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All Journal Jurnal Sendratasik Komunikasi Fisika Indonesia Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan BIO-SITE |BIOLOGI Sains Terapan Jurnal Ilmiah Rekayasa dan Manajemen Sistem Informasi R.E.M (Rekyasa Energi Manufaktur) Jurnal QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama al-Afkar, Journal For Islamic Studies Jurnal PAJAR (Pendidikan dan Pengajaran) Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal Pertanian Agros METHOMIKA: Jurnal Manajemen Informatika & Komputerisasi Akuntansi Administratio : Jurnal Ilmiah Administrasi Publik dan Pembangunan Tribakti: jurnal pemikiran keIslaman LOYALITAS: Jurnal Pengabdian Kepada Masyarakat Hisbah: Jurnal Bimbingan Konseling dan Dakwah Islam JURNAL ANSIRU PAI : Jurnal Pengembangan Profesi Guru Pendidikan Agama Islam Jurnal Ilmiah Keperawatan Imelda Administrativa : Jurnal Birokrasi, Kebijakan dan Pelayanan Publik JURNAL GIZI DAN KESEHATAN Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi jurnal hukum das sollen Fitrah: International Islamic Education Journal G-Couns: Jurnal Bimbingan dan Konseling jurnal abdimas saintika Jurnal Karya Abdi Dinamis Prosiding Seminar Nasional Program Pengabdian Masyarakat Al-MIKRAJ: Jurnal studi Islam dan Humaniora Jurnal Riset Indragiri Jurnal Keperawatan Profesional (KEPO) Swakarya: Jurnal Penelitian Sosial dan Pemberdayaan Masyarakat Argopuro: Jurnal Multidisiplin Ilmu Bahasa Social Science Academic CERATA Chatra: Jurnal Pendidikan dan Pengajaran Protein: Jurnal Ilmu Keperawatan dan Kebidanan Natural: Jurnal Pelaksanaan Pengabdian Bergerak Bersama Masyarakat Harmoni Sosial : Jurnal Pengabdian Dan Solidaritas Masyarakat Prosiding Seminar Nasional Fakultas Tarbiyah dan Ilmu Keguruan UIAD JUDIKIS: Jurnal Pendidikan Islam Indragiri Law Review Tribakti: Jurnal Pemikiran Keislaman Interkoneksi: Journal of Computer Science and Digital Business UNM Journal of Technology and Vocational Argopuro : Jurnal Multidisiplin Ilmu Bahasa
Fitri Wahyuni
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Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Veterinary Other

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ANALISIS YURIDIS ATAS TIDAK DITETAPKANNYA STATUS BANJIR BANDANG DAN TANAH LONGSOR DI SUMATERA SEBAGAI BENCANA NASIONAL syariffuddin; Fitri Wahyuni; Jamri
JURNAL HUKUM DAS SOLLEN Vol 11 No 2 (2025): Jurnal Hukum Das Sollen
Publisher : Fakultas Hukum Universitas Islam Indragiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32520/das-sollen.v11i2.5026

Abstract

Penetapan status bencana nasional merupakan kewenangan Presiden berdasarkan kerangka hukum dalam Undang-Undang Nomor 24 Tahun 2007 tentang Penanggulangan Bencana. Namun dalam praktiknya, terdapat sejumlah bencana besar di Sumatera yang tidak ditetapkan sebagai indikator bencana nasional meskipun normatif telah terpenuhi. Penelitian ini bertujuan untuk menganalisis dasar-dasar hukum mengenai bencana nasional, mengidentifikasi faktor-faktor yang mempengaruhi pemerintah pusat dalam menetapkan status tersebut, serta menilai kebijakan-kebijakan tersebut dalam perspektif hukum tata negara. Metode penelitian yang digunakan adalah yuridis normatif dengan pendekatan peraturan-undangan, konseptualisasi, dan studi kasus. Hasil penelitian menunjukkan bahwa secara yuridis Presiden mempunyai kewenangan penuh untuk menetapkan status bencana nasional berdasarkan tingkat keparahan bencana dan kemampuan daerah dalam penanganannya. Namun faktor politik, ekonomi, hubungan pusat-daerah, dan pertimbangan stabilitas nasional menjadi variabel signifikan yang mempengaruhi pengambilan kebijakan. Dalam perspektif konstitusional, jangka waktu atau tidak ditetapkannya status bencana nasional berpotensi mengurangi efektivitas penanganan bencana serta bertentangan dengan kewajiban negara dalam memberikan perlindungan kepada warga negara. Oleh karena itu, diperlukan penegakan implementasi kebijakan bencana, transparansi penggunaan diskresi Presiden, serta harmonisasi koordinasi pusat-daerah untuk menjamin terwujudnya perlindungan hak masyarakat secara optimal.
Erosion Behavior of SKD11 Tool Steel Under Different Impact Angles and Particle Velocities: A Finite Element Analysis Study Deva Ihsan Khoirunas; Purba, Riki Hendra; Situmorang, Riky Stepanus; James Julian; Fitri Wahyuni; Elvi Armadani; Fathin Muhammad Mardhudhu
DINAMIS Vol. 13 No. 2 (2025): Dinamis : In Press
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The study utilizes the Single Particle Finite Element Analysis (FEA) method with a Cowper-Symonds Strain Rate Material Model to understand the response of SKD11 tool steel to erosion under varying impact angles and velocities. In this study, SiO₂ particles measuring 0.7 mm in diameter were selected as the erodent, while the target material, SKD11, was sized at 1x1x0,5 mm. The impact angle was varied at 30, 60, and 90 degrees, and the impact velocity was set at 25 and 50 m/s. The simulation results show that SKD11 performs best at lower impact angles. It was observed that as the impact angle increases, the erosion also increases significantly, particularly at 60 degrees. Different impact angles also resulted in different erosion mechanisms on the material's surface. The impact velocity further contributed to an increase in erosion, with material failure and material reduction occurring at 50 m/s.
Effect of Anadara Granosa Shell Volume Fraction on Erosive Wear and Hardness Behaviour of Al 6061 Metal Matrix Composites Purba, Riki Hendra; Aldi Raditya Adriansyah; James Julian; Fitri Wahyuni; Elvi Armadani; Fathin Muhammad Mahdhudhu
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 11 No 1 (2026): In Progress
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v11i1.1795

Abstract

Despite the favorable mechanical properties of Anadara Granosa Shell (AGS), particularly hardness, its influence on the wear resistance of Metal Matrix Composites (MMCs) remains insufficiently explored. Therefore, this study aims to investigate the potential of AGS waste as an eco-friendly reinforcement for Al6061 alloy. Composites were fabricated with 0 wt%, 5 wt%, 10 wt%, and 15 wt% AGS addition. Wear behavior of each specimen was evaluated using sandblast with SiO2 as the erodent particles. The investigation also involved the microstructure and wear mechanism observation using optical microscope and Scanning Electron Microscopy (SEM). In addition, the hardness of each material measurement using Vickers hardness test was included to obtain a comprehensive insight. The results shows that the AGS reinforcement was evenly distributed within the matrix, though a minor presence of voids was observed. The hardness of specimens exhibited a consistent increase proportional to the AGS content. Interestingly, the erosion rate showed no significant difference between the 0 wt% and 5 wt% AGS additions, but drastically increased with 10 wt% and 15 wt% reinforcement. This suggests that hardness is not the primary factor governing the erosion behavior in these composites. Analysis of the worn surfaces revealed a prevalent wear mechanism: reinforcement particle peel-out, which became more severe at 10 wt% and 15 wt% AGS concentrations. Conversely, the unreinforced (0 wt%) Al 6061 alloy displayed ripple formation, indicating a plastic deformation mechanism typical of a ductile material. Therefore, this study highlights the critical importance of considering the wear mechanism, specifically the susceptibility to particle pull-out, when evaluating the erosive wear behavior of Al6061 MMCs reinforced with Anadara Granosa Shell waste.
AN ANALYSIS OF THE USE OF CAPITAL LETTERS ON THE THESIS ABSTRACTS OF PGSD STUDENTS GRADUATE IN 2019 Fitri Wahyuni
Jurnal PAJAR (Pendidikan dan Pengajaran) Vol. 4 No. 4 (2020): July
Publisher : Laboratorium Program Studi Pendidikan Guru Sekolah Dasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33578/pjr.v4i2.8021

Abstract

One of the common problems in writing is spelling errors. This study aims to analyze the capital letters in the thesis abstract of PGSD students who graduate in 2019. Based on the results, the use of capital letters got lowest with a percentage of 33%, capital letters as the first letter of the direct passage, and capital as the first letter of every word (including perfect re-words) in the titles of books, essays, articles and papers and magazine and newspaper names, except for assignments such as in, to, from, which and and for not in the initial position. The use of capital letters got highest category with a percentage of 100%, capital letters as the first letter of the element of the person's name, including the nickname, capital letter as the first letter of the name of the position and rank followed by the person's name or used as a substitute name the name of a particular person, the name of the institution, or the name of the place, capital letters as the first letter of the name of the year, month, day, and holiday, capital letters as the first letter of the abbreviation for title greeting.
Asesmen pada Soal Close-Ended, Open-Middle, dan Open-Ended dalam Pembelajaran Matematika M. Sadly Yusuf; Husnul Khatimah; Fitri Wahyuni; A. Dian Anita Sari; Adhe Qurnia Amir; Mytra, Prima
Prosiding Seminar Nasional Fakultas Tarbiyah dan Ilmu Keguruan IAIM Sinjai Vol 4 (2025): Volume 4 Tahun 2025
Publisher : Fakultas Tarbiyah dan Ilmu Keguruan (FTIK) Institut Agama Islam Muhammadiyah Sinjai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47435/sentikjar.v4i0.4112

Abstract

Penilaian pembelajaran matematika membutuhkan pendekatan yang tepat agar mampu menggambarkan kemampuan siswa secara menyeluruh. Artikel ini bertujuan untuk mengkaji strategi asesmen berdasarkan jenis soal close-ended, open-middle, dan open-ended dalam pembelajaran matematika. Penelitian ini menggunakan metode studi literatur (literature review) dengan pendekatan kualitatif deskriptif. Sumber data berupa artikel jurnal nasional dan internasional, buku, serta dokumen relevan lainnya. Hasil kajian menunjukkan bahwa setiap jenis soal memiliki karakteristik asesmen yang berbeda. Soal close-ended umumnya dinilai dengan jawaban benar atau salah secara objektif, soal open-middle dinilai berdasarkan proses penyelesaian dan strategi yang digunakan, sedangkan soal open-ended memerlukan rubrik penilaian untuk menilai berbagai kemungkinan jawaban dan penalaran siswa. Ketiga jenis soal ini, bisa didesain dan diakses secara tepat, dapat saling melengkapi dalam mengukur kemampuan matematis siswa secara komprehensif. Temuan ini memberikan referensi praktis bagi guru dalam merancang asesmen yang lebih bermakna dan sesuai dengan tujuan pembelajaran matematika.
Co-Authors A. Dian Anita Sari Adhe Qurnia Amir administratio Department Afdhil Arel Afi Rahmat Slamet Ahmad syafiì Sj Aldi Raditya Adriansyah Ali Makmur Anas Arfandi Andika, Mira Angraini Angraini Anuar Ramut Aris Irawan Arya Maheswara Asneliwarni Aulia Ul Millah Awitdrus Awitdrus, Awitdrus Azizah, Suci Midsyahri Bambang Sasmita Adi Putra Bayu Wandira Burhani, Iqbal Khoirul Daniah Daniah Darmaji Efrad Darmiwati Darmiwati Daud Dedi Adha Desfiarni Desfiarni Detri , Detri Sunelti Deva Ihsan Khoirunas DEWI RAHMAWATI Dinda Putri Abadi Efendi, Zulham Elmustian, Elmustian Elvi Armadani Evan Marsandi Evi Evi Rahmawati Fathin Muhammad Mardhudhu Fatmatul Zahra Faza Kasyiva Az-Zahra Fitra, Fitra Edia Rahman Jandru Fitratul Aini Fitria Alisa Guslinda Guslinda Habibul Akram Herlinda Mansyur Husnul Khatimah Ibnu Yazid Ietje Ietje Nazaruddin Ihsan, Mahya Ilham Maulana Saud Ilham Maulana Saud Inka Sisilia Putri Irawan, Aris Ishaq Ishaq James Julian Jamri Joharsah Kurnia Yusuf Lazim N Lazim N Lenni Sastra Lola Despitasari M. Sadly Yusuf Mahdhudhu, Fathin Muhammad Mario Pani Mei Suraning Tias Meiliyana Meiliyana Melisa Anggraini Nusainu Mhd.Sahrizal Miranda Sari Mudiuddin, Mudiuddin Muhammad Husaini Assauwab Muhammad Zikra Rasyidi Mytra, Prima Nabilla Nathania Naila Hilmi Aidina Nora Idiawati Nur Asmawati Nur Hidayah Nur Mega Aris Saputra Nur Nilam Sari Nurcahyani, Icha Dian Nurleny, Nurleny Okti Valensi Rahayu Eka Sari Rakhmawati Farma Ramli Rate, Suherman Reza Hanifa Ria Desnita Riki Hendra Purba Rini Rahmayanti Rizki Ananda Rois Arifin Sandy Aulia Lubis Sapto Haryoko Sarmilah Shella Nur Jayanti Sherli Ramadhani Sherly Azkiah Siti Afifah Siti Masithoh siti rahmah SITI SAIDAH Situmorang, Riky Stepanus Solly Aryza Sri Budhi Sri Budhi Rezki Sri Wahyuningsih St Masithah Suryani, Rias Wita Syam, Marsuki Syariffuddin Titah Pramesti Titin Sumarni Vivi Syofia Sapardi WAHYUNI AGUSTINA wandi Wati Oviana Weny Amelia, Weny Wida Ningsih YUNI ASTUTI