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The manufacturing industry in Indonesia has experienced significant growth. This increase has also impacted the demand for motorcycle spare parts. Currently, brake pads are composed of asbestos, which makes them prone to overheating and failure when reaching high friction temperatures. Therefore, an alternative brake pad material is an organic material mixed with coconut shell powder and bamboo fiber. This study aims to analyze the wear and hardness levels of motorcycle brake pads made from coconut shell powder and bamboo fiber. The study used varying ratios of coconut shell powder, bamboo fiber, and epoxy resin: 40:30:30, 35:35:30, and 30:40:30. Eighteen specimens were tested. Wear testing was performed using an Ogoshi Wear Tester, while hardness testing was performed using a Brinell hardness tester. The test results showed that the smallest wear rate on brake pads with variations of 40% coconut shell powder, 30% bamboo fiber and 30% epoxy resin was 0.001107984 mm3/kg.m. The highest hardness level was also in the variation of 40% coconut shell powder, 30% bamboo fiber and 30% epoxy resin at 63,0024 kg/. So it can be concluded that the greater the percentage of coconut shell powder and the smaller the percentage of bamboo fiber, the lower the wear rate. If the greater the percentage of coconut shell powder and the smaller the percentage of bamboo fiber, the higher the hardness level. So it can be concluded that a good brake pad variation is a variation of 40% coconut shell powder, 30% bamboo fiber and 30% epoxy resin.

This study aims to design a blanking die used for mass-producing mobile phone holders while prioritizing efficiency and dimensional accuracy. The die set developed includes key components such as the punch, die, stripper, guide post, and fastening bolts. The product produced has dimensions of 138 × 63 × 2 mm and uses ST 37 steel as the raw material. Based on calculations, the required blanking force is 129,000 kN, which is considered safe for the production process. The design also accounts for an optimal clearance of 0.083 mm and a die thickness of 35 mm to effectively withstand the working load. Simulations using stress analysis methods reveal that the von Mises stress distribution on both the punch and die remains below the elastic limit of SKD11 material. The maximum stress on the punch is recorded at 2.437 × 10⁵ N/m², while on the die it reaches 5.153 × 10⁵ N/m², both well below the yield strength of SKD11, which is 2.918 × 10⁸ N/m², indicating that these components operate safely without the risk of plastic deformation. To strengthen the construction, the stripper is designed with a thickness of 12 mm, and the addition of four SCM435 bolts is recommended to improve system stability. This die design is verified through manual calculations and Finite Element Analysis (FEA) to ensure its reliability. Overall, the findings of this study demonstrate that the designed blanking die can support mass production with high precision, optimal structural strength, and long-term durability.

Misuse of accounts linked to telephone numbers has become a serious issue in the realm of cybercrime. This often happens when a user's telephone number is inactive or has entered a grace period, and is then resold by the provider to a third party. This creates an opening for hackers to access accounts associated with that number, including banking and e-commerce accounts. By utilizing the information obtained, hackers can carry out illegal transactions that harm genuine users. This article was created to analysis the mechanisms of abuse in the context of cybercrime, as well as the psychological and financial impacts experienced by victims. The results of this case analysis show that a lack of awareness of cyber security and personal data protection increases the risk of misuse, making it important for users to implement stricter security measures.

Excessive use of mobile phones can impact children's emotional intelligence development. This study aims to analyze the relationship between the duration of mobile phone use and emotional intelligence among students in grades 4–6 at SD Negeri 2 Kedungwringin. This research employed a quantitative approach with a cross-sectional design. The sample consisted of 43 students selected using accidental sampling. Data were collected through a questionnaire that had been tested for validity and reliability. Data analysis was conducted using the Spearman Rank test. The results showed that the majority of students used mobile phones for a short duration (<2 hours) at 58.1%, moderate duration (2–3 hours) at 27.9%, and excessive duration (>3 hours) at 14.0%. Statistical analysis revealed a significant negative correlation between the duration of mobile phone use and children’s emotional intelligence, with a p-value of 0.010 (<0.05) and a correlation coefficient of -0.387. This indicates that the shorter the duration of mobile phone use, the better the child's emotional intelligence. The conclusion of this study is that there is a significant relationship between the duration of mobile phone use and the emotional intelligence of students in grades 4–6. Therefore, it is recommended that parents and teachers supervise and regulate children's mobile phone usage to support healthy and optimal emotional development.

Introduction : Neck pain is defined as pain experienced from the base of the head (occiput) to the upper part of the back and extends to the outer and upper borders of the shoulder blade (scapula). Excessive use of cellphones by continuously placing the head in the same position will cause weakness and fatigue in the neck muscles. Purpose : This education aims to explain the causes, symptoms and exercises that can be done independently to prevent ongoing pain. Method : The method used is by providing education to teenagers, with promotional media in the form of leaflets to make it more interesting and easy to understand which contains definitions, symptoms, risk factors and exercises to reduce the pain felt.  Conclusion : The educational activities that have been carried out at Ahmad Yani Jabung Vocational School, Malang can provide students with knowledge and insight regarding neck pain so that they can increase their knowledge about how to prevent and treat neck pain independently by carrying out active exercises.  

Pesatnya perkembangan belanja online melalui platform internet telah menyebar ke seluruh dunia khususnya di Indonesia dan telah banyak diketahui oleh masyarakat. Dalam konteks ini, kehadiran toko online atau e-commerce membantu perusahaan untuk menawarkan layanan dan produk yang berbeda, mengkomunikasikan informasi bisnis dan menjaga hubungan antara pemasok dan pelanggan. E-commerce memungkinkan transaksi bisnis diproses lebih efisien. Berbagai penelitian telah mengkonfirmasi bahwa e-commerce  membantu bisnis memperluas jangkauan pasar mereka dengan menawarkan produk dalam skala besar dan menyediakan penyimpanan data dan pelaporan yang dapat diakses dan disimpan melalui platform web. NICESO merupakan perusahaan retail dengan konsep toko modern yang  menawarkan berbagai macam produk antara lain alat tulis, mainan, aksesoris, peralatan rumah tangga, aksesoris handphone,  dan komputer. Tujuan dari pengembangan aplikasi NICESO adalah untuk membuat aplikasi penjualan yang memungkinkan masyarakat mencari dan membeli produk di suatu toko tanpa harus datang langsung ke toko. Aplikasi  juga membantu toko NICESO  menjangkau pelanggan, baik yang berbelanja langsung di toko maupun yang menggunakan aplikasi. Perancangan aplikasi ini dirancang agar mudah dipahami  oleh berbagai kalangan, mulai dari remaja hingga orang tua.