ISOLATION AND SELECTION OF AFLATOXINS PRODUCING ASPERGILLUS FLAVUS FROM PEANUT

Aspergillus flavus is known as the main producer of carcinogenic aflatoxins. The presence of this fungus and aflatoxins is an important impactson food safety, human and animal health. Peanut is one of the most important crops in Vietnam and  is suitable to substrate for aflatoxins producing fungus growth. The isolation and identification of Aspergillus flavus species from peanut is an initial step for further study in Aflatoxins contamination control in peanut. 28 peanut samples selected in Luc Nam district - Bac Giang province were used for fungus isolation. The isolated fungus were purified, conducted DNA extract, amplified PCR products then performed sequencing ITS gene and used BLAST software to check alignment to identification the strains. As the result, 4 strains alignedwith Aspergillus flavus strains from National Center for Biology Information - United Nation such as: TUHT115, KP214054.1, MTCC 8654, ZJ4-A. Those strains were checked and confirmed the aflatoxins production in peanut samples

途上国における適切な下水道料金体系に関する研究ーベトナム・ホーチミン市を対象として

東洋大学201

EFL students as creative writers

This article aims to share the author’s mini-action research in using some creative writing activities with Vietnamese high school students to examine how creative these EFL students could be in their writing of English and how useful creative writing can be to them. Three teaching activities were tried out as warmers with two groups of students in three different English sessions within two weeks. The outcome showed that these high school students were able to write creatively and their products could contribute to consolidating the benefits of creative activities in enhancing students’ mental and emotional development as advocated in various EFL contexts (Avramenko et al., 2018; Maloney, 2019; Manara, 2015; Pawliczak, 2015; Rippey, 2014; Şenel, 2018)

Student Self-assessment in Regard to the Learning Outcome Achievement Level When Using the CDIO Approach at University of Information Technology - Vietnam National University, Ho Chi Minh City

In 2010, Vietnam National University Ho Chi Minh City implemented the application of the CDIO (Conceiving - Designing - Implementing - Operating) approach, which has improved the quality of training in science and engineering majors. Nearly all of the curricula of Vietnam National University Ho Chi Minh City’s member schools are built completely or partially based on CDIO principles. The CDIO approach is well-suited to the practical context of Vietnamese technology training, which is adapted to the Vietnam National Qualification Framework and domestic as well as international quality accreditation criteria. CDIO-based programs focus on learners' competency upon the completion of a program. A quantitative study was conducted to analyze student self-assessment concerning achievements in their learning outcomes, and to determine the correlation between their performance and how well they fulfilled learning outcomes requirements. The data was collected from a random sample of 502 students at University of Information Technology - Vietnam National University Ho Chi Minh City. The results indicated that student self-assessments of learning outcomes are similar to their assigned grades, which means there was a positive correlation in the evaluation. In addition, results acquired from the Analysis of variance (ANOVA) revealed that there is a significant variation in the assessments of learning outcomes between majors from different faculties (5 items out of 17 items.) The findings are meaningful to lecturers, students and managers in improving learning, teaching and evaluation activities, which in turn help students improve their performance and prepare them for their future careers