Nguyễn Hoàng Tiến

• Ho Chi Minh City University of Science

Shopping applications have a tremendous influence on client purchasing behavior in the e-commerce era. This research focuses on finding out what elements influence customers' online buying behavior, and there are six of them: Perceptions of utility, perceived ease of use, app design, payment system, epistemic and external influence were discovered....

Global mineral extraction is expected to surge due to the growing demand for clean energy transition. While mining is critical to modern society, its environmental impacts—often documented at local or regional scales—remain underexplored at the commodity level. Here, we introduce a novel approach integrating remote sensing, machine learning, and cl...

The article provides an overview of the potential and current status of exploitation and use of renewable energy sources in the world's oceans. This is also an inevitable trend in the strategy of developing a blue ocean economy, a prioritized scientific and technological task of long-term strategic significance for all countries in the world. Vietn...

Heating, ventilation and air-conditioning (HVAC) accounts for around 40% of the total building energy con¬sumption. It has therefore become a major target for reductions, in terms of both energy usage and CO2 emissions. In the light of progress in building intelligence and energy technologies, traditional methods for HVAC optimi¬zation, control, an...

The purpose of this article is to determine the factors affecting the startup intention of lecturers at the Faculty of Science and Computer Science at the Van Lang University, Ho Chi Minh City. This study is based on the theoretical basis and research method to provide research results from which to conclude the factors affecting lecturers' intenti...

The purpose of this article is to determine the factors affecting the startup intention of lecturers at the Faculty of Business Administration at the Foreign Trade University, Ho Chi Minh City. This study is based on the theoretical basis and research method to provide research results from which to conclude the factors affecting lecturers' intenti...

Research to analyze factors affecting career opportunities of lecturers at the Van Lang University in Ho Chi Minh City with the aim of aiming at educational work and teaching effectiveness at universities in general and Van Lang University in particular. To ensure accurate research based on data survey, it is carried out through Cronbach'alpha reli...

In this study, the phytochemical compositions and α ‐glucosidase inhibitory activity of the ethyl acetate extract derived from the unripe fruits of Solanum torvum Swartz have been investigated. The investigation led to the isolation of a new isoferulate fatty alkyl ester, solacanin B ( 1 ), in addition to eight known compounds, including lyciumol A...

We study the optimal convergence rate for the homogenization problem of convex Hamilton–Jacobi equations when the Hamitonian is periodic with respect to spatial and time variables, and notably time-dependent. We prove a result similar to that of (Tran and Yu (2021)), which means the optimal convergence rate is also O ( ε ).

To determine the factors affecting student satisfaction with the quality of training services at Van Lang University, the author relies on the research model of previous related studies, thereby building a research model and measuring factors affecting student satisfaction. With a research sample size of 320 and using SPSS 20.0 statistical software...

The integration of renewable energy sources into smart grid systems is crucial for achieving a sustainable and efficient energy future. However, this integration presents various challenges due to the intermittent and variable nature of renewable energy, grid stability and reliability issues, infrastructure limitations, and regulatory hurdles. This...

Artificial intelligence (AI) is transforming supply chain planning and decision making, enabling organizations to tackle the complexities of modern supply chains. This article explores the various applications of AI in supply chain management, including demand forecasting, inventory optimization, transportation and logistics optimization, supplier...

Artificial intelligence (AI) has become an indispensable tool in the education industry, playing a decisive role in creating innovative and advanced learning opportunities for students in Vietnam. Under the influence of AI, the education industry is undergoing a potential digital transformation, bringing great benefits to both students and teachers...

Artificial intelligence (AI) has emerged as a transformative technology, revolutionizing various aspects of business operations, including human resources (HR) management. This study aims to analyze the impact of AI on the HR recruitment process in businesses located in Hanoi, Vietnam. Through a mixed-methods approach, involving surveys and in-dept...

Đặt vấn đề: Viêm phổi bệnh viện đứng thứ hai trong các bệnh lý nhiễm trùng tại bệnh viện, tăng chi phí và gánh nặng bệnh tật. Bệnh nhân đái tháo đường típ 2 dễ mắc nhiều bệnh nhiễm trùng trong đó có viêm phổi và có nguy cơ cao xuất hiện viêm phổi bệnh viện. Mục tiêu nghiên cứu: 1) Khảo sát tỉ lệ vi khuẩn gây viêm phổi bệnh viện ở bệnh nhân đái tháo...

This study enriches the current literature because it is the first to examine how foreign ownership and Investor attention affect the risk-taking behaviors of property and casualty insurance companies in Vietnam. This study is unique because it tests whether foreign ownership moderates the relationship between investor attention and the risk-taking...

During and probably after the period of COVID-19 pandemic, online purchase has becoming increasingly and widely accepted by SMEs and households as a mode of carrying out business transactions. Using SPSS 25 and AMOS 24 software, this study has collected and analysed data from several hundred SMEs and households in Vietnam. Based on that, several re...

Today, the demand for craft beer production and consumption in Vietnam and around the world is increasing. Research on the craft beer production process with buckwheat malt addition aimed to investigate the basic parameters affecting the production process such as the germination conditions for buckwheat malt production, buckwheat malt addition rat...

The purpose of this article is to determine the factors affecting the education quality of lecturers at the Faculty of Business Administration at the University of Economics, Ho Chi Minh City. This study is based on the theoretical basis and research method to provide research results from which to conclude the factors affecting lecturers' educatio...

Green practices are now treated as an essential component of organizational element and firms are now exploring ways to incorporate new growth strategies that ensure environmentally friendly methods. The present study focuses on manufacturing industry in China and identify that green HRM practices influence eco-innovation and organization’s knowled...

One of the current directions for sustainable development is to use waste resources to create materials that reduce environmental pollution. In this study, multi-walled carbon nanotubes (MWCNT) and their oxygen-functionalized forms (HNO3/H2SO4-oxidized MWCNT, NaOCl-oxidized MWCNT, and H2O2-oxidized MWCNT) were first synthesized from activated carbo...

Demand for food products, often from international trade, has brought agricultural land use into direct competition with biodiversity. Where these potential conflicts occur and which consumers are responsible is poorly understood. By combining conservation priority (CP) maps with agricultural trade data, we estimate current potential conservation r...

In this work, a novel La-doped βPbO2 (Ti/SnO2-Sb/La-βPbO2) was prepared using electrodeposition method and applied to the degradation of prednisolone (PRD), 8-Hydroxyquinoline (8-HQ), and other typical organic pollutants. Compared with the conventional electrode Ti/SnO2-Sb/βPbO2, La2O3 doping enhanced oxygen evolution potential (OEP), reactive surf...

The development of the Industrial Revolution 4.0 has far-reaching effects on all aspects of life, the economy, and society, bringing various growth opportunities for businesses. However, businesses are still hesitant to apply these new technologies. On a research sample from a survey of 396 Vietnamese enterprises, the study uses the SEM-neural netw...

The present study provides an eco-friendly and economical way to recycle discarded cigarette butts (CBs). The raw CBs were treated with NaOH (CB-B) and integrated with chitosan (Cs), and further applied as an adsorbent for the removal of synthetic dyes. Two common cationic dyes of methylene blue (MB) and crystal violet (CV) and one anionic dye of r...

About 40% of the energy used in buildings is used for heating, ventilation, and air conditioning (HVAC). As a result, it has emerged as a key area for reduction in both energy use and CO2 emissions. Traditional approaches to HVAC optimization, control, and fault diagnosis will find it difficult to satisfy crucial needs like energy efficiency, occup...

We study the optimal convergence rate for homogenization problem of convex Hamilton-Jacobi equations when the Hamitonian is periodic with respect to spatial and time variables, and notably time-dependent. We prove a result similar to that of [8], which means the optimal convergence rate is also $O(\varepsilon)$.

In this study, the kinetic degradation of several typical organic pollutants was performed on a synthetic electrode (Ti/SnO2–Sb/Co-βPbO2). The surface structure and the electrochemical properties of the prepared electrode were investigated, confirming the successful preparation of the electrode using an electrochemical deposition method. The outer...

The boron-doped diamond electrode has been widely applied in electrochemical process for wastewater treatment based on the generation of hydroxyl radicals (•OH). This study investigated the formation efficiency of 2-HTA through the interaction between •OH radical and terephthalic acid (TA) to monitor the •OH formation. Results show that the 2-HTA f...

This study investigated the kinetic degradation of methylene blue (MB) by a UV/chlorine process and its combination with other advanced oxidation processes. The ∙OH and reactive chlorine species (RCS: Cl∙, ClO∙, etc.) were the primary reactive species, which accounted for 56.7% and 37.6% of MB degradation at pH 7, respectively. The second-order rat...

The kinetic degradation of clothianidin (CLO) (in Dantuso 50 WG) during electrochemical oxidation (EO) process using sulfate- and chloride-supporting electrolytes was comprehensively investigated. The degradation of CLO was not due to direct electron oxidation, but was mainly due to •OH and other radicals generated from supporting electrolytes. The...

Research to analyze factors affecting job satisfaction of lecturers at Ho Chi Minh City University of Economics with the aim of aiming at educational work and teaching effectiveness at schools. universities in general and Ho Chi Minh City University of Economics in particular. To ensure accurate research based on data survey, it is carried out thro...

Currently, we see that the quality of higher education is an issue that many people are concerned about, and is increasingly attracting the attention of the entire society. So what is quality education? It can be said that "quality of education is its conformity with educational goals". Educational goals represent society's demands on people, creat...

Initiated chemical vapor deposition (iCVD) is a reactive process that creates polymeric materials on a surface from vapor‐phase monomers and thermal initiators. Our iCVD synthesis of poly(perfluorodecyl acrylate) (PPFDA) resulted in the growth of micro‐ and nano‐worms normal to the surface. The micro‐ and nanostructures of the worms directly depend...

This study investigated the degradation of methylene blue (MeB), methyl orange (MeO), and rhodamin B (RhB) by the UV/Persulfate (UV/PS) process. The dye degradation in the investigated UV-based Advanced Oxidation Processes (UV/AOPs) followed the first-order kinetic model. The second-order rate constant of the dyes with •OH, SO4•−, and CO3•- were ca...

Highly liquid repellent (superhydrophobic, superoleophobic) surfaces are fabricated using mostly top‐down approaches and liquid‐based processing. Top‐down approaches, like lithography and templating, are highly process‐intensive, while liquid‐based processing, like etching and fluoropolymer solution coating, rely on solvents that often damage the s...

Vietnam's economy is currently an open economy. Vietnam is actively joining world economic organizations such as WTO, AFTA, etc. Therefore, every business operating in the economy must comply with regulations market law, competition law. In order to gain a competitive advantage, enterprises must know how to maximize their advantages and consider in...

In the current globalization context, opening up, economic and cultural exchanges with other countries is inevitable and risks in the market for businesses are not small. Therefore, SWOT analysis will help businesses "weigh-measure-count" correctly before deciding to enter the international market. Because the SWOT analysis model is a subjective as...

Vietnam's economy is currently an open economy. Vietnam is actively joining world economic organizations such as WTO, AFTA, etc. Therefore, every business operating in the economy must comply with market and competition law and regulations. In order to gain a competitive advantage, enterprises must know how to maximize their advantages and consider...

The synthesis of TiO 2 -chitosan-glycerol (TiCsG) beads was prepared to determine the optimum condition for dye removal under natural sunlight. By using the orthogonal array design with five parameters (ratio of TiO 2 /Chitosan, initial concentration of dyes, pH of solution, irradiation time, dose of TiCsG) to analyze their interaction such as well...

Being adopted in 1980 and getting effective from January 1, 1988, The United Nations Convention on Contracts for the International Sale of Goods (CISG) has become one of the most widely accepted international trade treaties. Despite its validity in Vietnam since the beginning of 2017, the Convention is still applied in a very limited way by domesti...

Deforestation, a significant threat to biodiversity, is accelerated by global demand for commodities. Although prior literature has linked deforestation to global supply chains, here we provide a fine-scale representation of spatial patterns of deforestation associated with international trade. Using remote sensing data and a multi-region input–out...

This study investigates the dynamics of Circular Economy (CE) practices in Small and Medium-sized Enterprises (SMEs), emphasizing their critical role in promoting sustainability. As we investigate the many implications on SMEs' adoption of CE, we pay special attention to the diverse consequences of internal and external stakeholder pressure. Furthe...

In this study, the optimum conditions and the synergistic effects of TiO2/chitosan/glycerol photocatalyst (TCGB) in color and COD removal from Azo dye and a secondary effluent of dyeing and textile wastewater were investigated. In order to optimize conditions of the dye photocatalytic degradation of TCGB, acid blue 193 (AB 193) was used as an indic...

Aromatic compounds can be efficiently degraded using boron-doped diamond (BDD) anodes by the anodic oxidation based on the generation of hydroxyl radicals (•OH). In this study, the degradation of Cartap in Padan 95SP (a pesticide) by BDD via the reaction between Cartap and oxidizing species (such as hydroxyl radicals, active chlorine, and persulfat...

The electro-Fenton process combined with a boron-doped diamond-positive electrode in a one-compartment cell has shown efficient degradation of Cartap (95% in Padan 95SP) by hydroxyl radicals (•OH) generated in the electro-Fenton and the electrochemical oxidation processes. The influence of added NaOCl in a pretreatment step, effects of H2O2 concent...

Given that national pledges are likely insufficient to meet Paris GHG reduction targets, increasingly actors at the city and state level are looking for options on how local government can contribute to reducing GHG emissions. For a typical city only one third to half of their full Scope 3 carbon footprint (CF) is emitted within the jurisdiction, w...

Highly pathogenic porcine reproductive and respiratory syndrome virus (HP-PRRSV) is characterized by high fever, respiratory distress, and high mortality in pigs of all ages and has severely affected the Vietnam pork industry in recent years. The study was conducted to compare the efficacy, safety, and overall performance of a modified live PRRSV-2...

The physical and electrochemical behaviors of BDD electrode are clarified in this work. The surface morphology of BDD is investigated by scanning electron microscopy (SEM) before and after electrolysis in different conditions. There is not any corrosion found on the surface based on the studies of SEM and electrochemical corrosion process. The cont...

Regarding Alzheimer’s disease (AD) is one of the main causes of dementia symptoms in the elderly, in the line of finding new γ-secretase modulators (GSMs) for its treatment, the 3D-pharmacophore, 2D-QSAR, machine learning and docking were built with database of 137 γ-secretase modulators and crystal structure 6IYC by the softwares LigandScout 4.3,...

Submersed macrophytes are key elements of shallow coastal ecosystems but globally declined due to anthropogenic disturbances and climate change. Foliar elemental and isotopic compositions of macrophytes are being increasingly used to identify nutritional status and environmental conditions including potential stress factors, thereto insight is requ...

In recent years, toxic pollutants in industrial wastewater are seriously considered as one of the environmental problems due to the heavy metals present in it. Currently, biosorption has been strongly recommended by researchers as an efficient and economical technique to reduce the amount of heavy metals in the different industrial wastewater sourc...

This dissertation describes electrochemical oxidation of Padan 95 SP on Boron-doped diamond (BDD) electrode mainly by •OH radicals (which was measured by indirect method, i.e: the formation of 2-Hydroxylterephthalic acid (2-HTA)), Electro-Fenton and the combination with adsorption technology for increasing total organic carbon (TOC) removal efficie...

Diversity and productivity of primary producers are known to be influenced simultaneously by resource availability and resource ratio, but the relative importance of these two factors differed among studies and so far only entire phytoplankton communities were investigated which might ignore specific nutrient requirements and stoichiometric plastic...

Avicennia officinalis L., Avicenniaceae,is a widespread plant in mangrove forests in Vietnam, Cambodia, Thailand, Indonesia,… A. officinalis’s chemical compositions remain mostly unknown. Therefore, we now report on the structural elucidation of six compounds isolated from this plant growing in Can Gio mangrove forest in Ho Chi Minh City by using a...

R is a free programming language that has been widely used by statisticians and data miners for statistical software development and data analysis. The number of contributed packages for handling and analyzing spatial data has significantly increased over the last 15 years. This paper reviews the potential for spatial data analysis using R programm...

Bid rigging prevents public procurers from obtaining the best value for money. While public procurers are advised to be vigilant as to bid rigging in public markets, public procurement rules as well as administrative practices of public procurement authorities, are integral contributors to the formation and stability of bid rigging. By looking at f...

We consider the following class of equations of (gKdV) type $$\partial_t u + \partial_x (\partial_x^2 u + |u|^{p-1}u) = 0, \quad p\mbox{ integer},\quad t,x \in \mathbb{R}$$ with mass sub-critical ($2< p<5$) and mass super-critical nonlinearities ($p> 5$). We prove the existence of 2-solitary wave solutions with logarithmic relative distance, i.e. s...

This study posits that the declining industry is a good institutional environment to examine the relationship between ownership structure and firm performance of Vietnamese securities firms. This downturn decreases the return on investment of the industry and creates incentives for managers to expropriate shareholders more severely. In addition, di...

Hyperspectral remote sensing is more effective than multispectral remote sensing in many application fields because of having hundreds of observation bands with high spectral resolution. However, hyperspectral remote sensing resources are limited both in temporal and spatial coverage. Therefore, simulation of hyperspectral imagery from multispectra...

A review of the oribatid mites of the genus Papillacarus Kunst, 1959 (Oribatida: Lohhmanniidae) in Vietnam, with remarks on the taxonomic status of P. arboriseta, is presented. The article provides also a key to nine species recorded in Vietnam, namely P. arboriseta Jeleva et Vu, 1987, P. benenensis Vu, Ermilov et Dao, 2010, P. cornutus (Sarkar et...

The correlates of troponin positivity were assessed in 423 consecutive patients with an acute coronary syndrome and an identifiable culprit lesion. Complex lesions (disrupted plaques and/or intracoronary thrombus) were found in 72% of troponin-positive patients versus 41% of troponin-negative patients, strengthening the association between intracor...

In 61 patients undergoing coronary intervention, the antithrombin activity of standard dose abciximab (n = 31) and weight-adjusted heparin was compared with the RE-STORE dose tirofiban (n = 30) and the same dose of weight-adjusted heparin. Serial measurements of the activated clotting time, prothrombin fragment F1.2, and GP IIb/IIIa receptor occupa...

Thesis (M.S.)--University of Vermont, 1999. Includes bibliographical references (leaves 63-67).