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PENERAPAN MODEL GUIDED CONTEXT-AND PROBLEM-BASED LEARNING UNTUK MENINGKATKAN PEMAHAMAN KONSEP PADA MATERI GELOMBANG BUNYI I Made Hermanto; Nurhayati; Indrawati Tahir; Muhammad Yunus
JPF (Jurnal Pendidikan Fisika) Universitas Islam Negeri Alauddin Makassar Vol 11 No 1 (2023)
Publisher : Pendidikan Fisika UIN Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jpf.v11i1.36233

Abstract

This study aims to improve students' understanding of sound wave material through the application of guided context- and problem-based learning (GC-PBL) models. The method used was a quasi-experimental design with a non-randomized control group pretest-posttest design. The sample in this study was class XI MIPA, which consisted of two classes, namely class XI MIPA 3 as the GC-PBL class and class XI MIPA 2 as class C-PBL. The instrument used is a comprehension ability test. The results obtained showed that students in the GC-PBL class experienced an increase in the high category, while students in the C-PBL class experienced an increase in the medium category. Differences in the increase in understanding ability were then tested statistically and showed that there were significant differences. The implications and recommendations in this study are discussed.
Penentuan Distribusi Suhu pada Pelat Logam dengan Cara Menyelesaikan Persamaan Diferensial Eliptik Menggunakan Microsoft Excel Lukman Samatowa; Septiana Kurniasari; Muhammad Yunus; Relita Damopolii
JPF (Jurnal Pendidikan Fisika) Universitas Islam Negeri Alauddin Makassar Vol 11 No 1 (2023)
Publisher : Pendidikan Fisika UIN Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jpf.v11i1.36382

Abstract

This study aims to visualize the temperature distribution on metal plates by solving elliptic differential equations using the help of the Microsoft Excel program. Many physics problems have limited analytic solutions so a numerical solution is needed. One of them is about the temperature distribution on a homogeneous metal plate in a steady-state conditionThe equation of heat flow in steady-state conditions is an elliptic partial differential equation (PDE). By solving this equation, we will have a numerical model of the plate that can be a mesh with a certain temperature point. Each point has been known to calculate the temperature value. The temperature value influenced. The Temperature value influenced borders on the plate and the presence of heat generation. The edge of the plate can be a constant temperature, a convection zone with the outside air, or an isolated edge. This model is then processed using Microsoft Excel with the iteration calculation until the temperature distribution value is obtained. The results obtained a graphical visualization of temperature distribution on the plate.
Development of E-Books Based on 4C Skills Through a Differentiation Approach to Science Learning Nurhayati Nurhayati; Tirtawaty Abdjul; I Made Hermanto; Muhammad Yunus
Jurnal Penelitian Pendidikan IPA Vol 11 No 1 (2025): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i1.9782

Abstract

E-books are essential in developing 4C skills and differentiated learning because they offer accessibility and flexibility that support students' diverse learning styles. In addition, they allow customization of teaching materials according to students' needs, which increases motivation and learning independence. This research aims to develop an e-book based on 4C skills through a differentiated approach to valid, practical science learning. This study falls within the development research category that uses the ADDIE model. With an average validation score of 3.73, this e-book falls into the “very valid” category. In practical terms, this media is easy for teachers and students to use, fits the learning plan, and shows a learning implementation rate of 90%. Student responses were very good, with an average of 89.79% for four evaluation indicators, showing great benefits and a high level of satisfaction in the learning process. Overall, the e-book based on 4C developed through a differentiated approach to science learning can be categorized as valid and practical because it can increase student involvement in learning. In addition, interactive features in e-books support communication and collaboration between students, allowing them to share ideas and opinions. E-books also enable teachers to adapt material to individual needs so each student can learn at the pace and style they desire.
The Effect of Tube Current Variations on Cranium Radiograph Images Using the MATLAB Program Nurul Auliyaa Hasbi; Asmiati Amir; Muhammad Yunus; Nurul Jannah Jamal; Nurbeti Salam; Muh. Rusli
Jurnal Penelitian Pendidikan IPA Vol 11 No 11 (2025): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i11.13042

Abstract

Matrix Laboratory (MATLAB) is a software based on matrices, which is easy to use for solving various mathematical and computing problems. This study aimed to determine how variations in tube current (mA) affect the radiographic image of the cranium using the MATLAB program and to assess the program's quantification of this effect. The sample in this study consisted of 3 volunteers who performed AP projection cranial radiography examinations with varying tube current at Pelamonia TK. II Hospital, Makassar. Each sample had the same treatment in patient preparation, examination position, examination projection, and the same exposure factor value, which differed only in the use of tube current values, ​​where the volunteer 1 with 200 mA, the volunteer 2 with 250 mA and volunteer 3 with 320 mA. Measurement of the quality of the AP projection cranium image with tube current of 200 mA, the percentage was 96.11%. At 250 mA, the percentage was 95.00%; at 320 mA, it dropped to 92.78%. It was determined that the optimal tube current variation was 200 mA with the highest percentage in measuring the image quality (density, contrast, sharpness, and detail) of the AP projection Cranium against variations in tube current is almost perfect.
Microcontroller-Based DHT11 Sensor for Temperature and Humidity Measurement Muhammad Yunus
Dewantara Journal of Technology Vol. 6 No. 1 (2025)
Publisher : Akademi Teknologi Industri Dewantara Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59563/djtech.v6i1.327

Abstract

Technological developments for temperature and humidity measurement systems have experienced significant progress through the use of microcontroller-based sensors. This research aims to measure temperature and humidity using a microcontroller-based sensor. The sensor used is a DHT11 connected to a NodeMCU ESP8266 microcontroller as a data processing centre. The data collection process was carried out from 09:00 to 17:00 every 2-hour interval. Data from temperature and humidity measurements were at 09:00, the temperature was 30°C with a humidity of 73%, then when the temperature increased at 11:00 (32°C) and reached its peak at 13:00 (33°C), the humidity actually decreased to 67% and 62%. Furthermore, when the temperature began to decrease at 15:00 (31°C) and 17:00 (29°C), the humidity increased again to 70% and 75%. The higher the air temperature, the relative humidity tends to decrease, and vice versa. Microcontroller-based DHT11 sensor is an effective solution in environmental monitoring systems that require practicality and efficiency.
Real-Time and Accurate pH Sensor Based on Internet of Things (IoT) Robin Ikano; Dewa Gede Eka Setiawan; Muhammad Yunus; Meilan Demulawa; Irsan Rahman
Dewantara Journal of Technology Vol. 5 No. 1 (2024)
Publisher : Akademi Teknologi Industri Dewantara Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59563/djtech.v5i1.312

Abstract

One important parameter that needs to be considered in water quality is the acidity level (pH) in the water. This study aims to design and determine real-time and accurate pH sensor based on internet of thing (IoT). This system design uses an ESP32 microcontroller and The PH-4502C pH Meter Module sensor. The ESP32 can be connected to the IoT-based Blynk platform, allowing pH data to be monitored in real time via a smartphone. Testing of the IoT-based pH sensor was conducted to evaluate the system's real-time operation under varying distances. Meanwhile, the pH sensor's accuracy was determined by comparing its output with a digital pH meter using buffer solutions at different pH levels. The test results show that the time value required in each range is always constant, namely 1 s. This proves that IoT-based monitoring does not affect the range. Meanwhile, measurement of pH level was the average error value is 3.49%, and the sensor accuracy is 96.51%. These results indicate a low error rate, resulting in high accuracy. The sensor error value of 3.49% is lower than the specified error tolerance limit of <5%. This proves that the pH sensor, with an accuracy of 96.51%, is suitable and reliable for measuring pH in solutions.
IMPLEMENTASI PROGRAM KAMPUS MENGAJAR ANGKATAN 3 SEBAGAI WUJUD KONTRIBUSI BELAJAR SAMBIL BERDAMPAK Septiana Kurniasari; Muhammad Yunus; Nur Afni Hunggaita; Sugianti Sugianti; Ardhieat Pramesti Regita E. Ali; Abdurahman Ismail; Talita Dyas Aprilia; Mohammad Arif Alfan Habibi
Jurnal Pengabdian Pendidikan Masyarakat (JPPM) Vol 4 No 1 (2023): Jurnal Pengabdian Pendidikan Masyarakat (JPPM)
Publisher : LPPM UNIVERSITAS MUHAMMADIYAH MUARA BUNGO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52060/jppm.v4i1.1061

Abstract

Program Kampus Mengajar merupakan salah satu program Merdeka Belajar – Kampus Merdeka (MBKM) yang bertujuan untuk membantu sekolah dasar maupun menengah yang terdampak pandemi Covid-19. Salah satu sekolah dasar yang menjadi sasaran program ini adalah SDN No. 40 Hulonthalangi, Gorontalo. Tujuan kegiatan ini adalah untuk mengetahui implementasi program Kampus Mengajar sebagai wujud kontribusi belajar sambil berdampak. Metode yang digunakan dalam kegiatan ini adalah deskriptif kualitatif dengan pengumpulan data berupa observasi, wawancara dan dokumentasi. Hasil kegiatan menunjukkan bahwa implementasi program Kampus Mengajar di SDN No. 40 Hulonthalangi, Gorontalo melalui program pendampingan peningkatan literasi numerasi, adaptasi teknologi dan administrasi, berjalan dengan baik dan memberikan dampak positif kepada seluruh elemen yang terlibat, khususnya di sekitar lingkungan sekolah.
PERAN MAHASISWA KAMPUS MENGAJAR UNTUK PENINGKATAN LITERASI NUMERASI SISWA Septiana Kurniasari; Muhammad Yunus; Sandi Nuralim; Tirani Mantulangi; Moh Arif Alfan Habibi
Jurnal Pengabdian Pendidikan Masyarakat (JPPM) Vol 4 No 2 (2023): Jurnal Pengabdian Pendidikan Masyarakat Vol 4 No 2 (2023)
Publisher : LPPM UNIVERSITAS MUHAMMADIYAH MUARA BUNGO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52060/jppm.v4i2.1389

Abstract

The low level of numeracy literacy in Indonesia causes human resources to be uncompetitive. To solve these problems, through the Kampus Mengajar Program Batch 5, students develop programs that are implemented during their assignment at SD Negeri 12 Kabila. The purpose of this activity is to find out the role of Kampus Mengajar students Batch 5 in increasing students' numeracy literacy. The method used in this activity is descriptive method. The results of the activity show that the Kampus Mengajar Program Batch 5 is very influential in realizing an increase in numeracy literacy in students. Students as agents of change also play an important role in increasing enthusiasm, learning motivation and student learning outcomes as well as creating fun and enjoyable learning media.
Development of an Incinerator with a Multi-Stage Condenser System as an Effort to Reduce CO₂ Emissions Gas from Plastic Waste Burning in Gorontalo City Raghel Yunginger; Yusuf Usman; Meilan Demulawa; Salmawaty Tansa; Mohamad Jahja; Muhammad Yunus
BULETIN FISIKA Vol. 27 No. 1 (2026): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/BF.2026.v27.i01.p03

Abstract

The increasing plastic waste volume in Gorontalo City is not balanced by a good management system, making people choose to burn their waste in open space. Not only makes a bad scene, this burning emits dangerous gases such as CO2 that contributes to poor air quality and climate change. This study has developed an environmentally friendly incinerator with a stacked condenser system that emits less CO2 gas. This incinerator consists of three main components: a combustion zone, as the place where plastic waste is burned; a chimney, for the flowing of gas; and stacked condensors, for cooling and keeping the gas before emitting it out. We test the incinerator with and without condensors based on the CO2 emission from 20 minutes' burning of 1.5 kg of plastic waste. The results show that an incinerator with a stacked condensor system can significantly reduce CO2 gas emissions by 18.88% more than an incinerator without condensors. This implies that incinerator with stacked condensors can be an alternative way to reduce CO2 gas from open-space waste burning on a small scale.
Peningkatan Kualitas Hidup Masyarakat melalui Inovasi Ecobrick: Transformasi Sampah Plastik menjadi Nilai Ekonomis Septiana Kurniasari; Muhammad Yunus; Mohammad Iqbal; Hilminata Saputra Sulaiman; Devi Triana Paputungan; Rila Virna
GUYUB: Journal of Community Engagement Vol 5, No 4 (2024)
Publisher : Universitas Nurul Jadid

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33650/guyub.v5i4.9592

Abstract

In 2023, there will be 141.60 tons of waste produced every day, both by households, offices, markets, commerce, public facilities and areas in Gorontalo City, and around 35% is plastic waste. The production of plastic waste in Gorontalo City is in first place. If this is allowed to continue, it will cause environmental pollution. This is because plastic waste is a type of solid waste that is difficult to decompose in a short time, which takes around 50-100 years to decompose into soil. Based on these problems, efforts need to be made to empower the community through making Ecobricks as a solution for healthy living with knowledge, faith, immunity and safety. This aims to preserve the environment, increase health independence, prevent disease and/or disasters, and increase people's income through Ecobrick products. The stages in this activity include coordination with partners, namely the Az-Zahra Mosque Ta'mirul Agency group, Pre Test, socialization regarding plastic waste, its impact on the environment and health, both in terms of science and religion, introducing the Ecobrick method as a environmentally friendly alternative plastic waste management, training in making Ecobricks, Post Test, monitoring and finishing of Ecobrick products. The results obtained from this activity include an increase in partner knowledge of around 20%, 72 Ecobrick bottles have been produced with a total of 14,309 grams of plastic waste, partner satisfaction is at 3.6 on a scale of 4, and 1 table, 4 chairs have been produced (can also be used as a table), and 1 shelf.