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Association between body mass index and body fat measured by dual-energy X-ray absorptiometry (DXA) in China: a systematic review and meta-analysis

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Global Health Journal 2023年第2期7卷 61-69页

作者： Xiaomin Sun na Yan Wen Peng Tuan T nguyen Lu Ma Youfa Wang International Obesity and Metabolic Disease Research Center Global Health InstituteSchool of Public HealthXi'an Jiaotong UniversityXi'anShaanxi 710061China Nutrition and Health Promotion Center Department of Public HealthMedical CollegeQinghai UniversityXiningQinghai 810061China Alive&Thrive East Asia Pacific FHI 360Hanoi 11022Vietnam

Objective:We examined the association between body mass index(BMI)and body fat percentage(BF%)measured by dual-energy X-ray absorptiometry(DXA)among adults and children in ***:We searched four databases-PubMed,China national Knowledge Infrastructure,Wanfang,and Vip for studies published in the past 22 ***-analysis was conducted using random-or fixed-effect ***:In total of 21 studies met inclusion criteria and were included in review,and 17 ot them in *** were conducted across *** sample size ranged from 62 to 5726,and participants'age ranged from 6-80 ***-analysis revealed strong associations between BMI and BF% measured by DXA in adults(pooled r=0.71,95% CI:0.66 to 0.74)and children(pooled r=0.60,95% CI:0.52 to 0.68).The association was stronger in Northern China than in East China in children(β=-0.40,95%CI:-0.65 to-0.14)and in Central China in adults(β=-0.25;95% CI:-0.51 to-0.01).Urban children's BMI was strongly associated with BF%than rural(β=0.19;95%CI:0.04 to 0.35),whereas it was stronger in adults living in rural than in urban(β=-0.35;95% CI:-0.66 to-0.05).Conclusions:BMI was strongly associated with BF%measured by DXA,and the association in children and adults in China varied by residence and region.

关键词： Body mass index Dual-energy x-ray absorptiometry Body adiposity Children Adults China

An Adaptive Neuro Fuzzy Network for Nonlinear Active Noise Control Systems

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An Adaptive Neuro Fuzzy Network for Nonlinear Active Noise C...

A review of potential mechanisms and uses of SGLT2 inhibitors in ischemia-reperfusion phenomena

第43届中国控制会议

作者： nguyen Thi Trung Tin Jing na nguyen Le Thai Yingbo Huang Gengen Li Faculty of Mechanical & Electrical Engineering Kunming University of Science & Technology Yunnan Key Laboratory of Intelligent Control and Application Kunming University of Science & Technology Faculty of Engineering and Technology Nguyen Tat Thanh University

This paper presents an Adaptive Neuro Fuzzy Network(ANFN) for enhancing the performance of nonlinear feedforward active noise control systems. The proposed controller is a combination of the fuzzy logic technique and adaptive neural network. The Filtered-X Least Mean Square(FXLMS) algorithm is used to update the weights of the nonlinear ANFN controller. The convergence of the proposed control system is also proven by using a discrete Lyapunov function, and simulation results are given to demonstrate the effectiveness of the proposed method.

关键词： Nonlinear active noise control(NLANC) filtered-x least-mean-square(FXLMS) algorithm Adaptive Neuro-Fuzzy Network(ANFN) nonlinear path

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World Journal of Diabetes 2022年第9期13卷 683-695页

作者： Victor Quentin Manveer Singh Lee S nguyen Intensive Care Medicine CMC Ambroise ParéNeuilly-sur-Seine 92200France Research and Innovation CMC Ambroise ParéNeuilly-sur-Seine 92200France

Recently added to the therapeutic arsenal against chronic heart failure as a first intention drug,the antidiabetic drug-class sodium-glucose cotransporter-2 inhibitors(SGLT2i)showed efficacy in decreasing overall mortality,hospitalization,and sudden death in patients of this very population,in whom chronic or acute ischemia count among the first ***,this benefit was observed independently from diabetic status,and benefited both preserved and altered ventricular ejection *** feature,observed in several large randomized controlled trials,suggests additional effects from SGLT2i beyond isolated glycemia ***,both in-vitro and animal models suggest that inhibiting the na+/H+exchanger(NHE)may be key to preventing ischemia/reperfusion injuries,and by extension may hold a similar role in ischemic damage control and ischemic ***,several other mechanisms may be explored which may help better target those who may benefit most from SGLT2i *** of a large therapeutic margin with few adverse events,ease of prescription and potential pharmacological efficacity,SGLT2i could be candidate for wider *** this review,we aim to summarize all evidence which link SGLT2i and ischemia/reperfusion injuries modulation,by first listing known mechanisms,including metabolic switch,prevention of lethal arrythmias and others,which portend the latter,and second,hypothesize how the former may interact with these mechanisms.

关键词： SGLT2 inhibitors Ischemia-reperfusion injuries Sodium-proton exchanger Myocardial ischemia Immunomodulation

Upconversion luminescence of Gd2O3:Er3+and Gd2O3:Er3+/silica nanophosphors fabricated by EDTA combustion method

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Journal of Rare Earths 2019年第11期37卷 1126-1131页

作者： Le Quoc Minh Tran Kim Anh nguyen Duy Hung Pham Thi Minh Chau nguyen Thi Quy Hai Ho Van Tuyen Vu Thi Thai Ha Vu Duc Tu Wieslaw Strek Institute of Theoretical and Applied Research Duy Tan UniversityDa Nang 55000Viet Nam Advanced Institute for Science and Technology Hanoi University of Science and Technology1 Dai Co VietHai Ba TrungHanoiViet Nam Institute of Materials Science Vietnam Academy of Science and Technology18 Hoang Quoc Viet RoadCau Giay DistrictHanoiViet Nam Institute of Low Temperature and Structure Research Polish Academy of Science 2 OkolnaWroclawPoland

Gd2O3:Er^3+nanophosphors were fabricated by the combustion method in presence of na2 ethylene diamine tetra acetic acid(EDTA-na2)as fuel at not high temperature(≤350℃)within a very short time of 5 *** added concentration of Er^3+ions in Gd2O3 matrix was changed from 0.5 mol%to 5.0 mol%.The X-ray diffraction pattern of samples indicates the monoclinic structure of Gd2O3:Er^3+.The morphology and chemical composition analysis of the Gd2O3:Er^3+samples are characterized by a field emission scanning electron microscope(FESEM)and a Fourier-transform infrared spectrometer(FTIR).The photoluminescence(PL),photo luminescence excitation(PLE)and upconversion(UC)at room temperature of the prepared materials with different concentrations of Er^3+were *** PL of Gd2O3:Er^3+nanomaterials are shown in visible at 545,594,623,648,688 nm under excitation at 275 *** emission bands from transitions of Er^3+from 2P3/2 to 4F9/2 are observed,UC luminescent spectra of the Gd2O3:Er^3+/silica nanocomposites under 976 nm excitation show the bands at 548 and 670 *** influence of excitation power at 980 nm for transitions were measured and *** results indicate that the upconversion process of Gd2O3:Er^3+/silica is two photons absorption *** low temperature dependence of UC luminescent intensities of the main bands of Gd2O3:Er^3+was investigated towards development of a nanotemperature sensor in the range of 10-300 K.

关键词： Upconversion luminescence Gd2O3:Er3+ Gd2O3:Er3+/silica nanophosphors EDTA combustion Rare earths

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Dipolar spin relaxation of divacancy qubits in silicon carbide

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npj Computational Materials 2021年第1期7卷 1974-1984页

作者： Oscar Bulancea-Lindvall nguyen T.Son Igor A.Abrikosov Viktor Ivády Department of Physics Chemistry and BiologyLinköping UniversitySE-58183 LinköpingSweden Wigner Research Centre for Physics Hungarian Academy of SciencesPO Box 49H-1525 BudapestHungary Max-Planck-Institut für Physik komplexer Systeme Nöthnitzer Straße 38D-01187 DresdenGermany

Divacancy spins implement qubits with outstanding characteristics and capabilities in an industrial semiconductor host On the other hand,there are still numerous open questions about the physics of these important defects,for instance,spin relaxation has not been thoroughly studied ***,we carry out a theoretical study on environmental spin-induced spin relaxation processes of divacancy qubits in the 4H polytype of silicon carbide(4H-SiC).We reveal all the relevant magnetic field values where the longitudinal spin relaxation time T,drops resonantly due to the coupling to either nuclear spins or electron *** quantitatively analyze the dependence of the T,time on the concentration of point defect spins and the applied magnetic field and provide ananalytical *** demonstrate that dipolar spin relaxation plays a significant role both in as-grown and ion-implanted samples and it often limits the coherence time of divacancy qubits in 4H-SiC.

关键词： relaxation vacancy resonant

Effect of sintering temperature on the dielectric,ferroelectric and energy storage properties of SnO_(2)-doped Bi_(0.5)(na_(0.8)K_(0.2))_(0.5)TiO_(3)lead-free ceramics

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Journal of Advanced Dielectrics 2020年第4期10卷 13-21页

作者： nguyen Truong-Tho Le Dai Vuong Department of Physics College of Sciences Hue UniversityHue CityVietnam Faculty of natural Sciences Thu Dau Mot University Binh Duong Province Vietnam

Sintered lead-free Bi_(0.5)(na_(0.8)K_(0.2)T_(0.5)(Ti0:96Sn0:04TO_(3)ceramics(BNKTS)have been fabricated via a solid-state *** effect of sintering temperature on the structural,morphological,dielectric,ferroelectric and energy storage properties of BNKTS ceramics was investigated,and it was found that the electrical properties of the synthesized ceramics increased with the increase in the sintering temperature,and the highest values were achieved at 1100℃.The ceramics sintered at the optimized temperature of 1100℃exhibited the best physical,dielectric,ferroelectric and energy storage properties,namely,high density(the relative density,ρ=5:88 ***^(-3),approximate to 96.7%of the theoretical value),high densification factor(DF=0:93),high dielectric constant(ε_(r)=1215),low dielectric loss(tanδ=0:051),highest dielectric constant(ε_(max)=4335),high remanent polarization(Pr=9:5μ***^(-2),high coercive field(E_(c)=14:3 kV/cm),high energy storage density(0.12 J/cm^(3),and high energy storage efficiency(41.7%at 46.3 kV/cm).

关键词： Lead-free ceramics BNKT sintering temperature dielectric constant

Incorporation of hydroxyapatite in crosslinked gelatin/chitosan/poly(vinyl alcohol) hybrids utilizing as reinforced composite sponges, and their water absorption ability

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Progress in natural Science:Materials International 2021年第5期31卷 664-671页

作者： Thi Sinh Vo Tran Thi Bich Chau Vo Truong Sinh nguyen Nhan Duy Pham School of Mechanical Engineering Sungkyunkwan University Department of Chemistry Memorial University of Newfoundland Department of Industrial Management Can Tho University

The crosslinked gelatin/chitosan/poly(vinyl alcohol)/hydroxyapatite(GEL/CTS/PVA/HAp, GCPH) sponges were fabricated by a freeze-drying method to yield the reinforced composite sponges with proper features. The porosity value and pore size of the crosslinked GCPH sponges reached ～80% and 50–100 μm, respectively, which can be an appropriate range to allow cells to migrate into the reinforced composite sponges in the tissue engineering technology. Besides, the proper bonding presence between HAp particles and the crosslinked polymeric matrix or the crosslinked network formation between the polymers were also proved through fourier-transform infrared spectroscopy(FTIR), X-ray diffraction(XRD) and thermal gravimetric(TG/DTG) analysis. Owing to incorporation of HAp particles and good distribution of HAp particles inside the crosslinked polymeric matrix, their mechanical properties were improved through the determination of compression tests. Concomitantly, their water absorption ability reached effectively in both the distilled water and na Cl solution, and their recovery also maintained well for 10 absorbing–squeezing cycles to be considered as an effective reusability for the crosslinked sponge ***, the crosslinked GCPH sponge prepared in the present study can become a potential candidate to apply especially in the biomedical/medical applications and tissue engineering technology.

关键词： Reinforced composite sponge Gelatin Chitosan Poly(vinyl alcohol) Hydroxyapatite Water absorption ability Reusability

Usefulness of Mac-2 binding protein glycosylation isomer in noninvasive probing liver disease in the Vietnamese population

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World Journal of Hepatology 2020年第5期12卷 220-229页

作者： Thuy Thi Thu Pham Dat Tan Ho Toan nguyen MEDIC Medical Center Ho Chi Minh 72517Vietnam

BACKGROUND Early diagnosis is critical for successful intervention before liver disease progresses to cirrhosis and hepatocellular *** To examine a novel biomarker for probing early liver disease quickly using an automated immunology *** This was a cross-sectional study.140 patients at various stages of liver disease were randomly *** cohort consisted of patients who were treatment naïve and currently undergoing *** included patients with diverse liver disease ***-2 binding protein glycosylation isomer(M2BPGi)levels in addition to different clinical parameters,co-morbidities and transient elastography results were collected and *** M2BPGi levels were significantly correlated with transient elastography for liver fibrosis staging across all disease *** significant differences were observed in patients with F0-1;F2 and>F3 liver *** examination showed that M2BPGi levels were two-fold higher in F4 than F3 hepatitis C(HCV)patients.M2BPGi was observed to be etiology-specific and HCV patients had higher mean M2BPGi *** also observed significant correlations with aspartate aminotransferase to platelet ratio index and fibrosis-4 index as well as HBV Dna *** M2BPGi levels for HBV patients with a viral load lower than 2000 IU/mL was 1.75-fold lower than those with a viral load greater than 2000 IU/*** M2BPGi was observed to be a good indicator of early liver disease in patients with different *** results provide reference cut-offs for different causes of liver disease and demonstrated the utility of this marker for early disease *** is useful for remote regions in developing countries.

关键词： Hepatitis B Hepatitis C Noninvasive fibrosis markers Mac-2 binding protein glycosylation isomer Liver disease

Enhanced corrosion performance of magnesium phosphate conversion coating on AZ31 magnesium alloy

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Transactions of Nonferrous Metals Society of China 2017年第5期27卷 1087-1095页

作者： nguyen Van PHUONG Manoj GUPTA Sungmo MOON Korea Institute of Materials Science Gyeongnam 51508 Korea Department of Mechanical Engineering National University of Singapore 119260 Singapore Korea University of Science and Technology Daejeon 34113 Korea

Magnesium phosphate conversion coating(MPCC)was fabricated on AZ31magnesium alloy for corrosion protection by immersion treatment in a simple MPCC solution containing Mg2+and3PO4?*** MPCC on AZ31Mg alloy showed micro-cracks structure and a uniform thickness with the thickness of about2.5μm after20min of phosphating *** composition analyzed by energy dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy revealed that the coating consisted of magnesium phosphate and magnesium hydroxide/oxide *** MPCC showed a significant protective effect on AZ31Mg *** corrosion current of MPCC was reduced to about3%of that of the uncoated surface and the time for the deterioration process during immersion in0.5mol/L naCl solution improved from about10min to about24h.

关键词： magnesium alloy AZ31 alloy magnesium phosphate conversion coating corrosion protection

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