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Patterns of hepatitis B virus exposure and associated predictors in Vietnam: A crosssectional study

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Asian Pacific Journal of tropical Medicine 2020年第12期13卷 535-541页

作者： Minh C.duong Phuc V.d.Le Oanh N.K.pham Hien d.t.pham toan B.Nguyen Hai t.Phan School of Public Health and Community Medicine University of New South WalesSydneyNew South WalesAustralia MEdIC Medical Center Ho Chi Minh CityVietnam Hospital for tropical diseases Ho Chi Minh CityVietnam pham Ngoc thach University of Medicine Ho Chi Minh CityVietnam

Objective:to examine the magnitude of isolated anti-HBc and other HBV serological patterns and associated predictors among adults seeking general health check-up at a large health center in ***:All 564 outpatients seeking general health checkup between January 2016 and december 2016 were asked to undertake HBV surface antigen,surface antibody,IgG and IgM core antibody(anti-HBc total),platelet counts,and liver function *** administered questionnaire was used to collect information regarding demography,in-house sources of infection,lifestyle,health condition and treatment,and HBV ***:Male gender(P=0.043),age(P=0.000),living in urban areas(P=0.040),HBV vaccination status(P=0.033),and ALt(P=0.040) were associated with isolated *** infection was associated with HBV vaccination status(P=0.001),ALt levels(P=0.010),ASt levels(P=0.020),and platelet counts(P=0.007).Past/resolved HBV infection was associated with ASt levels(P=0.005),ALt levels(P=0.014),and age(P=0.000).Conclusions:Isolated anti-HBc is quite *** of isolated anti-HBc include male gender,living in rural areas,and HBV *** prevalence of isolated anti-HBc also increases with *** timely detect occult HBV infection and prevent transmission,anti-HBc testing should be included in the health check-up for high risk individuals and screening program where HBV nucleic acid test is not *** prevent transmission,clinicians need to pay more attention on those who are at risk of having isolated anti-HBc and closely follow-up patients with isolated anti-HBc and educate them about the prevention of HBV infection.

关键词： prevention seeking Vietnam

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快速原型与制造——原理、应用、技术与展望

快速原型与制造——原理、应用、技术与展望

Cellular models of stress resistance may pave ways to fight neurodegenerative diseases

中国科协第三届青年学术年会

作者：岳勇 d.t.pham 英国威尔士大学卡迪夫快速原型中心英国威尔士大学卡迪夫快速原型中心

＜正＞1 前言计算机辅助设计与制造CAd/CAM在产品开发制造过程中起到极其重要的作用。但在产品开发早期阶段,仍需花费大量时间和人力物力制备模型和原型,以便对设计的可行性、实用性和产品性能进行测试分析。这一期间关于形状、材料、... 详细信息

＜正＞1 前言计算机辅助设计与制造CAd/CAM在产品开发制造过程中起到极其重要的作用。但在产品开发早期阶段,仍需花费大量时间和人力物力制备模型和原型,以便对设计的可行性、实用性和产品性能进行测试分析。这一期间关于形状、材料、制造工艺等方面的决策,对产品整体造价的影响至关重要。由于这个问题的存在,近年来快速原型与制造Rapid Prototyping and Manufacturing技术取得很大发展。

关键词：分层制造快速原型与制造快速工具制造

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Neural Regeneration Research 2025年第9期20卷 2579-2580页

作者： thu Nguyen Minh pham Christian Behl Institute of Pathobiochemistry University Medical Center of the Johannes Gutenberg UniversityMainzGermany

Alzheimer's disease(Ad),the most common form of neurodegeneration,is characterized by selective neuronal vulnerability and brain regionselective neuron *** entorhinal cortex and hippoc,ampal CA1 projection neurons are at greater risk in Ad whereas other regions display resistance to ***,the cerebellum,a phylogenetically very old region,is affected only very late in the disease progression.

关键词： cortex resistance Alzheimer

EP Aquarii:A New Picture of the Circumstellar Envelope

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Research in Astronomy and Astrophysics 2024年第3期24卷 83-105页

作者： pham t.Nhung do t.Hoai Pierre darriulat pham tuan-Anh pham N.diep Nguyen B.Ngoc tran t.thai department of Astrophysics Vietnam National Space CenterVietnam Academy of Science and Technology18Hoang Quoc VietNghia DoCau GiayHa Noivietnam

New analyses of earlier ALMA observations of oxygen-rich AGB star EP Aquarii are presented,which complete a previously published analysis and offer a different interpretation of the morpho-kinematics of the circumstellar *** birth of the equatorial density enhancement(EdE)is shown to occur very close to the star where evidence for rotation has been *** to the star and where outflows have been observed:their interaction with the gas of the nascent EdE is seen to play an important role in the development of the wind and the evolution of its radial velocity from 8 to 10 km s^(-1) on the polar symmetry axis to~2 km s^(-1) at the *** implies complex morpho-kinematics:making reliable interpretations with reasonable confidence is *** particular,it questions an earlier interpretation implying the presence of a white dwarf companion orbiting the star at an angular distance of -0″4 from its *** proposes instead an interpretation in terms of a standard mass ejection associated with a shock wave leaving a void of emission in its *** doppler velocity wings are seen to consist of two components,the upper velocity end of the global wind,reaching above±12 km s^(-1),and an effective line broadening,confined within 200 mas from the center of the star,reaching above±20 km s^(-1) and interpreted as caused by the pattern of shock waves resulting from the interaction between stellar pulsation and convective cell partition.

关键词： stars AGB and post-AGB-(stars) circumstellar matter-radio lines stars

On the derivation of the entropy of ideal quantum gases confined in a three-dimensional harmonic potential

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Communications in theoretical Physics 2020年第4期72卷 106-111页

作者： Le tri dat Vinh N t pham Laboratory of Applied Physics Advanced Institute of Materials ScienceTon Duc Thang UniversityHo Chi Minh City 756636Vietnam Faculty of Applied Sciences Ton Duc Thang UniversityHo Chi Minh City 756636Vietnam Ho Chi Minh City University of Education Ho Chi Minh City 748342Vietnam

In this work,the entropy functions of ideal quantum gases in a three-dimensional harmonic trap are analytically calculated using temperature as an explicit ***,the applicability of the analytical formulas is validated by comparison with the numerical *** results illustrate that the obtained functions could be applied for the whole temperature regime with a maximum relative deviation of less than 7.5%in the vicinity of the critical temperature tcin the case of Bose ***,for Fermi gases,although the analytical formula fits well at very low-and high-temperature regimes,it cannot be applied at temperature in the range[0.3-0.5]t_F,where t_F is the Fermi *** addition,the consistency between our formulas and classical ones at significantly high temperatures is also discussed.

关键词： thermodynamic properties entropy 3d harmonic trap ideal quantum gases

HⅠ emission from the red giant Y CVn with the VLA and FASt

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Research in Astronomy and Astrophysics 2017年第7期17卷 39-46页

作者： do t.Hoai pham t.Nhung Lynn d.Matthews Eric Grard thibaut Le Bertre department of Astrophysics Vietnam National Satellite CenterVAST LERMA CNRSObservatoire de Paris/PSLSorbonne Universite's department of Astrophysics Vietnam National Satellite Center MIt Haystack Observatory GEPI CNRSObservatoire de Paris/PSL

Imaging studies with the Very Large Array（VLA） have revealed H I emission associated with the extended circumstellar shells of red giants. We analyze the spectral map obtained on Y CVn, a J-type carbon star on the Asymptotic Giant Branch. the H I line profiles can be interpreted with a model of a detached shell resulting from the interaction of a stellar outflow with the local interstellar *** reproduce the spectral map by introducing a distortion along a direction corresponding to the star＇s motion in space. We then use this fitting to simulate observations expected from the Five-hundred-meter Aperture Spherical radio telescope（FASt）, and discuss its potential for improving our description of the outer regions of circumstellar shells.

关键词： stars AGB and post-AGB-- stars carbon - stars individual Y CVn - radio lines stars

Classification of Short time Series in Early Parkinson’s disease With deep Learning of Fuzzy Recurrence Plots

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IEEE/CAA Journal of Automatica Sinica 2019年第6期6卷 1306-1317页

作者： tuan d.pham Karin Wardell Anders Eklund Goran Salerud department of Biomedical Engineering the Center for Medical Image Science and VisualizationLinkoping UniversityLinkopingSweden the Center for Artificial Intelligence Prince Mohammad Bin Fahd UniversityAl KhobarKingdom of Saudi Arabia department of Biomedical Engineering Linkoping UniversityLinkopingSweden department of Biomedical Engineering the Department of Computer and Information Sciencethe Center for Medical Image Science and VisualizationLinkoping UniversityLinkopingSweden

there are many techniques using sensors and wearable devices for detecting and monitoring patients with Parkinson’s disease(Pd).A recent development is the utilization of human interaction with computer keyboards for analyzing and identifying motor signs in the early stages of the *** designs for classification of time series of computer-key hold durations recorded from healthy control and Pd subjects require the time series of length to be considerably *** an attempt to avoid discomfort to participants in performing long physical tasks for data recording,this paper introduces the use of fuzzy recurrence plots of very short time series as input data for the machine training and classification with long short-term memory(LStM)neural *** an original approach that is able to both significantly increase the feature dimensions and provides the property of deterministic dynamical systems of very short time series for information processing carried out by an LStM layer architecture,fuzzy recurrence plots provide promising results and outperform the direct input of the time series for the classification of healthy control and early Pd subjects.

关键词： deep learning early Parkinson’s disease(Pd) fuzzy recurrence plots long short-term memory(LStM) neural networks pattern classification short time series

Performances of a new sustainable and durable dry beam-column joints under cyclic and impact loads

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Science China(technological Sciences) 2023年第2期66卷 282-300页

作者： HAO Hong NGO tuan t. pham thong M. LI HuaWei Center for Infrastructural Monitoring and Protection School of Civil and Mechanical EngineeringCurtin UniversityBentley WA 6102Australia the Faculty of Engineering and technology Quy Nhon UniversityBinh Dinh 590000Viet Nam Guangzhou University-Curtin University Joint Research Center for Structural Monitoring and Protection against Multi-dynamic Hazards School of Civil EngineeringGuangzhou UniversityGuangzhou 510006China

this study investigated the performances of a new type of precast beam-column joint subjected to earthquake and impact *** sustainability and durability considerations,new materials such as corrosion-resistant fibre reinforced polymer(FRP)bolts and reinforcements,fibre reinforced concrete(FRC),and geopolymer concrete(GPC)were used to construct the *** examine the resilience,durability,sustainability,and multi-hazard resistance capacities,both cyclic and pendulum impact tests were carried *** experimental results demonstrated that the proposed precast joints had the comparable or even better performances as compared with the traditional monolithic joints under cyclic and impact *** simulations using ABAQUS were also adopted to determine the optimal values of the concrete-end-plate(CEP)thickness for the proposed dry joints and to further quantify other response parameters which could not be obtained during the test,e.g.,stress distribution,energy absorption,and stress *** on the influences of various parameters on joint performances under different loading conditions was also presented in this study.

关键词： multi-hazards cyclic loads impact loads FRP bolts FRP reinforcements geopolymer concrete fibre-reinforced concrete dry joints ABAQUS

A High-order Coupled Compact Integrated RBF Approximation Based domain decomposition Algorithm for Second-order differential Problems

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Computer Modeling in Engineering & Sciences 2015年第4期104卷 251-304页

作者： C.M.t.tien N.pham-Sy N.Mai-duy C.-d.tran t.tran-Cong Computational Engineering and Science Research Centre Faculty of HealthEngineering and SciencesThe University of Southern QueenslandToowoombaQueensland 4350Australia

this paper presents a high-order coupled compact integrated RBF(CC IRBF)approximation based domain decomposition(dd)algorithm for the discretisation of second-order differential *** Schwarz dd algorithms,including one-level additive/multiplicative and two-level additive/multiplicative/hybrid,are *** CCIRBF based dd algorithms are analysed with different mesh sizes,numbers of subdomains and overlap sizes for Poisson *** convergence analysis shows that the CCIRBF two-level multiplicative version is the most effective algorithm among various schemes employed ***,the present CCIRBF two-level method converges quite rapidly even when the domain is divided into many subdomains,which shows great promise for either serial or parallel *** practical tests,we then incorporate the CCIRBF into serial and parallel two-level multiplicative *** numerical examples,including those governed by Poisson and Navier-Stokes equations are analysed to demonstrate the accuracy and efficiency of the serial and parallel algorithms implemented with the *** results show:(i)the CCIRBF-Serial and-Parallel algorithms have the capability to reach almost the same solution accuracy level of the CCIRBF-Single domain,which is ideal in terms of computational calculations;(ii)the CCIRBF-Serial and-Parallel algorithms are highly accurate in comparison with standard finite difference,compact finite difference and some other schemes;(iii)the proposed CCIRBF-Serial and-Parallel algorithms may be used as alternatives to solve large-size problems which the CCIRBF-Single domain may not be able to deal *** ability of producing stable and highly accurate results of the proposed serial and parallel schemes is believed to be the contribution of the coarse mesh of the two-level domain decomposition and the CCIRBF *** is noted that the focus of this paper is on the derivation of highly accurate serial and parallel algorithms

关键词： Coupled compact integrated RBF (CCIRBF) Schwarz domain decomposition one-level two-level coarse meshes additive multiplicative hybrid serial parallel colouring technique Poisson equation Naiver-Stokes equation liddriven cavity