Drinking water is a basic human need that must meet health requirements to be suitable for direct consumption without causing health risks. Drinkable water must be free from various contaminants, both physical, chemical, and microbiological that can harm the human body. One of the sources of drinking water that is widely used by the community is refillable drinking water (DAMIU), which is now growing due to its affordable price and ease of access. However, the water quality from DAMIU is often a concern due to potential contamination due to sanitation that does not meet standards. This study aims to analyze the sanitary conditions of the refillable drinking water depot (DAMIU) and assess the quality of drinking water based on physical, chemical, and microbiological parameters in the working area of the Punti Kayu Health Center, Palembang. A total of 15 DAMIU are the object of research that are examined through laboratory tests and direct observation of the sanitary conditions and equipment of the depot. The results showed that all DAMIU (100%) had met the general sanitation requirements, such as room cleanliness, equipment, and workers. However, microbiological testing found that 33.4% of the water samples contained E. coli and Coliform bacteria, indicating the presence of contamination. In addition, all samples (100%) did not meet the ideal drinking water pH requirements, and as many as 40% of the samples had aluminum content that exceeded the threshold set by the Indonesian Minister of Health. From these findings, it can be concluded that although the sanitary conditions of DAMIU are relatively good, the quality of the drinking water produced still requires serious attention.

Motor development in infants is a crucial process that occurs gradually and follows the principles of age-appropriate development. Each fundamental motor stage—such as tummy time, rolling over, sitting, crawling, standing, and walking—must be passed through sequentially to ensure optimal motor concept development. Skipping or insufficient stimulation of these stages may lead to difficulties in understanding functional body movements. One of the main causes of delayed motor development includes a lack of motor stimulation time, overly restrictive parental supervision, and low levels of motivation and stimulation provided to the child. Tummy time, or placing the baby in a prone position while awake, is a proven effective form of motor stimulation that supports the development of the baby’s neck, back, and arm muscles. This activity also assists infants in reaching subsequent developmental milestones such as rolling over and crawling. This Community Service Program (PkM) was conducted at the Physioroom Clinic and was attended by 15 mothers with infants aged 3 to 6 months. The objective of the program was to enhance mothers’ knowledge regarding the importance of tummy time in supporting infant motor development. The program's implementation included educational sessions, tummy time practice demonstrations, group discussions, and interactive Q&A sessions. To measure the increase in participant knowledge, a pre-test and post-test were administered before and after the activity.The results of this PkM activity showed an increase in the average knowledge score from 6.4 in the pre-test to 8.6 in the post-test. This improvement demonstrates the program’s effectiveness in educating mothers about the benefits of tummy time for infant motor development. It is hoped that the mothers will consistently apply this stimulation at home to optimally support their children's growth and development.

This study examines the effectiveness of implementing a democratic classroom management model in enhancing student learning motivation at Jambu Public Elementary School 3. A descriptive qualitative approach was employed, with data collected through direct classroom observations and interviews involving teachers and students. The aim was to understand how democratic principles applied in classroom settings could influence students’ motivation, behavior, and engagement in learning activities. The findings reveal that adopting democratic leadership in classroom management creates an inclusive, respectful, and participatory learning environment. Students are encouraged to express opinions, collaborate in decision-making, and take ownership of their learning process. This approach significantly enhances intrinsic motivation, responsibility, and student independence. It also helps reduce passive behavior and fosters a sense of belonging and self-worth among students. The results are in line with several prominent educational theories. According to Self-Determination Theory (Deci & Ryan), autonomy and relatedness are key drivers of motivation, which are facilitated through democratic practices. Vygotsky’s Social Development Theory emphasizes the role of social interaction in learning, which is actively promoted in this model. Carl Rogers’ humanistic approach also supports the creation of a learning climate centered on empathy and student potential, while Rudolf Dreikurs’ Adlerian classroom model advocates for respectful teacher-student relationships and cooperative behavior. Overall, the implementation of a democratic classroom management model is considered effective in promoting both academic achievement and character development at the elementary level. The study recommends broader application of this model in primary education settings to support holistic student growth and to foster a learning culture rooted in mutual respect, responsibility, and student agency.
 

The evolution of computer architecture has given rise to two main approaches: RISC (Reduced Instruction Set Computer) and CISC (Complex Instruction Set Computer). These architectures differ significantly in terms of instruction design, efficiency, and performance. This study aims to analyze the performance and efficiency of RISC and CISC in the context of computer architecture organization. The methodology includes a literature review, comparative analysis, and performance evaluation based on parameters such as processing speed, power consumption, and design complexity. The results indicate that RISC tends to be more efficient in terms of power consumption and execution speed for simple instructions, while CISC excels in handling complex instructions with fewer lines of code. The findings of this study can serve as a reference for the development of modern computer architectures that balance performance and efficiency.

Penelitian ini bertujuan untuk merancang dan membangun sistem informasi inventaris berbasis web di Laboratorium Komputer Universitas Dharmas Indonesia (Undhari). Sistem ini dibuat untuk mempermudah proses pencatatan, pemantauan, dan pelaporan data barang di laboratorium. Sebelumnya, pengelolaan data dilakukan secara manual, yang seringkali menimbulkan kesalahan dan memperlambat proses pencarian data. Dengan adanya sistem berbasis web, pengguna dapat mengelola data inventaris seperti stok barang, barang rusak, peminjaman, dan laporan dengan lebih efisien. Penelitian ini menggunakan metode Waterfall, yang terdiri dari tahapan analisis kebutuhan, perancangan sistem, implementasi, pengujian, dan pemeliharaan. Sistem dikembangkan menggunakan bahasa pemrograman PHP dengan framework CodeIgniter serta basis data MySQL. Hasil dari penelitian ini adalah aplikasi yang dapat diakses secara lokal oleh admin dan kepala laboratorium. Sistem telah diuji menggunakan metode blackbox dan terbukti berjalan sesuai fungsinya. Dengan adanya sistem ini, pengelolaan barang di laboratorium menjadi lebih rapi, terstruktur, dan memudahkan proses pelaporan. Selain itu, sistem ini juga membantu mengurangi penggunaan kertas dan meminimalkan kesalahan dalam pencatatan data inventaris.

The rapid growth of e-commerce requires innovative solutions to enhance consumer engagement and overcome online shopping limitations. This research analyzes the impact of Augmented Reality (AR) technology on consumer purchase intentions in e-commerce through a quantitative approach involving 150
AR users. Using PLS-SEM analysis, this study examines the relationships between AR characteristics (interactivity, visual quality, novelty, informativeness) and consumer perceptions (enjoyment, usefulness, hedonic value) and their effects on satisfaction, attitude, and purchase intention. Results indicate that visual quality and informative aspects of AR most significantly influence consumer perceptions, while enjoyment  and  hedonic  value  significantly  affect  consumer  satisfaction  and  positive  attitudes.  These
findings provide guidance for e-commerce practitioners to balance practical functionality with engaging experiences in developing AR applications as an effective marketing strategy

Management of medical Hazardous and Toxic (B3) waste is a major challenge in the health and environmental fields. PT Ubersari Kertalangu, as a company operating in the waste and environmental management sector, requires a structured company architecture system to support B3 medical waste management activities safely, efficiently and in accordance with regulations. This research designs a TOGAF-based corporate architecture planning method that is integrated with the ISO 31000 risk management approach. The results show that this integrative model is able to increase waste tracking accuracy, mitigate environmental and legal risks, as well as company operational efficiency..
 
 

This study aims to analyze the influence of live streaming and content quality on purchase intention for Credifox products on TikTok Shop, both partially and simultaneously. The research employs a quantitative method with a non-probability sampling technique, involving 100 respondents. Data analysis was conducted using statistical quantitative methods and multiple linear regression with the aid of SPSS 25 software. The findings indicate that, partially, live streaming significantly influences purchase intention, with a t-value of 4.571 > t-table 1.985 and a significance level of 0.000 < 0.05. Similarly, content quality also has a significant influence on purchase intention, as shown by a t-value of 3.152 > t-table 1.985 and a significance level of 0.002 < 0.05. Simultaneously, live streaming and content quality have a positive and significant influence on purchase intention for Credifox products on TikTok Shop, with an F-value of 74.834 > F-table 3.100 and a significance level of 0.000 < 0.05.

This research aims to examine the application of business ethics in Islam, particularly moral principles in muamalah transactions, as well as the challenges faced in its implementation in the modern era. Using a descriptive qualitative approach based on a literature study, this research highlights key values such as honesty, openness, trustworthiness and responsibility as the foundation of Islamic business ethics. The case study of Toko Roti Gembul in Pontianak shows how these principles can be applied in the business world. The results also reveal various challenges, such as a lack of understanding of sharia concepts, weak supervision, and not optimal integration of Islamic values in business strategies. Al-Ghazali's thoughts on positive motivation and business as fardhu kifayah also strengthen the urgency of ethics in building a fair and sustainable economic system. This research is expected to be an academic and practical contribution in encouraging the application of Islamic values in modern business activities.Keywords: Islamic business ethics, morals, muamalah, transactions, sharia principles.

Candlenut shell is an organic waste that has a hard texture and has a high carbon element. The amount of candlenut shell produced from each processing of candlenut seeds is very large but has not been optimally utilized. For this reason, an effort is needed to utilize candlenut shells so that they do not become waste. In the manufacture of hazelnut shell briquettes, hazelnut shells are carbonized at 500 °, sifted with mesh 30 and 100 sieves, given a compressive load of 3 kg, 4 kg, 5 kg and 5.5 kg, the adhesive on hazelnut shell briquettes is starch and drying is carried out with a drying oven for 3 hours at a temperature of 80 °. The purpose of this study was to determine the effect of variations in pressure and particle size on the quality of hazelnut shell briquettes when viewed from the combustion rate and calorific value. The methodology used in this research is experimentation on hazelnut shell briquettes, testing hazelnut shell briquettes including testing water content, testing ash content, burning rate and calorific value of briquettes. From the results of the research on hazelnut shell briquettes with variations in pressure and mesh, the highest calorific value in hazelnut shell raw material briquettes is in the 5.5 Kg pressure specimen on mesh 30, namely 9855.18 Cal/gram and the bomb calorimeter test results are 7008.03 Cal/gram with an error rate of 24.40%, the higher the pressure will produce a higher calorific value as well. The highest combustion rate value is in hazelnut shell briquettes at a pressure specimen of 3 Kg mesh 100 with a value of 1.2 grams/minute the smaller the particle size, the higher or faster the combustion rate.