Generalised Multivariate Regression Estimators (GMREs) with multi-auxiliary
quantitative variables in multi-phase sampling have been used over time to estimate
the population mean. These estimators are structurally complex ...
Economic recession has become a global and reccurring phenomenon which poses
worrisome uncertainties on assets’ returns in financial markets. Various stochastic
models have been formulated in response to price instability ...
The dynamics of the stock market indices log-returns (∆(lnS~t)) have been characterised by non-normal features such as upward and downward jumps of different
measures, asymmetric and leptokurtic features. The Bi-Power ...
The concept of stability in differential equations is of immense importance particularly for determination of properties of solutions of nonlinear equations which
cannot be readily solved to obtain closed analytic solutions. ...
Diabetes and oxidative stress are responsible for an upsurge in the number of
neuropathies, retinopathy, nephropathy, cancer, cardiovascular dysfunction and
mortality world-wide. Traditionally, Calophyllum inophyllum and ...
The conventional Autoregressive Integrated Moving Average with Exogenous Variables
(arimax) model with Normal Error term and Multiple Linear Regression (MLR) require
stringent assumptions of normality of error term and ...
The potential of L-asparaginase to inhibit acrylamide formation (a carcinogenic compound
from fried starchy foods) and the growth of cancer cells have attracted scientific attention in
biomedical fields. Utilisation of ...
Agricultural soil nutrients variability assessment for sustainable crop production has
usually been through soil geochemical/chemical analyses which are laborious and
expensive, thus necessitating the need for faster and ...
Landfilling remains the major method of municipal solid waste disposal in Nigeria. However, the inadequacy of personal protective equipment and proximity of residential quarters to waste dumpsites predispose workers and ...
Regime change is the tendency of the Stock Market Returns (SMRs) for global market to change
their behaviour abruptly due to changes in financial regulations and policies. This behaviour has
no exemption to emerging ...
Tailings produced from tin-mining operations containing elevated levels of Natural Radionuclides (NRs; ) need to be disposed properly to prevent environmental contamination. The knowledge of the mobility of NRs in contaminated ...
Millimeter Wave (MMW) radio systems operating at 30 to 300GHz band provides
higher bandwidth, frequency reuse and communications security but suffers greatly
from attenuation by rain. The design of radio communication ...
Quantum dots are nanomaterials that have several potential applications including the
production of efficient solar cells. Accurate theoretical studies of excitation energies
and absorption spectra of quantum dots are ...
Exploitation of minerals and other factors including density variations reduce the stability of the lithosphere from changes in Earth’s compactibility. The Geopotential Gravity Models (GGMs) are presently used to determine ...
Brinkman-Forchheimer Equations (BFE) are used to describe non-Darcy be havior of uid ow in a saturated porous medium. Researchers in this area have
focused on the study of structural stability and long time behavior of ...
Co-infection with malaria often complicate and increase the severity of disease
pathogenesis. The co-infection of malaria and Lassa fever has not been fully
understood. Many researcher have worked on mathematical models ...
The problems of pricing and hedging in nancial market are fundamental because of
uncertainties in the market which are measured by the sensitivities of the underlying
assets. Ito calculus has been used to develop several ...
The adoption of Open Pit Slope Design (OPSD) used in exploitation of minerals is known to impact mining outputs and safety if slope stability is properly determined. However, slope stability is dependent on the understanding ...
Boreholes and wells are the most reliable sources of groundwater in Lokoja and its environs. Some aspects of hydrochemical properties of the groundwater resource have been assessed. However, stable isotopes characterisation ...
The associated sulphide mineralisation provinces comprising lead-zinc ore in Nigeria have
always been associated with the sedimentary Benue trough. However, there had been reports of
associated sulphide mineralisation ...