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Hepatitis B vaccination status and associated factors among health science students

Asian Pacific Journal of Tropical Medicine 2023年第5期16卷 213-219页

作者： Binh Thanh Nguyen Lan Y vo Tap Van Nguyen Minh Cong vo Tinh Dang Pham Han Thi Ngoc Nguyen Lynda Boyer-Chu Giao Huynh Faculty of Medicine Tra Vinh UniversityTra Vinh CityTra Vinh ProvinceVietnam Faculty of Public Health University of Medicine and Pharmacy at Ho Chi Minh CityHo Chi Minh CityVietnam Faculty of Medical Management Nguyen Tat Thanh UniversityHo Chi Minh CityVietnam Department of Ear Nose Throat-Head and Neck Surgery FV hospitalHo Chi Minh CityVietnam Department of Anaesthesia and Intensive Care FV hospitalHo Chi Minh CityVietnam Infection Control Department University Medical Center Ho Chi Minh CityHo Chi Minh CityVietnam San Francisco Unified School District San FranciscoCaliforniaUSA

Objective:To evaluate hepatitis B virus(HBV)vaccine coverage and its associated factors among health science students in ***:This cross-sectional study involving 459 health science students at Tra Vinh University was conducted between April and June *** were collected using a structured questionnaire with items on sociodemographic characteristics,knowledge and attitude about HBV,and vaccination status.A multivariable logistic regression model was used to explore the factors associated with vaccination ***:The majority of participants were female(65.8%)and enrolled at the medical school(56.2%).A total of 30.3%participants received the full dose of the HBV *** percentages of participants with sufficient knowledge and positive attitudes toward HBV infection were 75.2%and 43.4%,*** was 11.8 times higher in sixth-year medical students than any healthcare student in their first-year[adjusted odds ratio(aOR)11.8,95%CI 3.1-45.1,P<0.001],and the coverage was also significant higher in those who had sufficient knowledge(aOR 2.0,95%CI 1.1-3.9,P<0.05)and positive attitudes(aOR 3.0,95%CI 1.9-4.8,P<0.05)than in their ***:The majority of students were not fully vaccinated against HBV,indicating they were vulnerable to the *** and authorities should reinforce health education messages aimed at encouraging all students to get vaccinated with the HBV vaccine,enhance their awareness and knowledge of HBV,and improve attitudes toward HBV infection prevention.

关键词： Hepatitis B Knowledge Attitude Practice Vaccination Students

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Potential application of high pressure carbon dioxide in treated wastewater and water disinfection:Recent overview and further trends

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Journal of Environmental Sciences 2015年第10期27卷 38-47页

作者： Huy Thanh vo Tsuyoshi Imai Truc Thanh Ho Thanh-Loc Thi Dang Son Anh Hoang Division of Urban Infrastructural Engineering Mien trung University of Civil Engineering Division of Environmental Science and Engineering Yamaguchi University

Recently emerging disadvantages in conventional disinfection have heightened the need for finding a new solution. Developments in the use of high pressure carbon dioxide for food preservation and sterilization have led to a renewed interest in its applicability in wastewater treatment and water disinfection. Pressurized CO2 is one of the most investigated methods of antibacterial treatment and has been used extensively for decades to inhibit pathogens in dried food and liquid products. This study reviews the literature concerning the utility of CO2 as a disinfecting agent, and the pathogen inactivation mechanism of CO2 treatment is evaluated based on all available research. In this paper, it will be argued that the successful application and high effectiveness of CO2 treatment in liquid foods open a potential opportunity for its use in wastewater treatment and water disinfection. The findings from models with different operating conditions（pressure, temperature, microorganism, water content, media …） suggest that most microorganisms are successfully inhibited under CO2 treatment. It will also be shown that the bacterial deaths under CO2 treatment can be explained by many different ***, the findings in this study can help to address the recently emerging problems in water disinfection, such as disinfection by-products（resulting from chlorination or ozone treatment）.

关键词： High pressure CO2 Inactivation effect Inactivation mechanism

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Dynamic changes of protein corona compositions on the surface of zinc oxide nanoparticle in cell culture media

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Frontiers of Chemical Science and Engineering 2019年第1期13卷 90-97页

作者： vo-Van Giau Yoon-Hee Park Kyu-Hwan Shim Sang-Wook Son Seong-Soo A. An Department of Bionanotechnology and Gachon Medical Research Institute Gachon University and Gachon Medical Research Institute Seongnam Korea Laboratory of Cell Signaling and Nanomedicine Department of Dermatology and Division of Brain Korea 21 Project for Biomedical Science Korea University College of Medicine Seoul Korea

The potential applications of nanomaterials used in nanomedicine as ingredients in drug delivery systems and in other products continue to expand. When nanomaterials are introduced into physiological environments and driven by energetics, they readily associate proteins forming a protein corona (PC) on their surface. This PC could result in an alteration of the nanomatcrial's surface characteristics, affecting their interaction with cells due to conformational changes in adsorbed protein molecules. However, our current understanding of nanobiological interactions is still very limited. Utilizing a liquid chromatography-mass spectroscopy/mass spectroscopy technology and a Cytoscape plugin (ClueGO) approach, we examined the composition of the PC for a set of zinc oxide nanoparticles (ZnONP) from cell culture media typically and further analyzed the biological interaction of identified proteins, respectively. In total, 36 and 33 common proteins were investigated as being bound to ZnONP at 5 min and 60 min, respectively. These proteins were further analyzed with ClueGO, a Cytoscape plugin, which provided gene ontology and the biological interaction processes of identified proteins. Proteins bound to the surface of nanoparticles that may modify the structure, therefore the function of the adsorbed protein could be consequently affect the complicated biological processes.

关键词： ZnONPs nanoparticles protein corona ClueGO

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Hepatitis C virus genotype 6:Virology,epidemiology,genetic variation and clinical implication

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World Journal of Gastroenterology 2014年第11期20卷 2927-2940,1812页

作者： vo Duy Thong Srunthron Akkarathamrongsin Kittiyod Poovorawan Pisit Tangkijvanich Yong Poovorawan Center of Excellence in Clinical Virology Faculty of MedicineChulalongkorn UniversityBangkok 10330Thailand Department of Medicine Faculty of MedicineChulalongkorn UniversityBangkok 10330Thailand Department of Biochemistry Faculty of MedicineChulalongkorn UniversityBangkok 10330Thailand

Hepatitis C virus (HCV) is a serious public health problem affecting 170 million carriers worldwide. It is a leading cause of chronic hepatitis, cirrhosis, and liver cancer and is the primary cause for liver transplantation worldwide. HCV genotype 6 (HCV-6) is restricted to South China, South-East Asia, and it is also occasionally found in migrant patients from endemic countries. HCV-6 has considerable genetic diversity with 23 subtypes (a to w). Although direct sequencing followed by phylogenetic analysis is the gold standard for HCV-6 genotyping and subtyping, there are also now rapid genotyping tests available such as the reverse hybridization line probe assay (INNO-LiPA II; Innogenetics, Zwijnaarde, Belgium). HCV-6 patients present with similar clinical manifestations as patients infected with other genotypes. Based on current evidence, the optimal treatment duration of HCV-6 with pegylated interferon/ribavirin should be 48 wk, although a shortened treatment duration of 24 wk could be sufficient in patients with low pretreatment viral load who achieve rapid virological response. In addition, the development of direct-acting antiviral agents is ongoing, and they give high response rate when combined with standard therapy. Herein, we review the epidemiology, classification, diagnosis and treatment as it pertain to HCV-6.

关键词： Hepatitis C virus Genotype 6 Epidemiology Clinical Treatment

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Novel method for the preparation of Cs-containing FAU（Y） catalysts for aniline methylation

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Frontiers of Chemical Science and Engineering 2018年第1期12卷 70-76页

作者： Olga A. Ponomareva Polina A. Shaposhnik Marina vo Belova Boris A. Kolozhvari Irina I. Ivanova Department of Chemistry Lomonosov Moscow State University Moscow 119991 Russia A.V. Topchiev Institute of Petrochemical Synthesis Moscow Russia

Cs-containing FAU（Y）-type zeolite catalysts were prepared by conventional and novel ion exchange procedures followed by incipient wetness impregnation with CsOH. The novel ion exchange procedure involved hydrothermal treatment of NaY zeolite in aqueous solution of CsCl at 140-200 ℃ for 6-24 h. The samples were characterized by low-temperature nitrogen adsorption, X-ray fluorescence analysis, X-ray powder diffraction, scanning electron microscopy, 23Na, 27Al and 133Cs magic angle spinning nuclear magnetic resonance, CO2 and NH3-Temperature programmed desorption. The results show that hydrothermal treatment at 200 ℃ allows to obtain higher degrees of ion-exchange （up to 83%） with respect to conventional method giving maximum 66%- 69%. Catalytic properties of Cs-containing FAU（Y） were studied in aniline methylation. The yield of Nomethylani- line is shown to correlate with catalyst＇s basicity. The best catalyst performance was achieved over the catalyst with the highest ion-exchange degree impregnated with CsOH. The selectivity to N-methylaniline over this catalyst reached 96.4%.

关键词： FAU(Y) zeolite ion exchange with cesium aniline alkylation N-methylaniline

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Radiative decays D*(s)→ D(s)γ in covariant confined quark model

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Chinese Physics C 2024年第2期48卷 45-56页

作者： C.T.Tran M.A.Ivanov P.Santorelli Q.C.vo Department of Physics HCMC University of Technology and EducationVo Van Ngan 1700000 Ho Chi Minh CityVietnam Bogoliubov Laboratory of Theoretical Physics Joint Institute for Nuclear Research141980 DubnaRussia Dipartimento di Fisica"E.Pancini" Universitàdi Napoli Federico ⅡComplesso Universitario di Monte S.AngeloVia CintiaEdificio 680126 NapoliItaly Istituto Nazionale di Fisica Nucleare Sezione di Napoli80126 NapoliItaly University of Science 700000 Ho Chi Minh CityVietnam

Radiative decays D((s))*→D((s))γare revisited in light of new experimental data from the BaBar and BESⅢ*** radiative couplings gD*Dγencoding nonperturbative QCD effects are calculated in the framework of the covariant confined quark model developed by *** compare our results with other theoretical studies and experimental *** couplings(in GeV-1)|g(D*+D+γ)|=0.45(9)and|g(D*0D0γ)|=1.72(34)calculated in our model agree with the corresponding experimental data|g(D*+D+γ)|=0.47(7)and|g(D*0D0γ)|=1.77(16).The most interesting case is the decay Ds*→Dsγ,for which a recent prediction based on light-cone sum rules at next-to-leading order|gDs*Dsγ|=0.60(19)deviates from the first(and only to date)lattice QCD result|gDs*Dsγ|=0.11(2)at nearly3σ.Our calculation yields|gDs*Dsγ|=0.29(6),which falls somehow between the two mentioned results,although it is larger than those predicted in other studies using quark models or QCD sum rules.

关键词： covariant quark model radiative decay charmed meson

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Monitoring and modeling of urban sprawl through remote sensing and GIS in Kuala Lumpur, Malaysia

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Ecological Processes 2015年第1期4卷 165-174页

作者： Mukesh Singh Boori Maik Netzband Komal Choudhary Vít voženílek Palacky University Olomouc 17.listopadu 5077146 OlomoucCzech Republic Geographical Institute Ruhr University BochumBochumGermany Samara State Aerospace University SamaraRussia

Introduction:Kuala Lumpur is currently experiencing a large-scale urban *** study explores a multi-buffer ring method to investigate the spatial and temporal dynamics of urban growth in the Kuala Lumpur metropolitan area by using Geographical Information Systems(GIS)and remote sensing imageries from1989 to ***:The first Landsat images from 1989,2001,and 2014 were classified with maximum likelihood classification to produce land cover maps and identify four types of land cover:urban/built-up,agriculture,forest,and ***,the area coverage for all the land use types at different points in time were measured and combined with distance from the city *** on,urbanization densities from the city center to the outside for every 1-km distance from 1 to 50 km are ***:City density on the distance of 5,8,15,20,and 30 km was very high in the years 1989 and ***,urban expansion shows fast and slow growth stages with high-speed growth shifting to the east side of the ***:In general,the population,traffic conditions,industrialization,and policy are the major factors thatinfluenced the urban expansion.

关键词： Urbanization Landsat Change detection Remote Sensing GIS

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Extreme dependencies and spillovers between gold and stock markets:evidence from MENA countries

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Financial Innovation 2023年第1期9卷 1449-1475页

作者： Walid Mensi Debasish Maitra Refk Selmi Xuan Vinh vo Department of Economics and Finance College of Economics and Political ScienceSultan Qaboos UniversityMuscatOman Institute of Business Research University of Economics Ho Chi Minh CityHo Chi Minh CityVietnam Indian Institute of Management Indore IndoreIndia ESC Pau Business School PauFrance Institute of Business Research and CFVG University of Economics Ho Chi Minh CityHo Chi Minh CityVietnam

This study addresses whether gold exhibits the function of a hedge or safe haven as often referred to in *** contributes to the existing literature by(i)revisiting this question for the principal stock markets in the Middle East and North Africa(MENA)region and(ii)using the copula-quantile-on-quantile and conditional value at risk methods to detail the risks facing market participants provided with accurate information about various gold and stock market scenarios(i.e.,bear,normal,bull).The results provide strong evidence of quantile dependence between gold and stock *** correlations are found between MENA gold and stock markets when both are ***,when stock returns are bearish,gold markets show negative correlations with MENA stock *** risk spillover from gold to stock markets intensified during the global financial and European *** the risk spillover between gold and stock markets,investors in MENA markets should be careful when considering gold as a safe haven because its effectiveness as a hedge is not the same in all MENA stock *** and portfolio managers should rebalance their portfolio compositions under various gold and stock market ***,such precise insights about the heterogeneous linkages and spillovers between gold and MENA stock returns provide potential input for developing effective hedging strategies and optimal portfolio allocations.

关键词： Copula CoVaR Extreme dependence Gold MENA markets Risk spillovers

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Prediction of BRIC Stock Price Using ARIMA,SutteARIMA,and Holt-Winters

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Computers, Materials & Continua 2022年第1期70卷 523-534页

作者： Ansari Saleh Ahmar Pawan Kumar Singh Nguyen Van Thanh Nguyen Viet Tinh vo Minh Hieu Department of Statistics Faculty of Mathematics and Natural ScienccesUniversitas Negeri MakassarMakassar90223Indonesia School of Humanities and Social Sciences Thapar Institute of Engineering and TechnologyPatiala147004India Faculty of Commerce Van Lang UniversityHo Chi Minh City70000Vietnam

The novel coronavirus has played a disastrous role in many countries *** outbreak became a major epidemic,engulfing the entire world in lockdown and it is now speculated that its economic impact might be worse than economic deceleration and *** paper identifies two different models to capture the trend of closing stock prices in Brazil(BVSP),Russia(***),India(BSESN),and China(SSE),i.e.,(BRIC)*** predict the stock prices for three daily time periods,so appropriate preparations can be undertaken to solve these ***,we compared the ARIMA,SutteARIMA and Holt-Winters(H-W)methods to determine the most effective model for predicting *** stock closing price of BRIC country data was obtained from Yahoo *** data dates from 01 November 2019 to 11 December 2020,then divided into two categories-training data and test *** data covers 01 November 2019 to 02 December *** days(03December 2020 to 11December 2020)of datawas tested to determine the accuracy of the models using training data as a *** measure the accuracy of the models,we obtained the means absolute percentage error(MAPE)and mean square error(MSE).Prediction model Holt-Winters was found to be the most suitable for forecasting the Brazil stock price(BVSP)while MAPE(0.50)and MSE(579272.65)with Holt-Winters(smaller than ARIMA and SutteARIMA),model SutteARIMA was found most appropriate to predict the stock prices of Russia(***),India(BSESN),and China(SSE)when compared to ARIMA and *** andMSE with SutteARIMA:Russia(MAPE:0.7;MSE:940.20),India(MAPE:0.90;MSE:207271.16),and China(MAPE:0.72;MSE:786.28).Finally,Holt-Winters predicted the daily forecast values for the Brazil stock price(BVSP)(12 December to 14 December 2020 i.e.,115757.6,116150.9 and 116544.1),while SutteARIMA predicted the daily forecast values of Russia stock prices(***)(12 December to 14 December 2020 i.e.,3238.06,3241.54 and 3245.01),India stock price(BSESN)(

关键词： SutteARIMA Holt-Winters ARIMA stock price COVID-19

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Dynamic spillovers between the term structure of interest rates,bitcoin,and safe‑haven currencies

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Financial Innovation 2021年第1期7卷 1334-1358页

作者： David Y.Aharon Zaghum Umar Xuan Vinh vo Department of Business Administration Ono Academic CollegeZahal 104 Street5545173 Kiryat OnoIsrael College of Business Zayed UniversityAbu DhabiUAE Institute of Business Research University of Economics Ho Chi Minh CityHo Chi Minh CityVietnam

This study examines the connectedness between the US yield curve components(i.e.,level,slope,and curvature),exchange rates,and the historical volatility of the exchange rates of the main safe-haven fiat currencies(Canada,Switzerland,EURO,Japan,and the UK)and the leading cryptocurrency,the *** of the static analysis show that the level and slope of the yield curve are net transmitters of shocks to both the exchange rate and its *** exchange rate of the Euro and the volatility of the Euro and the Canadian dollar exchange rate are net transmitters of ***,the curvature of the yield curve and the Japanese Yen,Swiss Franc,and British Pound act mainly as net *** static connectedness analysis shows that Bitcoin is mainly independent of shocks from the yield curve’s level,slope,and curvature,and from any main currency *** findings hint that Bitcoin might provide hedging ***,similar to the static analysis,our dynamic analysis shows that during different periods and particularly in stressful times,Bitcoin is far from being isolated from other currencies or the yield curve *** dynamic analysis allows us to observe Bitcoin’s connectedness in times of *** supporting this contention is the substantially increased connectedness due to policy shocks,political uncertainty,and systemic crisis,implying no empirical support for Bitcoin’s safe-haven property during stress *** increased connectedness in the dynamic analysis compared with the static approach implies that in normal times and especially in stressful times,Bitcoin has the property of a *** results may have important implications for investors and policymakers regarding their risk monitoring and their assets allocation and investment strategies.

关键词： Bitcoin Term structure slope Curvature Diebold and Yilmaz Connectedness Cryptocurrency Forex Currencies Safe haven

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