TRA VINH UNIVERSITY JOURNAL OF SCIENCE; p-ISSN: 2815-6072; e-ISSN: 2815-6099

PRELIMINARY ANALYSIS ON ENTERTAINING EDUCATIONAL CONTENT FOR LEARNERS WITH AUTISM SPECTRUM DISORDER

Xu miaomiao, Abdul Mutalib Ariffin, Irwan Hamzah Hammuzamer (Author) — Thu, 11 Apr 2024 09:19:10 +0700

This paper reports on an ongoing study regarding the needs of autism spectrum disorder learners for entertaining learning materials. Previous researchers have introduced a number of assistive technologies, but the use of assistive technologies is problematic for students with autism spectrum disorder. The lack of entertaining learning material for autism spectrum disorder students may be one of the reasons. Therefore, this study proposed student–entred learning and self–paced learning approaches to better help autism spectrum disorder students for learning. The methods of fieldwork and semistructured interviews were utilized to investigate the needs of autism spectrum disorder learners for entertaining learning materials. During the fieldwork, the favorite or main leisure activities at home of the participants were collected. Semi-structured interviews were conducted with teachers in special schools to investigate students’ needs for entertaining learning materials. The study results indicated that there are very few entertaining learning materials developed specifically for learners with autism spectrum disorder, but the need is urgent.

THE RITUAL OF WELCOMING TEVADA CHNAM THMAY: SIGNIFYING THE CIRCULATION OF GODS AND THE BEGINNING OF THE NEW YEAR TIME CYCLE OF THE KHMER PEOPLE IN SOC TRANG PROVINCE, VIETNAM

Chanh Da Son, Thuan Quang Mai (Author) — Tue, 19 Mar 2024 00:00:00 +0700

The ritual of welcoming Tevada Chhnam Thmay is a meaningful and indispensable event in the Khmer New Year. This ritual denotes the time of a year’s transition and welcomes the new Tevada. The research adopted the theory of symbolic anthropology proposed by Victor Turner to explain the meaning of ritual symbols and considers ritual symbols as a mechanism for maintaining traditional society. By employing the participant observation and sociological interview method conducted in Soc Trang Province, the study contributes to clarifying the appearance as well as the role and meaning of the Tevada Chhnam Thmay in the spiritual life of the Khmer people in Southern Vietnam.

FACTORS AFFECTING EFL STUDENTS’ ORAL TRANSLATION EXAM PERFORMANCE: A CASE IN SOUTHERN VIETNAM

Nhu Nguyen Yen Ta, Thao Hieu Nguyen (Author) — Tue, 19 Mar 2024 00:00:00 +0700

Despite the rapid development of technology and digital applications, interpreters play an indispensable role in assisting effective communication and connecting speakers from different cultures. To fulfil the global demand, more oral translation programs and courses are offered in higher education institutions. While there has been more attention to process-based teaching and learning, little has been done to examine what affects students’ performance during summative assessment. This present study explores (1) EFL students' perceptions of the factors influencing their oral translation exam performance, (2) strategies students use and expectations on lecturers to enhance interpreting competence. This study employed a mixed approach. Online questionnaire and interviews were used to collect data from 72 English majors at a university in the south of Vietnam. The results revealed that audio quality, testing-taking anxiety, memory, vocabulary shortage, and listening skills had a greater impact on students' oral translation exam performance than other factors. Students have various strategies and expectations of lecturers concerning a positive testing environment.

IMPLICATION OF NANOPORE SEQUENCING TECHNOLOGY FOR PATHOGENIC DIAGNOSTICS: A MINI-REVIEW

Tue, 19 Mar 2024 00:00:00 +0700

DNA sequencing is the most critical technique to explore and study genomic data of human beings and surrounding environments. The history of DNA sequencing has rapidly grown since the first-generation DNA sequencing in 1977. Until now, emerging high-throughput sequencing technology has recently revolutionized omics areas, including genomics, transcriptomics, metagenomics, and metabolomics for the development of modern molecular biology. Besides the short-read sequencing method (Illumina platforms), the long-read sequencing technologies (including Pacific Biosciences and Oxford Nanopore Technologies) have been developed with the advantages of larger read sizes, portable devices, and diverse preparation kits. Consequently, the number of biological databases and study-related nanopore sequencing technologies has grown fast. This review paper summarized the principle and fundament of nanopore sequencing regarding their advanced applications in pathogenic diagnostics of different hosts. The most recent application of nanopore sequencing in the diagnostics of infectious diseases is highlighted and discussed to provide insights into the novelty of nanopore sequencing technology and its future perspectives.

SYNTHESIS OF GOLD NANOPARTICLES FROM DIOSCOREA HAMILTONII TUBER EXTRACT AND INVESTIGATION TO CATALYZE THE DECOMPOSITION OF COLORED ORGANIC DYES

Thu Thi Anh Nguyen, Thao Thi My Nguyen (Author) — Tue, 19 Mar 2024 00:00:00 +0700

This research introduced the synthesis process of gold nanoparticles (DH-AuNPs) from Dioscorea hamiltonii tuber extract and HAuCl₄.3H₂O by green chemistry methods. DH-AuNPs were synthesized under optimal conditions with a reaction temperature of 90°C, using 3.0 mM HAuCl₄.3H₂O and a ratio of HAuCl₄.3H₂O to DH of 1:1 (v/ v) within 60 minutes. The morphology, structure, and content of DH-AuNPs were determined by SEM, DLS, EDX, FT-IR, UV-Vis, and TGA measurement methods. The research results indicated that DH-AuNPs had an average particle size of 201 nm and 70.68% of the formed nanoparticles in the product. The catalytic activity of DH-AuNPs was investigated by monitoring the decrease in absorbance during the degradation of various colored organic dyes, such as EY, MO, RhB, and Rh6G. In the presence of the DH-AuNPs catalyst, the reaction between NaBH₄ and the colored compounds proceeded rapidly, reaching completion within 14 minutes.

STUDY ON MODIFICATION OF RED PUMPKIN STARCH (Cucurbita moschata) TO CREATE RESISTANT STARCH USING ENZYME

Hoang Minh Vo, Huong Thi Yen Nguyen, Hien Thi Nguyen (Author) — Tue, 19 Mar 2024 00:00:00 +0700

This study aims to determine the parameters of the enzymatic hydrolysis process of red pumpkin starch to increase the resistant starch content in the material. The liquefaction stage was designed with two factors: α-amylase concentration and different times. The results of the α-amylase liquefaction process showed that the highest reducing sugar content was 14.92% at an α-amylase concentration of 11 U/g and time of 50 minutes, with a fixed starch:water ratio is 1:4. The saccharification experiment was carried out based on a multivariate model using the Central Composite Design method yields expected results, with variance analysis in the regression model showing significance (p < 0.05). The reliability of the model R² = 0.997 showed that the regression model was suitable for the dataset with 99.7% accuracy. CV = 2.08% indicated that the accuracy and reliability of the experiments were good. At a glucoamylase concentration of 112.424 U/ml, a temperature of 48.590°C, and a time of 179.732 minutes, the highest resistant starch content reaches 35.968%. Solubility and swelling increase with temperature: at 90°C, the solubility of native starch and modified starch are 12.12% and 68.85%, respectively, while swelling of native starch is 6.77% and modified starch achieves 3.39%. The transparency of native starch is 5.37% T, while modified starch achieves 2.17% T.