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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.

The increasingly complex global energy problem drives the need for efficient, low-cost, and environmentally friendly energy storage systems. This study aims to analyze the power performance of two symmetric supercapacitor prototypes using Nitrogen-doped Graphene-Like Carbon (N-GLC) as the electrode material and 1 M  as the electrolyte, with different electrode substrates: aluminum and copper. Both prototypes were tested through charging and discharging processes using resistive loads of 470 ohms and 560 ohms for 5 minutes. The analyzed parameters include voltage, current, power, and output energy. The results show that the aluminum electrode achieved a higher maximum charging power of up to 18 mW; however, its energy discharge efficiency was very low at only 0.87%. In contrast, the copper electrode demonstrated a more balanced charging and discharging performance with an energy discharge efficiency of 19.4%. Analysis also indicates that the copper substrate maintains better voltage stability after 6 hours of storage compared to aluminum, which experienced significant degradation. Thus, the copper electrode is superior in maintaining the power and stability of a simple N-GLC-based symmetric supercapacitor system.

Ballast water plays a crucial role in maintaining ship stability during shipping, but it also carries environmental and human health risks due to the heavy metals it carries. This study aims to examine the health risks posed by exposure to heavy metals in ballast water and to assess the effectiveness of management practices implemented in the maritime industry. Using a literature review method, this study examines various scientific sources related to the content of heavy metals such as lead (Pb), cadmium (Cd), copper (Cu), and zinc (Zn) in ballast water, as well as their impacts on human health and marine ecosystems. The results indicate that heavy metals in ballast water can cause long-term toxic effects such as neurological disorders, kidney damage, and respiratory and reproductive disorders. The greatest risk is experienced by maritime workers who are directly exposed through inhalation or skin contact during the ballast water sampling and processing process. To minimize these risks, strict work safety protocols, improved ballast water treatment technology, and regular monitoring of heavy metal levels are required. Thus, this study emphasizes the importance of strengthening ballast water management policies and practices that are oriented towards human health and environmental sustainability.  

With growing antimicrobial resistance becoming a major health concern, there is an urgent need to explore alternative treatment options. This study examined the efficacy of copper sulfate pentahydrate (CSP) against eight microorganisms commonly implicated in vaginal infections. We tested three Candida species (C. albicans, C. glabrata, and C. tropicalis) along with five bacterial species, including Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae, Gardnerella vaginalis, and Pseudomonas aeruginosa. The agar dilution test was performed at concentrations ranging from 0.0001M to 0.7M of CSP. We obtained an effect of CSP antimicrobial, which was concentration-dependent. Concentrations low ( ≤ 0.007M) did not influence growth significantly. We observed partial growth inhibition at medium concentrations (0.05-0.07M, equivalent to approximately 780 -1092 µg/ml) of the solution. The growth of bacteria and yeasts was fully inhibited at 0.05M and 0.07M, respectively. The dose required to kill the organisms (not merely inhibit their growth) was 0.25M (approximately 2014 µg/ml) across all microorganisms used, and we verified this by observing no growth when samples were inoculated into fresh media. These findings have indicated that CSP possesses good antimicrobial efficacy against typical vaginal pathogens at doses that may be applied in topical therapies. However, some additional research is required, especially the research that will investigate the toxicity on human cells and the production of suitable formulations to be used clinically.

As a manufacturing company engaged in the processing of copper and wire products, PT Tembaga Mulia Semanan, Tbk requires human resources with optimal performance to support the achievement of organizational goals. This study aims to examine the effect of work motivation and work environment on employee performance at PT Tembaga Mulia Semanan, Tbk. This research employed a quantitative approach with data collection conducted through questionnaire distribution. The research population consisted of all employees of the South Continuous Rod (SCR) Division, totaling 65 employees, with a sample of 42 respondents. The collected data were analyzed using multiple linear regression analysis with the assistance of SPSS software. The results of the t-test indicate that work motivation partially has a positive and significant effect on employee performance, as shown by a t-value of 4.265 which is greater than the t-table value of 2.022, with a significance level of 0.000 < 0.05. The work environment also partially has a positive and significant effect on employee performance, indicated by a t-value of 6.080 which is greater than the t-table value of 2.022 and a significance value of 0.000 < 0.05. Furthermore, the F-test results show that work motivation and work environment simultaneously have a positive and significant effect on employee performance. The coefficient of determination (R²) of 63.52% indicates that variations in employee performance can be explained by work motivation and work environment, while the remaining percentage is influenced by other factors outside this study.

This in-depth study explores the comprehensive marketing strategies implemented by CV. Logam Jaya Gallery, a leading copper and brass craft business entity in Tumang Village, Boyolali. The research aims to identify the key factors behind the company's resilience in the face of intense industry competition. Using a qualitative approach, operational data was obtained in depth. The results show that the company integrates direct marketing through national and international exhibitions, while optimizing digital channels and e-commerce for broader global market penetration. Despite its success, CV. Logam Jaya Gallery faces significant obstacles such as market demand fluctuations, limitations in manual production technology, and competitive pressures. As a mitigation measure, the company diversifies its products and adopts contemporary technology to efficiently increase its operational capacity. Strategic synergies with the government and the private sector were also strengthened to expand promotional access. This success was also supported by fundamental pillars in the form of cultural heritage and intergenerational craftsmanship. Through a combination of organized management, sustainable design innovation, and adaptation to market dynamics, the company has succeeded in establishing itself as a competitive creative industry player on the national and global stage.

This in-depth study explores the comprehensive marketing strategies implemented by CV. Logam Jaya Gallery, a leading copper and brass craft business entity in Tumang Village, Boyolali. The research aims to identify the key factors behind the company's resilience in the face of intense industry competition. Using a qualitative approach, operational data was obtained in depth. The results show that the company integrates direct marketing through national and international exhibitions, while optimizing digital channels and e-commerce for broader global market penetration. Despite its success, CV. Logam Jaya Gallery faces significant obstacles such as market demand fluctuations, limitations in manual production technology, and competitive pressures. As a mitigation measure, the company diversifies its products and adopts contemporary technology to efficiently increase its operational capacity. Strategic synergies with the government and the private sector were also strengthened to expand promotional access. This success was also supported by fundamental pillars in the form of cultural heritage and intergenerational craftsmanship. Through a combination of organized management, sustainable design innovation, and adaptation to market dynamics, the company has succeeded in establishing itself as a competitive creative industry player on the national and global stage.

Asset management and equipment maintenance are crucial aspects in supporting smooth business operations, particularly in the copper crafts industry. Merapi Karya Cipta, located in Dusun III, Tumang, Cepogo District, Boyolali Regency, owns various production equipment assets that play a direct role in the work process, yet their management remains rudimentary and unplanned. This community service activity aims to increase copper craftsmen's understanding and awareness of the importance of asset management and equipment maintenance to improve operational efficiency. Qualitative methods were used through observation, interviews, and direct outreach to the craftsmen. The results of the activity demonstrated increased knowledge and a shift in participants' perspectives on business management, particularly regarding equipment maintenance and division of labor. The craftsmen began to understand that routine maintenance can be performed simply and does not always require significant costs. Therefore, this activity is expected to help maintain the continuity of the production process, reduce the risk of equipment damage, and support increased productivity and the well-being of the local community.