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Nguyen Ngoc Duy Phuong,Mai Ngoc Khuong,Thai Hoang Quoc,Le Nguyen Thanh Dong 한국유통과학회 2017 KODISA ICBE (International Conference on Business Vol.2017 No.-
The purpose of this study was to examine the direct and indirect effect of ethical leadership, organizational justice, organizational support on employee satisfaction and employee engagement. Very little research has been conducted to study those relationships in the socialization context. This paper attempts to fill the gap by analyzing data from a survey of 677 employees from industrial parks. This study used a survey instrument that consists of 2 sections. To ensure content validity, the survey items were derived from those used in previous studies. Each item was measured using a 5-point Likert scale. Ethical leadership scale with ten items were adopted from Toor and Ofori (2009). Partial least square structural equation modeling (PLS-SEM) is employed for testing the structural models and exploratory study is also identified to evaluate the relationship among variables. The findings provided evidence that employee satisfaction is the most important to predict employee engagement. The results also reveal the important effect of ethical leadership, organizational justice and supporting environment on job satisfaction. Implications for public policy practice and further research are also suggested based on the results of structural analysis.
Tobacco Control Policies in Vietnam: Review on MPOWER Implementation Progress and Challenges
Hoang, Van Minh,Tran, Thu Ngan,Vu, Quynh Mai,Nguyen, Thi Tuyet My,Le, Hong Chung,Vu, Duy Kien,Tran, Tuan Anh,Nguyen, Bao Ngoc,Vu, Van Giap,Nguyen, Manh Cuong,Pham, Duc Manh,Kim, Bao Giang Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.no.sup1
In Vietnam, the WHO Framework Convention on Tobacco Control (WHO FCTC) took effect in March 2005 while MPOWER has been implemented since 2008. This paper describes the progress and challenges of implementation of the MPOWER package in Vietnam. We can report that, in term of monitoring, Vietnam is very active in the Global Tobacco Surveillance System, completing two rounds of the Global Adult Tobacco Survey (GATS) and three rounds of the Global Youth Tobacco Survey (GYTS). To protect people from tobacco smoke, Vietnam has issued and enforced a law requiring comprehensive smoking bans at workplaces and public places since 2013. Tobacco advertising and promotion are also prohibited with the exception of points of sale displays of tobacco products. Violations come in the form of promotion girls, corporate social responsibility activities from tobacco manufacturers and packages displayed by retail vendors. Vietnam is one of the 77 countries that require pictorial health warnings to be printed on cigarette packages to warn about the danger of tobacco and the warnings have been implemented effectively. Cigarette tax is 70% of factory price which is equal to less than 45% of retail price and much lower than the recommendation of WHO. However, Vietnam is one of the very few countries that require manufacturers and importers to make "compulsory contributions" at 1-2% of the factory price of cigarettes sold in Vietnam for the establishment of a Tobacco Control Fund (TCF). The TCF is being operated well. In 2015, 67 units of 63 provinces/cities, 22 ministries and political-social organizations and 6 hospitals received funding from TCF to implement a wide range of tobacco control activities. Cessation services have been starting with a a toll-free quit-line but need to be further strengthened. In conclusion, Vietnam has constantly put efforts into the tobacco control field with high commitment from the government, scientists and activists. Though several remarkable achievements have been gained, many challenges remain. To overcome those challenges, implementation strategies that take into account the contextual factors and social determinants of tobacco use in Vietnam are needed.
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.
Nguyen Phuong Tung,Nguyen Thi Phuong Phong,Nguyen Hoang Duy,Nguyen Quoc Hung 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.52 No.5
This research was conducted to experimentally screen the suitability of acrylamido-2- methylpropane sulfonic acid-acrylamide (AMPS-AM) copolymer-based nanogels for using as sealants to shut-off water channels in the high-temperature and high-salinity reservoir conditions of the White Tiger oil feld. Via in situ intercalative free-radical copolymerization, nanogels have been prepared from montmorillonite-alkyl ammonium clay, AMPS and AM. Two primary compositions of nanogel systems were chosen. A mixture of hexamethylenetetramine (HMTA)/phenyl acetate (PhAc) was used as a crosslinking system. The results obtained from screening the gel properties by using the bottle test method, the test under nitrogen pressure and core ooding under imitated reservoir conditions show that the NANOSEAL-1 and the NANOSEAL-2 nanogels can well satisfy the VietsovPetro (VSP) technical requirements for water isolation materials. This research was conducted to experimentally screen the suitability of acrylamido-2- methylpropane sulfonic acid-acrylamide (AMPS-AM) copolymer-based nanogels for using as sealants to shut-off water channels in the high-temperature and high-salinity reservoir conditions of the White Tiger oil feld. Via in situ intercalative free-radical copolymerization, nanogels have been prepared from montmorillonite-alkyl ammonium clay, AMPS and AM. Two primary compositions of nanogel systems were chosen. A mixture of hexamethylenetetramine (HMTA)/phenyl acetate (PhAc) was used as a crosslinking system. The results obtained from screening the gel properties by using the bottle test method, the test under nitrogen pressure and core ooding under imitated reservoir conditions show that the NANOSEAL-1 and the NANOSEAL-2 nanogels can well satisfy the VietsovPetro (VSP) technical requirements for water isolation materials.
Nguyen, Hoang-Duy,Kim, Seung-Joo,Yeo, In-Hyeong,Mho, Sun-il The Electrochemical Society 2012 Journal of the Electrochemical Society Vol.159 No.3
<P>Novel orange-red phosphors based on Eu<SUP>3+</SUP>-activated Ba<SUB>2</SUB>Bi<SUB>2/3</SUB>TeO<SUB>6</SUB> and BaBiNaTeO<SUB>6</SUB> double perovskite were synthesized both by using a solid state reaction method and by using a Na<SUB>2</SUB>S<SUB>x</SUB> (x = 2–6) flux. Both Ba<SUB>2</SUB>Bi<SUB>2/3</SUB>TeO<SUB>6</SUB> (A<SUB>2</SUB>BB′O<SUB>6</SUB>) and BaBiNaTeO<SUB>6</SUB> (AA′BB′O<SUB>6</SUB>) have a cubic structure with rock-salt ordering of the B-site cations, with space group Fm3m and lattice parameters of 8.4719 Å and 8.3221 Å respectively. The structures of the two double perovskites differ from each other in the local coordination of Bi<SUP>3+</SUP> that is substituted by the Eu<SUP>3+</SUP> activators. The use of Na<SUB>2</SUB>S<SUB>x</SUB> flux for the preparation of Ba<SUB>2</SUB>Bi<SUB>2/3</SUB>TeO<SUB>6</SUB>:Eu<SUP>3+</SUP> and BaBiNaTeO<SUB>6</SUB>:Eu<SUP>3+</SUP> results in the incorporation of the Na<SUP>+</SUP> ion into and the extraction of the Ba<SUP>2+</SUP> ion from the lattice, and this, in turn, leads to a decrease in the lattice parameters. The luminescence intensity significantly increases with the lattice distortion/disorder caused by the Ba<SUP>2+</SUP> ion vacancy and the incorporation of Na<SUP>+</SUP> in the lattice. The relative intensity of red (615 nm; <SUP>5</SUP>D<SUB>o</SUB>–<SUP>7</SUP>F<SUB>2</SUB>) to yellow (592 nm; <SUP>5</SUP>D<SUB>o</SUB>–<SUP>7</SUP>F<SUB>1</SUB>) in the luminescence spectra of Ba<SUB>2</SUB>Bi<SUB>2/3</SUB>TeO<SUB>6</SUB>:Eu<SUP>3+</SUP> increases as a result of the disappearance of the centrosymmetric nature of the Eu<SUP>3+</SUP> crystallographic site.</P>
Effects of Foreign Direct Investment and Human Capital on Labour Productivity: Evidence from Vietnam
Nguyen Hoang LE,Luong Vinh Quoc DUY,Bui Hoang NGOC 한국유통과학회 2019 The Journal of Asian Finance, Economics and Busine Vol.6 No.3
The paper aims to investigate whether foreign direct investment (FDI) has positive effect on the labour productivity in Vietnam. Labour productivity is the elemental determinant of a country’s development level in long-term. In recent years, although increasing consistently, labour productivity of Vietnam remains low in comparison to other South East Asian countries. To identify the direction of effect and the level of effect of FDI and human capital on the labour productivity of Vietnam, Autoregressive Distributed Lag (ARDL) model was used to examine the effect of FDI and human capital on labour productivity in Vietnam from 1986 to 2014. The results of bounds test confirm the existence of cointegration among the variables. Further, the Toda and Yamamoto Granger causality test affirms that there is unidirectional causality running from foreign direct investment and human capital index to labour productivity. The empirical results provide strong statistical evidence that foreign direct investment and human capital has a positive impact on labour productivity in Vietnam in long-term. These findings imply that workers are expected to further improve their knowledge, skills and that policy-maker should establish concrete plans to increase human capital. Results from this study provide suggestion necessary for Vietnam to achieve sustainable development.
Duy Le Nguyen,Hieu Le-Trung Hoang,Vu Ngoc-Anh Ho,Toan Duong Pham,Nam Thanh Nguyen,Van Thi-Thu Tran,Tuong Manh Ho,Lan Ngoc Vuong The Korean Society for Reproductive Medicine 2024 Clinical and Experimental Reproductive Medicine Vol.51 No.1
Objective: The purpose of this study was to identify factors associated with twin pregnancy following day 3 double embryo transfer (DET). Methods: This retrospective cohort study incorporated data from 16,972 day 3 DET cycles. The participants were women aged between 18 and 45 years who underwent in vitro fertilization with intracytoplasmic sperm injection (IVF/ICSI) at My Duc Assisted Reproduction Technique Unit (IVFMD), My Duc Hospital, located in Ho Chi Minh City, Vietnam. Results: Of the 16,972 day 3 DET cycles investigated, 8,812 (51.9%) resulted in pregnancy. Of these, 6,108 cycles led to clinical pregnancy, with 1,543 (25.3% of clinical pregnancies) being twin pregnancies. Factors associated with twin pregnancy included age under 35 years (odds ratio [OR], 1.5; 95% confidence interval [CI], 1.32 to 1.71; p<0.001) and cycles involving the transfer of at least one grade I embryo. Relative to the transfer of two grade III embryos, the risk of twin pregnancy was significantly elevated following the transfer of two grade I embryos (OR, 1.40; 95% CI, 1.16 to 1.69; p<0.001) or a combination of one grade I and one grade II embryo (OR, 1.27; 95% CI, 1.05 to 1.55; p=0.001). Conclusion: By analyzing a large number of IVF/ICSI cycles, we identified several predictors of twin pregnancy. These findings can assist medical professionals in tailoring treatment strategies for couples with infertility.