Jeonghun Ku, Wongeun Cho, Jae‐Jin Kim, A. Peled, Brenda K. Wiederhold, Mark D. Wiederhold, In Y. Kim, Jang Han Lee, Sun I. Kim,
Patients with schizophrenia have thinking disorders such as delusions or hallucinations because they have a deficit in the ability to systematize and integrate information. Therefore, they cannot integrate or systematize visual, auditory, and tactile stimuli. The multimodal integration model of the brain can provide a theoretical background from which one can approach multimodal stimulus integration. In this study, we suggest a virtual reality system for the multi-modal assessment of cognitive ability ...
Tópico(s): Action Observation and Synchronization
2003 - Mary Ann Liebert, Inc. | CyberPsychology & Behavior
Eun-Ho Kang, Joo Eon Park, Kyung-Han Lee, Young‐Seok Cho, Jae‐Jin Kim, Bum-Hee Yu,
<b><i>Background:</i></b> Panic disorder (PD) is a common and often chronic psychiatric condition that can lead to considerable disability in daily life. Using [<sup>18</sup>F]fluorodeoxyglucose-PET, we examined brain baseline glucose metabolism in PD patients in comparison with normal controls and the changes in glucose metabolism after 12 weeks of escitalopram treatment. <b><i>Methods:</i></b> Fifteen patients with PD were compared to 20 normal ...
Tópico(s): Functional Brain Connectivity Studies
2012 - Karger Publishers | Neuropsychobiology
Kwang‐Pyo Hong, Yong-Kyu Cho, Bong-Cheol Shin, Myeong‐Woo Cho, Seung‐Bok Choi, Won-Seung Cho, Jae-Jin Jae,
In this study, ultraprecise polishing of alumina reinforced zirconia ceramics using magneto rheological (MR) fluids and diamond abrasives was investigated. First, alumina-reinforced zirconia composites, containing 0 to 30 vol% alumina, were fabricated by cold isostatic pressing at 150 MPa. The green compacts were then sintered at 1,550°C for 2 h in air. Mechanical properties and microstructures of the composites were observed. Second, a series of MR polishing experiments were performed for composites ...
Tópico(s): Tunneling and Rock Mechanics
2012 - Taylor & Francis | Materials and Manufacturing Processes
Dong Uk Lee, Kyung Whan Kim, Kwan Weon Kim, Kang Seol Lee, Sang Jin Byeon, Jaehwan Kim, Jin Hee Cho, Jae‐Jin Lee, Jun Hyun Chun,
Motivated by a graphics memory system that achieves multiplied bandwidth by the number of memories per system, HBM DRAM adopts a brand new architecture, with many technical changes and challenges. The first main change in the architecture is the stacked memory structure with TSV array, which has independent bandwidth per slice. The second is semi-independent row, column command interface, which enhances effective performance. For supporting high bandwidth, this chip has fine pitch microbump interface. ...
Tópico(s): Copper Interconnects and Reliability
2014 - Institute of Electrical and Electronics Engineers | IEEE Journal of Solid-State Circuits
Thi Hiep Han, Debananda Mohapatra, Neelima Mahato, Smrutiranjan Parida, Jun Ho Shim, Anh Thi Nguyet Nguyen, Van Quang Nguyen, Moo Hwan Cho, Jae‐Jin Shim,
In this study, highly graphitic nitrogen-doped carbon nano-onions (N-CNOs) were prepared by a one-step, direct, in situ flame synthesis technique and their potential applications as catalysts for oxygen reduction reaction (ORR) in a microbial fuel cell (MFC) were evaluated for the first time. The ORR activity of the CNO, N-CNO, and the commercial Pt/C were measured using a rotating ring-disk electrode (RRDE). The reaction mechanism for the N-CNO was found to follow a four-electron transfer pathway and ...
Tópico(s): Microbial Fuel Cells and Bioremediation
2019 - Elsevier BV | Journal of Industrial and Engineering Chemistry
Byeong‐Hoon Cho, Jae-Jin Yun, Won-Jong Lee,
One of the key technologies for developing three-dimensional (3-D) packaging with vertical interconnection is the interlayer metallization using through-Si vias (TSVs). In the present work, via holes are filled with Cu by using electroplating. The thickness profiles of the seed layers have a significant effect on via filling in the subsequent electroplating process. In this work, Cu seed layers were deposited by ionized metal plasma (IMP) sputtering, which enables more conformal deposition of the seed ...
Tópico(s): Electronic Packaging and Soldering Technologies
2007 - Institute of Physics | Japanese Journal of Applied Physics
Jong Hyun Choi, Hyeonwoo Cho, Jae Jin Jeong, Sang Woo Kim,
An algorithm that introduces a novel scheme for the combination of the two adaptation terms of the affine projection algorithm with different step sizes is proposed. The mixing parameter of the proposed algorithm is determined by minimising the mean-square deviation. The simulation results show that the proposed algorithm has a faster convergence rate and a smaller steady-state error than other existing combination algorithms.
Tópico(s): Speech and Audio Processing
2013 - Institution of Engineering and Technology | Electronics Letters
Bang Wool Eom, Hyuk‐Joon Lee, Moon‐Won Yoo, Jae Jin Cho, Woo Ho Kim, Han‐Kwang Yang, Kuhn Uk Lee,
The purpose of this study is to investigate characteristics of synchronous and metachronous cancer in gastric cancer and to suggest appropriate methods of treatment management.We reviewed 4,593 patients who underwent operations for gastric cancer at Seoul National University Hospital from 1999 to 2005. We selected those patients who had also been diagnosed with another primary cancer and classified patients into three groups according to the date of detection of another primary cancer. We analyzed ...
Tópico(s): Metastasis and carcinoma case studies
2008 - Wiley | Journal of Surgical Oncology
Sang‐Ho Jeong, Hye Sung Ahn, Moon‐Won Yoo, Jae‐Jin Cho, Hyukjoon Lee, Hyung‐Ho Kim, Kuhn‐Uk Lee, Han‐Kwang Yang,
Abstract Background The aim of this study was to investigate possible associations between (i) comorbid disease and (ii) perioperative risk factors and morbidity following radical surgery for gastric cancer. Materials and Methods Consecutive patients (759) undergoing radical gastrectomy and D2 level lymph node dissection for gastric cancer were included. Clinical data concerning patient characteristics, operative methods, and complications were collected prospectively. Results The morbidity rate for ...
Tópico(s): Cardiac, Anesthesia and Surgical Outcomes
2010 - Wiley | Journal of Surgical Oncology
Kyong Su Rho, Lim Jeong, Gene Lee, Byoung‐Moo Seo, Yoon Jeong Park, Seong‐Doo Hong, Sangho Roh, Jae Jin Cho, Won Ho Park, Byung‐Moo Min,
Electrospinning of type I collagen in 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) to fabricate a biomimetic nanofibrous extracellular matrix for tissue engineering was investigated. The average diameter of collagen nanofibers electrospun from 8% collagen solution in HFIP was 460 nm (range of 100–1200 nm). The as-spun collagen nanofibrous matrix was chemically cross-linked by glutaraldehyde vapor with a saturated aqueous solution and then treated with aqueous 0.1 m glycine to block unreacted aldehyde ...
Tópico(s): Collagen: Extraction and Characterization
2005 - Elsevier BV | Biomaterials
Jae-Jin Cho, Brigid Joseph, Baljit S. Sappal, Ranjit K. Giri, Richard Wang, John W. Ludlow, Mark E. Furth, Robert Susick, Sanjeev Gupta,
The availability of well-characterized human liver cell populations that can be frozen and thawed will be critical for cell therapy. We addressed whether human hepatocytes can recover after cryopreservation and engraft in immunodeficient mice.We isolated cells from discarded human livers and studied the properties of cryopreserved cells. The viability of thawed cells was established with multiple in vitro assays, including analysis of liver gene expression, ureagenesis, cytochrome P450 activity, ...
Tópico(s): Pancreatic function and diabetes
2004 - Wiley | Liver International
Sang-Ho Jeong, Moon‐Won Yoo, Hong-Man Yoon, Hyuk‐Joon Lee, Hye Sung Ahn, Jae‐Jin Cho, Hyung‐Ho Kim, Kuhn-Uk Lee, Han‐Kwang Yang,
The present study was conducted to investigate the low compliance rate of the critical pathway (CP) and whether CP is effective for treatment of gastric cancer in radical gastrectomy.The medical records of 631 patients who had undergone radical gastrectomy with D2 lymph node dissection were reviewed. This study compared data from patients in early gastric cancer (EGC) and advanced gastric cancer (AGC) groups, which were further subdivided into general care (non-CP) and CP groups.The mean length of preoperative ...
Tópico(s): Colorectal Cancer Surgical Treatments
2011 - Korean Surgical Society | Journal of the Korean Surgical Society
Yoon Kim, Won Gyoung Kim, Hyuk‐Joon Lee, Mi-Sun Park, Young‐Hee Lee, Jae-Jin Cho, Seong‐Ho Kong, Han‐Kwang Yang,
Purpose: Nutrition status is regarded as an important factor for postoperative morbidity in cancer surgery. The aim of this study was to evaluate the impact of the malnutrition risk, determined by Seoul National University Hospital-Nutrition Screening Index (SNUH-NSI), on operative morbidity after gastrectomy for gastric cancer. Methods: This study enrolled 246 patients who had undergone gastrectomy for gastric cancer at Seoul National University Hospital from March 2009 to February 2010. We collected ...
Tópico(s): Dysphagia Assessment and Management
2011 - Korean Surgical Society | Journal of the Korean Surgical Society
Jae‐Jin Cho, Berthold Hocher, H Herbst, Jidong Jia, Martin Ruehl, Eckhart G. Hahn, E. O. Riecken, Detlef Schuppan,
Background & Aims: Endothelin 1 induces contraction, proliferation, and collagen synthesis of hepatic stellate cells in vitro, which may be mediated via the endothelin A receptor. It is unknown if specific blockade of the endothelin A receptor inhibits hepatic fibrosis in vivo. Methods: Groups of 10-20 rats with bile duct occlusion were treated with the nonpeptide endothelin-A receptor antagonist LU 135252 at 80 mg · kg−1 · day−1 from week 1-6 or from week 4-6, or with LU at 10 mg · kg−1 · day−1 from week ...
Tópico(s): Pediatric Hepatobiliary Diseases and Treatments
2000 - Elsevier BV | Gastroenterology
Jong-Hoon Park, Woong Kyo Jeong, Jin-Hyuck Lee, Jae‐Jin Cho, Dae‐Hee Lee,
Tópico(s): Lower Extremity Biomechanics and Pathologies
2013 - Springer Science+Business Media | Knee Surgery Sports Traumatology Arthroscopy
Jidong Jia, Michael Bauer, Jae Jin Cho, Martin Ruehl, Stefano Milani, G. Boigk, E. O. Riecken, Detlef Schuppan,
Background/Aims: Silymarin reduces hepatic collagen accumulation by 35% in rats with secondary biliary cirrhosis. The aim of the present study was to explore its antifibrotic mechanism. Methods: Thirty female adult Wistar rats were allocated to (1) bile duct occlusion, (2) bile duct occlusion and oral silymarin at 50 mg/kg per day, and (3) sham operation and oral silymarin at 50 mg/kg per day. Steady-state mRNA levels for procollagen α1(I), tissue inhibitor of metalloproteinases-1 (TIMP-1), and transforming ...
Tópico(s): Silymarin and Mushroom Poisoning
2001 - Elsevier BV | Journal of Hepatology
Jongmin Lim, Jae-Jin Cho, Jung‐Jin Kim, Yushin Kim, BumChul Yoon,
Virtual reality (VR) exercises have been investigated as a rehabilitation paradigm to reduce the risk of falling in the elderly. This study aimed to compare a VR program consisted of complex exercises and that of balance exercises. The study was a single-blind, randomized, comparative trial conducted over 5 weeks. Twenty subjects over 65 years of age were divided into a complex exercise with virtual reality (CEVR) group and a balance exercise with virtual reality (BEVR) group. CEVR consisted of strengthening, ...
Tópico(s): Cerebral Palsy and Movement Disorders
2017 - Elsevier BV | European Journal of Integrative Medicine
Jong-Min Lim, Jae-Jin Cho, TaeYeong Kim, BumChul Yoon,
BACKGROUND: Rehabilitation after anterior cruciate ligament (ACL) reconstruction focuses on restoring knee deficiencies and function. However, the extent of the clinician's direct supervision that is required to recover knee function is unknown. OBJECTIVE: To investigate differences in isokinetic k nee strength improvement, endurance, and proprioception between home-based (HBR) and supervised rehabilitation (SR). METHODS: Thirty participants were randomly allocated to each group after reconstruction. ...
Tópico(s): Total Knee Arthroplasty Outcomes
2018 - IOS Press | Journal of Back and Musculoskeletal Rehabilitation
Min Jin Kim, Sun Young Cho, Myeong-Hee Kim, Jae Jin Lee, So Young Kang, Eun‐Hae Cho, Jungwon Huh, Hwi‐Joong Yoon, Tae Sung Park, Wooin Lee, Rolf Marschalek, Claus Meyer,
Although a normal karyotype according to conventional cytogenetic analysis in association with cryptic t(15;17) has been infrequently reported in cases of acute promyelocytic leukemia (APL), a fluorescence in situ hybridization (FISH)-negative cryptic PML–RARA rearrangement is even more rare, with only 12 such APL cases of FISH-negative cryptic PML–RARA rearrangements in the literature. Reported here is an additional clinical APL case with a FISH-negative cryptic PML–RARA rearrangement, confirmed ...
Tópico(s): Acute Myeloid Leukemia Research
2010 - Elsevier BV | Cancer Genetics and Cytogenetics
Won Ho Kim, Dongrae Cho, Boreom Lee, Jae‐Jin Song, Teo Jeon Shin,
Objective Dexmedetomidine (DEX) has been widely used as a sedative, acting as an α2-adrenergic agonist on autoreceptors, presynaptic receptors and postsynaptic receptors without risk of respiratory depression. Although consciousness impairment is closely related to disturbances of brain function in different frequency bands, the time-varying DEX effects on cortical activity in specific frequency bands has not yet been studied. Methods We used electroencephalography (EEG) to analyse differences in ...
Tópico(s): Functional Brain Connectivity Studies
2017 - SAGE Publishing | Journal of International Medical Research
Charmaine Lamiel, Yong Rok Lee, Moo Hwan Cho, Dirk Tůma, Jae‐Jin Shim,
Supercapacitors are an emerging energy-storage system with a wide range of potential applications. In this study, highly porous nickel-cobalt-oxide@reduced graphene oxide (Ni-Co-O@RGO-s) nanosheets were synthesized as an active material for supercapacitors using a surfactant-assisted microwave irradiation technique. The RGO-modified nanocomposite showed a larger specific area, better conductivity, and lower resistivity than the unmodified nanocomposite because the RGO facilitated faster ion diffusion/ ...
Tópico(s): Nanomaterials for catalytic reactions
2017 - Elsevier BV | Journal of Colloid and Interface Science
Yoon‐Hee Cha, Robert W. Baloh, Catherine Cho, Måns Magnusson, Jae‐Jin Song, Michael Strupp, Floris L. Wuyts, Jeffrey P. Staab,
We present diagnostic criteria for mal de débarquement syndrome (MdDS) for inclusion into the International Classification of Vestibular Disorders. The criteria include the following: 1] Non-spinning vertigo characterized by an oscillatory perception (‘rocking,’ ‘bobbing,’ or ‘swaying’) present continuously or for most of the day; 2] Onset occurs within 48 hours after the end of exposure to passive motion, 3] Symptoms temporarily reduce with exposure to passive motion (e.g. driving), and 4] Symptoms persist ...
Tópico(s): Hearing, Cochlea, Tinnitus, Genetics
2020 - IOS Press | Journal of Vestibular Research
Mi-Kyung Kim, Jin‐Hwan Cho, Jae-Jin Lee, Ye-Hwang Cheong, Moon-Ho Son, Kong‐Joo Lee,
Background Agonists of glucagon-like peptide-1 receptor (GLP-1R) and glucokinase activators (GKA) act as antidiabetic agents by their ability protect beta cells, and stimulate insulin secretion. Oxidative and endoplasmic reticulum (ER) stresses aggravate type 2 diabetes by causing beta cell loss. It was shown that GLP-1R agonists protect beta cells from oxidative and ER stresses. On the other hand, little is known regarding how GKAs protect beta cells. We hypothesized that GKAs protect beta cells by ...
Tópico(s): Calcium signaling and nucleotide metabolism
2013 - Public Library of Science | PLoS ONE
Jae-Jin Cho, Harmeet Malhi, Richard Wang, Brigid Joseph, John W. Ludlow, Robert Susick, Sanjeev Gupta,
Tópico(s): Liver physiology and pathology
2002 - Nature Portfolio | Nature Medicine
Mi Kyung Kim, Jin‐Hwan Cho, Jae-Jin Lee, Moon-Ho Son, Kong‐Joo Lee,
Beta cell death caused by endoplasmic reticulum (ER) stress is a key factor aggravating type 2 diabetes. Exenatide, a glucagon-like peptide (GLP)-1 receptor agonist, prevents beta cell death induced by thapsigargin, a selective inhibitor of ER calcium storage. Here, we report on our proteomic studies designed to elucidate the underlying mechanisms. We conducted comparative proteomic analyses of cellular protein profiles during thapsigargin-induced cell death in the absence and presence of exenatide ...
Tópico(s): Pancreatic function and diabetes
2015 - Public Library of Science | PLoS ONE
Jeong‐Ho Seok, Hae‐Jeong Park, Ji‐Won Chun, Seung‐Koo Lee, Hyun Sang Cho, Jun Soo Kwon, Jae‐Jin Kim,
White matter (WM) abnormalities in schizophrenia may offer important clues to a better understanding of the disconnectivity associated with the disorder. The aim of this study was to elucidate a WM basis of auditory hallucinations in schizophrenia through the simultaneous investigation of WM tract integrity and WM density. Diffusion tensor images (DTIs) and structural T1 magnetic resonance images (MRIs) were taken from 15 hallucinating schizophrenic patients, 15 non-hallucinating schizophrenic patients ...
Tópico(s): Botulinum Toxin and Related Neurological Disorders
2007 - Elsevier BV | Psychiatry Research Neuroimaging
Kwang Kon Koh, Hweung Kon Hwang, Pan Gum Kim, Sang Hoon Lee, Sang Kyoon Cho, Sam Soo Kim, Jae Jin Han, Young Tak Lee, Pyo Won Park, Dong Heon Yoon,
Objectives. This study was performed to determine whether there are differences in the operative, histopathologic, angiographic and clinical findings of isolated ostial stenosis between Oriental and western patients. Background. Angiographic, clinical and histologic findings in isolated ostial stenosis have been reported in western but not in Oriental patients. Methods. Six patients, all women (0.88% of a total of 684 patients who underwent coronary angiography between March 1989 and July 1991), ...
Tópico(s): Cardiac Arrhythmias and Treatments
1993 - Elsevier BV | Journal of the American College of Cardiology
Jae Hong Seo, Dae-Yeon Cho, Se-Hyun Ahn, Kyung‐Sik Yoon, Chang-Soo Kang, Hyun Mi Cho, Hyeon Sook Lee, Jae Jin Choe, Chul Won Choi, Byung Soo Kim, Sang Won Shin, Yeul Hong Kim, Jun Suk Kim, Gil‐Soo Son, Jae-Bok Lee, Bum Hwan Koo,
In order to evaluate the role of BRCA1 and BRCA2 germline mutations in Korean patients with sporadic breast cancer, 97 patients with sporadic breast cancer were analyzed for mutations in the BRCA1 and BRCA2 coding regions, by using a combination of fluorescent-conformation sensitive gel electrophoresis (F-CSGE) and direct sequencing. Fifty-five distinct sequence variants were detected, which included three pathogenic truncating mutations, 15 missense mutations, 16 polymorphisms, and 21 intronic variants. ...
Tópico(s): Genomic variations and chromosomal abnormalities
2004 - Wiley | Human Mutation
Young Min Lee, Hanbyul Lee, Yeongseon Jang, Yirang Cho, Gyu-Hyeok Kim, Jae‐Jin Kim,
Abstract Twenty-four Alternaria strains have been isolated from wood samples in Korea and submitted to phylogenetic analyses. The gene trees generated from the ITS and histone gene region sequences revealed that, among the genus Alternaria , two species, Alternaria alternata sensu lato (s.l.) and Alternaria tenuissima , are involved in wood discoloration. In addition, the histone gene was useful as a marker for differentiating between A. alternata s.l. and A. tenuissima .
Tópico(s): Yeasts and Rust Fungi Studies
2013 - De Gruyter | Holzforschung
Ji‐won Hwang, Hak‐Ju Kim, Sung Woo Cho, Yoon Cheol Shin, Hye Sook Kim, Yong‐Jin Cho, Jae-Jin Kwak,
Abstract Knowledge of the multi-organ involvement in hypereosinophilic syndrome (HES) is important for the diagnosis and care of patients with this condition, even in cases with atypical presentation. This report aims to describe cerebral embolic infarction and intracardiac atypical linear-shaped thrombus in a patient with idiopathic HES and to discuss the approach of appropriate diagnosis and timely interventional management. A 55-year-old man presented with general weakness, including left-sided weakness, ...
Tópico(s): Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
2020 - Elsevier BV | Journal of Cardiology Cases