Komar Baihaqi
Institut Teknologi Sepuluh Nopember Surabaya

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Kajian Pola Irama Ostinato Pada Busur Lingkaran Herisman, Iis; Komar Baihaqi; Rinurwati; Soleha; Dian Winda Setyawati
Jurnal Ilmiah Soulmath : Jurnal Edukasi Pendidikan Matematika Vol 11 No 1 (2023)
Publisher : Universitas Dr. Soetomo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (499.968 KB) | DOI: 10.25139/smj.v11i1.6025

Abstract

Rhythm is one of the basic elements of music. It is formed from a combination of a group of sounds and silences, as well as various timelines and lengths of tempos. One of the rhythm patterns is Ostinato, which is a rhythm pattern that has special characteristics with a sound that is heard repeatedly and takes place regularly throughout the song so that it forms a rhythmic unit. The timeline of rhythmic ostinatos is easy to recognize and remember and plays an important role in music. In addition, it acts as a conductor's function to organize and can give cues to musicians through the fundamental cyclic structure of the pieces of the rhythm. The aim of the research is to examine the results of the rhythm patterns that have been recorded by the electrocardiogram in a schematic diagram, with the given keys divided into sound and silent keys. The Ostinato rhythm pattern is periodic or repeated and then transformed into a circular arc as the seat of the keys. The result of this research is a circle that constitutes a polygon, with the sides being the rhythm timeline between each sound key and the next sound key. Keywords: Ostinato, keys, timeline, polygon
Derivation Requirements on Prime Near-Rings for Commutative Rings Setyawati, Dian Winda; Habibi, Mochammad Reza; Baihaqi, Komar
Jurnal ILMU DASAR Vol 20 No 2 (2019)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (761.168 KB) | DOI: 10.19184/jid.v20i2.10297

Abstract

Near-ring is an extension of ring without having to fulfill a commutative of the addition operations and left distributive of the addition and multiplication operations It has been found that some theorems related to a prime near-rings are commutative rings involving the derivation of the Lie products and the derivation of the Jordan product. The contribution of this paper is developing the previous theorem by inserting derivations to the Lie products and the Jordan product. Keywords: Derivation, Prime Near-Ring, Lie Products and Jordan Products.