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Plastic waste, particularly plastic bottles, has become one of the major challenges in urban environmental management due to its increasing volume and potential to pollute ecosystems. In Bogor City, plastic waste constitutes a significant proportion of daily municipal solid waste, highlighting the need for effective and sustainable waste management models. This study aims to analyze the role of the Reduce, Reuse, Recycle Waste Processing Facility (TPS3R) in managing plastic bottle waste in Bogor City, with a case study of the Eco Techno Park at Ibn Khaldun University (UIKA) Bogor. The research employed a descriptive qualitative method using a case study approach. Data were collected through field observations, in-depth interviews with facility managers, and reviews of relevant documents and literature. The findings indicate that the TPS3R Eco Techno Park has successfully implemented the 3R principles through an integrated system supported by environmentally friendly technologies and a circular economy framework. Plastic bottle waste is managed through sorting, shredding, and recycling processes to produce value-added products, including plastic pellets, handicrafts, and construction materials. In addition, organic waste management is integrated through the cultivation of Black Soldier Fly (BSF) larvae. The facility has contributed to reducing the volume of waste sent to landfills by approximately 18%. The study implies that strengthening regulatory support, enhancing community participation, and developing circular economy-based business models are essential to ensure the long-term sustainability of waste management programs and support Bogor City's waste reduction targets.

The rapid development of information technology has created new challenges for military organizations, including the increasing accessibility of online gambling among military personnel. This study aims to analyze the optimization of mental development programs for Indonesian Navy personnel at the Naval Academy as an effort to prevent online gambling behavior. The study employed a descriptive qualitative approach using interviews, observations, documentation, and questionnaires. Data were collected from military leaders, military police personnel, mental development officers, and Naval Academy personnel. The findings indicate that mental development programs have been implemented through religious guidance, counseling, lectures, and character-building activities, which generally receive positive responses from personnel. However, several obstacles remain, including limited participation due to operational activities, rapid technological advancement, easy internet access, and the absence of specific educational materials concerning online gambling. Factors influencing personnel involvement in online gambling include low self-control, unproductive use of leisure time, environmental influences, and personal economic problems. The study concludes that mental development can effectively prevent online gambling when implemented continuously, supported by leadership involvement, digital literacy enhancement, supervision of technology use, and specific educational materials addressing the dangers of online gambling.

The rapid development of digital service platforms, particularly online motorcycle taxi services, has transformed modern economic transaction patterns, where the relationship between drivers and consumers is categorized as an ijarah (service lease) contract. However, in practice, various forms of breach of contract (wanprestasi) frequently occur and potentially harm one of the parties. This study aims to analyze the concept of the ijarah contract, identify the forms of wanprestasi, and review them based on Sharia Economic Law principles. This qualitative normative research employs a literature-based approach, utilizing secondary data from classical fiqh books, DSN-MUI fatwas, the Indonesian Civil Code, and reputable academic journals, which are analyzed descriptively-analytically. The findings reveal that breaches occur in three typologies: unilateral cancellation by consumers (ta'addi), negligence and fictitious account manipulation by drivers (taqshir and tadlis), and disproportionate cancel fee policies by platforms, indicating structural dzulm. From a sharia perspective, the settlement of wanprestasi requires compensation (ta'widh) calculated based on actual loss without riba elements, while classifying technical obstacles as force majeure under a fault-based liability approach. This study implies the need to reconstruct the digital ecosystem so that it is not only formally valid but also enforces substantive justice based on maslahah (public interest), al-‘adl (justice), mas,uliyyah (responsibility), and tawazun (proportional balance)

Land-use changes dominated by impervious surfaces in residential areas reduce the natural infiltration capacity of the soil and increase surface runoff, which may lead to flooding and waterlogging. This study aimed to design a rainwater infiltration well system as an effort to reduce surface runoff in Samudera Afroza 3 Housing Estate, Jambi City. A quantitative approach was employed through field surveys, hydrological analysis, soil permeability testing, GIS-based land-use analysis, and infiltration well design in accordance with SNI 8456:2017 and SNI 03-2453-2002 standards. Rainfall analysis was conducted using maximum daily rainfall data from 2014–2023, applying several probability distributions, with the Gumbel distribution identified as the most representative model. The results revealed that the residential area covers 8,104 m², with 91.84% of the land occupied by built-up surfaces, resulting in limited natural infiltration capacity. The average soil permeability value of 0.00024 m/s indicates favorable conditions for the implementation of infiltration wells. Based on the design calculations, 41 Type III infiltration wells are required, providing a total storage capacity of 289.665 m³ and an infiltration discharge of 0.0919 m³/s. The proposed infiltration well system is capable of reducing runoff volumes by 15.044%, 12.486%, and 11.223% for 2-year, 5-year, and 10-year return periods, respectively. Therefore, infiltration wells can be considered an effective alternative for water conservation and runoff management in residential areas.

Marriage at an early age remains widespread, especially among communities with limited education and financial resources. This study aims to analyze the impact of early marriage on harmony in household life. The research model we employed was a library research design. The approach used was descriptive qualitative through literature review, referring to scholarly sources and secondary data from reputable journals published in the last five years. Findings indicate that the mental unreadiness of both parties (husband and wife) who marry at an early age can lead to instability in household life and increase the risk of marital failure or reduced family harmony. Young couples commonly face challenges in maintaining healthy communication, making joint decisions, and coping with financial pressures, all of which contribute to domestic conflict. In addition, emotional immaturity and limited life experience are also primary causes of disharmony within the family. Therefore, there is a need to improve education and public awareness about the importance of age maturity and mental readiness before marriage in order to create stable and harmonious households. Thus, it is necessary to increase education and public awareness about the importance of age maturity and mental readiness before marriage, in order to create a stable and harmonious household.

This study discusses the concept of polygamy from the perspectives of Islamic law and positive law in Indonesia, focusing on the principles of justice and its impact on women and families. Polygamy is one of the issues in fiqh munakahat that continues to generate debate because it is considered closely related to patriarchal culture, gender inequality, and violence against women. This study aims to analyze the legal basis of polygamy in the Qur’an, the views of scholars of tafsir and fiqh regarding polygamy, as well as the regulation of polygamy in Indonesian legislation. This study employs a library research method with a normative-sociological approach. Data sources were obtained from books of tafsir, fiqh, hadith, Islamic legal literature, and laws and regulations related to marriage in Indonesia. The findings indicate that Islam permits polygamy under very strict conditions, particularly regarding the husband’s ability to act justly both materially and emotionally. However, justice in emotional aspects and affection is considered very difficult for ordinary people to achieve, as emphasized in Qur'an Surah An-Nisa verse 129. In Indonesian positive law, the primary principle of marriage is monogamy, while polygamy is only permitted under certain circumstances with administrative requirements and court approval. This study concludes that the practice of polygamy in the modern era should be understood contextually by considering aspects of public welfare (maslahah), the protection of women’s rights, family justice, and the primary objectives of Islamic law in establishing a harmonious family characterized by sakinah, mawaddah, and rahmah.             

This study aimed to increase students’ learning activeness and reduce boredom in Indonesian language lessons through the implementation of the Project Based Learning (PjBL) model for first-grade students at MI Ma’arif NU Bebekan. The research was conducted using an observation method during the learning process. The subjects of this study were first-grade students of MI Ma’arif NU Bebekan. Data were collected through observations of students’ activities, participation in learning, enthusiasm in completing projects, and responses during Indonesian language lessons. The observation results showed that the implementation of Project Based Learning had a positive impact on the learning process. Before the implementation of this model, some students appeared less active, easily bored, and less involved in classroom activities. After learning was carried out through project-based activities related to Indonesian language materials, students became more interested in participating in lessons, more confident in asking and answering questions, and more active in collaborating with their classmates to complete assignments. In addition, the learning atmosphere became more enjoyable because students were directly involved in activities connected to their daily experiences. Based on the findings, it can be concluded that the implementation of Project Based Learning was effective in increasing learning activeness and reducing boredom among first-grade students of MI Ma’arif NU Bebekan in Indonesian language lessons. This learning model can serve as an effective alternative for creating a more engaging, active, and meaningful learning experience for elementary school students.

Road improvement projects require consistency between technical planning documents and field implementation to ensure that service quality, structural performance, construction time, and user safety are achieved. This article evaluates the conformity between planning and realization in the Pangkalan-Batas Jambi road improvement project in Rawas Ulu District, North Musi Rawas Regency. The study used a descriptive-quantitative evaluative approach based on field monitoring, project technical documents, comparative quantity analysis between contract and Contract Change Order (CCO), and identification of implementation constraints. The results showed that several work items changed during construction because initial planning data did not fully capture actual field conditions. Quantities increased for drainage excavation (+18.87%), roadbed preparation (+8.99%), aggregate class A base course (+12.51%), and AC-Base (+11.98%). Conversely, reinforced pipe culverts decreased (-58.33%), unsealed aggregate base/sirtu decreased (-43.50%), and tack/prime coat volume slightly decreased (-0.47%). The time schedule showed a minor delay of -0.13% in the first week but recovered in the second week, indicating effective field coordination. Main constraints included traffic interference, limited worker visibility, and equipment visibility. The study recommends more detailed site surveys during planning, stronger traffic management, stricter occupational safety implementation, systematic progress control, and routine post-construction maintenance to maintain road service life.

Higher-order thinking skills (HOTS) are a requirement in 21st-century education, yet assessments in schools are still primarily based on lower-order thinking (LOTS) cognitive skills. This study aims to examine the concept of the Revised Bloom's Taxonomy, the characteristics of instruments based on Higher-Order Thinking Skills (HOTS), and their implementation in instrument development. This study used a qualitative approach with a heritage study method. Data were obtained from books, scientific journals, and educational policy documents related to HOTS-based assessment. Analysis was conducted through data reduction, categorization, and drawing conclusions based on their alignment with the Revised Bloom's Taxonomy framework. The results of this study indicate that cognitive levels C4-C6 in the Revised Bloom's Taxonomy serve as the primary reference in developing HOTS instruments, which can assist in developing HOTS-based instruments to measure students' higher-order thinking skills.

The governance of sand and gravel mining requires an integrated assessment of technical planning, occupational safety, environmental control, reclamation, and regulatory compliance. This study evaluated the governance of CV. Ria Bersaudara, a sand and gravel mining company located in Pasar Surulangun, Rawas Ulu District, Musi Rawas Utara Regency, using the Good Mining Practice framework. The study used a descriptive evaluative approach based on field observation, document review, indicative resource estimation, equipment productivity analysis, occupational safety and environmental risk assessment, and compliance mapping. The results show that the company has a basic legal foundation through an exploration mining permit covering 12.5 ha; however, several governance components require improvement. The indicative prospective area was approximately 2.50 ha, with an effective follow-up area of 1.80 ha and an estimated indicative resource of 21,600 m³ or 35,640 tons. Productivity analysis indicated that excavator capacity reached about 61 m³/hour, while one dump truck only transported about 10.3 m³/hour, creating a haulage bottleneck if the truck fleet is insufficient. Safety implementation was also not optimal, with personal protective equipment compliance estimated at only 55%. The study recommends validating permit documents, strengthening technical exploration data, improving drainage and sediment control, enforcing safety procedures, implementing progressive reclamation, and establishing daily operational records.

This study aims to formulate an engineering strategy for water quality management and pollution control in the Tiku Sub-watershed, North Musi Rawas Regency. The study used a descriptive approach by integrating selected technical data from a dissertation-based assessment with semi-structured interviews involving 20 key informants representing technical agencies, village and subdistrict governments, community leaders, artisanal and small-scale gold mining actors, farmers, and riverbank communities. The analysis focused on water quality status, water availability and demand, pollution sources, perceived impacts, implementation constraints, and priority interventions. The results showed that the Tiku Sub-watershed is under significant environmental pressure. The average pollution index was 6.65, indicating a moderately polluted status, while mercury, cadmium, phosphate, and ammonia were the dominant parameters of concern. Surface water availability remained relatively adequate at 45,842,699.79 m3/year, and the average Criticality Ratio was 0.266; however, the water pollution carrying capacity was poor. Interview results indicated that mercury use and processing waste from artisanal gold mining were the most urgent issue (35%), followed by land-cover change and riparian degradation. The recommended strategy combines mercury-free processing technology, alternative livelihood development, cross-sectoral supervision, riparian rehabilitation, and transparent water-quality monitoring. The findings imply that watershed engineering should integrate technical, institutional, and socio-economic interventions.

Humanitarian law plays a significant role in shaping military professionalism, particularly in developing leadership character that upholds human values during military operations. Marine Corps officers are frequently involved in operational assignments that directly interact with civilian populations, both in war operations and military operations other than war. Therefore, a comprehensive understanding of International Humanitarian Law is essential for supporting professional and ethical decision-making. This study aims to analyze efforts to optimize humanitarian law understanding in order to develop a humanistic character among Marine Corps officer cadets. The research employed a qualitative descriptive method using observation, interviews, documentation studies, and literature reviews. Data were collected from Marine Corps educational institutions and legal experts within the Indonesian Naval Academy. The findings indicate that humanitarian law understanding among officer cadets remains constrained by limited instructional time, insufficient practical simulations, and the need for stronger curriculum integration. However, humanitarian law significantly contributes to developing integrity, responsibility, empathy, respect for human dignity, and professionalism in military leadership. Optimization efforts can be achieved through curriculum enhancement, practical case-based learning, continuous legal education, leadership ethics training, and strengthening organizational culture. The study concludes that strengthening humanitarian law education is essential for producing professional, humanistic, and globally competent Marine Corps officers.

Background: Chronic Kidney Disease (CKD) patients undergoing long-term hemodialysis often experience anxiety due to therapy dependency, changes in health conditions, and uncertainty regarding the disease. Unresolved anxiety can reduce quality of life, comfort, and patient adherence to treatment. Therefore, non-pharmacological interventions are needed that are safe, easy to implement, and aligned with the patient's spiritual values. Mantram Tri Sandya has the potential to provide relaxation and psychological calm, thus helping to reduce anxiety. However, scientific evidence regarding the effectiveness of this therapy in hemodialysis patients is still limited, making this research crucial.  Purpose: The aim of this research is to determine the effect of the Tri Sandya mantra on reducing anxiety levels in CKD patients who are undergoing hemodialysis at the Buleleng Regency Regional Hospital. Methods: Pre-Experimental One Group Pre-Test & Post-Test research design with the Wilcoxon Signed Rank Test conducted at the Buleleng Regency Regional General Hospital. Data were collected using the HARS (Hamilton Anxiety Rating Scale) questionnaire sheet with Purposive Sampling technique with a sample size of 88 people. Results: The results obtained from this study were that there was a decrease in anxiety levels when given Mantra Tri Sandya therapy to CKD patients who were undergoing hemodialysis with a P value <0.001 (p<0.05). Conclusion: There is a significant effect of administering the Tri Sandy mantra on reducing anxiety levels in CKD patients who are undergoing hemodialysis at the Buleleng Regency Regional Hospital.

This study aims to determine the role of women in tourism development in Raja Prailiu Village, East Sumba Regency, and to identify the obstacles faced by women in tourism activities. This research is motivated by the importance of women's involvement in meeting family economic needs while preserving the weaving culture. This study uses a qualitative descriptive method. Data were obtained through observation, interviews, and documentation. Research informants consisted of six women who are active in tourism activities in Raja Prailiu Village. Data sources used include primary data from interviews and secondary data from books, journals, articles, and related documents. Data analysis techniques used the Miles and Huberman model which includes data reduction, data presentation, as well as drawing conclusions and verification. The results of the study show that women have an important role in tourism development, namely as weavers, craft product sellers, tour guides, and actors in preserving culture and cleanliness of the tourist environment. However, women also face various obstacles, such as increasing the number of tourists, high prices of raw materials, limited time due to dual roles, lack of English language skills, and low tourist awareness of environmental cleanliness. This research contributes to showing the importance of the role of women in tourism development and becomes a consideration for the government and the community in supporting tourism development in Raja Prailiu Village.

This study investigates the integration of digital twin technology and machine learning for predictive analysis in smart mechanical systems. The research emphasizes the role of intelligent computational frameworks in improving industrial monitoring, predictive maintenance, and operational efficiency within Industry 4.0 environments. A qualitative content analysis approach was employed by reviewing scientific literature, industrial reports, and previous studies related to digital twins, artificial intelligence, and predictive analytics. The findings indicate that digital twin architectures supported by machine learning algorithms can significantly enhance real-time monitoring, fault prediction accuracy, and maintenance optimization. The integration of IoT devices, cloud computing, and intelligent analytics also improves industrial sustainability, reduces operational downtime, and supports data-driven decision-making processes. Furthermore, the study identifies several technological challenges, including cybersecurity risks, data integration complexity, and computational limitations. Overall, the proposed intelligent digital twin framework provides a promising approach for future industrial innovation and sustainable smart mechanical system management

Dental caries is one of the most common oral health problems among young children. Preschool-aged children are highly dependent on their parents, especially mothers, for dental health care. A mother's level of knowledge is expected to influence the incidence of caries in children. Purpose: This study aims to determine the relationship between maternal knowledge and the incidence of dental caries among children at Qalby Play School, Bogor Regency. Method: This research employed a cross-sectional design with an analytic survey approach. The population consisted of all mothers and their children at Qalby Play School, totaling 30 participants, selected using total sampling. Data were collected using questionnaires to assess maternal knowledge and odontogram sheets to measure caries incidence. Data were analyzed using univariate and bivariate analysis with the Chi-square test. Result: The results showed a significant relationship between maternal knowledge and the incidence of dental caries in children, with a p-value 0,047 < 0,05. Conclusion: There is a statistically significant relationship between maternal knowledge and the incidence of dental caries in children. Therefore, it is important for parents, especially mothers, to pay close attention to their children's oral health by ensuring proper and regular tooth brushing and scheduling dental check- ups every six months.

Online transportation has become an essential component of modern urban mobility, significantly transforming the way people travel while creating new challenges related to service quality, safety, customer satisfaction, sustainability, and its impact on conventional public transportation. This study aims to examine the development of research on online transportation through a bibliometric analysis combined with a Systematic Literature Review (SLR). Data were collected from the Scopus database using the keyword "Online Transportation" and filtered using the PRISMA framework, resulting in 90 eligible articles for analysis. The bibliometric analysis was conducted using VOSviewer to identify publication trends, leading contributing countries, author affiliations, journal sources, and the most frequently occurring keywords. The findings reveal that research on online transportation remains relatively limited despite showing a gradual increase in recent years. Indonesia emerged as the country with the highest number of publications, followed by the United States, China, Japan, Malaysia, and the United Kingdom. Frequently occurring keywords indicate that online transportation research is commonly associated with traffic management, drivers, passenger safety, customer satisfaction, service quality, employment, and user loyalty. These findings suggest substantial opportunities for future studies, particularly in the areas of regulatory frameworks, sustainable transportation, traffic safety, digital technology integration, and the development of intelligent transportation systems to support more efficient, inclusive, and sustainable urban mobility.

Penelitian ini bertujuan untuk: Pertama Menganalisis Bina Pribadi Islami (BPI) terhadap kedisiplinan ibadah siswa kelas 9 SMPIT Nidaul Hikmah Salatiga dan SMPIT Izzatul Islam Getasan. Kedua Menganalisis Bina Pribadi Islami (BPI) terhadap akhlak karimah siswa kelas 9 SMPIT Nidaul Hikmah Salatiga dan SMPIT Izzatul Islam Getasan. Ketiga Menganalisis Bina Pribadi Islami (BPI) bepengaruh terhadap kedisiplinan ibadah dan akhlak karimah siswa kelas 9 SMPIT Nidaul Hikmah Salatiga dan siswa kelas 9 SMPIT Izzatul Islam Getasan. Penelitian ini menggunakan pendekatan kuantitatif dengan metode sampel jenuh atau survei. Teknik pengumpulan data dilakukan melalui kuesioner, observasi, dan dokumentasi. Penelitian ini menggunakan uji validitas dan reliabilitas untuk uji coba instrument penelitian. Analisis data menggunakan model Regresi Linier Sederhana, yang terdiri dari menganalisis data digunakan analisis deskriptif, uji asumsi klasik (uji normalitas dan heteroskedatisitas), analisis regresi sederhana (koefisien korelasi, koefisien determinasi, dan Uji t) dengan bantuan SPSS for windows versi 27. Hasil dari penelitian ini menunjukkan bahwa: (1) Tidak ada pengaruh antara Bina Pribadi Islami (BPI) terhadap kedisiplinan ibadah siswa kelas 9 SMPIT Nidaul Hikmah Salatiga dan siswa kelas 9 SMPIT Izzatul Islam. (2) Ada pengaruh positif antara Bina Pribadi Islami (BPI) terhadap akhlak karimah siswa kelas 9 SMPIT Nidaul Hikmah Salatiga dan siswa kelas 9 SMPIT Izzatul Islam Getasan. (3) Tidak ada perbedaan signifikan antara pengaruh Bina Pribadi Islami (BPI) terhadap kedisiplinan ibadah dan akhlak karimah siswa kelas 9 SMPIT Nidaul Hikmah Salatiga dan siswa kelas 9 SMPIT Izzatul Islam Getasan.

This research is motivated by the importance of implementing Standard Operating Procedures (SOP) in speed boat maintenance activities as a supporting facility for ship agency operations at PT. Sinar Pasific. The high intensity of speed boat usage makes the fleet vulnerable to damage if maintenance is not carried out regularly and according to procedures. Based on initial observations, inconsistencies in maintenance implementation, incomplete documentation, and damage to the engine, electrical systems, and hull were still found, which can disrupt company operations. This study aims to determine the implementation of SOPs, the obstacles encountered, and the efforts made to optimize speed boat maintenance at PT. Sinar Pasific. This research was conducted at PT. Sinar Pasific during the author’s Onboard Practical Training (PRADA) from August 2024 to July 2025. The research method used is a descriptive qualitative method. The data sources were obtained through direct field observation, semi-structured interviews with personnel involved in speed boat operations, and documentation studies related to fleet maintenance activities. The results show that the implementation of Standard Operating Procedures (SOP) in speed boat maintenance at PT. Sinar Pasific has been carried out but has not yet run optimally. This is indicated by inconsistent maintenance schedules, lack of supervision, and incomplete maintenance documentation. In addition, several problems were still found, such as damage to the engine, electrical systems, and speed boat hulls, which can hinder company operations. To overcome these obstacles, the company has made efforts by improving discipline in SOP implementation, conducting regular supervision and evaluation, improving maintenance documentation, and increasing technicians’ understanding of the importance of preventive maintenance so that speed boat conditions are maintained and operational activities run smoothly.

Lead (Pb²⁺) contamination in wastewater is a major environmental concern due to its toxicity, persistence, and ability to accumulate in living organisms. Adsorption using biomass-based materials has been developed as an alternative treatment method because it is efficient, economical, and environmentally friendly. This study aimed to analyze the effect of bioadsorbent dosage and contact time on Pb²⁺ removal efficiency and evaluate Pb²⁺ mass distribution using mass balance analysis in a batch adsorption system. Ramie leaf (Boehmeria nivea) was utilized as a bioadsorbent due to its lignocellulosic content, which provides active sites for metal ion adsorption. The research was conducted experimentally through bioadsorbent preparation, chemical activation, and batch adsorption using artificial Pb²⁺ solutions with variations in bioadsorbent dosage and contact time. Pb²⁺ concentrations before and after adsorption were analyzed using Atomic Absorption Spectroscopy (AAS). The obtained data were used to determine removal efficiency and Pb²⁺ distribution between the liquid phase and bioadsorbent. The results showed that ramie leaf bioadsorbent effectively reduced Pb²⁺ concentration, with the optimum condition obtained at 4 g/L bioadsorbent dosage and 90 minutes contact time, achieving 98.46% removal efficiency. Mass balance analysis indicated that Pb²⁺ ions were successfully transferred from the solution phase onto the bioadsorbent surface. These findings demonstrate that ramie leaf bioadsorbent has potential as a sustainable alternative material for heavy metal removal in wastewater treatment.