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All Journal AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Tematik: Jurnal Penelitian Pendidikan Dasar
Wijaya, Mike
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Education Energy Environmental Science

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Meningkatkan Kemampuan Berbicara Bahasa Inggris Siswa pada Materi Describing People dengan Menggunakan Media Spinning Wheels di Kelas VII SMPN 2 Kasui Wijaya, Mike
Tematik: Jurnal Penelitian Pendidikan Dasar Vol. 2 No. 2 (2023)
Publisher : Medan Resource Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57251/tem.v2i2.1263

Abstract

The study aimed at improving students' English speaking skills especially on the material of Describing People by using spinning wheel media. The sample of the study were the students of SMPN 2 Kasui grade 7B in the which consists of 8 male students and 11 female students. Can the use of spinning wheel media improve students' English-speaking skills in describing people material? This research used classroom action research which consists of two cycles. data were obtained through speaking assessment sheets, observation sheets and interview with the students. The result of the research showed the increase of students' English-speaking skills by 18.68 points at the end of cycle II. By looking at the observation sheet and the results of speaking assessments sheets in cycle II, it can be concluded that the use of spinning wheel media, besides able to increase student’s activity in the classroom, it can also improve students' English-speaking skills, especially in the material of Describing People.
Preparation of Celery Leaf Extract, Phytochemical Screening, and Nanoparticle Formulation in Antiaging Cream Development Wijaya, Mike; Kasim, Anwar; Kasim, Fitriani
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 9 No. 1 (2025)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v9i1.615

Abstract

This study examines the preparation of bioactive extracts from celery leaves (Apium graveolens L.) and their transformation into nanoparticulate forms for potential application in antiaging formulations. The celery leaves were extracted using the maceration method with 96% ethanol. The phytochemicals of celery extract were examined using a unique reagent, which shows the celery extract contains flavonoids, alkaloid, and triterpenoid. These compounds are usually used as active agents in antiaging creams. We employed the ultrasonication probe-homogenizer to produce nanosized particles of celery extracts. The particle size analyzer data showed that the particle size significantly reduced from 6,757.2 nm (bulk) into nanoparticle when probe homogenization was employed, with average sizes of 583.8 nm (30 minutes homogenization), 219.9 nm (60 minutes homogenization), and 161.7 nm (90 minutes homogenization). These values indicate that within time, the bulk active compound in celery could be used to formulate an antiaging cream for the next applicationContribution to Sustainable Development Goals (SDGs):SDG 3: Good Health and Well-being SDG 9: Industry, Innovation, and Infrastructure SDG 12: Responsible Consumption and Production
Co-Authors Anwar Kasim Fitriani Kasim