UIN WALISONGO JOURNALS
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Comparative study of artificial Neural Network and Kalman Filter models for blood demand forecasting at PMI Surabaya
Get PDFBlood plays a vital role in human health, making the need for donors and transfusions crucial. Currently, the Indonesian Red Cross (PMI) in Surabaya faces a balance issue between blood supply and demand. To address this, a blood demand forecasting model has been created at the PMI using ANN with a 4% error rate. The Kalman Filter algorithm is known to significantly reduce prediction errors from the prediction and correction process, while an ANN is considered capable of handling data complexity and nonlinearity. Therefore, this study aims to analyze the performance of the ANN and Kalman Filter models and compare the model performance results to determine the model with the best performance level. The modelling uses the CRISP-DM method, which starts from data understanding, data preparation, data modelling, model evaluation, and forecasting. The results of this study indicate that the Kalman Filter model successfully minimizes errors compared to the ANN prediction results, achieving a model accuracy level reaching 93.1%. These results demonstrate that the Kalman Filter model can significantly reduce prediction errors in the prediction and correction process, making it more optimal than the ANN model in forecasting blood demand at the PMI in Surabaya
Mineralogical classification and impact simulation of the Punggur (H7-Melt Breccia) Meteorite, Indonesia
Get PDFMeteorite falls in Indonesia are rarely examined through systematic scientific analysis, resulting in limited documentation of fall events and incomplete classification of recovered specimens. The Punggur meteorite fall of 28 January 2021 reportedly produced at least five fragments. This study addresses that gap by analyzing two fragments (PM-01 and PM-02) to confirm their extraterrestrial origin and to characterize their physical, chemical, and mineralogical properties. Physical characterization involved measurements of density, magnetic susceptibility, and surface morphology. The chemical composition was determined using X-ray fluorescence (XRF), while microscopic imaging was employed to compare fusion-crust features with interior textures. A web-based meteoroid-impact modeling tool was further employed to estimate the atmospheric entry behavior and environmental effects of the fall. The result is that PM-01 has dimensions of 13 × 6.5 × 8 cm, a volume of 419 mL, a mass of 2200 g, and a density of 5.25 ± 0.26 g/cm³. PM-02 measures 25 × 23 × 16 cm, with a volume of 443 mL, a mass of 1820 g, and a density of 4.06 ± 0.06 g cm⁻³. Modeling results indicate that post-airburst fragments retained a residual velocity of approximately 16.2 km s⁻¹, while the airburst released an estimated 2.12 × 10¹⁰ J of energy (0.51 × 10⁻⁵ megatons). The shock wave reached observers 1.78 minutes after the event, accompanied by a maximum wind velocity of 0.0422 m s⁻¹ and sound levels near 25 dB—consistent with witness reports and the observed impact crater. Microscopic and XRF analyses reveal coarse-grained textures with high concentrations of Fe, Si, and Mg. PM-01 contains 23.55% Fe, 20.18% Si, and 12.48% Mg, whereas PM-02 contains 48.09% Fe, 25.06% Si, and 10.21% Mg. Thus, this finding indicates that the specimen’s mineralogy is dominated by olivine ((Mg, Fe)₂SiO₄), confirming that it aligns with the classification of an H7 melt breccia
MENAFSIRKAN KEMBALI AL-DAKHĪL: KRITIK EPISTEMOLOGIS TERHADAP UNSUR ISRĀ’ĪLIYYĀT DALAM TAFSIR AL-ṬABARĪ ATAS QS. AL-BAQARAH: 36
Get PDFPenelitian ini membahas fenomena al-dakhīl yaitu masuknya unsur-unsur asing dan riwayat yang tidak sahih dalam penafsiran surah al-Baqarah ayat 36 sebagaimana terdapat dalam Tafsir al-Ṭabarī. Ayat ini mengisahkan tentang kejatuhan Adam dan Hawa dari surga akibat godaan setan, dan sering kali dijelaskan melalui narasi yang dipengaruhi oleh tradisi Isrā’īliyyāt dan riwayat gharīb. Dengan menggunakan pendekatan kualitatif dan metode analisis isi (content analysis), penelitian ini mengkaji riwayat-riwayat yang dinukil oleh al-Ṭabarī, mengevaluasi sanad dan matannya, serta mengidentifikasi kemungkinan pengaruh narasi non-Islami dalam penyampaian tafsir. Hasil kajian menunjukkan bahwa sebagian riwayat dalam tafsir tersebut mengandung unsur al-dakhīl yang berasal dari tradisi Yahudi-Kristen dan kisah-kisah populer yang tidak dapat diverifikasi kesahihannya. Temuan ini menunjukkan pentingnya kritik terhadap sumber-sumber tafsir klasik untuk menjaga kemurnian makna al-Qur'an serta mendorong metode penafsiran yang lebih selektif dan berbasis validasi ilmiah terhadap riwayat. Penilaian terhadap unsur al-dakhīl dalam penelitian ini tidak didasarkan semata pada karakter “asing” atau “fantastik” suatu narasi, melainkan melalui kriteria ilmiah yang terukur. Kriteria tersebut meliputi (1) ketidaksesuaian sanad dengan kaidah keilmuan hadis (terdapat perawi majhūl, munqathi’, atau matrūk), (2) pertentangan matan dengan prinsip-prinsip akidah dan nash sahih, serta (3) adanya indikasi transfer naratif dari tradisi Yahudi-Kristen yang dapat dilacak secara tekstual melalui literatur Perjanjian Lama. Dengan demikian, pendekatan yang digunakan bersifat analitis dan kritis, menggabungkan metode klasik ilmu riwayat dengan pendekatan hermeneutik kontemporer yang menekankan validasi epistemologis dalam tafsir.
The Journey for Being Pro-feminist Male Ulama: A Study among Four Indonesian Ulama
Get PDFMale ulama have significantly influenced the feminist movement in Indonesia by providing religious interpretations that are attuned to women's experiences and actively addressing injustices faced by women. This research delves into the transformative journeys of four male ulama as they adopted pro-feminist stances and engaged with the feminist movement. Utilizing a phenomenological approach and in-depth interviews for data collection, the study focuses on how these ulama promote gender justice and embrace feminist principles. The findings reveal that the journey to pro-feminism for these ulama involves multiple phases: recognizing sensitizing events, cultivating feminist consciousness, reinforcing feminist values, and taking tangible actions against women's injustices. In their advocacy for gender justice, these ulama have crafted a methodology for interpreting religious texts that centers women's experiences as crucial to understanding faith. This interpretative approach not only supports a gender-just mindset but also seeks to integrate gender justice principles into daily practices. Ultimately, the study illustrates the essential roles male ulama play in fostering a pro-feminist environment and encouraging societal change regarding gender issues in Indonesia
The Effect of Providing Balanced Nutrition Education on Nutritional Knowledge, Diet, and Body Mass Index (BMI) in Adolescents
Get PDFObesity is an overnutrition problem that has not yet received special attention from the government or society. Adolescents are easily influenced by their peers. Providing balanced nutrition education to adolescents at SMA Negeri 1 Singosari using the peer education method is expected to improve nutritional knowledge, enhance dietary patterns, and reduce the overweight adolescents' body mass index (BMI). A screening was conducted among tenth-grade students, identifying 60 students with a BMI ≥25.1 kg/m². The instruments included a nutritional knowledge questionnaire, Semi-Quantitative Food Frequency Questionnaire (SQ-FFQ) to assess dietary patterns, weight and height measurements to determine BMI. The results showed an increase in knowledge scores; however, it was not statistically significant (p-value = 0.106). There was a significant effect on the reduction of adolescents' BMI (p-value = 0.023). Dietary patterns showed improvement in average daily intake, frequency of consumption, and food preparation methods, although the intake of plant-based proteins, vegetables, and fruits remained below the Balanced Nutrition Guidelines. The results of this study imply that balanced nutrition education using the peer tutor method can be an effective approach to reduce BMI and encourage healthier eating patterns in obesity adolescents
The Effectiveness of Spirulina in Restoring Body Weight in Anemia-Induced Female Wistar Rats
Get PDFOne of the most prevalent health problems in Indonesia is anemia, particularly among adolescent girls, where concerns about excessive weight gain may reduce adherence to iron supplementation. Spirulina is a potential alternative supplement rich in iron and nutrients that support hematopoiesis and may address these concerns. This study aimed to analyze the effect of spirulina supplementation on body weight in anemic adolescent female Wistar rats. This experimental study used 25 female Wistar rats divided into five groups: normal control (NC) received a standard BR diet, positive control (PC) received a low-iron diet to induce anemia, and three treatment groups received spirulina at doses of 25, 50, and 100 mg/kg body weight (T1–T3) for 21 days. Body weight was measured before anemia induction, after anemia induction, and following supplementation. The results showed a significant overall difference in body weight gain among the groups (p < 0.001), which was mainly driven by differences between the normal control and positive control groups. However, post hoc analysis indicated no significant differences in body weight gain between the positive control group and treatment groups 1, 2, and 3 (p > 0.05). Body weight in the treatment groups increased by 22.8–27 g, indicating recovery toward baseline values. Although these differences were not statistically significant, spirulina supplementation may contribute to anemia recovery, as reflected by improvements in body weight. In conclusion, spirulina shows potential as a nutritional supplementation strategy that does not induce excessive weight gain while supporting iron-related nutritional needs
Interferensi Bahasa dan Upaya Intervensinya dalam Pengajaran Mahārah Kitābah
No full textThis study aims to analyze the dynamics of interference and intervention in Arabic writing learning within an Islamic boarding school context. Conducted longitudinally over three years with 24 students at Al-Izzah Integrated Islamic Boarding School (IIBS) in Batu City, this research employed a descriptive qualitative approach under the frameworks of Cultural-Historical Activity Theory (CHAT) and Zone of Proximal Development (ZPD). Data were collected through classroom observations, students’ writing analysis, and in-depth interviews with Arabic teachers. The findings reveal that linguistic interference is not merely a structural error but rather a manifestation of the developmental nature of learners’ interlanguage systems. Pedagogical interventions such as authentic writing tasks, cultural scaffolding, and reflective mentoring were proven effective in reducing syntactic, semantic, and orthographic interference. The study highlights that language learning is a dialectical interaction among linguistic, psychological, and cultural factors. Theoretically, this research reinforces the Dynamic Theory of Interference–Intervention (DTII) as a comprehensive framework for foreign language education, while practically emphasizing the importance of developmental and metalinguistic awareness-based instructional strategies
Strategi pengembangan desain interior terhadap kenyamanan pemustaka di Perpustakaan Umum Daerah Kabupaten Lima Puluh Kota
Get PDFPurpose. This study examines development strategies to improve the comfort of use in the Regional Public Library of Lima Puluh Kota Regency. Library interior design is important in creating an environment that supports learning, and research, and enhances the visitor experience.
Methodology. This research uses a qualitative descriptive method. Data was collected through observation, interviews, and documentation.
Results and discussion. The development strategy for enhancing user comfort at the Lima Puluh Kota District Public Library includes optimizing interior design, such as functional layouts, comfortable materials, balanced lighting, stable air temperature, soothing wall colors, and flexible spaces to support learning and research activities. With a modern and user-friendly design approach, the library becomes not only a conducive learning space but also an inclusive social interaction hub.
Conclusions. The importance of interior design in creating an environment that meets user needs enhances the library's appeal as a center for learning. The library can further improve its services through modern interior design, the use of digital technology, facilities that promote comfort, community-based activities, and creative spaces to establish an inclusive and interactive library
The Evolution of Islamic Philanthropy in Indonesia’s Digital Age (2016–2023)
Get PDFZakat management institutions have changed the method of collecting Islamic philanthropic funds (zakāt, infāq, ṣadaqah [ZIS]) from conventional to digital by utilizing digital platforms. This article aims to describe the transformation by the National Board of Zakat Republic of Indonesia (BAZNAS RI) and the views of scholars regarding the expansion of the meaning of mustaḥiq in the Indonesian context. This research is a normative-empirical legal research with primary data from interviews and secondary data referring to the BAZNAS RI annual report for 2016-2025. After being collected, the data was analyzed using interpretation and description techniques. The results of this study indicate that digital ZIS collection has increased with an average growth of 32%, and its distribution has increased by an average of 30% per year from 2016 to 2023. Digital ZIS management has also had an impact on the expansion of the meaning of the five mustaḥiq groups in Indonesia, namely mu'allaf, riqāb, ghārimīn, sabīlillā, and ibn sabīl. Digital ZIS management needs to be socialized massively in the community. In addition, there needs to be a review of the effectiveness of digital-based productive zakat management for the following years. Likewise, extensive research on the meaning of mustaḥiq and zakat objects that have changed
Energy Waqf and the Environmental Crisis: Advancing Islamic Philanthropy for Sustainability
Get PDFThis study examines energy waqf as an innovative Islamic philanthropic approach to addressing the growing environmental crisis. Using a literature review methodology, the research explores how religious beliefs, cultural values, and institutional trust influence community acceptance and participation in energy waqf initiatives. The findings reveal that strong religious commitment and cultural norms significantly motivate individuals to engage in such projects, which are widely perceived as acts of environmental stewardship and community service. Additional drivers of participation include emotional and psychological factors, awareness of waqf benefits, and confidence in the credibility of managing institutions. The study highlights the importance of public education and transparent governance in strengthening community involvement and ensuring the sustainability of energy waqf programs. These insights offer valuable guidance for policymakers, religious leaders, and development practitioners aiming to promote climate action through Islamic social finance. Energy waqf emerges not only as a philanthropic tool rooted in Islamic principles but also as a viable strategy for advancing renewable energy adoption and fostering environmentally conscious communities