About Journal

Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464) is an open-access journal and peer-reviewed that publishes either original articles or reviews. This journal is published by the Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia. The journal is dedicated to the dissemination of knowledge related to the advancement in scientific research. The prestigious interdisciplinary editorial board reflects the diversity of subjects covered in this journal. Under science and technology, the coverage includes environmental science, pure and applied mathematics, agricultural research and engineering, biology, biotechnology, and bioinformatics. Healthcare sciences (including clinical medicine, preventive medicine, and public health), physics, biophysics, computer science, chemistry, and bioengineering, to name a few. Since 2017 (Volume 19) Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464) publishes two issues (numbers) annually (April and October). On 9 October 2020, the frequency of journal publications changed through the ISSN LIPI decree. The ISSN LIPI letter stated that starting in 2021, our journal will publish four issues in a year, namely January, April, July, and October. The first issue (No 1) is published every 30 January, the second issue (No 2) is published every 30 April, the third issue (No 3) is published every 30 July, and the fourth issue (No 4) will be published every 30 October.

DOI: https://doi.org/10.24036/eksakta/vol21-iss1

Published: Apr 30, 2020

The Effect of Ethanol Solvent Concentration on Antimicrobial Activities The Extract of Andalas Endophytic Bacteria (Morus Macroura Miq.) Fermentation Product

10.24036/eksakta/vol21-iss1/210

1-6 Larasati Arum Utami, Dwi Hilda Putri

pdf

Read Statistic: 314

Convergence Analysis from the Solution of Riccati’s Fractional Differential Equation by Using Polynomial Least Squares Method

10.24036/eksakta/vol21-iss1/211

7-14 Dian Nuryani, Endang Rusyaman, Betty Subartini

pdf

Read Statistic: 148

The Use of Peanut’s Shells and Sawdust Absorbents for Reduced Iron (Fe) Levels of Dug Well Water Puspitaloka Residence Housing at Tanjungpinang City in 2019

10.24036/eksakta/vol21-iss1/215

15-23 Juliana Juliana, Hevi Horiza, Rinaldi Daswito

pdf

Read Statistic: 118

A Solution of Nonlinear Boundary Value Problem of System With Rectangular Coefficients

10.24036/eksakta/vol21-iss1/217

24-28 Badrulfalah Badrulfalah, Iis Irianingsih, Khafsah Joebaedi

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Read Statistic: 83

Study the Effect of pH on the Fermentation Anaerobic-Aerobic Siwalan (Borassus flabellifer L.) Sap to Produce Acetic Acid

10.24036/eksakta/vol21-iss1/220

29-35 Elly Agustiani, Destri Susilaningrum, Atiqa Rahmawati, Fibrillian Z.L., Dimas L.R.

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Read Statistic: 142

Comparison of Serum HIF-1α Levels in Swimming Athletes Before and After Hypoxic Non-Hypoxic Exercise

10.24036/eksakta/vol21-iss1/223

36-39 Syahrastani Syahrastani, Argantos Argantos, Siska Alicia Farma

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Read Statistic: 129

Interest Rate in Pension Plan Premium Calculation

10.24036/eksakta/vol21-iss1/218

40-45 Khafsah Joebaedi, Kankan Parmikanti, Agus Supriatna, Fauzi Akhmad, Badrulfalah Badrulfalah, Nendi Suhendi Syafei

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Read Statistic: 106

The Similarity Measurement of Human DNA Profile Using Fuzzy Similarity

10.24036/eksakta/vol21-iss1/216

46-53 Meira Parma Dewi, Nurtami Soedarsono

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Read Statistic: 113

Generalized Poisson Regression Type-II at Jambi City Health Office

10.24036/eksakta/vol21-iss1/222

54-58 Corry Sormin, Gusmanely Z, Nurhidayah Nurhidayah

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Read Statistic: 97

Multivariate Analysis on The Determinants of Work Fatigue Factors for Nurses Inpatient Care at RSUD Arifin Achmad Hospital Pekanbaru

10.24036/eksakta/vol21-iss1/219

59-69 Devi Purnama Sari, Tjipto Suwandi, Endang Purnawati Rahayu

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Read Statistic: 118

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Accreditation

Eksakta : Berkala Ilmiah Bidang MIPA is Nationally Accredited in SINTA 4

Accreditation Number

(Ministry of RTHE): 10/E/KPT/2019 No.12, date April 4, 2019.

Editorial Team

Meet Our Editorial Team

Editor In Chief

Dr. Rahadian Zainul, M.Si.

Scopus ID :56737195700

Orcid :0000-0002-3740-3597

Universitas Negeri Padang

Managing Editor

Ade Cahya, S.Kom

Scopus ID :-

Orcid :0000-0002-0141-3267

Universitas Negeri Padang

Editorial Board

Viko Ladelta, Ph.D

Scopus ID :56527279100

Orcid :0000-0002-0141-3267

King Abdullah University of Science and Technology, Arab Saudi

Dr. Yosza Dasril Ph.D

Scopus ID :6505715619

Orcid :0000-0002-3740-3597

Universiti Teknikal Melaka, Malaysia

Prof. Dr. Dra. R. Iis Arifiantini, MSi.

Scopus ID :57190674189

Orcid :0000-0002-3740-3597

Institut Pertanian Bogor, Indonesia

Prof. Dr. Ing. Mitra Djamal

Scopus ID :6506355194

Orcid :0000-0002-4698-2949

Institut Teknologi Bandung, Indonesia

Dr. Dedy H.B. Wicaksono, S.T., M.Eng.

Scopus ID :57189079217

Orcid :0000-0003-1218-6853

Swiss German University, Indonesia

Dr Hamidreza Kashefi

Scopus ID :36761108900

Orcid :0000-0000-0000-0000

Farhangian University, Iran

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