Natural & Applied Sciences

Research Papers/Topics in Natural & Applied Sciences

Analysis of Purity and SO2 levels in Sugar

An analysis of the purity and sulfur dioxide (SO2) levels in various sugar brands was conducted between January and November 2020.  The SO2 levels in the sugar samples were determined using the rapid iodometric titration method, which involved titrating the samples with iodine solution to measure the SO2 content. The color of the sugar samples was analyzed using a spectrophotometer at a wavelength of 420 nm, and the color was assessed based on absorbance values.  Based on the results, it is...

The Industrial Approach to Chemical Education in Kenyan Universities: A Literature Review

This paper reviews the literature on the industrial approach to chemical education in Kenyan universities. The industrial approach is a pedagogy that seeks to integrate the teaching of chemistry with the needs of industry. This is done by providing students with opportunities to learn about chemistry in a real-world context, such as by working on projects with industrial partners or by conducting internships in the chemical industry. The paper begins by discussing the rationale for the indust...

Are sex differences in blood cell count and hemoglobin moderated by the 2D:4D ratio? A cross‐sectional study in a Ghanaian population

Background and Aims: There are sex differences in blood cell count and hemoglobin (HGB) in adulthood due to differences in the levels of circulating sex hormones. The second‐to‐fourth digit ratio (2D:4D) is the putative marker of prenatal hormone exposure. The 2D:4D or the right‐left difference (Dr‐l) are sexually dimorphic and are correlates of sex hormones in adulthood. The study sought to determine whether sex differences in adult blood cell count and HGB can be partly explained by...

Exploring the Fusion of Graph Theory and Diverse Machine Learning Models in Evaluating Cybersecurity Risk

The frequency and severity of cyber- attacks have surged, causing detrimental impacts on businesses and their operations. To counter the ever-evolving cyber threats, there's a growing need for robust risk assessment systems capable of ef ectively pinpointing and mitigating potential vulnerabilities. This paper introduces an innovative risk assessment technique rooted in both Machine Learning and graph theory, which of ers a method to evaluate and foresee companies' susceptibility to ...

Cybershield: Harnessing Ensemble Feature Selection Technique for Robust Distributed Denial of Service Attacks Detection

As Modern-day data increases in terms of dimensions (Instances X attributes), Single Feature Selection Techniques (SFST) often have certain biases and fail to provide optimal performance in machine learning models. To overcome the challenges associated with using SFST on large datasets, an Ensemble Feature Selection Technique (EFST) is proposed that includes multi-filter-based feature ranking selection and a wrapper-based feature subset selection methods for feature extraction on the Cana...

Sustainable Application of Chitosan for Water Purification

ABSTRACT Alum (potassium aluminum sulfate-K+Al3+ (SO42-) 2), ferrous sulfate (Fe2+ SO42-), ferric chloride (Fe2+2Cl-) and ferric chloro-sulfate (Fe2+Cl-SO42-) were commonly used as coagulants. However, a possible link of Alzheimer’s disease with conventional aluminum based coagulants and other adverse bioaccumulation cases associated with heavy metal have become an issue in wastewater treatment. Hence, special attention has shift towards using biodegradable polymer like chitosan in treatme...

Design and Implementation of Weather Forecasting Package for Aviation Industry (A Case Study of Imo Airport (Sam Mbakwe Airport)

ABSTRACT Design and implementation of weather forecasting package for aviation industry is discussed in this research work using Sam Mbakwe Airport, Owerri – Imo State as a case study. With its objectives research work as follows: To help aviation Meteorologists issue accurate weather forecasts. To enable aviation industry to make decisions on control based on information given etc. This research work reviews the background and general idea of weather forecasting which motivated me to go in...

Latest Article on Mathematical Modelling of Novel Coronavirus

This is an incomplete analysis with a mathematical model of the novel coronavirus that aims at presenting a mathematical model that will help give a suitable prediction of the impact of asymptomatic patients who are either diagnosed or undiagnosed. Also, it would be used in estimating the impact of delayed or prompt treatment with individuals who are already tested or diagnosed. 

Geophysical Post-construction Integrity Assessment of the Subsurface Conditions of a Church Auditorium in Ado-Ekiti, Southwestern Nigeria

The recent obvious manifestation of rising damp, flaked plaster, blistered paint and cracks which are subtle evidences of structural distress necessitated a post-construction integrity assessment of the immediate vicinities of a church auditorium in Ado-Ekiti southwestern Nigeria. The Spontaneous Potential (SP) and Electrical Resistivity (ER) methods of geophysical prospecting were adopted for the assessment. Using a Total Field array spacing of 2 m and Dipole-dipole array spacing of 5 m resp...

Synthesis and Characterization of Ti–Fe Oxide Nanomaterials: Adsorption–Degradation of Methyl Orange Dye

Organic solvent-free impregnation method was used to synthesize titanium-iron oxides (TIOs) nanomaterial. The physical properties of synthesized TIOs materials were characterized by XRD, SEM–EDX, BET, UV–Vis, and FTIR analytical techniques. The appearance of iron oxide (IO) on SEM image, XRD, and EDX spectra, the redshift on UV–Vis spectra of TIO compared to titanium oxide (TO), and intensity reduction in FTIR spectra proves the good impregnation of IO in TO lattice. The passing of t...

Optical Photocatalytic Degradation of Methylene Blue Using Lignocellulose Modified TiO2

This paper reports the photo-catalytic activity and stability of Lignocellulose/TiO2nanoparticles (NPs) was evaluated through using the decomposition of methylene blue (MB) as a testing model reaction under visible light irradiation (λmax> 420nm). The modified (NPs) (pH = 6.94 - 6.97) photocatalyst material was dried for 24 hours at the temperature of 80°C and calcinated at 400°C for 2 hours through constant air flow. The degradation of MB was performed using 250 Watt xenon lamp within...

Adsorption and Kinetic Optimization Study of Acetic Acid from Aqueous Solutions Using Activated Carbon Developed from Vernonia amygdalina Wood

In this study, the adsorption of Acetic acid from an aqueous solution is investigated using activated charcoal prepared from Bitter leaf (Vernonia amygdalina) that is activated by tap water. Carbonizations at different activation temperature with constant flow of air are used to examine for accepted accessibility of sorbent material. The optimum  conditions obtained from this batch adsorption experiments highest adsorption capacity is recorded at activation temperature=400°C, contact ti...

Synthesis of ZnO nanoparticles mediated by natural products of Acanthus senniileaf extract for electrochemical sensing and photocatalytic applications: a comparative study of volume ratios

Determination of various chemical nutrients present within food samples using green nanomodifed carbon paste working electrode (GNM-CPWE) is a novel and cost-effective technique. In addition, wastewater treatment in the presence of high surface area green nanocatalysts attracts researchers worldwide. In the present study, zinc oxide nanoparticles (ZnO NPs) were synthesized by using Acanthus sennii leaf extract within three volume ratios as 2:3 (40 mL precursor: 60 mL extract), 1:1 (50 mL ...

Polypyrrole Based Biofunctional Composite Layer for Bioelectrocatalytic Device System

The involvement and development of intelligent polymers in enzymes as a catalyst have been interesting to develop processes that are environmentally benign, energy efficient, and selective towards their specific molecular applications. Polypyrrole based enzyme nanocomposites represents a continuous considerable redox organic polymer  that have been increased in electromechanical devices in advance  for  surface  functionalization. This review addresses the fundamental concepts of poly...

Biosynthesis and Optimization of ZnO Nanoparticles Using Ocimum lamifolium Leaf Extract for Electrochemical Sensor and Antibacterial Activity

In this study, zinc oxide nanoparticles (ZnO NPs) were synthesized using an aqueous extract of the Ocimum lamifolium (O.lamifolium) plant. The I optimal coordinate exchange random response surface methodology (RSM) was used to optimize the effect of the zinc acetate precursor, temperature, and time on ZnO NPs by designing nine runs. From ANOVA analysis, the significance and validity of the designed models showed that the optimal values of the zinc acetate precursor, temperature, and time d...


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