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Mathematical Modelling of the COVID-19 Pandemic with Demographic Effects
(Springer Nature, 2021-03-17)
In this paper, a latent infection susceptible–exposed–infectious–recovered model with demographic efects is used to understand the dynamics of the COVID-19 pandemics. We calculate the basic reproduction number (R0) by ...
The Role of Bio-Extracted Reduced Graphene Oxide in the Crystallization Kinetics of Chitosan Bio-Polymer
(Scientific research and community, 2021-01-29)
Carbon nanomaterials have recently attracted wide scientific applications due to their tunable properties. These novel materials act as best fillers that can provide substantial benefits due to their high strength, thermal ...
Properties of Spectrally Bounded Compact Elementary Operators
(DOI: 10.47443/cm.2021.0012, 2021-03-31)
Spectrally bounded compact elementary operators on dense irreducible subalgebras of C ∗ -algebras are characterized. Also, it is shown that left multiplications, right multiplications, generalized derivations and basic ...
Using organic wastes as feed substrates for black soldier fly larvae
(Wegeningen Academic Publishers, 2021-08-25)
Feeding black soldier fly larvae (BSFL) on locally available organic wastes has the potential of providing an alternative source of protein to fishmeal and soybean used in animal feed formulation. This can also mitigate ...
Sweet Potato Leaf Spot Diseases and Farmer’s Indigenous Knowledge in Parts of Western Kenya
(International Journal of Research Studies in Agricultural Sciences (IJRSAS), 2021-11)
Sweet potato (Ipomoea batatas L.) is a starchy, tuberous root with worldwide consumption.
Production of sweet potatoes in Kenya is low due to disease constraints, such as fungal sweet potato leaf spot (SPLS), which is not ...
Evaluation of CO2 in Saline Aquifers under Deep Ground Water Systems in Urumqi River Basin of Xinjiang, China
(Ecological Engineering & Environmental Technology, 2021-09-17)
The future emissions of carbon dioxide (CO2) are likely to increase beyond the current levels due to rapid industrialization in China. Several methods have been proposed as possible mitigation strategies to reduce the ...
Assessment of Land Use and Land Cover Changes in Kenya’s Mt. Elgon Forest Ecosystem
(African Journal of Ecology, 2021-05-08)
Current land-use trends in Kenya's montane forest ecosystems show that land uses are changing fast due to natural and anthropogenic factors and these changes could have devastating effects on the environment. One such ...
Optimal Allocation in Small Area Mean Estimation Using Stratified Sampling in the Presence of Non-Response
(International Journal of Statistical Distributions and Applications, 3/12/2021)
Sample survey provides reliable current statistics for large areas or sub-population (domains) with large sample sizes. There is a growing demand for reliable small area statistics, however, the sample sizes are too small ...
A Combination of Dividend and Jump Diffusion Process on Heston Model in Deriving Black Scholes Equation
(International Journal of Statistics and Applied Mathematics, 12/10/2021)
The reality that exists in a stock market situation is that assets do pay dividend to owners of assets or derivative securities. Dupire, Derman and Kani built an option pricing process with a dividend yielding diffusion ...
Formulating Black Scholes Equation Using a Jump Diffusion Heston’s Model
(International Journal of Statistics and Applied Mathematics, 12/7/2021)
In modern financial mathematics, accurate values are obtained by taking into account a considerable number of more realistic assumptions in logistic Black Scholes equation. The aspects considered here are cost of transactions ...