This study investigates the photooxidation of Roxithromycin and Erythromycin, two prevalent antibiotics found in antibiotic industry wastewater, utilizing a CeO₂/ZnO nanocomposite as a photocatalyst. The synthesized CeO₂/ZnO nanocomposite exhibits enhanced photocatalytic activity under sun light irradiation, promoting the degradation of these antibiotics. Various parameters, including catalyst loading, initial antibiotic concentration, and reaction time, were systematically optimized to assess their influence on the photocatalytic efficiency. The results indicate significant degradation rates for both antibiotics. These findings underscore the potential of CeO₂/ZnO nanocomposites as a viable solution for the remediation of antibiotic-contaminated wastewater, contributing to environmental sustainability and public health protection.

Keywords: cerium oxide, zinc oxide, photocatalytic degradation, antibacterial activity.

The growth of wind energy in Brazil has driven the development of wind farms in various regions, especially in the Northeast, bringing economic and environmental benefits. However, the sector also presents significant occupational risks, mainly related to activities at height and the handling of heavy loads. In light of this, this article sought to assess the importance of worker safety in wind farms in Brazil, based on an integrative literature review. The methodology consisted of analyzing articles and studies published between 2017 and 2024, consulted from the Scielo, PubMed, and Google Scholar databases.........

Keywords: Wind farms; Occupational safety; Accidents; International Certifications.

Rapid urbanization across the world creates several challenges for the field of sustainable development. One promising approach to addressing challenges in urban planning and fostering sustainable development in such a setting is the integration of AI with remote sensing technology. This research provides a summary of how AI and remote sensing are being used for sustainable development in urban planning. The article's first part presents an outline of the most pressing issues created by urbanization, such as population growth, resource depletion, environmental degradation, and increased energy use.........

Keywords: Sustainable Development, Artificial Intelligence (AI), Smart and Sustainable Cities, Remote Sensing, Urban planning.

Design Thinking is an innovative approach to problem solving that promotes hands-on and systems thinking. This study explores how Design Thinking can be applied in higher education to create an interactive learning environment that is appropriate to Kolb's four learning styles: Diverger, Assimilator, Converger, and Accommodator. Research confirms that Design Thinking is an innovative and effective learning method, especially suitable for higher education environments where students need to develop practical and creative skills to meet the demands of the modern labor market. Integrating Design Thinking with Kolb's learning style characteristics creates a flexible learning environment that encourages active participation and helps students explore their abilities through real-life experiences, while developing problem-solving and teamwork skills - core elements in education and future work.

Keywords: Design Thinking, Kolb's learning style, higher education, creative skills, innovative teaching methods.

Sustainable electrochemistry offers innovative solutions for addressing environmental challenges through green and efficient electrochemical processes. This paper explores the principles of green chemistry in electrochemical applications, emphasizing atom economy, renewable resources, and energy efficiency. Key areas discussed include electrochemical water treatment, which provides practical solutions for wastewater purification and desalination, and carbon capture and conversion technologies, where CO₂ is electrochemically reduced to value-added products. Additionally, advancements in renewable energy storage, such as sustainable battery technologies and fuel cells, demonstrate the potential of electrochemical systems in reducing environmental impact..........

Keywords: sustainable electrochemistry, green chemistry, environmental applications, electrochemical water treatment, carbon capture, renewable energy storage.

Dopamine is a neurotransmitter, which is a chemical messenger that transmits signals in the brain and other areas of the nervous system. It plays a crucial role in various physiological functions and is involved in regulating mood, movement, attention, and the brain's reward system. In the context of Alzheimer's disease and neurodegenerative disorders, dopamine is one of the neurotransmitters that can be affected. Dopaminergic pathways are particularly associated with movement and cognitive functions. Imbalances or deficiencies in dopamine levels have been implicated in various neurological and psychiatric conditions, including Parkinson's disease, schizophrenia, and Alzheimer's disease...........

Rapid technological improvements are advantageous to library management. Using Quick Response Codes and RFID technologies as automatic identifiers in library administration is one example. Inaccurate book availability information, a dearth of services for human resources library management, and no assurances about the safety management of the library's collection are only a few of the problems that libraries are currently facing. This project addresses the problems by creating a library management information system that creates automatic identification through the use of Near Field Communication and QR Code technologies. Each library patron has an NFC card, which is used to save their personal data...........

Keywords: Library, Automatic Identifier, QR Code, NFC Card, Accurately

This study investigates the relationship between working capital management (WCM) and financial performance in quoted pharmaceutical firms in Nigeria, specifically focusing on May & Baker Nigeria Plc and Fidson Healthcare Plc. Employing a descriptive research design, data were collected over five years (2018-2023) through structured questionnaires and financial statements. The analysis utilized correlation and regression techniques to examine key WCM metrics, including the current ratio, quick ratio, and cash conversion cycle (CCC), and their impact on profitability, measured by Return on Assets (ROA) and Return on Equity (ROE). Findings reveal that both firms maintain relatively high liquidity positions, with Fidson consistently outperforming...........

Keywords: working capital management, financial performance, current ratio, cash conversion cycle, liquidity management, profitability, wealth maximization.

This paper aims to utilize coconut water waste to produce alternative fuels through a fermentation process so that it can be used as bioethanol fuel. In further research and development of effective and efficient technology for fermentation of coconut water waste into bioethanol is very important to be realized. This not only supports better utilization of natural resources, but also contributes to sustainable development and reducing dependence on fossil fuels. The results of this study showed that there was an effect of fermentation time on the ethanol content of coconut water fermentation results and the optimum time for coconut water...........

Keywords: fuel, fermentation, waste coconut water, bioethanol.

This paper aims to utilize coconut water waste to produce alternative fuels through a fermentation process so that it can be used as bioethanol fuel. In further research and development of effective and efficient technology for fermentation of coconut water waste into bioethanol is very important to be realized. This not only supports better utilization of natural resources, but also contributes to sustainable development and reducing dependence on fossil fuels. The results of this study showed that there was an effect of fermentation time on the ethanol content of coconut water fermentation results and the optimum time for coconut water...........

Keywords: fuel, fermentation, waste coconut water, bioethanol.

This paper aims to utilize coconut water waste to produce alternative fuels through a fermentation process so that it can be used as bioethanol fuel. In further research and development of effective and efficient technology for fermentation of coconut water waste into bioethanol is very important to be realized. This not only supports better utilization of natural resources, but also contributes to sustainable development and reducing dependence on fossil fuels. The results of this study showed that there was an effect of fermentation time on the ethanol content of coconut water fermentation results and the optimum time for coconut water...........

Keywords: fuel, fermentation, waste coconut water, bioethanol.