School of Biological, Physical, Mathematics & Actuarial Sciences: Recent submissions
Now showing items 221-240 of 246
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Attitudes of students and teachers towards use of computer technology in Geography education
(2010)The ability to display simulated environments through the computer may make it a stimulating instructional tool for illuminating abstract concepts in Geography. In Kenya, there is persistent lack of resources to improve ... -
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) ... -
On local minimum and orthogonality of normal derivations in Cp-classes
(G.I publications, 2017-02)The present paper gives some results on local minimum and orthogonality of normal derivations in Cp-Classes. We employ some techniques for normal derivations due to Mecheri, Hacene, Bounkhel and Anderson. Let CpCp be normal, ... -
On numerical ranges of convexoid operators
(G.I publications, 2017-02)Numerical range is useful in studying operators on Hilbert spaces. In particular, the geometrical properties of numerical range often provide useful information about algebraic and analytic properties of an operator. The ... -
Characterization of the late embryogenesis abundant (LEA) proteins family and their role in drought stress tolerance in upland cotton
(2018)Late embryogenesis abundant (LEA) proteins are large groups of hydrophilic proteins with major role in drought and other abiotic stresses tolerance in plants. In-depth study and characterization of LEA protein families ... -
2-butanone as a carbon dioxide mimic in attractant blends for the Afrotroical malaria mosquitoes anopheles gambie and anopheles funestus
(Malaria Journal, 2017-08-24)Most odour baits designed to attract host-seeking mosquitoes contain carbon dioxide (CO2), which enhances trap catches, given its role as a mosquito fight activator. However, the use of CO2 is expensive and logistically ... -
The inter-play of the opto-electrical properties of cuprite and tenorite semiconductors for solar cell application
(American Journal of Nano Research and Applications, 2017)The electrical and optical properties of cuprous oxide (Cu2O) thin films prepared by D.C. reactive magnetron sputtering technique have been systematically studied. The influence of the film deposition conditions on the ... -
Implication of pollen character coding and their diagnostic value in the determination of taxonomic resemblance among indigofera linn species
(International Journal of Life Sciences Research, 2017)Whereas phenetics emphasizes the use of maximum characters as practicable, decisions on how observations are translated to characters is of importance in systematics in order to partition objects in to nonoverlapping ... -
Technological tools for sustainable development in developing countries: The example of Africa, a review
(Elsevier, 2017-10)Abstract The development of Africa including industrialization such as chemical production, urbanization, agriculture, waste disposal, and electric power generation has a direct and diverse effect on the environment. These ... -
Effect of climatic variability on malaria trends in Baringo County, Kenya
(Malaria Journal, 2017-05-25)Malaria transmission in arid and semi-arid regions of Kenya such as Baringo County, is seasonal and often influenced by climatic factors. Unravelling the relationship between climate variables and malaria transmission ... -
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. ... -
QTL mapping of fiber quality and yield-related traits in an intra-specific upland cotton using genotype by sequencing (gbs)
(International Journal Molecular Science, 2018-02)Fiber quality and yield improvement are crucial for cotton domestication and breeding. With the transformation in spinning techniques and multiplicity needs, the development of cotton fiber quality and yield is of great ... -
Generalizations on normal self-ad joint operators
(JGRMA, 2017-09)We consider certain properties of operators. A lot of studies have been done on reflexivity, compactness and numerical radius attainability on Hilbert space operators [1-12] and the reference therein. -
Fine tuning the microenvironment of [EuW10O36]9- anion leads to the large enhancement of the red light luminescence
(Elsevier, 2017-12)The polyoxometalate (POM) anion of europium (III) decatungstate [EuW10O36]9-exhibits great luminescence quantum yields of approximately 67% but suffers reduced red light emissions that are due to the low 5D0→7F2 transmissions. ... -
On the similarities in properties of essential numerical range and Davis-Wielandt shell of Hilbert space operators
(International Journal of Innovative Research and Advanced Studies (IJIRAS), 2017-07)Let be an operator on an infinite dimensional Hilbert space . Denote the essential numerical range of the operator by and the Davis-Wielandt shell of the operator by . We review the properties of the essential numerical ... -
Numerical solution of dynamic vibration equations
(International Journal of mathematical Archive, 2011-09)In this paper, we examine conservative autonomous dynamic vibration equation, , which is time vibration of the displacement of a structure due to the internal forces, with no damping or external ... -
Symmetry group approach to the solution of generalized burgers equation: Ut + UUx = λUxx
(2013)Symmetry of a system of differential equations is a transformation that maps any solution to another solution of the system. In Lie’s framework such transformations are groups that depend on continuous parameters and ... -
On the structures of quotient groups
(Academic Publications, 5/22/2009)Let J be the Jacobson radical of a commutative completely primary finite ring R such that J k 6= (0) and J k+1 = (0). Then R/J ∼= GF(p r ), the finite field of p r elements, and the characteristic of R is p k where k ≥ 2 ... -
Analytic solution of a nonlinear black-scholes partial differential equation
(Academic Publications, 5/10/2010)We study a nonlinear Black-Scholes partial differential equation whose nonlinearity is as a result of a feedback effect. This is an illiquid market effect arising from transaction costs. An analytic solution to the nonlinear ... -
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 ...