This research explores the development and innovative implementation of an Arduino Uno-based Geiger-Muller counter (GMC) as a physics learning tool designed to enhance students’ critical thinking skills. The aim was to address the gap in effective educational media in teaching radioactivity materials. This research used the analysis, design, development, implementation, and evaluation (ADDIE) model, which includes the analysis, design, implementation development, and evaluation stages. The sample of this study involved 165 students at University of PGRI Pontianak, using a pre-experimental design with one pretest-posttest group. Validation by experts and feedback from students confirmed the high validity and effectiveness of the media, with significant improvements seen in critical thinking indicators such as evaluation, analysis, interpretation, and inference. The use of real-world materials, including red Borneo agate testing, provided a practical context that enriched the learning experience. Although there was no control group, the findings suggest that integrating hands-on technology-based tools into physics education can significantly improve students’ critical thinking skills. This study contributes to the growing literature on educational innovation, offering practical solutions to improve critical thinking in science education through interactive and contextually relevant learning media.
The objective of this investigation is to examine the impact of project-based learning on secondary school students' collaborative abilities. This investigation utilizes qualitative research methods and a case study approach. To this end, data were collected via direct observations of students' interactions during the project, in-person interviews with students and teachers to gain insight into their experiences, and an analysis of documents such as project assignments, reports, and students' reflections. Findings from the study demonstrated that the integration of PBL led to substantial advancements in students' collaboration abilities. These enhancements can be categorized into three main aspects: communication skills, teamwork, and problem-solving abilities. The analysis of communication skills revealed that students exhibited an improvement in conveying ideas and attending to others' opinions, indicating enhanced interactive processes. Furthermore, students displayed an enhancement in teamwork, which included effective task allocation and reciprocal assistance in accomplishing shared objectives. Additionally, problem-solving skills exhibited by students demonstrated a marked progression, with students attaining creative and innovative solutions through collaborative efforts. The findings of this study offer significant insights into the merits of incorporating project-based learning methodologies within the secondary school curriculum, with the aim of cultivating critical collaboration skills in students to equip them to confront challenges in their future educational and professional pursuits.The effective integration of this pedagogical approach necessitates comprehensive support from educators in their role as facilitators, along with students' readiness to engage in a more interactive and participatory learning process. Further exploration through research is warranted, focusing on the implementation of this pedagogical approach across diverse contexts and academic levels. Such inquiry would serve to enhance the comprehension and practical implementation of project-based learning strategies in cultivating students' collaborative skills.
Diabetic Foot Ulcers remain a major cause of morbidity and hospitalisation in Malaysia, and primary care providers play a central role in prevention and wound management. At Penampang Health Clinic, dressing visits increased from 1,991 in 2020 to 4,671 in 2023, yet no formal wound care training was conducted between 2019 and 2022, creating gaps in clinical competency. This cross sectional study assessed the level of knowledge and practice on diabetic wound care among 50 healthcare providers consisting of Assistant Medical Officers and Staff Nurses. A validated questionnaire measured knowledge (maximum score 15) and practice (maximum score 45) using descriptive statistical analysis. Participants demonstrated moderate knowledge (12.5±2.1) and moderate practice (35.8±3.4). Lower scores were seen among less experienced staff and those with diploma-level qualifications. These findings indicate the need for structured continuous professional development and standardised wound care training to improve diabetic foot management in the primary care setting.
Setiap kendaraan bermotor akan menghasilkan emisi. Emisi yang dimaksud diantaranya adalah Karbondioksida (CO2) dan Karbonmonooksida (CO). Seperti diketahui bahwa dump truck umumnya bermesin diesel dengan bahan bakar solar. Emisi gas buang merupakan hasil pembakaran bahan bakar dalam mesin diesel, yang dikeluarkan melalui knalpot ke udara bebas sehingga menghasilkan polusi. Dampak dari polusi ini maka akan mempengaruhi kesehatan bagi manusia yang menghirupnya, termasuk hewan dan tumbuhan. Kurang terkontrolnya emisi gas buang kendaraan yang beroperasi, disebabkan keterbatasan alat monitoring emisi yang hanya dimiliki oleh instansi tertentu (Dishub dan Polda). Penelitian ini bertujuan untuk merancang alat monitoring emisi kendaraan berbahan bakar solar. Sensor mq2 untuk konsentrasi gas CO dan sensor mq7 untuk konsentrasi CO2 digunakan sebagai detektor emisi. Sensor di pasang di depan knalpot kendaraan dalam keadaan mesin hidup dan posisi diam. Pengambilan data dilakukan pada beberapa kondisi rpm putaran mesin. Berdasarkan hasil pengukuran terhadap 4 kendaraan dump truck, kandungan kadar CO2 semua kendaraan dalam batas aman untuk semua putaran mesin, namun terdapat 1 kendaraan yang memiliki kadar CO diatas Nilai ambang Batas (NAB) pada putaran diatas 1200 rpm. Pengukuran emisi untuk kendaraan pribadi menunjukkan bahwa kadar CO2 untuk semua putaran dalam batas aman sedangkan kadar CO diatas NAB jika putaran diatas 2400 rpm . Hasil uji komparasi nilai CO2 antara alat desain dan CO2 ref menunjukkan tidak ada perbedaan yang signifikan pada a 0.05 untuk 4 kendaraan Kata kunci : . sensor, emisi, monitoring, solar
