School of Biological and Physical Science: Recent submissions
Now showing items 141-160 of 933
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Effects of Varying Storage Conditions on the Longevity of Seeds of Ekebergia Capensis
(African Journal of Education Science and Technology (AJEST), 2021)Ekebergia capensis is an indigenous tree valued for its medicinal uses. However, it is facing extinction due to excessive utilization without counter efforts to restore them, and its slow regeneration rate in nature. ... -
Influence of Economic Activities of the Host Community and Community-Based Ecotourism Forest Management Models on the Conservation of Masaai Mau Forest, Kenya
(Research Gate, 2020)There has been a decline in forest cover of about 5,000 hectares per annum in Kenya leading to an annual reduction in water availability of approximately 62 million m3, translating to an economic loss to the economy of ... -
Impact of Population Services International (PSI) Insecticide-treated Net (ITNs) Distribution on Malaria Prevalence in Pregnancy: A Case of Kimilili-Bungoma Sub-County, Kenya
(South Asian Journal of Parasitology, 2020)Insecticide-treated net (ITN) use is one of the most promising tools which have been shown to reduce the number of mosquito bites. Pregnant women and children less than five years have been specifically designated as ... -
Bioactive Analysis of Auricularia Delicata: Extraction, Purification, and Characterization of Polysaccharides from Auricularia Delicata-Morocco Forest
(Academia, 2020)Auricularia mushrooms are bioactive compounds which are mostly polysaccharides. Many studies have shown the use of Auricularia from wild mushroom for medicinal purposes such as antioxidant, antidiabetic, antitumor, ... -
heoretical Realization of a Two Qubit Quantum Controlled-NOT Logic Gate and a Single Qubit Quantum Hadamard Logic Gate in the Anti-Jaynes-Cummings Mode
(ResearchGate, 2021)The interactive and cumulative effect of temperature and rainfall on land cover change is a priority at global, regional and local scale. This study examined changes in six land cover categories (forestland, grasslands, ... -
Phytochemistry and insecticidal activity of Annona mucosa leaf extracts against Sitophilus zeamais and Prostephanus truncatus
(Taylor and Francis online, 2021)A new oleanane type triterpene characterized as 3α, 24-diacetoxy-12-oleanene (1) together with known compounds 2-10, were isolated from Annona mucosa leaf extracts. Their structural elucidation was accomplished using ... -
Effects of temperature and humidity and effectiveness of some selected antioxidants on lipid oreochromis niloticus L.) of Lake Victoria, Kenya
(Research Gate, 2021)Spoilage of fish and its related products due to oxidation is a primary problem leading to both loses in income and environmental degradation. Various methods such as sun-drying, smoking and refrigeration as currently ... -
Structural, Magnetic And Electronic Properties Of NbN Polymorphs By Ab-Initio Study
(2020)The structural, electronic and magnetic properties of NbN are studied by ab initio method by considering the four polymorphs {B1 (rock salt), B4 (wurtzite), B81 (NiAs) and Bh (WC-type)} of NbN. The results show that ... -
Covid-19 Evolution: Analysis of Public Health Countermeasures in Kenya.
(Research gate, 2020)Millions of people across the globe are currently at a risk of infection of SARS-Cov-2, have been infected and others have died. The coronavirus has spread worldwide despite the multiple countermeasures to limits its ... -
Phytochemical and fungicidal activity of selected plant extracts against Phaeoisariopsis griseola of common bea
(Research gate, 2020)Plant extracts are effective in plant pathogens control and are now becoming popular throughout the world. Allium sativum, Azadirachta indica and Tithonia diversifolia extracts have been reported to exhibit antimicrobial ... -
Synthesis, characterization and application of acid and alkaline activated volcanic ash-based geopolymers for adsorptive remotion of cationic and anionic dyes from water
(Elsevier, 2021)In this work, two geopolymers were prepared by acid activation (GPAc) and alkaline activation (GPAl) approaches using volcanic ash (VA) as the precursor material. The geosorbents were characterized by X-ray diffraction ... -
Single and binary adsorption of sulfonamide antibiotics onto iron‑modifed clay: linear and nonlinear isotherms, kinetics, thermodynamics, and mechanistic studies
(Springer, 2018)Iron-modifed raw kaolinite clay (Fe-MC) was synthesized by co-precipitation method, characterized, and then applied as a low-cost adsorbent to sequester sulfachloropyridazine (SCP) and sulfadimethoxine (SDM), emergent ... -
The effect of substituents on the reactivity of dichloridotriphenylphosphinoruthenium(II) complexes: kinetic and mechanistic study
(Taylor and Francis, 2021)The rates of substitution of chloro ligands from a series of ruthenium(II) complexes, [Ru(κ3-L)(PPh3)Cl2] (L = 2,2′:6′,2′′-terpyridine, 1; 4′-(4-methylphenyl)-2,2′:6′,2′′-terpyridine, 2; 4,4′4″-tri-tert-butyl-2,2′:6′,2′′ ... -
Effect of Cercospora piaropi Tharp and Myrothecium roridum Tode Fries Formulated as Corn Oil Emulsion on Water Hyacinth Shoot Growth under Greenhouse Conditions
(Archives of Ecotoxicology, 2021)A study was done to find out the comparative effect of Cercospora piaropi Tharp and Myrothecium roridum Tode Fries formulated as corn oil emulsion on water hyacinth shoot growth and biomass under greenhouse conditions. ... -
ANTIBACTERIAL ACTIVITY OF CRUDE EXTRACTS OF Solanum incanum AGAINST Escherichia coli and Staphylococcus aureus
(Research gate, 2021)Human pathogenic microorganisms have developed resistance in response to indiscriminative use of commercial drugs. Plants produce many secondary metabolites with microbiocidal activity hence their use in traditional ... -
Phytochemical Screening, Antioxidant Activity and Inhibitory Potential of Five Kenyan Medicinal Plants
(Journal of Advances in Medical and Pharmaceutical Sciences(JAMPS), 2021)The present study was conducted to evaluate preliminary phytochemical analysis and in vitro antioxidant activities of five plants (Olea europaea, Kigelia africana, Terminalia mollis, Croton macrostachyus and Bridella ... -
Microbial characterisation and identification, and potability of River Kuywa Water, Bungoma, Kenya
(INNSPUB, 2020)Water contamination is one of the major causes of water borne diseases worldwide. In Kenya, approximately 43% of people lack access to potable water due to human contamination. River Kuywa water is currently experiencing ... -
Synthesis and characterization of FSB@Fe3O4 composites and application in removal of indigo carmine dye from industrial wastewaters
(Springer, 2021)The syntheses and characterization of fish scale biochar magnetic composites (FSB@Fe3O4) and their applications in the removal of indigo carmine dye from effluents are described. Preparation of the fish scale biochar ... -
Parasite diversity of introduced fish Lates niloticus, Oreochromis niloticus and endemic Haplochromis spp. of Lake Victoria, Kenya
(Springer, 2021)This study reports on the status of metazoan fish parasites in Lake Victoria following the establishment of introduced Lates niloticus (Latidae) and Oreochromis niloticus (Cichlidae) and changes in environmental quality. ... -
Controlling the reactivity of [Pd(II)(N^N^N)Cl]+ complexes using 2,6-bis(pyrazol-2-yl)pyridine ligands for biological application: Substitution reactivity, CT-DNA interactions and in vitro cytotoxicity study
(Elsevier, 2020)Four [(N^N^N)Pd(II)Cl]+ complexes [chloride-(2,2′:6′,2′′-terpyridine)Pd(II)]Cl (PdL1), [chlorido(2,6-bis(N-pyrazol-2-yl)pyridine)Pd(II)]Cl (PdL2), [chlorido(2,6-bis(3,5-dimethyl-N-pyrazol-2-yl)pyridine)Pd(II)]Cl (PdL3) and ...