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Depression and cardiovascular diseases among Canadian older adults: a cross-sectional analysis of baseline data from the CLSA Comprehensive Cohort

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Journal of Geriatric Cardiology 2019年第12期16卷 847-854页

作者： Jian LIU Surim son John McIntyre Miya Narushima Brock University St.CatharinesOntarioCanada Parkside Medical Clinic WaterdownOntarioCanada

Objective To examine whether cardiovascular disease(CVD) is associated with depression status. Methods 29,328 participants from baseline of Canadian Longitudinal Study for Aging were categorized into four groups of depression status. Group 1: no depression(reference);Group 2: currently with depression symptom(CES-D10 score ≥ 10, negative self-reported depression);Group 3: self-reported depression with no current symptom(CES-D10 score < 10, positive self-reported depression);and Group 4: self-reported depression with current symptom(CES-D10 score ≥ 10, self-reported depression). Six self-reported CVDs were grouped into two related disorders, i.e., heart related disorders(HRD) including heart disease, myocardial infarction, and angina;and peripheral/vascular related disorders(PRD) including hypertension, stroke, and peripheral vascular disease. Adjusted odds ratios(ORs) were used to evaluate the associations between depression and CVDs. Results 17.3% of participants had self-reported depression, 15.3% were with current depression symptom, 10.5% were with HRD and 34.4% were with PRD. After adjusting for variables of demographics, sex, lifestyles, and comorbidities, compared to reference, people in Group 2 had a slightly increased odds, but most of them were not statistically significant;the ORs(95% CI) were 1.36(1.18–1.58, P < 0.0001) for HRD and 1.20(1.09–1.32, P < 0.001) for PRD in Group 3;for people in Group 4, the ORs(95% CI) were 1.31(1.08–1.61, P < 0.01) for HRD and 1.17(1.02–1.34, P < 0.05) for PRD. Sex-and age-stratified analyses suggested that the increased ORs were more prevalent in men and people aged < 65 years. Conclusions Seniors with self-reported depression are associated with an increased risk of CVDs, the association varies by depression status, sex and age.

关键词： Age Cardiovascular diseases CES-D10 score Clinic depression Sex

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Refined Functional Equations Stemming from Cubic,Quadratic and Additive Mappings

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Acta Mathematica Sinica,English Series 2009年第10期25卷 1595-1608页

作者： Ick-Soon CHANG Eunyoung son Hark-Mahn KIM Department of Mathematics Mokwon University Department of Mathematics Chungnam National University

Let n ≥ 2 be an integer. In this paper, we investigate the generalized Hyers-Ulam stability problem for the following functional equation f（n-1∑j=1 xj＋2xn）＋f（n-1∑j=1 xj-2xn）＋8 n-1∑j=1f（xj）=2f（n-1∑j=1 xj... 详细信息

关键词： generalized Hyers-Ulam stability functional equations cubic mappings quadratic mappings difference operator

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Dynamic Balance Control Based on an Adaptive Gain-scheduled Backstepping Scheme for Power-line Inspection Robots

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IEEE/CAA Journal of Automatica Sinica 2019年第1期6卷 198-208页

作者： songyi Dian Lin Chen son Hoang Ming Pu Junyong Liu the School of Electrical Engineering and Information Sichuan University the College of Control Engineering Chengdu University of Information Technology

This paper presents an adaptive gain-scheduled backstepping control(AGSBC) scheme for the balance control of an underactuated mechanical power-line inspection(PLI) robotic system with two degrees of freedom and a single control ***, a nonlinear dynamic model of the balance adjustment process of the PLI robot is constructed, and then the model is linearized at a nominal equilibrium point to overcome the computational infeasibility of the conventional backstepping technique. Second, to solve generalized stabilization control issue for underactuated systems with multiple equilibrium points,an equilibrium manifold linearized model is developed using a scheduling variable, and then a gain-scheduled backstepping control(GSBC) scheme for expanding the operational area of the controlled system is constructed. Finally, an adaptive mechanism is proposed to counteract the impact of external disturbances. The robust stability of the closed-loop system is ensured by Lyapunov theorem. Simulation results demonstrate the effectiveness and high performance of the proposed scheme compared with other control schemes.

关键词： Adaptive backstepping balance control gain-scheduled inspection robot power line

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Stability of operation versus temperature of a three-phase clock-driven chaotic circuit

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Chinese Physics B 2013年第12期22卷 152-159页

作者：周继超 Hyunsik son Namtae Kim Han Jung song Department of Nano Systems Engineering Inje University Department of Electronic Engineering Inje University Center for Nano Manufacturing Inje University

We evaluate the influence of temperature on the behavior of a three-phase clock-driven metal–oxide–semiconductor （MOS） chaotic circuit. The chaotic circuit consists of two nonlinear functions, a level shifter, and three sample and hold blocks. It is necessary to analyze a CMOS-based chaotic circuit with respect to variation in temperature for stability because the circuit is sensitive to the behavior of the circuit design parameters. The temperature dependence of the proposed chaotic circuit is investigated via the simulation program with integrated circuit emphasis （SPICE） using 0.6-μm CMOS process technology with a 5-V power supply and a 20-kHz clock frequency. The simulation results demonstrate the effects of temperature on the chaotic dynamics of the proposed chaotic circuit. The time series, frequency spectra, bifurcation phenomena, and Lyapunov exponent results are provided.

关键词： chaotic circuit nonlinear functions temperature effect bifurcation Lyapunov exponent

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Critical factors to inhibit water-splitting side reaction in carbon-based electrode materials for zinc metal anodes

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Carbon Energy 2022年第6期4卷 1080-1092页

作者： Dong Hyuk Kang Eunji Lee Beom sik Youn son Ha Jong Chan Hyun Juhee Yoon Dawon Jang Kyoung Sun Kim Hyungsub Kim Sang Moon Lee Sungho Lee Hyoung-Joon Jin Hyung-Kyu Lim Young Soo Yun KU-KIST Graduate School of Converging Science and Technology Korea UniversitySeoulSeongbuk-guSouth Korea Division of Chemical Engineering and Bioengineering Kangwon National UniversityChuncheonGangwon-doSouth Korea Department of Eco-Polymer Science and Engineering Inha UniversityIncheonMichuhol-guSouth Korea Carbon Composite Materials Research Center Institute of Advanced Composite MaterialsKorea Institute of Science and Technology(KIST)Jeollabuk-doSouth Korea Department of Chemical and Biological Engineering Korea UniversitySeoulSeongbuk-guSouth Korea Neutron Science Division Korea Atomic Energy Research Institute(KAERI)DaejeonYuseong-guSouth Korea Research Center for Materials Analysis Korea Basic Science Institute(KBSI)DaejeonYuseong-guSouth Korea Department of Integrative Energy Engineering Korea UniversitySeoulSeongbuk-guSouth Korea

Zinc metal anodes(ZMA)have high theoretical capacities(820 mAh g−1 and 5855 mAh cm−3)and redox potential(−0.76 V *** hydrogen electrode),similar to the electrochemical voltage window of the hydrogen evolution reaction(HER)in a mild acidic electrolyte system,facilitating aqueous zinc batteries competitive in next-generation energy storage ***,the HER and byproduct formation effectuated by water-splitting deteriorate the electrochemical performance of ZMA,limiting their *** this study,a key factor in promoting the HER in carbon-based electrode materials(CEMs),which can provide a larger active surface area and guide uniform zinc metal deposition,was investigated using a series of threedimensional structured templating carbon electrodes(3D-TCEs)with different local graphitic orderings,pore structures,and surface *** ultramicropores of CEMs are the determining critical factors in initiating HER and clogging active surfaces by Zn(OH)2 byproduct formation,through a systematic comparative study based on the 3D-TCE series *** the 3D-TCEs had a proper graphitic structure with few ultramicropores,they showed highly stable cycling performances over 2000 cycles with average Coulombic efficiencies of≥99%.These results suggest that a well-designed CEM can lead to high-performance ZMA in aqueous zinc batteries.

关键词： aqueous batteries carbon electrode hydrogen evolution reaction multivalent ion zinc metal anode

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Uniform assembly of gold nanoparticles on S-doped g-C3N4 nanocomposite for effective conversion of 4-nitrophenol by catalytic reduction

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Journal of Materials Science & Technology 2020年第5期40卷 176-184页

作者： Vellaichamy Balakumar Hyungjoo Kim Ji Won Ryu Ramalingam Manivannan Young-A son Department of Advanced Organic Materials Engineering Chungnam National University220 Gung-dongYuseong-guDaejeon305-764South Korea

In this work,a simple synthesis of sulfur doped graphitic carbon nitride(S-g-C3N4)act as a support cum stabilizers for gold nanoparticles(Au)and its was characterized by UV–vis and XRD to measure the absorbance and crystallinity,*** functional group and morphology of the samples were identified using FT-IR and ***,the Au@S-g-C3N4 nanocatalyst exhibits good catalytic performance and stability in the reduction of hazardous 4-nitrophenol(NP)compared to S-g-C3N4 using Na ***,the Au@S-g-C3N4 nanocomposite holds a good catalytic efficiency(near 100%)achieved by within 5 *** highest catalytic reduction of NP is due to the synergistic effect of Au nanoparticles decorated on *** fast electron transfer reduction mechanism was elucidated and *** reusability and stability of the developed nanocomposites were also observed in consecutive reduction *** filtering and catalyzing device was used for the direct conversion of NP polluted *** method can open a new avenue for the metal nanoparticles based carbon materials heterogeneous catalyst and its reduction of toxic contaminants.

关键词： Gold nanoparticles S-doped g-C3N4 Catalytic reduction 4-nitrophenol

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Novel mechanisms in functional dyspepsia

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World Journal of Gastroenterology 2006年第5期12卷 673-677页

作者： Rok son Choung Nicholas J Talley Clinical Enteric Neuroscience Translational and Epidemiological Research Program Mayo ClinicRochesterMNUnited States

Functional dyspepsia （FD） is a highly prevalent but heterogeneous disorder in which multiple pathogenetic mechanisms are involved. Although there are many studies that have investigated various pathophysiologic mechanisms, the underlying casual pathways associated with FD remain obscure. The currently proposed pathophysiologic mechanisms associated with FD include genetic susceptibility, delayed as well as accelerated gastric emptying, visceral hypersensitivity to acid or mechanical distention, impaired gastric accommodation, abnormal fundic phasic contractions, abnormal antroduodenal motility, acute and chronic infections, and psychosocial comorbidity. A greater understanding of the abnormalities underlying FD may lead to improved management. The aim of this editorial is to provide a critical overview of current pathophysiologic concepts in functional dyspepsia.

关键词： Functional dyspepsia Gastric function Pathophysiology

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Exophytic inflammatory myofibroblastic tumor of the stomach in an adult woman:A rare cause of hemoperitoneum

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World Journal of Gastroenterology 2008年第1期14卷 136-139页

作者： Seong-Heum Park Jong-Han Kim Byung wook Min Tae Jin song Gil Soo son Seung Joo Kim Sang woo Lee Hwan-Hoon Chung Ju Han Lee Jun Won Um Department of Surgery Korea University College of Medicine 126-1 5-Ga Anam-Dong Sungbuk-Gu Seoul 136-705 Korea Department of Internal Medicine Korea University College of Medicine 126-1 5-Ga Anam-Dong Sungbuk-Gu Seoul 136-705 Korea Department of Radiology Korea University College of Medicine 126-1 5-Ga Anam-Dong Sungbuk-Gu Seoul 136-705 Korea Department of Pathology Korea University College of Medicine 126-1 5-Ga Anam-Dong Sungbuk-Gu Seoul 136-705 Korea

Inflammatory myofibroblastic tumor （INT） of the stomach in adults is extremely rare, with unpredictable prognosis. We present a 55-year-old woman with a gastric IMT. She experienced sudden abdominal pain 4 d previously. Physical examination showed mild abdominal tenderness in the hypogastrium, but no palpable abnormal abdominal mass. Abdominal CT showed a mass of approximately 8 cm in the gastrocolic ligament. On laparoscopic exploration, unexpected hemoperitoneum of approximately 1.5 L of blood was found, and an exophytic gastric mass of approximately 10 cm, appeared from the anterior wall of the gastric body along the greater curvature. Laparoscopy further showed that non- clotting blood in the abdominal cavity seemed to be from the gastric tumor. After conversion to open surgery for more precise evaluation of the cause of hemoperitoneum and the large friable tumor, gastric wedge resection, including the tumor, was conducted. The final diagnosis was consistent with IMT that originated from the gastric wall.

关键词： Stomach disease Stomach neoplasms Hemoperitoneum Myofibroma Granuloma Plasma cell Stomach surgery

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The role of Eph receptors in lens function and disease

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Science China(Life Sciences) 2012年第5期55卷 434-443页

作者： son Alexander I. PARK Jeong Eun Department of Chemical Biology Ernest Mario School of PharmacyRutgersThe State University of New Jersey

Cataract is the single largest contributor to blindness in the world,with the disease having a strong genetic *** recent years the Eph family of receptor tyrosine kinases has been identified as a key regulator in lens... 详细信息

关键词： cataract lens EphA2 ephrin-A5

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Exploiting the quantum mechanically derived force field for functional materials simulations

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npj Computational Materials 2021年第1期7卷 1405-1413页

作者： Alexey Odinokov Alexander Yakubovich Won-Joon son Yongsik Jung Hyeonho Choi Samsung R&D Institute Russia(SRR) Samsung Electronics12 Dvintsev StreetMoscow 127018Russia Data and Information Technology Center Samsung ElectronicsHwaseong 18448Korea Samsung Advanced Institute of Technology(SAIT) Samsung Electronics130 Samsung-roYeongtong-guSuwon 16678Korea

The computational design of functional materials relies heavily on large-scale atomistic *** simulations are often problematic for conventional classical force fields,which require tedious and time-consuming parameterization of interaction *** problem can be solved using a quantum mechanically derived force field(QMDFF)—a system-specific force field derived directly from the first-principles *** present a computational approach for atomistic simulations of complex molecular systems,which include the treatment of chemical reactions with the empirical valence bond *** accuracy of the QMDFF is verified by comparison with the experimental properties of liquid *** illustrate the capabilities of our methodology to simulate functional materials in several case studies:chemical degradation of material in organic light-emitting diode(OLED),polymer chain packing,material morphology of organometallic *** presented methodology is fast,accurate,and highly automated,which allows its application in diverse areas of materials science.

关键词： functional field quantum

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