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| ○ | Review | Clinical spectrum of posterior reversible encephalopathy syndrome in children | Posterior reversible encephalopathy syndrome (PRES) is a complex neurological condition characterized by the acute onset of neurological symptoms, such as seizures and potentially reversible vasogenic edema with preferential involvement of the parieto-occipital region in brain magnetic resonance imaging. Although PRES can present with a wide spectrum of clinical manifestations, the most common are seizures, visual disturbances, headaches, and altered mental states. PRES has been recognized in a wide variety of clinical settings including hypertension, immunosuppressants following organ transplantation, chemotherapy, renal diseases, sepsis, and autoimmune disorders. It has been increasingly reported even in children, but many aspects of this syndrome are incompletely understood and validated diagnostic criteria is still lacking. In this review, we will cover putative pathophysiological mechanisms, etiologic categories, clinico-radiological manifestations, and outcomes from previous studies. © 2020 Korean Child Neurology Society. | Hwang, Su-Kyeong; Lee, Yun-Jeong; Lee, So Mi; Kwon, Soonhak | Department of Pediatrics, Kyungpook National University Children’s Hospital, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Pediatrics, Kyungpook National University Children’s Hospital, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Radiology, Kyungpook National University Children’s Hospital, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Pediatrics, Kyungpook National University Children’s Hospital, School of Medicine, Kyungpook National University, Daegu, South Korea | 37761570400; 55978748900; 59055766200; 55468232200 | shkwon@knu.ac.kr; | Annals of Child Neurology | 2635-909X | 28 | 2 | 0 | 2025-06-25 | 0 | Children; Posterior leukoencephalopathy syndrome | fosphenytoin sodium; interleukin 1; levetiracetam; lorazepam; tumor necrosis factor; vasculotropin; blood brain barrier; blood pressure measurement; blood vessel permeability; clinical feature; differential diagnosis; diffusion weighted imaging; disease course; disease predisposition; human; immunogenicity; nuclear magnetic resonance imaging; pathophysiology; pediatrics; perception; posterior reversible encephalopathy syndrome; Review; treatment outcome | English | Final | 2020 | 10.26815/acn.2020.00031 | 바로가기 | 바로가기 | |||||||||||||||
| ○ | ○ | Article | Clinical, endocrinological, and molecular features of four Korean cases of cytochrome P450 oxidoreductase deficiency | Purpose: Cytochrome P450 oxidoreductase (POR) deficiency is a rare autosomal recessive disorder caused by mutations in the POR gene encoding an electron donor for all microsomal P450 enzymes. It is characterized by adrenal insufficiency, ambiguous genitalia, maternal virilization during pregnancy, and skeletal dysplasia. In this study, we investigated the clinical, hormonal, and molecular characteristics of patients with POR deficiency in Korea. Methods: This study included four patients with POR deficiency confirmed by biochemical and molecular analysis of POR. Clinical and biochemical findings were reviewed retrospectively. Mutation analysis of POR was performed by Sanger sequencing after polymerase chain reaction amplification of all coding exons and the exon-intron boundaries. Results: All patients presented with adrenal insufficiency and ambiguous genitalia regardless of their genetic sex. Two patients harbored homozygous p.R457H mutations in POR and presented with adrenal insufficiency and genital ambiguity without skeletal phenotypes. The other two patients with compound heterozygous mutations of c.[1329₁₃₃₀ᵢₙₛC];[1370G>A] (p.(1444Hfs*6];[R457H]) manifested skeletal abnormalities, such as craniosynostosis and radiohumeral synostosis, suggesting Antley-Bixler syndrome. They also had multiple congenital anomalies involving heart, kidney, and hearing ability. All patients were treated with physiologic doses of oral hydrocortisone. Conclusion: We report the cases of 4 patients with POR deficiency identified by mutation analysis of POR. Although the study involved a small number of patients, the POR p.R457H mutation was the most common, suggesting founder effect in Korea. POR deficiency is rare and can be misdiagnosed as 21-hydroxylase or 17a-hydroxylase/17,20-Iyase deficiency. Therefore, molecular analysis is critical for confirmatory diagnosis. | Lee, Yena; Choi, Jin-Ho; Oh, Arum; Kim, Gu-Hwan; Park, Sook-Hyun; Moon, Jung Eun; Ko, Cheol Woo; Cheon, Chong-Kun; Yoo, Han-Wook | Univ Ulsan, Childrens Hosp, Asan Med Ctr, Dept Pediat,Coll Med, 88,Olymp Ro 43 Gil, Seoul 05505, South Korea; Univ Ulsan, Childrens Hosp, Med Genet Ctr, Asan Med Ctr,Coll Med, Seoul, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Pediat, Daegu, South Korea; Pusan Natl Univ, Childrens Hosp, Dept Pediat, Sch Med, Yangsan, South Korea | Kim, Hyo-Won/M-9932-2019; Cheon, Chong Kun/GLU-0305-2022 | 57218133973; 56196966800; 57210467812; 7403064317; 59281201000; 57205770947; 7202596445; 26649396100; 7201373304 | hwyoo@amc.seoul.kr; | ANNALS OF PEDIATRIC ENDOCRINOLOGY & METABOLISM | ANN PEDIATR ENDOCRIN | 2287-1012 | 2287-1292 | 25 | 2 | ESCI | ENDOCRINOLOGY & METABOLISM;PEDIATRICS | 2020 | N/A | 1.11 | 2025-06-25 | 8 | 10 | Cytochrome P450 oxidoreductase deficiency; Disorders of sex development; POR | ANTLEY-BIXLER-SYNDROME; CONGENITAL ADRENAL-HYPERPLASIA; COMPOUND HETEROZYGOUS MUTATIONS; MUTANT P450 OXIDOREDUCTASE; STEROIDOGENESIS; ANOMALIES; PATHWAY; VARIANT; POR | Cytochrome P450 oxidoreductase deficiency; Disorders of sex develop-ment; POR | corticotropin; cytochrome P450; genomic DNA; hydrocortisone; hydroxyprogesterone; potassium; prasterone sulfate; renin; sodium; steroid 17alpha monooxygenase; steroid 21 monooxygenase; testosterone; adrenal insufficiency; ambiguous genitalia; Antley Bixler syndrome; Article; biochemical analysis; birth weight; brachycephaly; case report; child; clinical article; clitoromegaly; craniofacial synostosis; cryptorchism; disorders of higher cerebral function; DNA determination; echocardiography; exophthalmos; female; frontal bossing; gene amplification; gene mutation; genetic analysis; gestational age; hearing impairment; heart atrium septum defect; heart disease; heart ventricle septum defect; heterozygote; human; humeroradial synostosis; hypertension; hypoplasia; hypospadias; infant; karyotype; kidney disease; male; micropenis; otosclerosis; P450 oxidoreductase deficiency; phenotype; polymerase chain reaction; radiology; retrospective study; Sanger sequencing; sequence analysis; synostosis; vesicoureteral reflux | English | 2020 | 2020-06 | 10.6065/apem.1938152.076 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Article | Clinicoepidemiological Trends and Features of Epidermophyton floccosum Infections in Korea: Between Year 1998~2007 and 2008~2019 | Background: The knowledge of the clinical features and changing epidemiology of dermatophytes helps in better managing them. Objective: This study investigated the recent epidemiologic characters of Epidermophyton floccosum from January 2008 to December 2019 and attempted to compare these with previous studies. Methods: The current study included 57 patients who visited our clinic and were diagnosed with E. floccosum infection through fungal culture between January 2008 and December 2019. Data on the date of visit, gender, age at onset, and site of infection were collected through a review of medical charts and were compared with previously reported studies. Results: The frequency of isolation of E. floccosum decreased gradually, and the infections caused by E. floccosum were 33 cases of tinea cruris, 20 of tinea pedis, and 2 each of tinea corporis and tinea unguium. The male to female ratio was 10.4:1, and most infections occurred in the 10~29 year age group. Conclusion: E. floccosum infections in Korea have been decreasing rapidly since 1987. However, the clinical features of E. floccosum infections remained unchanged even at a low incidence. Copyright © 2020 by The Korean Society for Medical Mycology. All right reserved. | Park, Kyung Duck; Lee, Eun Hye; Lee, Seon Hwa; Ha, Nam Kyoung; Bang, Yong Jun; Jun, Jae Bok; Kim, Jun Young; Jang, Yong Hyun; Lee, Seok-Jong; Lee, Weon Ju | Department of Dermatology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, South Korea; Department of Dermatology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, South Korea; Department of Dermatology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, South Korea; Department of Dermatology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, South Korea; Institute of Medical Mycology, Catholic Skin Clinic, Daegu, South Korea; Institute of Medical Mycology, Catholic Skin Clinic, Daegu, South Korea; Department of Dermatology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, South Korea; Department of Dermatology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, South Korea; Department of Dermatology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, South Korea; Department of Dermatology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, South Korea | 55767995700; 57189661699; 57224078421; 57772600900; 8235433700; 35743280000; 35310922800; 57016046400; 56013454400; 24474659000 | weonju@knu.ac.kr; | Journal of Mycology and Infection | 1226-4709 | 25 | 3 | 0 | 2025-06-25 | 1 | Epidemiology; Epidermophyton floccosum; Korea | English | Final | 2020 | 10.17966/jmi.2020.25.3.57 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Book chapter | Cluster-Guided Multiscale Lung Modeling via Machine Learning | Accurate prediction of airflow distribution and aerosol transport in the human lungs, which are difficult to be measured in vivo but important to understand the structure and function relationship, is challenging. It is because the interplay between them spans more than two orders of magnitude in dimension from the trachea to alveoli. This chapter reviews the techniques and strategies for modeling lungs both within and between subjects, viz., subject specificity versus generalization from individuals to populations, with both exhibiting multiscale characteristics. For “within-subject” modeling, a computed tomography (CT)-derived subject-specific computational fluid dynamics (CFD) lung model is presented. The pipeline for building such an imaging-based lung model is composed of image segmentation and processing, geometrical modeling labeled with anatomical information, image registration, three-dimensional (accurate) and one-dimensional (approximate) coupling techniques, and a high-fidelity turbulent flow model. The subject-specific model is essential in predicting local structural and functional interactions. For “between subjects” modeling, machine learning is employed to identify homogeneous subpopulations (clusters), among healthy and diseased populations, aiming to bridge individual and population scales. For this purpose, three major issues need to be addressed. They are intersubject variability (due to, e.g., gender, age, and height), inter-site variability (due to scanner and imaging protocol differences), and definition of quantitative CT imaging-based metrics at multiple scales (due to alterations at different disease stages) needed for clustering. The use of the cluster membership to select representative subjects for detailed CFD analysis enables an examination of the cluster-specific structural and functional relationships. © Springer Nature Switzerland AG 2020. | Lin, Ching-Long; Choi, Sanghun; Haghighi, Babak; Choi, Jiwoong; Hoffman, Eric A. | Department of Mechanical Engineering, The University of Iowa, Iowa City, IA, United States, Department of Radiology, The University of Iowa, Iowa City, IA, United States, IIHR-Hydroscience and Engineering, The University of Iowa, Iowa City, IA, United States; School of Mechanical Engineering, Kyungpook National University, Daegu, South Korea; Department of Mechanical Engineering, The University of Iowa, Iowa City, IA, United States, IIHR-Hydroscience and Engineering, The University of Iowa, Iowa City, IA, United States; Department of Mechanical Engineering, The University of Iowa, Iowa City, IA, United States, IIHR-Hydroscience and Engineering, The University of Iowa, Iowa City, IA, United States; Department of Radiology, The University of Iowa, Iowa City, IA, United States, Department of Biomedical Engineering, The University of Iowa, Iowa City, IA, United States | 8923593300; 55847101000; 35754512400; 55749525100; 58000586800 | ching-long-lin@uiowa.edu; | Handbook of Materials Modeling: Applications: Current and Emerging Materials, Second Edition | 0.33 | 2025-06-25 | 3 | English | Final | 2020 | 10.1007/978-3-319-44680-6_98 | 바로가기 | 바로가기 | ||||||||||||||||||||
| ○ | ○ | Proceedings Paper | CMOS Active Pixel Sensor with Adjustable Sensitivity Using MOSFET-Type Photodetector with a Built-in Transfer Gate | CMOS image sensor (CIS) is used in various applications such as surveillance cameras, automobile cameras, mobile phones and digital single lens reflex (DSLR). The photodetectors used in the CIS are p-n junction photodiodes, pinned photodiodes, MOSFET-type photodetectors, and bipolar junction transistor-type photodetectors. A CMOS active pixel sensor (APS) with adjustable sensitivity is presented which uses MOSFET-type photodetector with a built-in transfer gate. The sensitivity of the APS using the MOSFET-type photodetector is much higher than that of the APS using the p-n junction photodiode, since the MOSFET-type photodetector is composed of a floating-gate tied to an n-well and the photocurrent is amplified by the MOSFET. Although the APS using conventional MOSFET-type photodetector cannot control the current flowing through the channel, the APS using MOSFET-type photodetector with a built-in transfer gate can control the photocurrent by adjusting the pulse level of the transfer gate. Since the transfer gate controls the amount of electric charge that is transferred from the drain of the MOSFET to the integration node, the sensitivity of the APS can be adjusted by controlling the pulse level of the transfer gate. Using the high sensitivity characteristic of MOSFET-type photodetector and the function of transfer gate, the APS maintains high sensitivity under low intensity of illumination and adjusts to low sensitivity under high intensity of illumination. These results might be useful for extending the dynamic range of the APS using the MOSFET-type photodetector. The CMOS APS was designed and fabricated using 2-poly 4-metal 0.35 mu m standard process and its performance was evaluated. | Lee, Jewon; Kim, Sang-Hwan; Lee, Jimin; Lee, Junwoo; Kwen, Hyeunwoo; Seo, Sang-Ho; Shin, Jang-Kyoo | Kyungpook Natl Univ, Sch Elect Engn, 80 Daehakro, Daegu 702701, South Korea; Korea Polytech, 80 Jungangdong 1 Gil, Yeongcheon Si 38837, Gyeongsangbuk D, South Korea | 59290998000; 57190684837; 57193811541; 57190497694; 57216127432; 8697758800; 7402723873 | jkshin@ee.knu.ac.kr; | PHOTONIC INSTRUMENTATION ENGINEERING VII | 0277-786X | 1996-756X | 11287 | 0.78 | 2025-06-25 | 2 | 3 | gate/body-tied; PMOSFET; transfer gate; active pixel sensor; adjustable sensitivity | TRANSISTOR-TYPE PHOTODETECTOR; IMAGE | Active pixel sensor; Adjustable sensitivity; Gate/body-tied; PMOSFET; Transfer gate | Cameras; CMOS integrated circuits; Photodetectors; Photodiodes; Photons; Pixels; Security systems; Semiconductor junctions; Active Pixel Sensor; Adjustable sensitivity; Gate/body-tied; pMOSFET; Transfer gate; MOSFET devices | English | 2020 | 2020 | 10.1117/12.2556234 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | ○ | Proceedings Paper | Coded Dynamic Consent framework using blockchain for healthcare information exchange | As personalized digital healthcare is attracting attention, recognition of data sovereignty has been essential in healthcare data exchange. Dynamic consent is a new approach that patients enable to tailor and manage their consent. It expands patients' autonomy by giving the right to intervene in the healthcare data exchange process. This study proposes a Coded Dynamic Consent framework based on blockchain. We developed five design criteria to support dynamic consent and represent consent preferences as a coded format. The framework ensures data sovereignty and autonomy of a data provider so that patient-centered healthcare data exchange environment could be achieved. | Lee, Ah Ra; Kim, Min Gyu; Won, Kyung Jae; Kim, Il Kon; Lee, Eunjoo | Kyungpook Natl Univ, Coll IT Engn, Sch Comp Sci & Engn, Daegu, South Korea; Qucell Networks Co Ltd, Seoul, South Korea; Kyungpook Natl Univ, Coll Nursing, Daegu, South Korea | 57207456585; 57201126946; 57216703520; 14919454400; 56502620400 | eara0367@gmail.com;mingyu3317@gmail.com;yui06031@gmail.com;ikkim@knu.ac.kr;jewelee@knu.ac.kr; | 2020 IEEE INTERNATIONAL CONFERENCE ON BIOINFORMATICS AND BIOMEDICINE | 2156-1125 | 2156-1133 | 1.4 | 2025-06-25 | 2 | 8 | dynamic consent; data sovereignty; blockchain; patient-centered healthcare; healthcare information exchange | blockchain; data sovereignty; dynamic consent; healthcare information exchange; patient-centered healthcare | Bioinformatics; Blockchain; Electronic data interchange; Design criteria; Dynamic consents; Exchange process; Information exchanges; New approaches; Patient-centered healthcare; Health care | English | 2020 | 2020 | 10.1109/bibm49941.2020.9313330 | 바로가기 | 바로가기 | 바로가기 | ||||||||||||
| ○ | ○ | Proceedings Paper | Collaborative Earthquake Detection and Response using Smart Devices | An earthquake detection and response system is crucial due to the fatal nature of earthquakes. Recently, extensive research efforts have been made to detect earthquakes in real time and give an alert by incorporating with server-based systems or by working as a stand-alone device. However, such approaches still have many challenges due to the cost of network and server infrastructures or the inaccuracy of detection algorithms. In this work, we introduce a collaborative approach using smart devices located in a near area to detect earthquakes and issue an alert with detailed action plans. A smartphone's accelerometer works as a seismic sensor to monitor ground motions when it is in a steady state. Once an earthquakelike motion is detected, it is sent to nearby devices through D2D communications to confirm it as an earthquake. Our experimental results show that the proposed approach can be effective in a home environment or an earthquake early warning system is not present. | Khan, Irshad | Kyungpook Natl Univ, Dept Comp Sci & Engn, Daegu, South Korea | Khan, Irshad/AAN-8522-2020 | 36166674500 | irshad.cs@knu.ac.kr; | 2020 IEEE/ACM 7TH INTERNATIONAL CONFERENCE ON MOBILE SOFTWARE ENGINEERING AND SYSTEMS, MOBILESOFT | 0.45 | 2025-06-25 | 0 | 3 | earthquake; machine-learning; device-to-device; smartphones | device-to-device; earthquake; machine-learning; smartphones | Real time systems; Software engineering; Collaborative approach; D2D communications; Detection algorithm; Earthquake detection; Earthquake early warning systems; Home environment; Server infrastructure; Stand-alone devices; Earthquakes | English | 2020 | 2020 | 10.1145/3387905.3388602 | 바로가기 | 바로가기 | 바로가기 | |||||||||||||
| ○ | ○ | Proceedings Paper | Collapse of Online Social Networks: Structural Evaluation, Open Challenges, and Proposed Solutions | There is a rapid increase in online social networks (OSN) due to the development of information and communication technologies (ICT). People around the globe are adopting the new OSN to keep in touch with friends and family members, to remain updated with the latest trends and news, etc. In almost every OSN, few influential users are active and attract other members and make clusters. Many users connect with these influential users to remain in touch with the latest ongoing trends as the influential nodes come up with the latest news. In this work, the structural analysis of the Facebook network is undergone. The influential nodes have been identified based on betweenness centrality (BC) and degree centrality (DC) measures. Further, community detection has been made in the whole network especially around the influential nodes. Upon filtration of four top-ranked nodes selected based on the high value of BC and DC, only 22.75% nodes and 8.87% remain in the network. Hence, there is a big question about the sustainability of OSN. | Rehman, Ateeq Ur; Tariq, Rizwan; Rehman, Abdul; Paul, Anand | Hohai Univ, Coll IoT Engn, Changzhou Campus, Changzhou, Peoples R China; Univ Kuala Lumpur BMI, Dept Elect Engn, Kuala Lumpur, Malaysia; Natl Power Construct Corp Ltd, Dubai Branch, Dubai, U Arab Emirates; Kyungpook Natl Univ, Dept Comp Sci & Engn, Daegu, South Korea | Rehman, Abdul/D-5630-2019; REHMAN, ATEEQ UR/AAI-6344-2020; Paul, Anand/V-6724-2017 | 57210246601; 57201899988; 57200894071; 56650522400 | ateeq661_edu@yahoo.com;engr.rizwan101@gmail.com;a.rehman.iiui@gmail.com;paul.editor@gmail.com; | 2020 IEEE GLOBECOM WORKSHOPS (GC WKSHPS) | 2166-0069 | 1.12 | 2025-06-25 | 8 | 8 | Online social network; Betweenness Centrality; Degree Centrality; Social Internet of Things; Community Detection | SYSTEM; NUMBER | Betweenness Centrality; Community Detection; Degree Centrality; Online social network; Social Internet of Things | Social sciences computing; Betweenness centrality; Community detection; Degree centrality; Influential users; Information and Communication Technologies; On-line social networks; Online social networks (OSN); Structural evaluation; Social networking (online) | English | 2020 | 2020 | 10.1109/gcwkshps50303.2020.9367407 | 바로가기 | 바로가기 | 바로가기 | |||||||||||
| ○ | ○ | Proceedings Paper | Colorectal Cancer Image Segmentation and Classification with Deep Neural Network Based on Information Theory | Colorectal cancer (CRC) is the development of cancer from the colon or rectum. Microsatellite instability (MSI) status can be considered as an indicator to predict the prognosis of CRC. We employ MSI prediction of CRC image by designing a neural network model of which base network is DeepLabv3+ with OctaveResNet. Additionally, we add a channel sort module to divide a feature map along with channel intensity. Then each feature map goes through distinct convolution paths. Each convolution path is designed based on information theory: the most important feature goes through the lightest convolution path, vice versa. By dividing feature map and applying different amount of convolutional operation, the model can extract features efficiently. In the experiment, total model weight is reduced but accuracy increases. | Kim, Hwa-Rang; Kim, Kwang-Ju; Lim, Kil-Taek; Choi, Doo-Hyun | Kyungpook Natl Univ, Grad Sch Elect & Elect Engn, Sch Elect Engn, Daegu, South Korea; Elect & Telecommun Res Inst, Daegu, South Korea | ; Kim, Hyeong-U/AAV-2668-2021 | 57221832146; 57208557328; 7403175725; 7401642881 | khr1393@knu.ac.kr;kwangju@etri.re.kr;ktl@etri.re.kr;dhc@ee.knu.ac.kr; | 2020 IEEE INTERNATIONAL CONFERENCE ON BIOINFORMATICS AND BIOMEDICINE | 2156-1125 | 2156-1133 | 0.23 | 2025-06-25 | 2 | 3 | CRC; MSI; DeepLabv3+; OctaveResNet; Information theory | CRC; DeepLabv3+; Information theory; MSI; OctaveResNet | Bioinformatics; Classification (of information); Color image processing; Convolution; Deep neural networks; Diseases; Image classification; Image segmentation; Information theory; Colorectal cancer; Colorectal cancers (CRC); Feature map; Important features; Microsatellite instability; Model weights; Neural network model; Neural networks | English | 2020 | 2020 | 10.1109/bibm49941.2020.9313157 | 바로가기 | 바로가기 | 바로가기 | |||||||||||
| ○ | Article | Combined treatment of surgery and sclerotherapy for sinus pericranii | Sinus pericranii is a rare vascular anomaly characterized by abnormal venous communication be-tween the inner and outer regions of the cranial cavity. Here, we report a case of sinus pericranii and venous malformations in the right periorbital region of a 2-year-old girl. Radiologic findings showed venous malformations in the right parietal region communicating with the superior sagittal sinus in the intracranial region. There were notable improvements following surgical resection for the abnormal venous lesions and several sclerotherapies. Presence of a bluish and pulsating mass on the scalp, which showed bruit on auscultation, may indicate sinus pericranii, which should be included in the differential diagnosis. © 2020 Korean Cleft Palate-Craniofacial Association. | Ryu, Jeong Yeop; Lee, Jong Ho; Lee, Joon Seok; Lee, Jeong Woo; Lee, Seok Jong; Lee, Jong Min; Lee, Sang Yub; Huh, Seung; Kim, Ji Yoon; Hwang, Sung Kyoo; Chung, Ho Yun | Departments of Plastic and Reconstructive Surgery, School of Medicine, Kyungpook National University, Daegu, South Korea; Departments of Plastic and Reconstructive Surgery, School of Medicine, Kyungpook National University, Daegu, South Korea; Departments of Plastic and Reconstructive Surgery, School of Medicine, Kyungpook National University, Daegu, South Korea; Departments of Plastic and Reconstructive Surgery, School of Medicine, Kyungpook National University, Daegu, South Korea; Departments of Dermatology, School of Medicine, Kyungpook National University, Daegu, South Korea; Departments of Radiology, School of Medicine, Kyungpook National University, Daegu, South Korea; Departments of Radiology, School of Medicine, Kyungpook National University, Daegu, South Korea; Departments of Surgery, School of Medicine, Kyungpook National University, Daegu, South Korea; Departments of Pediatrics, School of Medicine, Kyungpook National University, Daegu, South Korea; Departments of Neurosurgery, School of Medicine, Kyungpook National University, Daegu, South Korea; Departments of Plastic and Reconstructive Surgery, School of Medicine, Kyungpook National University, Daegu, South Korea, Cell & Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, South Korea | 56366349400; 57212661146; 56496041000; 55892173700; 56013454400; 55689919700; 56016177400; 7101832929; 57205408095; 8568620500; 7404007181 | hy-chung@knu.ac.kr; | Archives of Craniofacial Surgery | 2287-1152 | 21 | 2 | 0.88 | 2025-06-25 | 6 | Head; Plastic; Sclerotherapy; Sinus pericranii; Surgery; Vascular malformations | English | Final | 2020 | 10.7181/acfs.2019.00521 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | Conference paper | Compact dual-band hexagonal ring antenna with shorting pins for RFID reader applications | This paper reports a compact square-shaped microstrip patch antenna covering 0.9 GHz and 2.4 GHz bands for radio frequency identification (RFID) reader applications. The proposed antenna is a two-layered structure comprised of a hexagonal ring patch on the top and a slotted square patch on the bottom. The compactness is achieved by using four shorting pins at appropriate locations. The simulated results show that the antenna exhibits impedance bandwidth (S11 <-10 dB) of 16.33 % and 6.25 % in the ultra-high frequency (0.9 GHz) and industrial, scientific and medical (2.4 GHz) bands, respectively. The shorting pins also enhance the resonating bandwidth and gain of the proposed RFID antenna. Regardless of very low-profile, the gain values at 0.9 GHz and 2.45 GHz are 5.55 dB and 8.38 dB, respectively. © 2020 IEEE. | Bajaj, Chandni; Upadhyay, Dharmendra Kumar; Kumar, Sachin; Kanaujia, Binod Kumar | University of Delhi, Faculty of Technology, New Delhi, India; Netaji Subhas University of Technology, Division of Electronics and Communication Engineering, New Delhi, India; Kyungpook National University, School of Electronics Engineering, Daegu, South Korea; Jawaharlal Nehru University, School of Computational and Integrative Sciences, New Delhi, India | 57216688053; 35103650800; 56907994000; 56962785800 | 2020 7th International Conference on Signal Processing and Integrated Networks, SPIN 2020 | 1.24 | 2025-06-25 | 5 | Antenna; Compact; Reader; RFID | Bandwidth; Electric impedance; Microstrip antennas; Mobile antennas; Radio frequency identification (RFID); Signal processing; Slot antennas; Structure (composition); Hexagonal rings; Impedance bandwidths; Micro-strip patch antennas; Radio-frequency identification readers; Simulated results; Square patches; Two-layered structures; Ultra-high frequency; Microwave antennas | English | Final | 2020 | 10.1109/spin48934.2020.9071349 | 바로가기 | 바로가기 | |||||||||||||||||||
| ○ | Article | Comparative analysis and monitoring of tool wear in carbon fiber reinforced plastics drilling | Recently, carbon fiber-reinforced plastic (CFRP) has been attracting much attention in various industries because of its beneficial properties such as excellent strength, modulus per unit density, and anti-corrosion properties. However, there are several issues in its application to various fields. Severe tool wear issues in its machining have been noted as one of the most serious problems because it induces various serious machining failures such as delamination and splintering. In this regard, timely tool replacement is essential for reducing the influence of tool wear. In this study, tool wear, especially flank wear, in the CFRP drilling was investigated and monitored. First, the reproducibility of tool wear under the same machining condition was experimentally evaluated. And it is demonstrated that tool wear may remarkably differ even though the same machining condition is applied to the tools. Then, tool wear monitoring based on the feed motor torque was applied to the detection of tool life ending in the CFRP drilling process. Consequently, it was demonstrated that the average and maximum detection error of the tool life end were less than 7 and 14%, respectively. Copyright © The Korean Society for Precision Engineering. | Kim, Kyeong Bin; Seo, Jang Hoon; Kim, Tae-Gon; Jun, Martin Byung-Guk; Jeong, Young Hun | Department of Mechanical Engineering, Graduate School, Kyungpook National University, South Korea; Department of Mechanical Engineering, Graduate School, Kyungpook National University, South Korea; Korea Institute of Industrial Technology, South Korea; School of Mechanical Engineering, Purdue University, United States; School of Mechanical Engineering, Kyungpook National University, South Korea | 57221132852; 12791073600; 58261187200; 24587060000; 56501196300 | yhjeong@knu.ac.kr; | Journal of the Korean Society for Precision Engineering | 1225-9071 | 37 | 11 | 0.08 | 2025-06-25 | 1 | Carbon fiber reinforced plastics; Drilling; Feed motor torque; Monitoring; Tool wear | Korean | Final | 2020 | 10.7736/jkspe.020.091 | 바로가기 | 바로가기 | ||||||||||||||||
| ○ | ○ | Article | Comparative analysis of restraint stress-induced depressive-like phenotypes in C57BL/6N mice derived from three different sources | C57BL/6NKorl mice are a novel mouse stock recently developed by the National Institute of Food and Drug Safety Evaluation in Korea. Extensive research into the nature of C57BL/6NKorl mice is being conducted. However, there is no scientific evidence for the phenotypic response to restraint stress (RST), a stress paradigm for modeling depressive disorders, in rodents. In this study, we investigated the repeated RST-induced depressive-like phenotypes in C57BL/6 N mouse substrains (viz., C57BL/6NKorl mice from Korea, C57BL/6NA mice from the United States, and C57BL/6NB mice from Japan) obtained from different sources. The results showed that C57BL/6 N mice derived from various sources exposed to repeated RST resulted in depressive-like phenotypes reflected by a similar degree of behavioral modification and susceptibility to oxidative stress in a duration-dependent manner, except for the distinctive features (increased body weight (BW) and tolerance to the suppression of BW gain by exposure to repeated RST) in C57BL/6NKorl mice. Taken together, the duration-dependent alteration in depressive-like phenotypes by repeated exposure to RST observed in this study may provide valuable insights into the nature of C57BL/6NKorl mice as an alternative animal resource for better understanding of the etiology of depressive disorders and the mechanisms of antidepressant actions. | Hwang, Dong-Joo; Kwon, Ki-Chun; Hwang, Dae-Youn; Seo, Min-Soo; Kim, Kil-Soo; Jung, Young-Suk; Cho, Joon-Yong | Korea Natl Sport Univ, Exercise Biochem Lab, Seoul, South Korea; Pusan Natl Univ, Life & Ind Convergence Res Inst, Coll Nat Resources & Life Sci, Dept Biomat Sci, Busan, South Korea; Daegu Gyeongbuk Med Innovat Fdn, Lab Anim Ctr, Daegu, South Korea; Kyungpook Natl Univ, Coll Vet Med, Daegu, South Korea; Pusan Natl Univ, Coll Pharm, Busan, South Korea | Kim, Seung/N-5248-2019 | 57194417280; 57222182501; 26325632700; 35254332100; 35272034300; 56428348300; 7403535804 | chojy86@knsu.ac.kr; | LABORATORY ANIMAL RESEARCH | 1738-6055 | 2233-7660 | 36 | 1 | 0.21 | 2025-06-25 | 9 | 9 | C57BL; 6NKorl mice; Depressive disorder; Restraint stress | SUSCEPTIBILITY; DORSAL; TISSUE; LEVEL | C57BL/6NKorl mice; Depressive disorder; Restraint stress | English | 2020 | 2020-08-26 | 10.1186/s42826-020-00062-0 | 바로가기 | 바로가기 | 바로가기 | |||||||||
| ○ | ○ | Article | Comparing the neurologic outcomes of patients with out-of-hospital cardiac arrest according to prehospital advanced airway management method and transport time interval | Objective The incidences of prehospital advanced airway management by emergency medical technicians in South Korea are increasing; however, whether this procedure improves the survival outcomes of patients experiencing out-of-hospital cardiac arrest remains unclear. The present study aimed to investigate the association between prehospital advanced airway management and neurologic outcomes according to a transport time interval (TTI) using the Korean Cardiac Arrest Research Consortium database. Methods We retrospectively analyzed the favorable database entries that were prospectively collected between October 2015 and December 2016. Patients aged 18 years or older who experienced cardiac arrest that was presumed to be of a medical etiology and that occurred prior to the arrival of emergency medical service personnel were included. The exposure variable was the type of prehospital airway management provided by emergency medical technicians. The primary endpoint was a favorable neurologic outcome. Results Of 1,871 patients who experienced out-of-hospital cardiac arrest, 785 (42.0%), 121 (6.5%), and 965 (51.6%) were managed with bag-valve-mask ventilation, endotracheal intubation (ETI), and supraglottic airway (SGA) devices, respectively. SGAs and ETI provided no advantage in terms of favorable neurologic outcome in patients with TTIs >= 12 minutes (odds ratio [OR], 1.37; confidence interval [CI], 0.65-2.87 for SGAs; OR, 1.31; CI, 0.30-5.81 for ETI) or in patients with TTI < 12 minutes (OR, 0.57; CI, 0.31-1.07 for SGAs; OR, 0.63; CI, 0.12-3.26 for ETI). Conclusion Neither the prehospital use of SGA nor administration of ETI was associated with superior neurologic outcomes compared with bag-valve-mask ventilation. | Kim, Sol; Lee, Dong Eun; Moon, Sungbae; Ahn, Jae Yun; Lee, Won Kee; Kim, Jong Kun; Park, Jungbae; Ryoo, Hyun Wook | Kyungpook Natl Univ, Sch Med, Dept Emergency Med, 680 Gukchaebosang Ro, Daegu 41944, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Med Res Collaborat Ctr, Daegu, South Korea | Lee, Dong Eun/HTN-4501-2023; Kim, Joo/JAZ-0897-2023; Park, Jae Yong/ISS-5916-2023; Ahn, Jae Yun/N-2652-2017 | 57216417715; 57202299238; 57191584601; 56937505400; 22953484700; 55915816900; 57189030435; 55350557500 | delee@knu.ac.kr;ryoo@knu.ac.kr; | CLINICAL AND EXPERIMENTAL EMERGENCY MEDICINE | CLIN EXP EMERG MED | 2383-4625 | 7 | 1 | ESCI | EMERGENCY MEDICINE | 2020 | N/A | 0.31 | 2025-06-25 | 3 | 2 | Airway management; Emergency medical services; Intubation; intratracheal; Out-of-hospital cardiac arrest | 2015 KOREAN GUIDELINES; ADVANCED LIFE-SUPPORT; CARDIOPULMONARY-RESUSCITATION; ENDOTRACHEAL INTUBATION; LARYNGEAL TUBE; IMPACT; SURVIVAL; ASSOCIATION | Airway management; Emergency medical services; Intratracheal; Intubation; Out-of-hospital cardiac arrest | epinephrine; adult; aged; airway; Article; brain function; emergency health service; emergency medicine; endotracheal intubation; female; hospital discharge; human; major clinical study; male; out of hospital cardiac arrest; patient transport; rescue personnel; respiration control; resuscitation; retrospective study; survival rate; traffic and transport | English | 2020 | 2020-03 | 10.15441/ceem.19.002 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | Article | Comparison among three different steroid therapies for idiopathic sudden sensorineural hearing loss | Background and Objectives The optimal dose or type of systemic steroid for treating idiopathic sudden sensorineural hearing loss (ISSNHL) is unclear. Herein, we compare the efficacy of three steroid treatment protocols. Subjects and Method We reviewed the medical records of 140 adult ISSNHL patients from a tertiary medical center. The patients were divided into three groups based on their treatment regimen: Group 1 received intravenous 10 mg/day dexamethasone combined with intratympanic (IT) steroid injection, followed by prednisolone for 5 days after discharge; Group 2 received 10 mg/day dexamethasone for 5 days, followed by 5 mg/day for 5 days over a 10-day hospitalization period; and Group 3 received 10 mg/day dexamethasone combined with IT steroid injection during a 5-day hospital stay, followed by 5 mg/day dexamethasone for 5 days after discharge. The hearing thresholds were measured using an automatic audiometer at 0.5, 1, 2, 3, 4, and 8 kHz. Hearing recovery on Day 90 was categorized according to Siegel's criteria. Results Univariate and multivariate analyses showed that patients in Group 3 had the lowest hearing thresholds, and the best results for speech reception threshold and speech discrimination scores. The impact of favorable thresholds in Group 3 was better among patients with a baseline average hearing threshold of <70 dB. Complete recovery was more likely in Group 3 than in the other groups, based on the odds ratios. Conclusion Administration of dexamethasone-based systemic steroid combined with IT steroid injection and a relatively long hospitalization period produced the most favorable result. © 2020 Korean Journal of Otorhinolaryngology-Head and Neck Surgery. | Jung, Da Jung; Lee, JiHoon; Yoo, Myung Hoon; Lee, Kyu-Yup | Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, Kyungpook National University, Daegu, South Korea; Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, Kyungpook National University, Daegu, South Korea | 57220970862; 57221093289; 22956750000; 22135779500 | kylee@knu.ac.kr; | Korean Journal of Otorhinolaryngology-Head and Neck Surgery | 2092-6529 | 63 | 11 | 0 | 2025-06-25 | 0 | Dexamethasone; Intratympanic injection; Sudden sensorineural hearing loss | English | Final | 2020 | 10.3342/kjorl-hns.2020.00066 | 바로가기 | 바로가기 |
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