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 Article10.9734/ajopacs/2019/v7i430101
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 Article10.9734/ajopacs/2019/v7i430100
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 Article10.9734/ajopacs/2019/v7i430099
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 Article10.9734/ajopacs/2019/v7i330098
This study considers the biomechanics in the stem of green plants. The process of translocation and transpiration is discussed. The coupled non-linear differential equations governing the motion of the flow were non-dimensionlized and then solved using the homotopy perturbation m...
Open access
Research Article10.9734/ajopacs/2019/v7i330097
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...
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Research Article10.9734/ajopacs/2019/v7i330096
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...
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Research Article10.9734/ajopacs/2019/v7i330095
Solar energy has the greatest potential of all the sources of renewable energy, as only a small amount of this form of energy could be used, especially when other sources (coal, oil or gas) in the country have depleted. A solar cell is a solid electrical device that converts sola...
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Research Article10.9734/ajopacs/2019/v7i330094
The spatial variations in groundwater quality in parts of the Yenagoa watershed (YWS) in the Niger Delta Region of Nigeria has been investigated using Geographic Information System (GIS). An understanding of the factors responsible for groundwater vulnerability could facilitate t...
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Research Article10.9734/ajopacs/2019/v7i230093
This paper included two objectives: (i) Synthesis of Polymer {poly 2- [1- phenyl -3-(4-methyl phenyl)-4, 5-dihydropyrazole-5-yl-(4-phenoxy carbonyl)] styrene} PMDPCS and structure characterized by FT-IR, 1H-NMR spectra and Uv/Vis and XRD. (ii) Synthesis of chalcone {3-(4-(dimethy...
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Research Article10.9734/ajopacs/2019/v7i230092
The kinetic approach to the reduction of ethylenediaminetetraacetatoferrate(III) complex (hereafter [Fe(III)EDTA]-) by iodide ion has been studied spectrophotometrically in an aqueous acidic medium. The study was carried out under pseudo-first order conditions of an excess of iod...
Open access
Research Article10.9734/ajopacs/2019/v7i230091
Aims: To determine the concentrations of heavy metals (Cd, Fe, Mn, Pb, and Zn) in kidney and liver of slaughtered cattle. Study Design: Analytical method. Place and Duration of Study: Samples obtained from Gwagwalada abattoir in Abuja, Nigeria and transported University of Abuja...
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Research Article10.9734/ajopacs/2019/v7i230090
In this study, results of the variation of maximum and minimum radio horizon distance derived from the computation of surface refractivity through measurement of temperature, relative humidity and pressureacrosssevenlocations((Akure (7.15°N, 5.12°E), Lagos (6.30°N, 3.20°E), Abuja...
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Research Article10.9734/ajopacs/2019/v7i230089
Controlled burning of rice husks at<700°C produced rice husk ash (RHA) which is predominantly amorphous silica (SiO2). RHA was used as a substitute for laterite and cement in proportions of 5%, 10%, 15%, 20%, 25% and 30% of concrete. The concrete was cured for 7 days, 14 days,...
Open access
Research Article10.9734/ajopacs/2019/v7i130088
The Li+ co-doped Y2O3: Ho3+/Yb3+ films were prepared with sol-gel method and spin-coating technique. The effects of Li+ on the structure and luminescent properties of the films were investigated. The results show the grain size increased first and then decreased with the increase...
Open access
Research Article10.9734/ajopacs/2019/v7i130087