Article Per Year (5 Year)
p-Index From 2020 - 2025
1.468
P-Index
This Author published in this journals
All Journal TEKNIK Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Pembelajaran Pemberdayaan Masyarakat (JP2M) Ekopem: Jurnal Ekonomi Pembangunan Indonesian Journal of Education Methods Development TRILOGI: Jurnal Ilmu Teknologi, Kesehatan, dan Humaniora Journal of Informatics and Computer Science (JINACS) JURNAL ILMIAH PENELITIAN MAHASISWA Pengabdian Cendekia
Amalia, Rahma
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Medicine & Pharmacology Physics Public Health Social Sciences Other

Published : 9 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 9 Documents
Search

 1 
Reactivation of the Spent Residue Fluid Catalytic Cracking (RFCC) Catalyst through Acid Treatment for Palm Oil Cracking to Biofuels Amalia, Rahma; Riyanto, Teguh; Istadi, Istadi
TEKNIK Vol. 42, No. 2 (2021): August 2021
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v42i2.39642

Abstract

This work discusses the treated spent Residue Fluid Catalytic Cracking (RFCC) catalysts using sulfuric or citric acids to examine the impact of acid treatment on the catalyst physicochemical properties and structural characteristics. The catalysts were characterized by X-ray diffraction (XRD), X-ray fluorescence (XRF), and Brunauer−Emmett−Teller-Barrett−Joyner−Halenda (BET-BJH) methods. The catalytsts were performed in a continuous fixed-bed reactor for catalytic cracking of palm oil. Changes of the catalyst characteristics and catalytic performance testing of the catalyst after the acid treatment for palm oil cracking process were discussed. It was found that the acid treatment on the spent RFCC catalyst can increase the surface area and pore volume of catalysts as well as the crystallinity. The closed pores in the spent RFCC are opened by acid treatment by eliminating heavy metals. Concerning to the catalytic performance, the acid-treated catalysts had better performance than the non-treated catalyst, which could increase selectivity of the kerosene-diesel range fraction from 47.89% to 55.41%. It was interested, since the non-treated catalyst could not produce gasoline fraction, while the acid-treated catalsysts could produce gasoline fraction at selectivity range of 0.57 – 0.84%. It was suggested that both sulfuric or citric acids treatment could increase the cracking performance of spent RFCC catalyst by shifting the product to lower hydrocarbons.
Klasifikasi Kepuasan Guru SMA di Kabupaten Banyuwangi Terhadap Aplikasi Merdeka Mengajar Menggunakan Algoritma Naive Bayes Amalia, Rahma; Qoiriah, Anita
Journal of Informatics and Computer Science (JINACS) Vol. 6 No. 01 (2024)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jinacs.v6n01.p250-257

Abstract

Penelitian ini bertujuan mengidentifikasi indikator yang memengaruhi kepuasan guru SMA di Kabupaten Banyuwangi sebagai pengguna aplikasi Merdeka Mengajar, serta melakukan klasifikasi dan evaluasi menggunakan algoritma Naïve Bayes. Subjek penelitian adalah guru SMA di SMAN 1 Pesanggaran, SMAN 1 Bangorejo, dan SMAN 1 Glenmore. Data dikumpulkan melalui kuesioner berbasis model kepuasan pengguna DeLone dan McLean. Metode penelitian adalah survei kuantitatif. Data yang digunakan adalah hasil penilaian guru SMA terhadap aplikasi Merdeka Mengajar. Teknik pengumpulan data yang digunakan yaitu kuesioner yang disebarkan pada responden. Instrumen penelitian yang digunakan pada penelitian ini mengacu pada model DeLone anf McLean yang terdiri dari variabel System Quality, Information Quality, dan Service Quality. Analisis data pada penelitian ini menggunakan algoritma Naïve Bayes. Hasil penelitian didapatkan nilai akurasi tertinggi sebesar 91.58% pada pengujian ketiga (60:40), presisi tertinggi sebesar 86.77% pada pengujian ketiga, dan recall tertinggi pada pengujian keempat (65:35). Saran untuk penelitian selanjutnya adalah untuk menguji model ini pada sampel yang lebih luas dan mengaplikasikan metode machine learning lainnya untuk membandingkan kinerja model.
Utilization of Waste Cooking Oil as Biodiesel for Portable Stoves: Comparison of Homogeneous and Heterogeneous Catalysts Sipayung, Rosmawati; Amalia, Rahma; Ra'ida Raudhatussya'rifah; Rara Ayu Lestary; Widyastuti, Nita; Mundarti, Sri; Nazarudin
JURNAL ILMIAH PENELITIAN MAHASISWA Vol 3 No 1 (2025): Februari
Publisher : Kampus Akademik Publiser

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jipm.v3i`1.734

Abstract

This research investigates the performance comparison between homogeneous (NaOH) and heterogeneous (CaO) catalyst in biodiesel production from waste cooking oil, specifically focusing on their application as fuel for portable stoves. The study examines the effects of catalyst type with NaOH concentrations of 1%, 2%, and 3%, and CaO concentrations of 4% and 6%, along with methanol-to-oil molar ratios (1:6 and 1:12) on biodiesel yield, product color, and flame characteristics. Results show that NaOH catalyst achieved higher yields (92.30%) at 3% concentration with a 1:6 methanol-to-oil ratio, while CaO catalyst reached maximum yields of 42.00% at 6% concentration with a 1:12 ratio. NaOH-catalyzed biodiesel consistently produced clear yellow coloration, whereas CaO-catalyzed biodiesel showed varying clarity depending on process conditions. In portable stove applications, NaOH-catalyzed biodiesel demonstrated superior performance with faster combustion rates (0.0607 ml/second) and blue flames, compared to CaO-catalyzed biodiesel's slower combustion (0.0412 ml/second) and yellowish-red flames.
Faktor Penyebab Wanita Menunda Pernikahan di Indonesia Usmi, Rana Sahirah; Suryani, Tania Augustine; Maharani, Reizki; Erniati, Emi; Sari, Putri Cahaya Wulan; Vania, Putri Joya; Amalia, Rahma; Putri, Gusia Alia; Norantika, Delta; Isra, Aisa
TRILOGI: Jurnal Ilmu Teknologi, Kesehatan, dan Humaniora Vol 6, No 1 (2025)
Publisher : Universitas Nurul Jadid

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33650/trilogi.v6i1.10061

Abstract

Marriage is a sacred bond between a man and a woman that allows both parties to live together. Marriage is not only recommended by religion but is also important for a prosperous life. Marriage has a significant contribution in the personal and social development of individuals as well as in the formation of a harmonious family. Marriage is often a challenge for women as they have to balance the demands of being financially and psychologically independent with new responsibilities as partners and parents. There has been a tendency for a fairly drastic decline in marriage rates in recent years. This research focuses on the reasons or factors that influence women to postpone marriage in Indonesia. The research method used is scientific literature review research, namely reviewing and describing several articles that are accurate and relevant to the same research topic. From the research result, the factors that women delay marriage include prioritizing higher education levels, family factors, lack of mental readiness for marriage, concerns about financial conditions, fear of the risk of divorce, changes in thought patterns and the increasingly rapid influence of globalization
A Project-Based Learning Approach for Chemical Engineering Students Involving Waste Cooking Oil Biodiesel Production for Portable Stove Application Amalia, Rahma; Sipayung, Rosmawati; Nazarudin
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.11134

Abstract

This study implemented project-based learning in a bioenergy engineering course at the Pondok Meja Campus, Universitas Jambi, involving 17 chemical engineering students during the first semester of the 2024/2025 academic year. Conducted over 13 weeks, the project involved biodiesel production from waste cooking oil using NaOH and CaO catalysts, followed by fuel application in a portable stove. The highest biodiesel yield was 92.3% (3% NaOH, 1:6 oil-to-methanol) and 42.0% (6% CaO, 1:12). The density ranged from 0.87 to 0.89 g/cm³, with stove fuel consumption rates of 0.0607 ml/s (NaOH) and 0.0412 ml/s (CaO). Evaluation involved class participation, lab performance, product presentation, and final reporting, yielding an overall project score of 87/100. Student feedback showed high agreement (mean 4.45/5) in teamwork, problem solving, critical thinking, time management, and proactiveness, supported by lecturer assessments (13.1/15). Challenges included equipment limitations and time constraints, yet all groups completed the project on time. This hands-on approach effectively achieved subject-specific and transferable skills, fostering engineering competence and readiness for real-world bioenergy challenges.
Sosialisasi Aplikasi Penggunaan Pupuk Kompos: Strategi Meningkatkan Kesuburan Tanah di Kota Jambi Suryadri, Hadistya; Prabasari, Ira Galih; Heraningsih, Sarah Fiebrina; Alfernando, Oki; Mundarti, Sri; Sipayung, Rosmawati; Widyastuti, Nita; Lestary, Rara Ayu; Raudhatussya'rifah, Ra'ida; Herlambang, Aldillah; Amalia, Rahma
Pengabdian Cendekia Vol. 3 No. 1 (2025): Vol. 3 No 1 (Juni 2025) Membangun Kecendekian: Transformasi Melalui Pengabdian
Publisher : Indonesian Scholars Global Forum

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63107/pk8kcp98

Abstract

Kesuburan tanah yang menurun akibat penggunaan pupuk kimia secara berlebihan menjadi tantangan serius bagi petani di RT 10 dan 11 Kelurahan Tahtul Yaman, Kecamatan Pelayangan, Kota Jambi. Padahal, wilayah ini memiliki potensi besar berupa limbah organik rumah tangga dan limbah pertanian yang belum dimanfaatkan secara optimal sebagai bahan baku pupuk kompos. Urgensi kegiatan ini terletak pada perlunya solusi berkelanjutan yang ramah lingkungan dan ekonomis dalam pengelolaan kesuburan tanah. Tujuan dari kegiatan pengabdian ini adalah meningkatkan pengetahuan dan keterampilan masyarakat mengenai pembuatan serta pemanfaatan pupuk kompos sebagai alternatif pengganti pupuk kimia. Metode yang digunakan mencakup survei lapangan, sosialisasi materi, praktik langsung pembuatan pupuk kompos, dan diskusi partisipatif, yang dilaksanakan pada 19 Agustus 2024 dan melibatkan 20 warga. Hasil kegiatan menunjukkan peningkatan signifikan dalam pemahaman masyarakat tentang manfaat dan teknik pembuatan pupuk kompos, serta terbentuknya kelompok kerja lokal sebagai bentuk keberlanjutan program. Selain itu, kegiatan ini dapat menunjukkan bahwa edukasi teknis yang terintegrasi dengan praktik langsung dan pendekatan partisipatif mampu memberdayakan masyarakat dalam mengelola limbah organik dan meningkatkan kesuburan tanah secara berkelanjutan.
YouTube Videos Support Descriptive Writing Skills in Junior High School Amalia, Rahma; Santoso, Dian Rahma
Indonesian Journal of Education Methods Development Vol. 20 No. 2 (2025): May
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijemd.v20i2.883

Abstract

General Background: Writing is a fundamental skill in English language learning, yet it poses persistent challenges for students, particularly in constructing descriptive texts. Specific Background: The integration of digital media, such as YouTube, offers a potential solution to enhance writing instruction by providing engaging and accessible content. Knowledge Gap: However, there remains limited empirical evidence on the effectiveness of YouTube as a medium for improving descriptive writing skills among junior high school students. Aims: This study aims to investigate the impact of YouTube video content on students’ ability to write descriptive texts. Results: Utilizing a quantitative pre-experimental design involving a pre-test and post-test, the study revealed a significant improvement in students’ writing performance. The post-test average score (88.6) exceeded the pre-test score (78.6), and the t-test result (-10.247 > 2.085) confirmed the statistical significance of this difference. Novelty: This study contributes novel insights into the use of the “Easy English” YouTube channel as a practical instructional tool specifically targeted at enhancing descriptive text writing. Implications: The findings suggest that YouTube can be effectively incorporated into English language pedagogy to improve students' writing abilities, thereby supporting the development of media-enriched learning environments at the junior high school level. Highlights :  YouTube enhances students’ descriptive writing performance. Pre-experimental design shows significant score improvement. Digital media supports engaging English instruction. Keywords : YouTube, Descriptive Text, Writing Skills, Junior High School, Language Learning 
Implementasi sistem klasifikasi dewey decimal classification (DDC) di perpustakaan Sekolah Dasar Muttaqin, Khoirul; Sakdiya, Badriyatus; Almaida, Dina Rahma; Febrianti, Dwi Erni; Zahroh, Maulida; Widiarti, Melia; Amalia, Rahma
Jurnal Pembelajaran Pemberdayaan Masyarakat (JP2M) Vol. 4 No. 2 (2023)
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/jp2m.v4i2.20679

Abstract

Bibliotek bukan hanya sebagai tempat pengumpulan dan penyimpanan buku-buku untuk dibaca, tetapi juga sebagai sarana belajar mengajar, pusat penelitian dan informasi, sumber informasi dan ilmu pengetahuan yang sangat berguna bagi semua siswa. Selain itu juga diharapkan dapat membantu siswa dan guru menyelesaikan tugas dalam proses belajar mengajar. Dengan menggunakan perpustakaan, siswa menyerap data sebagai pengetahuan dan secara kolektif meningkatkan indra mereka. Munculnya keinginan yang kuat untuk menggunakan bibliografi tercermin dari keinginan untuk terus mendatangi perpustakaan. Dengan demikian, keragaman novel perpustakaan dapat mendukung proses belajar mengajar. Penelitian ini menggunakan penelitian kualitatif dengan sifat deskriptif survey lokasi SDN GONDEK Jombang. Sumber data untuk penelitian ini menggunakan target sampling. Prosedur Pengumpulan Data Penelitian (1) Prosedur Metode Observasi (2) Prosedur Metode Wawancara (3) Prosedur Metode Dokumentasi Dianalisis dalam prosedur penarikan, keabsahan data pengamat diperiksa keabsahan triangulasi data aslinya. Aplikasi ini dapat menyempurnakan bibliografi SDN GONDEK untuk era globalisasi saat ini. Dengan menggunakan teknologi ini, pustakawan dapat dengan mudah mencocokkan bahan pustaka yang dibutuhkan dengan bahan pustaka yang sesuai. Memungkinkan pengguna untuk menelusuri bahan pustaka dan menemukan bahan yang ingin mereka gunakan.
Pengaruh Upah Minimum, Tingkat Pengangguran Terbuka, Dan Pendidikan Terhadap Jumlah Penduduk Miskin Di Jawa Timur Tahun 2014-2023 Amalia, Rahma; Khafiah, Lastri; Kurniawan, Muhammad; Tahta Rajani
Ekopem: Jurnal Ekonomi Pembangunan Vol. 7 No. 3 (2025): Jurnal Ekonomi Pembangunan
Publisher : Program Studi Ekonomi Pembangunan Fakultas Ekonomi dan Bisnis Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jep.v7i3.7125

Abstract

Kemiskinan merupakan permasalahan kompleks dan multidimensional yang dihadapi oleh berbagai negara, termasuk Indonesia. Jawa Timur, sebagai salah satu provinsi dengan populasi terbesar di Indonesia, memiliki tingkat kemiskinan yang masih tergolong tinggi. Upah minimum, tingkat pengangguran terbuka, dan pendidikan merupakan tiga faktor penting yang diyakini memiliki pengaruh terhadap tingkat kemiskinan. Upah minimum diharapkan dapat meningkatkan daya beli masyarakat miskin, sedangkan tingkat pengangguran terbuka dan pendidikan yang rendah dapat memperparah kondisi kemiskinan. Penelitian ini bertujuan untuk menganalisis pengaruh Upah Minimum, Tingkat Pengangguran Terbuka dan Pendidikan terhadap Jumlah Penduduk Miskin di Provinsi Jawa Timur. Variabel bebas yaitu Upah Minimum, Tingkat Pengangguran Terbuka, dan Pendidikan, dan yang menjadi variabel terikat adalah Jumlah Penduduk Miskin. Penelitian ini menggunakan data sekunder dengan bentuk time series yaitu runtuk waktu selama 10 tahun yaitu dari tahun 2014-2023 data yang digunakan diperoleh dari BPS Indonesia. Metode penelitian yaitu kuantitatif dengan analisis data yang digunakan oleh peneliti yaitu Uji asumsi klasik ( Uji Normalitas, Uji Multikolinearitas, Uji Heteroskedastisitas, Uji Autokorelasi), Regresi linier berganda dan uji statistik ( Uji Koefisien determinasi (R2) , Uji t dan Uji f ) dengan menngunakan iviews – 10. Hasil koefisien regresi secara parsial menunnjukan bahwa upah minimum dan pendidikan tidak berpengaruh terhadap jumlah penduduk miskin di Jawa Timur, sedangkan tingkat pengangguran terbuka berpengaruh signifikan terhadap jumlah penduduk miskin di Jawa Timur.
Co-Authors Aldillah Herlambang Alfernando, Oki Almaida, Dina Rahma ANITA QOIRIAH Erniati, Emi Febrianti, Dwi Erni I. Istadi Isra, Aisa Khafiah, Lastri Lestary, Rara Ayu Maharani, Reizki Muhammad Kurniawan Mundarti, Sri Muttaqin, Khoirul Nazarudin Norantika, Delta Prabasari, Ira Galih Putri, Gusia Alia Ra'ida Raudhatussya'rifah Rara Ayu Lestary Raudhatussya'rifah, Ra'ida Riyanto, Teguh Rosmawati Sipayung Sakdiya, Badriyatus Santoso, Dian Rahma Sarah Fiebrina Heraningsih Sari, Putri Cahaya Wulan Suryadri, Hadistya Suryani, Tania Augustine Tahta Rajani Usmi, Rana Sahirah Vania, Putri Joya Widiarti, Melia Widyastuti, Nita Zahroh, Maulida