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All Journal International Journal of Evaluation and Research in Education (IJERE) Journal of Education and Learning (EduLearn) IJOG : Indonesian Journal on Geoscience
Nguyen Thi Phuong Thao
Faculty of Environment, Ho Chi Minh City University of Technology (HCMUT)
Humanities Earth & Planetary Sciences Education Library & Information Science Social Sciences Other

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Petrographic Characteristics and Depositional Environment Evolution of Middle Miocene Sediments in the Thien Ung - Mang Cau Structure of Nam Con Son Basin Ngoc, Pham Bao; Nghi, Tran; Tin, Nguyen Trong; Tri, Tran Van; Tuyen, Nguyen Thi; Dung, Tran Thi; Thao, Nguyen Thi Phuong
Indonesian Journal on Geoscience Vol 4, No 3 (2017)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.4.3.143-157

Abstract

DOI: 10.17014/ijog.4.3.143-157This paper introduces the petrographic characteristics and depositional environment of Middle Miocene rocks of the Thien Ung - Mang Cau structure in the central area of Nam Con Son Basin based on the results of analyzing thin sections and structural characteristics of core samples. Middle Miocene sedimentary rocks in the studied area can be divided into three groups: (1) Group of terrigenous rocks comprising greywacke sandstone, arkosic sandstone, lithic-quartz sandstone, greywacke-lithic sandstone, oligomictic siltstone, and bitumenous claystone; (2) Group of carbonate rocks comprising dolomitic limestone and bituminous limestone; (3) Mixed group comprising calcareous sandstone, calcarinate sandstone, arenaceous limestone, calcareous claystone, calcareous silty claystone, dolomitic limestone containing silt, and bitumen. The depositional environment is expressed through petrographic characteristics and structure of the sedimentary rocks in core samples. The greywacke and arkosic sandstones are of medium grain size, poor sorting and roundness, and siliceous cement characterizing the alluvial and estuarine fan environment expressed by massive structure of core samples. The mixed calcareous limestone, arenaceous dolomitic limestone, and calcareous and bituminous clayey siltstone in the core samples are of turbulent flow structure characterizing shallow bay environment with the action of bottom currents. The dolomitic limestones are of relatively homogeneous, of microgranular and fine-granular texture, precipitated in a weakly reducing, semi-closed, and relatively calm bay environment.
Digital language teacher professional development in online community of practice: Indonesia-Vietnam perspective Nggawu, La Ode; Jamiludin, Jamiludin; Darnawati, Darnawati; Uke, Waode Ade Sarasmita; Anas, Ismail; Thao, Nguyen Thi Phuong; Thư, Võ Thị Anh
Journal of Education and Learning (EduLearn) Vol 20, No 1: February 2026
Publisher : Intelektual Pustaka Media Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/edulearn.v20i1.22939

Abstract

This study investigates digital language teacher professional development (TPD) within online communities in Indonesia and Vietnam, employing Pinar’s currere framework to identify optimal practices. Through qualitative methods, including interviews and observations, this study examined the experiences of English language educators navigating digital education in these countries. The findings indicate that, while both nations emphasize the significance of digital literacy, educators encounter challenges in acquiring essential digital competencies due to limited resources and infrastructure. Online communities of practice (CoPs) function as valuable platforms for knowledge dissemination, peer support, and professional growth, enabling teachers to enhance their digital proficiency. However, issues such as internet accessibility, time constraints, and language barriers persist as obstacles. This investigation underscores the necessity for tailored TPD programs that address these specific challenges, ultimately fostering effective integration of technology into language instruction.
Optimization of SAMR model scaffolding for the development of descriptive writing skills Nggawu, La Ode; Nurindah, Nurindah; Muhammad, Anugrah Puspita Ayu; Uke, Waode Ade Sarasmita; Atma, Nurul; Madil, Wahyudin; Thao, Nguyen Thi Phuong; Apita-Chavez, Minerva
International Journal of Evaluation and Research in Education (IJERE) Vol 15, No 2: April 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v15i2.38142

Abstract

This research presents an investigation of how the application of the digital substitution, augmentation, modification, redefinition (SAMR)-based scaffolding might be used to support first-semester basic writing students in overcoming challenges related to grammar proficiency and descriptive writing. A mixed-methods sequential explanatory design was used with 40 students enrolled in English language courses. Quantitative data were obtained through a 14-item Likert-type questionnaire measuring SAMR integration and challenges faced, while qualitative analysis was conducted on semi-structured interview data using NVivo to code thematically. The scores for all implementation indicators indicate that high average values were obtained (global M=3.37), indicating that SAMR-based activities and scaffolding were viewed as useful and engaging for supporting descriptive writing. The level of challenges was perceived as low to moderate (mean=2.59 overall). The key issues were that lecturers needed to offer more consistent support, access to devices was restricted, and students had uneven digital skills. Thematic results identified growth in grammatical consciousness, development of short texts, and creativity as projects that resulted in multimodal outcomes and student involvement. The research also underscores the importance of strong institutional structures and continued support for teaching. It concludes that employing SAMR-informed digital scaffolding is a strategy with the potential to support writing instruction through technology.
Co-Authors Anas, Ismail Anugrah Puspita Ayu Muhammad Apita-Chavez, Minerva Darnawati, Darnawati Dung, Tran Thi Jamiludin, Jamiludin La Ode Nggawu Madil, Wahyudin Nghi, Tran Ngoc, Pham Bao NURINDAH NURINDAH Nurul Atma Thư, Võ Thị Anh Tin, Nguyen Trong Tri, Tran Van Tuyen, Nguyen Thi Waode Ade Sarasmita Uke