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Pendampingan dan Pemberdayaan UMKM Kopi melalui Penguatan Branding dan Manajemen Keuangan Sederhana di Desa Cane Toa Mawarni Mawarni; Fairus Fairus; Intan Sari
Indonesia Berdampak: Jurnal Pengabdian kepada Masyarakat Vol. 1 No. 2 (2025): JULI-DESEMBER
Publisher : Indo Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63822/m8hcze07

Abstract

Local coffee micro, small, and medium enterprises (MSMEs) in Cane Toa Village face several challenges, including the absence of a clear brand identity, limited financial management practices, and inadequate marketing strategies, which hinder their competitiveness and business sustainability. This community service activity aimed to strengthen the capacity of these local coffee MSMEs by enhancing business branding, providing guidance on simple financial record-keeping, and introducing basic product marketing strategies. The program employed a participatory approach, actively involving MSME actors as key partners throughout all stages, using interactive lectures, focused discussions, and hands-on practice. Implementation was carried out in three main stages: preparation and planning, implementation, and monitoring and evaluation, integrated with the student Community Service Program (KKN). The results demonstrated measurable improvements in participants’ competencies: all participants (100%) successfully developed basic branding elements including business names and simple logos, approximately 85% were able to independently maintain daily financial transaction records, and several participants began to apply structured product marketing strategies. Overall, the program effectively enhanced the professionalism and managerial capacity of local coffee businesses, contributed to economic self-reliance within the Cane Toa Village community, and provided a foundation for sustainable business development, although continued mentoring and institutional support are recommended to maintain long-term outcomes.        
Weather-Driven Loss Modeling for Rice Farmers' Losses Using Cobb-Douglas and VaR-ES Nurviana Nurviana; Amelia Amelia; Riezky Purnama Sari; Ulya Nabilla; Mawarni Mawarni; Masthura Masthura
ZERO: Jurnal Sains, Matematika dan Terapan Vol 9, No 3 (2025): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v9i3.26842

Abstract

Weather variability poses significant risks to rice production, leading to potential income losses for farmers and increased uncertainty in agricultural planning. This study integrates a Cobb-Douglas production function with Value at Risk (VaR) and Expected Shortfall (ES) measures to assess weather-driven production losses in Aceh Besar using secondary data on rainfall, temperature, and wind speed from 2010 to 2023. Rice production is first modeled to estimate output sensitivity to climatic factors, after which production losses are derived from forecast-based outcomes. Several candidate parametric probability distributions are fitted to the loss data, and the most suitable distribution is selected based on goodness-of-fit ranking. The results indicate that weather variables significantly reduce rice output and that the production process exhibits decreasing returns to scale. The selected distribution yields a potential loss of IDR 774,352 and an expected loss of IDR 940,160 per hectare at the 95% confidence level. These findings provide a quantitative basis for weather-based agricultural risk assessment and support evidence-based risk mitigation strategies for farmers and policymakers.
Pendampingan Usaha Pembesaran Kepiting Bakau pada Tambak Tradisional Untuk Meningkatkan Pendapatan Pokdakan Laot Berjaya di Kabupaten Aceh Tamiang Cut Gustina; Agus Putra AS; Afrah Junita; Fairus Fairus; Lilis Nurjanah; Ulya Nabilla; Mawarni Mawarni; Tri Rahmani
Al Khidma: Jurnal Pengabdian Masyarakat Al Khidma Vol. 6 No. 1 Januari - Maret 2026
Publisher : Sekolah Tinggi Ilmu Al-Qur'an (STIQ) Amuntai Kalimantan Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35931/ak.v6i1.5826

Abstract

Pokdakan Laot Berjaya mengelola usaha pembesaran dan pematangan telur kepiting bakau (Scylla sp.) di tambak tradisional. Namun, usaha ini menghadapi kendala utama berupa produksi yang belum optimal dan minimnya penerapan teknik budidaya yang efektif, sehingga menghambat inovasi dan menurunkan pendapatan mitra. Tujuan pengabdian ini adalah untuk mengedukasi kelompok Pokdakan Laot Berjaya mengenai mengenai inovasi teknologi tepat guna pada budidaya pembesaran kepiting bakau yang baik dan efektif, serta memberikan pelatihan kepada mitra teknologi budidaya pembesaran kepiting, sehingga diharapkan dapat meningkatkan jumlah produksi kepiting dan omset kelompok. Metode yang digunakan adalah metode partisipatif dengan sosialisasi dan workshop teknologi tepat guna dengan memanfaatkan pipa paralon untuk budidaya pembesaran kepiting bakau. Hasil pengabdian menunjukkan 90% mitra setuju bahwa penngabdian ini sangat bermanfaat untuk mitra, 84% mitra memahami menganai inovasi teknologi tepat guna pada budidaya pembesaran kepiting bakau yang baik dan efektif, 85% mitra memahami dan terampil menerapkan budidaya kepiting dengan pipa paralon, 70% mitra mengalami peningkatan omset.
Error analysis of mathematics students in solving mathematical finance problems Intan Sari; Mawarni Mawarni
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 13 No 2 (2025)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v13i2.19873

Abstract

Mathematical Finance is a course in the Mathematics Study Program. This course is highly useful in both the workplace and everyday life. However, the results of the student’s final exams (UAS) show unsatisfactory outcomes. This research is a descriptive qualitative study that aims to identify the types of errors in students' answers when solving Financial Mathematics final exams. The subjects of this research are students in the even semester of the Mathematics study program at Universitas Samudra. The data collection technique in this research is a test. The results showed that the standard errors found in students' answers were concept errors, namely errors due to students not understanding the concept, as well as procedural errors, which occurred when students had difficulty in linking concepts to the steps of the process. Additionally, there is a slip error that occurs when students are in a hurry to solve the problem, although this error is not dominant. This study concludes that a lack of conceptual understanding and procedural mainly causes students difficulties in Mathematical Finance. These findings contribute to the development of effective learning strategies and the creation of teaching materials by emphasizing the importance of understanding concepts and procedures in problem-solving.
SISTEM PENDUKUNG KEPUTUSAN PENILAIAN KINERJA GURU MENGGUNAKAN IMPROVED K-MEANS CLUSTERING DAN METODE SAW Mawarni Mawarni; Fitri Rezky Hamzani; Ulya Nabilla; Intan Sari; Masthura Masthura
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol. 9 No. 3 (2026): June 2026
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v9i3.6707

Abstract

Abstract: School A Banjarmasin is a boarding school that motivates teachers through exemplary teacher selection and salary increases based on performance clusters. However, in 2022–2023, teacher performance appraisal was not conducted due to the absence of a supporting system and historical performance data, resulting in equal salary increases. To address this issue, this study proposes the development of a Decision Support System (DSS) that integrates Improved K-Means Clustering for grouping salary increases and the Simple Additive Weighting (SAW) method for determining exemplary teachers. The system is implemented using Visual Basic for Applications (VBA) in Microsoft Excel. The data used in this study consist of teacher performance assessment results for the 2023/2024 academic year, evaluated across four assessment dimensions comprising eleven criteria. The DSS produces two outputs. Based on school-defined standards, two outputs were generated. The first output indicates suboptimal performance, with three populated clusters, while the fourth cluster contains no members due to data distribution. The second output represents the author's recommended clustering, with a silhouette score evaluation value of 0.5125, indicating optimal visibility between clusters, ensuring four salary increase clusters. Overall, the proposed DSS provides more accurate, objective, and systematic calculations and rankings, thereby supporting decision makers in evaluating teacher performance and determining salary increases more effectively. Keywords: k-means clustering, simple additive weighting (SAW), teacher performance assessment, VBA Excel   Abstrak: Sekolah A Banjarmasin merupakan sekolah berasrama yang memotivasi guru melalui pemilihan guru teladan dan kenaikan gaji berdasarkan klaster kinerja. Namun, pada tahun 2022–2023, penilaian kinerja guru tidak dilaksanakan karena ketiadaan sistem pendukung dan data historis kinerja, sehingga kenaikan gaji diberikan secara merata. Untuk mengatasi masalah ini, penelitian ini mengusulkan pengembangan Sistem Pendukung Keputusan (SPK) yang mengintegrasikan metode Improved K-Means Clustering untuk pengelompokan kenaikan gaji dan metode Simple Additive Weighting (SAW) untuk menentukan guru teladan. Sistem ini diimplementasikan menggunakan Visual Basic for Applications (VBA) pada Microsoft Excel. Data yang digunakan dalam penelitian ini mencakup hasil penilaian kinerja guru tahun ajaran 2023/2024, yang dievaluasi berdasarkan empat dimensi penilaian yang terdiri dari sebelas kriteria. Sistem ini menghasilkan dua keluaran. Keluaran pertama menunjukkan kinerja yang kurang optimal, dengan tiga klaster yang terisi, sementara klaster keempat tidak memiliki anggota akibat distribusi data. Keluaran kedua merepresentasikan hasil pengelompokan yang disarankan oleh penulis, dengan nilai evaluasi silhouette score sebesar 0,5125 yang menunjukkan pemisahan optimal antar-klaster serta memastikan terbentuknya empat klaster kenaikan gaji. Secara keseluruhan, SPK yang diusulkan memberikan perhitungan dan pemeringkatan yang lebih akurat, objektif, dan sistematis, sehingga membantu pengambil keputusan dalam mengevaluasi kinerja guru dan menentukan kenaikan gaji secara lebih efektif. Kata kunci: k-means clustering, simple additive weighting (SAW), penilaian kinerja guru, VBA Excel