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All Journal IAES International Journal of Robotics and Automation (IJRA) Jurnal Neutrino : jurnal fisika dan aplikasinya Jurnal Tadris Kimiya JIPF (Jurnal Ilmu Pendidikan Fisika) PENDIPA Journal of Science Education Jurnal Pendidikan Multikultural Indonesia Eduproxima : Jurnal Ilmiah Pendidikan IPA Hydrogen: Jurnal Kependidikan Kimia International Journal of Research in Education (IJRE) Aktual : Jurnal Pengabdian Kepada Masyarakat
M. Lutfi Firdaus, M. Lutfi
University of Bengkulu
Religion Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Languange, Linguistic, Communication & Media Mathematics Physics Public Health Social Sciences Other

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Budaya Jawa dan Peranannya dalam Nilai-Nilai Kepemimpinan Fauzan, Ahmad Al; Fahima, Bima; Geminastiti, Elis Anggun; Hadi, Hanifa Rahma; Firdaus, M. Lutfi; Renata, Maria; Ramadhan, M. Rizqi
Jurnal Pendidikan Multikultural Indonesia Vol 4, No 1 (2021): April
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jpmu.v4i1.30063

Abstract

Generasi muda saat ini sudah dirancang untuk menjadi pemimpin Indonesia di masa depan. Pembentukan sifat kepemimpinan pada seorang pemimpin sangat dipengaruhi oleh kebiasaan dan budaya yang ada di lingkungan sekitarnya. Masyarakat Indonesia memiliki suku yang beragam dengan mayoritasnya bersuku Jawa. Banyak pemimpin ataupun tokoh yang berkontribusi untuk nasional bersuku Jawa. Budaya Jawa adalah salah satu budaya yang adiluhung. Tujuan penelitian ini adalah untuk mengetahui budaya-budaya jawa yang berperan dalam pembentukan nilai-nilai kepemimpinan seseorang, sehingga dapat menjadi acuan dalam melatih dan membentuk sifat kepemimpinan. Metode penelitian ini menggunakan kuesioner dengann 80 responden yang merupakan mahasiswa menjawab kuesioner tentang skala peranan tiap nilai budaya Jawa terhadap kepemimpinan seseorang. Hasilnya adalah sebagian besar responden setuju bahwa budaya-budaya Jawa memang berpengaruh dalam kepemimpinan seseorang, sehingga budaya-budaya Jawa dapat diterapkan untuk meningkatkan nilai kepemimpinan seseorang.  
Optimasi Sintesis Ligan Diheksilditiofosfat (DHDTP) Menggunakan Response Surface Method (RSM) Hendrati, Diana; Mardhotillah, Yulia; Anggraeni, Anni; Firdaus, M. Lutfi; Wyantuti, Santhy
PendIPA Journal of Science Education Vol 6, No 1 (2022): November - February
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.6.1.285-290

Abstract

Dihexyldithiophosphate (DHDTP) ligand is one of the homologues of dialkyldithiophosphate which is potentially better as an extractant in solvent extraction. The longer the chain in the dialkyldithophosphate compound, ability to dissolve into the organic phase is increasing compared to the shorter chain. The purpose of this study is to synthesize DHDTP ligands and find out the optimum reaction conditions to produce DHDTP ligands with optimal purity using the BoxBehnken (BBD) response surface method (RSM). DHDTP ligands are synthesized from P2S5 by reflux after addition of n-hexanol under a nitrogen gas environment. Ammonium carbonate is added to the reflux to pH 7, then evaporated to remove the solvent. The synthesized DHDTP ligand was then purified by column chromatography with a mobile phase methanol : aquadest (2.5% gradient). DHDTP ligands were examined for purity using a reverse phase HPLC with a mobile phase methanol: aquadest 3: 2. The purity of the best DHDTP synthesis results obtained was 87.34%. The DHDTP ligand formed was characterized to confirm the structure of its ligand compound by using a UV spectrophotometer in which the synthesis product showed maximum absorption at a wavelength of 212 nm and mass spectroscopy ES- with m / z 297.1687.
Applying PhET Interactive Simulations Media With A Guided Investigation Approach to Improve Student’s Critical Thinking Skills Yunitasari, Yunitasari; Firdaus, M. Lutfi; Wardana, Rendy Wikrama; Putra, Syalendra
International Journal of Research in Education Vol 4, No 1 (2024): Issued in January 2024
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/ijre.v4i1.17327

Abstract

The purpose of this research is implementation PhET Interactive Simulations Media with a Guided Inquiry Approach to Improve Students' Critical Thinking Skills" based on the description provided above. Physics Educational Technology (PhET) simulations is the virtual laboratory makes use of practical simulation principles to carry out engaging learning. By using an inquiry-based learning approach, students are trained to formulate problems, generate hypotheses, conduct experiments, gather data, analyze data, write and describe theories, and honestly follow rules so that the actions of the offenders mirror those of scientists. This study method is quasi-experimental, because it uses a guided inquiry learning strategy to assess how critical thinking abilities are improved when learning the pH of acid and base solutions. The study's conclusion is combining PhET Interactive Simulations media with a guided inquiry approach, the average learning outcomes are higher than when using a conventional learning.
Assembling, simulating, and recording robot videos as an effort to motivate middle school students and teachers of Science in Bengkulu Province Mayub, Afrizal; Fahmizal, Fahmizal; Firdaus, M. Lutfi; Johan, Henny; Ruyani, Aceng; Karyadi, Bhakti
IAES International Journal of Robotics and Automation (IJRA) Vol 12, No 2: June 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijra.v12i2.pp146-156

Abstract

The aim of this study was to determine the motivation of science teachers and students towards science after participating in the activity of assembling, simulating, and recording line follower robots as an effort to motivate middle school students and teachers towards science in Bengkulu Province. The research was done by direct practicing, where 60 students and 15 teachers of three junior high school (SMP): SMP Negeri 06 Seluma, SMP Negeri 02 Kota Bengkulu, and SMP Negeri 8 Rejang Lebong, were involved as the research subjects. The research activity concluded that the schools are ready to prepare simple electronics/robot laboratories for the three research subjects and the science teachers and students were motivated to learn science. It was seen from the score of 3.95 (scale of 1 to 5) for students, and for the science teacher, the score was 3.83 (scale of 1 to 5). The science teachers will follow up on robotics activities so that students will be interested in learning science at home and school.
Budaya Jawa dan Peranannya dalam Nilai-Nilai Kepemimpinan Fauzan, Ahmad Al; Fahima, Bima; Geminastiti, Elis Anggun; Hadi, Hanifa Rahma; Firdaus, M. Lutfi; Renata, Maria; Ramadhan, M. Rizqi
Jurnal Pendidikan Multikultural Indonesia Vol. 4 No. 1 (2021): April
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jpmu.v4i1.30063

Abstract

Kurangnya kesadaran para pemimpin untuk mengatasi permasalahan sosial yang ada, misalnya angka kemiskinan yang kian meningkat, pengangguran yang semakin banyak, angka kriminalitas dan lainnya. Tujuan penelitian ini adalah untuk menganalisis  budaya-budaya Jawa yang berperan dalam pembentukan nilai-nilai kepemimpinan seseorang, sehingga dapat menjadi acuan dalam melatih dan membentuk sifat kepemimpinan. Metode penelitian ini menggunakan kuesioner dengan 80 responden yang merupakan mahasiswa menjawab kuesioner tentang skala peranan tiap nilai budaya Jawa terhadap kepemimpinan seseorang. Hasilnya adalah sebagian besar responden setuju bahwa budaya-budaya Jawa memang berpengaruh dalam kepemimpinan seseorang, sehingga budaya-budaya Jawa dapat diterapkan untuk meningkatkan nilai kepemimpinan seseorang. Implikasi penelitian ini diharapkan dapat memberikan kontribusi dalam menanamkan nilai-nilai kepemimpinan berdasarkan nilai-nilai adiluhung budaya Jawa.
Biosynthesis of Gold Nanoparticles Using Wuluh Star Fruit (Averrhoa bilimbi) for Chromium Analysis Dewi, Ria Kemala; Firdaus, M. Lutfi; Nursa'adah, Euis
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 1 (2024): February 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i1.10188

Abstract

One of the heavy metals that can pollute waters is the heavy metal chromium (Cr). Chromium has many important roles in life. Chromium material is widely used by humans for various purposes, especially in the industrial world. However, the large number of uses of chromium in the industrial world and the waste it generates can have a negative impact on the environment and human health. One way to deal with chromium pollution is by analyzing the presence of chromium in waters. The aim of this research is to analyze the presence of chromium using a simple, effective, economical and accurate method, namely the biosynthesis of gold nanoparticles using samples of starfruit (Averrhoa bilimbi) as a bioreductor rich in ascorbic acid, with a colorimetric method, namely a method based on the aggregation of gold nanoparticles with ascorbic acid from starfruit, which causes a shift in plasmons and causes color changes that can be seen by the eye. Based on the analysis results, data was obtained that gold nanoparticles synthesized from the starfruit bioreductor can detect chromium with a concentration of 10 ppm with optimum conditions at pH 5, temperature 75oC, optimum incubation time of 5 minutes and gold nanoparticles are selective and sensitive for detecting chromium.
DESKRIPSI ANALISIS KEBUTUHAN MEDIA PEMBELAJARAN IPA KELAS VII MTsN 1 SELUMA Junaini, Junaini; Nursaadah, Euis; Firdaus, M. Lutfi
PendIPA Journal of Science Education Vol 8 No 2 (2024): June
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.8.2.121-125

Abstract

The aim of this research was to analyze the needs of students in science learning at MTsN 1 Seluma, Bengkulu. The method used was a survey via questionnaire with 9 questions given to 30 class VII students. The survey results show that 100% of students have textbooks/handbooks, 100% have smartphones, 93% have difficulty studying material that only comes from books, so 100% of students look for other materials besides books from school to help understand the material. science via the internet, therefore 100% of students need interesting alternative learning media. In science learning, students agree that there is Android-based learning media for science material, especially environmental pollution material. Students want learning to be adapted to current developments and technology, interesting, interactive, and can be accessed anytime and anywhere via smartphone. Implementation of media in the form of Android-based applications can be an alternative to empower students' use of technology and to improve the quality of science learning.
The Use of Telang Flower Extract (Clitoria ternatea L.) as a Natural Universal pH Indicator coupled with Digital Image Colorimetry Esterlin; Nursaadah, Euis; Wardana, Rendy W.; Firdaus, M. Lutfi
PendIPA Journal of Science Education Vol 8 No 3 (2024): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.8.3.480-487

Abstract

The acid base indicators commonly used by scientists are mostly synthetic indicators that are harmful for the environment.Moreover, chemists need various chemicals to detect broad pH ranges for acid and base samples solution.  The aim of this research was to create a natural universal pH indicator from telang flower (Clitoria ternatea L.) extract coupled with the digital image detection. The universal pH indicator is very important in education chemistry that broadly used for titration and other class room chemical experiments. This process of making a natural universal pH indicator integrated with digital images meets green chemistry criteria that use environmentally friendly materials and technology. The results show that color absorption data at pH 1-2 are purple, pH 3-5 are violet, pH 6-10 are blue, pH 11-12 are green and pH 13-14 are yellow. RGB intensity digital image data shows the intensity of the red color increases in the pH range 6-11, while the intensity of the green and blue colors tends to be stable. The proposed method was validated using a UV-Vis spectrophotometer and conventional pH meter that give the comparable results.
Development Of An Arduino Iot System Solar Cell Electronic Practicum Guide Based On An Automatic Feed Thrower Prototype To Develop Students' Science Process Skills Wardana, Rendy Wikrama; Anggraini, Yestilia; Firdaus, M. Lutfi; Yanti, Fitri April; Wibowo, Firmanul Catur; Fitri, Elsi Adelia
JIPF (Jurnal Ilmu Pendidikan Fisika) Vol 10, No 1 (2025): January 2025
Publisher : STKIP Singkawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26737/jipf.v10i1.5304

Abstract

Science learning, especially in physics, is an abstract concept and difficult for students to understand. In addition, there is also a need for a bridge that can connect physics concepts with life in the student's daily environment. Therefore, technological innovations are needed in learning such as developing an electronic practicum guidebook for solar cells, Arduino IoT systems based on automatic feed thrower prototypes to develop students' science process skills. This study used a 4D model. The subjects of this study were 6th semester S1 Science students totaling 52 students. The data generation instrument uses questionnaires and implementation observation sheets. Data analysis techniques use qualitative and qualitative. Based on the results of the validation that has been carried out, the practicum guide that has been prepared as a whole has eligibility criteria that are very feasible to use, with a percentage of 92.25%, while the students' science process skills in the solar cell electronic practicum guide for the Arduino IoT system based on the prototype of this automatic feed thrower get an average of 92% with a very good category so that it can be considered that students are good at understanding and Work on the basis of practicum guidelines developed.
ENVIRONMENTALLY FRIENDLY BRIQUETTES MADE FROM A MIXTURE OF SNAKE FRUIT SKIN AND GOAT MANURE Rotami, Ladya; Wardana, Rendy Wikrama; Setiawan, Iwan; Anjarsari, Putri; Firdaus, M. Lutfi
Jurnal Neutrino:Jurnal Fisika dan Aplikasinya Vol 18, No 1 (2025): October
Publisher : Universitas Islam Negeri Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/neu.v18i1.32592

Abstract

The purpose of this study is to make snake fruit briquette charcoal mixed with goat dung an alternative energy source that supports environmentally friendly technology. The samples used were snake fruit and goat dung as charcoal and tapioca flour as an adhesive. Each sample has 200 grams of charcoal and 30 grams of adhesive. The percentage of charcoal is 50% snake fruit bark charcoal and 50% goat dung charcoal. Snake fruit briquettes and goat dung are divided into 3 groups: A1 (87% charcoal: 13% adhesive), A2 (77% charcoal: 23% adhesive), and A3 (97% charcoal: 3% adhesive). In 3 samples tested with the percentage of charcoal flour to tapioca flour, the first one was produced in sample A1 (87%: 13%), which produced a moisture content of 9.87%, an ash content of 36.75%, and a calorific content of 5899 kcal/kg. The A2 sample (77%:23%) yielded a moisture content of 11.44%, an ash content of 32.13%, and a calorific content of 5634 kcal/kg. The A3 sample yielded a moisture content of 8.93%, an ash content of 41.38%, and a calorific content of 6339 kcal/kg.  This study concludes that the best calorific value in the A3 sample is 97% charcoal briquettes with 3% adhesive, with a calorific value of 6339 cal/kg.
Co-Authors ACENG RUYANI Anggraini, Yestilia Anni Anggraeni, Anni BHAKTI KARYADI Dewi , Deshinta Arrova Dewi, Ria Kemala Elsi Adelia Fitri Endang Widi Winarni Esterlin Fahima, Bima Fahmizal, Fahmizal Fauzan, Ahmad Al Firmanul Catur Wibowo Fitri April Yanti, Fitri April Geminastiti, Elis Anggun Hadi, Hanifa Rahma Hendrati, Diana Henny Johan Iresta Wardani, Firdha Iwan Setiawan Junaini, Junaini Lazfihma, Lazfihma Mardhotillah, Yulia Mayub, Afrizal Mukti Dono Wilopo Mulia Ramadhani, Adella Nursa'adah, Euis Nursaadah, Euis Pradipta, Andika Putra, Syalendra Putri Anjarsari Ramadhan, M. Rizqi Renata, Maria Rotami, Ladya Santhy Wyantuti Suherman, Suherman Walid, Ahmad Wardana, Rendy W. Wardana, Rendy Wikrama Yar Johan, Yar Yunitasari Yunitasari, Yunitasari Zulkarnain Zulkarnain