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All Journal THABIEA (JOURNAL OF NATURAL SCIENCE TEACHING) Jurnal Diferensial Mathematical Journal of Modelling and Forecasting
Albar, Wakhid Fitri
Unknown Affiliation
Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Mathematics Physics Public Health

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Development of Modules Containing Islamic Values in Inquiry-Based Basic Physics Practicum Haqiqi, Arghob Khofya; Albar, Wakhid Fitri; Azizati, Zidni; Soprihatin, Puryanti; Aryani, Lia Duwi; Sa'adah, Nailatus
THABIEA : JOURNAL OF NATURAL SCIENCE TEACHING Vol 5, No 1 (2022): THABIEA : JOURNAL OF NATURAL SCIENCE TEACHING
Publisher : Institut Agama Islam Negeri Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21043/thabiea.v5i1.13835

Abstract

This study develops an inquiry-based practicum module which integrates Islamic values to increase students’ independent learning for basic physics. The main goal is that the developed module will be valid and interesting. Research and development using the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation) is the type of this study. While the instruments were a validation questionnaire and a student-attractiveness-response questionnaire. The questionnaires were intended for the product. The basic-physics-practicum module was validated by three experts who are a material expert with a final score (average score) of 3.8, a religious expert of 3.9, and a media expert of 3.5. The three validation results are included in the "Valid" criteria. About the response test, there were two tests, which are the small group test with an average acquisition of 3.27 and the field group test 3.30. The two response-test results are included in the "Very Interesting" criteria. Based on these results, it can be concluded that the product of the basic-physics-practicum module is valid and interesting so that it can be used for learning basic-physics practicum.
Dimensi Metrik pada Graf Theta Rahmadi, Deddy; Albar, Wakhid Fitri
JURNAL DIFERENSIAL Vol 7 No 2 (2025): November 2025
Publisher : Program Studi Matematika, Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jd.v7i2.20790

Abstract

Let $ G = (V, E) $ be a connected graph with vertex set $ V(G) $ and edge set $ E(G) $. For any two vertices $ u $ and $ v $ in $ G $, the shortest path distance between $ u $ and $v$ is denoted by $d(u, v)$. If $W = \{w_1, w_2, \dots, w_k\}$ is an ordered set of vertices in the connected graph $G$ , and $v \in V(G)$, then the representation of vertex $v$ with respect to $W$ , denoted as $r(v|W)$, is $r(v|W) = (d(v, w_1), d(v, w_2), \dots, d(v, w_k))$. If $r(v|W)$ is distinct for each vertex $v \in V(G)$, then $W$ is referred to as a resolving set for $G$. The resolving set with the smallest cardinality is called the minimum resolving set, and the cardinality of this set is the metric dimension of $G$, denoted by $\dim(G)$. This paper explores the metric dimension of the theta graphs.
Solving the Problem of Profit Maximization in Najwa Sewing House Textile Business in Salatiga Hutauruk, Stefany Margaretha; Pitaningtyas, Farisca Ayu; Albar, Wakhid Fitri; Hidayat, Agus Sofian Eka
Mathematical Journal of Modelling and Forecasting Vol. 1 No. 1 (2023): June 2023
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/mjmf.v1i1.4

Abstract

Linear programs are often referred to as linear problem-solving methods, one of which is the simplex method. The simplex method is an approach that the author can use in solving a linear program problem in determining the optimal solution that has two or more decision variables where in determining the combination itself can be repeated iterating over the simplex table until the optimum value is found in the optimization problem that has been studied. The business world must have optimization problems that include maximum profits and minimum costs where both problems can be solved using the simplex method. The research began on May 14, 2023 at Najwa Sewing House (Clothing Store) Ngelosari, Jombor, Kec.Tuntang, Semarang Regency. The purpose of this study is to describe and analyze the simplex method in a linear program so that maximum profit is obtained in the production of Najwa Sewing House. The analysis carried out in this study is an analysis using the simplex method with calculations assisted by excel applications. The results showed that the amount of optimum production from each product capacity at Najwa Sewing House resulted in a maximum profit of IDR 2.550.000.
Optimization of Aqua Gallon Water Distribution Cost at Mega Mas Water Depot by VAM and MODI Fatikasari, Najma; Yasinta, Bhernita Mila; Albar, Wakhid Fitri
Mathematical Journal of Modelling and Forecasting Vol. 1 No. 1 (2023): June 2023
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/mjmf.v1i1.6

Abstract

This study aims to obtain optimal distribution costs for selling gallons of water at the Air Mega Mas Depot, Sekaran. The data analysis method used is the transportation method, using the VAM (Vogel's Approximation Method) method for the initial solution and the optimal test using the MODI (Modified Distribution) method. Air Mega Mas Depot is faced with the problem of increasing marketing costs due to the lack of regular distribution patterns from the source to the marketing destination, so the company tries to optimize the transportation costs incurred. The distribution of gallon water products at the Air Mega Mas Depot using the transportation method gets optimal results. The costs incurred by the Air Mega Mas Depot for the distribution of gallons of water for a 2-month period (March-April) are Rp. 2.520.000 while for the optimal calculation results for the distribution of gallons of water, a cost of IDR 2.435.000 is obtained. Based on this analysis, Air Mega Mas Depot can optimize distribution costs for the March-April period of IDR 85.000.
Co-Authors Aryani, Lia Duwi Azizati, Zidni Fatikasari, Najma Haqiqi, Arghob Khofya Hidayat, Agus Sofian Eka Hutauruk, Stefany Margaretha Pitaningtyas, Farisca Ayu Rahmadi, Deddy Sa'adah, Nailatus Soprihatin, Puryanti Yasinta, Bhernita Mila