and most influential authors, affiliations, countries, documents and research themes were identified. Results: Three hundred and seventeen documents including 266 journal articles were identified. The leading journals based on numbers of articles published and citations were Restoration Ecology and Ecological Engineering. Authors affiliated to institutions in Canada and the United Kingdom were the most influential. Indonesia was the third most influential based on numbers of documents. The most influential article was "The underappreciated potential of peatlands in global climate change mitigation strategies" by Liefield J in Nature Communications with an annual average citation rate of 66/year. A keyword co-occurrence network identified nine main themes in peat restoration research. Conclusions: The findings of the study are used to outline the types of research in peat restoration now required to meet the outstanding and unmet challenges confronted in Indonesia. Three significant challenges have been identified: (1) anthropogenic, those that encompass issues related to community acceptance and participation in peatland restoration, (2) ecological, those associated with severely degraded peatlands, and (3) economic, the absence of secure funding to cover substantial costs.

Perceived Healthiness of Healthy Restaurants Based on Network Analysis and LDA Topic Modeling (네트워크 분석과 LDA 토픽 모델링을 활용한 건강한 레스토랑의 지각된 건강성 요인)

  • Minji Kim;Sunhee Seo
    • Knowledge Management Research
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    • v.25 no.3
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    • pp.201-230
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    • 2024
  • This study aimed to identify the factors contributing to perceived healthiness by analyzing consumer reviews of healthy restaurants. While previous studies have primarily focused on the healthiness of food products, comprehensive research from the perspective of restaurants through online review analysis is limited. To achieve this, co-occurrence network analysis and LDA topic modeling, methods of text mining, were used to investigate consumers' health-related perceptions and preferences for healthy restaurants based on a large dataset of online reviews. The analysis revealed that consumers emphasize various health-related factors such as taste, ingredient categories, freshness, price, nutritional content, healthy options, and menu diversity when choosing healthy restaurants. These factors significantly influence the evaluation and selection of restaurants. Notably, it was found that the taste of food offered in healthy restaurants is closely linked to the perception of healthiness, highlighting the importance of a healthy taste derived from ingredients. In conclusion, this study provides practical insights into how healthy restaurants can reflect and meet consumers' health perceptions and suggests strategic directions for the food and dining industry to respond to health trends.

The Role of Organic Amendments with Different Biodegradability in Ammonia Volatilization during Composting of Cattle Manure (우분뇨 퇴비화 중 암모니아 휘산에 대한 이분해성 및 난분해성 유기 첨가물의 역할)

  • Lim, Sang-Sun;Park, Hyun-Jung;Lee, Sun-Il;Lee, Dong-Suk;Kwak, Jin-Hyeob;Choi, Woo-Jung
    • Korean Journal of Environmental Agriculture
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    • v.28 no.1
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    • pp.20-24
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    • 2009
  • This study was conducted to investigate the roles of co-existed organic materials (OM) with different biodegradability in composting of cattle manure in terms of $CO_2$ emission and $NH_3$ volatilization. Either sawdust (SD, low biodegradability) or rice bran (RB, high biodegradability) was mixed with cattle manure at a various rate and the amounts of $CO_2$ emission and $NH_3$ volatilization were determined periodically during 4 weeks of composting. Percentage of dry matter loss during the composting period was also calculated. The amount of $CO_2$ emitted increased with increasing rate of OM and was significantly (P<0.01) higher in the RB treatment than in the SD treatment by 43 to 122% depending on the rate of OM Accordingly, % of dry matter loss during 4 weeks of composting was higher in the RB (rang: from 35.1 % to 41.5%) than that in the SD treatments (from 18.7% to 22.6%), showing that RB is more biodegradable than SD. During the early composting period up to 8 days, negligible amount of ammonia volatilization was detected in both treatments regardless of application rates. In the RB treatment, substantial amount of ammonia volatilization was detected thereafter, however, no meaningful ammonia volatilization was observed in the SD treatment until the end of composting. Such differences could be attributed to the different properties of SD and RB. For example, the high C/N ratio of SD could enhance $NH_4^+$ immobilization and thus decrease $NH_4^+$ concentration that is susceptible to ammonia volatilization. Binding of $NH_4^+$ on to phenolic compounds of SD may also contribute to the decrease in $NH_4^+$ concentration. Meanwhile, as RB has a relatively low C/N ratio, remineralization of immobilized $NH_4^+$ could increase $NH_4^+$ concentration as high as the level for the occurrence of ammonia volatilization. Therefore, our study suggests that OM which is resistant to biodegradation can reduce $NH_3$ volatilization largely by physico-chemical pathways across the entire composting period and that easily biodegradable OM can retard $NH_3$ volatilzation via microbial immobilization in the early period of composting followed by rapid remineralization, leading to substantial volatilization of $NH_3$ in the middle stage of composting.

Object-based Building Change Detection Using Azimuth and Elevation Angles of Sun and Platform in the Multi-sensor Images (태양과 플랫폼의 방위각 및 고도각을 이용한 이종 센서 영상에서의 객체기반 건물 변화탐지)

  • Jung, Sejung;Park, Jueon;Lee, Won Hee;Han, Youkyung
    • Korean Journal of Remote Sensing
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    • v.36 no.5_2
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    • pp.989-1006
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    • 2020
  • Building change monitoring based on building detection is one of the most important fields in terms of monitoring artificial structures using high-resolution multi-temporal images such as CAS500-1 and 2, which are scheduled to be launched. However, not only the various shapes and sizes of buildings located on the surface of the Earth, but also the shadows or trees around them make it difficult to detect the buildings accurately. Also, a large number of misdetection are caused by relief displacement according to the azimuth and elevation angles of the platform. In this study, object-based building detection was performed using the azimuth angle of the Sun and the corresponding main direction of shadows to improve the results of building change detection. After that, the platform's azimuth and elevation angles were used to detect changed buildings. The object-based segmentation was performed on a high-resolution imagery, and then shadow objects were classified through the shadow intensity, and feature information such as rectangular fit, Gray-Level Co-occurrence Matrix (GLCM) homogeneity and area of each object were calculated for building candidate detection. Then, the final buildings were detected using the direction and distance relationship between the center of building candidate object and its shadow according to the azimuth angle of the Sun. A total of three methods were proposed for the building change detection between building objects detected in each image: simple overlay between objects, comparison of the object sizes according to the elevation angle of the platform, and consideration of direction between objects according to the azimuth angle of the platform. In this study, residential area was selected as study area using high-resolution imagery acquired from KOMPSAT-3 and Unmanned Aerial Vehicle (UAV). Experimental results have shown that F1-scores of building detection results detected using feature information were 0.488 and 0.696 respectively in KOMPSAT-3 image and UAV image, whereas F1-scores of building detection results considering shadows were 0.876 and 0.867, respectively, indicating that the accuracy of building detection method considering shadows is higher. Also among the three proposed building change detection methods, the F1-score of the consideration of direction between objects according to the azimuth angles was the highest at 0.891.