In physics, the majority of natural events have been researched and described using differential equations, each having its own initial and boundary conditions. These differential equations contain a large number of fundamental constants as well as other model parameters. They add to the equation's complexity and rounding errors, making the problem more difficult to solve. In this work, we provide a method for transforming these physics differential equations into dimensionless equations, which are significantly simpler. Nondimensionalization, by suitably substituting variables, is the process of removing some or all of the physical dimensions from an equation that contains physical quantities. Some benefits of these dimensionless equations include that they are simpler to identify when using well-known mathematical methods, need less time to compute, and do not round off errors. Through several examples we discuss, this method is useful not just in quantum mechanics but also in classical physics.

This research examines the scholarly literature on technology-based language learning published in the Computer Assisted Language Learning journal-one of the key journals in the field from 1990 to 2019. The researcher randomly selected 30 articles from 257 articles found in this journal during a thirty-year period (one article each year) to analyze the research method trends and the learner types focused in those studies. Results showed that mixed-method research has been more popular in recent years, and this may help academics better understand the connections between classroom environments and technology-enhanced language acquisition. For quantitative analysis, tests and Liker-scale questionnaires are the most used instruments, whereas interviews are the most common approach for qualitative analysis in mixed-method publications. Additionally, when it came to learning levels, researchers focused their attention on college and university students, but they paid no attention to pre-schoolers.

In this paper, MIL-53(Al) was synthesized by solvothermal method and its application as an adsorbent to remove rhodamine B from aqueous solution. The material was characterized using X-ray diffraction, Fourier-transform infrared spectroscopy, nitrogen adsorption-desorption isotherms, and scanning electron microscopy. The results show that the material has a large specific surface area (1028.3 m2/g). The rhodamine B adsorption on MIL-53(Al) occurs very quickly in the first minutes of contact. Two pseudo-first order and pseudo-second order adsorption kinetic models, and two adsorption isotherm models, including Langmuir and Freundlich, were used to analyze the adsorption data.

Primates play a huge role in biomedical research. They are raised for medical research and to test new vaccines before being used for humans. The yellow-cheeked gibbon (Nomascus gabriellae) is an endemic mammal of Vietnam, included in the Vietnam Red Book 2007, and described in the IUCN Red Book 2009. This species is an endangered species found only in a small region of Indochina, and its populations have declined in most known sites. The purpose of this article is to present an overview research on taxonomy, identification, reproduction, behavior, ecology, distribution, population, and conservation status of this species. The overall results are intended to support the conservation of this rare endemic animal species and provide reference in related biomedical research.

Investigating the characteristics of the three-step sorption of Sc on armchair silicene nanoribbons is the aim of this study. Since absorbed energy is the largest of the bridge, hollow, valley, and top positions, the hollow position is selected first. The structural state of the second step has an energy of adsorption of 4.18 Å and a bond length of 2.36 Å for Si-Si. Finally, ASiNRs with a high Sc atom had their 1.25 Å surface modified. Adsorbed ASiNRs resulted in new materials with semi-metal and magnetic characteristics, suggesting potential use in spintronic and electronic devices in the future.

ABSTRACT The world’s financial market has recently suffered from many fluctuations due to currency changes and the crisis, especially after the bank collapsed in the United States, cryptocurrencies have become one of the leading choices made by many investors in the world. It is undoubted that the development of cryptocurrency is an inevitable trend in society's future. In that context, updating knowledge about the general development trend of the financial market as well as about the cryptocurrency system is indispensable for everyone, especially young people - the generation that holds the global economy's future. Therefore, it is urgent to present and educate the cryptocurrency framework to college students. If there is no action taken, economics instructors will run the risk their students are left back in this flourishing and endlessly changeable economy. To start the educational story about cryptocurrency, it is crucial to define the measurements of students' awareness about the medium ahead of teaching-related materials. The data of the study are collected from 355 survey samples conducted by students in Ho Chi Minh City. The survey consists of 15 questions using various scales, designed by the researchers and using MS Excel 2016 for quantitative analysis, including using percentages, frequencies. The results show that the students' awareness is still low despite the significance of knowing about cryptocurrency. But they are also gradually realizing the necessity of things and are willing to improve their own knowledge of this aspect. Keywords: education, cryptocurrencies, students’ perceptions

Industrial robots have become one of the effective support tools for human labor. Robots are a solution to replace humans in repetitive tasks and in environments where humans cannot work. Robots have become one of the factors responding to the Industrial Revolution 4.0. Automatic control devices require high-precision control quality. Therefore, in this paper, we focus on researching controlling the position of the actuator accurately based on the PID algorithm. First, we study the forward and inverse kinematics of a three-joint robot. Second, we design the robot model on inventor software and transfer the 3d model in inventor software to Matlab Simmechanics. Third, modeling robot model on Simulink to simulate and evaluate the results achieved

In engineering and science problems, the data being considered are often known in the form of sets of discrete points, not as a continuous function. In applications, the values of the discrete data at specific points may be required to estimate. To solve these problems, a common mathematical approach is to use the interpolation method. In this paper, we use the cubic natural spline interpolation method to build approximate functions for some real data in Vietnam such as data on rice output and rice area of cultivation, data on expenditure and income per capita. The data used in this paper are extracted from the General Statistics Office of Vietnam. We develop some Matlab programs to find the coefficients of splines and calculate the values of the interpolation functions at specific points. Using the obtained interpolation function, some missing values in the data on income and expenditure per capita in the Southeast region of Vietnam in 2019 and 2021 are estimated. Furthermore, some unknown data on rice productivity and cultivation area are obtained in a similar manner. A good agreement between the calculated values and actual values are found.

In the accelerating pace of globalization and internationalization of trade, professionals from a wide range of organizations believed that English as an international language, which is a way of thinking, researching and practicing, was used in almost all areas of life, study, and work. That’s why the study's foremost objectives were to comprehend reading learning strategies used by English-majored students at Thu Dau Mot University. A quantitative method was used to conduct the research with a questionnaire divided into four parts. The subjects of this study are 100 English majors from the Faculty of Foreign Languages at Thu Dau Mot University. According to the results, the majority of students agree with the difficulties faced when learning English reading. Likewise, students also subscribe that they also use some reading learning strategies such as extensive reading strategy, the phonics strategy, the whole language strategy, reading comprehension strategy and vocabulary building strategy. Moreover, some solutions, such as the function of the word in the sentence, the main gist, guessing the unfamiliar word and reading aloud are recommended to them to read more effectively and improve their reading ability. Ultimately, some recommendations are made in the hope of helping both teachers and students. Keywords: challenges, English reading, reading learning strategies, Thu Dau Mot University

This article's primary goals are to provide design drawings, a description of the structure, an explanation of the working principle, and a kinematics calculation for text stamping machines. This machine has an electric motor, a gear-pinion transmission, a rotating disc-rod-slider mechanism and a hinged four-way mechanism. This is a simple, reasonably priced and useful device for administrative agencies' workstations. An ordinary administrative worker can also operate it. This device is about the same size as a laptop or printer. It operates by clamping the seal, stamping constantly onto A4 pages. The stamping speed can also be changed by varying the shaft speed of the electric motor. It is convenient, but it also has the disadvantage of requiring someone to put the paper in and take it out. The box frame of this machine is made of plastic or wood. Some transmission components are made of steel. When this machine works, the force applied to it and the force caused by it are very small, so in general it is very simple and safe. Keywords: Gear transmission – rack, rotating disc mechanism – connecting rod – slider, four-hinged mechanism, stamping machine.

Nigeria and developing countries are suffering from infectious diseases due to a mixture of determinants. Parable, rotavirus is a major concern that causes a lot of deaths and hospitalization among children under five of age. Therefore, it is imperative to have more understanding of the rotavirus. A literature review to form concepts were made under the following headings: Historical background of the Rotaviruses, General Characteristics of Rotaviruses, Classification of Rotaviruses, Structure of Rotavirus particle, Rotavirus protein, Non- structural proteins, Structure of Rotavirus genome, Genetic reassortment of Rotaviruses, Mechanisms of Rotavirus genetic diversity, Rotavirus infection, Rotavirus replication, Transmission of Rotaviruses, Incubation period of Rotaviruses, Pathogenesis of Rotavirus infection, Signs and symptoms of Rotavirus infection, Immunity to Rotaviruses, Laboratory diagnosis of Rotaviruses, Epidemiology of Rotaviruses, Treatment of rotavirus infection, Antiviral therapy, Other Therapies, Management of Rotavirus infection, Prevention of Rotavirus infections, General Preventive Measures, Hospital Infection Control Measures. This information would invariably help in gaining understanding the basics of Rotavirus that causes diarrhea in children.

This work presents a benchmarking study between Lagamine, an in-house developed finite element (FE) code, and COMSOL Multiphysics® (Comsol) commercial software in thermal analyses to investigate their capability in modeling complex manufacturing processes. For this purpose, two case studies, including a NAFEMS benchmark for heat transfer with convection and a Directed Energy Deposition (DED) of a bulk sample, were used as test cases. The simulation models using Lagamine and Comsol solvers for each case were described. The underlying algorithms and theories, as well as the soft-ware development, are investigated. The computational results indicate slight differ-ences between Lagamine and Comsol solutions in both case studies. For the NAFEMS test case, the results obtained with Comsol solver appear to be less dependent on the mesh size than those obtained with Lagamine. For the DED test case, within the chosen configurations of Lagamine and Comsol codes, the maximum difference in the highest peak temperatures obtained from the two codes is about 20%. From an engineering point of view, it is suggested to determine parameters of the FE model consistently with the selected FE code to provide the best match with experimental observations.

The objective of this study was to determine iodine levels in soils, grains, and goitrogenic content of common grains across zones of Sokoto state, Nigeria using standard methods and reagents of analytical grade. Obtained data were subjected to descriptive and ANOVA statistics. The Western zone has highest iodine (29±0.01ppm), followed by Central zone (26±0.01ppm), and last was East Zone (24±0.01ppm). The factors that affect iodine bioavailability such as pH and organic matter were determined in different soils of Sokoto (Table 1). East zone had the most elevated pH (6.55±0.08), followed by Central Zone (6.17±0.06) and lastly (5.82±0.05). However, organic matter was most elevated in EZ (5.4±0.01%), CZ (4.5±0.05), and lastly WZ (3.4±0.02). Iodine level in Rice (25±0.014ppm) was significantly higher (P

Almajiri are students’ in an ancient Islamic system of teaching. This paper assesses food security, personal hygiene, living condition, and violence in Almajiri. Survey using questionnaire and analysed descriptive statistics, and x2 at p < 0.05 were used. Most schools were donated (66.7%), and minority (33.3%) were self-owned. Schools were built by zinc (33.3%), mud (33.3%), and modern (33.3%). There are urinals in all the schools (100.0%), overcrowding (100.0%), 66.7% have windows and doors, (33.3%) have no windows and doors. 66.% of the schools have mats for sitting, 33.3% have chairs. Risks found are: open defecation (33.3%), and nearby water (66.7%). Majority of students stay for 4 months before returning home (66.7%), and significant portion of them return after graduation (33.3%). Pertaining personal hygiene 66.7% of the students’ wear shoes, 33.3% didn’t wear; 66.7% have cleaned clothes, 33.3% dirty clothes, there was no water at (66.7%) of the schools, 33.3% have water. 66.7% wash hands after toilet, none wash hands before eating. On food security for Almajiri, 66.7% eat once, 33.3% eat twice. They eat Tuwo (33.3%) Gari, Tuwo (33.3%), and unspecified food (33.3%); source of food includes begging (33.3%), external labor (33.3%), and home (33.3%). Types of violence encountered are: weapon use (33.3%), fight (33.3%), and flogging (33.3%). Majority (66.7%) like western education, and (33.3%) replied no. All students are feeling their condition psychologically; some are at SS1 (33.3%), JSSI (33.3%), and (33.3%) never attend western school. Poor health determinants exist in Almajiri students in Sokoto.

Ficus hispida L.f. (FH) is among the widely cultivated tree species in Asian regions. The aim of this work was to determine phenolic and flavonoid contents, antioxidant, in vitro anti-inflammatory activities of FH extracts prepared with methanol (ME), ethanol (ET) and ethyl acetate (EA). The extract obtained from ethyl acetate contained the highest total phenolic and flavonoid contents (92.75 +/- 5.14 mg GAE/g and 5.67 +/- 0.65 mg QE/g), followed by ME and ET. The capacity to scavenge ABTS free radical of the extracts followed the order: EA > ME > ET while their DPPH activity differed insignificantly. The inhibitory effect of EA and ME (IC¬50 = 362.84 +/- 29.05 and 386.95 +/- 11.10 ug/mL, respectively) were higher than that of ET. Correlation analysis showed a high positive correlation between total phenolic content and ABTS activity. The findings of the study would be useful for development of new nature-derived agents for prevention and treatment of diseases.

This report presents the process of conserving, restoring scientific works, as well as ensuring the method and principle of conservation. Besides, because there are many reasons, the restoration of the relic is not currently carried out in accordance with the current regulations and there are some mistakes in the conservation and restoration of the relic. Therefore, understanding the restoration process is the core scientific basis for proposing effective conservation projects and solutions. Moreover, the content of report provides more the materials, and scientific foundations for conservation and restoration of the relic as follows: - Understand the valuable aspects of the Ngo Mon relic; - Help conservationists grasp some methods to identify the relic including analysing history, and construction schedule of the work; analysing actual state (architecture, materials, fine arts...); analysing documentary photos; analysing similar works. - Support people who work in management, project planning, construction of the relics grasp the order, process, regime, and policy of the State when implementing a project to conserve and restore more professionalism.

Glioma is a deadly tumor that accounts for the majority of malignancies of the brain and central nervous system. Currently, applying biomarkers and combining with clinical treatments in the diagnosis and prognosis of Glioma is the optimal trend. Among the effective biomarkers, microRNA has emerged as a novel, efficient biomarker. In this study, we used data from the Kyoto Encyclopedia of Genome and Gene Routes Database (KEGG) and bioinformatics tools for functional prediction and annotation of two Glioma-associated molecules (miR-6780a-5p and miR-6754-3p). The result indicated that 361 genes relating with two molecules miR-6780a-5p and miR-6754-3p. In which, miR-6780a-5p interacts with 198 genes and miR-6754-3p interacts with 166 genes. PPI analysis (protein-protein interaction analysis) and functional enrichment analysis revealed that target molecules of two miRNAs (miR-6780a-5p, miR-6754-3p) belong to cancer signaling pathways such as MAPK (Mitogen-activated protein kinase) and WNT (Wingless-related integration site). In addition, two miRNAs (miR-6780a-5p and miR-6754-3p) affect not only Glioma but also regulation in many other cancers such as pancreatic, thyroid, and endometrial cancer. Briefly, the result has clarified the role of (miR-6780a-5p, miR-6754-3p) in regulating signaling pathway of Glioma, thereby evaluating the interaction between miRNAs, target genes and target signaling pathways, and also supporting for the selection of potential biomarkers in Glioma diagnosis

Vietnamese immigrants in the United States encounter a variety of acculturation issues that affect them as individuals, families, and as members of their communities. It is evidenced in the literature that low-socio status immigrants suffered from those acculturation challenges. However, there is scant research on how acculturation affects high-socio status immigrants in general and Vietnamese American immigrants in particular. To better understand how high-educated Vietnamese families coped with acculturation in the United States, this research used semi-structured interviews to examine the acculturation issues they encountered and the techniques they utilized to overcome those issues. Four well-educated participants were interviewed one-on-one for 20-30 minutes each by Google Meet in Vietnamese whenever they were available. The interviews were transcribed using unfocused transcription, and the data was analyzed using grounded theory technique. Results showed that high-educated Vietnamese immigrants in the United States face three major acculturation challenges: orientation, the necessity of better economic and self-esteem needs. However, women seemed to be under more acculturative stress owing to their lower levels of English proficiency and work satisfaction, according to the findings. In terms of coping methods, the husbands use integration acculturation tactics to deal with their issues. Separation methods were adopted by the women at various periods in their life, despite the fact that they are eager to become fully integrated members of American culture. They are unable to do so due to a lack of urgency and lack of access to cultural integration.

This article is the results of the project "Assessment of health and safety risks for wood industry workers researched at Lap Giai company, Ben Cat district, Binh Duong province". Theory of change (ToC) is an intervention strategy to reduce worker health risk and safety that was initially established by the research team before being deployed at Lap Giai Company. Preparation ToC helps promote and cooperate in the co-production of knowledge between the academic and management group. The paper is a summary of 10 steps of the ToC method, in which, planning, analyzing change needs, projecting impacts, mapping intermediate results, determining project outputs, identifying assumptions, creating diagrams and explaining the ToC are important steps. The experiences drawn from the theory of change in transdisciplinary study are (1) Can be applied to digital transformation research and environmental management research in enterprises. (2) Role leadership is decisive in developing transdisciplinary topics in enterprises. (3) Both internal and external environments must be considered to design the most beneficial change interventions.

Oral history is both a method of gathering information and an important source of historical data in social history and public history. The narratives of individuals are not only exploited to find historical facts or “additional” details to a grand narrative but uncover the meaning of individuals’ stories for a broader social context. That shift has made oral history increasingly an interdisciplinary research method. However, compared with the popularity of oral history in international academic disciplines, the application of this research method restricts in Vietnam. This article presents the possibilities and prospects of oral history through different research topics/fields in history, at the same time, specify the causes of obstacles to the legitimization of oral history in Vietnam.

The Southeast region, in prehistory and protohistory, established the space of Dong Nai archeological culture. Since the 16th to 17th centuries, the Southeast had been discovered by the Vietnamese people, in which they established sovereignty and administrative structure. Over three centuries of formation and development, the Southeast region has created many changes in geographic names and administrative structures as required by the historical context of each period. This article presents the overview of the administrative restructuring process in the Southeast region in some important historical milestones during the development process hereof. With the presentation of administrative structures in the Southeast region, the article contributes to systemizing the historical periods of formation and development of the region. It also opens further dialogues for the study of historical and cultural characteristics of the Southeast region.

Research results show that compost was created at the rate of C / N: 25/1 by mixing ingredients 2.5 grams of cow manure, 3g of organic waste, 0.01g of coir based on calculation of content. C and N in each material; With the humidity of 60% based on the calculation of the moisture content from the compost materials combined with the amount of water to add is 670ml, from which a Compost fertilizer has been produced. Determination of the optimal values for the mixratio and function has been verified on experimental crops. Research also shows that the use of probiotics in composting will shorten the compost time, limit the odor escaping from the compost.

Since 2017, the United Nations has strengthened the economic sanctions on North Korea. Many countries have stopped trading with North Korea, causing the economic certain difficulties. China has become a trade and tourism partner that accounting for almost all of the country's foreign currency earning. That had gone on until the beginning of 2020 when North Korea locked its borders to avoid the Covid-19 epidemic. North Korea is essentially famous for having published a quite relatively little information about themselves and being nicknamed “The Hermit Kingdom” due theirs policies. Therefore, the article will analyze mirror data from countries, then compare it with the actual situation of North Korea to assess the reliability of the data. Moreover, providing information on transport routes that is major contributor to China-North Korea. Thereby, drawing comments on China-North Korea merchandise trade and tourism industry relationship in that stage and proving North Korean economic adaptation under International sanctions. The author also suggests polices to reach the North Korean development of self-reliance economics.

International scientific publication is one of the activities that help improve the quality of scientific research and develop the brand name of the university. This paper presents some key features of Thu Dau Mot university’s international scientific publications through statistics from 2015 to 202 which based on criteria: the number of publications in international journals (included ISI, Scopus and non-ISI, Scopus), field of science, gender and research collaboration. In addition, this paper will discuss some initial identifications: (1) the number of international scientific publications has grown rapidly and steadily over the years; (2) the number of international scientific publications is concentrated in the natural science, engineering and technology; (3) social science and education’s contribution in international scientific publications has limited;(4) there is a significant difference in the number of international scientific publications between male and female; (5) Research collaboration has an important role in the international scientific publications of Thu Dau Mot university.