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Bangka Belitung Islands Province as the largest tin producer faces legality dilemmas and criminalization of artisanal miners due to permit centralization through Law Number 3 of 2020. This study aims to analyze the impact of centralization on artisanal miners' legal access, criminalization practices under Article 158 of the Mineral and Coal Law, and the form of Bangka Artisanal Miners Alliance (ATRB) struggle demanding legal certainty. The research employs qualitative case study approach with data collection techniques through literature study and document analysis of regulations, court decisions, and media reports. Findings show centralization narrows legal access causing slow and bureaucratic process for Artisanal Mining Area (WPR) designation and Artisanal Mining Permit (IPR) issuance. Criminalization practices more frequently affect small-scale miners major actors, creating injustice perceptions and worsening socio-economic conditions of mining households. ATRB emerges as a social movement demanding legal recognition through accelerated WPR and IPR plus economic redistribution through fair tin trade governance. Non-transparent royalty management reaching Rp1.7 trillion worsens community vulnerability. This research contributes to social movement and natural resource politics studies by emphasizing the importance of participatory legalization and governance reform to reduce social conflict.

Daun kelor (Moringa oleifera) merupakan tanaman lokal yang kaya protein, vitamin, dan mineral, serta berpotensi mendukung pemenuhan gizi anak apabila diolah dalam bentuk yang lebih diterima. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk memberdayakan masyarakat melalui inovasi pemanfaatan daun kelor (Moringa oleifera) berbasis data empiris masyarakat sebagai permen pendukung gizi anak. Kegiatan dilaksanakan di Desa Tinelo, Kabupaten Bone Bolango, Provinsi Gorontalo, dengan sasaran ibu yang memiliki anak usia 5–12 tahun. Tahap awal dilakukan pengumpulan data empiris melalui wawancara semi-terstruktur untuk mengidentifikasi pola pemanfaatan daun kelor dan tingkat penerimaan anak. Selanjutnya dilakukan kegiatan edukasi mengenai manfaat gizi daun kelor serta pendampingan pembuatan permen herbal kelor sebagai inovasi pengolahan pangan berbasis kearifan lokal. Evaluasi kegiatan dilakukan secara deskriptif dengan membandingkan kondisi pra dan pasca kegiatan terhadap perubahan pengetahuan, sikap, dan penerimaan masyarakat. Hasil kegiatan menunjukkan adanya peningkatan pemahaman ibu terhadap manfaat gizi daun kelor, dukungan terhadap inovasi pengolahan, penerimaan anak terhadap konsumsi kelor, partisipasi aktif masyarakat, serta minat untuk mengolah daun kelor secara mandiri. Kegiatan ini menunjukkan bahwa pendekatan pemberdayaan berbasis data empiris dan inovasi pangan lokal efektif dalam meningkatkan pemanfaatan daun kelor sebagai pendukung gizi anak.

Rheumatoid arthritis (RA) is a daily disease seen in rheumatology clinics. It predominantly involves the appendicular skeleton. The axial skeleton is mostly spared except for the cervical spine where instability can occur and can be carefully assessed with cervical spine radiographs in flexion and extension. Radiographs may show erosion at the C1-C2 level with destruction of the transverse ligament that can result in atlantoaxial subluxation. Diagnosis is based on clinical, laboratory, and radiographic findings. Conventional radiography has been the mainstay for diagnosis of joint damage and subsequent follow-up. Radiography can provide only indirect information on synovial inflammation, however, and the technique is insensitive to early bone damage. Hand radiographs are frequently ordered as the first imaging modality in the assessment of patients presenting with peripheral arthritis. They can provide invaluable information about the bones, joints, mineralization, soft tissues and the distribution of abnormalities. Given the wide spectrum of rheumatic diseases, it might be challenging to make the diagnosis solely based on the clinical findings and imaging plays an important role in narrowing the differential diagnosis. Having the knowledge of the common radiographic manifestations of inflammatory arthritis is of paramount importance for clinicians and radiologists to diagnose the underlying disease in early stages of disease in order to start treatment. The purpose of the article is to review the key radiographic findings of common rheumatic diseases in the hands.

Gorontalo Province possesses significant mineral resource potential, particularly gold, silver, and copper, positioning the mining sector as a key driver of regional economic growth. However, a shortage of skilled local labor and the scarcity of vocational educational institutions in the mining field severely hamper human resource development in this sector. This study aims to design a Mining Polytechnic Campus in Gorontalo by applying sustainable architecture principles, encompassing energy efficiency, environmentally friendly materials, sound wastewater management, and user comfort. The research approach involves literature studies, field observations, interviews with relevant stakeholders, and quantitative data analysis regarding resource potential, the number of senior high school students, and educational space requirements. The design results emphasize site arrangement, building mass configuration, utility systems, and interior and exterior spaces that support academic, social, and community activities. The application of sustainable architecture principles is expected to create a campus that not only meets the needs of mining vocational education but also contributes to environmental conservation and sustainable regional development.

Consumption of meat sausages has the potential to increase the risk of non-communicable diseases due to their high saturated fat content. The development of plant-based analog sausages can be a healthier alternative. Banggai sweet potato has potential as a local carbohydrate source, while moringa seeds contain relatively high protein. This study aimed to determine the acceptability and proximate composition of analog sausages made from Banggai sweet potato flour and moringa seed flour. This study was an experimental research using a Completely Randomized Design (CRD) with three formulations (F1, F2, and F3). Organoleptic testing was conducted on 30 semi-trained panelists using a 5-point hedonic scale including color, aroma, taste, and texture. Data were analyzed using Shapiro–Wilk, Kruskal–Wallis, and Mann–Whitney tests. Proximate analysis was performed on the selected formulation. The results showed significant differences in all acceptability parameters (p < 0.05). Formulation F3 was the best formulation based on panelists’ preference level. Proximate analysis of formulation F3 per 100 grams showed moisture content of 7.54%, ash content of 1.61%, protein 7.67%, fat 11.28%, and carbohydrate 21.02%. Formulation F3 had the highest acceptance level and nutritional content with potential as a plant-based protein food alternative. Further studies are needed including mineral analysis, shelf-life testing, microbiological analysis, and industrial-scale development to improve product quality.

Travertine is a non-marine carbonate rock precipitated from calcium- and bicarbonate-rich waters, commonly associated with hot springs, streams, and lakes in tectonically active regions. This study presents a systematic literature review of travertine deposit characteristics, encompassing mineralogical composition, geochemical signatures, petrographic textures, morphological types, isotopic properties, biotic–abiotic controls on formation, early diagenesis, and petrophysical implications. The synthesis indicates that travertine is predominantly composed of calcite, with aragonite forming under conditions of elevated temperature, high Mg/Ca ratios, and rapid CO₂ degassing. Travertines display exceptional textural diversity, ranging from abiotic crystalline crusts to microbially mediated fabrics such as shrub, peloidal, and stromatolitic structures. Major morphologies include fissure ridges, mounds, terraces, cascades, and slopes, strongly governed by tectonic setting, topography, hydrology, and substrate geology. Stable isotopes (δ¹³C and δ¹⁸O), strontium isotopes, trace elements, and REE patterns effectively constrain fluid provenance and distinguish thermogene from meteogene travertines. Microbial activity plays a crucial role in biomineralization, influencing precipitation rates, crystal morphology, and lamination patterns. Early diagenetic processes occurring during active deposition may significantly modify primary fabrics and geochemical signals. Travertine petrophysical properties exhibit distinctive porosity–velocity relationships, making them valuable analogues for subsurface carbonate reservoirs. This review highlights that travertines record complex interactions among physical, chemical, biological, and geological processes and hold significant value for paleoenvironmental reconstruction and carbonate reservoir studies.

Pumpkin seeds (Cucurbita spp.) are a byproduct of pumpkin that has great potential to be developed as a functional food ingredient due to their high nutritional content and bioactive compounds. This article aims to examine the valorization (utilization) of pumpkin seeds in various food products and their potential as a functional food. The method used was a narrative literature review through a search of the Google Scholar, ScienceDirect, PubMed, and MDPI databases for the period 2016–2026. The results of the study indicate that pumpkin seeds have been applied in various food products such as cookies, crackers, bread, biscuits, cakes, muffins, and snack bars. The addition of pumpkin seeds generally increases the content of protein, fiber, unsaturated fatty acids, minerals, and bioactive compounds that contribute to antioxidant activity. However, increasing the proportion of pumpkin seeds also affects the physical and sensory characteristics of the product, such as darker color, decreased volume, and changes in texture due to reduced gluten content in the dough. Therefore, formulation optimization is needed to achieve a balance between increasing nutritional value and consumer acceptance. Overall, pumpkin seeds have the potential to be used as an ingredient in the development of functional foods.

Facies analysis and thin-section petrography are complementary and essential approaches for determining the lithological characteristics of deep-water deposits. Deep-water sediments are formed by diverse depositional processes such as turbidity currents, debris flows, slumps, and pelagic suspension settling, producing a wide range of lithofacies with distinctive textural, compositional, and sedimentary structural attributes. This literature review synthesizes studies that apply facies analysis and thin-section petrography to characterize deep-water deposits across various basins and geological ages worldwide. Field-based facies analysis emphasizes lithology, sedimentary structures, bed geometry, and vertical–lateral facies relationships to reconstruct depositional environments. In contrast, thin-section petrography provides microscopic insights into mineral composition, grain texture, cement types, porosity, and diagenetic features that are not observable in the field. The integration of these methods, often combined with advanced techniques such as XRD, SEM, and geochemical analyses, has proven effective in distinguishing lithofacies, understanding sedimentary processes, and evaluating reservoir quality. The review highlights that grain size, sorting, cement type, pore-throat size, and diagenetic processes are key controls on lithological characteristics and reservoir potential in deep-water systems. Therefore, the combined application of facies analysis and thin-section petrography provides a comprehensive framework for interpreting deep-water sedimentary systems.

The amalgamation and flotation methods are widely used by miners because the methods are simple, fast and easy. The purpose of this study was aims to test the effectiveness of gold recovery using the amalgamation and flotation methods in conventional gold processing. The research methods used were observation and testing using the amalgamation and flotation methods in conventional gold processing. The effectiveness analysis was carried out by calculating the percentage of gold produced in the amalgamation and flotation processing methods. The test was carried out on 10 samples, each weighing 10 kg. The amalgamation process used a Hg solution, while flotation used a detergent reagent. The total primary gold processing using the amalgamation method was 11.46 grams, while the total primary gold recovery using the flotation method was 12.15 grams. The results of gold processing using the flotation method were higher than those using amalgamation because flotation can separate gold more efficiently from ore containing various impurity minerals. Meanwhile, the amalgamation method, which uses mercury, tends to be less effective and loses some of the gold because it only binds very fine and dispersed gold particles, while flotation can handle ore with lower gold content and larger gold particles.

Fertilization serves as a fundamental component of crop cultivation, wherein the application of mineral nutrients is crucial for plant nourishment, facilitating various physiological processes critical for growth and development. The objective of this study is to establish an optimal recommended dosage that enhances cabbage growth and yield. The experimental design employed in this study was a randomized block design with four replications. The treatments consist of seven fertilization levels, as follows: No fertilization with nitrogen (N), phosphorus (P), or potassium (K) (P0), reference fertilization (P1), 0.5 dose of unbalanced compound fertilizers (P2), 0.75 dose of unbalanced compound fertilizers (P3), 1.0 dose of unbalanced compound fertilizers (P4), 1.25 dose of unbalanced compound fertilizers (P5), and 1.5 dose of unbalanced compound fertilizers (P6). The experiment indicated that the application of unbalanced compound fertilizers enhances cabbage plant growth, as evidenced by increased plant height and leaf number compared to the control treatment. Additionally, fertilization improves yield components relative to untreated plants. The application of 0.5 doses of unbalanced compound fertilizers proves agronomically effective, yielding the highest relative agronomic effectiveness at 169%, meaning a 1.69-fold increase in yield. Economically, the same dosage is also highly beneficial, achieving the highest R/C ratio of 2.35 and generating a profit of Rp. 14,365,150. The study results confirm that unbalanced compound fertilizers were both agronomically effective and economically advantageous. The recommended dosage for cabbage cultivation is 134 kg/ha, applied in two stages: 50% at 1 WAT (weeks after transplanting) and the remaining 50% at 4 WAT.

This study aims to determine the effect of adding Buton Asphalt on the mechanical properties of Asphalt Concrete – Wearing Course (AC-WC) mixtures based on Marshall test parameters. The variations of asphalt content used were 0%, 2%, and 5%. Each variation was tested using the Marshall method to obtain the values of Stability, Flow, Void in Mix (VIM), Void in Mineral Aggregate (VMA), Void Filled with Asphalt (VFA), and Marshall Quotient (MQ). The results show that the addition of Buton Asphalt affects the improvement of the mixture characteristics. The highest stability value was obtained at 5% Buton Asphalt content, which was 1,074 kg, while the lowest flow value was also found at 5%, which was 2.48 mm, indicating that the mixture becomes stiffer and more stable. The VIM value decreased from 4.7% at 0% content to 4.2% at 5% content, indicating that the air voids in the mixture became smaller. The VMA value also decreased from 16.2% at 0%, 15.8% at 2%, and 15.1% at 5%, while the VFA value increased from 71% to 72.18%. The highest Marshall Quotient (MQ) value was obtained at 5% Buton Asphalt content, which was 433 kg/mm, indicating that the mixture has better stiffness and resistance to deformation. Based on these results, it can be concluded that the addition of 5% Buton Asphalt provides the best mixture characteristics for the AC-WC layer.

Background: Anemia in pregnancy is a significant public health problem that can increase the risk of maternal and fetal complications. One of the main strategies to prevent anemia is the administration of Multiple Micronutrient Supplements (MMS), which provide essential vitamins and minerals during pregnancy. However, the effectiveness of MMS in preventing anemia is closely related to the level of knowledge pregnant women have about its use. Therefore, understanding the relationship between knowledge about MMS and anemia incidence is crucial to improving maternal health outcomes (Rahmawati et al., 2023). Objective: This study aims to determine the relationship between pregnant women’s knowledge level about Multiple Micronutrient Supplements (MMS) and the incidence of anemia among pregnant women in the working area of Dr. Hi. Zainal Umar Sidiki Hospital, North Gorontalo. Methods: This research employed an analytical observational design with a cross-sectional approach. A total of 30 pregnant women were selected as the sample using purposive sampling techniquesResults: The study found that the majority of participants who had high knowledge levels about MMS had a lower incidence of anemia, while those with low knowledge levels had a higher incidence. These results highlight that knowledge about MMS strongly influences pregnant women’s adherence and effectiveness in preventing anemia. Conclusion: There is a significant relationship between pregnant women’s knowledge level about Multiple Micronutrient Supplements (MMS) and the incidence of anemia. Improving maternal knowledge about MMS through health education, counseling, and guidance from healthcare providers is essential to prevent anemia and support optimal pregnancy outcomes.

Indonesia’s mineral downstreaming policy has become a strategic instrument to increase the added value of natural resources and strengthen the country’s position in the global mineral value chain. This study aims to analyze the effectiveness of the mineral downstreaming policy in encouraging regional economic transformation through the development of an integrated nickel processing industry in Obi Island, South Halmahera. The research employs a descriptive qualitative approach using secondary data obtained from government publications, corporate reports, policy documents, and environmental reports. Key data sources include regional economic statistics from the Central Bureau of Statistics, corporate publications from Harita Nickel, and regulatory frameworks such as Law No. 3 of 2020 concerning Mineral and Coal Mining. The findings show that the downstreaming policy has transformed Indonesia’s nickel industry by shifting export patterns from raw ore toward higher value-added products such as ferronickel and Mixed Hydroxide Precipitate (MHP), which are essential materials for electric vehicle battery production. The integration of Rotary Kiln Electric Furnace (RKEF) and High Pressure Acid Leach (HPAL) technologies in Obi Island has strengthened Indonesia’s role in the global battery supply chain while also stimulating regional economic growth in South Halmahera. However, the rapid expansion of the nickel industry also raises environmental governance challenges that require stronger regulatory oversight and sustainable mining practices. Therefore, future policy implementation should emphasize balanced economic development, environmental sustainability, and effective governance in mineral resource management.

Law Number 11 of 2006 on the Governance of Aceh embodies the principle of lex specialis due to its territorial scope, while Law Number 4 of 2009 on Mineral and Coal Mining also contains a lex specialis character as it specifically regulates the mining sector. This situation raises a legal question regarding how the principles of lex specialis derogat legi generali, lex superior derogat legi inferiori, and lex posterior derogat legi priori should be interpreted and applied by the Government within the framework of Aceh as a Special Autonomous Region. This study aims to conduct an in-depth legal analysis using a progressive law approach to examine whether the principles of lex posterior or lex superior may override the principle of lex specialis as applied in Aceh’s special autonomy regime. The research employs normative legal methods with qualitative analysis. The findings indicate that the principle of lex specialis derogat legi generali as stipulated in the Law on the Governance of Aceh must take precedence due to its specific territorial applicability and special autonomous status. In resolving such normative conflicts, a clear legal framework is required, accompanied by the renewal of legal theories and principles to ensure legal certainty, prevent regulatory overlap, and promote harmony among statutory regulations.

The increasing demand for housing in tropical regions requires building materials that are fast to apply, environmentally friendly, and resilient to extreme climate conditions as well as disaster risks. Conventional interlocking bricks are often chosen for their ease of construction, yet they still face challenges such as moisture and early cracking. This study proposes the innovation of the Hybrid Living Green Brick, a combination of lightweight bricks made from rice husk ash and fly ash waste (FRCB) with a biological layer of cyanobacteria. FRCB improves compressive strength by approximately 30% with the addition of 5% rice husk ash, achieving 65 kg/cm², thereby meeting Class 50 requirements (≥50 kg/cm²) according to SNI-15-2094-2000. The incorporation of 3% cyanobacteria provides an additional though not significant strength improvement, while still within the Class 50 category. It also reduces brick weight by 4.3%, with further optimization potential through cyanobacteria integration, and lowers carbon emissions from the firing process. Cyanobacteria induce the formation of CaCO₃ layers that seal pores, reduce water absorption by an average of 10%, and provide self-healing properties for microcracks. Preliminary observations indicate that FRCB offers stable mechanical performance, while biological activity was observed on the 7th day with the formation of pale-white mineral layers continuing until the 28th day. This hybrid innovation shows potential to support sustainable and disaster-resilient tropical construction by combining the mechanical strength of waste-based materials with the biological durability of cyanobacteria against extreme climates. Despite challenges related to moisture control and production standardization, the Hybrid Living Green Brick concept opens new pathways for developing environmentally friendly construction materials that are more adaptive to disaster-prone tropical conditions.

Crackers are snacks that are popular with various age groups, but generally have a relatively low calcium content so they do not contribute to meeting daily mineral needs. Therefore, food product innovations are needed to increase their nutritional value, one of which is by utilizing purebred chicken egg shells as a natural source of calcium. This study aims to analyze the effect of purebred chicken eggshell flour substitution on the acceptability of crackers and determine the best formulation as a high-calcium snack. The research method used an experimental design with a Complete Random Design (RAL) consisting of four treatments, namely P0 (100:0), P1 (90:10), P2 (85:15), and P3 (80:20). The testing is carried out qualitatively through organoleptic tests which include color, aroma, taste, and texture. The data was analyzed using the one-way ANOVA test and followed by the Post Hoc Kruskal-Wallis test if there were significant differences. The results showed that the best formulation was found in the P1 treatment with a 10% substitution of eggshell flour. Overall, the substitution of purebred chicken eggshell flour had no significant effect on the acceptability of crackers.

The COVID-19 pandemic caused by SARS-CoV-2 has had a significant impact on public health behavior, including the increasing consumption of health supplements as an effort to strengthen immunity. This study aims to describe the level of knowledge of the people of Gedongan Village RT 01 RW 05 regarding the use of health supplements during the pandemic. Health supplements are defined as products that contain vitamins, minerals, amino acids, and herbal ingredients to support the immune system. The study used a descriptive approach with a survey method, involving 106 respondents who were selected purposively. Primary data was obtained through a structured questionnaire that had been validated, then analyzed descriptively. The results showed that the majority of respondents had a level of knowledge in the sufficient category (54%), followed by the poor category (25%) and the good category (21%). Respondents understood the benefits of supplements as a nutritional supplement, but knowledge related to rules of use, appropriate dosage, and potential side effects was limited. Demographic factors such as age, education, and type of work have an effect on knowledge levels, where respondents of productive age, secondary education, and work with cognitive demands show better understanding. The study concludes the need for continuous health education through health workers, especially pharmacists, with an approach according to demographic characteristics to encourage the use of supplements in a rational, safe, and appropriate manner.

Electrolytes are essential minerals that play a critical role in various physiological processes within the body, including the maintenance of fluid balance, proper neuromuscular function, and the transmission of nerve impulses. They are vital for the stability of the heart and other crucial organs. When electrolyte levels become imbalanced, as seen in conditions such as hyponatremia (low sodium), hypernatremia (high sodium), hypokalemia (low potassium), hyperkalemia (high potassium), and hypocalcemia (low calcium), serious health issues can arise. These imbalances can result from factors like malnutrition, excessive losses through the kidneys or gastrointestinal tract, hormonal disorders, and certain systemic diseases. Understanding the underlying pathophysiological mechanisms and clinical manifestations of these disturbances is essential for effective diagnosis and treatment. Healthcare providers must identify the root causes of electrolyte imbalances while assessing their severity to implement appropriate management strategies. This often involves gradually correcting electrolyte levels to mitigate the risk of life-threatening complications such as arrhythmias, cerebral edema, and neurological impairment. By fostering a comprehensive understanding of electrolyte imbalances, healthcare professionals can improve diagnostic accuracy and therapeutic effectiveness, ultimately leading to better patient outcomes. This knowledge is crucial in minimizing morbidity and mortality associated with these disruptive conditions, ensuring that individuals receive prompt and effective care to restore balance and maintain overall health.

Nickel has become a strategic mineral in the global industrial value chain, particularly for stainless steel production and electric vehicle battery manufacturing. As one of the world’s largest nickel producers, Indonesia has implemented a downstream industrialization policy aimed at increasing value added and strengthening export performance. This study analyzes the effects of international nickel prices, destination countries’ GDP per capita, exchange rates, and the downstreaming policy on the value of Indonesia’s nickel exports (HS 75) over the period 2010–2023. The study employs a quantitative approach using panel data regression with secondary data covering five major export destination countries, namely China, Japan, South Korea, Thailand, and Singapore. Based on the Chow and Hausman tests, the Fixed Effects Model is selected as the most appropriate estimation technique, indicating the presence of country-specific heterogeneity among importing countries. The results show that destination countries’ GDP per capita and international nickel prices have a positive and statistically significant effect on Indonesia’s nickel export value. The downstreaming policy dummy variable also exhibits a positive and significant impact, suggesting that the nickel ore export ban implemented since 2020 has effectively shifted export composition toward higher value-added processed nickel products. In contrast, exchange rates are found to have no significant effect on export performance. Overall, the findings provide empirical evidence supporting the effectiveness of Indonesia’s downstream industrialization policy and highlight the importance of global demand conditions in driving the performance of processed nickel exports.

This study aimed to analyse the mineral water inventory management practices and improve production cost efficiency at PT. Pintar Sumber Mineral. The research utilized a quantitative descriptive method, with data collected through interviews, documentation reviews, and literature studies. The findings demonstrated that the company had successfully and effectively implemented the Economic Order Quantity (EOQ) model. This effective implementation was evidenced by: The increase in the EOQ value corresponding with the growth in annual demand. The implementation of specific inventory management strategies that supported cost efficiency. While significant demand growth led to an increase in ordering and holding costs, the strategy of adjusting the EOQ model was able to optimally mitigate the impact of these rising costs. This study concluded that the application of the EOQ model had made a positive contribution to the company's operational efficiency.