Exploitation of mineral resources through mining activities in Indonesia provides significant economic benefits, but also causes various negative impacts on the environment and socio-economic life of local communities. This study aims to review the impacts of various types of mining activities such as sand, coal, and gold. Common environmental damages include deforestation, soil erosion, water, soil, and air pollution, and decreased biodiversity. Socio-economically, mining increases social conflict, health problems, and changes in people's livelihoods. Effective management efforts include law enforcement against illegal activities, implementation of reclamation and rehabilitation, application of impact mitigation technology, and active involvement of local communities in environmental management. Consistent implementation of policies and mitigation measures is key to achieving a balance between economic benefits and environmental sustainability.

Indonesia is one of the countries with the highest levels of biodiversity in the world and possesses vast tropical forest areas that play a crucial role in maintaining the stability of global ecosystems. However, in recent decades, Indonesia’s forests have faced significant pressures due to deforestation and environmental degradation, which have broad impacts on ecological functions, climate balance, and the socio-economic lives of communities. This study aims to examine the role of biodiversity and ecological adaptation mechanisms in maintaining the stability of Indonesia’s forest ecosystems through a literature review approach. The findings show that deforestation directly affects biodiversity decline, habitat fragmentation, disruption of hydrological systems, increased erosion, and carbon emissions. Additionally, illegal activities such as logging and mining exacerbate environmental degradation. Biodiversity is proven to be an important factor in enhancing ecosystem resilience to disturbances, including climate change. Adaptation mechanisms such as the presence of bioindicator species, the formation of ecological corridors, and community participation in conservation can strengthen ecological resilience. Rehabilitation of degraded areas and the implementation of sustainable governance policies are necessary to restore the ecological functions of forests. This study emphasizes the importance of a multidisciplinary and collaborative approach in conservation strategies, supported by strong scientific, social, and institutional frameworks to ensure the sustainability of Indonesia’s forest ecosystems in the future.

This study examines the application of the Lagrange method and Particle Swarm Optimization (PSO) in solving the Economic Dispatch problem at the Tanjung Jati B Steam Power Plant (PLTU). The main objective is to compare the effectiveness of both methods in optimizing load distribution among generation units and to evaluate potential operational cost savings compared to actual operating conditions. The optimization model minimizes a quadratic generation cost function, subject to system load demand and the power output limits of each unit. Simulation data includes daily load distribution and fuel-related parameters such as calorific value and fuel price. The results show that the Lagrange method yields an average power output of 2,367 MW, equal to the real condition, while PSO produces 1,966 MW, which is 16.94% lower. In terms of cost savings, PSO achieves an average saving of IDR 938,501, while the Lagrange method and real operation yield average savings of IDR 1,078,064 and IDR 1,073,076 respectively. In percentage terms, Lagrange shows 12.95% higher savings than PSO and 0.46% higher than the actual condition. This study highlights the importance of integrating optimization methods in power plant operations to improve efficiency and reliability of electricity supply.

Desa Keji, Kecamatan Muntilan, Kabupaten Magelang termasuk desa lokus stunting. Persentase angka stunting di desa tersebut yaitu 21,4% di bawah angka stunting Kabupaten Magelang yaitu 25,8%. Salah satu dusun yaitu Pasekan kasus stunting rendah, hanya 1 anak yang stunting dan 1 anak yang berat badannya di Bawah Garis Merah (BGM). Namun demikian, Posyandu Tunas Harapan yang berada di wilayah ini selalu berupaya memberikan pelayanan kesehatan kepada warga agar kasus stunting tidak pernah muncul. Meskipun begitu, masih ada beberapa kendala yang dihadapi, di antaranya yaitu kekurangpedulian para ibu dalam memberikan makanan yang kandungan gizinya cukup kepada anak-anak. Para ibu tersebut umumnya bekerja sebagai pedagang, sehingga urusan anak diserahkan kepada kakek nenek. Oleh karena itu, tim Pengabdian Pada Masyarakat Terpadu (PPMT) Universitas Muhammadiyah Magelang melaksanakan kegiatan sosialisasi dan praktik pembuatan Makanan Pendamping Air Susu Ibu (MPASI) kepada para ibu warga Dusun Pasekan bekerja sama dengan Posyandu Tunas Harapan pada bulan Desember 2024 yang lalu. Hasil sosialisasi menunjukkan bahwa terjadi peningkatan pemahaman para ibu sebesar 71% terhadap arti penting pemberian MPASI kepada anak-anak usia lebih dari 6 bulan. Selanjutnya 69,7% para ibu memahami cara pembuatan MPASI yang diajarkan tim PPMT dan bersedia untuk mempraktikkan di rumah dalam pemberian makanan kepada anak-anaknya.

Indonesia's financial reforms, starting in 2003, introduced accrual-based Government Accounting Standards (PP No. 71/2010) for transparent and efficient financial management. The Provincial Government of Yogyakarta (DIY) is required to produce accurate financial reports, including inventory management under PSAP No. 05. BPKA DIY plays a key role but faces challenges due to discrepancies between financial and inventory systems. This study examines the importance of an integrated inventory accounting system in improving the quality of financial reporting at BPKA DIY, offering recommendations to enhance efficiency and transparency.

This research aims to analyze the influence of SIKD Sleman on SPJ-shopping processing at the Sleman Industry and Trade Department. The research method used is qualitative with primary and secondary data sources. Primary data was obtained directly through interviews, while secondary data was obtained by analyzing independently by reading the relevant laws and regulations. Based on the results of research in the form of interviews and literature studies, it can be concluded that the use of the Sleman SIKD has an influence on SPJ-shopping processing at the Regency Industry and Trade Department. The use of SIKD makes SPJ-shopping processing faster and easier so that annual budget absorption can be maximized.

The background of this service activity was the limited ability of Indonesian teachers teaching in Jeddah to write scientific journal articles, which was caused by low motivation and a lack of knowledge about good and correct article-writing techniques. This service aimed to equip teachers in Jeddah with the journal article writing skills needed for professional development. The main target of this activity was teachers in Jeddah. The methods applied in this service included online training and mentoring, with an in-service training (IST) and on-service training (OST) approach. The process of implementing activities included several stages, namely preparation, training, mentoring, monitoring, and evaluation. The results of this activity showed a significant improvement in the ability to write journal articles among teachers in Jeddah. They became more confident in their writing and were able to produce quality articles ready to be published in national journals.

This research aims to digitize the BOSP Financial Report of SMA Negeri 1 Yogyakarta through the School Financial Management Information System website. This is motivated by the condition of the SPJ administration which is still processed semi-manually, the wrong nominal input into the bank deposit receipt which results in failed transfers, and incorrect tax transfers (over/underpayment of taxes). The method used is qualitative with data collection techniques through observation, interviews, and documentation. Research procedures include: 1) making a flowchart of the financial transaction process, 2) designing the output format of the financial accountability letter, 3) simulating the school financial management information system accompanied by a programmer, 4) testing on three different users. The test results show that the financial management of SMA Negeri 1 Yogyakarta through the School Financial Management Information System produces output documentation of SPJ completeness automatically and can present real-time financial reports. It is expected that the School Financial Management Information System can improve the accuracy and achievement of the realization of BOSP fund absorption.

The rapid advancement of information technology has had a significant impact in various fields, particularly in pattern recognition and image processing. One of the ongoing challenges is accurately recognizing handwritten digits, which plays a crucial role in document digitization, automated form reading, and other intelligent systems. This study aims to implement and evaluate the K-Nearest Neighbors (KNN) algorithm, a simple yet effective classification technique, in recognizing handwritten digit images. The data used comes from the public dataset load_digits from Scikit-learn, which contains 1,797 grayscale images of handwritten digits sized 8x8 pixels. Each image is represented as a 64-dimensional feature vector. The dataset is split into training and testing data with an 80:20 ratio, and the model is trained using KNN with k=3. The experimental results show a classification accuracy of 96.94%, with minimal prediction errors that typically occur in digits with similar visual shapes, such as 5 and 9. This study demonstrates that KNN, despite its simplicity, can provide high accuracy in handwritten digit recognition when supported by proper preprocessing and parameter selection. The implications of this research highlight the potential for developing intelligent applications in education, data entry automation, and identity verification.

The child-friendly city program is one of the programs where an area implements a child rights-based development system by trying to integrate several aspects such as government and community commitment and supported by human resources which in implementing it is carried out systematically, structured and sustainable, both in terms of policies that regulate this, to programs or activities. This research tries to see how the implementation of the child-friendly city program in providing special protection for children in Serua Village, South Tangerang. The research approach is qualitative with data collection techniques, namely interviews and documentary studies. This research uses George Edward's implementation theory which includes 4 aspects, namely resources, communication, bureaucratic structure, and disposition. The results showed that the implementation of the child-friendly city program in Serua Village has several success factors that have been carried out well, namely disposition and bureaucratic structure. Disposition is carried out with synergized cooperation between stakeholders, while the bureaucratic structure is well displayed in the form of coordination in the implementation of the child-friendly city. Meanwhile, other aspects that should be improved are communication and resources. Communication in this case is in the form of lack of public awareness and understanding of the program, while resources are related to budget limitations.