The Global Factors Driving Common Inflation In ASEAN

Trinh,Pham T. T(Trinh,Pham T. T ),Nhan,Le P. A.(Nhan,Le P. A. ) People&Global Business Association 2023 Global Business and Finance Review Vol.28 No.4

Purpose: This study investigates the comovements of inflation across ASEAN countries and identifies the global factors driving the common inflation dynamics of the region. Design/methodology/approach: The study uses a two-step approach. The dynamic latent factor model is first employed to estimate the common inflation of the region in the period between 2000Q1 and 2022Q2. In the second step, a bound test approach to autoregressive distributed lag (ARDL) methodology is employed to estimate the model of common inflation, which is constructed based on the aggregate supply - aggregate demand (AS-AD) framework. Findings: The study finds a common factor of inflation across ASEAN countries. The analysis of variance decomposition indicates the significant role of common inflation in the variations of individual countries' inflation. World economic growth, oil price change, non-fuel commodity price change, and trade openness are the main drivers of ASEAN common inflation in both short and long terms. Research limitations/implications: The study focuses mainly on supply-side factors, although some demand-side factors are involved. Future studies should pay more concerns on the trade linkages among regional countries and the similarities in goals in the region. Originality/value: The study examines the common inflation component across ASEAN countries, which has not been sufficiently investigated. It also evaluates the drivers at the global level of common inflation, which has limited empirical evidence.

Income Distribution and Factors Affecting the Bank’s Stability

Viet Xuan TRINH(Viet Xuan TRINH ),Du Kim DO(Du Kim DO),Anh Thi Lan NGUYEN(Anh Thi Lan NGUYEN ) 한국유통과학회 2022 유통과학연구 Vol.20 No.9

Purpose: Research on banking sustainability plays an important role in helping banks understand the level of risk in different types of companies. Therefore, this study was conducted to determine the factors affecting the sustainability of Joint Stock Commercial Banks in Vietnam. Research design, data and methodology: The following theories, the factors affecting the bank's sustainability include: Business model diversification (income diversification), bank size, loan ratio, and net interest margin. Data was collected from Joint Stock Commercial banks in Vietnam from 2015 to 2019. With GLS model on panel data with banks listed on Vietnam stock exchange. Results: The analysis results show that net interest income has a positive impact on the sustainable business results of banks through the rate of return on total assets (ROA). The non-interest income hasn’t impact on bank stability. From this result, there aren’t positive signs of income diversification in banks. At the same time, with the obtained results, the study also provides a policy implication for banks. Conclusions: The study also provides some policy implications to improve the bank stability. Diversifying income in banks is necessary, but how to make it influential banks has not yet been done. Therefore, the adjustments in non-interest business activities need to be carefully considered by banks.

Fully integrated and slidable paper-embedded plastic microdevice for point-of-care testing of multiple foodborne pathogens

Trinh, Kieu The Loan,Trinh, Thi Ngoc Diep,Lee, Nae Yoon Elsevier 2019 Biosensors & bioelectronics Vol.135 No.-

<P><B>Abstract</B></P> <P>This study presents a slidable paper-embedded plastic microdevice fully integrated with DNA extraction, loop-mediated isothermal amplification (LAMP), and colorimetric detection functionalities. The developed microdevice consists of three layers that allow a sliding movement to mix the sample and reagents for DNA purification, amplification, and detection in a sequential manner. An FTA card was employed in the main chamber for DNA extraction and purification from intact bacterial cells. Subsequently, LAMP reagents and fuchsin-stored chambers were pulled toward the main chambers for DNA amplifications at 65 °C. After 30 min, the detection reagents-stored chambers were then moved to main chambers for result analysis. For the detection of LAMP amplicons, a novel colorimetric fuchsin-based method was employed. The wide applicability of the integrated microdevice was demonstrated by successfully screening three major foodborne pathogens, namely <I>Salmonella</I> spp., <I>Staphylococcus aureus</I>, and <I>Escherichia coli</I> O157:H7 in food, enabling highly sensitive detection of 3.0 × 10<SUP>1</SUP> CFU/sample of Gram-negative bacteria (<I>Salmonella</I> spp. and <I>Escherichia coli</I> O157:H7) and 3.0 × 10<SUP>2</SUP> CFU/sample of Gram-positive bacteria (<I>Staphylococcus aureus</I>) within 75 min. The portable and integrated microdevice presented in this study holds significant promise for point-of-care applications to accurately and rapidly diagnose and control diseases.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The integrated microdevice could identify major foodborne pathogens in 75 min. </LI> <LI> DNA extraction, amplification, and detection were performed in a seamless manner. </LI> <LI> The loading and moving of samples were controlled simply by sliding the microdevice. </LI> <LI> The results were analyzed directly on chip using fuchsin, a triphenylmethane dye. </LI> <LI> 3 × 10<SUP>1</SUP> CFU/sample of Gram-negative bacteria and 3 × 10<SUP>2</SUP> CFU/sample of Gram-positive bacteria were detected. </LI> </UL> </P>

On the properties of positive Boolean dependencies by groups in the database model of block form

Trinh Ngoc Truc,Trinh Dinh Thang,Tran Minh Tuyen 한국전산응용수학회 2022 Journal of applied mathematics & informatics Vol.40 No.3

The article proposed a new type of data relationship: Positive Boolean dependencies by groups on block and slice in the database model of block form, where instead of considering value pairs, we consider a group of p values ({p \geq 2}). From this new concept, the article stated and demonstrated the equivalence of the three types of deduction, namely: deduction by logic, deduction by block with groups, deduction by block has no more than p elements with groups. Operations on blocks or slices performed for index attributes on blocks, the properties related to this new concept as theorem the equivalen of the three types of deduction, closure of set positive Boolean dependencies by groups and representation and tight representation set of positive Boolean dependencies by groups when the block degenerated into relation are true in the relational database model and also stated and proven in this paper.

An Empirical Study of Commodity Market Patterns in Ethnic Minorities and Mountainous Areas: Evidence from Vietnam

Trinh Thi Thanh THUY,Nguyen Thi BINH,Trinh Thi Thu HUONG,Nguyen Thu THUY,Dang Thanh PHUONG,Tran Thi Bao KHANH,Nguyen Thi YEN 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.11

The development of the ethnic minorities and mountainous areas (EMMA) is currently receiving the attention of countries around the world. This is demonstrated through a large number of studies, in many respects, in many different countries. The objective of the study is to find out the current situation of the commodity market in the ethnic minorities and mountainous areas (EMMA) of Vietnam. In particular, the authors will study whether there is a link between the ability to access governmental policies and the characteristics of this commodity market. To achieve the goal, the authors employed the secondary data collection method to gather the relevant information on government policies for EMMA and conducted an interview of seventy (70) enterprises in the Northern midlands and mountainous regions and the Central Coast to clarify the characteristics of commodity market. By Levene’s test, the results showed that the accessibility to governmental policies has a certain influence on the development of the commodity market patterns in the EMMA in terms of diversification of distribution forms and sales method of the business. These findings brought some basic solutions to further enhance the role of the government in developing commodity markets in the EMMA of Vietnam.

Nonlinear stability of moderately thick functionally graded sandwich shells with double curvature in thermal environment

Trinh, Minh-Chien,Kim, Seung-Eock Elsevier 2019 Aerospace science and technology Vol.84 No.-

<P><B>Abstract</B></P> <P>Theoretical closed-form solutions and numerical results for nonlinear stability of the moderately thick functionally graded sandwich shells subjected to thermomechanical loadings are presented in this study. Two proposed material distribution models supported by elastic foundations are examined. The nonlinear strain field is deduced from the first-order shear deformation theory taking the stretching, bending and shear effects into consideration. The Bubnov–Galerkin procedure and harmonic balance principle are utilized to bring about the explicit algebraic expression for the shell static behaviors from governing equations derived from Hamilton's principle. Mechanical buckling loads and critical thermal rises for the shells in spherical, cylindrical, and hyperbolic paraboloid forms are obtained. The effect of geometry, elastic foundations, volume fraction index, material distribution models, buckling modes, and imperfections on the shell stability behaviors are considered in parametric studies. The yielding plateau in the thermal analysis of the spherical shells in case of temperature dependent characteristics is recognized for the first time. Verification studies are also conducted.</P>

Nonlinear thermomechanical behaviors of thin functionally graded sandwich shells with double curvature

Trinh, Minh-Chien,Kim, Seung-Eock Elsevier 2018 Composite structures Vol.195 No.-

<P><B>Abstract</B></P> <P>Analytical closed-form solutions for thermos-mechanical stability and explicit expressions for free- and forced- vibration of thin functionally graded sandwich shells with double curvature resting on elastic bases are investigated for the first time in this study. A core layer of ceramic and two cover layers of functionally graded materials constitute the shell structure. Governing equations are derived from the classical shell theory using Hamilton’s principle admitting Volmir assumption and von Karman nonlinear displacement fields. Theoretical solutions are achieved by using the Bubnov-Galerkin procedure in solving differential equations. Parametric studies showing the effects of temperature-dependent features, material constituents, initial geometry imperfections, external thermos-mechanical loadings, elastic bases, and geometry configuration on static and dynamic behaviors of the shells are performed. Thin functionally graded sandwich spherical, cylindrical, and hyperbolic paraboloid shells are studied. Snap-through phenomena under load-control conditions are recognized in thin functionally graded sandwich cylindrical shells. The fourth-order Runge-Kutta method is employed to numerically solve dynamic problems and four analogies are drawn to validate theoretical formulations.</P>

Inhibitory Effects of Red Ginseng on Passive Cutaneous Anaphylaxis and Scratching Behavior Reactions in Mice

Trinh, Hien-Trung,Bae, Eun-Ah,Han, Myung-Joo,Shin, Yong-Wook,Kim, Dong-Hyun The Korean Society of Ginseng 2007 Journal of Ginseng Research Vol.31 No.3

To evaluate the antiatopic effect of Korea Red Ginseng (RG, steamed root of Panax ginseng C.A. Meyer, Family Araliaceae), its inhibitory effect on passive cutaneous anaphylaxis reaction and itching in mice was measured. RG and its ingredient saponin fraction (SF) potently inhibited passive cutaneous anaphylaxis (PCA) reaction and scratching behaviors. RG at a dose of 100 mg/kg and SF at a dose of 50 mg/kg significantly inhibited the scratching frequency by 32% and 38%, respectively. RG and SF also inhibited the degranulation and protein expression of tumor necrosis factor $(TNF)-{\alpha}$ and interleukin (IL)-4 of RBL-2H3 cells induced by IgE-antign complex. However, polysaccharide fraction of RG did not inhibit it. Based on these findings, RG can improve allergic skin disorders atopic dermatitis and contact dermatitis by the regulation of $TNF-{\alpha}$, and IL-4 produced by mast cells and basophils and their membrane stabilization.

The Determinants of Accessibility of Financial Services in Vietnam

TRINH, Thi Thuy Hong,NGUYEN, Hoang Phong Korea Distribution Science Association 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.3

The study aims to assess the impact of factors on the access to financial services by Vietnamese farmers. The number of respondents in this study is 402 household heads participating in six diverse agricultural value chains in Vietnam. The explanatory variables of the Multinomial Logit model estimates variables at the individual characteristics while the Mixed Logit model can combine the two types of variables together to estimate the effects simultaneously. On the other hand, the Ordinal Logit model is used to evaluate the determinants of the increase in the quantity of financial services used by individuals. The estimation results show that male-headed households have more access to financial services than females. Younger farmers are more likely to use formal financial services than the elderly. Financial literacy, land ownership, and shocks in agricultural production all have a positive impact on the probability of dealing with banks. In addition, the degree of linkage and credibility of the value chain have a significant positive impact on the accessibility of financial services to farmers. The findings of this study suggest that limiting gender inequality, focusing on youth marketing and developing agricultural value chains will have a positive impact on farmers' access to financial services.

Production of phenolic compounds and biosugars from flower resources via several extraction processes

Trinh, Ly Thi Phi,Choi, Yong-Soo,Bae, Hyeun-Jong Elsevier 2018 Industrial crops and products Vol.125 No.-

<P><B>Abstract</B></P> <P>Edible flowers are abundant sources of bioactive compounds that provide substantial health benefits due to the antioxidant, anti-inflammatory, antimicrobial, anticancer, and neuroprotective agents that they contain. In the current study, the potential production of phenolic molecules by environmentally friendly extraction processes from camellia, rose, and roselle flowers was investigated. Rose showed the highest content of phenolic compounds (129.0–198.4 mg gallic acid equivalents (GAE)/g dry weigh (DW)), followed by camellia (56.7–107.6 mg GAE/g DW) and roselle (28.9–43.1 mg GAE/g DW). The antioxidant capacities of the extracts were correlated with their total phenolic contents, and were 898.4–1635.6 μmol Trolox equivalents (TE)/g for rose, 410.8–768.6 μmol TE/g DW for camellia, and 88.7–155.4 μmol TE/g for roselle. Significant improvements in the phenolic content were observed for the process using hydrolytic enzymes, which released 3940.9, 1623.3, and 81.4 mg/100 g of gallic acid from rose, camellia, and roselle flower, respectively. Rose and camellia flowers were found to be promising sources of natural gallic acid. Extraction with aqueous ethanol at 180 °C was the most effective method for achieving high total phenolic contents, antioxidant activities, and protocatechuic acid content. The highest levels of protocatechuic acid were 163.2 mg/100 g for roselle flowers and 84.7 mg/100 g for camellia flowers. The maximum sugar production was obtained by enzymatic hydrolysis, which yielded 596, 585, and 380 mg/g for rose, camellia, and roselle flowers, respectively. These results demonstrate that edible flowers can be exploited as potential sources of phenolic compounds and biosugars for functional foods and pharmaceutical applications.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Enzymatic treatment was highly effective to release gallic acid from the flowers. </LI> <LI> Rose and camellia flowers are abundant sources of natural gallic acid. </LI> <LI> Protocatechuic acid achieved the highest levels using aqueous ethanol at 180 °C. </LI> <LI> Enzyme-assisted process resulted in the maximum sugar yields (380–596 mg/g). </LI> <LI> Co-production of phenolic compounds and sugars in flowers is a potential strategy. </LI> </UL> </P>