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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Tibuana : Journal of Applied Industrial Engineering Communicology: Jurnal Ilmu Komunikasi Bali Medika Jurnal Journal of Empowerment Community Jurnal Teknik Sipil-Arsitektur NUSRA: Jurnal Penelitian dan Ilmu Pendidikan Journal of Endocrinology, Tropical Medicine, and Infectious Disease (JETROMI) Chemical Engineering Journal Storage (CEJS) re-JIEM (Research Journal of Islamic Education Management) UPMI Proceeding Series Journal Nusantara Journal of Multidisciplinary Science International Journal of Applied Educational Research (IJAER) Jurnal Pengabdian Masyarakat dan Riset Pendidikan JFARM (Jurnal Farmasi) MARAS : Jurnal Penelitian Multidisplin BIMA : Journal of Business and Innovation Management Journal of Applied Transintegration Paradigm Jurnal Kompetensi Ilmu Sosial Indonesian Journal of Education Jurnal Pengabdian Cendekia
Darmadi
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Implementation of Demonstration Learning Methods in Increasing the Activity of Classroom Students VI SD Negeri 01 Rantau Alai Rini Apriyani; Aziz Septiatin; Angga Nuraufa Zamzami; Nova Tri Evriani; Darmadi; Hendri Budi Satrio
Jurnal Pengabdian Cendekia Vol. 1 No. 1 (2025): Edisi Februari
Publisher : PT Pustaka Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71417/jpc.v1i1.6

Abstract

This community service program is in the form of education at SD Negeri 01 Rantau Alai, Kilip Pulau Sila Village, Rantau Alai District, Ogan Ilir Regency, South Sumatra. Learning is a special aspect of education that includes the cognitive, affective, and psychomotor domains. This research is more focused on the learning process of Class VI students, totaling 11 people, by using the demonstration learning method in the learning process. This research aims to increase student activity in the classroom, make it easier for students to understand the material being studied, and make learning more effective and efficient. The results of the research obtained by the researcher are that first, students become active during the learning process, second, students become easier to understand the material being studied by the learning objectives, and third, learning becomes more effective and efficient.
Pengaruh Experiental Marketing dan Store Atmosphere Terhadap Loyalitas Pelanggan di Rumah Makan Bebek Cak Anton Jombang Darmadi; Ningsih, Lilis Sugi Rahayu
BIMA : Journal of Business and Innovation Management Vol. 5 No. 2 (2023): Februari
Publisher : Prodi Manajemen Fakultas Ekonomi Universitas Hasyim Asy'ari Tebuireng Jombang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33752/bima.v5i2.5663

Abstract

Penelitan ini bertujuan untuk mengetahui pengaruh Experiental Marketing dan Stor Atmosphere terhadap loyalitas pelanggan pada Rumah Makan Bebek Cak Anton Jombang. Metode yang digunakan pada penelitian ini adalah metode penelitian kuantitatif dan Jumlah sampel yang digunakan sebanyak 35 konsumen dengan menggunakan teknik pengambilan nonprobility sampling. Teknik pengumpulan data menggunakan kuesioner. Uji hipotesis menggunakan Uji t, Uji F, dan uji R2. Hasil penelitian ini menunjukan bahwa (1) Experiental Marketing berpengaruh secara parsial terhadap Loyaliotas Pelanggan di Rumah Makan Bebek Cak Anton Jombang dengan nilai thitung 2.623 > ttabel 1.693 (2) Store Atmosphere berpengaruh secara parsial terhadap Loyaliotas Pelanggan di Rumah Makan Bebek Cak Anton Jombang dengan nilai thitung 2.990 > ttabel 1.693 (3) Experiental Marketing dan Store Atmosphere berpengaruh secara silmutan terhadap loyalitas pelanggan di Rumah Makan Bebek Cak Anton Jombang dengan nilai fhitung 10.043 > ftabel 2.91.
Profile of Students' Visual Thinking in Understanding and Applying Derivative Concepts Darmadi; Nartini; Soleh, Dwi Rohman
International Journal of Applied Educational Research (IJAER) Vol. 1 No. 2 (2023): December 2023
Publisher : MultiTech Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59890/ijaer.v1i2.1013

Abstract

The aim of this research is to obtain students' visual thinking profiles in understanding and applying derivative concepts. Qualitative research methods are used with the steps determining the subject, developing questions, collecting data, interpreting, presenting, reducing, categorizing, coding, and triangulating data, analysing data, and drawing conclusions. The subjects of this research were students of the mathematics education study program of PGRI Madiun University. At first, students understand the concept of derivatives without using visual thinking skills. Students understand the concept of derivative as a demotion. After learning, students understand the concept of derivatives with images as visualization. Students apply the concept of guidance without using visual thinking. After learning, students can apply derivative concepts by using images as visualization. Students understand that they must apply derivative concepts and explain with pictures or graphs. Students plan by analysing and then using function graphs to explain it. Students carry out plans by calculating analytically and completing explanations using pictures or graphs. Students check again by paying attention to the answers from friends beside them and discussions with the lecturer.
Development of Video Tutorials as a Guide to Guided Inquiry-Based Practicum on Senior High School Biology Material Natalina, Mariani; Hidayah, Hikmah; Darmadi
Jurnal Penelitian Pendidikan IPA Vol 10 No 9 (2024): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i9.5925

Abstract

This study aims to produce guided inquiry-based video tutorials as practicum instructions on quality plant tissue structure and function material. The type of research conducted is Research and Development (R&D) using the ADDIE model (Analyze, Design, Development, Implementation and Evaluation) which is limited to the third stage. The instruments used in this study were validation sheets and response questionnaires. This research was conducted at SMAN 8 Pekanbaru. The assessment was carried out in the form of filling out validation sheets by two experts, namely a media expert and a biology material expert as well as two senior high school biology teachers. The video tutorial validation results obtained an average score of 3.66 with a very valid category. The video tutorial was tested on eighth semester biology education students in the limited trial phase I with a score of 3.69 with a very good category. Then the video tutorial was tested in a limited trial phase II with grade XI students with a score of 3.69 with a very good category. Based on the average score obtained from the validation and trial results, it can be concluded that the guided inquiry-based practicum video tutorial has very good quality with a score of 3.68.
Pengembangan E-LKPD Berbasis Poblem Based Learning (PBL) Terintegrasi Berpikir Kritis Pada Materi Sistem Ekskresi Manusia Kelas XI SMA Gultom, Putri Rohani; Wan Syafi’i; Darmadi
NUSRA : Jurnal Penelitian dan Ilmu Pendidikan Vol. 6 No. 4 (2025): NUSRA: Jurnal Penelitian dan Ilmu Pendidikan, November 2025
Publisher : LPPM Institut Pendidikan Nusantara Global

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/nusra.v6i4.3997

Abstract

This study aims to develop an Electronic Student Worksheet (E-LKPD) based on Problem-Based Learning (PBL) integrated with critical thinking skills on the topic of the human excretory system for Grade XI senior high school students. The research employed a Research and Development (R&D) approach by adapting the ADDIE model (Analyze, Design, Development, Implementation, and Evaluation). This study was conducted up to the development stage. The trial subjects included two expert validators, 10 biology education students, two biology teachers, and 30 Grade XI students from SMAN 2 Pekanbaru. The instruments used consisted of a validation sheet, student response questionnaire (students and prospective teachers), and teacher response questionnaire. The validation results showed that the E-LKPD was categorized as "very valid", with an average score of 3.51. The first limited trial (with university students) indicated that the E-LKPD was "very good", with an average score of 3.59. The second limited trial (with teachers and students) yielded average scores of 3.80 and 3.79, respectively, indicating "very good" responses. The practicality test resulted in an average score of 3.72, categorized as "very good/practical", while the overall quality assessment yielded a score of 3.61, also classified as "very good". The development of this E-LKPD demonstrates that the integration of the PBL model with critical thinking indicators effectively facilitates students in identifying problems, analyzing information, and constructing solutions based on the concept of the human excretory system. Therefore, the developed E-LKPD is deemed suitable for use as a supplementary teaching material in biology learning that emphasizes the enhancement of critical thinking skills.
PERENCANAAN DRAINASE UNDERPASS BOJONGGEDE KABUPATEN BOGOR Imamudin, Fajar; Darmadi
JURNAL TEKNIK SIPIL-ARSITEKTUR Vol. 24 No. 2 (2025): EDISI BULAN NOVEMBER
Publisher : FTSP Universitas Jayabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54564/jtsa.v24i2.239

Abstract

Pembangunan underpass pada perlintasan sebidang kereta api dengan jalan raya ditujukan untuk meningkatan keselamatan serta kelancaran lalu lintas. Studi kasus penelitian ini mengambil lokasi pada perlintasan sebidang JPL 26 Kecamatan Bojonggede, Kabupaten Bogor yang direncanakan akan ditingkatkan menjadi underpass. Salah satu aspek penting dalam pembangunan underpass adalah perencanaan sistem drainase yang baik, mengingat underpass rentan terhadap genangan air akibat limpasan hujan. Penelitian ini bertujuan untuk merencanakan sistem drainase yang meliputi perhitungan debit banjir rencana, dimensi saluran, kapasitas kolam retensi dan jumlah pompa air yang diperlukan dalam pengoperasian Underpass Bojonggede. Metode yang digunakan adalah metode deskriptif kuantitatif dengan pendekatan analisis hidrologi dan analisis hidrolika. Teknik pengumpulan data dilakukan melalui studi literartur dan observasi lapangan. Hasil penelitian menunjukan bahwa curah hujan harian maksimum sebesar 212,591 mm dan total debit bajir rencana sebesar 0,2652 m3/det. Dimensi saluran U-ditch pada sisi utara dan selatan 30x30x1200 cm, sedangakan saluran U-ditch box culvert 40x50x1200 cm. Perencanaan kolam retensi mampu menampung curah hujan konstan selama 25 menit dengan debit masuk sebesar 0,2652 m3/det, sehingga diperlukan kolam retensi berukuran 1800x680x330 cm dengan volume tampungan maksimum 403,92 m3. Kebutuhan pompa air direncanakan sebanyak 2 unit beroperasi dan 1 unit cadangan yang dapat digunakan secara bergantian.
EVALUASI DAYA DUKUNG PERKERASAN RUNWAY BANDARA BUDIARTO Samosir, Felix Anggi; Darmadi
JURNAL TEKNIK SIPIL-ARSITEKTUR Vol. 24 No. 2 (2025): EDISI BULAN NOVEMBER
Publisher : FTSP Universitas Jayabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54564/jtsa.v24i2.240

Abstract

Perkerasan landas pacu merupakan infrastruktur transportasi yang paling penting, karena perannya dalam memastikan operasional pesawat yang aman di suatu bandar udara. Pada perkembanganya dalam metode analisis perkerasan landas pacu, Pada April 2022, Federal Aviation Administration (FAA) merilis pembaruan Metode standar pelaporan kekuatan Perkerasan Bandara – PCR. Dokumen mewajibkan penggunaan sistem Aircraft Classification Rating/Pavement Classification Rating (ACR/PCR). Sistem ACR/PCR sepenuhnya berlaku pada November 2024 dan menggantikan sistem sebelumnya, yaitu Aircraft Classification Number/Pavement Classification Number (ACN/PCN). Tujuan dari penelitian ini adalah evaluasi perkerasan landas pacu Bandar Udara Budiarto guna memastikan operasi fasilitas bandara yang tepat. Selain analisis metode ACR/PCR dengan menggunakan program komputer FAARFIELD 2.1. dilakukan juga analisis manual dengan metode grafis yang memiliki perkerasan lentur. Hasil yang diperoleh pada penelitian ini adalah nilai ACN, PCN, ACR, dan PCR. Pada studi kasus bandara Budiarto yang digunakan sebagai penelitian yaitu runway azimuth 12-30 memerlukan beberapa data yaitu, data perkerasan bandar udara, data air traffic movement dan data hasil pengujian alat HWD. Hasil analisis, diketahui untuk nilai ACN adalah 51 dan PCN adalah PCN 52 F/C/X/T sedangkan dengan analisis software diperoleh nilai ACR adalah 461,6 dan kekuatan perkerasan yang ada diperoleh hasil PCR 440 F / C / X / T dengan nilai CDF lebih kecil dari 1 menunjukkan runway masih mampu untuk menerima beban pesawat yang beroperasi.
Tinjauan Komprehensif Katalis dan Mekanisme Hidrodeoksigenasi dalam Konversi Minyak Sawit Menjadi Green diesel Yani, Firda Tirta; Husni Husin; Darmadi
Chemical Engineering Journal Storage (CEJS) Vol. 5 No. 05 (2025): Chemical Engineering Journal Storage (CEJS)-October 2025
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v5i05.25300

Abstract

Produksi green diesel melalui proses hidrodeoksigenasi (HDO) minyak sawit merupakan salah satu pendekatan paling menjanjikan dalam pengembangan bahan bakar terbarukan dengan sifat setara diesel fosil. Artikel review ini menguraikan perkembangan terkini terkait mekanisme reaksi HDO yang masing-masing memiliki peran penting dalam menentukan selektivitas terhadap fraksi hidrokarbon C15–C18. Berbagai jenis katalis yang digunakan dalam reaksi HDO mulai dari logam transisi seperti Ni, Co, dan Mo hingga logam mulia seperti Pt dan Pd dibahas berdasarkan aktivitas, stabilitas, dan kecenderungannya dalam mengarahkan jalur reaksi. Selain itu, artikel ini meninjau pengaruh sifat penyangga seperti keasaman, stabilitas termal, dan ketahanannya terhadap pembentukan kokas, yang berperan besar dalam menjaga performa katalis selama reaksi berlangsung. Berbagai metode sintesis heterogen, termasuk impregnasi, sol–gel, hidrotermal, dan deposisi presipitasi, dianalisis untuk menunjukkan bagaimana teknik preparasi memengaruhi dispersi logam, ukuran partikel, interaksi logam–penyangga, dan sifat fisikokimia lainnya. Secara keseluruhan, kajian ini menegaskan bahwa keberhasilan HDO minyak sawit dalam menghasilkan green diesel sangat ditentukan oleh sinergi antara pemilihan katalis, karakter penyangga, serta metode sintesis yang digunakan. Pemahaman mendalam terhadap faktor-faktor tersebut menjadi kunci dalam pengembangan katalis yang lebih efisien, selektif, dan stabil untuk produksi green diesel berkelanjutan.
Co-Authors Ali, Mohammad Haidar Amrun Rosyid Angga Nuraufa Zamzami Aprillitzavivayarti Arianto Asiska Permata Dewi Aziz Septiatin Bella Dwi Safera Budiono Budiono Bulqaini, Alul Azmi Choirun Nisful Laili Daratul Aini Gaho Dwi Rohman Soleh, Dwi Rohman Eli Yusrita Elisabeth, Damarsari Ratnasahara Emalia Selviana Putri, Ava Ernova Viorely Purba Fadhlullah, Taufiq Fatma Fauzi, Nurliza Arkana Ferryan Sofyan Ginting, Elianora Bergita Gultom, Putri Rohani Haryati, Nanik Hendri Budi Satrio Hidayah, Hikmah Husni Husin Hutagalung, Sunna Vyatra Imamudin, Fajar Imelda Rey ISKANDAR Ismaningsih Kaban, Sri Melinda Layli Maydawati Lik Anah Lilis Sugi Rahayu Ningsih Maissy Febiana Mariani Natalina Muhammad Farid Muhammad Ramadhan Muhammad Tresno Nartini Nartini, Nartini Nazar, M. Ningsih, Lilis Sugi Rahayu Nova Tri Evriani Nur Halifah R Nural Hasbi Nursal pazila, rezka Putri Sindy Wibisono Reza Ali Maksum Reza Kusuma Setyansah Riani Purwaningsih Rifai, Muh. Rini Apriyani Robin Pratama Roby Andriansyah Rositasari, Fitri Sadikin Samosir, Felix Anggi Santoso*, Rohmad Prio Sanusi Sanusi Sari, Indah Apriliana Septi W, Reynaldi Sianturi, Livia Anastasia Siska Mayasari Lubis Sri Yulianti Suyono, Joko Syahira, Juniva Syahrin, Muhammad Alpino Tias Nur Aini Tri Endarwati Tri Nurvita Sari Wahyuddin Wan Syafi’i Yani, Firda Tirta Yusrita, Eli ZULFAH