Hydroxyapatite (HAp) is a biomaterial containing calcium phosphate with the chemical formula which is similar to the structure of human bone, so it is good for the purpose of healing human bones and teeth. HAp synthesis has several methods that can affect the results of HAp synthesis, such as the method of mixing CaO with phosphate, namely mixing with ultrasonic machines and magnetic stirrers. However, the discussion about the difference of HAp results with the mixing method of ultrasonic machine and magnetic stirrer is still rarely done. Therefore, it is important to examine and compare the characteristics of HAp synthesized by ultrasonic and magnetic stirrer mixing. The result of XRD test shows that HA1 has a purity of weight percentage (wt.%) of HAp crystal of 99.8%, while HA2 has a weight percentage (wt.%) of HAp crystal of 97.7%. For the FTIR test results of both specimens detected the presence of phosphate groups, and hydoxide, where both are the basic form of hydroxyapatite. Carbonate groups were also detected in the test, but it cannot be said to be bad because carbonate is a natural substitute for phosphate. 

This study aims to analyze the extent to which artificial intelligence (AI) technologies are utilized by government institutions and companies in public relations (PR) practices, and to relate these findings to crisis management strategies. Using a descriptive quantitative approach, data were collected through surveys and interviews involving 23 institutions, consisting of 19 government agencies and 4 private companies. The results show that ChatGPT is the most widely used AI tool (56%), followed by Gemini (34%) and QuillBot (14%). Most other tools showed low usage rates, with a high percentage falling under the “unknown” category, indicating limited information and awareness regarding AI technologies within PR environments. These findings have strategic implications in the context of crisis management, as the speed and accuracy of information dissemination are highly dependent on technological adaptability. The integration of AI tools into public communication systems can serve as both a preventive and responsive solution to reputational and operational crises. Therefore, policies are needed to enhance digital literacy and provide technical training on AI utilization for PR practitioners in both the public and private sectors.

This study examines the integration of Islamic values in the development of science and technology in the Society 5.0 era through a qualitative literature study. The research analyzes three main aspects: (1) the concept of tadabbur alam (contemplation of nature) in the Qur'an as an epistemological foundation, (2) critique of secular science from a tawhidic paradigm perspective, and (3) implementation models in Islamic higher education. Findings reveal that the Qur'an provides a comprehensive epistemological framework connecting empirical observation, rational reasoning, and spiritual internalization. Case studies at UIN Bandung and UIN Surabaya demonstrate successful curriculum integration models such as "Revelation Guides Science" and "Integrated Twin Towers." The study concludes that Islamic epistemology offers solutions to contemporary challenges including ecological crises, technological ethics, and meaning crises in modern science. Strategic recommendations are proposed for policy makers, Islamic universities, and technology developers to operationalize this integration. Keywords : Islamic epistemology, Ccience integration, Society 5.0, Tadabbur alam, Tawhidic paradigm

This study investigates how data visualization helps retail companies make Business Intelligence (BI)-based decisions. The study processed one year of sales data with a quantitative descriptive approach to find seasonal patterns, performance by region, and customer consumption tendencies. The analysis results show that BI software such as Microsoft Power BI can visualize data more easily and accelerate understanding of business performance. Strategic decisions such as promotional planning and product inventory management are more effective with interactive visualization, which allows decision makers to see data in a more understandable way. The study found that data visualization in BI systems can help retail businesses make better decisions. These results show the importance of incorporating BI into a company's operational processes and using interactive visualization to improve overall business performance.

This article provides an in-depth overview of the relationship between philosophy and sources of business law in establishing ethical and fair business practices, with an emphasis on Islamic principles. Using a normative approach through library research, the article highlights various elements that form the foundation of business law, including legal theories, regulations, and existing legal practices, while also incorporating Islamic perspectives on justice, fairness, and ethics in business. Additionally, it explains how sources of law such as written law (statutes), customary law, jurisprudence, doctrines, and Islamic legal principles (fiqh) play a crucial role in creating a strong legal framework.Keywords: Business Law, Islamic Law, Islamic Business Ethics, Business and Law, Fiqh (Islamic Jurisprudence)

Pesantren merupakan lembaga pendidikan Islam yang memiliki peran penting dalam pembentukan karakter dan moral peserta didik. Seiring perkembangan zaman, pesantren dituntut tidak hanya fokus pada aspek pendidikan keagamaan, tetapi juga mampu mandiri secara ekonomi untuk mendukung keberlangsungan program-programnya. Penelitian ini bertujuan untuk mengkaji bagaimana Pesantren Awwalu Ihya'i Daril Amanah (AIDA) membangun perekonomian mandiri, serta strategi yang dapat diterapkan guna mengembangkan usaha yang sudah ada. Penelitian ini menggunakan metode wawancara dengan pengurus pesantren yang bertujuan untuk memperoleh data dan informasi terkait biografi pesantren dan sistem perekonomian yang ada di pesantren, serta melakukan observasi untuk memperoleh data dan informasi secara langsung mengenai kondisi nyata di lapangan guna mendukung data yang diperoleh berdasar hasil wawancara dalam penelitian. Berdasarkan hasil wawancara dan observasi lapangan diperoleh bahwasanya salah satu upaya pesantren dalam mewujudkan kemandirian di bidang ekonominya adalah pemanfaatan lahan pesantren yang disewakan kepada usaha mikro, kecil, dan menengah (UMKM) yang mana ditemukan bahwasanya usaha ini dapat meningkatkan pendapatan pesantren dan memperkuat hubungan sosial-ekonomi dengan masyarakat sekitar. Analisis SWOT digunakan untuk menentukan kekuatan, kelemahan, peluang, dan ancaman dari sistem keuangan yang sedang beroperasi. Untuk memaksimalkan potensi lahan yang belum dimanfaatkan, studi ini juga menyarankan pembentukan toko buku dan toko percetakan serta pembangunan pom mini. Hasil kajian menunjukkan bahwa ada potensi besar untuk mendukung kemandirian ekonomi pesantren dan memiliki efek positif pada komunitas pesantren dan masyarakat sekitarnya.

Durability is defined as a measure of a rock's resistance to weathering and disintegration when the rock undergoes weathering processes over a short period of time. The susceptibility of rocks to disintegration is related to their low durability. Rock durability is often measured using the slake durability test. The slake durability test is widely used to assess physical changes resulting from wetting-drying processes (Franklin and Chandra, 1972). Therefore, slake durability testing is conducted to understand the weathering of rocks caused by heat and water, particularly clay stones which are one of the constituent rocks on a slope. The sampling location is around Sanga-sanga and Muara Badak. Sampling was conducted with coordinate points and the Balikpapan and Kampungbaru formations. The claystone samples taken were then brought to the Mineral and Coal Technology Laboratory of the Engineering Faculty of Mulawarman University for Slake Durability tests. In this study, the lowest index value obtained was 45.7% and the highest value was 93%, indicating high to very high durability. The difference in the durability index values of claystone at the research locations indicates the presence of variables that can affect the slake durability index values of the claystone in the Balikpapan and Kampungbaru formations, including grain size and mineral content as well as geological conditions at the research site. Based on the results of the claystone durability tests, the durability index value (Id2) was obtained, indicating that the sandstone at the research location falls into the classification of high to low.

The management of extracurricular activities, particularly Scouting, plays a vital role in shaping students’ character, discipline, and sense of responsibility. To ensure optimal and sustainable implementation, a structured and systematic student management system is required within the formal educational environment. This study aims to explore how student management is implemented at MTsN 17 Jombang, how Scouting activities are carried out, and their contribution to improving the quality of Scouting extracurricular programs. This research employs a qualitative approach with a case study method. Data collection techniques include observation, interviews, and documentation. The data were analyzed through the processes of reduction, presentation, and conclusion drawing, with data validity ensured through source, time, and technique triangulation. The findings indicate that student management plays a strategic role in the planning, organizing, implementation, and evaluation of Scouting activities. Consistent and well-directed implementation results in activities that are both beneficial and enjoyable, and positively contribute to students’ character development. The success of these activities is supported by several factors, including the support of the principal, Scout leaders, availability of facilities, and student motivation. Effective student management has been proven to enhance the quality of extracurricular activities and support the achievement of character education goals.

The global expansion of ultra-processed meat products (e.g., sausages, nuggets) faces dual challenges: microbiological safety risks from conventional thermal processing and rising consumer demand for clean-label, nutritious options. High-Pressure Processing (HPP) emerges as a promising non-thermal technology to address these concerns by inactivating pathogens while preserving sensory and nutritional quality. However, its industrial adoption is hindered by significant energy efficiency and scalability constraints. This systematic literature review synthesizes recent research to critically analyze these barriers. Methodologically, we conducted a Systematic Literature Review (SLR) using databases such as Scopus, ScienceDirect, Web of Science, and PubMed, focusing on studies related to High-Pressure Processing (HPP) applications in ultra-processed meats. Our analysis reveals that HPP consumes 2.5–3.2 kWh/kg up to 26× more energy than thermal pasteurization primarily due to hydraulic system demands and adiabatic heat dissipation during batch cycling. Scalability limitations stem from batch-based processing (3–7 min/cycle), vessel size constraints (<500 L), and capital costs reaching $2.5 million per unit, resulting in only 18% adoption by large-scale manufacturers. Energy recovery inefficiencies and product matrix variations (e.g., lipid-protective effects in emulsified meats) further exacerbate these challenges. Emerging solutions include semi-continuous systems (35% throughput increase), pulsed HPP protocols (18% energy reduction), and solar-hybrid installations (40% emission cuts), though economic viability remains problematic. We conclude that while HPP offers unparalleled safety and quality benefits, its scalability and energy intensity require coordinated innovations in process engineering, renewable energy integration, and cooperative industry models to achieve sustainable implementation.

This research analyzes the application of Voice of Customer (VoC) in Customer Relationship Management (CRM) strategies in leading Indonesian digital platforms, namely Tokopedia and Gojek. In the competitive digital era, the company's ability to understand and respond to customer expectations is crucial for maintaining relevance and competitiveness. CRM, as a customer interaction management strategy, is significantly strengthened by VoC, which involves a systematic process to capture customer feedback to understand their expectations and perceptions of products, services, and brands as a whole. Using a qualitative approach and descriptive analytical methods, this study utilizes secondary data from various reliable sources. Empathy Map is used to map the customer experience based on "Think & Feel", "See & Observe", "Say & Do", and "Hear & Listen". Results show both companies commit to VoC for service development, integrating digital channels for feedback, and applying customer-centricity. Tokopedia focuses on shopping experience and product quality with structured, long-term VoC. Gojek emphasizes service timeliness and partner professionalism with direct, adaptive VoC. Consistent VoC enables proactive and predictive CRM. This research contributes to CRM literature in Indonesian digital companies.