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.

Effects of plant hormones on the characteristics and the genetic stability of calli induced from the ex vitro tissues of Celosia argentea var cristata

Nhat-Anh Tran-Nguyen(Nhat-Anh Tran-Nguyen ),My Y Huynh(My Y Huynh ),Hong Hanh Doan(Hong Hanh Doan ),Phuong Ngo Diem Quach(Phuong Ngo Diem Quach ),Thanh-Hao Nguyen(Thanh-Hao Nguyen ),Vi An Ly(Vi An Ly (사)한국식물생명공학회 2024 JOURNAL OF PLANT BIOTECHNOLOGY Vol.51 No.1

Evaluation of Auditors' Professional Skills in Local Auditing Firms in Hanoi

NGUYEN, Thi Hanh Duyen,LE, Van Luyen,HAU, Nguyen Van,DO, Duc Tai,THAO, Nguyen Thi Thu Korea Distribution Science Association 2020 The Journal of Asian Finance, Economics and Busine Vol.7 No.9

In recent years, the quality of auditing human resources in domestic auditing firms in Hanoi has certain limitations in which professional skills of auditors have not been given adequate attention. The number of customers at local auditing firms is forecast to increase gradually. Therefore, the quantity and quality of auditors need to be improved to meet requirements of the workload. Data for this research were collected through surveying 120 customers of domestic auditing firms in Hanoi on the 5-point Likert scale. Based on the collected data, we employ both qualitative and quantitative methodology along with some tools such as descriptive statistics, Cronbach's Alpha, T-test and ANOVA to analysis, evaluate and measure the professional skills of auditors in local auditing firms in Hanoi. The results show that the professional skills of auditors in auditing firms include 17 attributes. The majority of respondents show appreciation for the professionalism and professional competence of auditors, while, they think that critical thinking skills and creative thinking skills are still limited and need to be improved. These findings, not only help auditors to improve themselves, but also provide solutions for managers of domestic auditing firms in Hanoi to enhance quality of audited human resources.

Large Magnetocaloric Effect above 300 K and Magnetoresistance in (La0.5Pr0.5)1-xPbxMnO3 Perovskites

Nguyen Chau,Duong Thi Hanh,Bui Cong Tinh,Nguyen Hoang Luong,Nguyen Duc Tho,Nguyen Hoang Hai 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.52 No.5

Perovskite compounds (La0.5Pr0.5)₁- xPbxMnO₃ (x = 0.1 - 0.5) with orthorhombic structure were prepared by using a solid-state reaction technique. In the studied samples, the spin-glass-like state occurs at low temperatures and the Curie temperature, Tc, increases from 170 K (x = 0.1) to 336 K (x = 0.5) because of a strong double exchange. The magnetic entropy change, │△Sm│, reached its largest value of 2.06 J/kg·K at △H = 13.5 kOe for the sample with x = 0.4 (Tc = 323 K). Due to the large │△Sm│ and high Tc, these materials are suggested for use as active magnetic refrigerants for magnetic refrigeration technology at temperatures above room temperature. While the conductivity of the samples with x = 0.1 and 0.2 exhibits only a semiconducting behavior over the whole measured temperature range, there is insulator-metallic phase transition on the R(T) curves of the samples with x = 0.3 - 0.5. The magnetoresistance of the samples was measured and large values for MR were found. Perovskite compounds (La0.5Pr0.5)₁- xPbxMnO₃ (x = 0.1 - 0.5) with orthorhombic structure were prepared by using a solid-state reaction technique. In the studied samples, the spin-glass-like state occurs at low temperatures and the Curie temperature, Tc, increases from 170 K (x = 0.1) to 336 K (x = 0.5) because of a strong double exchange. The magnetic entropy change, │△Sm│, reached its largest value of 2.06 J/kg·K at △H = 13.5 kOe for the sample with x = 0.4 (Tc = 323 K). Due to the large │△Sm│ and high Tc, these materials are suggested for use as active magnetic refrigerants for magnetic refrigeration technology at temperatures above room temperature. While the conductivity of the samples with x = 0.1 and 0.2 exhibits only a semiconducting behavior over the whole measured temperature range, there is insulator-metallic phase transition on the R(T) curves of the samples with x = 0.3 - 0.5. The magnetoresistance of the samples was measured and large values for MR were found.

Development of label-free electrochemical lactose biosensor based on graphene/poly(1,5-diaminonaphthalene) film

Binh Hai Nguyen,Binh Thanh Nguyen,Hanh Van Vu,Chuc Van Nguyen,Dzung Tuan Nguyen,Loc Thai Nguyen,Thu Thi Vu,Lam Dai Tran 한국물리학회 2016 Current Applied Physics Vol.16 No.2

In this work, a lactose biosensor was developed by co-immobilizing b-galactosidase (b-Gal) and glucose oxidase (GOx) on microelectrodes pre-modified with Pt/graphene/P(1,5-DAN) for estimation of lactose in dairy products to prevent lactose intolerance. The Pt microelectrode was modified with graphene and 1,5-polydiaminonaphthalene film. Graphene was synthesized by chemical vapor deposition on copper tape and manually transferred to the electrode surface. Polymeric P(1,5-DAN) was grafted on top of the graphene film by electropolymerization. Modified surface of the electrode was characterized by Raman spectra analysis, FE-SEM, AFM and cyclic voltammetry. The results indicated that deposition graphene film on electrode surface induced considerable enhancement in current signal, over 20 times as high as the uncoated electrode surface. The developed sensor was successfully used to determine lactose in model samples with sensitivity, correlation coefficient (R2) and limit of detection (LOD) estimated to be 1.33 mA/(mgml1), 0.995 and 1.3 mg/ml, respectively. The combined graphene and conductive P(1,5-DAN) could serve as a novel sensing platform on electrochemical sensors with superior sensitivity.

Biosynthesis of Methoxymalonyl-acyl Carrier Protein (ACP) as an Extender Unit for Bafilomycin Polyketide in Streptomyces griseus DSM 2608

Nguyen Phan Kieu Hanh,황재윤,남두현 한국생물공학회 2018 Biotechnology and Bioprocess Engineering Vol.23 No.6

Bafilomycins belong to the 16-membered macrolactone family plecomacrolide antibiotics. In the bafilomycin biosynthetic gene cluster of Streptomyces griseus DSM 2608, five polyketide synthase (PKS) genes coding 12 PKS modules responsible for bafilomycin polyketide backbone were found. Based on the chemical structure of bafilomycin polyketide having two methoxy side chains, it was assumed that PKS module 6 and module 12 can utilize the methoxymalonyl-acyl carrier protein (ACP) as an extender unit to incorporate methoxy group. At the downstream of PKS genes, five putative genes responsible for the generation of methoxymalonyl-ACP from 1,3-bis-phosphoglycerate were located. In order to confirm the biochemical role of those genes, five putative genes (bafAI, bafAII, bafAIII, bafAIV, and bafAV) were amplified, cloned into the pET-32a(+) plasmid, and expressed in Escherichia coli Rosetta(DE3). The produced soluble recombinant proteins were purified through nickel-affinity column chromatography, and the biochemical reactions of recombinant proteins were investigated. Firstly the purified BafAII protein, a putative apo-ACP, was converted to active form by attaching 4’-phosphopantetheinyl group of coenzyme A (CoA) by the action of Bacillus subtilis Sfp protein. The linking of glyceryl group on functional BafAII, a holo-ACP, from 1,3-bis-phosphoglycerate (1,3-BPG) was confirmed by the reaction of the recombinant BafAIV protein, a putative glyceryl-ACP synthase. The next oxidation step of glyceryl-BafAII to 2-hydroxy-3-oxopropanoyl- BafAII was identified, which was catalyzed by the recombinant BafAI, a putative glyceryl-ACP dehydrogenase, in the presence of NAD+. Further oxidation of 2-hydroxy- 3-oxopropanoyl-BafAII to 2-hydroxymalonyl-BafAII was also verified by the recombinant BafAIII, a putative 3- oxoacyl-ACP dehydrogenase, in the presence of FAD. The final methylation of 2-hydroxymalonyl-BafAII by the recombinant BafAV, a putative 2-hydroxymalonyl-ACP O-methyltransferase, was proven to be mediated using S-adenosylmethionine as a methyl donor. Throughout checking the biochemical characteristics of five putative genes, the biosynthetic pathway of methoxymalonyl-ACP as an extender unit for bafilomycin polyketide synthesis was clearly evidenced.

Determinants of Information Technology Audit Quality: Evidence from Vietnam

NGUYEN, Anh Huu,HA, Hanh Hong,NGUYEN, Soa La Korea Distribution Science Association 2020 The Journal of Asian Finance, Economics and Busine Vol.7 No.4

The paper aims to investigate auditors, auditing firms and other external factors that affect quality of information technology audit in Vietnam. We conducted 2 types of data collections including direct and on survey. For direct survey, we sent directly to auditors at the training classes organized by State Securities Exchanges Commission. An online survey was established and Google doc link was provided to the Big4 and non-Big4 auditors. We received 138 survey responses in that 90 auditors came from Big4 and 48 auditors from non-Big4 firms. The data are analyzed using a factor analysis and compare means approaches to illustrate the potential IT audit quality factors and identify differences between two groups of auditors. The results show that independence and accounting knowledge and audit skills are the most important factors. And since external auditors perform many assurance services, the independence is critical. The result also shows that the auditors need to have enough competent and professional skills when conducting an audit, especially within an IT environment that requires high quality. The findings suggest a similar pattern of two groups in the context of Vietnam and some factors of auditors and auditing firms appear to have a statistically significant impact on quality of IT audit.

한국과 베트남 커피소비문화 비교 연구 – 근대 커피소비문화를 중심으로

Nguyen Thi Hanh Dung 한국베트남학회 2023 한국베트남학회 학술대회 Vol.2023 No.10

베트남과 한국은 19세기부터 각각 프랑스와 일본 제국의 지배 하에서 커피가 유 입된 역사를 기록한다. 이 시기에 사회역사적 배경의 영향으로 양국 국민들의 커피 소비문화에는 공통점과 차이점이 있어 양국의 커피소비습관과 커피 취향에 영향을 미쳤다. 그 동안 한국과 베트남 커피소비문화 기존 연구들은 근대 커피의 변천사나 공간을 살펴본 관점에서 많이 진행되었으나 근대 커피소비문화를 바탕으로 양국 간 의 커피소비문화 비교 연구는 많이 거론되지 않았다. 이에 따라 본 연구는 한국과 베트남의 커피문화를 형성하는 초기인 근대시기(19세기말부터 20세기 중반까지)에 양국 근대 커피소비문화의 특징을 접근하여 공통점 및 차이점을 분석한다. 양국 근 대 커피소비문화에 커피는 신문물로서 그 당시 상류계층, 엘리트계층, 식민자를 암 시하고 서민계층, 피식민자와 차별화하는 상징적 ‘구별짓기’ 물질로 적용되었다. 또 한 양국에서 카페공간을 통해 예술가들과 지식인들이 서로 교류하고 예술적인 활동 을 펼칠 수 있었다. 한편, 한국과 베트남의 커피 유입은 식민지 경험에서 시작되었 으나 한국은 커피 상품을 소비하고 수입하는 형식으로 유입되고 커피소비문화가 전 파되었다면 베트남은 커피 재배지역, 수출겸 소비 형식으로 유입되고 소비문화가 발전되었다는 것이다. 그리고 커피를 통해 여성에 대한 비판적이고 유교적인 한국 의 시선을 발견한 것이 베트남 근대 커피소비문화에 비해 신선한 관점이다. 그 외 에 한국에 비해서 베트남 근대 커피소비문화에는 커피에 대한 문화 변용이 더 활발 하게 진행되었고 뚜렷하다는 부분이 있다. 한-베 수교 관계가 31주년을 맞이하여 양국 간의 다양한 문화 교류 및 문화 변용 현상들을 기록하고 있는 배경에서 본 연 구는 양국의 관련 미래 문화 교류 활동에서 좀더 상호적인 시각과 인식을 기여할 수 있기를 희망한다.

Inhibitory Effects of Epigallocatechin Gallate and Its Glucoside on the Human Intestinal Maltase Inhibition

Nguyen, Thi Thanh Hanh,Jung, Sun-Hwa,Lee, Sun,Ryu, Hwa-Ja,Kang, Hee-Kyoung,Moon, Young-Hwan,Kim, Young-Min,Kimura, Atsuo,Kim, Doman 한국생물공학회 2012 Biotechnology and Bioprocess Engineering Vol.17 No.5

Human intestinal maltase (HMA) is an ${\alpha}$-glucosidase responsible for the hydrolysis of ${\alpha}$-1,4-linkages from the non-reducing end of malto-oligosaccharides. HMA has become an important target in the treatment of type-2 diabetes. In this study, epigallocatechin gallate (EGCG) and EGCG glucoside (EGCG-G1) were identified as inhibitors of HMA by an in vitro assay with $IC_{50}$ of $20{\pm}1.0$ and $31.5{\pm}1.0{\mu}M$, respectively. A Lineweaver-Burk plot confirmed that EGCG and EGCG-G1 were competitive inhibitors of maltose substrate against HMA and inhibition kinetic constants ($K_i$) calculated from a Dixon plot were $5.93{\pm}0.26$ and $7.88{\pm}0.57{\mu}M$, respectively. Both EGCG and EGCG-G1 bound to the active site of HMA with numerous hydrophobic and hydrogen bond interactions.

Korean Brand Globalization : How it works for the Vietnamese market

Nguyen-Hanh Tang,Aaron Rae Stephens,Young-Chan Lee(이영찬) 한국아시아학회 2019 아시아연구 Vol.22 No.4

본 연구는 베트남 소비자들에게 있어 한국의 국가 브랜드 세계화와 베트남에서의 한국 제품의 강점을 이론적인 틀을 통해 설명하고자 한다. 특히, 통합적 관점에서 이론적 틀을 개발하기 위해 믿음/인식, 평가/태도, 행동 의도의 3단계를 통합한 개념적 모델을 제안한다. 본 연구는 최근 한-베트남 경제 협력, 무역, 정치 역사에 대한 심층적인 조사와 문헌연구를 통해 원산지 인식에 대한 종합 척도 (민족주의, 적대감, 세계주의)를 개발하고 소비자 태도에 대한 효과 (국가 이미지, 제품 평가, 구매의도)를 실증적으로 조사한다. 연구목적을 달성하기 위해 베트남 소비자에 대한 설문조사를 수행하고, PLS-SEM방법으로 실증분석을 수행하였다. 조사 결과에 따르면 베트남 소비자들은 한국 제품에 대해 복잡한 관점을 갖고 있는 것으로 나타났다. 세개의 독립 변수 (민족주의, 적개심, 세계주의) 중에서 세계주의는 국가 이미지, 제품 평가, 그리고 구매 의도에 가장 큰 정(+)의 영향을 미치는 것으로 나타났다. 그리고 제품 평가는 국가 이미지와 구매 의도 관계에 대한 완전한 매개 효과를 가지며, 세계주의와 구매 의도의 관계에 대한 부분적인 매개 효과를 갖는 것으로 조사되었다. 본 연구는 한국과 베트남의 역사, 상호 협력, 한류에 대한 광범위하고 종합적인 검토와 소비자 태도 및 의사결정 과정을 통해 베트남 소비자들이 한국 국가 브랜드와 한국 제품을 어떻게 생각하고 있는지 실증적으로 분석을 시도하였다는 점에서 의의를 갖는다. This study seeks to elucidate the globalization of Korea’s nation branding to Vietnamese consumers and the power of Korean products in Vietnam through a theoretical lens. Particularly, it proposes a conceptual model that incorporates three stages of belief/perception, evaluation/attitude, and behavioral intention to develops a holistic framework. By examining a deeper insight of the recent Korea-Vietnam economic cooperation, trade, and political history, this research uniquely develop through a literature review a holistic measure of the country of origin perceptions (ethnocentrism, animosity, and world-mindedness – a new adopted independent variable) and a delineated view of those effects on consumer attitude (country image and product judgment). To serve the purpose, we conducted an empirical research by surveying on Vietnamese consumer and by using PLS-SEM (partial least square-structural equation model). The results of this research indicate that Vietnamese consumers have a complex set of concerns regarding Korean products. Of the three independent variables (i.e., consumer ethnocentrism, animosity, and world-mindedness), world-mindedness is the most salient with three positive pathways, i.e., in the relationships with general country image, product judgment, and purchase intention. Moreover, the critical role of product judgment is also found through its full mediation effect on the relationship between general country image and purchase intention, and its partial mediation effect on the relationship between world-mindedness and purchase intention. Many academic and practical implications, as well as managerial practices for Korean businesses in Vietnam, are suggested in this paper. The implications can also be extended into other Asian markets. Despite a large number of studies focusing on the impacts of K-wave on young Vietnamese, this study and its findings are valuable for understanding how Vietnamese consumers consider the Korean nation brand and Korean products in consideration of a comprehensive review of historical events, bilateral cooperation and K-wave with relevance to Vietnamese consumer attitudes and decision-making.