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Entanglement properties of disordered quantum spin chains with long-range antiferromagnetic interactions

Physical Review B 2020年第21期102卷 214201-214201页

作者： Y. Mohdeb J. Vahedi N. Moure A. Roshani Hyun-Yong Lee R. N. Bhatt Stefan Kettemann Stephan Haas Department of Physics and Earth Sciences Jacobs University Bremen Bremen 28759 Germany Technische Universität Braunschweig Institut für Mathematische Physik Mendelssohnstr. 3 38106 Braunschweig Germany Department of Physics Sari Branch Islamic Azad University Sari 48164-194 Iran Department of Physics and Astronomy University of Southern California Los Angeles California 90089-0484 USA Department of Applied Physics Graduate School Korea University Sejong 30019 Korea Division of Display and Semiconductor Physics Korea University Sejong 30019 Korea Interdisciplinary Program in EċICT-Culture-Sports Convergence Korea University Sejong 30019 Korea Department of Electrical Engineering Princeton University Princeton New Jersey 08544 USA School of Natural Sciences Institute for Advanced Study Princeton New Jersey 08540 USA Division of Advanced Materials Science Pohang University of Science and Technology (POSTECH) Pohang 790-784 Korea

Entanglement measures are useful tools in characterizing otherwise unknown quantum phases and indicating transitions between them. Here we examine the concurrence and entanglement entropy in quantum spin chains with random long-range couplings, spatially decaying with a power-law exponent α. Using the strong disorder renormalization group (SDRG) technique, we find by analytical solution of the master equation a strong disorder fixed point, characterized by a fixed point distribution of the couplings with a finite dynamical exponent, which describes the system consistently in the regime α>12. A numerical implementation of the SDRG method yields a power-law spatial decay of the average concurrence, which is also confirmed by exact numerical diagonalization. However, we find that the lowest-order SDRG approach is not sufficient to obtain the typical value of the concurrence. We therefore implement a correction scheme which allows us to obtain the leading-order corrections to the random singlet state. This approach yields a power-law spatial decay of the typical value of the concurrence, which we derive both by a numerical implementation of the corrections and by analytics. Next, using numerical SDRG, the entanglement entropy (EE) is found to be logarithmically enhanced for all α, corresponding to a critical behavior with an effective central charge c=ln(2), independent of α. This is confirmed by an analytical derivation. Using numerical exact diagonalization (ED), we confirm the logarithmic enhancement of the EE and a weak dependence on α. For a wide range of partition size l, the EE fits a critical behavior with a central charge close to c=1, which is the same as for the clean Haldane-Shastry model with a power-law-decaying interaction with α=2. Only for small l≪L, in a range which increases with the number of spins N, we find deviations which are rather consistent with the strong disorder fixed point central charge c=ln(2). Furthermore, we find using ED that the conc

关键词： Magnetism Quantum entanglement Disordered systems Doped semiconductors Density matrix methods Exact diagonalization Renormalization group Tensor network methods

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Corrigendum to "Long-term outcome and predictors of vagus nerve stimulation for drug-resistant epilepsy: Real-world evidence from the Korean National Hospital Consortium" [Epilepsy Res. 210 (2025) 107511 0920-1211]

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Epilepsy research 2025年 211卷 107522页

作者： Seo-Young Lee Hyesung Lee Jae-Wook Cho Kyung Wook Kang Jong-Geun Seo Jon Soo Kim Joon-Won Kang Daeyoung Kim Young-Soo Kim Sun Ah Choi Jeonghoon Park Ji Hoon Phi Sang Ook Nam Won Seop Kim Jae-Moon Kim Ki Joong Kim Department of Neurology Kangwon National University Hospital Chuncheon Republic of Korea Interdisciplinary Graduate Program in Medical Bigdata Convergence Kangwon National University Chuncheon Republic of Korea. Department of Biohealth Regulatory Science Sungkyunkwan University Suwon Republic of Korea. Department of Neurology Pusan National University Yangsan Hospital Yangsan Republic of Korea Research Institute for Convergence of Biomedical Science and Technology Pusan National University School of Medicine Yangsan Republic of Korea. Department of Neurology Chonnam National University Hospital Kwangju Republic of Korea. Department of Neurology School of Medicine Kyungpook National University Daegu Republic of Korea. Department of Pediatrics Chungbuk National University Hospital Cheongju Republic of Korea. Department of Pediatrics Chungnam National University Hospital Daejeon Republic of Korea. Department of Neurology Chungnam National University Hospital Daejeon Republic of Korea. Department of Neurology Gyeongsang National University Hospital Jinju Republic of Korea. Department of Pediatrics Ewha Womans University College of Medicine Seoul Republic of Korea. Department of Neurology Kangwon National University Hospital Chuncheon Republic of Korea. Division of Pediatric Neurosurgery Seoul National University Children's Hospital Seoul National University College of Medicine Seoul Republic of Korea. Electronic address: phijh@snu.ac.kr. Department of Pediatrics Pusan National University School of Medicine Pusan Republic of Korea. Electronic address: neuroped@***. Department of Pediatrics Seoul National University College of Medicine Seoul Republic of Korea.

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Corrigendum to "Dual regulatory effects of neferine on amyloid-β and tau aggregation studied by in silico, in vitro, and lab-on-a-chip technology" [Biomed. Pharmacother. 172 (2024) 1-14/116226]

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Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie 2024年 181卷 117686页

作者： Yunkwon Nam Ritu Prajapati Sujin Kim Soo Jung Shin Da Yeon Cheong Yong Ho Park Hyun Ha Park Danyou Lim Yoojeong Yoon Gyudo Lee Hyun Ah Jung Insu Park Dong-Hyun Kim Jae Sue Choi Minho Moon Department of Biochemistry College of Medicine Konyang University 158 Gwanjeodong-ro Seo-gu Daejeon 35365 Republic of Korea. Department of Food and Life Science Pukyong National University Busan 48513 Republic of Korea. Department of Biochemistry College of Medicine Konyang University 158 Gwanjeodong-ro Seo-gu Daejeon 35365 Republic of Korea Research Institute for Dementia Science Konyang University 158 Gwanjeodong-ro Seo-gu Daejeon 35365 Republic of Korea. Department of Biotechnology and Bioinformatics Korea University Sejong 30019 Republic of Korea Interdisciplinary Graduate Program for Artificial Intelligence Smart Convergence Technology Korea University Sejong 30019 Republic of Korea. Department of Biomedical Engineering Konyang University Daejeon 35365 Republic of Korea. Department of Food Science and Human Nutrition Chonbuk National University Jeonju 54896 Republic of Korea. Department of Biomedical Engineering Konyang University Daejeon 35365 Republic of Korea. Electronic address: insupark@konyang.ac.kr. Departments of Pharmacology and Advanced Translational Medicine School of Medicine Konkuk University Seoul 05029 Republic of Korea. Electronic address: mose79@kku.ac.kr. Department of Food and Life Science Pukyong National University Busan 48513 Republic of Korea. Electronic address: choijs@pknu.ac.kr. Research Institute for Dementia Science Konyang University 158 Gwanjeodong-ro Seo-gu Daejeon 35365 Republic of Korea. Electronic address: hominmoon@konyang.ac.kr.

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Correction: Inhibition of IRP2-dependent reprogramming of iron metabolism suppresses tumor growth in colorectal cancer

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Cell communication and signaling : CCS 2024年第1期22卷 480页

作者： Jieon Hwang Areum Park Chinwoo Kim Chang Gon Kim Jaesung Kwak Byungil Kim Hyunjin Shin Minhee Ku Jaemoon Yang Ayoung Baek Jiwon Choi Hocheol Lim Kyoung Tai No Xianghua Zhao Uyeong Choi Tae Il Kim Kyu-Sung Jeong Hyuk Lee Sang Joon Shin Department of Medicine Yonsei University College of Medicine Seoul 03722 Korea. Songdang Institute for Cancer Research Yonsei University College of Medicine Seoul 03722 Korea. Infectious Diseases Therapeutic Research Center Korea Research Institute of Chemical Technology Daejeon 34114 Korea. Department of Chemistry Yonsei University Seoul 03722 Korea. Division of Medical Oncology Department of Internal Medicine Yonsei Cancer Center Yonsei University College of Medicine Seoul 03722 Korea. Department of Radiology Yonsei University College of Medicine Seoul 03722 Korea. Convergence Research Center for Systems Molecular Radiological Science Yonsei University Seoul 03722 Korea. Bioinformatics and Molecular Design Research Center Incheon 21983 Korea. College of Pharmacy Dongduk Women's University Seoul 02748 Korea. The Interdisciplinary Graduate Program in Integrative Biotechnology & Translational Medicine Yonsei University Incheon 21983 Korea. Division of Gastroenterology Department of Internal Medicine Yonsei University College of Medicine Seoul 03722 Korea. Infectious Diseases Therapeutic Research Center Korea Research Institute of Chemical Technology Daejeon 34114 Korea. leeh@krict.re.kr. Songdang Institute for Cancer Research Yonsei University College of Medicine Seoul 03722 Korea. ssj338@yuhs.ac. Division of Medical Oncology Department of Internal Medicine Yonsei Cancer Center Yonsei University College of Medicine Seoul 03722 Korea. ssj338@yuhs.ac. Convergence Research Center for Systems Molecular Radiological Science Yonsei University Seoul 03722 Korea. ssj338@yuhs.ac.

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Author Correction: Highly efficient, heat dissipating, stretchable organic light-emitting diodes based on a MoO3/Au/MoO3 electrode with encapsulation

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Nature communications 2021年第1期12卷 7355页

作者： Dae Keun Choi Dong Hyun Kim Chang Min Lee Hassan Hafeez Subrata Sarker Jun Su Yang Hyung Ju Chae Geon-Woo Jeong Dong Hyun Choi Tae Wook Kim Seunghyup Yoo Jinouk Song Boo Soo Ma Taek-Soo Kim Chul Hoon Kim Hyun Jae Lee Jae Woo Lee Donghyun Kim Tae-Sung Bae Seung Min Yu Yong-Cheol Kang Juyun Park Kyoung-Ho Kim Muhammad Sujak Myungkwan Song Chang-Su Kim Seung Yoon Ryu Division of Display and Semiconductor Physics Display Convergence College of Science and Technology Korea University Sejong Campus Sejong City Republic of Korea. Department of Applied Physics Korea University Sejong Campus Sejong City Republic of Korea. E-ICT-Culture-Sports Convergence Track Korea University Sejong Campus Sejong City Republic of Korea. Division of Display and Semiconductor Physics Display Convergence College of Science and Technology Korea University Sejong Campus Sejong City Republic of Korea. hassaniskt@***. Department of Applied Physics Korea University Sejong Campus Sejong City Republic of Korea. hassaniskt@***. School of Electrical Engineering Korea Advanced Institute of Science and Technology (KAIST) Daejeon Republic of Korea. Department of Mechanical Engineering Korea Advanced Institute of Science and Technology (KAIST) Daejeon Republic of Korea. Department of Advanced Materials Chemistry College of Science and Technology Korea University Sejong Campus Sejong City Republic of Korea. Interdisciplinary Graduate Program for Artificial Intelligence Smart Convergence Technology Korea University Sejong Republic of Korea. Jeonju Center Korea Basic Science Institute (KBSI) Analysis & Researcher Division Jeollabuk-do Republic of Korea. Department of Chemistry Pukyong National University 45 Yongso-Ro Nam-gu Busan Republic of Korea. Department of Physics Chungbuk National University Cheongju Republic of Korea. Surface Materials Division Korea Institute of Materials Science (KIMS) Changwon Republic of Korea. Surface Materials Division Korea Institute of Materials Science (KIMS) Changwon Republic of Korea. cskim1025@kims.re.kr. Division of Display and Semiconductor Physics Display Convergence College of Science and Technology Korea University Sejong Campus Sejong City Republic of Korea. justie74@korea.ac.kr. Department of Applied Physics Korea University Sejong Campus Sejong City Republic of Korea. justie74@korea.ac.kr. E-ICT-Culture-Sports Conve

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Silicone breast implant modification review: Overcoming capsular contracture

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Biomaterials Research 2018年第1期22卷 319-327页

作者： Shin, Byung Ho Kim, Byung Hwi Kim, Sujin Lee, Kangwon Choy, Young Bin Heo, Chan Yeong Seoul National University College of Medicine Department of Biomedical Engineering Seoul 03080 South Korea Seoul National University Department of Transdisciplinary Studies Graduate School of Convergence Science and Technology Seoul 08826 South Korea Seoul National University Interdisciplinary Program for Bioengineering College of Engineering Seoul 08826 South Korea Seoul National University Department of Plastic and Reconstructive Surgery College of Medicine Seoul 03080 South Korea Seoul National University Bundang Hospital Department of Plastic and Reconstructive Surgery Seongnam 13620 South Korea Seoul National University Institute of Medical and Biological Engineering Medical Research Center Seoul 03080 South Korea Advanced Institutes of Convergence Technology Suwon Gyeonggi-do 16229 South Korea

Background: Silicone implants are biomaterials that are frequently used in the medical industry due to their physiological inertness and low toxicity. However, capsular contracture remains a concern in long-term transplantation. To date, several studies have been conducted to overcome this problem. This review summarizes and explores these trends. Main body: First, we examined the overall foreign body response from initial inflammation to fibrosis capsule formation in detail and introduced various studies to overcome capsular contracture. Secondly, we introduced that the main research approaches are to inhibit fibrosis with anti-inflammatory drugs or antibiotics, to control the topography of the surface of silicone implants, and to administer plasma treatment. Each study examined aspects of the various mechanisms by which capsular contracture could occur, and addressed the effects of inhibiting fibrosis. Conclusion: This review introduces various silicone surface modification methods to date and examines their limitations. This review will help identify new directions in inhibiting the fibrosis of silicone implants. © 2018 The Author(s).

关键词： Capsular contracture Fibrosis Foreign body reaction Inflammation Modification Silicone implant

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Correction to: Dietary intervention using (1,3)/(1,6)-β-glucan, a fungus-derived soluble prebiotic ameliorates high-fat diet-induced metabolic distress and alters beneficially the gut microbiota in mice model

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European journal of nutrition 2021年第4期60卷 2273页

作者： Karthika Muthuramalingam Vineet Singh Changmin Choi Seung In Choi Young Mee Kim Tatsuya Unno Moonjae Cho Department of Biochemistry School of Medicine Jeju National University Jeju 63243 Republic of Korea. Faculty of Biotechnology School of Life Sciences SARI Jeju National University Jeju 63243 Republic of Korea. Department of Pharmaceutical Research Institute Quegen Biotech Co. Ltd Seoul 429931 Republic of Korea. Faculty of Biotechnology School of Life Sciences SARI Jeju National University Jeju 63243 Republic of Korea. tatsu@jejunu.ac.kr. Subtropical/Tropical Organism Gene Bank Jeju National University Jeju 63243 Republic of Korea. tatsu@jejunu.ac.kr. Department of Biochemistry School of Medicine Jeju National University Jeju 63243 Republic of Korea. moonjcho@jejunu.ac.kr. Institute of Medical Science Jeju National University Jeju 63241 Republic of Korea. moonjcho@jejunu.ac.kr. Interdisciplinary Graduate Program in Advanced Convergence Technology & Science Jeju National University Jeju 63241 Republic of Korea. moonjcho@jejunu.ac.kr.

A correction to this paper has been published: https://***/10.1007/s00394-021-02537-9

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Volume entropy and generalized Markov system for modelling information flow in a brain graph

arXiv

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arXiv 2018年

作者： Lee, Hyekyoung Kim, Eunkyung Kang, Hyejin Huh, Youngmin Lee, Youngjo Lim, Seonhee Lee, Dong Soo Biomedical Research Institute Seoul National University Hospital Seoul National University Department of Nuclear Medicine Seoul National University Department of Rehabilitation Medicine Seoul National University College of Medicine Seoul National University Data Science for Knowledge Creation Research Center Seoul National University Interdisciplinary Program in Cognitive Science Seoul National University Department of Statistics College of Natural Sciences Seoul National University Department of Molecular Medicine and Biopharmaceutical Sciences College of Medicine or College of Pharmacy Seoul National University Graduate School of Convergence Science and Technology Department of Mathematical Sciences Seoul National University Seoul Korea Republic of Korea Brain Research Institute Daegu Korea Republic of

Entropy is a classical measure to quantify the amount of information or complexity of a system. Various entropy-based measures such as functional and spectral entropies have been proposed in brain network analysis. However, they are less widely used than traditional graph theoretic measures such as global and local efficiencies because either they are not well-defined on a graph or difficult to interpret its biological meaning. In this paper, we propose a new entropy-based graph invariant, called volume entropy. It measures the exponential growth rate of the number of paths in a graph, which is a relevant measure if information flows through the graph forever. We model the information propagation on a graph by the generalized Markov system associated to the weighted edge-transition matrix. We estimate the volume entropy using the stationary equation of the generalized Markov system. A prominent advantage of using the stationary equation is that it assigns certain distribution of weights on the edges of the brain graph, which we call the stationary distribution. The stationary distribution shows the information capacity of edges and the direction of information flow on a brain graph. The simulation results show that the volume entropy distinguishes the underlying graph topology and geometry better than the existing graph measures. In brain imaging data application, the volume entropy of brain graphs was significantly related to healthy normal aging from 20s to 60s. In addition, the stationary distribution of information propagation gives a new insight into the information flow of functional brain graph. Copyright © 2018, The Authors. All rights reserved.

关键词： Entropy

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2-[(Hydroxymethyl)amino]ethanol in water as a preservative: Study of formaldehyde released by Taguchi's method 5

2-[(Hydroxymethyl)amino]ethanol in water as a preservative: ...

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5th International Conference on Chemical and Bioprocess Engineering, ICCBPE 2015

作者： Wisessirikul, W. Loykulnant, S. Montha, S. Fhulua, T. Prapainainar, P. Interdisciplinary Graduate Program in Advanced and Sustainable Environmental Engineering Thailand Advanced Institute of Science and Technology Tokyo Institute of Technology Kasetsart University Bangkok10900 Thailand Natural Rubber Focus Unit National Metal and Materials Technology Center NSTDA 111 Paholyothin Rd. Klong 1 Klong Luang Pathumthani12120 Thailand Environment Research Unit National Metal and Materials Technology Center NSTDA 111 Paholyothin Rd. Klong 1 Klong Luang Pathumthani12120 Thailand National Center of Excellence for Petroleum Petrochemicals and Advance Materials Department of Chemical Engineering Faculty of Engineering Kasetsart University Thailand Center of Excellence of Nanotechnology Kasetsart University Thailand

This research studied the quantity of free formaldehyde released from 2- [(hydroxymethyl)amino]ethanol (HAE) in DI water and natural rubber latex mixture using high-performance liquid chromatography (HPLC) technique. The quantity of formaldehyde retained in the solution was cross-checked by using titration technique. The investigated factors were the concentration of preservative (HAE), pH, and temperature. Taguchi's method was used to design the experiments. The number of experiments was reduced to 16 experiments from all possible experiments by orthogonal arrays (3 factors and 4 levels in each factor). Minitab program was used as a tool for statistical calculation and for finding the suitable condition for the preservative system. HPLC studies showed that higher temperature and higher concentration of the preservative influence the amount of formaldehyde released. It was found that conditions at which formaldehyde was released in the lowest amount were 1.6%w/v HAE, 4 to 40 °C, and the original pH. Nevertheless, the pH value of NR latex should be more than 10 (the suitable pH value was found to be 13). This preservative can be used to replace current preservative systems and can maintain the quality of latex for long-term storage. Use of the proposed preservative system was also shown to have reduced impact on the toxicity of the environment. © Published under licence by IOP Publishing Ltd.

关键词： Formaldehyde

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SU-G-JeP4-14: Assessment of Inter- and Intra-Fractional Motion for Extremity Soft Tissue Sarcoma Patients by Using In-House Real-Time Optical Image-Based Monitoring System

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Medical Physics 2016年第6PART28期43卷 3684-3684页

作者： H Kim I Kim S Ye Interdisciplinary Program in Radiation Applied Life Science College of Medicine Seoul National University Seoul Republic of Korea Dept. of Radiation Oncology Seoul National University Hospital Seoul Republic of Korea Program in Biomedical Radiation Sciences Graduate School of Convergence Science and Technology Seoul National University Seoul Republic of Korea

Purpose: This study aimed to assess inter- and intra-fractional motion for extremity Soft Tissue Sarcoma (STS) patients, by using in-house real-time optical image-based monitoring system (ROIMS) with infra-red (IR) external markers. Methods: Inter- and intra-fractional motions for five extremity (1 upper, 4 lower) STS patients received postoperative 3D conformal radiotherapy (3D-CRT) were measured by registering the image acquired by ROIMS with the planning CT image (REG_ROIMS). To compare with the X-ray image-based monitoring, pre- and post-treatment cone beam computed tomography (CBCT) scans were performed once per week and registered with planning CT image as well (REG_CBCT). If the CBCT scan is not feasible due to the large couch shift, AP and LR on-board imager (OBI) images were acquired. The comparison was done by calculating mutual information (MI) of those registered images. Results: The standard deviation (SD) of the inter-fractional motion was 2.6 mm LR, 2.8 mm SI, and 2.0 mm AP, and the SD of the intra-fractional motion was 1.4 mm, 2.1 mm, and 1.3 mm in each axis, respectively. The SD of rotational inter-fractional motion was 0.6° pitch, 0.9° yaw, and 0.8° roll and the SD of rotational intra-fractional motion was 0.4° pitch, 0.9° yaw, and 0.7° roll. The derived averaged MI values were 0.83, 0.92 for REG_CBCT without rotation and REG_ROIMS with rotation, respectively. Conclusion: The in-house real-time optical image-based monitoring system was implemented clinically and confirmed the feasibility to assess inter- and intra-fractional motion for extremity STS patients while the daily basis and real-time CBCT scan is not feasible in clinic.

关键词： Medical X-ray imaging Cone beam computed tomography Optical devices Three dimensional image processing Tissues Image registration Cancer Radiation therapy

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