School of Pure and Applied Sciences
Recent Submissions
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“God Didn’t Make a Mistake in Creating Me”: Intrapersonal Resilience Processes among Gay and Bisexual Male Youth in Kenya
(MDPI, 2021)Gay and bisexual male youth in Kenya experience human rights violations, including pervasive stigma and discrimination, and these oppressive forces are associated with elevated rates of mental health concerns. Despite ... -
Growth performance of Nile Tilapia (Oreochromis niloticus) fi ngerlings fed with water spinach (Ipomoea aquatica) diets
(Ann Mar Sci., 2022-04)Nile tilapia (Oreochromis niloticus) are herbivores with longer coiled intestines compared to carnivores; mouth characteristics necessary for plant shredding. Hence, several studies have been conducted to replace feed ... -
Biodigester attribute tradeoffs among farmers in Kiambu and Machakos Counties, Kenya
(SSRN, 2022-04)The diffusion of biodigester technology can contribute support towards the achievement of the global goals brokered under the auspices of the United Nations. They have been promoted among farmers but low adoption remains ... -
Electrochemical detection of dioctyl phthalate using molecularly imprinted polymer modified screen-printed electrodes
(Elsevier, 2022)We report the investigation of electropolymerised molecularly imprinted polymers (E-MIPs) for the determination of dioctyl phthalate (DOP). Low-cost and eco-friendly commercially available screenprinted electrodes (SPEs) ... -
Lactic Acid Bacteria from African Fermented Cereal-Based Products: Potential Biological Control Agents for Mycotoxins in Kenya
(Journal of Toxicology, 2022)Cereals play an important role in global food security. Data from the UN Food and Agriculture Organization projects increased consumption of cereals from 2.6 billion tonnes in 2017 to approximately 2.9 billion tonnes by ... -
Enhanced hexazinone degradation by a Bacillus species and Staphylococcus species isolated from pineapple and sugarcane cultivated soils in Kenya
(Environmental Chemistry and Ecotoxicology, 2022)In this work, hexazinone-degrading bacterial strains from Kenyan tropical soils with long term application history were isolated and identified. Non-sterile soils from sugarcane and pineapple cultivated fields with over ... -
Advances in sample pretreatment and detection of PCBs in the environment
(Journal of Hazardous Materials Advances, 2021)Pollution of the environment by polychlorinated biphenyls (PCBs) continues to be a global concern because of their toxicity, persistence, long-range transport properties and ability to bioaccumulate in fatty tissues. PCBs ... -
Nilpotent covers of symmetric and alternating groups
(2020)We prove that the symmetric group Sn has a unique minimal cover M by maximal nilpotent subgroups, and we obtain an explicit and easily computed formula for the order of M. In addition, we prove that the order of M is ... -
Photometric sensing of heavy metal ions using a naphthoquinodimethyl-bis-thioamide dye: Selectivity & photophysics of the metal organic complexes
(Elsevier, 2022)As Mother Nature is experiencing catastrophic environmental pollutions from both natural sources and anthropogenic activities, many scientists have been working around the clock to develop environmentally benign and ... -
Estimation of Conditional Weighted Expected Shortfall under Adjusted Extreme Quantile Autoregression
(Scientific Research Publishing Inc., 2021-07-14)In this paper, we present an estimator that improves the well-calibrated coherent risk measure: expected shortfall by restructuring its functional form to incorporate dynamic weights on extreme conditional quantiles used ... -
Modeling the Effect of Binding Kinetics in Spatial Drug Distribution in the Brain
(Hindawi, 2021-07-05)A 3-dimensional mathematical model is developed to determine the effect of drug binding kinetics on the spatial distribution of a drug within the brain. The key components, namely, transport across the blood-brain barrier ... -
Risk factors for Aedes aegypti household pupal persistence in longitudinal entomological household surveys in urban and rural Kenya
(Springer Nature, 2020)Aedes aegypti is an efcient vector of several arboviruses of public health importance, including Zika and dengue. Currently vector management is the only available avenue for disease control. Development of efcient vector ... -
Species Composition, Phenotypic and Genotypic Resistance Levels in Major Malaria Vectors in Teso North and Teso South Subcounties in Busia County, Western Kenya
(Hindawi, 2020-01)Knockdown resistance (kdr) is strongly linked to pyrethroid insecticide resistance in Anopheles gambiae in Africa, which may have vital significance to the current increased use of pyrethroid-treated bed net programmes. ... -
Simultaneous detection of anthracene and phenanthrene on Ag-Au alloy nanoparticles/overoxidized-polypyrrole composite modified carbon electrode
(IOSR Journal of Applied Chemistry, 2019-02-22)A simple and highly selective amperometric sensor for simultaneous determination of anthracene (AN) and phenanthrene (PHE) has been developed based on a composite of overoxidized-polypyrrole (PPyox) and Ag-Au ... -
Application of Central Composite Design to Optimize Spawns Propagation
(Scientific Research Publishing, 2020)Despite the increased recognition of the nutritional value of the Oyster mushroom, coupled with its ability to tolerate a wide range of climatic conditions, its production is still at infancy stage with low adoption rate ... -
Optimization of Oyster Mushroom Yield By Using Simplex-Centroid Mixture Design
(Journal of Scientific Research and Innovative Technology, 2020)Despite the increased recognition of the nutritional value of the Oyster mushroom, coupled with its ability to tolerate a wide range of climatic conditions, its production is still at infancy stage with low adoption rate ... -
Dual-band graphene-induced plasmonic quarter-wave platemetasurface in the near infrared
(Springer Berlin Heidelberg, 2017)Weak graphene plasmon is a key challenge for graphene-based meta surfaces in the visible and near-in-frared regions. In this study, we have numerically designed and demonstrated a tunable, ultra thin, ... -
Graphenatedtantalum(IV)oxideandpoly(4-styrenesulphonicacid)-dopedpolyanilinenanocompositeascathodematerialinanelectrochemicalcapacito
(Pergamon, 2014)Nanostructuredpoly(4-styrenesulphonicacid) and tantalum(IV)oxide-doped polyaniline nano composite were synthesized and their elector-conductive properties were determined.The oxide was synthesized using a modified sol gel ... -
Extreme Value Modelling of Rainfall Using Poisson-generalized Pareto Distribution: A Case Study Tanzania
(Science Publishing Group, 2019)Extreme rainfall events have caused significant damage to agriculture, ecology and infrastructure, disruption of human activities, injury and loss of life. They have also significant social, economical and environmental ... -
Analysis of Head Loss in Pipe System Components: Quasi-one-Dimensional Nozzle Flow
(2014)The problem under investigation is to determine the flow-field variables that is the total head which is the sum total of Elevation head, velocity head and pressure head instantaneous distributions as ...
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