Determinants

The aim of this is study to analyze and compare the amount of microplastics in the surface water and water column samples at Han River estuary (Da Nang) in the rainy season 2023. Sixteen water samples (eight water column samples and eight surface water samples) were collected and analyzed to determine the quantity, shape, color, size, and polymer forms of microplastics.

9p vimitsuki 30-03-2025 0 0   Download

This article focuses on the aerodynamic and acoustic characteristics of both an isolated propeller model and a propeller - boundary surface model. The study uses the Reynoldsaveraged Navier-Stokes (RANS) method combined with Computational Fluid Dynamics techniques to analyze the flow field and wake flow behind the propeller and to determine its basic aerodynamic coefficients.

14p viyuhi 26-03-2025 4 1   Download

The auxiliary parts of the impact test hammer are only suitable for certain cases. The impact velocity of other cases are determined by measuring. Instead of measuring multiple times, the hammer velocity calculating method and program is suggested by this article for general cases and the input parameters will be changed for the other cases. The calculation results are verified by using a high speed camera to measure the hammer velocity.

9p viyuhi 26-03-2025 0 0   Download

Total factor productivity (TFP) has received much attention from both academics and policy makers in the past decade, as it promises an answer to the question of sustainable growth in the context of limited inputs. This article examines the TFP of manufacturing companies in Vietnam and the factors at the firm level, in addition to locational drivers, especially at the provincial level, that drive the change in TFP.

9p viyuhi 26-03-2025 5 1   Download

This study aims to determine the various strains of yeast and filamentous fungi in traditional alcohol yeast cake from Hai Hau district, Nam Dinh province. By traditional laboratory techniques such as isolation on YPD agar, observation of colony morphology as well as cell characteristics by microscopy, combined with molecular biology method to sequence ITS region 03 strains of yeast Saccharomyces cerevisiae CN1, CN2, and NM3 were identified: 01 pseudo-strain yeast Saccharomycopsis fibuligera NM02 and 01 strain of filamentous fungi Rhizopus microsporus NS04.

10p viaburame 14-03-2025 5 0   Download

The problem of developing a question-and-answering system is a challenging task in the field of Natural Language Processing. Natural language is inherently ambiguous, making it difficult to determine the semantic meaning of questions as well as identify the correct answers. In this research, we investigated a question-andanswering system based on the Rasa Framework.

8p viaburame 14-03-2025 2 1   Download

The study attempts to explore economic, financial, and institutional developmental factors that contribute to the growth of the size of corporate bond markets by using the data set from ten Asian economies (China; Hong Kong, Indonesia; Japan; Korea; Malaysia; the Philippines; Singapore; Thailand; and Vietnam). The empirical findings by generalized least squares model show that the level of economic development as shown by GDP per capita is one of the most important factors in the development of corporate bond markets.

9p tuongmotranh 18-03-2025 16 1   Download

The paper have answered the research questions: What is the relationship between governance and quality assurance (QA) in highe education institution (HEI)? What good practices are there to concretize the roles and functions of the University Council (UC) in the work of QA? We agreed that in pricipal, UC is responsible for university governance activities in line with the HEI's development strategy with 4 important areas of work: Determining vision, mission, cultural values; Building development strategies and policies including QA policies; Mobilizing resources inside and outside the insti...

10p tuongmotranh 18-03-2025 4 1   Download

In recent years, economic activities and the work of humans have increased dramatically, destroying vegetation cover, and causing the natural environment to change significantly, which promotes the occurrences, development, and increase of landslides. This research uses the statistical index to determine the weight of each class in each factor and an analytical hierarchical process (AHP) to determine the weight of factors.

17p viaburame 14-03-2025 2 1   Download

The novel magnetic method used to immobilize the primary antibody in 96-well polystyrene plates was investigated to determine the pregnancy-associated plasma protein-A (PAPP-A), one of the most important protein markers in pregnancy.

9p viaburame 14-03-2025 3 1   Download

Red phosphorus is an important ingredient in the manufacture of pyrotechnic smoke and is likely to be in service for many years. One of the most effective ways to use smoke screens is to protect special vehicles from laser and infrared guidance systems. In this work, the formulation, obscurant and emission characteristics of the smoke composition in smoke devices used in special vehicles were determined and evaluated.

11p vinatis 30-07-2024 5 2   Download

Hypertrophic cardiomyopathy (HCM) is a common genetic cardiovascular disease and a major cause of sudden death. It is also involved in increasing morbidity and mortality of various cardiovascular diseases. Genetic factors have been found to be important in determining the phenotypic manifestation of cardiac hypertrophy. However, only 50–60% of HCM patients have been identified as having pathogenic variants in known genes, suggesting that more studies are needed to find more disease genes.

15p xuanphongdacy06 18-09-2024 7 1   Download

In this article, the authors present a technique for determining bathymetry in shallow water regions by utilizing WorldView-2 stereoscopic images. The accuracy of stereoscopic depth measurement using WorldView-2 images is assessed by field depth measurement using the single-beam echo sounder. The study area is Nam Yet Island.

12p viyoko 01-10-2024 3 1   Download

In this study, one analytical procedure was established for simultaneous determination based on UV-Vis spectrometry coupled with several multivariate linear regress solved by Python – an open language programme to quantify three antibiotics, including TET, PGP, and CEX, in laboratoryprepared synthetic and pharmaceutical mixtures. This study also provided a universally analytical procedure for determining the three antibiotics in their pharmaceutical forms without the need for optimization for each analyte.

5p viyoko 01-10-2024 5 0   Download

The objective of this study was to determine the impact of the extraction conditions on the extraction yield of bioactive compounds from grape pomace using choline chloride and organic acid-based deep eutectic solvents (DES).

9p viling 11-10-2024 0 0   Download

In this report, the solid phase extraction technique combined with the gas chromatographymass spectrometry method (GC-MS) was optimized to determine the contamination of nine phthalic acid esters (PAEs) in the surface sediment samples collected from Rao Cai River in Ha Tinh, Vietnam.

7p vifilm 11-10-2024 1 1   Download

The current experiment aimed to determine the effects of peptidoglycan, known as a prebiotic compound, on the growth, feed efficiency, and disease resistance in Nile tilapia. Fish at an initial body weight of 22.6 ± 0.3g were distributed into a 100 L-glass tank system.

10p vibecca 01-10-2024 4 2   Download

This study was conducted to determine the composition of Toxocara species in dogs and cats in Vietnam. One hundred and twenty-seven Toxocara adult worms were collected from dogs and cats and were analyzed by PCR-RFLP assay and DNA sequencing of a partial section of the cox1 gene.

7p vibecca 01-10-2024 4 2   Download

Liquidity risk, which tends to compound other risks such as credit and market risks, has become one of the principal risks in banks. Thus, this study examined the determinants of liquidity risk measured by the loan deposit ratio (LDR).

9p vibecca 01-10-2024 3 2   Download

Jiaogulan (Gynostemma pentaphyllum (Thunb.) Makino) is distributed mostly in mountainous areas, in shaded and humid places at 300-3200 meters above sea level. This study was conducted to determine the appropriate application dose of nitrogen for the growth of Jiaogulan under different shading conditions.

11p vibecca 01-10-2024 2 1   Download