Browsing School of Biological, Physical, Mathematics & Actuarial Sciences by Title
Now showing items 40-59 of 246
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Completely Positive Map from M4(C) to M5(C) on Positive Semidefinite Matrices
(Journal of Mathematical Analysis and Modeling, 3/29/2022)Positive Maps Are Essential In the Description of Quantum Systems. However, Characterization Of The Structure Of The Set Of All Positive Maps Is A Challenge In Mathematics And Mathematical Physics. We Construct A Linear ... -
Conditional variations in temperature response of photosynthesis, mesophyll and stomatal control of water use in rice and winter wheat
(2016)Environmental responses of photosynthesis and CO2 diffusive conductance as fundamental information for photosynthesis-transpiration coupled model have been increasingly concerned while are still research areas with unanswered ... -
Conditions for Positivity of Operators in Non-unital C*-algebras
(International Journal of Mathematical Analysis, 1/9/2015)In this paper, we present results on the necessary and sufficient condi-tions for positivity of operators in non-unital C*- algebras -
Construction of nominal yield curve for Nairobi securities exchange: an improvement on monotone preserving r(t)t interpolation method
(Scientific Research Publishing Inc., 2015-11)There is no agreed-upon method used to construct yield curves at the Nairobi Securities Exchange. The existing practice is that each financial company uses in-house methods to construct the yield curves for their pricing ... -
Crop Damage by Granivorous Birds Despite Protection Efforts by Human Bird Scarers in a Sorghum Field in Western Kenya
(Journal of African Ornithology, 2014-11-14)Cereal crop damage from granivorous birds poses a serious food security problem for subsistence farmers in sub-Saharan Africa. In this region, farmers may rely on human ‘bird scarers’ to limit crop damage. Here we report ... -
Density and Dentability in Norm-Attainable Classes
(Elsevier Ltd., 2024-03-18)We establish the norm-denseness of the norm-attainable class $NAB(H)$ in the Banach algebra $B(H)$, which consists of all bounded linear operators on a complex Hilbert space $H$. Specifically, for every $O \in NAB(H)$ and ... -
Derivation and solution of the heat equation in 1-D
(International Journal of Engineering, Science and Mathematics, 2013)Heat flows in the direction of decreasing temperature, that is, from hot to cool. In this paper we derive the heat equation and consider the flow of heat along a metal rod. The rod allows us to consider the temperature, ... -
Derivation of Black Scholes Equation Using Heston’s Model with Dividend Yielding Asset
(International Journal of Statistics and Applied Mathematics, 12/5/2021)Black Scholes formula is crucial in modern applied finance. Since the introduction of Black – Scholes concept model that assumes volatility is constant; several studies have proposed models that address the shortcomings ... -
Design and Synthesis of Reusable Nanoparticles for Reversible Chemisorption of Hexavalent Chromium Anions from Aqueous Media and Catalysis
(Journal of Chemistry, 2020-07-14)A magnetically active nanocomposite material has been synthesized from the reaction mixture of magnetite core iron nano-particles electrostatically coated with SiO2, hydrotalcite nanosheets ([Eu8 (OH) 20 (H2O)n] 4+), and ... -
Determining Equations of Fourth Order Nonlinear Ordinary Differential Equation
(ResearchGate, 2018)Determining Equations are linear partial differential equations. The equation to be solved is subjected to extension generator. The coefficient of unconstrained partial derivatives is equated to zero and since the equations ... -
Deterministic mathematical model for fish harvesting
(INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY, 2015)Differential equations have been used to create mathematical models of real world systems in which rates of change are involved, for example in the study of how population grows or shrinks. One of the earliest models by ... -
Development and Optimization of the Suna Trap as A Tool for Mosquito Monitoring and Control.
(BMC- Malaria Journal, 2014-07-08)Monitoring of malaria vector populations provides information about disease transmission risk, as well as measures of the effectiveness of vector control. The Suna trap is introduced and evaluated with regard to its potential ... -
Development, characterization and antimalarial efficacy of dihydroartemisinin loaded solid lipid nanoparticles
(ELSEVIER, 2016-04)Effective use of dihydroartemisinin (DHA) is limited by poor water-solubility, poor pharmacokinetic profile and unsatisfactory clinical outcome especially in monotherapy. To reduce such limitations, we reformulated DHA ... -
Diagnosis and Management of Early-Onset Neonatal Sepsis (Eos) Among High-Risk Neonates in Kisii Teaching and Referral Hospital and Homabay County Referral Hospital, Western Kenya
(Clinical and Medical Case Reports, 2018)Neonatal sepsis (NS) is the third most common contributor to neonatal deaths worldwide, the majority of which occur within the first 72 hours of life (Early-onset sepsis [(EOS)]). Diagnosis of EOS is challenging due to ... -
Dietary Preference of the Rothschild’s Giraffes (Giraffa Camelopardalis Rothschildii) Translocated to Ruma National Park, Kenya
(International Journal of Environmental Science, Management and Engineering Research, 2012-12-20)Without monitoring of animal behavior and the productivity of their environment, the success of a translocation cannot be properly ascertained, nor can important lessons be learned. This study investigated habitat utilization ... -
The differential effect of the free maternity services policy in Kenya
(African Journal of Primary Health Care and Family Medicine, 2019-05-27) -
Diffuse PAR irradiance under clear skies in complex alpine terrain
(Elsevier, 2004)The diffuse component of photosynthetically active radiation (PAR) is important for models that calculate carbon dioxide uptake in photosynthesis by vegetation. Few PAR measurements are usually available, especially in ... -
Diversity of endophytic bacteria Isolated from Leguminous Agroforestry Trees in Western Kenya
(AMB Express, 2024-02-08)Plants have diverse and vast niches colonized by endophytic microorganisms that promote the wellbeing of host plant. These microbes inhabit internal plant tissues with no signs of ill health. Bacterial endophytes from many ... -
Diversity of Rhizobia Nodulating Phaseolus vulgaris L. in two Kenyan soils with contrasting pHs.
(American Society for Microbiology, 1995)Rhizobia were isolated from two Kenyan soils with pHs of 4.5 and 6.8 and characterized on the basis of their host ranges for nodulation and nitrogen fixation, colony morphologies, restriction fragment fingerprints, and ... -
Drought responses of Arrhenatherum elatius grown in plant assemblages of varying species richness
(Elsevier, 2011)Evidence exists that plant community diversity influences productivity of individual members and their resistance and resilience during and after perturbations. We simulated drought within the long-term EVENT experimental ...