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farida, fitri
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Bringing interactive elements into classes: Augmented reality-based learning media development for electrical measurement subjects in vocational education Putri, Murtita Mardiah; Effendi, Noverta; Farida, Fitri; Kassymova, Gulzhaina Kuralbayevna
Journal of Computer-based Instructional Media Vol. 2 No. 2 (2024): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jcim.v2i2.135

Abstract

This study aims to develop and evaluate Augmented Reality (AR)-based learning media to improve student interest at SMKN 1 Kuantan Mudik. AR, which integrates virtual objects into the real world, is expected to enrich the learning experience through innovative visual and interactive elements. This research employs a Research and Development (R&D) which includes preliminary research, prototype creation, student response assessment, and systematic reflection. The AR-based learning media prototype was developed using Assemblr Edu software and evaluated by media experts, content specialists, and students. The validation results indicate that the media is highly viable, receiving a score of 92.7% from content experts and media specialists. Student trials produced ratings of 88.9% for effectiveness and 90.3% for engagement. The findings demonstrate that AR-based learning media significantly enhance student interest and involvement in the learning process. This study concludes that augmented reality learning media substantially improve educational experiences in vocational settings, showing potential for broader implementation across various subjects. However, this research is limited to expert validation processes and primarily focuses on student responses rather than measuring learning outcomes. This study is anticipated to provide a foundation for developing more comprehensive and effective learning media.
Uji Aktivitas Penangkapan Radikal Bebas Ekstrak Etanol Daun Mangkokan (Nothopanax scutellarium (Burm.f) Merr.) Menggunakan Metode DPPH (1,1-Difenil-2-Pikrilhidrazil) dengan Variasi Suhu Pengeringan farida, fitri; guntarti, any
Farmasains : Jurnal Ilmiah Ilmu Kefarmasian Vol. 4 No. 2 (2017)
Publisher : Universitas Muhammadiyah Prof. DR. HAMKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/farmasains.v4i2.3362

Abstract

Mangkokan leaves contains flavonoids that are known as natural antioxidant source. The aim of this study is to find the effect of drying temperature variations towards free radical scavenging activity of mangkokan leaves. Mangkokan leaves macerated with 96% ethanol and dried at 40oC, 50oC, and 60oC. Then were macerated with ethanol 96%. Antioxidant activity tested by DPPH method and quercetin was used as positive control. Dry shrinkage with temperatures at 40oC, 50oC, and 60oC were: (9.25 ± 0.276)%; (8.76 ± 0.348)% and (7.97 ± 0.372)%, respectively. Water content at 40oC, 50oC and 60oC were: (5.13 ± 0.575)%; (4.53 ± 0.512)% and (4.04 ± 0.575)%, respectively. The antioxidant potency of 96% ethanolic mangkokan leaves by ES50 value at drying temperatures 40oC, 50oC, 60oC and quercetin were (1.75 ± 0.058); (2.39 ± 0,089); (5.38 ± 0,078) mg/ml and (9.16x10-4 ± 4.36x10-5) mg/ml. Ethanolic extract of mangkokan leaves which dried at 40oC has biggest radical DPPH scavenging activity but much weaker than quercetin.
Co-Authors Anshari, Khairul Any Guntarti Effendi, Noferta Effendi, Noverta Effendi, Noverta Hadir Purwanto Hamdani, Fauzan Hayati, Zuqriva Herlandy, Pratama Benny Ida Ayu Putu Sri Widnyani Kassymova, Gulzhaina Kuralbayevna Maltia, Laura Adza MUHAMMAD TAUFIK Neng Sholihat Nurhaliza, Sindi Putri, Murtita Mardiah Raihan, Muhammad Ramadhani, Witri Sunaryo Sunaryo Syurya, Rahmah Tika Wirdati Irma