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Asian Journal of Physical and Chemical Sciences

Published by SCIENCEDOMAIN international · ISSN (electronic) 2456-7779

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351

Articles indexed

79

2026 articles

351

Open access

1,544

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Articles (351)

Physicochemical Properties and Fatty Acid Composition of Ocimum basilicum L. Seed Oil

Abeer A. Idris, Azhari H. Nour, Mahmoud M. Ali, Ibrahim Y. Erwa, Omer A. Omer Ishag & Abdurahman H. Nour · Asian Journal of Physical and Chemical Sciences · 2020

Ocimum basilicum has been widely used in traditional medicine. Rural communities have used fixed oils for variety purposes since a long time ago. They used for cosmetic applications, fuel, medicine and food. The aim of this study was to characterize the physicochemical properties...

Open access Research Article 10.9734/ajopacs/2020/v8i130104

Enzymatic Kinetic Issues and Controversies Surrounding Gibbs Free Energy of Activation and Arrhenius Activation Energy

Ikechukwu I. Udema & Abraham Olalere Onigbinde · Asian Journal of Physical and Chemical Sciences · 2020

Background: The equation of the difference between reverse and forward Gibbs free energy of activation (ΔΔGES#) reflects Michaelis-Menten constant (KM) in both directions; this may not be applicable to all enzymes even if the reverse reaction is speculatively Michaelian. Arrheniu...

Open access Research Article 10.9734/ajopacs/2019/v7i430103

Phytochemical Screening, Antioxidant and Antimicrobial Activities of the Essential Oils and Ethanol Extract of Psidium guajava Leaf

Andrew Emmanuel, Dimas Kubmarawa, Galo Yahaya Sara & Akurenda Wahu · Asian Journal of Physical and Chemical Sciences · 2019

Objective: To investigate the Phytochemical screening, antioxidant and antimicrobial activities of the essential oil and ethanol extract of Psidium guajava. Methods: The leaf of Psidium guajavabelongs to the myrtle family (Myrtacease) which is used as herbal remedies for the cure...

Open access Research Article 10.9734/ajopacs/2019/v7i430102

Derivable Equations and Issues Often Ignored in the Original Michaelis-Menten Mathematical Formalism

Ikechukwu I. Udema · Asian Journal of Physical and Chemical Sciences · 2019

Background: There has been recent shift from the core issue of Michaelian kinetics to issues regarding various kinds of quasi-steady-state assumptions. Derivable equations with which to determine reverse rate constant for the dissociation of enzyme-substrate complex (ES) is given...

Open access Research Article 10.9734/ajopacs/2019/v7i430101

Gross Alpha and Gross Beta Radioactivity in Drinkable Water and Soil/Sediment around Oil Spill Sites in Delta State, Nigeria

M. U. Audu, G. O. Avwiri & C. P. Ononugbo · Asian Journal of Physical and Chemical Sciences · 2019

The gross alpha and beta activity concentration in drinkable water and soil/sediment from oil spilled communities of Delta state have been carried out using calibrated MPC 2000 Protean ORTEC desktop gross alpha/beta counter. A total of 22 water samples (11 River water and 11 well...

Open access Research Article 10.9734/ajopacs/2019/v7i430100

Occupational Hazards from Outdoor and Indoor Radiation in Oil Field Facilities in Rivers State, Nigeria

G. O. Avwiri, J. Ekpo & Y. E. Chad-Umoren · Asian Journal of Physical and Chemical Sciences · 2019

The aim of this study is to determine the occupational hazards due to exposure to gamma radiations from oil and gas facilities. In-situ measurement of radiation exposure rate of some Oil Field Facilities in Rivers State, Nigeria  carried out using Digilert 200 and Radalert 100 nu...

Open access Research Article 10.9734/ajopacs/2019/v7i430099

Low Temperature Synthesis and Characterization of MFe12O19 (M=Sr, Ca) by Solvo-combustion and Ceramic Method Using Mathematical Analysis

A. B. Borkar, B. T. Borkar, K. P. Pande & S. R. Choubey · Asian Journal of Physical and Chemical Sciences · 2019

Hexagonal Magnetoplumbite Compound CaFe12O19 were synthesized by two methods  namely  Solvo  Combustion  and  Ceramic methods respectively. The compounds were studied by X-ray diffraction technique (XRD), Scanning electron Microscope (SEM), energy dispersive spectroscopy (EDS) an...

Open access Research Article 10.9734/ajopacs/2019/v7i330098

Synthesis of (2Z)-4,6-Diphenyl-N-((2-(Piperidin-1-yl)Ethyl]-2H-1,3-Thiazin-2-Imino Hydrochloride and its Antimicrobial Activities

Oluwaseyi Bukky Ovonramwen, Bodunde Joseph Owolabi & Amowie Philip Oviawe · Asian Journal of Physical and Chemical Sciences · 2019

Aim: The study aims to synthesize, characterize, and screen (2Z)-4,6-diphenyl-N-((2-(piperidin-1-yl)ethyl]-2H-1,3-thiazin-2-imino hydrochloride for microbial activities. Methodology: A (2Z)-4,6-diphenyl-N-((2-(piperidin-1-yl)ethyl]-2H-1,3-thiazin-2-imino hydrochloride was synthes...

Open access Research Article 10.9734/ajopacs/2019/v7i330096

Radiological Risk Assessment of Drinking Water from Ignatius University Quarters, Rumuolumeni, Nigeria

C. P. Ononugbo & T. I. Amadi · Asian Journal of Physical and Chemical Sciences · 2019

Aims: The aim of this study was to assess the level of natural radioactivity in drinking water (tap water) from Ignatius university staff quarters in order to determine the radiological health risks associated with consumption of such water. Study Design:  This study was purely a...

Open access Research Article 10.9734/ajopacs/2019/v7i330095