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Heavy metal and hydrocarbon proportion in Okerenkoko Community, Delta State is alarming. Five (5) soil samples were collected randomly from the community, the collected samples were investigated to determine the effects of these substances in the soil to living  things at large using Atomic Absorption Spectrometer (AAS) and Gas Chromatography respectively.

This contribution critically expands the concept of delta-differentiated systems with impulsive discontinuities across unbounded delay into quantum stochastic calculus, specifically following the framework established by Hudson and Parthasarathy within a designated locally convex space. Our main contribution is demonstrating the constructive resolvability of delta differentiated trajectories under impulsive discontinuities for quantum delta-differentiated systems with impulsive discontinuities across hybrid-chronological scaffolds involving unbounded waiting time.

Cryptococcus neoformans is a pathogenic fungus that produces melanin pigmentation,which is a major virulence factor that contributes to its pathogenicity. C. neoformans strains with varying levels of melanin production were screened and selected to evaluate their growth and melanin production under different temperature ranges. This was carried out in order to ascertain the optimal conditions for melanin production and understand the effects of temperature on the phenotypic expression of C. neoformans. Out of the 150 isolates that were tested for melanin production, 10 strains of C.

This research evaluated the quality of honey samples collected from artificial and natural apiaries and the surrounding markets in three municipal locations in Edo State, Nigeria. The physicochemical properties, proximate and heavy metal composition of honey samples  from five farms and five nearby markets were analyzed using standard methods. The results were compared with the Codex Alimentarius General Standards and the European Union Council Directive. A narrow pH range of 3.43±0.03 to 3.87±0.00 was obtained, while the free acidity varied between 27.00±0.10 to 83.70±0.30 meq/kg.

Rainfall variability in Lagos State, Nigeria, poses significant pluvial flood risks, particularly during the high-risk months from May to October. This study applies time series analysis using the ARIMA (2,0,1) model to forecast rainfall patterns from 1980 to 2022 and identify periods of heightened flood susceptibility. Stationarity was confirmed through the Augmented Dickey-Fuller test, and seasonal decomposition revealed consistent peaks during the rainy season.

This study uses Falkner-type hybrid block methods to address the numerical solution of second-order ordinary differential equations (ODEs). The primary challenge with traditional approaches is their limited efficiency and accuracy in handling stiff ODEs and complex boundary conditions. A novel hybrid block method that integrates the Falkner framework with fixed step-size techniques is proposed to overcome these limitations. The coefficients of the new schemes are obtained via Taylor’s series expansion.

Human activities have immensely contributed to pollutants in water bodies such as heavy metals, organic and pathogenic microorganisms. This study was aimed to synthesize and investigate the aseptic efficacy of ZnO-carbonized zobo waste nanocomposite (ZOCZWNC) and Mg-Zn binary oxide (Mg-ZnBO) nanocomposite on Salmonella typhi – gram negative organism and Staphylococcus aureus – gram positive organism as well as removal of cadmium and nickel ions from contaminated water.