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All Journal Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam The Journal of Pure and Applied Chemistry Research Journal of Mechanical Engineering Education (Jurnal Pendidikan Teknik Mesin) IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Science and Technology Indonesia Jurnal Penelitian Sains IJEMS (Indonesian Journal of Environmental Management and Sustainability) VISI : Jurnal Ilmiah Pendidik dan Tenaga Kependidikan Pendidikan Non Formal Journal of Educational Research and Evaluation International Journal of Community Service Learning PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Molekul: Jurnal Ilmiah Kimia Edsence: Jurnal Pendidikan Multimedia Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat Jurnal Abdi Insani Jurnal Paedagogy Jurnal Teknik Industri Terintegrasi (JUTIN) International Journal of Sustainable Transportation Technology Jurnal Pengabdian kepada Masyarakat Nusantara Jurnal Kependidikan: Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran dan Pembelajaran Jurnal Abmas Jurnal Industri dan Teknologi Samawa (JITSA) Jurnal Insinyur Profesional Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Jurnal Pepadu Jurnal Guru Komputer Jurnal Ilmiah Sistem Informasi
Dedi Rohendi
Universitas Pendidikan Indonesia
Religion Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Transportation Other

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PELATIHAN PEMBUATAN DESINFEKTAN DAN HAND SANITIZER DENGAN PENAMBAHAN AROMA ALAMI SEBAGAI UPAYA PENCEGAHAN PENULARAN VIRUS COVID-19 Poedji Loekitowati Hariani; Salni; Muhammad Said; Fatma; Dedi Rohendi
Jurnal Abdi Insani Vol 8 No 2 (2021): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v8i2.394

Abstract

Desinfektan dan hand sanitizer merupakan bahan kimia yang sering digunakan untuk pencegahan penularan virus covid-19. Mahalnya harga desinfektan dan hand sanitizer, serta banyaknya informasi secara online tentang pembuatan kedua bahan tersebut maka banyak masyarakat yang membuat desinfektan dan hand sanitizer sendiri. Pembuatan desinfektan dan hand sanitizer tanpa memiliki pengetahuan yang cukup justru memiliki resiko terhadap kesehatan dan lingkungan. Kegiatan pengabdian masyarakat ini bertujuan memberikan pelatihan pembuatan desinfektan dan hand sanitizer yang tepat yaitu sesuai standar WHO, dengan penambahan aroma alami ekstrak daun serai. Ekstrak daun serai bersifat antibakteri, antiseptik dan memiliki aroma yang segar. Kegiatan juga memberikan pelatihan cara penggunaaan desinfektan dan hand sanitizer yang tepat. Khalayak sasaran dalam kegiatan ini adalah masyarakat dusun IV desa Tanjung Seteko, kecamatan Indralaya, Ogan Ilir. Hasil kegiatan menunjukkan meningkatnya pemahaman dan ketrampilan masyarakat dalam pembuatan desinfektan dan hand sanitizer yang dibuat dengan penambahan ekstrak daun serai
Meningkatkan Kompetensi Profesional Guru dalam Digitalisasi Konten di Ciletuh Sukabumi Dedi Rohendi
ABMAS Vol 23, No 1 (2023): Jurnal Abmas, Juni 2023
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/abmas.v23i1.53703

Abstract

Guru memiliki tugas profesional sesuai dengan tugas poko dan fungsinya. Membuat perencanaan pembelajaran merupakan tugas awal kemudian diakhiri dengan penilaiannya. Salah satu aspek yang harus disiapkan guru sebelum mengajar adalah mengembangkan bahan ajar. Bahan ajar termasuk salah satu aspek dalam instrumental input dari sistem pembelajaran yang memegang peran penting untuk memperlancar proses dan tujuan pembelajaran yang diinginkan. Namun, berdasarkan pengalaman di lapangan, literasi digital guru belum merata, apalagi harus menggunakan atau mengembangkan bahan ajar berbasis TIK atau bahan ajar digital, pengolahan nilai, administrasi siswa, bahkan sampai membuat multimedia interaktif. Hal ini terjadi terutama di daerah yang akses TIK nya dan kesempatan memperoleh pelatihan-pelatihan masih terbatas, seperti di luar kota. Salah satu faktor penyebabnya adalah kurangnya kesadaran dan kesempatan guru untuk dapat mengembangkan kemampuan dirinya, selain kesempatan untuk memperoleh pelatihan pada bidangnya yang juga masih terbatas. Oleh karena itu, dalam rangka turut serta meningkatkan kemampuan guru dalam pembuatan bahan ajar digital, kami mengajukan kegiatan ini. Tujuan dari kegiatan ini adalah diharapkan guru-guru mampu mengembangkan bahan ajar digital, mengintegrasikan tekmologi dalam pembelajaran dan dapat memanfaatkan teknologi untuk kepentingan akademik dan administrasi di sekolah. Metode yang digunakan dalam kegiatan ini adalah pelatihan, praktek pembuatan media, diskusi dan proyek. Luaran kegiatan ini adalah guru dapat menghasilkan bahan ajar digital dan mengintegrasikan tekmologi dalam pembelajaran, dan  dapat memanfaatkan teknologi untuk kepentingan akademik dan administrasi. 
Kompetensi Guru SMK dalam Memahami dan Implementasi Soal Berbasis HOTS dalam Kurikulum Merdeka Kamin Sumardi; M. Syaom Barliana; Dedi Rohendi
ABDI: Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol 6 No 1 (2024): Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat
Publisher : Labor Jurusan Sosiologi, Fakultas Ilmu Sosial, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/abdi.v6i1.620

Abstract

Taksonomi Bloom yang telah direvisi oleh Anderson and Krathwohl bahwa high order thinking skills adalah kemampuan berpikir pada tingkat yang lebih tinggi yang melibatkan kemampuan menganalisis, mengevaluasi, dan mencipta. Kemampuan membuat soal berbasis HOTS harus dimiliki oleh Guru SMK dalam konteks kurikulum merdeka. Penelitian ini bertujuan memperoleh data pengetahuan dan implementasi soal berbasis HOTS oleh guru SMK dalam kurikulum merdeka. Metode pelatihan menggunakan in house training. Pelatihan dilaksanakan pada bulan Agustus 2023 di aula SMKN 1 Pebayuran, kabupaten Bekasi. Instrumen yang digunakan yaitu angket yang menggunakan google form. Responden pelatihan adalah guru SMK sebanyak 40 orang. Hasil pelatihan menunjukkan bahwa 89% guru sudah memahami soal berbasis HOTS. Sebanyak 90% guru SMK sudah mengimplementasikan soal dalam kegiatan belajar mengajar. Sebanyak 92% guru sudah mendapatkan pelatihan cara membuat soal berbasis HOTS. Kemampuan guru dalam pemahaman, implementasi dan pelatihan soal berbasis HOTS dipengaruhi oleh jenis kelamin, usia, pengalaman mengajar dan pelatihan. Guru SMK dapat menggunakan soal berbasis HOTS dalam pembelajaran untuk meningkatkan kualitas lulusan sesuai tuntutan kompetensi abad 21.
The Influence of Catalyst Loading on Electrocatalytic Activity and Hydrogen Production in PEM Water Electrolysis Rohendi, Dedi; Amelia, Icha; Sya'baniah, Nyimas Febrika; Yulianti, Dwi Hawa; Syarif, Nirwan; Rachmat, Addy; Fatmawati; Majlan, Edy Herianto
Science and Technology Indonesia Vol. 9 No. 3 (2024): July
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2024.9.3.556-564

Abstract

The climate change caused by the widespread and continuous use of fossil fuels is a problem that needs to be addressed urgently. One of the solutions offered is through an energy transition towards the use of new or renewable and low-carbon fuels. Hydrogen gas as a carrier of energy is an alternative solution that has attracted the attention of researchers, due to its high combustion energy and environmental friendliness. The production of hydrogen gas using the Proton Exchange Membrane Water Electrolysis (PEMWE) method is considered effective for large-scale production. This study investigates the impact of catalyst loading and various current densities on hydrogen production in the PEM water electrolysis process, utilizing the Cu2O/C catalyst. This study investigates the impact of catalyst loading and different current densities on hydrogen production in the PEM water electrolysis process, utilizing the Cu2O/C catalyst. The electrode catalytic properties were evaluated using the Cyclic Voltammetry (CV) method to determine the Electrochemical Surface Area (ECSA) and the Electrochemical Impedance Spectroscopy (EIS) method to determine the electrical conductivity. The ECSA and EIS measurements demonstrated that the best results were obtained at a higher catalyst loading of 2 mg/cm2 with an ECSA value of 0.21 m2/g and electrical conductivity of 3.04 × 10−6 S/cm. The production of hydrogen results showed that the highest hydrogen production rate was 3.75 mL/s with a catalyst loading of 2.5 mg/cm2, indicating that increasing the load could lead to a higher rate of hydrogen gas production, but this is highly dependent on the surface area utilized. Additionally, at higher current densities, the cell resistance in the electrolysis process may decrease, leading to reduced electrode efficiency for hydrogen production. Thus, the use of high currents may not always be advantageous in hydrogen production using the PEM water electrolysis method.
DEVELOPING OF INSTRUMENTS ON BASIC COMPETENCIES TO KNOW AND USE LETTERS, NUMBERS AND ETHICS WITH QUIZIZZ Nugraha, Agri Triya; Rohendi, Dedi; Purnawan, Purnawan
Journal of Mechanical Engineering Education (Jurnal Pendidikan Teknik Mesin) Vol 8, No 1 (2021): Juni
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/jmee.v8i1.35580

Abstract

At the beginning of 2020, the emergency of the corona virus which caused an uproar in various countries in the world. Indonesia was one of the countries affected by the Covid-19 pandemic  virus. Corona virus disease 2019 (COVID-2019). This has an impact on the world of education, in the midst of the Covid-19 pandemic, the learning and assessment process must still be carried out. Remote assessment evaluation tools can use applications, there are many applications that can be selected by the teacher. One of them is the quizizz application, researchers chose the quizizz application because the quizizz feature can be fully felt for free, while other applications need to upgrade to the paid version to get more varied features and the quizizz apllication can be played in support of exam mode and can load many participants. The research aims at; (1) Producing basic competency instruments to recognizing and using letters, numbers and tags in technical drawings (2) Obtaining instrument eligibility data based on expert tests, and (3) Obtaining instrument validation data, including validity, reliability, differentation, and diffuclty index. The method used is the ADDIE model development method consisting of steps of analysis, design, develop, implement and evaluate. The research has produced a basic competency instrument of recognizing and using letters, numbers and etiquette in the subject of technical drawing of class X light vehicle engineering in the form of an objective test of multiple choice 5 options totaling 30 items. The average result of the validation of all expert tests was 81,5 % with the very valid category. The results of the instrumen testing on students showed that all items were valid, high realibility with difficulty index ;  27 % easy, 60 % moderate, 13 % difficult, and their distinguishing power ; 80 % is in the fair category and 20 % is in the good category.
Development of Reciprocal Teaching-Based Interactive Multimedia to Enhance Students' Learning Outcomes of Database Fundamentals Subarna, Bambang; Rohendi, Dedi; Rasim, R
Jurnal Guru Komputer Vol 3, No 1 (2022): JGrKom: July 2022
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/jgrkom.v3i1.63999

Abstract

Database subjects are one of the basic compulsory subjects for the Computer Engineering and Informatics program. For Software Engineering students, topics such as Data Definition Language (DDL) and Data Manipulation Language (DML) are crucial for understanding advanced lessons. However, learning outcomes have been low due to factors such as suboptimal media, methods, models, and teaching processes. This research aims to design reciprocal teaching-based interactive multimedia to enhance student learning outcomes in DDL and DML materials. The research method used is adapted from the Comprehensive Life Cycle model, with a sample of students from class X-RPL-1 at Bina Wisata Lembang Vocational High School.The results of this study are as follows: 1) An average percentage of 80% was obtained from media experts and 80% from subject matter experts, both categorized as “Very Good”. 2) The use of multimedia improved student learning outcomes, demonstrated by an average score increase from 34 to 73. Furthermore, based on the pretest and posttest results, an average normalized gain (n-gain) of 0.59 was obtained with a criteria of 'Moderate' effectiveness. 3) Students responses to the created multimedia resulted in an average percentage score of 86.41%, categorized as “Very Good”.
Exploring The Two Decades Of Quality Assurance Advancement In Vocational Education And Training Ramadhan, Muhammad Oka; Rohendi, Dedi; Handayani, Mustika Nuramalia; Permana, Asep Yudi
VISI : Jurnal Ilmiah Pendidik dan Tenaga Kependidikan Pendidikan Non Formal Vol 18 No 2 (2023): VISI : Jurnal Ilmiah Pendidik dan Tenaga Kependidikan Pendidikan Non Formal
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JIV.1802.10

Abstract

Quality assurance in vocational education and training (VET) becoming a concern driven by evolving educational landscapes and the demand for skilled and job-ready individuals. This study presents a comprehensive bibliometric analysis of research on VET quality assurance from the year 2003 to 2022. Data was visualized using VOSviewer and Tableau. This paper aims to provide insights into the quantitative distrubution, citation pattern, geographical dispersion, and emerging topics in this field. Results show an increasing volume of publications on quality assurance in VET. The citation pattern suggests that the depth of exploration and engagement with existing knowledge is not proportionally robust. Russian Federation emerges as a prominent contributor in terms of document output. A lack of international research collaboration among countries, signaling a need for increased global engagement. The identified trends in research can be categorized into three clusters. Cluster 1 focuses on aspects related to the implementation of quality assurance in VET, Cluster 2 delves into methodological approaches in this context, and Cluster 3 explores research contexts associated with the value, benefits, or objectives of implementing quality assurance in VET. This article also offers a reflection on the findings as research that necessitates further exploration. This article can serve as a valuable resource for empirical researchers seeking to examine the temporal evolution of study participants and the shifting research themes pertaining to quality assurance in vocational education.
Hydrogen Production from Aluminum Waste Using the Aluminum-Water Method with Potassium as Activator Amelia, Icha; Rohendi, Dedi; Rachmat, Addy; Syarif, Nirwan; Yulianti, Dwi Hawa; Sya'baniah, Nyimas Febrika; Adhiyanti, Nurmalina; Adelia, Ory; Normah, Normah
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 2 (2024): June 2024
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v9.i2.111

Abstract

Research on hydrogen production from aluminum waste using the aluminum-water method using potassium as an activator has been successfully carried out. This research aims to determine the performance of the potassium activator in hydrogen production with variable water volume and potassium percentage. Hydrogen gas production is carried out using 60 mesh aluminum waste. Optimum conditions were achieved when a mass of 1 gram of aluminum was reacted with an additional volume of water of 1.5 mL, and 7% w/w of the activator mass, with the production of hydrogen gas of 553 mL at a production rate of 69 mL/minute.
Design and Evaluation of an Augmented Reality Application for Learning Workshop Tool Recognition Pramudita, Resa; Rohendi, Dedi; Pawinanto, Roer Eka; Rizqulloh, Muhammad Adli; Fauzan, Mochamad Rizal; Suryadi, Dedy; Kuntadi, Iwa
Jurnal Pendidikan Multimedia (Edsence) Volume 6 No 2 (December 2024)
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/edsence.v6i2.74815

Abstract

This study aims to design and evaluate an Augmented Reality (AR) application for workshop tool recognition, with a focus on enhancing interactivity and student engagement in technical education. Developed using the ADDIE methodology—Analysis, Design, Development, Implementation, and Evaluation—the application integrates Blender for 3D modelling, Unity for development, and Vuforia for AR tracking. Usability was assessed through the System Usability Scale (SUS), involving 48 students from workshop practicum and Occupational Health and Safety (OHS) courses. The application achieved a SUS score of 50.5, classified as Fair according to the classification by Bangor et al. (2009). Key usability aspects were rated positively, including comfort (4.2), ease of use (4.0), functional integration (3.9), stability (4.1), and ease of learning (4.3). While the study highlights the application's potential as an effective learning tool, limitations include a small, institution-specific sample size. Future research should examine its adaptability in broader educational contexts and assess its impact on student learning outcomes. This study supports the integration of AR in technical education, fostering more interactive, efficient, and Industry 4.0-aligned learning environments.
Biodegradable Plastics: Biodegradation Percentage and Potential Microplastic Contamination in Seawater Permana, Muhammad Aditya; Widjajanti, Hary; Rohendi, Dedi
Indonesian Journal of Environmental Management and Sustainability Vol. 7 No. 2 (2023): June
Publisher : Magister Program of Material Science, Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijems.2023.7.2.74-79

Abstract

Increasing plastic production, which causes the problem of plastic garbage polluting the oceans, has increased the use of biodegradable plastics to address the problem. However, it is still debatable how much microplastic contamination it can cause. So, this study aims to determine the proportion of biodegradable plastics in the marine environment, identify the microplastics it produces, and analyze the relationship between the two. Seawater sampling is located in the Bangka Strait. The research was conducted in the Genetics and Biotechnology Laboratory, Department of Biology, Sriwijaya University. The biodegradable plastic test material used was made from a mixture of polyhydroxyalkanoates (PHA) and starch. Biodegradation test method using standard ASTM D6691-17 with respirometry system design. The stage of microplastic identification is carried out through filtration with a 4.75 mm-size filter; density separation using ZnCl2 solution and Whatman No. 1 filter paper; as well as visual observation of microplastics under a microscope. last Pearson Correlation analysis with bootstrap to see the relationship of the percentage of biodegradation with microplastics. The results obtained in this study were the percentage of biodegradable plastic (26.5±1.4%) and positive control kraft paper (33.2±4.2%) for 70 days, which produced 9 microplastic particles from biodegradable plastic with fragment and film types. Correlation analysis concluded that there was no relationship between the percentage of biodegradation and the microplastics produced.
Co-Authors ACHEAMPONG, KENNEDY Addy Rachmat Ade Gafar Abdullah, Ade Gafar Ade Gaffar Abdullah, Ade Gaffar Adelia, Ory Adhiyanti, Nurmalina Agus Setiawan Aldes Lesbani Amelia, Icha Ana Arrumaisha, Nissa Asep Yudi Permana Assaidah, Assaidah Barlin Barlin Bijak Riyandi Ahadito Budhi Setiawan Budi Mulyanti Budiman, Rahmadi Dedy Suryadi Dewi, Claudia Edy Herianto Majlan, Edy Herianto Eka Daryanto, Eka Fakhili Gulo Fatma Fatma Fatmawati Fatmawati Fauzan, Mochamad Patra Bani Fauzan, Mochamad Rizal Felicity, Felicity Firanda, Dera Okta Gigin Gantini Putri Hanapi, Zaliza Hanissa Okitasari Hanissa Okitasari Hary Widjajanti Heri Sutarno Hikmawan, Rizki Indriana Sari Soleha Iskandar, Naufal Nadhif Rabbani Iwa Kuntadi Jefri Jefri Kamin Sumardi Kamin Sumardi Koehler, Thomas Larutama, Wiku Menik Setyowati Mokhamad Syaom Barliana Muhammad Adli Rizqulloh Muhammad Dzulfikar A Muhammad Faizal MUHAMMAD SAID Muhammad Said Muktiarni Mustika Nuramalia Handayani Nirwan Syarif Nirwan Syarif, Nirwan Normah Normah, Normah Nugraha, Agri Triya Oduro-Okyireh, George Oduro-Okyireh, Theodore Permana, Muhammad Aditya Poedji Loekitowati Hariani Pramudita, Resa Purnawan Purnawan Rahmah, Dea Ramadhan, Muhammad Oka Rasim, R Ria Komala Risfidian Mohadi Roer Eka Pawinanto, Roer Eka Salni Saripudin Saripudin Septiadi, Jaka Shandyka, Muhammad Fajar Siregar, Batu Mahadi Sri Haryati Steven Julianto Situmeang Suamrdi, Kamin Subarna, Bambang Sudarsono, Wulandari Sya'baniah, Nyimas Sya'baniah, Nyimas Syabaniah, Nyimas Febrika Syahputra, Rio Aldo Syarif, Nirwan Syarif, Nirwan Syarif, Nirwan Syarif, Nirwan Sya’baniah, Nyimas Febrika Tarmizi Taher Tri Kurnia Dewi Utama, Muhammad Prima Wong, Wai Yulianti, Dwi Yulianti, Dwi Hawa Yulinar Adnan Zainal Fanani