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All Journal Jurnal Inovasi Pendidikan Kimia Rekayasa Mesin Jurnal Pseudocode Rekayasa Sipil AGRIVITA, Journal of Agricultural Science Phenomenon : Jurnal Pendidikan MIPA Jurnal Tadris Kimiya Chemistry in Education Indonesian Journal of Chemical Science Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Global Citizen : Jurnal Ilmiah Kajian Pendidikan Kewarganegaraan Indonesian Journal of Pure and Applied Chemistry Jurnal Pengembangan Rekayasa dan Teknologi SEIKO : Journal of Management & Business Jurnal Ilmiah Sinus STRING (Satuan Tulisan Riset dan Inovasi Teknologi) Jurnal Pengabdian Masyarakat Bumi Raflesia Jurnal Abdi Insani JOURNAL OF INFORMATION SYSTEM RESEARCH (JOSH) TIN: TERAPAN INFORMATIKA NUSANTARA Indonesian Community Service and Empowerment Journal (IComSE) Jurnal Kependidikan: Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran dan Pembelajaran Jurnal Pendidikan dan Teknologi Indonesia Abdi Masya Pendagogia: Jurnal Pendidikan Dasar Bulletin of Computer Science Research Jurnal Abdimas Kartika Wijayakusuma Law Development Journal Agroteksos Verstek Schrodinger : Jurnal Ilmiah Mahasiswa Pendidikan Fisika Journal of Innovation Research and Knowledge Makara Journal of Science Eduvest - Journal of Universal Studies Jurnal Pengabdian Masyarakat Bangsa Jurnal Aplikasi Sistem Informasi dan Elektronika Kultura: Jurnal Ilmu Sosial dan Humaniora Jurnal Teknologi dan Rekayasa Alat Berat (JTRAB) Bioma : Jurnal Ilmiah Biologi PESHUM Jurnal Inovasi Pendidikan Kimia Journal of Community Empowerment
Harjono Harjono
Fakultas Kehutanan Universitas Gadjah Mada
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy 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 Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

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Application of Adaptive Camera Zoom Using the Kalaman Filter Algorithm for Low Light Conditions Arrosyid, Hannafi; Pambudi, Elindra Ambar; Harjono, Harjono; Prinandita, Tito
Eduvest - Journal of Universal Studies Vol. 5 No. 11 (2025): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v5i11.52300

Abstract

This study aims to implement the Kalman Filter algorithm in an adaptive zoom camera system to improve image quality in low-light conditions. The main problem faced by conventional cameras is the instability of light intensity, which affects image sharpness and contrast. To that end, experiments were conducted using three different Android devices, namely Infinix Hot Play 11, Oppo Reno 6, and Oppo Reno 11, with shooting distances of 30 cm and 60 cm, respectively. Each device was tested using a Kalman Filter-based camera application and compared with actual measurements using a lux meter. The results of the study show that the Kalman Filter-based adaptive camera system is capable of providing light intensity estimates that are close to the actual values with a deviation of less than 7%. This algorithm works predictively through a process of dynamic estimation and updating of lighting values, enabling it to simultaneously adjust camera exposure and focus settings. This results in sharper, more stable, and more realistic images even in low-light environments
Development of Problem-Based Learning Worksheets Integrated with Think–Pair–Share to Enhance Students’ Critical Thinking Skills on Reaction Rate Topics Ameiliana Nur Azizah; Harjono, Harjono
Jurnal Inovasi Pendidikan Kimia Vol. 19 No. 2 (2025): Jurnal Inovasi Pendidikan Kimia
Publisher : Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jipk.v19i2.9937

Abstract

This study aimed to examine the feasibility, effectiveness, and practicality of a reaction rate worksheet based on Problem-Based Learning (PBL) integrated with the Think–Pair–Share (TPS) strategy to enhance students’ critical thinking skills. This research employed a Research and Development (R&D) approach using the 4-D development model, consisting of the define, design, development, and dissemination stages. The developed worksheet was evaluated in terms of feasibility through expert validation, effectiveness through learning outcomes, and student responses. The feasibility results indicated that the worksheet was rated as very feasible, with material expert validation reaching 89.81% and media expert validation achieving 95.83%. In addition, the readability test yielded a score of 89.70%, which also fell into the very feasible category. The effectiveness of the worksheet was determined through a t-test analysis, showing that the calculated t-value exceeded the t-table value, indicating that the use of the worksheet effectively improved students’ critical thinking skills. Classical learning completeness in the experimental class reached 80.56% (categorized as proper), while the control class achieved 44.44% (categorized as quite proper). Furthermore, the critical thinking score of the experimental class reached 82.43% (very critical), compared to 72.09% (critical) in the control class. Observational results also revealed that students in the experimental class demonstrated higher critical thinking abilities than those in the control class. Student responses to the worksheet were highly positive, with an average score of 85.81%, categorized as very good. Overall, the findings indicate that the PBL-based worksheet integrated with Think–Pair–Share is feasible, effective, and well-received as an instructional material for training students’ critical thinking skills.
Development of Ethno-Vlog Integrated E-LKPD on Chemical Reaction Equations to Enhance Students’ Scientific Literacy and Creative Thinking Skills Sanam, Putra Reinho Rosario; Tri Prasetya, Agung; Harjono, Harjono
Jurnal Inovasi Pendidikan Kimia Vol. 19 No. 2 (2025): Jurnal Inovasi Pendidikan Kimia
Publisher : Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jipk.v19i2.15884

Abstract

This study aimed to develop and evaluate an Integrated Ethno-Vlog E-LKPD (Electronic Student Worksheet) to enhance students’ scientific literacy and creative thinking skills in chemistry learning. The research used a Research and Development (R&D) approach, employing a modified 3D model of Thiagarajan’s 4D development, consisting of the definition, design, and development stages. The study involved 36 students from Grades X and XI at SMAK St. Gabriel Noemuti as participants. Data collection techniques included questionnaires, interviews, classroom observations, expert validations of content and media, and pretest-posttest assessments of scientific literacy and creative thinking. Quantitative analysis was conducted using pretest, posttest, and N-Gain scores to measure learning outcomes. The results showed that the average scientific literacy score was 81.43, with an N-Gain of 0.63, categorized as moderate, while the average creative thinking score was 81%, indicating a notable improvement. The integration of local wisdom through Ethno-Vlog videos in the E-LKPD helped students connect chemical concepts, particularly chemical reaction equations, with real-life phenomena in their surrounding environment. These findings suggest that the Integrated Ethno-Vlog E-LKPD is effective in supporting students’ understanding, fostering scientific literacy, and enhancing creative thinking skills, providing a promising approach for contextual and culturally relevant science learning
PEMBERDAYAAN EKONOMI BERBASIS DIGITAL DI KAMPUNG SRI RAHAYU BINAAN LEMBAGA PUSAT STUDI DAKWAH KOMUNITAS (PSDK) UNIVERSITAS MUHAMMADIYAH PURWOKERTO Wibowo, Feri; Wicaksono, Agung Purwo; Muktiadi, Ridho; Badharudin, Abid Yanuar; Aji, Mukhlis Prasetyo; Hamka, Muhammad; Fitriani, Maulida Ayu; Marhendi, Teguh; Wijaya, Ermadi Satriya; Harjono, Harjono; Fauzan, Achmad
Jurnal Pengabdian Masyarakat Bumi Rafflesia Vol. 5 No. 2 (2022): Jurnal Pengabdian Kepada Masyarakat Bumi Raflesia
Publisher : Universitas Muhammadiyah Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Wilayah Kampung Sri Rahayu memiliki stigma negatif yang melekat pada mereka karena wilayah ini identik dengan warganya yang berprofesi sebagai pengemis, pengamen, dan para gelandangan. Mulai tahun 2019 bulan November diinisiasi untuk dilakukan proses pembinanan di bawah Pusat Studi Dakwah Komunitas (PSDK) Universitas Muhammadiyah Purwokerto. Ada beberapa kegiatan yang sudah berjalan untuk memberikan pembinaan ter hadap warga binaan, seperti pengajian rutin dengan tema akidah, akhlaq, dan muammalah. Kegiatan produktif seperti menjahit, belajar menernak ikan lele juga sudah dilakukan secara rutin. Selain itu juga diadakan kegiatan – kegiatan yang menyasar ke anak-anak kecil dan remaja seperti kegiatan belajar mengaji Al-Qur’an atau TPQ. Tujuan dari program pengembangan desa mitra ini adalah memberikan pelatihan-pelatihan komputer secara intensif dengan materi yang disusun secara bertahap den gan materi utama adalah pelatihan pengenalan komputer dan aplikasi dasar komputer, pelatihan desain grafis, dan pelatihan internet marketing. Selain itu juga akan dibangun sebuah sistem website sebagai profil dari Kampung Sri Rahayu-PSDK UMP, sekaligus sebagai wadah untuk mengenalkan dan memasarkan produk-produk yang meraka hasilkan. Metode pelaksanaan pada program ini mengguanakan 5 tahapan kegiatan yaitu tahap analisis kebutuhan mitra, penerapan rangkaian pelatihan, pembuatan media promosi dan profil, seminar motivasi digital marketing, dan terakhir evaluasi. Pelaksanaan kegiatan ini dapat berjalan dengan baik dan telah menghasilkan beberapa media digital yang digunakan sebagai media promosi produk PSDK UMP Kampung Sri Rahayu seperti akun di media Instagram, Youtube, dan Shopee. Selain itu juga telah terbangun dua buah website yaitu website profil PSDK UMP Kampung Sri Rahayu, dan website etalase yang digunakan untuk memajang semua produk yang dihasilkan oleh warga binaan PSDK UMP. Kata Kunci: Pemberdayaan, Ekonomi Digital, Komunitas
Co-Authors - Jumaeri Abid Yanuar Badharudin Abidin, Luthfa Abibah Nur Achmad Fauzan, Achmad Adityo Wahyu Wikanto Aeni, Holidatul Agung Purwo Wicaksono Agung Tri Prasetya Ali Arif Setiawan Amalia Choirni Sovawi, Amalia Choirni Ameiliana Nur Azizah Ana Mayasari Apriliana, Mahatma Arfa, Nafilatul Arrosyid, Hannafi Artani, Amalina Atikah Indriastuti Ayu Cendana, Chinta Celi Cahyaningrum, Intan Cepi Kurniawan Damayanti, Yosephine Debbie Dani, Jeratallah Aram Dani Desi Tri Utami, Desi Tri Dewi, Siti Herlina Dian Wahyudi Drestajumna, Putu Dwi, Itok Edy Cahyono Eka Purwaningsih Endang Susilaningsih Ermadi Satriya Wijaya, Ermadi Satriya Estiko, Dendi Milnanda Fardhila, Widityana Ayu Farhanah, Atikah Alya Feliana, Kiki Feliana, Kiki Feri Wibowo Fitriana, Syalsa Bella Fitriani, Maulida Ayu Fitriyaningsih, Afi Hafsari, Sherli Ameilia Hakim, Mansur Hakim, Yusufi Ahmad Fathul Hanuring Ayu Ardhani Putri Hastuti, Vidya Dwi Hastuti, Vidya Dwi Heri Hartanto Herwin Sulistyowati, SH,MH Holifah, Siti Holifah, Siti Ichsan, Maulana Irawati Irawati Irsal Revanza ITOK DWI KURNIAWAN Izzania, Rahma Annisa Kadek Evinka Yuristin, Kadek Evinka Kasmui -, Kasmui Khavilla, Vidya Putri Kusmanto, Harjito Kusoro Siadi Lestari, Fina Ayu Lestari, Melinda Dwi Lestari, Melinda Dwi Lestari, Rika Ayu Lin, Sarlin M.Burhanudin Marfina, Apriza Margareta Dian Purnamasari, Margareta Dian Mas’ud, Zainal Alim Muhammad Hamka Mukhlis Prasetyo Aji Murbangun Nuswowati Nanik Wijayati Ningsih, Nuning Melia Norma Eralita Nufus, Khayatun Nufus, Khayatun Nuning Melianingsih, Nuning Nur Hidayat, Taufiq Wahyu Nur Wijayanti, Christina Nurhayati Nurhayati Nurul Arifin Nuryanto Nuryanto Pambayun, Osama Wara pambudi, elindra ambar Poundra, Emmanuelle Pramuktisari, Nindita Prasetyaningtyas, Renata Putri Prasetyaningtyas, Renata Putri Prasetyo, Ridho Prihadianto, Braam Delfian Prinandita, Tito Pujiastuti, Rr. S.E Purbasari, Dita Anggi Purnomo, Muhammad Ikhwannusyifa PURWANTI PURWANTI Purwantiningsih Sugita Putri Maha Dewi, S.H., M.H Putri, Adhina Choiri Putri, Eno Sukarno Putri, Gustita Arnawati Rakhmawati, Indri Ridho Muktiadi Rifa'i, Fitra Ahmad Rihmahwati, Melly Rini, Luluk Takari Sarjana Riyanto, Ari Fajar Rosalina Ananta, Rosalina S Mursiti Safrudin Yudowibowo Saiful Fatihin, Saiful Samsi Samsi Samuel Budi Wardana Kusuma, Samuel Budi Wardana Samuel Budi Wardhana Kusuma Sanam, Putra Reinho Rosario Saputra, Dewa Kahfi Sari, Hanifah Kartika Savitri, Retno Wahyu Sembiring, Rinawati Septiningsih, Ismawati Setyaningrum, Rizka Indriani Setyawan Bekti Wibowo Sharif, Aisyah Mohamad Sholikhah, Nining Siami, Fitri Sigit Priatmoko Siti Istiningsih, Siti SITI MUSLIMAH WIDYASTUTI Soeadgihardo Siswantoro Soehartono Soehartono Sonya, Mellyaning Oktaviani Sonya Kirana Sari Sri Haryani Sri Hutami Sri Nurhayati Sri Puji Lestari Sri Susilogati Sumarti Sri Wahyuni Sri Wahyuningsih Yulianti, Sri Wahyuningsih SRI WARDANI Sudarmin Sudarmin Sudarmin Sudarmin Sugiyanto - Sukarne, Sukarne Supartono - Supartono, Tono Supartono, Tono Supriyono Supriyono Surojo, Surojo Susanti Tasik Susanto, Aris Tri Susanto, Aris Tri Susatya, Eko Budi Sutaryono, Yusuf Akhyar Syahrial, Yoppi Syaifullah, Jahid Teguh Marhendi Tri Handayani Tri Prasetya, Agung Ulya Dhina, Karina Octamardia Utami, Desi Tri Vebera Maslami Violiandari, Aloysia Gesya Widada, Reza Ananda Widayani, Anis Widayani, Anis Widianto, Farhan Winta, Khoirin Woro Sumarni Yitno Puguh Martomo Yoga Budi Bhakti Yulianingsih, Prita Yulis Widhiastuti Yusman Sutoyo, Misran Misran, Zahro, Ainu Ilmiatuz zakki adlhiyati, zakki