This study investigates the use of administrative ethics to increase the professionalism of public services in the West Sumatra Provincial Government Social Service. Data was collected through in-depth interviews with stakeholders and surveys of staff and service users using mixed methods (qualitative and quantitative). Research shows that the application of administrative ethics principles such as transparency, accountability and fairness significantly increases the professionalism of the apparatus and the quality of public services. Integrity, public trust, and operational efficiency of agencies can be strengthened by a strong ethical culture. In addition, this research found that continuous training, improving operational standards, and the use of information technology can help overcome problems such as employees' lack of understanding of administrative ethics and weaknesses in supervisory systems. Policy recommendations are made to encourage public services that are more responsive, professional and in line with community expectations.
 

Speech delays are a developmental challenge often experienced by young children, which can affect their communication skills and social aspects. This research aims to explore the effectiveness of applying visual and audio media in improving the language skills of young children who experience speech delays. The visual media used are picture flashcards, interactive videos and picture story books, while the audio media is children's music, voice recordings and regional songs. This research was conducted at a language therapy center in Indonesia with a case study approach on 10 children aged 3–5 years. The research results show that the combination of visual and audio media can significantly increase children's attention, vocabulary understanding and speaking abilities. The use of local culture-based media such as regional songs also has a positive impact by creating a sense of relevance and emotional closeness. In addition, active involvement of parents in this process increases the success of the intervention. This research recommends consistent application of visual and audio media as part of local context-based therapy to support the language development of children with speech delays. 

Cellular networks play an important role in modern life with the availability of flexible connectivity in various places, fast internet access and communication services and are a reference for innovation and economic growth. However, the complexity of cellular networks requires careful planning and management, this is to ensure a reliable and safe service. The method used in designing cellular networks is the simulation method, namely by using Cisco Packet Tracer software and literature studies from various references. The results of cellular network simulations using this software can show superiority in designing, configuring and testing cellular networks. Apart from that, this software also provides complete features to meet several needs, starting from the process of creating a network topology, configuring IP addresses, activating DHCP services and HTTP services, to testing connections using PDU samples between smartphone devices and servers. With the successful connection test, it can be concluded that the settings and services on the cellular network have been tested and verified using Cisco Packet Tracer. This has shown that the software used is very effective in simulating and testing cellular networks.