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Journal of Mathematical and Fundamental Sciences
Scopus
ISSN 2337-5760 · ITB Journal Publisher · 701 artikel di indeks
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Artikel Jurnal
Variability Survey of Southern Open Clusters NGC 6134, NGC 6416, Collinder 394, and Alessi 10
We present the results of a brightness variability survey of four southern open clusters, namely NGC 6134, NGC 6416, Collinder 394, and Alessi 10, which were observed using three telescopes following a time series photometric scheme during the dry season in 2022. The purpose of these observations…
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Artikel Jurnal
The Potential of Pasak Bumi (Eurycoma longifolia Jack) Root Extract Nanoparticles as Anti-Prostate Cancer Agent against Cell Cycle Regulation, Apoptosis, and Senescence based on In Vitro Tests
Prostate cancer poses a major health challenge worldwide, with increasing incidence rates and limited current treatment modalities, which highlights the urgent need for innovative therapeutic alternatives. Utilizing nanoparticles derived from plant extracts is emerging as a promising solution…
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Artikel Jurnal
Localized Green Fabrication of Hydroxyapatite/ZnO Nanocomposite: Toward A Sustainable Antibacterial Biomaterial
Using a plant-assisted sol–gel strategy, a hydroxyapatite–zinc oxide (HAp/ZnO) composite was produced from Padalarang calcite and lemon (Citrus limon L.) extract. The calcite supplied the calcium component, while constituents of the lemon extract promoted metal-ion complexation and helped control…
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Artikel Jurnal
Tailed Grover Search on Cyclic Graphs
Quantum walks offer promising advantages for search algorithms over graphs. Among these, Grover’s quantum search provides a quadratic speedup with a time complexity of for unstructured search problems. Nevertheless, Grover search performs poorly on cyclic graphs due to the dynamics of the Grover…
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Artikel Jurnal
A Multidimensional Modeling Approach to Classify the Poverty Levels of Households
The conventional method for poverty measurement is the poverty line, which is based only on household income and expenditure. The poverty line can be used to determine whether a given household is poor or not. However, to capture the true nature of poverty, many factors other than income and…
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Artikel Jurnal
Exploring the Impact of Deformation on Strain Energy of Ultrafine-Grained Copper through Equal Channel Angular Pressing: Insights from X-Ray and Neutron Diffraction
The mechanical behavior of materials at the nanoscale level has attracted significant attention in materials science research. This study investigated the impact of deformation on the strain energy of ultrafine-grained (UFG) copper produced by equal channel angular pressing (ECAP). X-ray and…
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Artikel Jurnal
Mangosteen Peel Extract (Garcinia mangostana L.) as a Potential Complementary of Leukemia Therapy: In Vitro and In Silico Studies
Leukemia is caused by abnormal white blood cell proliferation that leads to disruption of conventional blood cell functions. Mangosteen (Garcinia mangostana L.) contains phytochemical compounds with strong anticancer properties, according to various cancer studies. This study investigated the…
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Artikel Jurnal
Synthesis of Ternary Nanocomposites of MnO2/PANI/Maxsorb and their Performance as an Electrode Material for Supercapacitors
Increasing performance of supercapacitors can be achieved by using a composite of electrode materials. Nevertheless, selecting appropriate materials and determining the optimal combination composition remain significant challenges. In this research, a ternary composite of MnO2/polyaniline…
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Artikel Jurnal
Normal Form of Periodic FPU Chain of Four Particles with Alternating Masses
The periodic Fermi-Pasta-Ulam (FPU) chain is a Hamiltonian system modeling a one-dimensional chain of oscillators with a periodic boundary condition and nearest-neighbor interactions. While previous studies typically restricted the potential function in the Hamiltonian to cubic or quartic terms…
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Artikel Jurnal
Bauxitization and REE Redistribution in Weathered I-type Granite Profile of Gunung Kijang, Bintan Island
Weathering is often linked to economic mineral enrichment, including nickel, bauxite, and rare earth elements (REE). The exposed granitic rocks on Bintan Island, Riau Islands Province, belong to the Southeastern Asian Eastern Granite Province. This study examines the bauxitization process and REE…
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Artikel Jurnal
Forecasting Climate-driven Dengue Incidence in Penang, Malaysia
Dengue continues to pose a major public health challenge in Malaysia, with no definitive cure currently available. Although the Ministry of Health of Malaysia has implemented various measures to control outbreaks, the number of cases keeps rising and is likely to worsen due to the impacts of…
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Artikel Jurnal
The Impact of Convective Available Potential Energy (CAPE) on Spatio-Temporal Variations of Indonesian Extreme Rainfall
Atmospheric instability frequently influences the distribution of precipitation and is closely associated with atmospheric dynamics and thermodynamics. An increase in convective available potential energy (CAPE) has the potential to result in the development of convective clouds, which could…
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Artikel Jurnal
Isolation and Identification of Endophytic Yeast from Sugarcane Juice (Saccharum officinarum L.) as a Bread Leavening Agent
Baker’s yeast naturally occurs in plant materials with high glucose content, including sugarcane (Saccharum officinarum L.). This study aimed to isolate and identify yeast from sugarcane juice and evaluate its safety and potential application as baker’s yeast. The methodological workflow included…
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Artikel Jurnal
Modelling the Dynamics of Tuberculosis A Multi-Stage Compartmental Approach
We propose a robust multi-stage compartmental model to study tuberculosis (TB) transmission dynamics in Namibia, incorporating multiple stages of latent infection, along with undiagnosed and diagnosed active cases. The model distinguishes between early and late latent stages, allowing for a more…
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Artikel Jurnal
Discretization and Associated Asymptotic Behavior for the Lax Equation with Skew-symmetry
The computation of matrix eigenvalues is vital for understanding various scientific phenomena. The QR method, which is based on the QR factorization of a matrix, is a common approach in numerical linear algebra. In integrable systems, the one-step process of the QR method is related to the time…
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Artikel Jurnal
On the Interaction between Trichogramma chilonis and Jatiroto Flies with Stem Borer Pests in Sugarcane Plantation
Pests in sugarcane plantations are a major cause of damage, which could lead to severe damage to the crop, reduction of sugar quality, and significant economic loss. One of the major pests known in sugarcane plantations is stem borer (Chilo sacchriphagus), which attacks the canes. Two primary…
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Artikel Jurnal
An Algorithm to Construct a Tridiagonal Matrix Factored by Bidiagonal Matrices with Prescribed Eigenvalues and Specified Entries
This paper presents an algorithm to construct a tridiagonal matrix factored by bidiagonal matrices with prescribed eigenvalues and specified matrix entries. The proposed algorithm addresses inverse eigenvalue problems (IEPs) constrained by LR decomposition. Using techniques from discrete soliton…
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Artikel Jurnal
Density Functional Theory Investigation on Muon Hyperfine Interaction in Methylated Guanine-Cytosine Double-Strand DNA
The aims of this study were to determine the most likely Mu trapping sites based on total energy consideration as well as identifying the associated muon hyperfine coupling constant of 1, 2, and 3 methylated guanine-cytosine base pair double-strand DNA. The Density Functional Theory method was used…
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Artikel Jurnal
Molecular Docking and In Vitro Studies of Synthesized Oxadiazole Derivatives as Urease Inhibitors
A novel sequence of 1,3,4-oxadiazoles (7a–h) was synthesized. The compounds were characterized by IR, ¹H NMR, and MS analyses. They were also examined to determine whether they could prevent urease from functioning. Molecular docking was done with AutoDock Vina, and the findings were visualized in…