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All Journal Jurnal Pendidikan Fisika Indonesia Geoplanning : Journal of Geomatics and Planning Malikussaleh Journal of Mechanical Science Technology Proceeding ISETH (International Summit on Science, Technology, and Humanity) International Journal for Disaster and Development Interface Journal Medical Informatics Technology
Jumadi, J
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Automotive Engineering Computer Science & IT Control & Systems Engineering Dentistry Earth & Planetary Sciences Education Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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Mapping Students' Problem-Solving Skills in Physics Subject After Inquiry Learning at Class X SMAN 1 Prambanan Putri, R Z; Jumadi, J; Ariswan, A; Kuswanto, H
Jurnal Pendidikan Fisika Indonesia Vol 15, No 2 (2019)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v15i2.15246

Abstract

Problem-solving skills is necessary to be mastered by students to help them in solving the problems of their daily life in the future. The purpose of this study was to map the student problem-solving skills after inquiry learning in Physics subject, impulse, and momentum in class X SMAN 1 Prambanan, Yogyakarta. Experimental research model with one-shot case study design was used in this study. Data collection was performed through essays at the end of the learning process. The results of the mapping show that students have different problem-solving skills levels at each stage. At the stage of problem identification, students were in a very good category. At the stage of planning the problem solution and problem-solving implementation, the students were in a good category, while in results evaluation, the students were in a fairly good category. The result of this study can contribute to giving the point of view to the teacher about students' problem-solving skills level based on the indicators as well as giving the additional information as a literature in the topic of students’ problem-solving skills after inquiry learning.
Implementation of Rasch Model for Mapping Students’ Metacognitive Awareness Sukarelawan, M I; Jumadi, J; Kuswanto, H; Nurjannah, T; Hikmah, F N; Ramadhan, M F
Jurnal Pendidikan Fisika Indonesia Vol 17, No 2 (2021)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v17i2.27172

Abstract

This study aim is to map students’ metacognitive awareness in physics subjects. This research was conducted at SMAN 1 Bantarsari in 2020. A total of 112 respondents (male = 17% and female = 83%) from class XI and XII were selected using a combination of snowball techniques and convenience sampling. Students’ metacognitive physics awareness was administrated using the Physics Metacognition Inventory (PMI) and analyzed using the Rasch model. The PMI inventory consists of 26 items and uses a Likert scale of 5 ratings ranging from 1 (never) to 5 (always). Mapping students’ physics metacognitive awareness based on the Logit Value of Person. Metacognitive awareness is classified into four levels, namely: low, medium, high, and very high levels. The results showed that more than 80% of students had metacognitive awareness at moderate and high levels. Dominant female students have metacognitive awareness at a high level and male students at a moderate level. The students’ metacognitive awareness in class XI and XII were at very high and moderate levels, respectively. The 15-16 year age group was dominant at a moderate level and the 17-18 year age group at a high level.
Pembuatan Sistem Wiper Otomatis pada Kendaraan Menggunakan Aplikasi Arduino Uno Dabet, Abubakar; Jumadi, J; A.P, Muhammad Iqbal
Malikussaleh Journal of Mechanical Science Technology Vol 5, No 2 (2021): Malikussaleh Journal of Mechanical Science and Technology
Publisher : Malikussaleh University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v5i2.6020

Abstract

Sistem wiper konvensional saat ini masih sepenuhnya dikendalikan secara manual oleh pengemudi untuk mengatur kecepatan wiper berdasarkan intensitas air di kaca kendaraan. Salah satu inovasi yang dapat membantu pengemudi untuk lebih nyaman berkendara yaitu dengan menambahkan mode otomatis pada sistem wiper. Tujuan dari penelitian ini yaitu membuat  sistem wiper untuk kendaraan ringan yang lebih praktis dan menguji kelayakan nya.Jenis Penelitian yang digunakan adalah pre-eksperimental design dengan teknik pengumpulan data berupa angket yang memiliki dua aspek yaitu ergonomi dan teknis, dengan hasil dari uji kelayakan mencapai 92% untuk aspek ergonomi dan 92% untuk aspek teknis. Berdasarkan hasil uji kelayakan dua aspek tersebut dapat disimpulkan bahwa sistem wiper otomatis ini termasuk kategori sangat layak berdasarkan kategori dari 92% sistem wiper ini dirancang untuk mempermudah pengemudi, dan pengujian kinerja sudah mencapai semua pengkondisian wiper.
Implementation of Rasch Model for Mapping Students’ Metacognitive Awareness Sukarelawan, M I; Jumadi, J; Kuswanto, H; Nurjannah, T; Hikmah, F N; Ramadhan, M F
Jurnal Pendidikan Fisika Indonesia Vol 17, No 2 (2021)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v17i2.27172

Abstract

This study aim is to map students’ metacognitive awareness in physics subjects. This research was conducted at SMAN 1 Bantarsari in 2020. A total of 112 respondents (male = 17% and female = 83%) from class XI and XII were selected using a combination of snowball techniques and convenience sampling. Students’ metacognitive physics awareness was administrated using the Physics Metacognition Inventory (PMI) and analyzed using the Rasch model. The PMI inventory consists of 26 items and uses a Likert scale of 5 ratings ranging from 1 (never) to 5 (always). Mapping students’ physics metacognitive awareness based on the Logit Value of Person. Metacognitive awareness is classified into four levels, namely: low, medium, high, and very high levels. The results showed that more than 80% of students had metacognitive awareness at moderate and high levels. Dominant female students have metacognitive awareness at a high level and male students at a moderate level. The students’ metacognitive awareness in class XI and XII were at very high and moderate levels, respectively. The 15-16 year age group was dominant at a moderate level and the 17-18 year age group at a high level.
Development of An Android-Based Physics E-Book with A Scientific Approach to Improve The Learning Outcomes of Class X High School Students on Impulse and Momentum Materials Ndoa, Y A A; Anastasia, D P; Jumadi, J
Jurnal Pendidikan Fisika Indonesia Vol 18, No 2 (2022)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v18i2.30824

Abstract

The use of technology during a pandemic can be in the form of using e-books in learning activities. This research is Research and Development (RD) which produces a product in the form of an Android-based physics e-book with a scientific approach. The aim of this study is to develop and determine the feasibility and effectiveness of e-books in improving learning outcomes on impulse and momentum materials. The development of this physics e-book uses a 4D model according to Thiagarajan, namely define, design, develop, and deploy. Results based on 4D model steps are (1) Define to produce an analysis of the needs of students during online learning, (2) Design to produce a product, namely a physics e-book, and (3) Develop to produce validation and the final product, and (4) Deploy of products is distributed in a limited way to physics teachers in Jatinom Senior High School. Based on expert consideration, the average product feasibility on aspects of material/content, language and images, e-book content design, and language included in the very high category. The physics e-book applied to students class X Mathematics and Natural Sciences in Jatinom Senior High School. Student learning outcomes increased in the moderate category after carrying out physics learning with e-books. Thus, an Android-based physics e-book with a scientific approach is feasible and efficient to be applied in physics learning on impulse and momentum material to improve student learning outcomes.
Rancang Bangun Alat Pengiris Bawang Serbaguna Zulkarnaen, Amay Velda; Dabet, Abubakar; Yusuf, Muhammad; Putra, Reza; Jumadi, J
Malikussaleh Journal of Mechanical Science and Technology Vol 7, No 1 (2023): Malikussaleh Journal of Mechanical Science and Technology
Publisher : Malikussaleh University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v7i1.12591

Abstract

This study aims to obtain the production amount of the slicing process of a multipurpose onion slicer according to the needs of the home industry. This versatile onion slicer uses two ways, namely conventional and unconventional. From the experimental results, the rotation of the cutting disk obtained a speed of 46.05 m / s, the cutting power obtained based on the calculation of 513.9 Watt, smaller than the motor power used. The average working capacity of slicing using an electric motor within 1 hour for shallots, plantains, and cassava is 213 g/min, 590.33 g/min and 474.66 g/min, respectively. While if using the manual method is 125.66 g/min, 128.66 g/min, and 161 g/min. Using a 220 Volt water pump drive engine 0.5 HP 2000 Rpm, which is added to the dimmer to adjust the rotation speed. The frame uses Aluminum with a thickness of 1.2 mm.
Cervical Cancer Papsmear Classification through Meta-Learning Technique using Convolution Neural Networks. Mahendra, M; Jumadi, J; Riana, Dwiza
Journal Medical Informatics Technology Volume 1 No. 4, December 2023
Publisher : SAFE-Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37034/medinftech.v1i4.23

Abstract

This study uses convolutional neural networks (CNNs) and meta-learning techniques to create an accurate and efficient model for classifying the risk factors of cervical cancer. The dataset includes four types of cervical lesions, and the main objective is to categorize these lesions as either benign or malignant. This classification is essential for early and succesfull treatment of cervical cancer. The challenge arises from the complexity and variations in the images, resulting in the inability of conventional machine learning and deep learning approaches to provide correct classifications. Meta ensemble learning approaches are employed to improve the model's classification accuracy. The dataset of cervical cancer risk factors is preprocessed before being used to train and evaluate numerous CNNs utilizing pre-trained models and various architectures. Subsequently, a meta-learning is employed to optimize the learning process, and used to aggregate the outputs of the multiple CNNs. Moreover, the assessment findings show the model achieves high accuracy and effectiveness. Finally, the suggested model's accuracy score will be contrasted against the current cutting-edge methods used by other existing systems.
Spatio Temporal Analysis of Urban Heat Island Using Landsat 8 Oli/Tirs Imagery in Klaten District In 2013 – 2021 Wahyudi, Hendra; Jumadi, J
International Journal for Disaster and Development Interface Vol. 4 No. 1 (2024): April 2024
Publisher : Amcolabora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53824/ijddi.v4i1.61

Abstract

Klaten Regency is one of the areas that has experienced changes in use over time, such as agricultural land becoming built-up or non-agricultural land. This has an impact on the increase in air temperature which can lead to the occurrence of the phenomenon of the Heat Island or Urban Heat Island. This study aims to determine the spatio-temporal variation of vegetation index value (NDVI), Surface Temperature and in Klaten Regency in 2013 - 2021 and determine the relationship between vegetation index value (NDVI) and UHI in Klaten Regency. The method used in this research is Landsat 8 image data processing such as NDVI, LST and UHI calculation to get the final result. Meanwhile, to get the relationship between NDVI and Surface Temperature related to the UHI phenomenon, simple regression testing was carried out. The results obtained from the processing results show that Klaten Regency is dominated by vegetation cover density with very high and high classifications despite the decrease in area from 2013 to 2021. Surface temperature in Klaten Regency is dominated by surface temperatures within the range of 25 - 28o C spread across the entire region from 2013 to 2021. The results of the linear regression have a coefficient value of r2 where the value shows results with a value of 0.377. The result of the coefficient of determination shows that the amount of influence obtained from the density of vegetation land cover with an average surface temperature of 37.7% where the rest can be influenced by other factors.
Analysis of Service Quality on User Satisfaction in BPJS Kesehatan Website Trihardo, Rendra; Jumadi, J; Ernawati, Muji
Journal Medical Informatics Technology Volume 2 No. 4, December 2024
Publisher : SAFE-Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37034/medinftech.v2i4.56

Abstract

BPJS Kesehatan plays a vital role in providing health insurance to millions of Indonesians, making it essential to assess the quality of service on their website to ensure efficient and accessible healthcare delivery. This study evaluates of service quality on user satisfaction with the BPJS Kesehatan website by analyzing 10 hypotheses related to information quality, system usability, and service effectiveness. The research employed a quantitative approach, utilizing a structured questionnaire and regression analysis with data from 32 respondents. Significant findings include a strong positive effect of service quality on system use (β = 0.928, p = 0.002) and a notable impact of system use on net benefits (β = 0.337, p = 0.014). The model's high R² value of 0.796 indicates that nearly 80% of the variance in net benefits is explained by the predictors, demonstrating that improved service quality and increased system use substantially enhance user satisfaction and perceived benefits. These results underscore the importance of focusing on service quality and user engagement to optimize outcomes from the BPJS Kesehatan website.
Utilizing Open Access Spatial Data for Flood Risk Mapping: A Case Study in the Upper Solo Watershed Jumadi, J; Danardono, Danardono; Priyono, Kuswaji Dwi; Roziaty, Efri; Masruroh, Heni; Rohman, Arif; Amin, Choirul; Hadibasyir, Hamim Zaky; Fikriyah, Vidya N.; Nawaz, Muhammad; Sattar, Farha; Lotfata, Aynaz
Geoplanning: Journal of Geomatics and Planning Vol 11, No 2 (2024)
Publisher : Department of Urban and Regional Planning, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/geoplanning.11.2.189-204

Abstract

Indonesia is experiencing a rise in natural disasters due to its geographical position within a tropical region, with the Upper Solo River watershed exhibiting a heightened risk of flooding. This region has already suffered numerous floods due to excessive precipitation and insufficient drainage. Susceptibility, hazard, and risk studies have been conducted to investigate this phenomenon but have been limited to specific regions within the catchment area. This study aims to construct a GIS-based flood risk model using Open-Access Spatial Data (OASD) based on diverse physical characteristics, urbanization levels, and population. We used several OASD, including SRTM, Sentinel 2 MSI, GPM v6, NASA-USDA Enhanced SMAP Global Soil Moisture Data, GHS-SMOD R2023A - Global Human Settlement Layers, and GHSL: Global Population Surfaces 1975-2030 (P2023A). The model integrates the risk parameters to identify flood risk using a weighted overlay in ArcGIS. The results demonstrate spatial heterogeneity in flood risk throughout the watershed. The result also reveals that Surakarta City, with a high proportion of its area in the 'High' (57.3%) and 'Very High' (29.54%) risk categories, is at the highest risk of flooding within the watershed. The study enhances understanding of this topic by comprehensively evaluating flood hazards, vulnerabilities, and risks. It highlights the significance of utilizing low-cost OASD to improve flood preparedness and response strategies.
Co-Authors A.P, Muhammad Iqbal Anastasia, D P Arif Rohman Ariswan, A Choirul Amin Dabet, Abubakar Danardono, Danardono Dwiza Riana Efri Roziaty Ernawati, Muji Fikriyah, Vidya N. Hamim Zaky Hadibasyir Hendra Wahyudi Hikmah, F N Kuswaji Dwi Priyono Kuswanto, H Lotfata, Aynaz Mahendra, M Masruroh, Heni Moh. Irma Sukarelawan Muhammad Yusuf Nawaz, Muhammad Ndoa, Y A A Nurjannah, T Putra, Reza Putri, R Z Ramadhan, M F Sattar, Farha Setiawan, I. N. Trihardo, Rendra Zulkarnaen, Amay Velda