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DEGRADATION MODEL OFPOLYETHYLENE TEREPHTHALATE BY ESCHERCHIA COLI BACTERIA Talib, Taufan
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 12 No 2 (2018): BAREKENG: Jurnal Ilmu Matematika dan Terapan
Publisher : PATTIMURA UNIVERSITY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (270.261 KB) | DOI: 10.30598/vol12iss2pp053-060ar366

Abstract

Degradation of Polyethylene Terephthalate (PET) using Escherchia Coli (E-Coli) bacteria in awhole cell biocatalys system. E-Coli bacteria will produce LC-Cutinase enzyme surface of the cell and coupled with PET, so PET can decompose. LC-Cutinase reaction and PET lasts for three days. Models that are formed already can explains the phenomenon of PET degradation
ANALISIS KESALAHAN MAHASISWA DALAM MENYELESAIKAN MASALAH PERMUTASI DAN KOMBINASI Matitaputty, Christi; Mataheru, Wilmintjie; Talib, Taufan
Jurnal Magister Pendidikan Matematika (JUMADIKA) Vol 4 No 2 (2022): Jurnal Magister Pendidikan Matematika (JUMADIKA)
Publisher : Prodi Magister Pendidikan Matematika Pascasarjana Universitas Pattimura Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jumadikavol4iss2year2022page43-49

Abstract

Permutations and combinations are one of the materials in discrete mathematics courses that have many benefits in everyday life and are closely related to the context of real life. However, students need to improve in solving permutation and combination problems. This study aims to describe the errors made by students in solving permutation and combination problems. The research subjects comprised 25 first-semester students of the 2021/2022 academic year of the Mathematics Education Study Program, FKIP Unpatti. The research method used is descriptive qualitative. The research instrument consisted of 6 test questions related to permutations and combinations. The results showed that most students made mistakes because they needed help understanding the statement (58%). In addition, students also made mistakes in remembering value parameters (13%), paying attention to order (10%), recognizing objects (8%), using formulas (7%), and errors in performing arithmetic operations (4%). The implications of this research are expected to be able to contribute to lecture activities in the first year
THE LOCATING RAINBOW CONNECTION NUMBERS OF LOLLIPOP AND BARBELL GRAPHS Bustan, Ariestha Widyastuty; Talib, Taufan; Laamena, Novita Serly; Saputra, Lamanisa Rasid; Nurhayati, Nurhayati
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 19 No 4 (2025): BAREKENG: Journal of Mathematics and Its Application
Publisher : PATTIMURA UNIVERSITY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/barekengvol19iss4pp2727-2738

Abstract

The concept of the locating rainbow connection number of a graph is an innovation in graph coloring theory that combines the concepts of rainbow vertex coloring and partition dimension on graphs. This concept aims to determine the smallest positive integer such that there exists a locating rainbow -coloring on the graph, ensuring that every vertex has a unique rainbow code. In this study, we investigate the locating rainbow connection number of the lollipop graph and barbell graph . Using a literature study method, hypotheses were formulated and proven through theoretical analysis. The results show that and .