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  1. Article

    Open Access

    Kondo screening in a Majorana metal

    Kondo impurities provide a nontrivial probe to unravel the character of the excitations of a quantum spin liquid. In the S = 1/2 Kitaev model on the honeycomb lattice, Kondo impurities embedded in the spin-liquid...

    S. Lee, Y. S. Choi, S.-H. Do, W. Lee, C. H. Lee, M. Lee, M. Vojta in Nature Communications (2023)

  2. No Access

    Article

    Front propagation in both directions and coexistence of traveling fronts and pulses

    For a scalar reaction-diffusion equation, a traveling wave is a special type of solution which as a function of time transforms a higher energy equilibrium state to a lower energy equilibrium state. Thus such ...

    Chao-Nien Chen, Y. S. Choi in Calculus of Variations and Partial Differential Equations (2023)

  3. No Access

    Article

    MUC4 Silencing Inhibits TGF-β1-Induced Epithelial-Mesenchymal Transition via the ERK1/2 Pathway in Human Airway Epithelial NCI-H292 Cells

    MUC4 is a predominant membrane-tethered mucin lubricating and protecting the epithelial surface and playing various biological roles in the renewal and differentiation of epithelial cells, cell signaling, cell...

    Y.-D. Kim, Y. S. Choi, H. G. Na, S.-Y. Song, C. H. Bae in Molecular Biology (2021)

  4. Article

    Open Access

    Dichotomy in temporal and thermal spin correlations observed in the breathing pyrochlore LiGa1−xInxCr4O8

    A breathing pyrochlore system is predicted to host a variety of quantum spin liquids. Despite tremendous experimental and theoretical efforts, such sought-after states remain elusive as perturbation terms and ...

    S. Lee, S.-H. Do, W. Lee, Y. S. Choi, J. van Tol, A. P. Reyes in npj Quantum Materials (2021)

  5. No Access

    Article

    A steepest descent algorithm for the computation of traveling dissipative solitons

    An algorithm is proposed to calculate traveling dissipative solitons for the FitzHugh–Nagumo equations. It is based on the application of the steepest descent method to a certain functional. This approach can ...

    Y. S. Choi, J. M. Connors in Japan Journal of Industrial and Applied Mathematics (2020)

  6. No Access

    Article

    Assessment of CALIOP and MODIS aerosol products over Iran to explore air quality

    Monitoring air quality is crucial for Middle East countries such as Iran, where dust and polluted aerosol sources heavily influence local air quality. The use of active satellite remote sensing techniques is t...

    S. Zahedi Asl, A. Farid, Y.-S. Choi in Theoretical and Applied Climatology (2019)

  7. No Access

    Article

    Robustness of dynamic magnetism in the triangle-based antiferromagnets Ba3Ru1−xIr x Ti2O9 (x = 0.5 and 0.8)

    We report on the spin dynamics of the strong spin-orbit coupled antiferromagnets Ba3Ru1−xIr x Ti2O9 (x = 0.5 and 0.8), which comprise a mixture of edge- and corner-sharing triang...

    W. -J. Lee, S. -H. Do, S. Lee, Y. -S. Choi in Journal of the Korean Physical Society (2018)

  8. No Access

    Article

    Dynamic prognostic value of the revised international prognostic scoring system following pretransplant hypomethylating treatment in myelodysplastic syndrome

    This study aimed to analyze the use of the revised International Prognostic Scoring System (IPSS-R) assessed after hypomethylating treatment (HMT) for patients with myelodysplastic syndrome (MDS) undergoing an...

    S-A Yahng, Y-W Jeon, J-H Yoon, S-H Shin, S-E Lee, Y-S Choi in Bone Marrow Transplantation (2017)

  9. No Access

    Article

    Associations of dietary calcium intake with metabolic syndrome and bone mineral density among the Korean population: KNHANES 2008–2011

    Excessive amount of calcium intake increased risk for metabolic syndrome in men. However, modest amount decreased the risk of metabolic syndrome and osteoporosis in postmenopausal women. Modest amount of calci...

    M. K. Kim, S. J. Chon, E. B. Noe, Y. H. Roh, B. H. Yun in Osteoporosis International (2017)

  10. No Access

    Article

    The effect of prolonged breast-feeding on the development of postmenopausal osteoporosis in population with insufficient calcium intake and vitamin D level

    Breast-feeding affects bone metabolism and calcium homeostasis, and prolonged breast-feeding may influence the development of postmenopausal osteoporosis, particularly in highly susceptible populations. The st...

    B. H. Yun, S. J. Chon, Y. S. Choi, S. Cho, B. S. Lee in Osteoporosis International (2016)

  11. Article

    Open Access

    Raman spectroscopic signature of fractionalized excitations in the harmonic-honeycomb iridates β- and γ-Li2IrO3

    The fractionalization of elementary excitations in quantum spin systems is a central theme in current condensed matter physics. The Kitaev honeycomb spin model provides a prominent example of exotic fractional...

    A. Glamazda, P. Lemmens, S. -H. Do, Y. S. Choi, K. -Y. Choi in Nature Communications (2016)

  12. No Access

    Article

    Modeling of magnetoelastic resonator using h-parameter analysis

    In this paper, an equivalent circuit model for magnetoelastic resonator is introduced. Elements of the model consist of coil inductance, magnetization of the resonator, a parallel RLC resonator representing th...

    Y. S. Choi, J. W. Yoo, S. K. Kauh in Journal of Mechanical Science and Technology (2016)

  13. Article

    Retinal vessel structure measurement using spectral-domain optical coherence tomography

    To assess the reliability and validity of spectral-domain optical coherence tomography (SD-OCT) measurements of retinal vessel lumen diameters and wall thicknesses.

    T H Rim, Y S Choi, S S Kim, M-j Kang, J Oh, S Park, S H Byeon in Eye (2016)

  14. No Access

    Article

    Traveling pulse solutions to FitzHugh–Nagumo equations

    Many patterns emerge from homogeneous media that are destabilized by a spatial modulation. Near such a bifurcation, Turing patterns are more or less uniformly distributed. Besides these regular patterns, parti...

    Chao-Nien Chen, Y. S. Choi in Calculus of Variations and Partial Differential Equations (2015)

  15. No Access

    Article

    An adaptive sliding-mode control technique for three-phase UPS system with auto-tuning of switching gain

    This paper presents an adaptive sliding-mode control (ASMC) technique for a three-phase UPS system with an auto-tuning mechanism of the switching gain. First, a sliding-mode control (SMC) scheme for the three-...

    Y. S. Choi, H. H. Choi, J. W. Jung in Electrical Engineering (2014)

  16. Article

    High intraocular pressure is associated with cardiometabolic risk factors in South Korean men: Korean National Health and Nutrition Examination Survey, 2008–2010

    Elevated intraocular pressure (IOP) contributes to the progression of visual defects such as glaucoma. This study determined whether metabolic syndrome (MetS) and cardiovascular risk factors are associated wit...

    Y-H Kim, S W Jung, G-E Nam, K Do Han, A R Bok, S J Baek, K-H Cho, Y S Choi, S-M Kim in Eye (2014)

  17. No Access

    Article

    Relationship between socioeconomic status and anemia prevalence in adolescent girls based on the fourth and fifth Korea National Health and Nutrition Examination Surveys

    We studied the relationship between socioeconomic status (SES), represented by household income, and the prevalence of anemia and iron deficiency anemia (IDA) among adolescent girls in Korea.

    J Y Kim, S Shin, K Han, K-C Lee, J-H Kim in European Journal of Clinical Nutrition (2014)

  18. No Access

    Article

    Evaluation of Irradiation Effects on Fracture Strength of Silicon Carbide using Micropillar Compression Tests

    Micro-scale material testing techniques (e.g., nanoindentation, micropillar compression, etc.) have been developed and applied for the evaluation of radiation effects on the mechanical properties of nuclear re...

    C. Shin, H.-h. **, H. Sung, D.-J. Kim, Y. S. Choi, K. Oh in Experimental Mechanics (2013)

  19. No Access

    Article

    Tandem high-dose chemotherapy and autologous stem cell transplantation in patients with high-risk neuroblastoma: Results of SMC NB-2004 study

    From January 2004 to December 2008, 50 consecutive patients with high-risk neuroblastoma were assigned to receive tandem HDCT (high-dose chemotherapy)/auto-SCT after nine cycles of induction chemotherapy. CEC ...

    K W Sung, M H Son, S H Lee, K H Yoo, H H Koo, J Y Kim in Bone Marrow Transplantation (2013)

  20. No Access

    Article

    Standing Pulse Solutions to FitzHugh–Nagumo Equations

    Reaction–diffusion systems serve as relevant models for studying complex patterns in several fields of nonlinear sciences. A localized pattern is a stable non-constant stationary solution usually located far a...

    Chao-Nien Chen, Y. S. Choi in Archive for Rational Mechanics and Analysis (2012)

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