636,442 results match your criteria: "Korea. ; Department of Orthopedic Surgery SMG-SNU Boramae Medical Center[Affiliation]"
Microorganisms
December 2024
Advanced Institute of Convergence Technology, Suwon 16229, Republic of Korea.
The lipid content of nine dinoflagellates was analyzed using flow cytometry to compare lipid levels. Additionally, the correlation between lipid content, cell size, and carbon content in dinoflagellates was evaluated using BODIPY 505/515 staining. The flow cytometry side scatter (SSC) effectively represented relative cell size, showing a linear relationship with the equivalent spherical diameter (ESD).
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December 2024
Jeonju AgroBio-Materials Institute (JAMI), Jeonju-si 54810, Republic of Korea.
This study evaluated the probiotic potential of lactic acid bacteria (LAB) isolated from fermented milk and soymilk products purchased from local markets. The LAB strains were assessed for acid and bile resistance, antibiotic resistance, and adhesion to human intestinal epithelial models. (JAMI_LB_02) and (JAMI_LB_05) showed the highest survival rates in artificial gastric and bile juices, at 87.
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December 2024
Department of Laboratory Medicine, Korea University Anam Hospital, Korea University College of Medicine, Seoul 02841, Republic of Korea.
Background: Accurate and timely diagnosis of mycobacterial infections, including complex (MTBC) and nontuberculous mycobacteria (NTM), is crucial for effective disease management.
Methods: This study evaluated the performance of the NeoPlex TB/NTM-5 Detection Kit (NeoPlex assay, Seongnam, Republic of Korea), a multiplex real-time PCR assay that incorporates melting curve analysis, compared with the line-probe assay (LPA). The NeoPlex assay could simultaneously detect and differentiate MTBC from five other NTM species: , , , , and .
Microorganisms
December 2024
Research Group of Traditional Food, Korea Food Research Institute, Iseo-myeon, Wanju-gun 55365, Jeollabuk-do, Republic of Korea.
Yeast formulations such as dry yeast are essential for supplying microbial starters to the alcoholic beverage industry. In Korea, the expensive freeze-drying method is used to manufacture brewer's dry yeast, and therefore an economical process such as fluidized bed drying is needed. In the dry yeast manufacturing process, the medium and drying conditions are key factors that determine its quality and manufacturing cost.
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January 2025
Department of Semiconductor System Engineering, Sejong University, Seoul 05006, Republic of Korea.
In this article, resonance phenomena of high-speed interconnects and power delivery networks in glass packages are measured and analyzed. The resonances are generated in the interconnection by the physical dimension, cancelation of reactance components, and modes. When the resonances are generated in the operation frequency band, the signal/power integrity of the interconnect can be affected.
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January 2025
Department of Mechanical Engineering, Soongsil University, 369 Sangdo-ro, Dongjak-Gu, Seoul 06978, Republic of Korea.
Carbon-based polymer composites are widely used in wearable devices due to their exceptional electrical conductivity and flexibility. However, their temperature-dependent resistance variations pose significant challenges to device safety and performance. A negative temperature coefficient (NTC) can lead to overcurrent risks, while a positive temperature coefficient (PTC) compromises accuracy.
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January 2025
Department of Artificial Intelligence, Hanyang University, Seoul 04763, Republic of Korea.
Electromagnetic devices are a continuous driving force in cutting-edge research and technology, finding applications in diverse fields such as optics [...
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January 2025
Department of Radio and Information Communications Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea.
This paper presents a W-band power amplifier monolithic microwave integrated circuit (MMIC) that is designed for high-precision millimeter-wave systems and fabricated using a 0.1 µm GaAs pHEMT process. The amplifier's stability was evaluated using the network determinant function, ensuring robust performance under both linear and nonlinear conditions.
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January 2025
Biohybrid Systems Research Center (BSRC), Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea.
Microfluidics and biochip technologies continue to play a key role in driving innovation across biomedical, environmental and engineering disciplines [...
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January 2025
Department of Electronic Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.
The growing demand for high-speed data transfer and ultralow latency in wireless networks-on-chips (WiNoC) has spurred exploration into innovative communication paradigms. Recent advancements highlight the potential of the terahertz (THz) band, a largely untapped frequency range, for enabling ultrafast tera-bit-per-second links in chip multiprocessors. However, the ultrashort duration of THz pulses, often in the femtosecond range, makes synchronization a critical challenge, as even minor timing errors can cause significant data loss.
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December 2024
School of Electrical and Electronic Engineering, Pusan National University, Busan 46241, Republic of Korea.
We demonstrated 3.3 kV silicon carbide (SiC) PiN diodes using a trenched ring-assisted junction termination extension (TRA-JTE) with PN multi-epitaxial layers. Multiple P rings and width-modulated multiple trenches were utilized to alleviate electric-field crowding at the edges of the junction to quantitively control the effective charge (Q) in the termination structures.
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December 2024
Electronic Convergence Division, Korea Institute of Ceramic Engineering & Technology, 101, Soho-Ro, Jinju 52851, Republic of Korea.
Developing thin-film sheets made of oxide-based solid electrolytes is essential for fabricating surface-mounted ultracompact multilayer oxide solid-state batteries. To this end, solid-electrolyte slurry must be optimized for excellent dispersibility. Although oxide-based solid electrolytes for multilayer structures require sintering, high processing temperatures cause problems such as Li-ion volatilization and reactions with graphite anodes.
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December 2024
Department of Mechanical Engineering, Inha University, Incheon 22212, Republic of Korea.
The application of smart materials in robots has attracted considerable research attention. This study developed an inchworm robot that integrates smart materials and a bionic design, using the unique properties of magnetorheological elastomers (MREs) to improve the performance of robots in complex environments, as well as their adaptability and movement efficiency. This research stems from solving the problem of the insufficient adaptability of traditional bionic robots on different surfaces.
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December 2024
Department of Foundry Engineering, Dankook University, Yongin 16890, Republic of Korea.
This paper presents a novel approach to fabricate substrate integrated waveguides (SIWs) on glass substrates with tin (Sn) through glass vias (TGVs) tailored for millimeter-wave applications. The fabrication process employs a custom-designed vacuum suctioning system to rapidly fill precise TGV holes in the glass substrate, which are formed by wafer-level glass reflow micromachining techniques with molten tin in a minute. This method offers a very fast and cost-effective alternative for complete via filling without voids compared to the conventional metallization techniques such as electroplating or sputtering.
View Article and Find Full Text PDFGenes (Basel)
January 2025
Floriculture Research Division, National Institute of Horticultural & Herbal Science, Rural Development Administration, Wanju 55365, Republic of Korea.
Background/objectives: Chrysanthemum (), a key ornamental and medicinal plant, presents challenges in cultivar identification due to high phenotypic similarity and environmental influences. This study assessed the genetic diversity and discrimination of 126 spray-type chrysanthemum cultivars.
Methods: About twenty-three simple sequence repeat (SSR) markers were screened for the discrimination of 126 cultivars, among which six SSR markers showed polymorphic fragments.
Genes (Basel)
January 2025
The Cornea Dystrophy Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemungu, Seoul 03722, Republic of Korea.
(1) Background: The phenotypes of classic lattice corneal dystrophy (LCD) and granular corneal dystrophy type 2 (GCD2) that result from abnormalities in gene () have previously been described. The phenotype of compound heterozygous classic LCD and GCD2, however, has not yet been reported. (2) Case report: A 39-year-old male (proband) presented to our clinic complaining of decreased vision bilaterally.
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January 2025
Division of Applied Life Science (BK21 Four), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju 52828, Republic of Korea.
: Abiotic stresses such as salinity and drought significantly constrain crop cultivation and affect productivity. Quinoa ( Willd.), a facultative halophyte, exhibits remarkable tolerance to drought and salinity stresses, making it a valued model for understanding stress adaptation mechanisms.
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December 2024
Department of Pediatric Dentistry & DRI, School of Dentistry, Seoul National University, Seoul 03080, Republic of Korea.
Background/objectives: The ectodysplasin A () gene, a member of the tumor necrosis factor ligand superfamily, is involved in the early epithelial-mesenchymal interaction that regulates ectoderm-derived appendage formation. Numerous studies have shown that mutations in the gene can cause X-linked ectodermal dysplasia (ED) and non-syndromic oligodontia (NSO). Accordingly, this study aimed to identify the causative genetic mutations of the gene.
View Article and Find Full Text PDFBiomolecules
January 2025
Department of Microbiology, Pukyong National University, 45 Yongso-ro, Nam-Gu, Busan 48513, Republic of Korea.
The species (Cuvier, 1829) is the only representative of the family Niphonidae and the genus , and its taxonomic history is complicated; it is still unclear in a phylogenetic sense. In this study, we report the complete mitochondrial genome of (OP391482), which was determined to be 16,503 bp long with biased A + T contents (53.8%) using next-generation technology.
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December 2024
Cancer Metastasis Branch, Research Institute, National Cancer Center, Goyang 10408, Republic of Korea.
Metastatic cancer accounts for most cancer-related deaths, and identifying specific molecular targets that contribute to metastatic progression is crucial for the development of effective treatments. Hypoxia, a feature of solid tumors, plays a role in cancer progression by inducing resistance to therapy and accelerating metastasis. Here, we report that CCAAT/enhancer-binding protein beta (C/EBPβ) transcriptionally regulates () and thus promotes migration and invasion of non-small-cell lung cancer (NSCLC) cells under hypoxic conditions.
View Article and Find Full Text PDFAntibiotics (Basel)
January 2025
Developmental and Reproductive Toxicology Research Group, Korea Institute of Toxicology, Daejeon 34114, Republic of Korea.
The rising threat of antimicrobial resistance (AMR) is a global concern in both human and veterinary medicine, with multidrug-resistant (MDR) pathogens such as and presenting significant challenges. : This study evaluates the effectiveness of amoxicillin against these MDR pathogens in canine isolates using pharmacokinetic and pharmacodynamic parameters. : Minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), and mutation prevention concentration (MPC) were assessed.
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January 2025
Department of Food Science and Biotechnology, Research Institute of Food and Biotechnology, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea.
is a significant cause of food poisoning. Broad-spectrum antibiotics, commonly used to control , are becoming less effective due to the rise of antibiotic-resistant strains, necessitating alternative control strategies. A -infecting bacteriophage, Dolk21, and its endolysin, PlyDolk21, were isolated and characterized.
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January 2025
Department of Chemistry and Biosciences, Srinivasa Ramanujan Centre, SASTRA Deemed University, Kumbakonam 612001, India.
Multidrug-resistant infections pose a critical challenge to healthcare systems, particularly in nosocomial settings. This drug-resistant bacterium forms biofilms and produces an array of virulent factors regulated by quorum sensing. In this study, metal-tolerant bacteria were isolated from a metal-contaminated site and screened for their ability to synthesize multifunctional nanocomposites (NCs).
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December 2024
Department of Forest Products and Biotechnology, Kookmin University, Seoul 02707, Republic of Korea.
Inhibiting biofilm formation without killing cells facilitates the physical removal of contaminating bacteria while minimizing the opportunity for resistant bacteria to emerge. The . methanolic seed extract contained 1.
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December 2024
Laboratory of Aquatic Biomedicine, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Republic of Korea.
The growing threat of antimicrobial resistance (AMR), exacerbated by the COVID-19 pandemic, highlights the urgent need for alternative treatments such as bacteriophage (phage) therapy. Phage therapy offers a targeted approach to combat bacterial infections, particularly those resistant to conventional antibiotics. This study aimed to standardize an agar plate method for high-mix, low-volume phage production, suitable for personalized phage therapy.
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