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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 Jurnal Ilmiah Sinus STRING (Satuan Tulisan Riset dan Inovasi Teknologi) 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 Verstek Schrodinger : Jurnal Ilmiah Mahasiswa Pendidikan Fisika Journal of Innovation Research and Knowledge Makara Journal of Science 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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Improving Chemistry Teacher Competence in Compiling Chemistry Learning Modules Oriented to Strengthening Pancasila Student Profiles  Assisted by the GPT Chat Application Sudarmin, Sudarmin; Dewi, Siti Herlina; Susatya, Eko Budi; Harjono, Harjono; Kasmui, Kasmui; Eralita, Norma; Pujiastuti, Rr. S.E; Damayanti, Yosephine Debbie
Journal of Community Empowerment Vol. 4 No. 1 (2024): Journal of Community Empowerment
Publisher : Universitas Negeri Semarang

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

Abstract

The community service activity's background stems from observations, interviews, and data collected during Field Experience Practice and Teacher Professional Education mentoring activities for prospective science and chemistry education teachers. It was identified that candidates need enhancement in developing chemistry teaching modules oriented toward the Pancasila Student Profiles (PSP). The activity aims to address this issue by providing competency training in preparing chemistry teaching modules oriented to Pancasila Student Profiles using the GPT Chat application. The target audience for the activity includes chemistry teachers who are members of MGMP Semarang and Kudus, with approximately 25 participants. The activities include training and mentoring through In-House Training, assistance in creating chemistry teaching modules oriented towards Pancasila Student Profiles, and assessment of the developed teaching modules. Based on the data from the community service activity implementation, the following conclusions can be drawn: (1) training participants have increased their competency in compiling chemistry teaching modules oriented towards strengthening the profile of Pancasila students, (2) chemistry teaching modules oriented towards strengthening the profile of Pancasila students have been produced with good and excellent quality, (3) the response of the target audience from the community service activity indicates a positive impact.
SISTEM PEMESANAN SCORE FUTSAL STADIUM BERBASIS ANDROID Harjono, Harjono; Wahyudi, Dian
IPTEQ Vol 3, No 1 (2021): JASIE
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/jasie.v3i1.5419

Abstract

Olahraga merupakan kegiatan yang sangat berguna untuk meningkatkan daya tahan tubuh seseorang agar tidak mudah sakit.  Saat ini futsal menjadi salah satu olah raga yang banyak diminati oleh masyarakat Indonesia dari berbagai jenis olah raga yang ada. Score Futsal Stadium merupakan sebuah bidang usaha jasa penyewaan lapangan futsal yang berada di Dukuh Waluh Purwokerto Kabupaten Banyumas. Sistem penyewaan lapangan di Score Futsal Stadium masih menggunakan cara manual. Pelanggan harus datang secara langsung untuk memesan lapangan futsal kemudian petugas mencatat identitas pelanggan yang memesan, lapangan yang dipesan, serta waktu berupa tanggal dan jam yang telah ditentukan. Pemesanan secara manual tersebut banyak dikeluhkan pelanggan,oleh karena itu diperlukan sebuah sistem yang dapat mempermudah pelanggan untuk melakukan penyewaan lapangan futsal. Penelitian ini bertujuan membangun sistem pemesanan lapangan Score Futsal Stadium berbasis android. Metode pengembangan sistem dengan menggunakan metode waterfall. Dengan adanya sistem tersebut pelanggan dapat memesan lapangan futsal lewat gadget dari mana saja. Pelanggan tidak perlu datang ke lokasi untuk  melihat jadwal yang tersedia dan melakukan pemesanan.
Perancangan Sistem Informasi Rekam Medis di Klinik Pramesthi Health Care Kalimantan Selatan Harjono, Harjono; Nur Hidayat, Taufiq Wahyu; Utami, Desi Tri
STRING (Satuan Tulisan Riset dan Inovasi Teknologi) Vol 9, No 2 (2024)
Publisher : Universitas Indraprasta PGRI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/string.v9i2.25075

Abstract

SINTESIS, KARAKTERISASI, DAN APLIKASI POLIANILIN SEBAGAI POLIMER KONDUKTIF DALAM TEKNOLOGI MODERN: A REVIEW Rifa'i, Fitra Ahmad; Saputra, Dewa Kahfi; Apriliana, Mahatma; Abidin, Luthfa Abibah Nur; Harjono, Harjono
Indonesian Journal of Pure and Applied Chemistry Vol 8, No 2 (2025)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v8i2.94479

Abstract

Polyaniline (PANI) is a widely studied conductive polymer known for its high electrical conductivity, environmental stability, and ease of synthesis. This review critically summarizes the chemical and electrochemical synthesis routes of PANI, along with its structural and electronic characterization using FTIR, UV"“Vis Spectroscopy, X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), electrical conductivity analysis, and X-ray Photoelectron Spectroscopy (XPS). Furthermore, it highlights the recent advancements in PANI applications across modern technologies, including chemical sensors, biosensors, supercapacitors, lithium-ion batteries, and biomedical devices. By analyzing 68 peer-reviewed articles published within the last decade, this work emphasizes the impact of synthesis parameters and structural modifications on the functional performance of PANI. While PANI offers promising potential, challenges like poor solubility and mechanical limitations remain. This review aims to bridge synthesis, structure, and application relationships and propose future directions for enhancing PANI"™s multifunctionality through nanocomposites and dopant engineering.
Fostering Environmental Knowledge and Literacy with Natural Products Experiment Activity Worksheets Nuswowati, Murbangun; Kusmanto, Harjito; Harjono, Harjono; Nuryanto, Nuryanto; Zahro, Ainu Ilmiatuz; Sharif, Aisyah Mohamad
Jurnal Tadris Kimiya Vol 9 No 1 (2024)
Publisher : Department of Chemistry Education, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/jtk.v9i1.28263

Abstract

This research aims to improve student environmental knowledge and literacy with natural products experiment activity worksheets. The methods used in this research are pre-experimental. The subjects of this research are 15 students from an Islamic high school. The research results show that natural products experiment activity worksheets effectively improve students' learning outcomes. The research results indicate that the pre-test results obtained an average score of 50.8, indicating that students needed help understanding the material before using natural products' experiment activity worksheets. Post-test results showed an average score of 80.5, indicating that students experienced increased learning outcome scores. The average normalized gain score is 0.59, indicating a medium increase in chemistry learning outcomes. The self-assessment questionnaire on environmental literacy, conducted after using the integrated natural products experiment activity worksheets, showed that knowledge had an average score of 4.33 and was rated as excellent, behavior had an average score of 4.31 and was rated as good, and attitude had an average score of 4.37 and was also rated as good. Overall, students' environmental literacy was rated as outstanding, with an average score of 86.74%.
Pengembangan Instrumen Three Tier Diagnostic Test Berbasis Multirepresentasi untuk Menganalisis Miskonsepsi Siswa pada Materi Asam Basa Lestari, Fina Ayu; Priatmoko, Sigit; Susilaningsih, Endang; Harjono, Harjono
Chemistry in Education Vol 12 No 2 (2023): Terbit bulan Oktober 2023
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/chemined.v12i2.69048

Abstract

Penelitian ini bertujuan untuk mengembangkan instrumen three tier diagnostic test berbasis multirepresentasi untuk mengidentifikasi miskonsepsi siswa yang dianalisis menggunakan model Rasch. Penelitian dilakukan menggunakan desain 4D yang dikemukakan oleh Thiagarajan meliputi tahap: define, design, development, dan disseminate, namun dalam penelitian ini hanya sampai pada tahap development. Hasil validasi ahli menunjukkan instrumen tes masuk dalam kategori sangat valid dengan ratarata skor 111,3 dari total skor 120. Hasil analisis reliabilitas menggunakan model Rasch menunjukkan bahwa reliabilitas instrumen belum cukup baik. Hasil analisis miskonsepsi secara klasikal menunjukkan sebanyak 47% siswa paham konsep, 16% siswa mengalami miskonsepsi positif, 12% siswa mengalami miskonsepsi negatif, 15% siswa mengalami miskonsepsi utuh, 4% siswa kurang paham, 1% siswa kurang yakin, dan 5% siswa tidak paham konsep. Siswa secara umum memberikan respon positif terhadap instrumen tes dibuktikan dengan angket. Persentase siswa yang memberikan respon setuju dan sangat setuju yakni sebanyak 45% dan 21% pada uji skala kecil, 63% dan 14% pada uji skala besar, serta 62% dan 14% pada uji implementasi.
INFECTION PROCESS OF Fusarium oxysporum FUNGUS: A CAUSE OF DAMPING-OFF ON Acacia mangium’s SEEDLINGS Widyastuti, Siti Muslimah; Tasik, Susanti; Harjono, Harjono
AGRIVITA Journal of Agricultural Science Vol 35, No 2 (2013)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v35i2.275

Abstract

Fusarium oxysporum is the causal agent of damping-off disease. The fungus attacks seedlings of many plant species, including Acacia mangium. In order to effectively control the disease, detailed information on how the fungus infects seedlings of A. mangium and how the plant responds to the fungal infection is essentially needed. The objectives of this research were to investigate: (1) the infection process of F. oxysporumon seedlings of A. mangium, (2) the defence response of A. mangium seedling to infection by F. oxysporum. The fungal pathogen was identified, followed by performance of pathogenicity test. The infection process was followed by macroscopic observation as well as microscopic observation. The result indicated that fungal spore germination was observed at two-day post inoculation in planta. At four-daypost inoculation, hyphae of F. oxysporum had penetrated the collar root of A. mangium seedling via stomata aperture. In addition, fungal hyphae had grown intercellulary in to the vascular tissue. Correspondingly, hypersensitive response was also detected at the stomata aperture. However, this defence mechanism is not effective in stopping the fungus since F. oxysporum is a necrotropic pathogen. Moreover, accumulation of lignin, but not callose, was observed. Keywords:  Fusarium oxysporum, damping-off, Acacia mangium
Analisis Kesuksesan Aplikasi Presensi Mobile QR Code Universitas Muhammadiyah Purwokerto Menggunakan Model DeLone dan McLean Putri, Eno Sukarno; Harjono, Harjono
Journal of Information System Research (JOSH) Vol 5 No 4 (2024): Juli 2024
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/josh.v5i4.5624

Abstract

Universitas Muhammadiyah Purwokerto (UMP) has adopted QR Code technology for its student attendance application. However, it is important to evaluate the success and performance of the application. This study aims to determine the level of success and factors that drive the success of the UMP Attendance application. The DeLone and McLean (2003) model uses 6 variables as a research evaluation framework. The research method used is quantitative with an associative approach and uses the SEM-PLS model assisted by SmartPLS 4.1.0.6 software in analyzing data. This research was conducted at Muhammadiyah Purwokerto University with 99 respondents who were active undergraduate students of UMP. The results showed that the implementation of the UMP Presence Application was considered quite successful and successful based on the DeLone and McLean (2003) SI success model. Judging from the aspects of system quality and information quality, it is strong enough to encourage use, user satisfaction and net benefits. However, it is necessary to improve the quality of service to users. So that later it will also affect the increase in use and provide benefits for users of the UMP Presence Application itself.
Evaluasi Usability Aplikasi Presensi Mobile UMP Menggunakan Metode User Experience Questionnaire dan Think Aloud Ichsan, Maulana; Wibowo, Feri; Harjono, Harjono; Badharudin, Abid Yanuar
Bulletin of Computer Science Research Vol. 5 No. 5 (2025): August 2025
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/bulletincsr.v5i5.719

Abstract

The implementation of a mobile-based digital attendance system in higher education aims to enhance the efficiency of academic administration and the accuracy of attendance data. However, various challenges remain that impact the quality of user experience, including suboptimal authentication processes, the absence of logout notifications, limited attendance data visualization, and lack of login information storage features. These issues can potentially diminish user convenience and reduce long-term application efficiency. At Universitas Muhammadiyah Purwokerto, a barcode-scanning-based attendance application has been deployed; however, a comprehensive usability and user perception evaluation has not yet been conducted. This study aims to evaluate the usability of the application using a mixed-method approach that combines quantitative and qualitative methods, namely the User Experience Questionnaire (UEQ) and the Think Aloud protocol. The UEQ method is employed to assess user perception across six dimensions: attractiveness, clarity, efficiency, dependability, stimulation, and novelty. In contrast, the Think Aloud method explores users’ real-time verbal feedback and difficulties while interacting with the application. A total of 100 respondents completed the UEQ, and 5 participants took part in the Think Aloud sessions. The results indicate that all UEQ dimensions received positive scores, with clarity scoring the highest (mean = 1.95) and novelty the lowest (mean = 1.35). Findings from the Think Aloud sessions corroborate the UEQ results and reveal previously unidentified areas for improvement. Based on these insights, user-centered design recommendations were developed and translated into a user interface prototype. This study not only provides a comprehensive usability evaluation but also offers direction for the development of a more intuitive and adaptive mobile attendance application that can be adopted by other educational institutions.
RANCANG BANGUN BUCKET PADA MINI EXCAVATOR LISTRIK Sugiyanto, Sugiyanto; Prihadianto, Braam Delfian; Harjono, Harjono; Estiko, Dendi Milnanda; Siswantoro, Soeadgihardo
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1723

Abstract

The prime mover for the majority of heavy equipment units is still dominated by fossil fuel engines. Before starting innovation on expensive large excavator machines, innovation can be started with electric mini excavators which have almost the same working system but have affordable development costs. This research focuses on the bucket which is an indicator of the performance of an excavator unit. The research method used was designing, making, and testing a bucket attached to a mini excavator. The final objective of this research is to design the bucket components that are installed on the electric mini excavator and also determine the volume of the bucket when it is in the flat position (struck) and in the full position (heaped). Based on research that has been carried out, the bucket volume of the mini excavator props when it is in the flat position (struck) is 0.012 m3 or the equivalent of 16.8 kg of sand and when it is in the full position (heaped) it is 0.017 m3 or the equivalent of 23.8 kg of sand.
Co-Authors - Jumaeri Abid Yanuar Badharudin Abidin, Luthfa Abibah Nur Adityo Wahyu Wikanto Agung Purwo Wicaksono Agung Tri Prasetya Ali Arif Setiawan Amalia Choirni Sovawi, Amalia Choirni Ana Mayasari Apriliana, Mahatma Arfa, Nafilatul 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 Fitriyaningsih, Afi Hafsari, Sherli Ameilia Hakim, Mansur Hanuring Ayu Ardhani Putri Hastuti, Vidya Dwi Hastuti, Vidya Dwi Heri Hartanto Herwin Sulistyowati 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 M.Burhanudin Marfina, Apriza Margareta Dian Purnamasari, Margareta Dian Mas’ud, Zainal Alim 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 Poundra, Emmanuelle Pramuktisari, Nindita Prasetyaningtyas, Renata Putri Prasetyaningtyas, Renata Putri Prasetyo, Ridho Prihadianto, Braam Delfian Pujiastuti, Rr. S.E Purbasari, Dita Anggi Purnomo, Muhammad Ikhwannusyifa PURWANTI PURWANTI Purwantiningsih Sugita Putri Maha Dewi Putri, Adhina Choiri Putri, Eno Sukarno Putri, Gustita Arnawati Rakhmawati, Indri 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 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 - Supartono - Supartono, Tono Supartono, Tono Supriyono Supriyono Surojo, Surojo Susanti Tasik Susanto, Aris Tri Susanto, Aris Tri Susatya, Eko Budi Syahrial, Yoppi Syaifullah, Jahid Tri Handayani Tri Prasetya, Agung Ulya Dhina, Karina Octamardia Utami, Desi Tri 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 Zahro, Ainu Ilmiatuz zakki adlhiyati, zakki