Browsing School of Biological, Physical, Mathematics & Actuarial Sciences by Title
Now showing items 120-139 of 246
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International Journal of Statistics and Applied Mathematics 2018; 3(4): 74-84 Reconstructing earth observation vegetation index records with a Bayesian spatiotemporal dynamic model
(International Journal of Statistics and Applied Mathematics, 2018-01)Long-term vegetation index records derived from Earth observation facilitate the characterization of ecosystem response to climate variability and change. The presence of atmospheric components and radiometric inconsistencies ... -
Invasive Species Population Status Modeling Using Stage Based Matrix: Mount Elgon Ecosystem
(Mathematical Theory and Modeling, 2019)The matrix models have been applied to evaluate the impacts and management of tree species. Modeling of invasive species using stage based matrix methods has not been exploited to understand the population structure of the ... -
Inventory, reward value and diversity of Apis mellifera nectariferous and polleniferous forage in Eastern Mau forest, Kenya
(International Journal of Scientific and Research Publications, 2020-02)The study was conducted in Eastern Mau is one of the East Mau forest is an important watershed within the Mau Forest Complex, feeding major rivers and streams that make up the hydrological systems of Lake Victoria and ... -
Isolation, Characterization and Biological Activities of Phytoconstituents from Lonchocarpus Eriocalyx Harms Leaves
(Trends in Phytochemical Research (TPR), 2018-09-27)The plant species Lonchocarpus eriocalyx Harms (Fabaceae) is a deciduous slender tree or shrub which grows up to 15 m tall. It is an important medicinal plant in Kenya used to treat a wide range of ailments including eye ... -
Jump Diffusion Logistic Brownian Motion with Dividend Yielding Asset
(International Journal of Mathematics And its Applications, 2021)Jump diffusion processes have been used in modern finance to capture discontinuous behavior in asset pricing. Logistic Brownian motion for asset security prices shows that naturally asset security prices would not usually ... -
Knockdown of Cytochrome P450 Genes Gh_D07G1197 and Gh_A13G2057 on Chromosomes D07 and A13 Reveals Their Putative Role in Enhancing Drought and Salt Stress Tolerance in Gossypium Hirsutum
(Multidisciplinary Digital Publishing Institute, 2019-03)We identified 672, 374, and 379 CYPs proteins encoded by the CYPs genes in Gossypium hirsutum, Gossypium raimondii, and Gossypium arboreum, respectively. The genes were found to be distributed in all 26 chromosomes of the ... -
Knockdown of Ghalba_4 and Ghalba_5 Proteins in Cotton Inhibits Root Growth and Increases Sensitivity to Drought and Salt Stresses
(Frontiers, 2019-10-15)We found 33, 17, and 20 Alba genes in Gossypium hirsutum, Gossypium arboretum, and Gossypium raimondii, respectively. The Alba protein lengths ranged from 62 to 312 aa, the molecular weight (MW) from 7.003 to 34.55 kDa, ... -
Land Use Changes and Impacts on Livelihoods of the Communities Adjacent to Mt Elgon Forest Ecosystem
(Journal of Geography, Environment and Earth Science International, 2020-09-28)Forests play a critical role in providing essential goods and services to forest adjacent communities. There is, however, insufficient information on how land uses affect the availability and use of forest products and ... -
Larviciding potency of water and ethanol extracts of Phytolacca dodecandra (L’ Herit) on Anopheles gambiae (Diptera: Culicidae)
(BioPublishe, 2015)Introduction: Plant extracts are an attractive target for search of effective malaria vector control agents. The reason for this is that they present a cost effective, target specific and bio-degradable insecticides. The ... -
Layered Rare-Earth Hydroxide Unilameller Nanosheets: Synthesis, Characterization, and Adsorption
(Hindawi, 2020-01-28)Unilameller nanosheets with a lateral dimension of one nanometer have been isolated from a colloidal solution of europium-containing layered rare-earth hydroxide (LRH) material by the flocculation method. The nanosheets ... -
Leaf and Ecosystem Gas Exchange Responses of Buffel Grass-Dominated Grassland to Summer Precipitation
(Elsevier, 2015)stomatal conductance -
Lie Symmetry Analysis of Modified Diffusive Predator-prey Competition System of Equations
(International Journal of Multidisciplinary Sciences and Engineering, 2020)In this paper, a nonlinear fourth order evolution equation is investigated by the Lie symmetry analysis approach. All the geometric vector fields and the Lie groups of the evolution equation are obtained. Finally, the ... -
Lie Symmetry Analysis of Modified Diffusive Predator-prey Competition System of Equations
(International Journal Of Multidisciplinary Sciences And Engineering, 2020-03)The predator-prey equations were developed and used by Lotka and Volterra to analyze the dynamics of biological systems in which two species interact, one as a predator and the other as prey [3]. Several attempts have been ... -
Lie Symmetry Solution of Fourth Order Nonlinear Ordinary Differential Equation: (yy'(y(y') -1)'')'=0
(International Journal of Multidisciplinary Sciences and Engineering, 2017-10)The equation F(x, y, y, y, y, y (4)) 0 is a one-space dimension version of wave equation. Its solutions can be classified either as analytic or numerical using finite difference approach, where the convergence of ... -
Logistic Black-Scholes-Merton Partial Differential Equation: A Case of Stochastic Volatility
(International Journal of Scientific Engineering and Research (IJSER), 2018)Real world systems have been created using differential equations, this has made it possible to predict future trends and behaviour. Specifically, stochastic differential equations have been fundamental in describing and ... -
A Logistic Nonlinear Black-Scholes-Merton Partial Differential Equation: European Option
(International Journal of Research - GRANTHAALAYAH, 2018-06-30)Nonlinear Black-Scholes equations provide more accurate values by taking into account more realistic assumptions, such as transaction costs, illiquid markets, risks from an unprotected portfolio or large investor's ... -
Lonchocarpus eriocalyx (Harms) Herb Extract for Use as Painkillers
(Science Publishing Group, 2020-02-19)Today, many herbal preparations are being prescribed as analgesics. In the past decade, there has been a resurgence of interest in traditional systems of medicine which has become a topic of global interest. Indeed, many ... -
Magnetocaloric Effect and Sign Reversal of Magnetic Entropy Change Across the Spin Reorientation Temperature in R3Fe5O12 (R = Gd, Dy)
(Elsevier, 2020-04-15)The cubic structure with space group Ia3‾d for Gd3Fe5O12 and Dy3Fe5O12 are successfully synthesized and the magnetic behaviors are studied in details. The dc magnetization measurements show that an obvious negative ... -
Malaria Transmission after Artemether-Lumefantrine and Dihydroartemisinin-Piperaquine: A Randomized Trial
(The Journal of Infectious Diseases, 2013-03-06)Artemisinin-based combination therapy (ACT) reduces the potential for malaria transmission compared with non-ACTs. It is unclear whether this effect differs between ACTs. Methods. A total of 298 children (age, 6 months ... -
Malaria vector species distribution and seasonal population dynamics across varied ecological zones in Baringo County, Kenya
(Journal of Mosquito Research, 2017)Vector populations fluctuate on a seasonal basis annually. Knowledge on seasonal abundance and distribution of vector species at the local level would improve vector control programmes and contribute to malaria prevention. ...