Open Journal Unimal (e-Jurnal Universitas Malikussaleh)
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Time series analysis and forecasting of Nigerian marine fish catch (1960-2015) using ARIMA models
Get PDFA 56-year (1960 to 2015) catch data of Nigerian marine fisheries was analysed, and an ARIMA (3,1,3) model was employed to generate a short-term forecast (2016–2045). The Akaike information criterion (AIC), Schwarz information criterion (SIC), and Hannan-Quinn criterion (HQC) in conjunction with the log likelihood (Log L) and R2 statistics were employed to select the optimal model for the time series. Similarly, three benchmarks were considered: Root Mean Square Error (RMSE), Mean Absolute Error (MAE) and Theil Inequality Coefficient (TIC) to compare the in-sample and out–of–sample forecasts\u27 performances of the estimated ARIMA (3,1,3) model, evaluating its forecasting ability and determining which forecast is superior for the model. The forecast results indicated that, everything remaining equal, approximately 27,021,461 metric tons of marine fish will be caught in Nigeria between 2016 and 2045 with an annual average of 900,715 metric tons. Temporal pattern of the forecasted data exhibited inherent fluctuations and an upward trend, similar to the original data. These fluctuations in catch trends are attributed to various factors, such as government policy, piracy, illegal activities of foreign trawlers, war conflicts, and the remote location of fishing villages. To obtain robust and reliable data from Nigerian marine fisheries, the negative impacts of these factors must be mitigated
Peningkatan Kemampuan Berpikir Kreatif Matematis Siswa SMP Melalui Penerapan Pendekatan Somatic, Auditory, Visualization, Intellectualy
Get PDFKemampuan berpikir kreatif matematis siswa masih rendah dikarenakan siswa pada saat pembelajaran terlalu berfokus pada hafalan dan rumus serta metode mengajar masih satu arah. Oleh karena itu, pendekatan SAVI (Somatic, Auditory, Visualization, Intelectually) adalah pendekatan yang tepat untuk melatih siswa dalam meningkatkan kreativitas matematika dan kemampuan berpikir kreatif mereka dengan cara yang interaktif dan menarik. Tujuan dari penelitian ini adalah untuk mengetahui apakah peningkatan kemampuan berpikir kreatif matematis siswa dengan menggunakan pendekatan SAVI yang diajarkan pada materi teorema Pythagoras lebih baik daripada pendekatan saintifik. Dengan menggunakan pendekatan quasi experimental dengan metode penelitian kuantitatif. Populasdalam penelitian ini adalah semua siswa kelas VIII dari SMP Negeri 2 Peusangan. Kelas VIII/2 berperan sebagai kelompok eksperimen dan kelas VIII/3 sebagai kelompok kontrol, pengambilan sampel berdasarkan purposive sampling. Pengujian hipotesis menggunakan independent sampel t test dengan taraf signifikan 0,05. Pengujian hipotesis data awal dan posttest menghasilkan nilai signifikan sebesar 0,000. Sesuai dengan kriteria pengujian hipotesis Asymp Sig. 2-tailed <0,05 dengan demikian terdapat peningkatan yang signifikan pendekatan SAVI terhadap kemampuan berpikir kreatif matematis siswa
Penerapan Augmented Reality Sebagai Inovasi Media Ajar Untuk Meningkatkan Minat Belajar Siswa
Get PDFPermasalahan rendahnya minat belajar siswa masih menjadi tantangan utama dalam proses pembelajaran di sekolah. Media pembelajaran yang bersifat konvensional cenderung kurang menarik dan tidak mampu menumbuhkan keterlibatan aktif siswa. Oleh karena itu, tujuan dari penelitian ini untuk menganalisis pengaruh penerapan Augmented Reality (AR) sebagai inovasi media pembelajaran terhadap peningkatan minat belajar siswa. Jenis penelitian yang digunakan adalah eksperimen kuantitatif dengan desain Pretest-Posttest Control Group Design. Sampel penelitian melibatkan 65 siswa kelas XII SMA Negeri 6 Lhokseumawe yang terbagi menjadi dua kelompok: kelas eksperimen menggunakan media berbasis AR dan kelas kontrol menggunakan media konvensional. Data dikumpulkan melalui angket minat belajar sebelum dan sesudah perlakuan, kemudian dianalisis menggunakan uji Mann-Whitney. Hasil penelitian menunjukkan bahwa nilai rata-rata N-gain minat belajar siswa pada kelas eksperimen sebesar 0,771 lebih tinggi dibandingkan dengan kelas kontrol sebesar 0,402 dengan nilai signifikansi 0,000 < 0,05. Hal ini membuktikan bahwa penerapan media berbasis Augmented Reality berpengaruh signifikan terhadap peningkatan minat belajar siswa. Pembelajaran dengan AR menciptakan pengalaman yang interaktif, menarik, dan kontekstual sehingga mampu meningkatkan motivasi dan partisipasi aktif siswa
Transformasi Perilaku Konsumen: Dampak Shopeefood Terhadap Eksistensi Pasar Tradisional: Transformation of Consumer Behavior: The Impact of ShopeeFood on the Existence of Traditional Markets
Get PDFThis study aims to comprehensively analyze the transformation of consumer behavior from physical (offline) shopping to online food delivery services, as well as its implications for the existence of traditional markets. Using a phenomenological qualitative approach, the research seeks to understand the subjective experiences of both consumers and traders. Data were collected through in-depth interviews with active digital consumers and market vendors. The findings show that instant convenience, perceived promotional value, and time efficiency are the primary drivers of this behavioral transformation, leading to a decline in the frequency of visits to traditional markets. The main impact is a shift in the role of traditional markets—from centers for fulfilling daily needs to venues for purchasing specific commodities or serving as social spaces. This study recommends an omni-channel adaptation strategy that involves strengthening both the digital and non-digital infrastructures of traditional markets
Implementasi Media Sosial sebagai Alat Publikasi dan Branding Perusahaan Properti: Pengalaman PKL di PT Karya Pesona Nusantara: The Implementation of Social Media as a Publication and Branding Tool in a Property Company: A Field Work Practice Experience at PT Karya Pesona Nusantara
Get PDFThis study aims to analyze the implementation of social media as a publication and branding tool in a property company through a case study of Field Work Practice experience at PT Karya Pesona Nusantara. The property industry is a sector that heavily relies on credibility, transparency, and reputation; therefore, the utilization of social media has become an essential strategy for building public trust. This research employs a descriptive qualitative approach based on direct observation, visual documentation, and participatory experience over a six-week period within the company environment. The results indicate that visual content in the form of photos, videos, and marketing narratives serves as the primary instrument in shaping the company’s image as a professional, progressive, and transparent developer. Such visual content is effective in presenting real-time construction progress, showcasing on-site activities, and delivering storytelling that strengthens corporate identity. The challenges encountered include limitations in documentation equipment, multi-level content approval processes, and the need to align with corporate visual standards; however, these challenges can be addressed through intensive coordination and design adjustments. This study confirms that synergy between digital strategies and on-site activities is a crucial factor in building the reputation of property companies in an increasingly dynamic digital competition er
Pemakmuran Masjid Berbasis Pemberdayaan Ekonomi Umat: Sugiharto, Salsabilla Erza, Muhammad Rafa Desna, Zahra Parisya, Nanda Maulana Azkari, Lutfiyana
No full textCommunity empowerment is a strategic step to enhance the dignity and quality of life of society through strengthening the role of mosques. Mosques should not be narrowly viewed merely as places for ritual worship, but must be revitalized as centers of civilization encompassing spiritual, social, and economic dimensions. The ideal concept of mosque development integrates two main aspects: physical development and non-physical development. Physically, mosques are expected to provide inclusive and comfortable facilities for congregants, while non-physically, mosques should function as centers of education and social solutions for the surrounding community. In this transformation process, students and youth organizations play a crucial role as agents of change. With their intellectual energy, young people can drive educational activities, ranging from regular religious studies to skill-based training relevant to contemporary challenges. The presence of students can transform mosques into dynamic spaces, where the spirit of preaching is conveyed not only verbally but also through concrete actions, such as social service and community mentoring
A Comprehensive Analysis of Regulation, Contractual Frameworks, and Practical Challenges of Sharia Fintech in Indonesia
Get PDFThis article explores the development of Islamic fintech in Indonesia from conceptual, regulatory, and contractual perspectives, as well as practical operational challenges and the role of fatwas issued by the National Sharia Council of the Indonesian Ulema Council (DSN-MUI) in ensuring Sharia compliance. The research adopts a literature review approach and policy document analysis, including regulations issued by Bank Indonesia and the Financial Services Authority (OJK), as well as DSN-MUI fatwas. The findings indicate that although the conceptual foundations of Islamic fintech—based on profit-and-loss sharing principles and the prohibition of riba and gharar—are well established and supported by fatwas, implementation faces significant challenges. These include regulatory harmonization among authorities, the validity and adaptation of traditional contracts to digital contexts, consumer protection, technology governance (e.g., smart contracts), and the need for operational Sharia compliance standards. This article recommends greater alignment of regulatory frameworks among relevant authorities, the development of technical guidelines for digital contracts, more operational Sharia compliance certification mechanisms, and the strengthening of consumer literacy and protection
Pengaruh Simpanan Pokok Anggota dan Pinjaman Mudharabah Terhadap Perolehan Sisa Hasil Usaha pada KSPPS Nur Insani
Get PDFConsidering the significance of members’ principal savings as a primary source of capital and mudharabah financing as an income-generating instrument for cooperatives, examining the impact of these two variables on the Remaining Operating Results (Sisa Hasil Usaha / SHU) is highly relevant. This study aims to provide empirical evidence regarding the extent to which members’ principal savings and mudharabah financing contribute to determining the level of SHU at KSPPS Nur Insani. This research employs a quantitative method with a descriptive-associative approach, intended to analyze the relationships and effects among the research variables. The results of the partial t-test indicate a significance value of 0.724, which is greater than α = 0.05. Accordingly, H₀₁ is accepted and H₁ is rejected, indicating that, partially, members’ principal savings do not have a significant effect on SHU at KSPPS Nur Insani. Furthermore, the partial t-test for mudharabah financing shows a significance value of 0.199, which is also greater than α = 0.05. Based on this result, H₀₂ is accepted and H₂ is rejected, suggesting that mudharabah financing does not have a significant partial effect on SHU. The simultaneous F-test yields a significance value of 0.277, which exceeds α = 0.05. Therefore, H₀₃ is accepted and H₃ is rejected, indicating that members’ principal savings and mudharabah financing simultaneously do not have a significant effect on SHU. Nevertheless, the R-square value of 0.723 suggests that these two variables collectively account for 72.3% of the variation in SHU, although this contribution does not reach statistical significance due to limitations in the sample size
Analisis Tingkat Pemahaman Mahasiswa Terhadap Akad Ijarah: Studi Kasus Pada Mahasiswa: Analysis of Students’ Level of Understanding of the Ijarah Contract: A Case Study of Students
Get PDFThis study analyzes students’ understanding of the ijarah contract and tests the effect of curriculum–based education (X1) and personal Islamic financial literacy (X2) on ijarah understanding (Y). The research used a quantitative descriptive–verificative method with purposive sampling. Data were collected via online questionnaires. From 67 questionnaires, 44 were analyzed. Results show all items are valid and reliable. Regression model Y = -2.162 + 0.595X1 + 0.878X2 + e indicates both variables have a positive and significant effect on students’ understanding. R² = 0.761 means 76.1% of students’ understanding is explained by curriculum education and personal Islamic financial literacy. In conclusion, better learning and higher Islamic financial literacy lead to stronger understanding of the ijarah contract
Formulasi dan Evaluasi Obat Kumur Fraksi Etil Asetat Daun Sirih Cina (Peperomia Pellucida (L.) Kunth) Dan Uji Aktivitas Antioksidan Dengan Metode DPPH
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Karies gigi disebabkan oleh berkembangnya lubang kecil sampai merusak bagian dalam gigi, sehingga dapat mengganggu aktifitas sehari-hari seperti mengunyah, menggigit, dan berbicara. Berdasarkan faktor risiko karies gigi tinggi yaitu menggunakan obat kumur sebagai perawatan tanpa operasi. Daun sirih cina (Peperomia pellucida (L.) Kunth) dapat digunakan sebagai antipiretik, antiinflamasi, gastroprotektif, antioksidan, dan antibakteri. Penelitian ini bertujuan untuk mengetahui pengaruh variasi konsentrasi terhadap mutu fisik, kategori IC50, dan uji hedonik formulasi dan evaluasi obat kumur fraksi etil asetat daun sirih cina (Peperomia pellucida (L.) Kunth) dalam menghambat kerusakan sel akibat radikal bebas. Penelitian ini dilakukan secara eksperimental laboratorium dengan metode DPPH (1,1-diphenyl-picrylhydrazyl). Hasil penelitian menunjukkan bobot jenis F1 diperoleh hasil yang melebihi syarat, dan uji pH pada F0 diperoleh hasil yang melebihi syarat, aktivitas antioksidan pada F0 (tanpa penambahan ekstrak) diperoleh IC50 581.972 ppm, F1 (8%) diperoleh IC50 159.303 ppm, F2 (10%) diperoleh IC50 123.941 ppm, dan F3 (12%) diperoleh IC50 73.1378 ppm. Berdasarkan uji hedonik panelis menyukai Formula 2. Hasil yang diperoleh menunjukkan bahwa F3 dengan konsentrasi 12% dapat digunakan sebagai alternatif penggunaan obat kumur dengan kategori antioksidan yang kuat