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Global Journal of Science Frontier Research: (F) Mathematics and Decision is an international journal for publishing natural science research papers. It aims to encourage and provide international publication to researchers, scientists and professors of natural science. We welcome original researches, surveys and review of papers of all the streams of natural science from all over the world. The GJSFR comprises comprehensive frontier trends of Physics, Mathematics, Chemistry, Zoology, Botany, Bio-tech, Geology, Military Science, Environment and all Interdisciplinary & Frontier Subjects etc. Journal of Physics, Journal of Chemistry etc. are belonging to GJSFR. 


The peer review workflow and process is rigorous and double-blind following recognized standards.
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Global Journals Incorporated is Delaware, USA-based and a well-established international organization which is governed by ISO-certified groups and accredited by non-profit societies. For more than a decade, thousands of universities and authors from 153 countries have acknowledged and published with us.
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Our inviolable and mandatory practice of thorough peer review at the heart of our scholarly publishing is to ensure that only good science is published in our refereed journal.

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The journal is indexed/being indexed by almost all relevant indexing organizations with world-class standards for journal assessment to match the requirements of top universities and institutions.
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Global Journal of Science Frontier Research

Since 2001, Global Journal of Science Frontier Research (GJSFR): (F) Mathematics and Decision has been an academic open access, peer-reviewed, interdisciplinary, refereed journal focusing on all aspects of Engineering Research published by Global Journals, which is one of the fastest growing and leading Research Journal publishing organization in the world. The GJSFR is superintended and sponsored by Non Profit making Open Association of Research Society USA (OARS). The OARS has been esteemed internationally since 1964, aiming to highlight the research of frontiers and enhance research & development.


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Best Practices

Type of License Creative Commons
Open Access Yes
Does the author retain unrestricted copyright? Yes
Does the author retain publishing rights? Yes
Permanent article identifier DOI (Digital Object Identifier)

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Latest eJournals GJSFR

GJSFR-I Volume 17 Issue 1
GJSFR-B Volume 17 Issue 2
GJSFR-A Volume 17 Issue 4
GJSFR-F Volume 17 Issue 7


Journal Specification

GJSFR-F Volume 17


ISSN Online 2249-4626
ISSN Print 0975-5896
Print Estd. 2001
DOI 10.17406/GJSFR
Publishing Frequency Monthly
Society Accreditation Yes

Journal Metrics

Recent Citations

Citation indices  All Since 2011
Citations 1966   1923
h-index 15 15
i10-index 41 39


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Recent Articles Published in GJSFR-F

Twin Prime Number Theorem

Let Pt(N) be the number of twin primes less than or equal to N, Pi (3 Pi Pm) be taken over the odd primes less than or equal to √N, then exists the formula as follows: Pt(N) ≥ INT { N×(1-1/2)×Π (1-2/Pi) } - 2 ≥ INT { Ct×2N/(Ln (N))^2 } - 2 Pt(N) ≥ INT { 0.660×2N/(Ln (N))^2 } - 2 ≥ 0.660×2N/(Ln (N))^2 - 3 Π ( Pi(Pi-2)/...

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A Note on Chebyshev Inequality: To Explain or to Predict

The question is: What proportion of the total probability of a random varriable X lies within a certain interval of the mea? What is the probability of being hit by a meteor greater in size than five times the standard deviation above the mean? Because it can be applied to completely arbitrary distributions (unknown except for mean and variables), ...

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Dynamics of Two Coupled van der Pol Oscillators with Delay Coupling Revisited

The problem of two van der Pol oscillators coupled by velocity delay terms was studied by Wirkus and Rand in 2002 [5]. The small-ε analysis resulted in a slow flow which contained delay terms. To simplify the analysis, Wirkus and Rand followed a common procedure of replacing the delay terms by non-delayed terms, a step said to be valid for small ...

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Various for 9

If we multiply the number n=3529411764705882 by 2, then the result m=2n=7058823529411764 will contain the same digits. Moreover, we can cut n into two section n=bd with b=3529411764 and d=705882 such that m contains the same sections in reverse order: m=db....

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The Temperature Dependence of Gravitation for the Metallic Balls - Measured with a Torsion Balance Scale

We use a torsion balance scale to measure the attraction between two large lead balls and two smaller brass balls, connected with an up-side down T bar that is hung with a string. The vertical part of the T bar is attached with a mirror that reflects a laser beam to provide a light spot that shows how much the T bar has turned. It is observed that ...

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