Browsing School of Biological, Physical, Mathematics & Actuarial Sciences by Title
Now showing items 137-156 of 246
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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. ... -
Manipulative lowering of the water table during summer does not affect CO2 emissions and uptake in a fen in Germany
(Ecological Society of America, 2011)We simulated the effect of prolonged dry summer periods by lowering the water table on three manipulation plots (D1–3) in a minerotrophic fen in southeastern Germany in three years (2006–2008). The water table at this site ... -
Mathematical Analysis of Carbon Pollution in Roads with Ventilated Embankments using Godunov FVM
(International Journal of Engineering and Mathematical Sciences, 2018-06)Kenyan Road transport currently accounts for about 78% of the total carbon emission in the country, a percentage that is lately and steadily rising causing enormous scientific concern. Consequently, efficient road design ... -
Mathematical model for co-infection of HIV/AIDS and pneumonia with treatment
(International Journal of Scientific Engineering and Applied Science, 2016)Pneumonia occurs commonly in HIV-infected patients. In this paper, we study a simple mathematical model for the co-infection of HIV/AIDS and Pneumonia. We establish that the model is well presented epidemiologically and ... -
Mathematical model for nutrient exchange across the placenta
(2015)This study presents a new mathematical model for nutrient exchange across the placenta which include nutrient exchange from foetus to mother to provide a system of equations in the form, Y ሶ ൌ AY rԦሺtሻ and whose solution ... -
Mathematical modeling of insulin therapy in patients with diabetes mellitus
(2015)This study presents a Mathematical Model Insulin Therapy in Patients with Diabetes Mellitus which includes external rate at which blood glucose, insulin and epinephrine are being increased in the form, Y =AY+r (t) and ... -
Mathematical modelling of HIV infection
(IJMA, 2013)We formulate a deterministic mathematical model for the HIV/AIDS. -
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 ... -
Membership in wildlife clubs of Kenya and its influence on beliefs about wildlife
(Taylor & Francis, 2008-05-16) -
Metacognitive Monitoring as Predictor of Mathematics Achievement among Students in Public Secondary Schools in Kenya
(International Journal of Psychology and Behavioral Sciences, 2019)This study investigated metacognitive monitoring as a predictor of mathematics achievement among students in public secondary schools in Kisii Central Sub County, Kenya. The study was guided by the Social Development Theory ... -
Modeling co-infection of paediatric Malaria and Pneumonia
(Int. Journal of Math. Analysis, 2013)Malaria and persistent childhood diseases are a major threat to child survival in the developing world. In this paper, we develop and analyse a mathematical model for paediatric malaria and pneumonia co-infection. We ... -
Modeling Household Water Demands Using Sinusoidal Models
(International Journal of Statistics and Applied Mathematics, 2019)Household water in Kenya is used in agricultural activities, industrial activities and other uses. A lot of water is consumed by indoor appliances. The water management strategy affects the household demand for water. The ... -
Morphological, genetic and symbiotic characterization of root nodule bacteria isolated from Bambara groundnuts (Vigna subterraneaL. Verdc) from soils of Lake Victoria basin, western Kenya.
(Journal of Applied Biology and Biotechnology, 2015)Low soil nitrogen (N) is a major constraint for sustainable crop production in smallholder farming systems in Africa. Grain legumes such as bambara groundnuts (Vigna subterraneaL. Verdc). can form N fixing symbiotic ... -
Morphometric study of Senna didymobotrya (Fresen.) H. S. Irwin and Barneby in Kenya
(Journal of Natural Sciences Research, 2017)Herbal medicine has been used for many years and it remains widespread in developing countries while the use of complementary alternative medicine is increasing rapidly in developed countries. Senna didymobotrya is important ... -
Multiple Discriminantanalysis as Applied to language Distinction
(Bulletin of Mathematics and Statistics Research, 2018)This paper presents study on the application of multiple discriminant analysis (MDA) to distinguish between languages with a focus on five languages of the Coastal region of Kenya. Chapter one gives an introduction of the ... -
Negative Magnetization and Inverse Exchange Bias Effect Induced By Modulating the Relative Proportion of Mn in Gd 2 Co 2−Xmnxo6 Perovskites
(Physical Review, 2023-06-28)The magnetic properties of Gd 2 Co2−x Mnx O6 by modulating the relative proportion of Mn are experimentally investigated in this paper. The experimental results indicated that an intrinsic effect of negative magnetization ... -
New synthetic pathways for thiocarbohydrazide and salicylaldehyde azine compounds
(Asian Journal of Chemical Sciences, 2017)Thiocarbohydrazide synthesis is an important intermediate step for many hydrazine organic synthetic reactions. Synthesis of thiocarbohydrazide can be done by reaction of carbon disulfide with hydrazine (hydrazinolysis) ... -
Nonlinear H∞ Guidance Design for Missile against Maneuvering Target
(Science Domain, 2017-05-01)A new guidance law is derived for missile against maneuvering target by adopting nonlinear H∞ control theory. The guidance law is based on three dimension (3D) nonlinear kinematics described by modified polar ...