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To overcome the students' lack of knowledge about local plants around the school, this mentoring uses a project-based learning model (PjBL) with the aim of accompanying them in a plant barcode making project that is carried out for 4 months. As a technology-based learning medium, students make observations, identify plants, species and make barcodes containing information about plants. Student activities before, during, and after the project are described through a qualitative research approach. The result is that project-based learning successfully improves students' creativity, engagement, critical thinking, and cooperation skills. Additionally, students gain a better understanding of biodiversity through this project, and they can use technology to provide engaging and relevant lessons.

Image denoising is a fundamental challenge in image processing, where the objective is to remove noise while preserving critical image features. Traditional denoising methods, such as Wavelet, Total Variation (TV) minimization, and Non-Local Means (NLM), often struggle to maintain the topological integrity of image features, leading to the loss of essential structures. This study proposes a Cubical Persistent Homology-Based Technique (CPHBT) that leverages persistence barcodes to identify significant topological features and reduce noise. The method selects filtration levels that preserve important features like loops and connected components. Applied to digit images, our method demonstrates superior performance, achieving a Peak Signal-to-Noise Ratio (PSNR) of 46.88 and a Structural Similarity Index Measure (SSIM) of 0.99, outperforming TV (PSNR: 21.52, SSIM: 0.9812) and NLM (PSNR: 22.09, SSIM: 0.9822). These results confirm that cubical persistent homology offers an effective solution for image denoising by balancing noise reduction and preserving critical topological features, thus enhancing overall image quality.

The activity of introducing the website as a medium for village information and promotion was carried out on August 24 2024 at the RW 01 Kalibaru Office Hall, targeting participants as residents of RW 01. Various objectives of this activity were the reason for this activity, but the main objective of this activity was to increase public awareness of the importance of promoting villages through digital platforms, especially in introducing the village's tourism, arts and cultural potential to a wider audience. Regarding the method used in this activity, the activity of introducing this website includes socialization, scanning barcodes to access the website, as well as extracting information related to village potential that is not widely known. Resource persons and moderators or guides involved in this activity include Panji Wijonarko M.Kom, Rohmad Dwi Cahya, Bimbang Agus Purnomo, Wawan Iswanto, Burhanudin, and Rasyan Akbar. As expected, the results of this activity show that village residents are able to accept and understand the importance of using websites as an effective promotional tool. As a result, this activity succeeded in introducing the concept of village promotion via the internet, which is expected to not only increase the number of tourists visiting, but also strengthen residents' awareness of the importance of digital promotion strategies in village development.

This research is motivated by the importance of the teacher's role in determining and applying effective learning methods so that students can actively participate in Civics learning. The results showed that teachers who used the lecture method which was too dominant resulted in students being less actively involved in the learning process. As a result, this research offers the jigsaw cooperative learning method integrated with barcodes as a solution to increase student activeness. In this way, students will better understand the material, work together in groups, and teach others. The integration of barcodes makes learning easier for students, they can scan barcodes connected to various websites. According to the results of the study, the percentage of student learning activity increased significantly from 60.8% before the study, then increased in cycle I obtained 69.8% and again reached an increase of 80.4% in cycle II. Keywords: student activity, learning methods, use of technology

This research aims to determine criminal acts of fraud with the motive of counterfeiting Qris Barcodes in terms of the aspect of prevention through the Indonesian Criminal Law. This research is normative research which is analyzed descriptively, using a law and case approach. The results of the research are that regulations regarding criminal acts of fraud are generally regulated in Article 378 of the Criminal Code, and to strengthen the legal basis it can be accommodated through Article 35 of Law Number 19 of 2016 concerning Information and Electronic Transactions. As a special law, the ITE Law is at least a guideline and legal basis for members of the public in carrying out activities in the online world. Overcoming the occurrence of criminal acts of online fraud is carried out with preventive (non-penal) and repressive (penal) efforts. Repressive efforts in this case are regulated based on Article 35 of the ITE Law and Article 378 of the Criminal Code. Meanwhile, preventive efforts are carried out by taking precautions so that criminal acts of online fraud can be minimized without applying criminal law, but rather by carrying out preventive efforts before the criminal act occurs, such as improving the community's economy, socializing to the public how to use the internet properly and the characteristics of electronic transaction-based criminal acts of fraud.