Bunga Ayu Lestari, Bunga Ayu
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DAMPAK PENGEMBANGAN SHALE OIL AMERIKA SERIKAT TERHADAP OPEC (ORGANIZATION of EXPORTING COUNTRIES) Lestari, Bunga Ayu; Harto, Syafri
Jurnal Online Mahasiswa (JOM) Bidang Ilmu Sosial dan Ilmu Politik Vol 2, No 2: WISUDA OKTOBER 2015
Publisher : Fakultas Ilmu Sosial dan Ilmu Politik Universitas Riau

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Abstract

This research discusses about the implication of shale oil development to OPEC revenues. United States is one of the biggest energy consumption states. As a superpower state that becomes the second biggest country in energy consumption, United States has to keep its energy security resilence. Therefore, United States begins to develop alternative energy, such as shale oil resources. Shale oil development reach the successes which has been consumed for a half of total energy consumption in the United States lately. United States has a lot of shale oil resources in the country that do not only decrease the oil prices but also become a substitution of energy in US. The substitution does implication to OPEC revenues. This research using a level analysis of state, the used perspective is structuralism perspective to understand the implication of shale oil development. This research is based on library research which takes data from book, relevant, journal, newspaper and internet. In this research, the writer uses qualitative research method. OPEC is the biggest oil exporting.Keyword: Energy, Shale Oil, Impact, Energy Subtitution, Oil, Opec, Ex
AR-Based Flashcards to Improve Primary School Students’ English Vocabulary Mastery: Insights from Vocabulary Learning Research Rachmawati, Arandha May; Lestari, Bunga Ayu
Journal of Language and Literature Studies Vol. 5 No. 4 (2025): December
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/rxsmg853

Abstract

This study aims to develop and test the effectiveness of Augmented Reality (AR) flashcards to improve English vocabulary mastery for 25 students in the fifth-grade primary school. The research method used is Research and Development (R&D) with the ADDIE development model that includes the stages of Analysis, Design, Development, Implementation, and Evaluation. Data collection was carried out through questionnaires, and vocabulary tests before and after treatment. The results of the study indicate that AR flashcards are very effective in supporting vocabulary learning. Validation by material experts showed a feasibility level of 93%, indicating that the content in this media is accurate, relevant, organized coherently, and appropriate to the level of cognitive development of students. Media experts also assessed AR flashcards as valid in terms of visual appearance and functionality. Teachers gave very positive responses, especially in aspects of media use and management in the classroom. Students showed high engagement, enjoyment, and increased learning motivation during learning with this media, although some experienced difficulties in understanding the language used. The test results showed a significant increase in vocabulary mastery, from 40% in the pre-cycle to 92% in the third cycle. These findings demonstrate that AR flashcards are effective and technologically innovative. The implications of this study suggest that AR flashcards can be an alternative contextual and student-centered learning medium in accordance with the Independent Curriculum. However, limitations include the limited number of subjects and the need for simplified language. Further research is recommended for broader coverage and long-term evaluation.