This study aims to enhance the environmental awareness of orphanage children in Banjarmasin by educating them on the fundamental concepts of photosynthesis and its crucial role in sustaining life. Through interactive and participatory learning sessions, the program sought not only to impart scientific knowledge but also to foster a sense of environmental responsibility and stewardship. The research employed a qualitative approach, involving observation, interviews, and pre- and post-learning assessments to measure changes in understanding and attitude. Findings indicated a significant improvement in both the children’s comprehension of photosynthesis and their awareness of environmental issues. This suggests that targeted educational interventions can effectively bridge the gap between scientific knowledge and environmental consciousness among young learners in under-resourced communities.

Extreme climate change in Indonesia, caused by air pollution from the use of fossil energy, has encouraged the development of renewable energy technology, including Wind Power Plants (PLTB). This technology is increasingly important for providing clean energy, especially in the maritime industry. The aim of this applied scientific work is to provide a battery charging solution when the emergency battery charger charging system on commercial ships experiences problems. To make it easier to monitor the power produced by wind power plants and also battery capacity via a smartphone application in real time. The method used in this applied scientific research research is experimental. The results of calculating the average power during testing at night show an average power of 10.22 Watt/min and an average current of 0.78 A. So it can be concluded that battery charging takes 11.53 hours. Meanwhile, the results of calculating the average power during testing during the day show an average power of 13.41 Watt/min and an average current of 1.02 A. So it can be concluded that charging the battery lasts for 8.82 hours. From the two data obtained, it can be concluded that charging is optimal during the day because the efficient charging time is 8.82 hours.

Posyandu merupakan program kesehatan berbasis masyarakat yang bertujuan untuk mendukung kesehatan ibu dan anak melalui layanan seperti imunisasi, pemantauan tumbuh kembang, dan pemberian makanan tambahan. Meskipun memiliki peran strategis, partisipasi warga seringkali rendah, seperti yang terjadi di Posyandu Kenanga 2 RW.07 Kelurahan Harapan Mulya. Penelitian ini bertujuan mengidentifikasi kesadaran dan partisipasi warga dalam mendukung program Posyandu. Metode yang dilakukan dimulai dari tahap satu yaitu berdiskusi dengan kader posyandu mengenai program rendahnya kesadaran dan partisipasi untuk mengikuti program Posyandu, tahap ke dua yaitu diskusi interaktif  dengan media pendukung seperti poster dan standing banner serta pembuatan video kreatif yang disebar melalui media sosial, dan tahap ke tiga yaitu evaluasi berupa pendataan warga kampanye persuasif dilaksanakan. Hasil yang didapatkan menunjukkan  adanya peningkatan partisipasi masyarakat sebesar 62% yang sebelumnya hanya 38%. Hal ini terbukti adanya peningkatan jumlah hadir para ibu dan balita dengan adanya kampanye.

Pendapatan negara sebagian besar berasal dari pajak, yang berperan penting dalam stabilitas ekonomi dan pembangunan nasional. Meskipun rasio kepatuhan formal dalam penyampaian Surat Pemberitahuan (SPT) Tahunan terus meningkat, masih banyak Wajib Pajak yang mengalami kendala dalam pengisian dan pelaporannya, terutama melalui e-Filing. Salah satu penyebab utama adalah keterbatasan pengetahuan perpajakan serta minimnya pendampingan dalam proses pelaporan pajak. Untuk mengatasi permasalahan ini, PKN STAN bekerja sama dengan KPP Pratama Pondok Aren mengadakan program pengabdian masyarakat bertajuk “Optimalisasi Kepatuhan Pajak dan Peningkatan Pengetahuan Masyarakat Melalui Pendampingan Penyampaian SPT Tahunan Orang Pribadi Tahun 2024.” Kegiatan ini dilaksanakan dari Februari hingga Juni 2024 dengan metode sosialisasi dan pendampingan langsung kepada Wajib Pajak Orang Pribadi. Hasil kegiatan menunjukkan bahwa program ini berkontribusi dalam meningkatkan pemahaman dan kepatuhan Wajib Pajak dalam memenuhi kewajiban perpajakannya. Keberhasilan ini menegaskan bahwa kolaborasi antara akademisi dan instansi perpajakan efektif dalam meningkatkan literasi pajak masyarakat. Oleh karena itu, program serupa direkomendasikan untuk diterapkan secara berkelanjutan guna mendukung optimalisasi penerimaan negara melalui pajak.

. The Framingham Risk Score (FRS) assesses coronary heart disease (CHD) risk and predicts acute coronary events. Metabolic markers like LDL cholesterol, fasting blood glucose, uric acid, triglycerides, and TG/HDL ratio play critical roles in atherosclerosis and cardiovascular risk. Elevated LDL cholesterol, fasting blood glucose, and uric acid contribute to plaque formation, inflammation, and vascular damage, while high triglycerides and low HDL cholesterol exacerbate atherogenesis. This study explores the relationship between these markers and FRS to enhance CHD risk prediction and support targeted cardiovascular interventions. This study analyzed LDL cholesterol, fasting blood glucose, uric acid, triglycerides, and TG/HDL ratio with Framingham Risk Score in 85 participants, excluding those with incomplete data or chronic illnesses. The analysis found significant correlations between metabolic parameters and the 10-year myocardial infarction risk. LDL cholesterol, triglycerides, and uric acid showed moderate positive associations with cardiovascular outcomes, while the triglyceride-to-HDL ratio and fasting blood glucose had weaker but significant correlations. These findings highlight lipid profiles and metabolic markers as key contributors to cardiovascular risk. This study highlights significant correlations between LDL cholesterol, fasting blood glucose, uric acid, triglycerides, and the triglyceride/HDL ratio with 10-year cardiovascular risk. These findings emphasize the importance of lipid profiles, glycemic control, and metabolic markers in predicting coronary outcomes and guiding targeted preventive interventions for improved cardiovascular risk management.

This study aims to develop a mathematics module on the infinite limit material of algebraic functions to improve critical thinking skills of phase-F students at SMA Muhammadiyah 1 Sleman. The study used the ADDIE development model which includes five stages: Analysis, Design, Development, Implementation, and Evaluation. Data were collected through material and media expert validation questionnaires, student response questionnaires, and pretest and posttest tests. The validation results showed that the module was classified as very valid, with an average score of 71 from material experts and 103 from media experts. The student response questionnaire produced a practicality score of 72.6, indicating that the module was practical to use. The effectiveness test was carried out using the normality test and paired sample t-test using SPSS-25, which showed a significant increase (p <0.05) in student learning outcomes. The average pretest score of 58.22 increased to 84.27 in the posttest, with an n-Gain value of 0.64 which is classified as moderate. This module also improved scores on all indicators of students' critical thinking. Thus, the developed e-module is declared valid, practical, and effective in improving students' conceptual understanding and critical thinking skills

Worldwide trade is conducted 80% through maritime routes, including the export and import of coal. Coal is a non-renewable energy source, often used as fuel for power plants. As technology advances, detecting metal contaminants in coal cargo becomes crucial to prevent contamination of coal with metal materials. This study aims to (1) understand the operation of a conveyor in transporting coal, and (2) assess how the Proximity inductive sensor detects metal presence. The methods used in this research include real data analysis and literature review, conducted aboard the ship. The researcher designed and developed a prototype system for this purpose. The Proximity inductive sensor is utilized to detect metal contaminants, such as aluminum, iron, and stainless steel, among the coal cargo. The research was carried out during sea practice (prola) aboard the WHS ISKANDAR 1. The findings indicate that the conveyor is driven by a DC motor, and the Proximity inductive sensor effectively detects metals to separate them from the coal cargo, thus purifying the coal from metal contaminants.

The Baitul Arqam program, held at SMA Muhammadiyah Mlati on March 19-20, 2025, aimed to strengthen Islamic identity and build the moral integrity of the participants. The program involved various educational activities, such as discussions on Muhammadiyah ideology, worship training, forums on Islamic values, and reflective activities. It focused not only on theory but also on spiritual experiences that heightened religious awareness. The program was conducted in three main stages: preparation, implementation, and evaluation. The methods used included lectures, role-playing simulations, and discussions. The results of the implementation showed success in motivating participants to delve deeper into Muhammadiyah values, with high enthusiasm throughout the event. Participants also expressed great benefits in preparing themselves to become better Muhammadiyah cadres. Evaluation was carried out using a non-test approach, encompassing cognitive, affective, and psychomotor aspects. The success of this activity highlights the importance of careful planning and good coordination in supporting the strengthening of character and religious understanding among students. This program is expected to be held regularly to prepare future generations who are more committed to the values of the organization

This study seeks to investigate and acquire insights regarding the legal validity of the sale and purchase deed associated with Letter C and the impact of land erosion on land rights owners. The foundation of this research stems from the transaction involving the deed of sale and purchase of Letter C, carried out by the Land Deed Official, who overlooked the measurement of the Letter C land when transferring rights from one person to another. The significance of this research lies in addressing the issues that arise in various places in the archipelago are increasingly complex and increasingly varied, especially regarding the ownership of land rights with Letter C status, which do not have legal certainty over their ownership rights. This research employs the Normative Juridical approach, which analyzes literature documents and related regulations while emphasizing the duties and permits of PPAT, so that it will provide the right answers regarding land rights problems and literacy to the community regarding land rights ownership. The results of this study explain that Letter C land sale and purchase transactions that are not accompanied by measurements and are not immediately certified have the potential to cause disputes and difficulties in proving land rights because there are legal loopholes, so owners must confirm the validity of ownership of land rights. The novelty of this research lies in the analysis of cases that occurred in Bogor Regency, illustrating the consequences of the incident, so that it can provide a solution so that the Letter C land that is still circulating in the community can immediately change its land rights status to provide security in land ownership.
 
Penelitian ini bertujuan untuk menggali serta mendapatkan pengetahuan tentang keabsahan akta jual beli Letter C serta dampak dari terkikisnya tanah bagi pemilik hak atas tanah. Dasar penelitian ini berasal dari transaksi akta jual Beli Letter C yang disusun oleh Pejabat Pembuat Akta Tanah (PPAT) tanpa memperhatikan pengukuran tanah Letter C yang dialihkan haknya dari satu individu ke individu lainnya. Urgensi dari penelitian ini adalah permasalahan yang terjadi diberbagai tempat di Nusantara semakin kompleks dan semakin variatif khususnya tentang kepemilikan hak atas tanah yang berstatus Letter C yang tidak mendapatkan kepastian hukum atas hak kepemilikannya. Penelitian ini menerapkan metode Yuridis Normatif dengan menganalisis dokumen literatur dan peraturan yang relevan serta memperjelas tugas dan kewenangan PPAT, sehingga penelitian ini akan memberikan jawaban yang tepat mengenai permasalahan hak atas tanah serta meningkatkan literasi terkait kepemilikan hak atas tanah kepada masyarakat. Temuan dari penelitian ini menunjukkan bahwa kegiatan jual beli tanah Letter C yang tidak disertai pengukuran dan tidak segera disertifikatkan berpotensi menyebabkan sengketa serta kesulitan pembuktian hak atas tanah karena terdapat celah hukum, sehingga pemilik harus mempertegas validitas kepemilikan hak atas tanah. Kebaruan dalam penelitian ini dijelaskan dalam analisis dari kasus yang terjadi di Kabupaten Bogor yang menjabarkan dampak dari peristiwa tersebut, sehingga dapat memberikan solusi agar tanah Letter C yang masih beredar dalam masyarakat segera diubah status hak atas tanahnya untuk memberikan keamanan dalam kepemilikan tanah.

To improve the quality of education and learning in learning speaking in the English Education Department. Consideration of the lack of confidence in students caused by not knowing how to perform appropriately and well to appear confident to improve their speaking skill is also supported by the existence of appropriate learning media and can facilitate both students and teachers in learning to speak.  Therefore, researchers conducted research and development of Speech Practice book learning media namely “A Guide Speech Practice Book to Elevate Your Performance” The research aims to describe the design development and feasibility of the product. This type of research is Research and Development (R&D) which follows the procedure of Borg and Gall. Which includes ten stages and then simplified into five stages which include: need analysis, product development, expert validation, product try-out, and final product. After going through several stages, the product feasibility assessment was started based on the results of experts which included content experts and design expert. Based on validation from the content expert with an average value of 4.6 with a percentage of 92% with a very feasible category. The results of validation from design expert get an average value of 4.5 with a percentage of 90% with a very feasible category. Then the product validation results of student responses get a total score of 3064 with a percentage of 94.2% with a category very feasible. based on the results of research and field tests that have been described, it can be concluded that the speech practice book for students speaking skill at the English Education Department is very feasible to use for speaking learning.