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All Journal Impulse: Journal of Research and Innovation in Physics Education Science: Indonesian Journal of Science
Aini, Latifa Marwaatul
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Agriculture, Biological Sciences & Forestry Chemistry Education Mathematics Physics Public Health Social Sciences Other

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Analisis Pengaruh Jenis Minyak Jelantah Terhadap Ketahanan Lilin Aromaterapi Wihdah Dwi Fathani; Khairiah, Rhea; Aini, Latifa Marwaatul
Science: Indonesian Journal of Science Vol. 2 No. 1 (2025)
Publisher : LPPI Yayasan Almahmudi bin Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/science.v2i1.289

Abstract

Limbah minyak jelantah yang tidak dimanfaatkan dengan baik dapat mencemari lingkungan. Salah satu cara pemanfaatannya yaitu dengan mengolahnya menjadi lilin aromaterapi. Penelitian ini bertujuan untuk menganalisis pengaruh jenis minyak jelantah terhadap ketahanan lilin aromaterapi. Metode yang digunakan dalam penelitian ini adalah eksperimen kuantitatif. Adapun jenis minyak jelantah yang digunakan, yaitu minyak kelapa bekas rumah tangga, minyak sawit bekas rumah tangga, minyak sawit bekas goreng ayam, dan minyak sawit bekas gorengan. Minyak tersebut dicampur dengan soy wax dan essensial oil, lalu dicetak menjadi lilin aromaterapi. Ketahanan lilin diuji berdasarkan sisa tinggi lilin setelah pembakaran selama 90 menit. Hasil menunjukkan bahwa lilin dari minyak kelapa bekas memiliki ketahanan terbaik (2,4 cm), sedangkan minyak sawit bekas goreng ayam menunjukkan ketahanan terendah (1,4 cm). Perbedaan ketahanan ini dipengaruhi oleh karakteristik kimia dan kondisi minyak. Penelitian lanjutan diperlukan untuk mengevaluasi pengaruh suhu pemanasan, metode pemurnian, dan penggunaan zat aditif terhadap kinerja lilin aromaterapi.
English for Physics Laboratory Work: Needs Analysis of Undergraduate Learners Azahra, Khadijah; Aini, Latifa Marwaatul; Wahyunengsih
Impulse: Journal of Research and Innovation in Physics Education Vol. 5 No. 2 (2025): Impulse: Journal of Research and Innovation in Physics Education
Publisher : Pendidikan Fisika FITK UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/impulse.2025.52-06

Abstract

The increasing use of English in laboratory manuals requires Physics Education students to possess adequate language skills in order to carry out practical activities effectively. However, many students still struggle to understand scientific terminology and interpret instructions written in English. Previous studies have also shown a gap between the linguistic demands of laboratory work and students’ actual language proficiency, making needs analysis essential to conduct. This study aims to identify the English language needs of Physics Education students and the linguistic challenges they encounter during laboratory practice. A descriptive survey method was employed through a mixed-method approach involving fifty students at UIN Syarif Hidayatullah Jakarta. Data were collected using an ESP-based questionnaire and semi-structured interviews, then analyzed through descriptive statistics and thematic analysis. The findings indicate that reading is the most needed skill (M = 4.1; 78%), followed by listening (M = 3.9; 75%), speaking (M = 3.8; 72%), and writing (M = 3.7; 70%). Limited mastery of scientific vocabulary emerged as the main obstacle in understanding texts and instructions. Practically, this study contributes by highlighting ESP needs that are specific to the physics laboratory context, which differ from those addressed in general ESP instruction. These findings emphasize the importance of ESP teaching that focuses on technical vocabulary development, comprehension of procedural texts, and listening practices relevant to real laboratory situations.
Co-Authors Azahra, Khadijah Khairiah, Rhea Wahyunengsih, Wahyunengsih Wihdah Dwi Fathani