UIN (Universitas Islam Negeri) Sunan Kalijaga, Yogyakarta: E-Journal Fakultas Sains dan Teknologi
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Uji Aktivitas Ekstrak Etanol Bunga dan Daun Soka (Ixora coccinea) pada Minyak Kelapa
No full textMinyak kelapa mudah mengalami oksidasi ketika kontak langsung dengan udara. Penelitian ini bertujuan untuk menguji aktivitas antioksidan ekstrak etanol bunga dan daun soka dan perubahan bilangan peroksida dan kadar asam lemak bebas pada minyak kelapa dengan penambahan ekstrak etanol dan daun soka. Ekstraksi bunga dan daun soka menggunakan metode maserasi dan pelarut etanol. Ekstrak yang didapatkan diuji fitokimia dan uji aktivitas antioksidan dengan metode DPPH. Minyak kelapa yang masing-masing telah ditambahkan ekstrak bunga dan daun soka diuji bilangan peroksida dan kadar asam lemak bebas. Hasil penelitian ekstrak bunga dan daun soka masing-masing mengandung senyawa fenolik dan flavonoid. Selain itu, ekstrak bunga dan daun soka masing masing memiliki nilai IC50 sebesar 18,0467 ppm dan 2,0204 ppm. Berdasarkan pengujian bilangan peroksida dan kadar asam lemak bebas pada minyak kelapa yang masing-masing ditambahkan ekstrak daun dan bunga soka mengalami penurunan dibandingkan dengan minyak tanpa penambahan antioksidan
TINJAUAN FITOREMEDIASI LIMBAH BATIK PEKALONGAN MENGGUNAKAN AGEN ECENG GONDOK (Eichornia crassipes) SEBAGAI IMPLEMENTASI Q. S. AL-BAQARAH AYAT 30
No full textCommunity interest in batik art has increased from time to time, in line with the increase in batik production in Pekalongan. It will impact the waste produced as well. The batik waste without processing causes pollution and environmental damage. Phytoremediation actions can be used as a form of solution to manage the waste pollution. The purpose of this article is to examine the practice of Q. S. Al-Baqarah verse 30 in batik waste by phytoremediation using Water hyacinth (Eichornia crassipes). This article used literature review and self-observation methods to construct the data based on evidence. The review covers 25 journal articles published after 2010 in Bahasa from Goggle Scholar, Research Gate, and Google Books. Based on the results, the phytoremediation of Pekalongan batik waste using water hyacinth can be applied. This is a way of implementing the human mandate as caliph on earth in protecting the environment
Analisis Perbandingan Metode Pendukung Keputusan Pemilihan Kos Mahasiswa di Pontianak
No full textThe existence of boarding houses in public spaces is highly expected by the community, especially migrants such as students who need a temporary house in oversea areas. In Pontianak, especially around Tanjungpura University, there are many boarding houses that offer various facilities with various rental prices. Thus, decision support analysis is needed to choose a good boarding house for students around Tanjungpura University. In this study, two decision support system methods were selected, those are SAW and TOPSIS. These two methods were chosen because they have uncomplicated calculations, but are capable to produce good decisions. A comparison of the two methods was carried out to find out differences in results and calculation concepts to choose boarding houses for students in Pontianak. Data that was used for the trial were 10 alternative boarding houses located around the university. Based on trial results, the best boarding house obtained using SAW and TOPSIS methods is Yoga Kost
Klasifikasi Ulasan Fasilitas Publik Menggunakan Metode Naïve Bayes dengan Seleksi Fitur Chi-Square
No full textGovernment builds public facilities to support the needs of the community. The use of these public facilities needs to be re-evaluated, and one way to do it is through community response. Google Maps is one platform that receives the most responses from the community about location. Google Maps Reviews allow us to see how the public reacts to a location. Naïve Bayes method is used for classification in this study because it is one of the simple methods in machine learning that can be easily applied to several experiments conducted by the author. In the classification process, reviews produce many features that will be calculated based on their class. More features generated, more features processed too in the system. Chi-Square feature selection will be used to reduce features that have low dependence on the system. In this study, performance values will be calculated based on the experimental use of feature ratios of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, and 100%. The results show that the use of 10% Chi-Square features produces the best performance, with an accuracy rate of 86.94%, precision of 80.42%, recall of 80.42%, and f-measure of 80.42%
KIAMAT DAN STRUKTUR ALAM SEMESTA DALAM PERSPEKTIF AL-QUR’AN DAN SAINS
No full textSains dan Al-Qur\u27an adalah dua bidang studi yang memiliki hubungan yang saling bergantung dan bertentangan. Ilmu yang terbentuk dari pemikiran manusia didasarkan pada penelitian ilmiah yang terus berkembang dan selalu diperbarui yang merupakan hasil penafsiran dari ayat-ayat kauniyah, sedangkan Al-Qur\u27an adalah sumber ilmu yang akurat yang tidak pernah berubah. Memahami tentang kiamat dan struktur alam semesta dari dua sudut akan membawa kita pada perenungan yang mendalam dan menambah khazanah pengetahuan antara sains dan Al-Qur\u27an dengan menjelaskan berita-berita profetik tentang kiamat dan peristiwa-peristiwa akhir zaman. Penelitian yang dilakukan adalah penelitian kualitatif dengan jenis penelitian kepustakaan. Penelitian ini menggunakan dokumen perpustakaan sebagai sumber data referensi utama, referensi utama dalam penelitiian ini adalah tafsir Al-Qur’an tentang ayat-ayat kauniyah dan beberapa artikel yang berkaitan dengan judul penelitian. Penelitian ini bertujuan untuk memahami lebih jauh terkait struktur alam semesta dan masa depan alam semesta. Hasil penelitian ini menunjukkan struktur alam semesta dan masa depan alam semesta telah dijelaskan dalam beberapa ayat Al-Qur’an, salah satunya adalah QS. Al-Zalzalah ayat 1-3 yang dapat dipahami umat manusia saat ini melalui ilmu pengetahuan. Seperti pada program sebelumnya, hasil yang diperoleh dalam ilmu pengetahuan modern tidak lebih dari interpretasi ayat-ayat kauniyah yang akan digunakan untuk lebih memahami atau membantu menafsirkan ayat-ayat dan berita tentang peristiwa akhir zaman.
Kata kunci: integrasi interkoneksi, kiamat, struktur alam semesta
Science and the Qur\u27an are two fields of study that have an interdependent and contradictory relationship. Science that is formed from human thought is based on scientific research that continues to develop and is always updated which is the result of the interpretation of the Kauniyah verses, while the Qur\u27an is an accurate source of knowledge that never changes. Understanding about the apocalypse and the structure of the universe from two angles will lead us to deep reflection and increase the knowledge base between science and the Qur\u27an by explaining prophetic news about the apocalypse and end-time events. This research is a qualitative research with the type of library research. This study uses library documents as the main reference data source, the main reference in this study is the interpretation of the Qur\u27an about the verses of the Kauniyah and several articles related to the title of the study. This study aims to understand more about the structure of the universe and the future of the universe. The results of this study show that the structure of the universe and the future of the universe have been described in several verses of the Qur\u27an, one of which is QS. Al-Zalzalah verses 1-3 that can be understood by mankind today through science. As in the previous program, the results obtained in modern science are nothing more than interpretations of kauniyah verses that will be used to better understand or help interpret verses and news about end-time events.
Keywords: interconnect integration, apocalypse, the structure of the univers
Real-time Smartphone Usage Surveillance System Based on YOLOv5
No full textThe digital era affects students\u27 attitudes toward utilizing applications as learning media. This phenomenon can be used to boost student achievement, but it can also have negative consequences, such as chatting while studying or cheating on school exams. To support the positive and reduce the negative impact of smartphone use, it is necessary to supervise this activity. The supervision can be done by utilizing a camera to detect a smartphone. The YOLOv5 algorithm was used, which is known for its good speed and accuracy in object detection. This smartphone detection system can be controlled, so the application is adjustable to the needs of learning activities. Collecting a dataset, annotating, training objects, writing program code, and testing the system are all stages in the development of this system. The dataset used in this research consists of 1,038 smartphone images from the internet and camera-captured images. This detection system was built to assist teachers in monitoring the use of smartphones by students. The results of this model training are 77.7% mean average precision, 93.2% precision rate, and 71.7% recall rate under varying lighting conditions
Klasifikasi Tingkat Kerusakan Sektor Pasca Bencana Alam Menggunakan Metode MULTIMOORA Berbasis Web
No full textDuring 2020-2021, 10,152 disasters occurred in Indonesia, significantly impacting the affected sectors. The recovery of these sectors needs to be done as quickly as possible to maintain human survival. This study aims to analyze the factors that affect sector damage after natural disasters in Indonesia and measure the classification accuracy. The data used in this research is data from the Regional Disaster Management Agency of Malang City in 2020. This study developed a web-based Decision Support System (DSS) using The Multiplicative Form Integrated MOORA (MULTIMOORA) method. This method is the result of the development of the MOORA method by adding a complete multiplication form to the MOORA method. In this study, the MULTIMOORA method was used to classify the level of damage to sectors after natural disasters. The results showed that using the MULTIMOORA method in this DSS resulted in an accuracy rate of 84% and was included in the good enough category
Analisa Deteksi dan Pengenalan Wajah pada Citra dengan Permasalahan Visual
No full textFacial recognition is a significant part of criminal investigations because it may be used to identify the offender when the criminal\u27s face is consciously or accidentally recorded on camera or video. However, a majority of these digital photos have poor picture quality, which complicates and lengthens the process of identifying a face image. The purpose of this study is to discover and identify faces in these low-quality digital photographs using the Principal Component Analysis (PCA) and Linear Discriminant Analysis (LDA) face identification method and the Viola-Jones face recognition method. The success percentage for the labeled face in the wild (LFW) dataset is 63.33%, whereas the success rate for face94 is 46.66%, while LDA is only a maximum of 20% on noise and brightness. One of the names and faces from the dataset is displayed by the facial recognition system. The brightness of the image, where the facial item is located, and any new objects that have entered the scene have an impact on the success rate
KONTEKSTUALISASI KONSEP MASYARAKAT MADANI TERHADAP WACANA SOCIETY 5.0
No full textKonsep masyarakat madani cenderung dipahami secara spasial-historis sehingga terjebak pada euphoria tatanan masyarakat ideal era klasik yang tidak relevan dengan kebutuhan kontemporer. Masyarakat madani sebagai manifestasi tatanan masyarakat yang memiliki peradaban tinggi pada zamannya secara karakteristik berbeda pada era saat ini dengan transformasi digital yang cepat. Society 5.0 sebagai hasil dari transformasi era digital menjadi suatu konsep sistem sosial baru untuk menyelesaikan tantangan dan kebutuhan masyarakat kontemporer menjadi suatu diskursus yang menarik untuk diperhatikan. Tujuan penelitian ini untuk mendapatkan korelasi antara konsep masyarakat madani dan society 5.0 sebagai upaya untuk mewujudkan masyarakat ideal ditengah tantangan kebutuhan kontemporer. Metode yang digunakan adalah metode kualitatif dengan pendekatan analisis deskriptif. Tiga poin yang diuraikan dalam tulisan ini meliputi: pertama, mengapa perlu kontekstualisasi konsep masyarakat madani terhadap wacana society 5.0. kedua, bagaimana konsep masyarakat madani dan relevansinya terhadap society 5.0. ketiga, bagaimana implikasi kontekstualisasi masyarakat madani terhadap wacana society 5.0 sebagai masyarakat ideal. Adapun kesimpulan dari penelitian ini yaitu perlunya kohesi sosial sebagai kebutuhan kontemporer untuk melihat konsep masyarakat madani dari perspektif Islam secara kontekstual. Kemudian adanya titik persamaan dari konsep masyarakat madani dengan tujuan nilai sosial dari wacana society 5.0 seperti mengakomodasi keragaman, berorientasi pada perdamaian, serta manusia menjadi pusat kehidupan. Adapun implikasi dari upaya kontekstualisasi konsep masyarakat madani terhadap wacana society 5.0 sebagai tawaran diskursus yang berintegrasi antara kajian saintifik dan perspektif Islam dalam mewujudkan tatanan sosial yang ideal
SAINS-TEKNOLOGI-ISLAM-MASYARAKAT (STIM) SEBAGAI INOVASI PEMBELAJARAN IPA TERINTEGRASI-INTERKONEKSI
No full textPendidikan IPA sebagai bagian pendidikan nasional, menekankan pengalaman nyata untuk dapat memahami dan menjelajahi alam yang berkemungkinan besar melakukan penyesuaian dalam kemajuan teknologi, STIM (Sains-Teknologi-Islam-Masyarakat) sebagai adaptasi model pembelajaran STS (Science-Technology-Society) terintegrasi dengan nilai keislaman menawarkan kolaborasi pendidikan IPA yang termanifestasikan dengan baik terhadap sains, teknologi, islam, dan masyarakat. Penelitian bertujuan untuk (1) mengembangkan modul IPA berbasis Sains-Teknologi-Islam-Masyarakat (STIM) (2) mengetahui kualitas kelayakan modul IPA berbasis Sains-Teknologi-Islam-Masyarakat (STIM) yang telah dikembangkan (3) mengetahui respon dan keterlaksanaan peserta didik pada modul IPA berbasis Sains-Teknologi-Islam-Masyarakat (STIM) yang dikembangkan. Penelitian research and development (R&D) menggunakan prosedur pengembangan oleh Thiagarajan, Semmel, dan Semmel melalui 4 tahap yaitu Define, Design, Develop, dan Disseminate. Penelitian ini dibatasi sampai pada tahap develop dengan menghasilkan modul IPA berbasis Sains-Teknologi-Islam-Masyarakat (STIM) materi alat optik untuk peserta didik pondok pesantren. Hasil dari kualitas modul berdasarkan penilaian ahli materi, ahli grafika, ahli integrasi-interkoneksi, dan guru IPA memiliki kategori sangat baik (SB) dengan skor rata-rata berturut-turut 3,62; 3,63; 3,33; dan 3,63. Respon peserta didik terhadap modul pada uji coba terbatas dan uji coba luas memiliki kategori Setuju (S) dengan skor rata-rata berturut-turut 0,97 dan 0,97