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Journal of Mathematical and Fundamental Sciences
Published by Institut Teknologi Bandung
ISSN : 23375760     EISSN : 23385510     DOI : https://doi.org/10.5614/j.math.fund.sci.
Core Subject : Science, Education,
Astronomy Chemistry Earth & Planetary Sciences Mathematics Physics
Journal of Mathematical and Fundamental Sciences welcomes full research articles in the area of Mathematics and Natural Sciences from the following subject areas: Astronomy, Chemistry, Earth Sciences (Geodesy, Geology, Geophysics, Oceanography, Meteorology), Life Sciences (Agriculture, Biochemistry, Biology, Health, Medical, Pharmacy), Mathematics, Physics, and Statistics.
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 689 Documents
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Hankel Inequalities for a Subclass of Bi-Univalent Functions based on Salagean type q-Difference Operator Sibel Yalçın; Şahsene Altınkaya; Gangadharan Murugusundaramoorthy; Kaliappan Vijaya
Journal of Mathematical and Fundamental Sciences Vol. 52 No. 2 (2020)
Publisher : Institute for Research and Community Services (LPPM) ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.math.fund.sci.2020.52.2.4

Abstract

In this investigation a new subclass of bi-univalent functions is established that is defined in the open unit disk Î”={𐌶 âˆˆ â„‚: |𐌶| < 1} and are endowed with the Sălăgean type q-difference operator. Then, Hankel inequalities for the new function class are obtained and several related consequences of the results are also stated.
Evaluation of Batch Culture Phytoremediation Process using Local Hydromacrophytes to Reduce Synthetic Pesticide Residue in Contaminated Irrigation Water Catur Retnaningdyah; Endang Arisoesilaningsih
Journal of Mathematical and Fundamental Sciences Vol. 51 No. 2 (2019)
Publisher : Institute for Research and Community Services (LPPM) ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.math.fund.sci.2019.51.2.2

Abstract

The aim of this study was to evaluate the effectivity of batch culture phytoremediation to remediate irrigation water that was contaminated with 6.4 µL/L synthetic pesticide Prevathon. This was a true experimental research study using a completely randomized design, conducted in a 30 L bucket with sand and gravel as the substrate. The treatment comprised five types of hydromacrophytes (emergent, floating leaf, submerged, polyculture and control without plants), repeated three times at the same time. The effectiveness of the phytoremediation model was determined by water physicochemical parameters, periphyton diversity, percentage of pollution tolerant values (%PTV) and trophic diatom index (TDI) on day 6, 13, 29 and 37 after incubation. The research results showed significantly decreased values of biochemical oxygen demand, turbidity, bicarbonate, nitrate, orthophosphate, total phosphate and free chlorine after incubation for 6 days; decreased concentration of chemical oxygen demand after incubation for 13 days. The water quality improved from slightly and moderately polluted (diversity index 1.6-2.8) to clean and slightly polluted (diversity index 2.8-4.2), from moderately and heavily organically polluted (PTV 40.0-93.7%) to slightly organically polluted and free of organic pollution (PTV 2.4-34.1%), and from meso-eutrophic and eutrophic (TDI 37.4-70.4) to oligo and meso-eutrophic (TDI 13.7-26.4).
Approximate Solutions of Multi-Pantograph Type Delay Differential Equations Using Multistage Optimal Homotopy Asymptotic Method Nidal Ratib Anakira; Ali Jameel; Abedel-Karrem Alomari; Azizan Saaban; Mohammad Almahameed; Ishak Hashim
Journal of Mathematical and Fundamental Sciences Vol. 50 No. 3 (2018)
Publisher : Institute for Research and Community Services (LPPM) ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.math.fund.sci.2018.50.3.1

Abstract

In this paper, a numerical procedure called multistage optimal homotopy asymptotic method (MOHAM) is introduced to solve multi-pantograph equations with time delay. It was shown that the MOHAM algorithm rapidly provides accurate convergent approximate solutions of the exact solution using only one term. A comparative study between the proposed method, the homotopy perturbation method (HPM) and the Taylor matrix method are presented. The obtained results revealed that the method is of higher accuracy, effective and easy to use.
Molecular Docking of Ferulic Acid Derivatives on P2Y12 Receptor and their ADMET Prediction Juni Ekowati; Nuzul Wahyuning Diyah; Kholis Amalia Nofianti; Iwan Sahrial Hamid; Siswandono Siswandono
Journal of Mathematical and Fundamental Sciences Vol. 50 No. 2 (2018)
Publisher : Institute for Research and Community Services (LPPM) ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.math.fund.sci.2018.50.2.8

Abstract

P2Y12 is a platelet receptor that is involved in ADP signal transduction and is an attractive target for antithrombotic drugs. The side effects of antithrombotic drugs are not pleasant for the patient, so research into the development of new antithrombotic agents is still necessary. Evaluation of absorption, distribution, metabolism, elimination, and the toxicity profile of candidate drugs is an important step in drug development. The aim of this study was to predict the potency of ferulic acid (FA) and its derivatives (FA1-24) as antiplatelet drugs by a docking study on the P2Y12 receptor (PDB ID: 4PXZ) and their ADMET performance. The docking study was performed using Molegro Virtual Docker, version 5.5. ADMET prediction of FA was conducted using the pkCSM online tool. The results of the in silico study showed that FA-19 had the lowest MolDock score (MDS), which means that this compound is predicted to have the greatest activity. FA-19 is also predicted to be practically non-toxic. It is expected that FA-19 will have good intestinal absorption and is similarly distributed in the intestine and in the blood plasma. Its penetration in the blood-brain barrier is moderate but does not inhibit the CYP2D6 and CYP3A4 enzymes.
Cover Vol. 49 No. 1, 2017 Journal of Mathematical and Fundamental Sciences
Journal of Mathematical and Fundamental Sciences Vol. 49 No. 1 (2017)
Publisher : Institute for Research and Community Services (LPPM) ITB

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Abstract

Back Matter Vol. 49 No. 1, 2017 Journal of Mathematical and Fundamental Sciences
Journal of Mathematical and Fundamental Sciences Vol. 49 No. 1 (2017)
Publisher : Institute for Research and Community Services (LPPM) ITB

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Abstract

Front Matter Vol. 49 No. 1, 2017 Journal of Mathematical and Fundamental Sciences
Journal of Mathematical and Fundamental Sciences Vol. 49 No. 1 (2017)
Publisher : Institute for Research and Community Services (LPPM) ITB

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Cover Vol. 49 No. 2, 2017 Journal of Mathematical and Fundamental Sciences
Journal of Mathematical and Fundamental Sciences Vol. 49 No. 2 (2017)
Publisher : Institute for Research and Community Services (LPPM) ITB

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Front Matter Vol. 49 No. 2, 2017 Journal of Mathematical and Fundamental Sciences
Journal of Mathematical and Fundamental Sciences Vol. 49 No. 2 (2017)
Publisher : Institute for Research and Community Services (LPPM) ITB

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Back Matter Vol. 49 No. 2, 2017 Journal of Mathematical and Fundamental Sciences
Journal of Mathematical and Fundamental Sciences Vol. 49 No. 2 (2017)
Publisher : Institute for Research and Community Services (LPPM) ITB

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