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All Journal Indonesian Physical Review Wewarah: Jurnal Pendidikan Multidisipliner
Hadi, Miftachul
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Education Languange, Linguistic, Communication & Media Physics Other

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PENINGKATAN KETERAMPILAN MENULIS KARANGAN SEDERHANA MELALUI MEDIA GAMBAR BERBASIS IT PADA SISWA KELAS III SDN JOGOROGO 1, KECAMATAN JOGOROGO, KABUPATEN NGAWI TAHUN PELAJARAN 2023/2024 Hadi, Miftachul; Hadi, Panji Kuncoro; Ricahyono, Sigit
Wewarah: Jurnal Pendidikan Multidisipliner Vol 3, No 2 (2024)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/wjpm.v3i2.20572

Abstract

Penelitian tahun ajaran 2023–2024 ini dilakukan pada siswa kelas III SDN Jogorogo 1, Ngawi untuk mengetahui apakah: (1) penggunaan media gambar berbasis IT dapat meningkatkan keterampilan menulis karangan sederhana dalam pembelajaran tematik bahasa Indonesia; dan (2) penggunaan media ini dapat meningkatkan kualitas aktivitas siswa selama pelajaran menulis. Metode penelitian adalah penelitian tindakan kelas dengan sumber data dari dokumen, peristiwa, dan informan. Hasil menunjukkan media gambar berbasis IT meningkatkan keterampilan menulis dan keterlibatan siswa.The study aimed to investigate whether the use of IT-based image media could enhance students’ ability to write simple essays during thematic Indonesian language lessons and improve student engagement during writing classes. The research employed a classroom action research approach, conducted in three cycles. Data sources included documents, events, and informants. The findings revealed that IT-based image media effectively improved students’ writing skills and their participation in class activities. This study highlights the potential of incorporating visual media to enhance writing instruction and student engagement in language learning. 
GEOMETRICAL OPTICS AS AN ABELIAN U(1) GAUGE THEORY IN A VACUUM SPACE-TIME Hadi, Miftachul; Muliyono, Suhadi
Indonesian Physical Review Vol. 7 No. 1 (2024)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v7i1.278

Abstract

As a consequence that geometrical optics (the eikonal equation) can be derived from Maxwell’s equations and Maxwell’s theory is nothing but an Abelian U(1) gauge theory, we propose that geometrical optics could also be treated as an Abelian U(1) gauge theory. We formulate geometrical optics as an Abelian U(1) gauge theory in a (3+1)-dimensional vacuum space-time as an approximation of the weak field. We show the explicit form of the phase, the gauge potential, and the field strength tensor related to the refractive index. We calculate numerically the refractive index and the magnetic field using the suitable parameters that we choose to mimic the real condition of nature. We obtain (without unit) the values of the refractive index  =1.0001 to represent a vacuum space-time and the amplitude ρ = 0.55853 related to magnitude of the magnetic field  = 0.10452 to represent the weak field.  The view of geometrical optics as gauge theory could be generalized or related to topological field theory where geometrical optics could have a topological structure in the case of the weak field.
A WEAK GRAVITATIONAL KNOT IN (2+1)-DIMENSIONAL EMPTY SPACE-TIME Hadi, Miftachul; Muliyono, Suhadi
Indonesian Physical Review Vol. 8 No. 1 (2025)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v8i1.346

Abstract

We propose the existence of a topological object, a weak gravitational knot, in the framework of an Abelian Chern-Simons action with a small positive cosmological constant in (2+1)-dimensional empty space-time.
Co-Authors Panji Kuncoro Hadi, Panji Kuncoro Sigit Ricahyono, Sigit Suhadi Muliyono