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Arizona State University

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UC Santa Cruz

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University of Virginia

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Universidade Federal Rural de Pernambuco

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Moscow State University

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University of Malaya, Malaysia

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Flexible Render Medical Data in a Cda Document on Mobile Browsers

FAIR - NGHIÊN CỨU CƠ BẢN VÀ ỨNG DỤNG CÔNG NGHỆ THÔNG TIN - 2017, 2017

nghệ Thông tin và Truyền thông-Đại học Thái Nguyên 2 Viện Công nghệ Thông tin-Đại học Quốc gia Hà... more

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Health Literacy of Newly-Admitted Cancer Patients in Vietnam: Difficulties Understanding Treatment Options and Processing Health-Related Information

Health Services Insights, 2022

Having a good understanding of cancer patients’ health literacy in the early stage of diagnosis c... more Having a good understanding of cancer patients’ health literacy in the early stage of diagnosis can help to implement strategies to improve the management process and overall health outcomes. The study aims to describe health literacy and its association with socio-demographic characteristics among newly admitted cancer patients. A cross-sectional study was conducted on 262 newly admitted patients of a cancer hospital in Vietnam using the Vietnamese version of the HLS-SF12 questionnaire. Descriptive analytics and regression analysis were used to describe health literacy and examine associated factors. Older age, lower level of education, and living in rural areas were associated with lower health literacy while there was no significant relationship between gender and health literacy among newly admitted cancer patients. Many newly admitted patients, especially the older patients have difficulties understanding the different treatment options (54%) and evaluating the reliability of h...

Factors influence ease of use on Fintech adoption: Mediating by the role of attachment anxiety under Covid-19 pandemic

HO CHI MINH CITY OPEN UNIVERSITY JOURNAL OF SCIENCE - ECONOMICS AND BUSINESS ADMINISTRATION, 2021

In recent times, Fintech has developed rapidly along with the development of technology. The Covi... more In recent times, Fintech has developed rapidly along with the development of technology. The Covid-19 lockdown has created a huge opportunity in terms of increasing the number of users, and users’ experience. Previous studies have shown a number of factors affecting the use of financial technology services. However, what are the factors that are caused by the Covid-19 epidemic, and the ability to enhance competitive advantage and retain users is still lacking. Data were collected in Vietnam, comprising 247 respondents, and the SEM model was used to predict the effects. This study shows that users' users’ beliefs, security and privacy, web design of Fintech services, customer value, and attachment anxiety during prolonged lockdown without a feasible solution to date increase intention to adopt Fintech. Both theoretical and practical applications were discussed in this study.

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The first studies of small mammals of the Cham Chu and Bac Me Nature Reserves, north-eastern Vietnam

Russian Journal of Theriology, 2020

Field surveys of mammals in two protected areas of the northeastern limestone region of Vietnam, ... more Field surveys of mammals in two protected areas of the northeastern limestone region of Vietnam, the Cham Chu (Tuyen Quang Province) and Bac Me (Ha Giang Province) Nature Reserves were conducted in 2018 and 2019. Thirty-five species of small mammals were recorded based both on field observations and on morphological and/or molecular evidence, as follows: one Scandentia species, four Eulipotyphla species, 14 Chiroptera species, and 16 Rodentia species. New records of Aselliscus dongbacanus and Chiromyscus thomasi in northeastern Vietnam have been confirmed. Interestingly, the mole specimens collected during this study resemble Euroscaptor orlovi morphologically but significantly differ from it genetically. The present study has revealed that Chiroptera (38.9%) and Rodentia (47.2%) are the dominant groups in terms of their species diversity. Yet, the number of bat species is much lower as compared to that revealed by the previous study conducted in the same region (16 vs. 35). Although a couple of abundant species-Aselliscus dongbacanus (40 of 176 specimens) and Hipposideros cf. larvatus (37 of 176 specimens)-have been found during the present survey, other common species, such as Callosciurus inornatus and Rhizomys pruinosus, were very scarce, suggesting the occurrence of a severe anthropogenic pressure on small mammal fauna. More studies to assess a conservation status of and anthropogenic threats to small mammals are needed to protect them from serious population decline in the future.

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Quality of life among newly admitted patients to cancer hospital in Vietnam and associated factors

Health Psychology Open, 2020

A cross-sectional study was conducted among 262 newly admitted patients of a cancer hospital in V... more A cross-sectional study was conducted among 262 newly admitted patients of a cancer hospital in Vietnam. The Vietnamese version EORTC-30 questionnaire 3.0 was used to interviews patients during the first week after their admission. Lower global quality of life and physical functioning scores were significantly associated with older age, lung and gastrointestinal cancers. Emotional functioning score was lower among female patients as compared to males. Financial difficulty was an important preditor for almost all functional scales. Management of early symptoms, providing early emotional supports and appropriate policies to reduce financial difficulty are important to improve cancer patients’ quality of life.

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Upconversion Luminescence Properties of Gd2O3: Er3+ Nanospheres and Gd2O3: Er3+@Silica Nanocomposites

MATERIALS TRANSACTIONS, 2020

The upconversion luminescence (UCL) of Gd 2 O 3 : Er 3+ monodisperse nanospheres, synthesized by ... more The upconversion luminescence (UCL) of Gd 2 O 3 : Er 3+ monodisperse nanospheres, synthesized by multistep chemical method, and nanoparticles, produced by combustion synthesis, are presented for comparison. The UCL of nanospheres Gd 2 O 3 : Er 3+ and Gd 2 O 3 : Er 3+ @Silica have shown strong red or green emission under excitation at 976 nm or 980 nm by a diode laser with a remarkable increase of the bright red color in the nanospheres. In the core/shell structured nanospheres Gd 2 O 3 : Er 3+ @Silica, we find a higher intensity of upcoversion emission, increased stability and better dispersion capability in solvents and water. The UCL intensities of green and red color while 976 nm or 980 nm excitation were dependent on the diode laser power. The slope values of Er 3+ ion's transitions 2 H 11/2 4 I 15/2 , 4 S 3/2 4 I 15/2 and 4 F 9/2 4 I 15/2 in the silica-coated nanospheres are 1.99, 1.62 and 1.66 respectively, which properly indicate the two-photon mechanism of upconversion emission. The synthesized Gd 2 O 3 nanospheres codoped with Yb and Er show strong UCL intensity than those of Gd 2 O 3 : Er 3+. The obtained Gd 2 O 3 : Er 3+ nanospheres and nanoparticles, as well as Gd 2 O 3 : Yb 3+ , Er 3+ and its silica-coated versions, are promising materials to develop with potential application in high technology and biomedicine.

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Assessing mammal diversity in Xuan Lien Nature Reserve using molecular approaches

TAP CHI SINH HOC, 2016

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Doxorubicin hydrochloride-oleic acid conjugate loaded nanostructured lipid carriers for tumor specific drug release

Colloids and surfaces. B, Biointerfaces, Jan 13, 2016

The hydrophilic drug Doxorubicin hydrochloride (DOX) paired with oleic acid (OA) was successfully... more The hydrophilic drug Doxorubicin hydrochloride (DOX) paired with oleic acid (OA) was successfully incorporated into nanostructured lipid carriers (NLCs) by a high-pressure homogenization (HPH) method. Drug nanovehicles with proper physico-chemical characteristics (less than 200nm with narrow size distribution, spherical shape, layered internal organization, and negative electrical charge) were prepared and characterized by dynamic light scattering, zeta potential measurements, transmission electron microscopy, small-angle X-ray scattering and differential scanning calorimetry. The drug loading and entrapment efficiency of DOX-OA/NLCs were 4.09% and 97.80%, respectively. A pH-dependent DOX release from DOX-OA/NLCs, i.e., fast at pH 3.8 and 5.7 and sustained at pH 7.4, was obtained. A cytotoxicity assay showed that DOX-OA/NLCs had comparable cytotoxicity to pure DOX and were favorably taken up by HCT 116 cells. The intracellular distribution of DOX was also studied using a confocal la...

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Nanosciences and Nanotechnology of Vietnamese Women: Fabrication, Characterization, and Application of Rare Earth Nanocompounds for Photonics

AIP Conference Proceedings, 2009

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Baicalin loaded in folate-PEG modified liposomes for enhanced stability and tumor targeting

Colloids and surfaces. B, Biointerfaces, Jan 17, 2015

Bioavailability of baicalin (BAI), an example of traditional Chinese medicine, has been modified ... more Bioavailability of baicalin (BAI), an example of traditional Chinese medicine, has been modified by loading into liposome. Several liposome systems of different composition i.e., lipid/cholesterol (L), long-circulating stealth liposome (L-PEG) and folate receptor (FR)-targeted liposome (L-FA) have been used as the drug carrier for BAI. The obtained liposomes were around 80nm in diameter with proper zeta potentials about -25mV and sufficient physical stability in 3 months. The entrapment efficiency and loading efficiency of BAI in the liposomes were 41.0-46.4% and 8.8-10.0%, respectively. The morphology details of BAI lipsosome systems i.e., formation of small unilamellar vesicles, have been determined by cryogenic transmission electron microscopy (cryo-TEM) and small angle X-ray scattering (SAXS). In vitro cytotoxicity of BAI liposomes against HeLa cells was evaluated by MTT assay. BAI loaded FR-targeted liposomes showed higher cytotoxicity and cellular uptake compared with non-targ...

Growing a better future: Expanding voices, choices and rights for small-scale farmers in Vietnam

ABSTRACT

A cyclic steady-state method for fatigue crack propagation: Evaluation of plasticity-induced crack closure in 3D

International Journal of Solids and Structures, 2012

The numerical study of plasticity-induced crack closure using the node-release technique presents... more The numerical study of plasticity-induced crack closure using the node-release technique presents many difficulties widely studied in literature. For instance various rules, proposed for overcoming mesh sensitivity, are challenged by more recent studies. This paper intends to propose and evaluate a numerical method for the investigation of crack propagation under fatigue loading, and particularly for the assessment of plasticity-induced crack closure in three-dimension. The method is an extension of the ''steadystate method'' to cyclic loadings. The steady-state method allows a direct computation (on a fixed mesh, without releasing nodes) of stress and strain fields around the crack tip and in the wake for a steady crack growth. The method is extended to simulate crack propagation under fatigue loading. Therefore it constitutes a valuable numerical tool for gaining insight into the physics of crack propagation, as it provides accurate mechanical fields around the crack tip and their relation with crack growth rate, various loading modes and parameters. The proposed method is also compared with the classical node-release technique. A very good agreement between the two methods is found. However the steady-state method needs much less mesh refinement and computational time. Following an analysis of some features of the fatigue crack, a discussion on a crack closure criterion is opened, and a reliable criterion for the determination of local crack closure is proposed.

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A Data Transferring Model for Micro-scale Urban Air Quality Management System

2009 International Conference on New Trends in Information and Service Science, 2009

Today, the environmental observing systems are no longer strange to the people, and they are play... more Today, the environmental observing systems are no longer strange to the people, and they are playing an important role in e-sciences, especially in researches about earthquake, climate, air pollution, etc. To be named as Airscope, this micro-scale air quality management system deals with unexpected pollution events in small scope, by using CFD-based air quality modeling, USN-based sensor monitoring model, DataTurbine middleware, multi-model interaction platforms and devices. Because of these complicated heterogeneity tools and devices, data transferring inside this project is very important and is a backbone for the whole system. In this paper, we will briefly introduce Airscope project and its elements, our indoor testbed and especially the data flows inside. We also describe about an extended actual system to apply in reality such as a small area in modern urban.

Performance analysis for 180°receiver in visible light communications

Abstract The paper presents the concept, design and analysis for a visible light communications r... more Abstract The paper presents the concept, design and analysis for a visible light communications receiver which has a full 180 perception angle thus offering the guard against blocking and enhancing the system mobility. The proposed receiver includes seven sub-receivers with the proposed geometrical shape investigated and analyzed in MATLAB® for evaluating the received power, RMS delay spread and corresponding signal to noise ratio. The results show that the receiver is fully mobile within the test area and can handle ...

AirScope: A Micro-scale Urban Air Quality Management System

Lecture Notes in Computer Science, 2010

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Photoconduction in poly(3-alkylthiophene) II. Charge transport

Synthetic Metals, 1993

Hole motion in poly(dodecylthiophene) has been investigated by means of time of flight (TOF) stud... more Hole motion in poly(dodecylthiophene) has been investigated by means of time of flight (TOF) studies and space charge limited conduction involving hole injection from a gold anode. The decrease of the hole mobility with temperature above 290 K parallels the increase of disorder manifest in the absorption spectra. At lower temperatures TOF signals become dispersive. The results are interpreted in terms of hopping motion within an energetically random array of hopping sites formed by ordered chain segments. The polaron contribution towards the activation energy for charge carrier motion is found negligible relative to the disorder contribution.

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Preparation and optical properties of one dimensional nano hydroxides and oxides

Springer Proceedings in Physics

Abstract. The Yttrium hydroxide nanotubes and nanorods as well as the ZnO nanorods and nanowires ... more

Silica-Based Photonic Materials for Integrated Optics

APPC 2000, 2001

The quality of the controllable optical index films based on silica photonic materials for integr... more The quality of the controllable optical index films based on silica photonic materials for integrated optics depends mainly on the thermal treatment. The microstructural properties of TiO2 in (1-X) SiO2 XTiO2 system during the curing process were elucidated by using of the thermo-, X-ray analysis, and MicroRaman. In regard to active materials, the fluorescence spectra and it&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s lifetime of Eu

Design and Fabrication of a Miniaturized Three-Degree-of-Freedom Piezoresistive Acceleration Sensor Based on MEMS Technology Using Deep Reactive Ion Etching

Springer Proceedings in Physics

... Vu Ngoc Hung1, Nguyen Van Minh1 , Le Van Minh1 , Nguyen Huu Hung1 , Chu Manh Hoang1 , Dzung .... more

Wet Chemical Preparation of Nanoparticles ZnO:Eu3+ and ZnO:Tb3+ with Enhanced Photoluminescence

Journal of Photonics, 2014

ZnO doped with Eu3+ and Tb3+ had been successfully prepared by wet chemical method with the assis... more ZnO doped with Eu3+ and Tb3+ had been successfully prepared by wet chemical method with the assistance of microwave. The influence of reaction conditions such as temperature, time, content of Eu3+, Tb3+ ion, and annealing treatment on the structure and luminescent characteristics was studied. The analysis of energy dispersive spectroscopy (EDS) and photoluminescence spectra measurements indicated that Eu3+ and Tb3+ exist in host lattice and create the new emission region compared to ZnO crystalline host lattice. The field emission scanning electron microscope (FE-SEM) studies show the Eu3+, Tb3+ doped ZnO nanoparticles have a pseudohexagonal shape. The particle size was 30–50 nm for ZnO:Eu3+ and 40–60 nm for ZnO:Tb3+. Photoluminescence excitation (PLE) and photoluminescence (PL) spectra at room temperature have been studied to recognize active centers for characteristic luminescence of ZnO:Eu3+ and ZnO:Tb3+. The characteristic luminescent lines of Eu3+ (5D0-7Fj) and Tb3+ (5D4-7Fj) w...

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Flexible Render Medical Data in a Cda Document on Mobile Browsers

FAIR - NGHIÊN CỨU CƠ BẢN VÀ ỨNG DỤNG CÔNG NGHỆ THÔNG TIN - 2017, 2017

nghệ Thông tin và Truyền thông-Đại học Thái Nguyên 2 Viện Công nghệ Thông tin-Đại học Quốc gia Hà... more

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Health Literacy of Newly-Admitted Cancer Patients in Vietnam: Difficulties Understanding Treatment Options and Processing Health-Related Information

Health Services Insights, 2022

Factors influence ease of use on Fintech adoption: Mediating by the role of attachment anxiety under Covid-19 pandemic

HO CHI MINH CITY OPEN UNIVERSITY JOURNAL OF SCIENCE - ECONOMICS AND BUSINESS ADMINISTRATION, 2021

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The first studies of small mammals of the Cham Chu and Bac Me Nature Reserves, north-eastern Vietnam

Russian Journal of Theriology, 2020

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Quality of life among newly admitted patients to cancer hospital in Vietnam and associated factors

Health Psychology Open, 2020

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Upconversion Luminescence Properties of Gd2O3: Er3+ Nanospheres and Gd2O3: Er3+@Silica Nanocomposites

MATERIALS TRANSACTIONS, 2020

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Assessing mammal diversity in Xuan Lien Nature Reserve using molecular approaches

TAP CHI SINH HOC, 2016

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Doxorubicin hydrochloride-oleic acid conjugate loaded nanostructured lipid carriers for tumor specific drug release

Colloids and surfaces. B, Biointerfaces, Jan 13, 2016

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Nanosciences and Nanotechnology of Vietnamese Women: Fabrication, Characterization, and Application of Rare Earth Nanocompounds for Photonics

AIP Conference Proceedings, 2009

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Baicalin loaded in folate-PEG modified liposomes for enhanced stability and tumor targeting

Colloids and surfaces. B, Biointerfaces, Jan 17, 2015

Growing a better future: Expanding voices, choices and rights for small-scale farmers in Vietnam

ABSTRACT

A cyclic steady-state method for fatigue crack propagation: Evaluation of plasticity-induced crack closure in 3D

International Journal of Solids and Structures, 2012

Download

A Data Transferring Model for Micro-scale Urban Air Quality Management System

2009 International Conference on New Trends in Information and Service Science, 2009

Performance analysis for 180°receiver in visible light communications

AirScope: A Micro-scale Urban Air Quality Management System

Lecture Notes in Computer Science, 2010

Download

Photoconduction in poly(3-alkylthiophene) II. Charge transport

Synthetic Metals, 1993

Download

Preparation and optical properties of one dimensional nano hydroxides and oxides

Springer Proceedings in Physics

Abstract. The Yttrium hydroxide nanotubes and nanorods as well as the ZnO nanorods and nanowires ... more

Silica-Based Photonic Materials for Integrated Optics

APPC 2000, 2001

Design and Fabrication of a Miniaturized Three-Degree-of-Freedom Piezoresistive Acceleration Sensor Based on MEMS Technology Using Deep Reactive Ion Etching

Springer Proceedings in Physics

... Vu Ngoc Hung1, Nguyen Van Minh1 , Le Van Minh1 , Nguyen Huu Hung1 , Chu Manh Hoang1 , Dzung .... more

Wet Chemical Preparation of Nanoparticles ZnO:Eu3+ and ZnO:Tb3+ with Enhanced Photoluminescence

Journal of Photonics, 2014

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