The shaking of the surface of the Earth is what is known as an earthquake; its effects can span a wide area and cause such damage as to result in the total collapse of buildings. It is essential to improve the construction industry to protect buildings from disaster. However, construction development is costly. Therefore, this article focuses mainly on creating an earthquake-resistant construction model using Virtual Reality (VR), which offers its users new ways to improve knowledge transfer and communication. There were three stages in generating this model: pre-development, development, and post-development. These stages include a needs assessment, planning, initial development, validation, analysis and evaluation, and field testing. In the post-development stage, the model was then tested by civil engineering students, and a statistical analysis was used to evaluate the implementation of VR. The VR was developed to assist civil engineering students while fostering their interest in information technology. The results indicated that the VR-based application had a favorable and significant effect on learning. In addition, the mean score of 17.3 showed an improvement in average score for the VR-based application compared to traditional education. Integration of VR into civil engineering education can statistically improve learning outcomes, particularly regarding the construction of earthquake-resistant buildings.

Understanding the factors influencing elementary school students' internet skills is critical in the rapidly evolving digital age. The research was conducted on the influence of gender, parental occupation, and school status on internet self-efficacy, interdependence, internet attitudes, and internet skills. Using logistic regression analysis, it was found that the male gender significantly affected internet self-efficacy and interdependence items with a value of p0.05; the largest finding on internet self-efficacy items showed a 3.846 times greater chance of helping others via the internet compared to females. Parents who work as non-government employees have a significant effect p05 on internet self-efficacy, interdependence, internet attitude, and internet skills items. The largest finding on internet skills is mainly increasing the ability to install applications in children, with 5.653 times greater odds than children from entrepreneurs. Students from private schools have the greatest chance of 3.840 times greater in developing internet skills information skills compared to public school students; significance (p0.05) was found in internet self-efficacy, interdependence, and internet skills items. The findings offer important insights for developing educational policies to improve primary school students' digital literacy, considering gender, parental occupation, and school status.

Professionalism of construction workers is one of the keys to the success of infrastructure development projects. The professionalism of the workforce is demonstrated through the possession of expertise competence certificate (SKA) and/or certificates of skills (SKT) issued formally through competency tests by the National Construction Cervices Development Agency (LPJKN). The magnitude of the national skilled manpower needs has not been able to meet the availability of professional workforce. Strategies to develop the quality of resources require sufficient information on the characteristics of the resources themselves, facilities, constraints, stakeholder support, regulations, and socioeconomic as well as cultural conditions. The problems faced by Indonesia in improving the competitiveness of skilled construction workers are (1) how the level of professionalism of skill workers in construction field, (2) what the constrains on improving the quality of skilled construction workers,and(3) how the appropriate model of education and training skillfull construction work. The study was designed with quantitative and qualitative approaches. Quantitative methods were used to describe the profile of sklill constructions worker. Qualitative methods were used toidentify constraintsin improving the qualityof skilled labor, as well as formulate a viable collaborative education and training model for improving the quality of skill labor. Data were collected by documentation, observation, and interview. The result of the study indicate theat (1) the professionalism knowledge of skilled constructions worker are in still low condition, (2) the constrain faced in developing the quality of skilled construction labor cover economic and structural constrains, and (3) collaborative eduction and training model can improve the quality ods skilld labor contructions.

Energi listrik saat ini merupakan salah satu kebutuhan masyarakat yang sangat penting dan sebagai sumber daya ekonomis yang paling utama yang dibutuhkan dalam berbagai kegiatan. Kebutuhan energi listrik setiap tahunnya terus mengalami peningkatan. Namun, perkembangan konsumsi energi listrik yang pesat ini tidak diimbangi dengan pertumbuhan pembangkit listrik. Untuk mengatasi permasalahan tersebut, maka dibutuhkan sumber energi alternatif sebagai pengganti batu bara. Salah satu sumber daya alam yang dapat diperbaharui adalah energi surya. Untuk memanen energi tersebut, diperlukan suatu peralatan yang dinamakan panel surya atau fotovoltaik. Penelitian ini membahas tentang perancangan instalasi PLTS di Yayasan LPI Sabilillah Malang dengan menggunakan metode analisa secara teknis dan ekonomi. Sistem PLTS ini dirancang untuk menyuplai kebutuhan listrik guna membantu kegiatan sehari-hari. Perancangan PLTS ini membutuhkan 10 modul surya berkapasitas 120 wp, 1 buah Inverter berkapasitas 3 kW, dan 4 unit baterai 12 V/20 Ah. penghematan biaya listrik dalam setahun sebesar Rp. 2.369.885,88,- dengan modal instalasi instalasi sistem PLTS sebesar Rp. 15.600.000,-, sehingga dapat diketahui waktu balik modal dari instalasi sistem PLTS ini adalah 6,5 tahun.

In general, one of the main components used in electric power systems is a transformer. In principles, this equipment uses a magnetic process through the pairing winding where a cooling system is also applied to maintain the expected operational performance and to maintain heat transfer during the power delivery. In fact, load demand changes fluctuate depending on the behavior of energy users. This research is conducted to evaluate heat transfer in a three-phase transformer. This work also takes into the flowing current gradually based on the heat generated in the transformer. To cover these objectives, the analysis is directed to the power transformer optimization using the Artificial Salmon Tracking Algorithm (ASTA) for performing heat flow rates on-demand changes. The results obtained indicate that ASTA has a potential implementation for determining the optimal heat transfer. The demand changes have affected the power loss detected in both windings which are migrated out of heat through the cooling and fluid systems.