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PENGARUH PENAMBAHAN KATALIS CaO DAN CaO TERIMPREGNASI KOH BERBASIS CANGKANG TELUR TERHADAP HASIL SINTESIS BIODIESEL DARI MINYAK JARAK, MINYAK KELAPA DAN MINYAK KELAPA SAWIT
Muarif , Agam
; Mulyawan , Rizka
; Nurlaila, Rizka
; Fikri, Ahmad
; Armita Sandi, Nazlia
; Cinta Buana Nasution, Vinkhan
; Syahrani, Irma
Jurnal Inovasi Teknik Kimia
Vol 10
, No 2
(2025)
Biodiesel merupakan bahan bakar alternatif yang sifatnya renewable energy dan ramah lingkungan yang dapat disintesis dari beberapa jenis minyak seperti minyak jarak, minyak kelapa, minyak kelapa sawit dan sebagainya. Hal ini didukung oleh kandungan senyawa yang terdapat dalam ketiga jenis minyak tersebut disertai dengan bahan baku yang mudah didapatkan dan dibudidayakan di Indonesia. Proses pembuatan biodiesel dari minyak melalui reaksi esterifikasi dan transesterifikasi dengan menggunakan bantu...
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Characteristics of Students in Physics Learning: Learning Motivation, Learning Styles, and Learning Experiences at Senior High School in Padang City
Ahzari, Serli
; Nabila, Putri
; Yulianda
; Desnita
; Usmeldi
Jurnal Penelitian Pembelajaran Fisika
Vol 16
, No 2
(2025)
This research aims to analyze the characteristics of students in physics learning, focusing on learning motivation, learning styles, and learning experiences. The research employs a descriptive method with a questionnaire as the instrument, distributed to 54 high school student respondents in Padang City. The data is analyzed quantitatively based on the percentage score for each indicator. The results show that students' learning motivation falls into the good category (73%), the most dominant l...
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ANALYSIS OF FACTORS THAT CREATE PURCHASE DECISIONS AT MYKAN CAFE BEKASI: ANALYSIS OF FACTORS THAT CREATE PURCHASE DECISIONS AT MYKAN CAFE BEKASI
International Journal of Management, Business and Social Sciences
Vol 3
, No 02
(2025)
This study is based on the decline in revenue experienced by Mykan Cafe during 2023 compared to the previous year, which indicates a decline in consumer purchasing decisions. In the context of increasingly competitive culinary business competition, it is important to understand the factors that influence purchasing decisions to formulate an effective marketing strategy. So, this study was conducted to examine the factors that influence purchasing decisions at Mykan Cafe Bekasi. With the determin...
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Teaching at The Right Level Approach with the Problem Based Learning Model Effect on Physics Problem Solving Ability
Jurnal Penelitian Pembelajaran Fisika
Vol 16
, No 2
(2025)
Physics lessons are among the most interesting because they relate to actual events. Physics learning requires an independent learning process that equips students with problem-solving skills. This study examines how the Problem-based Learning (PBL) model and the Teaching at the Right Level (TaRL) strategy affect the resolution of physics issues involving momentum and impulse topics. There are 375 grade XI students participating in a quasi-experiment with a non-equivalent control group design. T...
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Project Based Learning Assisted by E-Worksheet Effect on Creative Thinking Ability on Renewable Energy Topic
Jurnal Penelitian Pembelajaran Fisika
Vol 16
, No 2
(2025)
The study aims to determine the effect of physics learning using the Project Based Learning (PjBL) model assisted by E-LKPD based on Live Worksheet on the creative thinking ability of grade X students and how much influence physics learning with project-based learning model assisted by E-LKPD based on live worksheet on the creative thinking ability of grade X students. The research was conducted with a quasi-experiment design involving experimental and control classes. The results showed the ave...
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A Novel Classification Framework Using Transformer-Based Encoding and Low-Rank Tensor Fusion for Enhanced Classification and Efficiency
Advance Sustainable Science, Engineering and Technology
Vol 7
, No 2
(2025)
This paper proposes a transformer-based framework for sentiment analysis, designed to improve both accuracy and computational efficiency across diverse datasets. The model incorporates a low-rank tensor fusion mechanism to reduce computational complexity, optimizing the transformer encoder’s performance. Through an extensive evaluation on three benchmark datasets—Airlines, CrowdFlower, and Apple—our approach demonstrates superior performance in sentiment classification tasks, achieving accuracy...
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Molecular Identification of Color Variants of Procambarus clarkii Using the COI Gene for Taxonomic Validation
Bhagawati, Dian
; Husein Sastranegara, Muhammad
; Agus Nuryanto
; Anastasia Endang Pulungsari
; Elly Tuti Winarni
; Atang
; Hanan Hassan Alsheikh Mahmoud
Advance Sustainable Science, Engineering and Technology
Vol 7
, No 2
(2025)
This study addresses taxonomic uncertainty surrounding color variants of Procambarus clarkii in aquaculture and conservation contexts. We investigated whether commercially significant color morphs represent distinct subspecies or phenotypic variations of a single species. Using the cytochrome c oxidase subunit I (COI) gene as a molecular marker, we analyzed four color morphs (blue, white, orange, and brown) from aquaculture facilities in Banyumas Regency. DNA extraction, PCR amplification, and s...
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The Effectiveness of Using Smartphone-Based Phyphox in Field Practice Tilt to Improve Students' Creative Thinking Skills
Rusdin, Muhammad Epi
; Prasetyo, Erwin
; Anwar, Zaina
; Pujianti Bejahida Donuata
; Nurfadilah
; Farizi, Zakaria Al
Jurnal Penelitian Pembelajaran Fisika
Vol 16
, No 2
(2025)
The use of technology is a solution to overcome problems in physics learning. This study aims to determine the effectiveness of using Smartphone-based Phyphox in improving students' creative thinking skills. The design used in this research is a nonequivalent pre-test and post-test control group design. This study used a purposive sampling technique to get two groups. The statistical analysis used was independent sample t-test. The results of the analysis showed that there was an effect of using...
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Remediation of Student Errors in Solving Work and Energy Problems Using the Fast Feedback Method
Jurnal Penelitian Pembelajaran Fisika
Vol 16
, No 2
(2025)
The study aims to determine the effectiveness of the fast feedback method based on problem-solving according to Polya in remediating student errors in solving work and energy problems at SMP Negeri 4 Dedai. This study is in the form of a pre-experimental study with a one-group pre-test post-test design. The sample of this study consisted of 22 students from class VIII B, which was the experimental class. The data collection tool was a 5-item essay test validated (validity level of 3.6 in the mod...
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Sustainable Aquaculture: The Role of Probiotic Fortification In Enhancing Catfish Growth In Biofloc Aquaponics Technology
Dewi, Endah Rita Sulistya
; Mufidah, Ratna
; Rakhmawati, Reni
; Ulfah, Maria
; Khoiri, Nur
; Wijaya, Angelica Tricia
; Hudin, Noraine Salleh
Advance Sustainable Science, Engineering and Technology
Vol 7
, No 2
(2025)
Catfish (Pangasius sp.) is a freshwater fish commodity that is widely cultivated in the Indonesian fisheries sector. The aim of this research was to determine the effect of fortification of liquid probiotics bioprisma and biogan on the protein and fat of catfish meat in the biofloc aquaponics technology. The catfish used in this study was 7-8 cm in size. The research was carried out using a completely randomized design (CRD) method with 3 treatments and 3 replications, the treatments were as fol...
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