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Study on effective mode area by Ge20Sb5Se75 suspended-core fiber filled with carbon disulfideThis paper presents a study on the effective mode area and effective refractive index of a suspended-core photonic crystal fiber based on a Ge20Sb5Se75 chalcogenide with CS2-filled air holes, with the... Author: Lanh Chu Van Keyword: Suspended-core photonic crystal fiber chalcogenide carbon disulfide effective mode area
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2
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Modeling and simulation of light focusing through an absorbing interface based on the Debye–
Török–Fedorov–Nakajima frameworkWe develop a unified Debye–Török–Fedorov–Nakajima (DTFN) model for tight focusing across an absorbing interface, extending the Debye–Wolf/Török integrals to complex refractive indices by enforcing the... Author: Do Trang Mai, Nguyen Quan The Keyword: High-NA focusing absorbing interface complex refractive index Debye–Wolf integral Fedorov–Nakajima branch condition vectorial point-spread function stratified media biomedical optics
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Developing a product rating prediction model based on customer text feedback using machine learning algorithmsThis study focuses on predicting product rating scores from customer text feedback. This task combines the challenges of natural language processing (NLP) with the class imbalance phenomenon commonly... Author: Ha Dien Thi Hong Keyword: Product rating prediction customer text feedback natural language processing (NLP) machine learning models model performance evaluation
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Developing a competency framework for learners - an effective solution for contemporary political theory training at the intermediate levelThe article argues that, amid innovation, international integration, and digital transformation, enhancing the quality of grassroots officials requires Intermediate Political Theory training to... Author: Long Tran Ba, Thanh Thanh Duong Thi Keyword: Competency framework political theory training competency-based approach.
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5
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Application of artificial intelligence in personalized feedback for secondary school students
in HanoiThis study examines the potential of artificial intelligence (AI) in delivering personalized feedback to lower secondary students in Hanoi. Using a mixed-methods approach that combines surveys and... Author: Son Tran Ngoc, Trang Le Thi Huyen Keyword: artificial intelligence learning feedback secondary school student; personalized
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Factors affecting the effectiveness of students’ competence in using tools and instruments for learning mathematics in general education: an exploratory factor analysis (EFA)This study aims to identify the factors that influence students’ competence in using tools and means for learning mathematics in secondary schools. Survey data were collected from 252 mathematics... Author: Hang Nguyen My, Mai Trần Thị Tuyết Keyword: Tool usage skills exploratory factor analysis mathematics teachers
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A corpus-based study of discourse-level errors in IELTS essaysThis study explored the extent to which discourse-level errors affected band scores in IELTS Writing Task 2 essays written by Vietnamese English learners. The primary objective was to identify how... Author: Mai Hiền Thị Keyword: IELTS Writing Task discourse-level errors coherence cohesion academic writing band score analysis
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Building a framework of criteria for assessing accountability implemen-tation results of public universities. University autonomy is the most important feature of modern education and is associated with accountability. By implementing the autonomy mechanism associated with accountability, universities will... Author: Pham Le Cuong, Pham Minh Hung Keyword: University autonomy accountability public universities criteria evaluate
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An investigation into lexical con-tents in English standardized testsThis paper aims to critically analyze lexical contents in national English standardized tests in an EFL context. Using the Compleat Lexical Tutor corpus tool, the lexical profiles of these exams are... Author: Dinh Thi Mai Anh, Tran Tien Ba Keyword: Vocabulary lexical profile word types test examination
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The effects of extensive reading on EFL university students’ reading comprehension and reading rateExtensive reading has been recognized as an alternative method to develop reading fluency. However, within the context of English language teaching in Vietnam, there has not been much research that... Author: Ngoc Yen Tran Thi, Hung Nguyen Viet Keyword: extensive reading reading comprehension reading rate EFL reading fluency
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