2024

Palyno-maceral and lithological analysis was carried-out on Mamu Formation, northern Anambra Basin, Nigeria. Analyses of the palyno-maceral composition of the exposed shale unit of the Mamu Formation in the northern Anambra Basin at Ojuwo-Olijo revealed that PM-1 and PM-2 were numerous and poorly sorted, as well as medium to small-sized PM-3 and PM-4, accompanied by Structureless Organic Matter (SOM). This scenario suggests predominantly terrestrial deposition conditions, with possible variations towards coastal and lagoonal environments in certain samples.

By admin, 26 November, 2024

This study discusses thickening annulus in Cauchy’s integral theorem for matrix function via Mobius transformation. We introduce a Jacobi type elliptic integral for arc length using Mobius transformation leading to optimization in the contour integral wherein Trapezoidal rule and Runge-Kutta fourth order method are used yielding approximate solutions to the integral problem. We filtered out noise from solution space using Tikhonov regularization method. This leads to computing for the path integral, path length and size of the path for the Cauchy integral.

By admin, 26 November, 2024

There is no direct method of conversion from Microsieverts Per Hour (μSv/hr) to Counts Per Minute (CPM). This study presents an evaluation of approximation methods of going about this conversion. In this study, indoor and outdoor background gamma radiation measurements are carried out using Fluke Biomedical 451 ion Chamber Survey Meter.

The results of our Japanese HEASARC data reduction from Magnetic Cataclysmic Variable (mCV) FO Aqr is clearly reported in this paper. On June 5, 2009, the Suzaku team used the Suzaku satellite to observe FO Aqr for 33.4 ks with an observation ID of (404032010). Three Gaussian lines were detected via Thermal Bremsstrahlung technique which represented iron lines in our system's spectrum modeling.

Using a distributed hydrological model, this study investigated the influence of spatiotemporal ResolutionResolution of precipitation data on simulating flood peak discharge in the Ramos River Basin. Various precipitation datasets with spatial resolutions (0.25 km to 10 km) and temporal resolutions (1 hour to 48 hours) were evaluated. Results showed that finer resolutions generally provided more accurate predictions of flood peak discharge.

This study was aimed at investigating genomic variation in wild cowpea populations to understand its implications for crop improvement. The method adopted in the study encompassed population structure analysis and gene flow studies, supported by statistical tools, to elucidate genetic dynamics from 3 wild cowpea varieties grown on a complete randomized block design with 3 replicates. Results indicate distinct phenotypic traits and genomic markers associated with adaptive mechanisms, with significant variability observed across populations.

Palynological and lithofacies analysis was carried-out on dark grey shales and dark sandy clay units from Idah well-1, Northern Anambra Basin, Nigeria. Less attention has been given to hydrocarbon exploration in northern Anambra, hence this necessitated this research. The study aimed at investigating the palynological and lithofacies of study rock types in the study well sections of the basin for paleoenvironmental, paleoclimate, paleoecology and hydrocarbon potential.

The importance of institutional repositories in upholding academic integrity has been explored in this study to bridge the gap between intellectual content and ethical conduct in the pursuit of scholarly reputation by major Nigerian universities. Through a case based methodology, an i-Repo architecture abstracting institutional repository services was proposed with mechanisms that deter academic misconduct and promote a culture of originality in academic content, using the University of Benin as a case study.

Tetracarpidium conoforum, (family-Euphorbiaceae), root bark was investigated for its Phytoconstituents and chemical characterization by high performance liquid chromatography (HPLC). The root bark was extracted by hexane and concentrated for further analysis. A portion of the crude extracts recovered by rotary evaporator was screened for their phyto constituents using standard methods and the other portion isolated by vacuum liquid chromatograpy (VLC) was characterized by infra red spectroscopy and HPLC.