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Agustin, Nur; Mahmudah, Nur Aini; Purnomo, Panji

JITIPARI (Jurnal Ilmiah Teknologi dan Industri Pangan UNISRI) 2026 Universitas Slamet Riyadi Surakarta

Wheat has limited nutritional content, therefore fortification with other ingredients is required to complement these nutrients, one of which is fortification with pineapple peel flour and chicken bones in noodle products. Thus, this study was conducted to investigate the impact of adding chicken bone and pineapple peel flours on the characteristics of wheat flour noodles, with the goal of developing a product enriched in fiber and minerals, and exhibiting acceptable sensory qualities. The research design used a completely randomized design (CRD) with 2 experimental factors, namely pineapple peel flour concentration (0%,3%,5%) and chicken bone flour concentration (0%,5%,10%) with triplicate replication. Based on the optimal treatment by Zeleny method, sample N1T3 emerged as the most favorable formulation. This sample exhibited the following chemical profile: a moisture content of 8.77%, an ash content of 4.52%, a protein content of 14.45%, a fat content of 1.52%, and a fiber content of 0.4%. Furthermore, sensory evaluation of Sample C yielded scores of 3.11 for color, 3.11 for aroma, 3.00 for taste, 2.89 for texture, and 2.89 for overall acceptance.

Oktaviano, Oktaviano; Eddy Ibrahim; Bochori, Bochori

Jurnal Riset Rumpun Ilmu Teknik 2026 Pusat riset dan Inovasi Nasional

Mining of rocks, particularly andesite, in East OKU Regency provides significant economic contributions but generates environmental impacts that require rehabilitation through reclamation and post-mining management. This study aims to evaluate the compliance level of Production Operation Mining Business License (IUP OP) holders with these obligations and to identify challenges in their implementation. A descriptive quantitative and qualitative approach was employed, with primary data collected through interviews and field observations related to reclamation and post-mining plans, as well as the placement of guarantees. Secondary data included IUP licensing documents, legislation, and guidance letters from the Energy and Mineral Resources Office of South Sumatra Province. Quantitative analysis categorized compliance levels, while qualitative analysis examined challenges and guidance strategies. The results indicate variations in IUP OP holders’ compliance; some have prepared documentation and placed guarantees, but delays and lack of continuity were observed. Major challenges include profit-oriented approaches, limited technical and environmental understanding, and limited permit duration. Guidance strategies, supervision, guarantee management, provision of technical experts, and community empowerment proved essential. These findings have implications for enhancing compliance, sustainable post-mining planning, and responsible mining practices.

Marshanda Febriana; Nova Zairina Lubis; Sufitni Sufitni; Tengku Helvi Mardiani

Jurnal Kesehatan dan Kedokteran 2026 Lembaga Pengembangan Kinerja Dosen

Acne vulgaris (AV) is a common dermatological condition affecting adolescents and young adults, with multifactorial causes including hormonal influences, increased follicular keratinization, excessive sebum production, and colonization by Cutibacterium acnes. External factors, particularly skincare behavior, are also considered to play an important role. The use of skincare products that are unsuitable for skin type or contain comedogenic ingredients such as mineral oil, lanolin, and certain silicones may clog pores and exacerbate acne. This study aimed to analyze the relationship between skincare product selection and usage behavior, types of skincare products used, and frequency of use with the occurrence of acne vulgaris among female medical students of the Faculty of Medicine, Universitas Sumatera Utara, cohorts 2022–2024. An analytical observational study with a cross-sectional design was conducted. Primary data were collected through an online questionnaire, while secondary data were obtained from the student directory. A total of 90 respondents were selected using stratified random sampling. Data analysis was performed using the Chi-square test. The results showed a significant association between skincare product selection and usage behavior and the occurrence of acne vulgaris (p = 0.043), as well as between the type of skincare products used and acne incidence (p < 0.001). However, no significant relationship was found between the frequency of skincare product use and acne vulgaris (p = 0.116). These findings indicate that appropriate product selection and type are more influential in acne development than usage frequency.

Rima Miranti; Anik Purwati

Jurnal Praba : Jurnal Rumpun Kesehatan Umum 2025 STIKES Columbia Asia Medan

Early mobilization is an important component of postpartum midwifery care to prevent complications, accelerate physical recovery, and improve maternal comfort after delivery. However, not all mothers are able to perform early mobilization optimally due to fatigue, pain, and decreased energy after delivery. Sukari date palm juice (Extractum Phoenix dactylifera) is known to contain simple carbohydrates, minerals, and bioactive compounds that have the potential to increase energy and accelerate maternal recovery. This study aims to analyze the effect of consuming Sukari date palm juice on accelerating early mobilization of postpartum mothers from day 1 to day 3 in the working area of ​​the Sikui Community Health Center (UPT). The study used a quasi-experimental design with a pretest–posttest control group approach. The study sample consisted of 30 postpartum mothers divided into an intervention group (n=15) and a control group (n=15). Early mobilization ability was assessed based on the time the mother was able to sit, stand, and walk. The results showed that postpartum mothers in the intervention group experienced a significant acceleration in early mobilization compared to the control group, particularly in walking ability, with a time difference of up to 8–12 hours faster. The results of the Mann–Whitney statistical test showed a significant effect of date palm juice consumption on the acceleration of early mobilization (p < 0.001). Thus, Sukari date palm juice has been proven to be effective in accelerating early mobilization and can be recommended as a supporting nutritional intervention in postpartum midwifery care.

Putu Primantari Vikana Suari; I Dewa Ayu Angelina Pradnyawati; I Gede Andy Andika Parahita; Nelson Darma Effendi; Kurnia Wardani Miftha Huljanah +1 more

Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam 2025 Pusat riset dan Inovasi Nasional

The discharge of surfactant-laden wastewater from the rapidly expanding laundry industry poses significant environmental risks, especially in densely populated urban areas. While constructed wetlands (CWs) and Eco-Enzyme technology have shown promise for surfactant remediation, their standalone application requires long hydraulic retention times (HRTs), limiting practical implementation. This study evaluated the efficacy of a novel integrated system combining a subsurface constructed wetland (SSFCW) with fruit peel-derived Eco-Enzyme to treat synthetic laundry wastewater. Over a 6-day treatment period, the combined system achieved a remarkable surfactant removal efficiency of 99.63%, reducing the concentration from 225 mg/L to 0.835 mg/L—well below the regulatory threshold of 3 mg/L. The synergistic degradation mechanism involves enzymatic hydrolysis via Eco-Enzyme lipase and protease activity, complemented by microbial mineralization in the wetland rhizosphere. This system maintains optimal environmental conditions, with a stable pH of 6.85-7.32 and a temperature of 30.9-35.2°C, supporting robust biological activity. These findings demonstrate that the integrated Eco-Enzyme/SSFCW system overcomes the limitations of conventional HRT approaches, offering a highly efficient, sustainable, and practical decentralized wastewater treatment solution for the laundry industry.  

Rizkiya Pratiwi Musa; Sulistiyah Sulistiyah

The Journal General Health and Pharmaceutical Sciences Research 2025 LPPM STIKES KESETIAKAWANAN SOSIAL INDONESIA

Background: Sectio Caesarea (SC) surgery causes an incision wound in the abdomen, requiring a complex tissue healing process. Nutrition is a primary systemic factor supporting cell regeneration and new tissue formation through the intake of protein, vitamins, and minerals. However, many postpartum mothers still practice dietary restrictions due to misconceptions about the wound healing process. Objective: To determine the relationship between nutritional fulfillment and wound healing duration in post-SC patients at Prof. Dr. R.D. Kandou General Hospital, Manado. Methods:This quantitative research used an observational analytic design with a cross-sectional approach. The sample consisted of 20 postpartum mothers after SC, selected using purposive sampling technique. Research instruments included a questionnaire and an observation sheet. Data were analyzed using Fisher's Exact Test (α=0.05). Results: The majority of respondents (55%) had good nutritional fulfillment, and 60% of respondents experienced rapid wound healing. Statistical test results showed a p-value = 0.005 (p < 0.05), indicating a significant relationship between nutritional fulfillment and wound healing duration. Respondents with good nutrition had a rapid wound healing percentage of 90.9%, while respondents with poor nutrition had a slow wound healing percentage of 77.8%. Conclusion: Adequate nutritional fulfillment plays a crucial role in accelerating the wound healing process after Sectio Caesarea surgery.

Susi Turti; Adi Nur Rahman

International Journal of Law, Crime and Justice 2025 Asosiasi Penelitian dan Pengajar Ilmu Hukum Indonesia

This study examines the critical role of expert opinions from the Ministry of Energy and Mineral Resources (ESDM) during the investigation phase in uncovering gold mining without permit (PETI) crimes under Article 120 of the Indonesian Criminal Procedure Code (KUHAP) in West Kalimantan. The research employs a normative-empirical approach, analyzing legal provisions, government reports, and judicial practices to assess how ESDM experts contribute to establishing the material truth of PETI cases. Findings reveal that expert opinions are indispensable for verifying the absence of permits, assessing environmental damage, and quantifying state losses, thereby strengthening evidentiary frameworks for prosecutors and judges. However, challenges persist, including coordination gaps between law enforcement and ESDM, insufficient technical capacity among investigators, and potential threats to expert independence. The study concludes that optimizing the use of ESDM expertise is not merely procedural but strategic for effective, accountable, and just enforcement against PETI, which remains a significant threat to national resource sovereignty and environmental sustainability.

Ulan Davinci Putri; Arny Try Kartinawanty

Jurnal Ilmu Kesehatan 2025 Lembaga Pengembangan Kinerja Dosen

Background: Oral health is an important indicator of overall health, well-being, and quality of life. According to the WHO, oral health is a state of freedom from various diseases and conditions, including dental and oral diseases that limit an individual's ability to bite, chew, smile, speak, and psychosocial well-being. Therefore, it is necessary to maintain oral hygiene as an effort to improve oral health. Case report: A 45-year-old man came to Soelastri General Hospital complaining of a large cavity in his upper left tooth. The tooth had been painful for about a year and had not undergone any treatment.Extraoral examination revealed a symmetrical face. Clinical examination of the maxillary left first premolar revealed a large cavity on the distoocclusal surface with pulpal depth.  Discussion: Perforations can be treated through cavity access; the prognosis depends on the elimination and prevention of infection in the perforation area and the choice of material. The success of perforation closure management is influenced by several factors, including the timing of perforation closure, the choice of material used, the location of the perforation, and adequate perforation closure. Conclusion: Case of maxillary left premolar with diagnosis of pulp necrosis which experienced lateral perforation and the area was closed using MTA, then root canal treatment.  

Ardian Saputra; Windhu Nugroho; Henny Magdalena; Agus Winarno; Albertus Juvensius Pontus

Venus: Jurnal Publikasi Rumpun Ilmu Teknik 2025 Asosiasi Riset Ilmu Teknik Indonesia

Coal quality must be controlled from the pit area to the ROM stockpile to ensure compliance with market specifications. However, hauling and stockpiling processes often lead to changes in coal characteristics. This study aims to analyze variations in proximate parameters between coal from Pit B1 and ROM Stockpile Km4 at PT Trisensa Mineral Utama and to identify factors contributing to these changes. The methodology includes field sampling at both locations, sample preparation based on ASTM standards, and laboratory testing of inherent moisture, residual moisture, ash content, volatile matter, and fixed carbon. The results indicate that coal undergoes quality changes after being stored in the stockpile, marked by a decrease in inherent moisture of 2.54% (from 17.64% to 15.10%), a decrease in residual moisture of 1.42% (from 17.17% to 15.75%), a slight reduction in ash content of 0.16%, a decline in volatile matter of 0.28%, and a reduction in fixed carbon of 0.18%. These changes are influenced by field conditions, material contamination during mining, rainfall, coal porosity, and handling activities at the stockpile. The findings highlight the need for improved sampling management, better surface water control, and stricter material handling procedures to minimize coal quality degradation.

Nugraha, Arief Pambudi

Venus: Jurnal Publikasi Rumpun Ilmu Teknik 2025 Asosiasi Riset Ilmu Teknik Indonesia

Mine disposal materials such as tailings, overburden, and waste rocks are critical components in mining operations that require comprehensive understanding of their geotechnical properties to ensure stability and safety of storage facilities. This literature review aims to analyze the role of particle gradation and mineralogical composition in determining shear strength and compressibility of mine disposal materials, with particular focus on nickel mining. A sistematic literature review method was employed by analyzing 30 scientific publications from 2019-2025 obtained from various academic databases. The review findings indicate that particle size distribution (gradation) has significant influence on shear strength and compressibility, where materials with coarser gradation and higher coefficient of uniformity (Cu) exhibit greater shear strength and lower compressibility. Mineralogy, particularly clay mineral content, increases cohesion and microporosity but also increases compressibility under loose conditions. Studies on nickel mine waste demonstrate that ferronickel slag possesses favorable drainage characteristics suitable for rockfill material, while tailings require strict gradation control. In conclusion, comprehensive characterization integrating gradation parameters (Cu, Cc, D50) with mineralogical analysis (XRD, XRF) is essential for predicting mechanical behavior of mine disposal materials and designing safe storage facilities.

Salsabila Rahman; Ardi Mustakim

Jurnal Ventilator: Jurnal riset ilmu kesehatan dan Keperawatan 2025 Stikes Kesdam IV/Diponegoro Semarang, Indonesia

Aloe vera (L.) Burm.f. is a bioactive plant containing polysaccharides, anthraquinones, sterols, vitamins, minerals, and glycoproteins, contributing to wound healing through anti-inflammatory, antibacterial, antioxidant mechanisms, fibroblast stimulation, and accelerated re-epithelialization. This study employed a systematic literature review (SLR) of 37 peer-reviewed articles (2018–2025) to evaluate the biochemical potential of Aloe vera and its application as a basis for modern pharmaceutical topical formulations. Results revealed that acemannan increased fibroblast proliferation by up to 200, modulated TGF-1, enhanced type I and III collagen deposition, and accelerated re-epithelialization. Anthraquinones such as aloin and emodin exhibited antibacterial activity against Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli. Nanoemulsion and nanogel formulations improved transdermal penetration up to threefold compared to conventional gels. These findings highlight Aloe vera’s potential as a wound healing agent and a basis for modern pharmaceutical topical preparations.

Silvia Helena Ngantung; Ni Luh Putu Marina Atlanticia; Ni Made Jenni Prabayanti

International Journal of Applied Mathematics and Computing 2025 Asosiasi Riset Ilmu Matematika dan Sains Indonesia

This study analyzes bottled water consumer traits and the market share of various brands over five years at the University of Udayana using the Markov chain method. Primary data from questionnaires show most consumers are female informatics students in dorms, consuming over 2 liters daily, mostly purchasing from stores. Decisions consider quality and brand, influenced by TV ads over peer recommendations. Market share in period 1: Aqua led with 52%, followed by Le Minerale (28%), Club (13%), Cleo (7%), and others (0%). In period 2, Aqua maintained 52%, Le Minerale rose to 36%, while Club and Cleo declined to 2% and 3%. Period 3 saw Aqua at 49%, Le Minerale at 33%, and Club/Cleo at 2% and 1%. In period 4, Aqua led with 45%, Le Minerale at 31%, and Club/Cleo/others at 2%, 1%, and 7%. Finally, in period 5, Aqua remained at 41%, Le Minerale fell to 28%, while others decreased to 6%, and Club/Cleo remained at 2% and 1%.

Griselda Okta Viani; Helsa Aprilia H Mamud; Tiara Tiara

Jurnal Manajemen Kewirausahaan dan Teknologi 2025 Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

This study examines the interrelationship between the implementation of administrative ethics in civil service, the professionalism of State Civil Apparatus (ASN), and the quality of public service delivery at the Provincial Department of Energy and Mineral Resources of Central Kalimantan, employing a qualitative case study approach. Through in-depth interviews, structured observations, and document analysis, the research finds that integrity, transparency, and ethical accountability function not merely as moral norms but as structural foundations that reinforce ASN professionalism in performing service functions, particularly within licensing processes that demand administrative certainty and responsiveness. Empirical findings indicate that professionalism—reflected in technical competence, procedural discipline, and ethical commitment—acts as a catalyst linking ethical values to effective and adaptive public service performance. Nevertheless, the study also identifies structural and cultural impediments, including regulatory inconsistencies, fragmented coordination, and limited training opportunities, all of which hinder the internalization of ethical principles and professional practice within the bureaucracy. Theoretically, the study posits that harmonizing administrative ethics and professionalism is a prerequisite for achieving key indicators of good governance, such as responsiveness, service effectiveness, and institutional accountability. Practically, the study recommends strengthening ethics training, enhancing ASN professional capacity, and advancing managerial reforms grounded in modern governance as strategic efforts to sustainably improve public service quality.

Isman Saleh

Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan 2025 Asosiasi Riset Ilmu Teknik Indonesia

Carbonate rocks are one of the most important geological resources with a significant role in various industrial sectors, particularly as the main raw material in cement, lime, and construction industries. This study aims to review the characteristics, quality, and industrial potential of three major carbonate rock types—limestone, dolomite, and marble—based on relevant scientific literature. The research employed a literature review method using a qualitative-descriptive approach through analysis and synthesis of previous studies. Data were collected from scientific publications addressing the mineralogical, chemical, and physical aspects of carbonate rocks and their implications for industrial performance. The findings indicate that the quality of carbonate rocks is largely determined by mineral composition (calcite and dolomite), chemical purity (CaO and MgO), and the presence of impurities such as silica, alumina, and iron oxides. High-purity limestone rich in calcite is identified as the most efficient raw material for cement and lime industries due to its stable processing behavior and lower energy requirements. Conversely, dolomite with high magnesium content requires process adjustments to prevent excessive MgO formation during calcination. Marble, both in natural and waste powder form, shows promising potential as a supplementary material in sustainable cement production. Overall, this study emphasizes that understanding the mineralogical and chemical variations of carbonate rocks is essential for optimizing their processing strategies and promoting sustainable industrial utilization 

Mia Kusmiati; Sovian Aritonang; Avinash Pawar

International Journal of Management Science and Business 2025 International Forum of Researchers and Lecturers

Purpose –The objective of this research is to analyze the role of advanced materials as a foundation for technological innovation and as a strategic element in strengthening the national defense system. The study focuses on the interrelationships between policy aspects, industry dynamics, and theoretical frameworks to explain the urgency of adopting advanced materials in Indonesia. Design/methodology/approach –This study uses a conceptual approach based on a systematic literature review (SLR) by examining reputable international publications published by Elsevier, Springer, Wiley, Taylor & Francis, IEEE, ACM, ScienceDirect, SAGE, JSTOR and DOAJ as well as national literature indexed by SINTA. The analysis was conducted using a thematic synthesis method that combines regulatory and policy dimensions, empirical data related to budget trends and industrial implementation, and theoretical models including diffusion of innovation, technology acceptance models, and behavioral reasoning theory. Findings –Studies have shown that advanced materials such as lightweight composites, high-entropy materials, smart materials, and functional coatings have a significant role in strengthening military resilience, reducing dependence on imports, and improving the efficiency of defense logistics. However, the adoption of these materials still faces obstacles such as high production costs, limited human resources, and the vulnerability of critical mineral supply chains, which are heavily influenced by global geopolitical dynamics. Practical implications –This study emphasizes the importance of strengthening national research, integrating the defense industry into the DEFEND ID ecosystem, and international collaboration to accelerate technology transfer. Mapping the critical mineral supply chain also needs to be a strategic priority to ensure the sustainability of defense materials development. Originality/value –This article offers a novel contribution through the simultaneous integration of policy perspectives, empirical data, and theoretical frameworks in the context of advanced materials development in Indonesia, an aspect that has rarely been comprehensively explored in previous studies.

Ulan Davinci Putri; Arny Try Kartinawanty

Jurnal Siti Rufaidah 2025 PPNI UNIMMAN

Background: Oral health is an important indicator of overall health, well-being, and quality of life. According to the WHO, oral health is a state of freedom from various diseases and conditions, including dental and oral diseases that limit an individual's ability to bite, chew, smile, speak, and psychosocial well-being. Therefore, it is necessary to maintain oral hygiene as an effort to improve oral health. Case report: A 45-year-old man came to Soelastri General Hospital complaining of a large cavity in his upper left tooth. The tooth had been painful for about a year and had not undergone any treatment.Extraoral examination revealed a symmetrical face. Clinical examination of the maxillary left first premolar revealed a large cavity on the distoocclusal surface with pulpal depth. Discussion: Perforations can be treated through cavity access; the prognosis depends on the elimination and prevention of infection in the perforation area and the choice of material. The success of perforation closure management is influenced by several factors, including the timing of perforation closure, the choice of material used, the location of the perforation, and adequate perforation closure. Conclusion: Case of maxillary left premolar with diagnosis of pulp necrosis which experienced lateral perforation and the area was closed using MTA, then root canal treatment.

Fajrin Puspa Rini; Tutut Faraswati; Alin Rosidah Solihati; Aisyah Nur Khasanah

Dinamika Pembelajaran : Jurnal Pendidikan dan bahasa 2025 Lembaga Pengembangan Kinerja Dosen

The downstreaming of natural resources has emerged as a strategic policy implemented by the Coordinating Ministry for Economic Affairs to strengthen Indonesia’s economic independence and reduce reliance on raw commodity exports. Grounded in the philosophical foundation of Pancasila, this policy emphasizes the principles of economic equality, national sovereignty, and sustainability, in line with the overarching goals of national development. This study aims to analyze the role of industrial downstreaming policies in enhancing national economic self-reliance through the integration of Pancasila values. Substantively, downstreaming increases value-added production, boosts domestic investment, and facilitates job creation, particularly in the mineral processing and agro-industrial sectors. Moreover, the policy contributes to reducing economic vulnerability to global market fluctuations and aligns with the Pancasila principles of social justice and collective welfare. However, several challenges remain, including infrastructure readiness, environmental sustainability, and inclusive participation of small and medium enterprises (SMEs). The research indicates that the industrial downstream sector, as regulated by the Coordinating Ministry for Economic Affairs, plays a crucial role in realizing national economic autonomy, requiring its implementation to be aligned with Pancasila principles in order to balance economic progress with equity and sustainability.

Amertaningtyas, Dedes; Amalia, Alvina Wahyu; Evanuarini, Herly; Susilo, Agus; Jaya, Firman +1 more

JAPSI (Journal of Agriprecision and Social Impact) 2025 CV. Komunitas Dunia Peternakan

This study aimed to evaluate the effect of bee pollen addition on the chemical composition of cow’s milk–based jelly candy. Bee pollen is a natural product rich in proteins, minerals, and bioactive compounds, which may enhance the nutritional value of food products. The research was conducted at the Dairy Technology Laboratory, Department of Animal Product Technology, Faculty of Animal Science, Universitas Brawijaya, from June to August 2025. The research method used was a laboratory experiment using Complete Randomized Design (CRD) ANOVA with 4 treatments and 4 replications. If different results were obtaindes between treatments, Duncan’s Multiple Range Test (DMRT) was continued. Four treatments were applied: T0 (control, without bee pollen), T1 (6%), T2 (12%), and T3 (19%). The results demonstrated that bee pollen supplementation had a highly significant effect (P<0.01) on the protein content (Kjeldahl method), moisture content (Gravimetri method), ash content (Dry Ashing method), and carbohydrate content (By Different method), but showed no significant effect (P>0.05) on fat content (Soxhlet method). Protein content increased from 16.83% to 19.30%, moisture content increased from 29.56% to 34.30%, while ash content exhibited a fluctuating trend. Conversely, carbohydrate content decreased from 52.90% to 45.19%. Overall, the addition of bee pollen improved the nutritional quality and functional potential of milk-based jelly candy, particularly as a natural source of protein and minerals.

Al Firdaus, Nazarian Azmi

Journal of Civil Engineering and Technology Sciences 2025 Faculty Of Engineering University 17 August 1945 Semarang

Tanah ekspansif merupakan jenis tanah bermasalah yang memiliki potensi mengembang dan menyusut secara signifikan akibat perubahan kadar air, sehingga dapat menimbulkan kerusakan pada struktur perkerasan jalan, pondasi bangunan, maupun infrastruktur lainnya. Upaya stabilisasi kimia merupakan metode yang umum digunakan untuk meningkatkan sifat teknis tanah tersebut. Penelitian ini bertujuan untuk mengevaluasi efektivitas campuran semen dan magnesium carbonate (MgCO₃) dalam meningkatkan karakteristik fisik dan mekanis tanah ekspansif. Metodologi penelitian mencakup pengambilan sampel tanah ekspansif dari lapangan, pengujian sifat fisik serta pengujian mekanis meliputi uji pemadatan dan uji CBR. Variasi campuran semen sebesar 5% dan MgCO₃ sebesar 5-15% dari berat kering tanah. Hasil penelitian menunjukkan penambahan semen dan MgCO₃ mampu menurunkan plastisita, meningkatkan kepadatan dan nilai CBR secara signifikan dibandingkan kondisi tanah asli. Variasi paling efektif diperoleh pada 5% semen dan 15% MgCO₃ dengan nilai CBR unsoaked sebesar 16,35% dan CBR soaked sebesar 7,13%. Hasil ini menunjukkan MgCO₃ berperan sebagai aktivator mineral yang mempercepat reaksi pozzolanik dan meningkatkan pembentukan matriks pengikat pada butiran tanah. Campuran semen dan MgCO₃ dapat menjadi alternatif bahan stabilisasi yang efektif untuk perbaikan tanah ekspansif.

Muhammad Ashsubli

Ikhlas : Jurnal Ilmiah Pendidikan Islam 2025 Asosiasi Riset Ilmu Pendidikan Agama dan Filsafat Indonesia

This study examines Enha Water, a bottled mineral water business developed as an economic empowerment strategy based on Islamic boarding schools (pesantren) in Bengkalis Regency, Riau Province. The background of this research stems from the importance of the economic independence of Islamic boarding schools (pesantren) as Islamic educational institutions that play a role not only in religious development but also in strengthening the community's economy. The research method used was a qualitative case study approach. Data collection was conducted through in-depth interviews, observation, and documentation with the boarding school administrators, students, and related parties involved in the Enha Water business management. The results indicate that Enha Water's existence has significantly contributed to increasing the boarding school's income, creating jobs for students and the surrounding community, and fostering an entrepreneurial spirit based on Islamic values. Furthermore, this business also serves as a practical learning tool for students in economics and business management. Challenges faced include limited capital, marketing distribution, and competition with similar products. This study concludes that Enha Water has the potential to become a model for sustainable Islamic boarding school economic empowerment if supported by professional management, product innovation, and synergy with various stakeholders.