Key Determinants and the Effects of Perceived Value on Online Repurchase Intention of E-Commerce in Vietnam

Nguyen,Ngoc Duy Phuong,Nguyen,Duy Long 한국유통과학회 2019 KODISA ICBE (International Conference on Business Vol.2019 No.-

The purpose of this paper is to explore how customers’ repurchase intention of e-commerce in Viet Nam which is considered as a potential country in developing this field. This paper focuses to the effects of perceived value on online repurchase intention of e-commerce in Vietnam and what key determinants affect to the perceived value. To test the proposed hypotheses, the quantitative method is applied to collect the data. The partial least square (PLS) was used as a technique to analyze the data included the measurement as well as structural model. Data from this research collected from 261 Vietnamese online shoppers who have already purchased in E-commerce in Vietnam.

The Effect of Country-of-Origin on Customer Purchase Intention: A Study of Functional Products in Vietnam

Nguyen,Ngoc Duy Phuong,Nguyen,Tien Dat 한국유통과학회 2019 KODISA ICBE (International Conference on Business Vol.2019 No.-

This paper examines key determinants and the effect of country-of-origin on customer’s purchase intention of functional food and dietary supplement product in Vietnam. Data was collected from a survey of 242 Vietnamese who have experienced in buying functional and supplement food. This paper employed partial least square (PLS) as a technique used to analyze the measurement and structural models. The findings provide evidence that social prestige customer perceives and their positive attitude toward functional food which are main factors influencing on consumers’ purchase intention. Customer’s perceived prestige plays an important role in decision-making process to purchase. The higher social prestige taken up in consumers’ mind, the higher consumers’ purchase intention is. Moreover, the more positive attitude customer holds toward functional food, the higher consumers’ purchase intention. The research results provide useful information in current understanding of what antecedents determine factors influencing customer’s intention to purchase functional food and lead to managerial implications for business strategies.

A Partial Least Squares Path Model of Repurchase Intention in Smartphone-based Ride Hailing Service

Nguyen,Ngoc Duy Phuong,Tran,Thi Dai Trang 한국유통과학회 2019 KODISA ICBE (International Conference on Business Vol.2019 No.-

The aims of this study are applying the Perceived value model and employing the three factors defining service quality of information system from DeLone and McLean’s success model to identify the key factors affecting repurchase intention in smartphone-based ride hailing service. The research framework was examined with 427 valid respondents from Grab and Uber customers in Vietnam. Partial Least Square (PLS) employed to analyze the measurement and structural model. The statistical results support all seven proposed hypotheses. The study confirm that service quality and electronic service quality of information system are significant predictors of overall perceived service quality. In addition, when customer perceives the service quality outweighs their sacrifices, the perceived value increase, subsequently results in higher repurchase intention towards smartphone-based ride-hailing service. Overall, other variables account for 51.1% of variance of repurchase intention. The study confirms the relationships of the three variables represent the electronic service quality and service quality with the overall service quality, which directly effects to perceived value, considering a more comprehensive model for service in m-commerce context.

Distribution of Factors Affecting Foreign Direct Investment in ASEAN Countries

Anh Thi Lan NGUYEN(Anh Thi Lan NGUYEN ),Chau Thi Minh PHAM(Chau Thi Minh PHAM ),Hanh Hong NGUYEN(Hanh Hong NGUYEN ),Dat Ngoc NGUYEN(Dat Ngoc NGUYEN ),Duy Van NGUYEN(Duy Van NGUYEN ) 한국유통과학회 2023 유통과학연구 Vol.21 No.2

Purpose: Research on attracting foreign direct investment plays an important role in ASEAN countries. ASEAN has needed FDI capital for development and integration with many developing countries. Research design, data and methodology: This study is conducted to assess the impact of factors: inflation (INF), economic growth (GDP), population (POP), and trade (TRADE) on attracting foreign direct investment (FDI) of ASEAN countries. The study will find out how factors distribution contributes to FDI attraction. The study collects data from 10 ASEAN countries from 2010 to 2020. With data collected for ten countries from 2010 to 2020, data analysis with panel data will be used in this study. The Regression with Driscoll-Kraay standard errors correction model will be used in the study. Results: Panel data analysis shows that economic growth and population positively impact FDI attraction in ASEAN countries. However, two factors: INF and TRADE, do not affect FDI. Conclusions: Countries need to focus on economic development, create many good conditions for people and domestic enterprises and create opportunities for foreign investors to pay more attention. improving the quality of domestic human resources will help to better improve the working quality factor when the demand for high-quality human resources increases.

Key Determinants of Repurchase Intention toward Organic Cosmetics

Phuong Ngoc Duy NGUYEN,Vinh Tan NGUYEN,Nguyen Ngoc Thao VO 한국유통과학회 2019 The Journal of Asian Finance, Economics and Busine Vol.6 No.3

This paper aims to discover factors and their influences degree to repurchase organic cosmetic in Vietnam. In addition, this research also discloses the main segments that have high demand re-buying intention based on demographic groups of gender, age, income, educational level, job, type of products, and place of production. Twenty-eight scale was designed based on previous studies and adjusted to match the 5-point Likert scale to conduct measurement. By using survey method to test hypotheses and set up conceptual models to collect 295 Vietnamese consumers who have experience in consuming organic cosmetic by explain the results through Smart PLS software. The findings show that there is positive attitude of customers to the intention of acquiring organic cosmetics, green perceived and customer satisfaction. In addition, customer satisfaction, knowledge of products, safety values, and environmental protection consciousness also play important roles to form a positive attitude of customers for products. Moreover, the consciousness of green living of consumers accounts for a high proportion in creating customer satisfaction for organic products. The results show useful information for current premises to determine the factors that influence the decision to repurchase organic cosmetic product, that provide business strategies.

Bilayer tablets with sustained-release metformin and immediate-release sitagliptin: preparation and in vitro/in vivo evaluation

Nguyen Ngoc Nha Thao,Pham Duy Toan,Nguyen Duc Tuan,Trinh Thi Thu Loan 한국약제학회 2021 Journal of Pharmaceutical Investigation Vol.51 No.5

Purpose Diabetes mellitus, especially type II, is one of the most common chronic diseases. Its first-line oral treatment is metformin, commonly in combination with another agent such as sitagliptin, a dipeptidyl peptidase-4 inhibitor. The commercial combination is Janumet XR 50/500 mg, in which the extended-release metformin core tablet is coated with an immediaterelease layer of sitagliptin. However, the coating process with solvents and a high temperature might affect the sitagliptin properties and product quality. Hence, the present study aimed to develop bilayer matrix tablets incorporating both drugs into two separate layers, a sustained-release metformin layer, and an immediate-release sitagliptin layer. Methods Wet granulation and direct compression methods were used for the metformin and sitagliptin layer, respectively. The optimal formulation was selected and characterized based on the design of experiments method. In vitro release and in vivo bioequivalence studies were also conducted to compare with the reference Janumet XR 50/500 mg. Results The optimized formulation immediately released sitagliptin (> 95%) within 30 min at pH 1.2 and sustained the release metformin for 10 h at pH 6.8. The in vivo behaviors of the bilayer tablets were bioequivalent to the commercial product, Janumet XR 50/500 mg. Conclusion The bilayer tablets could provide an alternative approach for combination therapy of type II diabetes.

An Approximation of the Synthesis Cross Section for the Unknown 126th Element via 58Ni + 251Cf and 64Zn + 248Cm Combinations

Duy Nguyen Ngoc,Ho Phuong-Thao,Pham Vinh N. T.,Hoan Nguyen Thi Thu 한국물리학회 2020 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.77 No.1

In this paper, we estimate the production cross section of the unknown super-heavy nuclei 309, 312126 via 58Ni + 251Cf and 64Zn + 248Cm combinations by using approximation methods. For each reaction, the competition between compound nucleus (CN) formation and quasi-fission process is also analyzed. We found that the synthesis cross section for the 309126 isotope is about 3 fb, which is about 5 orders of magnitude higher than that for the 312126 nucleus. The results also suggest that a valley exists around the isotope with A = 313 in the production yields for the 126th element. Moreover, the synthesis of the 310-317126 isotopes is still a challenge for experimental techniques due to the small cross sections, which are less than 1 fb.

A Numerical Calculation of the Nuclear Spin-Parity and Magnetic Moment Based on the Single-Particle Shell Model

Nguyen Ngoc Duy,Latsamy Xayavong,Nguyen Kim Uyen,Vinh Nguyen Thanh Pham,Tran Viet Nhan Hao 한국물리학회 2019 새물리 Vol.69 No.10

Nuclear physics is an obligatory subject for the general physics program of undergraduates in most of the natural science universities worldwide. In nuclear physics, the shell model is one of the most important models, and is well used to determine the spin-parity and the magnetic moment of a nucleus. Over ten years of teaching general physics, we have realize that most undergraduate students find calculating these parameters by using this shell model to be difficult due to the classification of the subshells and the intrinsic spin of nucleons. With the hope to help these students, in the present study, we introduce a graphical-user-interface (GUI) program to execute our selfdeveloped Shell Model Calculator (SMC) code written in the Visual Basic 6.0 (VB6) programming language. Our SMC validation results for the quantum quantities in a series of nuclei Z = 1 - 20 were compared with experimental data and found to be in good agreement. In general, we successfully developed an SMC program that can be used for teaching, learning, and researching nuclear physics in universities.

Preparation of Financial Statements of Enterprises According to IFRS: An Empirical Study from Vietnam*

Duy Thuc NGUYEN,Dinh Huong HOANG,Ngoc Tien NGUYEN 한국유통과학회 2022 The Journal of Asian Finance, Economics and Busine Vol.9 No.2

The purpose of this study was to find out what factors influence the preparation of financial statements in accordance with the International Financial Reporting Standards (IFRS) for Vietnamese businesses. The survey included 150 enterprises, including parent companies of state-owned economic groups, parent companies that are listed companies, large-scale public companies that are unlisted parent companies, and enterprises with 100 percent foreign direct investment, that will apply IFRS voluntarily from the year 2022 and switch to the mandatory application from the year 2025 (Ministry of Finance, 2016). The survey was carried out with the help of the Google Form tool, and the data was processed using EFA and regression analysis methods on the SPSS 22.0 software. The findings show, for enterprises in Vietnam, that six factors influence the preparation of financial statements in accordance with IFRS, ranked in order of influence from high to low: (i) Related party requirements; (ii) Professional qualifications of accountants; (iii) Roles of enterprise managers; (iv) Forms of capital ownership in enterprises, (v) Institutional regulations, and (vi) Operational characteristics of the enterprise. In addition, the study also shows that, for enterprises in Vietnam, the requirements of related parties are an important factor to promote the preparation of the financial statements of enterprises according to IFRS.

Investigation of Aluminum Metallized Source/Drain Thin Film Transistors Using a Self-Aligned Fabrication Process

Duy, Nguyen Van,Lee, Wonbaek,Jung, Sungwook,Nga, Nguyen Thanh,Son, Dang Ngoc,Kim, Kwangryul,Choi, Byoungdeog,Yi, Junsin IOP Publishing 2010 Japanese journal of applied physics Vol.49 No.r9