e-Publikasi Ilmiah Unwahas (Universitas Wahid Hasyim)
Not a member yet
4995 research outputs found
Sort by
POTENTIAL OF MAGNETITE (Fe₃O₄) SYNTHESIZED FROM ZIRCON SAND WASTE AS METHYLEN BLUE DYE ADSORBENT
No full textZircon sand mining is a major industry in Indonesia due to the country's vast zircon reserves. However, this industry also generates hazardous waste that can pollute the environment. This study aims to investigate the potential of magnetite (Fe₃O₄) synthesized from magnetic waste generated during zircon sand mining as an adsorbent for methylene blue dye removal. Magnetite was successfully synthesized via the co-precipitation method and characterized using XRD and FTIR. The synthesized magnetite demonstrated the ability to adsorb methylene blue from aqueous solutions with an adsorption efficiency of 68.52% after 80 minutes of contact time. The adsorption kinetics followed the pseudo second order model, evidenced by R² value of 0.9918, and the adsorption isotherm fitted the Langmuir model, indicating adsorption energy of 24.51 kJ/mol and adsorption capacity of 69.678 mg/g. These findings demonstrate the effectiveness of natural magnetite (Fe₃O₄) derived from zircon sand waste as an adsorbent for methylene blue dye removal. This research not only addresses the environmental issue caused by zircon sand mining waste but also develops a cost-effective and sustainable solution for methylene blue dye removal from wastewater
FORMULASI DAN AKTIVITAS TABIR SURYA LIPBALM EKSTRAK DAUN PEGAGAN (Centella asiatica (L.) Urban)
No full textEkstrak daun pegagan mempunyai kandungan flavpnoid yang dapat berpotensi sebagai tabir surya pada bibir. Penelitian ini bertujuan untuk mengetahui pengaruh perbedaan konsentrasi ekstrak daun pegagan pada formulasi lipbalm terhadap karakteristik fisik dan aktivitas tabir surya sediaan. Formulasi lipbalm ekstrak daun pegagan dibuat dengan variasi konsentrasi ekstrak yaitu 5%, 10% dan 15%. Lipbalm yang diperoleh selanjutnya dilakukan pengujian karakteristik fisik yaitu organoleptis, homogenitas, pH, titik leleh serta aktivitas tabir surya. Lipbalm ekstrak daun pegagan pada semua formula berwarna coklat, bau oleum rosae, tekstur semi padat dan homogen. Peningkatan konsentrasi ekstrak daun pegagan berpengaruh meningkatkan pH dan menurunkan titik leleh. Formula dengan penambahan konsentrasi ekstrak daun pegagan sebesar 15 % memiliki karakteristik fisik yang paling baik serta nilai SPF paling tinggi sebesar 14,67( maksimal).Kata kunci: daun pegagan, lipbalm, SPF, tabir sury
REKONSTRUKSI REGULASI JAMINAN FIDUSIA PADA PEMBIAYAAN MURABAHAH DAN RAHN TASJILY
No full textLaws are rules that are standard and binding. In this case, this also applies to the implementation of the Baitul Maal Wat Tamwil Sharia Financing Savings and Loans Cooperative, which is a cooperative whose business activities include savings, loans and financing. So the rules need to be in accordance with sharia principles. In murabahah and Rahn Tasjily financing, there is an additional binding, namely a fiduciary guarantee, which is a debt and receivables agreement from the Baitul Maal Wat Tamwil Sharia Financing Savings and Loans Cooperative to customers which involves guarantees. The collateral is still under the control of the collateral owner. However, to ensure legal certainty for the Baitul Maal Wat Tamwil Sharia Financing Savings and Loans Cooperative, a deed is drawn up by a notary and registered with the fiduciary registration office. Relinquishment of the right to fiduciary security by the fiduciary recipient results in the elimination of the fiduciary security. However, in practice there are inconsistencies with the principles of the concept of agreements and fiduciary guarantees.Therefore, the aim of this research is to find out the fiduciary guarantee regulations for murabahah and rahn tasjily financing which are not fully in accordance with sharia principles and customer security, and to find out the reconstruction of murabahah and rahn tasjily financing regulations which are in accordance with existing regulations.The research results show that fiduciary guarantees are a reminder agreement for financing, the main agreements of which are the murabahah and rahn tasjily contracts. If the customer commits an act of default regarding the murabahah and rahn tasjily financing agreement which is bound by a fiduciary guarantee, the Baitul Maal Wat Tamwil Al-Hikmah Welahan Branch Sharia Financing Savings and Loans Cooperative will follow the principles of kinship, sharia arbitration and the judicial process. The results of the research show that fiduciary guarantees in murabahah and rahn tasjily financing are not fully based on sharia principles and security for customers is not fully guaranteed. Reconstruction of fiduciary guarantee regulations in murabahah and rahn tasjily agreements, namely in DSNMUI Fatwa No. 04/DSN-MUI/IV/2000 concerning Murabahah Financing and the provisions of Fatwa NO: 68/DSN-MUI/III2008 Rahn Tasjily and Law no. 42 of 1999
Potential of FGL1 Gene Variation in Increasing the Risk of Liver Side Effects Due to The Use of Nifedipine in Patients with Gestational Hypertension
No full textHypertension in pregnancy (HIP) affects approximately 10% of all pregnant women worldwide, including preeclampsia, eclampsia, gestational hypertension, and chronic hypertension. This study aims to analyze the potential of the Fibrinogen Like Protein 1 (FGL1) gene in increasing the risk of liver side effects due to the use of Nifedipine in pregnant women with genomic and bioinformatic information approaches. Bioinformatic databases included GWAS and SNPnexus, and gene expression profiles were examined using the GTEx Portal. We prioritized SNPs based on Benign, Possibly damaging, and Probably damaging criteria with the polyphen scoring system. Of the two SNPs (rs167479 and rs2653414) identified, the rs2653414 variant in the FGL1 gene showed probably damaging properties. The results showed that rs2653414 encoding the FGL1 gene has the potential to worsen the condition of hypertension during pregnancy and impact the side effects of using Nifedipine. FGL1 plays a role in liver regeneration, lipid metabolism, and energy utilization. Nifedipine metabolized in the liver can cause hepatitis with severe clinical symptoms. Therefore, routine monitoring of liver function in gestational hypertensive patients receiving Nifedipine therapy is necessary
Jurisprudential Analysis on the Determination (Itsbat) of Marriage and the Potential Cancellation of Marriage for Illegal Guardianship (Case Study of the Marriage of Mahalini and Rizky Febian)
Get PDFItsbat (determination) of marriage is a legal instrument to recognize marriages that are not recorded or do not meet the legal requirements under Islamic law. This research aims to analyze jurisprudence related to itsbat nikah and the potential for annulment of marriages involving illegitimate guardianship, with a case study of Mahalini and Rizky Febian’s marriage. The research uses normative juridical and empirical juridical approaches by examining legal documents such as the Compilation of Islamic Law (KHI), fiqh books, and court decisions. Secondary data was analyzed descriptively-qualitatively to describe legal facts and assess the consistency of legal application in similar cases. The results show that the appointment of a guardian without official authority violates Article 23 and Article 71 of the KHI, so it can be a basis for annulment of the marriage. In this case, although the nasab (descendant/family ties) guardian was ineligible due to religious differences, the appointment of an alternative guardian without legal legitimacy was also invalid. This research highlights the legal and social implications of the itsbat nikah decision, including its impact on the legal status of the couple and children. The novelty of the research lies in analyzing the relationship between the application of Islamic law, jurisprudence and community perceptions of public figures in the context of marriage law
PEMILU DAN WAJAH DEMOKRASI INDONESIA
Get PDFPenyelenggaraan Pemilu di Indonesia sebagai mekanisme lima tahunan menunjukkan Indonesia sebagai negara demokrasi. Problematika yang dihadapi negara ini, masih belum mampu menghindari praktik politik uang (money politics), di mana praktik ini sebagai bagian dari kapitalisme. Fakta menunjukkan, dari pemilu ke pemilu, praktik politik uang selalu muncul dan mewarnai perhelatan pesta demokrasi, baik dalam bentuk pemilu legislatif, pemilu presiden, pemilu Dewan Perwakilan Daerah (DPD) hingga pemilihan kepala daerah. Bertambah marak dan masifnya praktik ini, memunculkan keprihatinan banyak pihak. Berbagai upaya harus dilakukan untuk mengeliminasi perilaku yang menjadi pangkal lahirnya korupsi di berbagai bidang yang merugikan negara dan masyarakat. Upaya cepat yang harus ditempuh, diantaranya harus mengedukasi masyarakat agar memiliki ketahanan integritas dan idealisme agar tidak terbujuk oleh politik uang yang selalu muncul dalam setiap pemilu, selain pula penegakan hukum bagi pelaku untuk memberi efek jera.
Kata Kunci: Pemilu, Demokrasi, Indonesi
Penerapan Algoritma Convolution Neural Network untuk Klasifikasi Jenis Cabai Berdasarkan Warna dan Bentuk buah
Get PDFChili is one of the main agricultural commodities in Indonesia with significant economic value. Various types of chili, such as large chili, bird's eye chili, and green chili, are often difficult to distinguish manually due to their physical similarities. To support advancements in the agricultural sector, this study utilizes artificial intelligence technology, specifically the Convolutional Neural Network (CNN) with VGG-16 architecture, to automatically identify chili types through image analysis based on color and shape. This study aims to measure the accuracy, sensitivity, and specificity of the model in classifying chili types. The results show that the VGG-16 architecture achieved 100% accuracy in training data testing, indicating the model’s ability to detect and classify chili types optimally. In the model evaluation (fold 5), the accuracy was 91.8%, sensitivity was 88%, and specificity was 93.8%. This study confirms that CNN with VGG-16 is effective for image classification, especially when test data shares similar characteristics with training data. This system offers significant potential for application in the agricultural sector, particularly in improving the efficiency and accuracy of identifying other agricultural commodities
Pengelompokan Penyebaran Covid-19 di Provinsi Jawa Barat menggunakan Metode Clustering K-Medoids
Get PDFCovid-19 is a disease that infects the human respiratory system and has a high-speed transmission ability. West Java Province is one of the areas affected by the Covid-19 pandemic. The number of people confirmed with the Covid-19 virus in West Java is still increasing daily. Therefore, it is necessary to group the level of vulnerability to the spread of Covid-19, especially in West Java Province, using data from the official website of the West Java Provincial Government using 5 attributes, namely district_city_name, total_confirmation, confirmed_recovered, confirmed_death, and confirmed_active. This study aims to identify the pattern of the spread of Covid-19 to support more effective decision-making at the regional level. The research method involves a data mining process, namely business understanding, data understanding, data preparation, modeling, evaluation, and deployment based on the CRISP-DM methodology. The modeling process uses the K-Medoids algorithm with 3 clusters according to the government's color zone. The results of this study show 3 clusters, namely the green cluster is the minimum number of cases with 16 districts/cities. The yellow cluster is starting to be alert to the number of cases with 6 districts/cities. The red cluster is a very severe case with 5 districts/cities. The results of the Silhouette Coefficient test that tested n_cluster = 2, 3, 4, and 5 showed that n_cluster = 3 is the best cluster with a value of 0.77
Analisis putusan Pengadilan Negeri mengenai Upaya Hukum Perum Bulog atas Tindakan Hukum Wanprestasi yang Dilakukan Oleh Pihak Mitra CV Mulyo Santoso: Tinjauan Kasus terhadap Putusan PN Jakarta Selatan No. 337/PDT.G/2013/PN.JKT.SEL
Get PDFOne of the main sources of food for Indonesians is rice. To ensure food security and price stability of rice, the government established an agency called Perum Bulog. Perum Bulog carries out food procurement through grain sales, grain milling supplies, and rice sales. However, in reality, the agreement between Perum Bulog and its partners is inseparable from various challenges and problems. One of them is a default committed by a partner who has an agreement with Perum Bulog. In this research, the problems discussed are Perum Bulog's legal efforts to deal with partner defaults and the directors' responsibility for losses suffered by PERUM BULOG as a result of partner defaults. The purpose of this article is to find out the legal efforts of Perum Bulog for the legal action of default committed by the partner, to analyze the responsibility of the board of directors for the losses suffered by Perum Bulog due to the default of the partner. The method used in this article is normative juridical method and the specification is descriptive analytical. The data source used consists of secondary data which can be divided into primary legal materials and secondary legal materials. The data collection used in the analysis in this article is literature and documentary. The data analysis technique in this research is processed through qualitative analysis. According to the research, the Board of Directors of Bulog has taken legal action based on Article 1243 of the Civil Code to make a statement of acknowledgment of debt by CV Mulyo Santoso and file a claim for compensation to the previous Board of Directors of Bulog. In addition, based on Article 100 Paragraph 2 of Government Regulation No. 13/2016 and Article 97 of the Company Law, the Board of Directors of Bulog can be asked to compensate for the agreement made if it is proven that there is a loss arising from their fault
Pelanggaran Hak Cipta di Era Digital: Praktik Mod dalam Gim Interaktif Naratif
Get PDFThis article intents to explores the issue of copyright infringement in the digital age, with a specific focus on the practice of modding within interactive narrative games. As the gaming industry continues to evolve, the boundary between user-generated content and intellectual property rights becomes increasingly blurred, raising significant legal and ethical concerns. Through a normative approach, this research employs three methodologies: the conceptual approach to define the nature of modding and copyright, the statutory approach to analyze existing laws and regulations governing intellectual property in digital contexts, and the case approach to examine real-world instances of copyright violations in the realm of narrative games. The findings highlight the challenges in balancing creativity and legal protection in an era where users are both creators and consumers. This study provides recommendations for enhancing legal frameworks to better address the complexities of digital content creation, ensuring both the protection of copyright holders and the continued innovation within the gaming community