Browsing Chemistry by Issue Date
Now showing items 21-36 of 36
-
Comparison of Variations in Soil-Foliar Nutrients Levels and Productivity of Three Ratoon-Sugarcane Cultivars Due to Nitrogen-Potash Rates and Harvesting Age in Western Kenya
(2016)Sugarcane productivity in Kenya has declined despite increased acreage and new cultivars possibly due to use of old-cultivar agronomic inputs. The N-K2O optimal rates for new cultivars are unknown. Kenya Sugar Industry ... -
Determination of effective combinations of selected local materials for treatment of borehole water and to compare their effeciency with municipal water treatment technology
(Maseno University, 2016)Use of contaminated water risks human lives hence should be treated to meet drinking water quality guidelines. The most applied technique is municipal water treatment technology (MWTT) though inaccessible in peri-urban/rural ... -
Phytochemical investigations of lonchocarpus eriocalyx (harms), alysicarpus ovalifolius (schumach) and erythrina abyssinica (dc) for antiplasmodial, larvicidal, mosquitocidal and antimicrobial activities
(Maseno University, 2016)Management of parasitic disease continues to be a burden and a major public health problem the world over today. Malaria is most lethal of the parasitic vector-borne diseases due to drug and vector resistance to the available ... -
Evaluation of anticonvulsant activity of extracts and isolates from Maytenus Heterophylla
(Maseno University, 2017)Convulsion is a chronic neurological disorder that develops in up to 5% of the world’s population with prevalence of nearly 88% occurring in Sub-Saharan Africa, prompting serious medical, social, health related stigma ... -
Effect of NPK blended fertilizer application on soil chemical properties, growth, Chlorophyll content and nutrient uptake on Finger millet (Eleusine coracana l. gaertn.) grown in acidic soils.
(Maseno University, 2017)Finger millet (Eleusine coracana L) is one of the most important cereal crops in Kenya. It is an important staple food rich in minerals and vitamins required for good health. Finger millet has the ability to grow in stressful ... -
Sorption of sulfonamides by γ-fe2o3 modified natural clay: Isotherms, Kinetics and Thermodynamics studies
(Maseno University, 2018)ABSTRACT In recent years, research has indicated the ... -
Effects and the relationship between nitrogenous fertilizer application rates and plucking intervals on some soil quality indicators and yield of tea (Camellia Sinensis (l.) in eastern Africa tea growing regions
(Maseno University, 2018)Eastern Africa tea is grown in high rainfall areas causing high nutrients depletion through leaching and surface run-off. Nutrients are also removed with harvested crop. The depletion requires nutrients replenishment through ... -
Survey of greenhouse gas fluxes from different vegetation, seasons and landscape units in small scale farming systems in lower Nyando-Kenya
(Maseno University, 2018)Greenhouse gases (GHGs) emissions data from large-scale agricultural activities are available. In developing countries, e.g. Kenya, agriculture is dominated by smallholder farming, data on the assessment of possible ... -
Optimization of Graphene oxide with methyl-β-Cyclodextrin and carbon Nanotubes with Polypyrrole for removal of lead (ii) and copper (ii) ions from water
(Maseno University, 2018)ABSTRACT Heavy metals pose risks to the humans and the environment. Lead (II) and copper (II) are of particular concern because they can cause irreversible damage to vital body organs. Their sources include leaded paints, ... -
Residual diazinon in brassica oleracea var. Acephala and influence of application conditions on its levels in Kimira-oluch smallholder farmers improvement project, Kenya
(Maseno university, 2021)Use of pesticides in agriculture often causes residual effects on crops with potential health risks. Diazinon, a synthetic pesticide whose dietary exposures have been associated with human health impacts is popular in the ... -
Hydrothermal crystallization of zeolite catalysts using kaolin and volcanic ash materials for biodiesel synthesis from Jatropha curcas and waste cooking oils
(Maseno university, 2022)Although biodiesel is a promising alternative source of energy, the cost of its production remains high because of the use of expensive feedstocks and catalysts. Zeolites derived from clay and volcanic ash as alternative ... -
Phytochemical evaluation of Ocimum kilimandscharicum GUERKE, Gnidia subcordata MEISN AND Annona mucosa jacq leaves for secondary metabolites and their insecticidal activities against Sitophilus zeamais and Prostephanus truncatus.
(Maseno University, 2023)Global food security of which maize is a major component is threatened by food loss due to storage insect pests. Sitophilus zeamais and Prostephanus truncatus cause stored maize losses of 20% world wide and 45% in Africa. ... -
Antimicrobial activities of extracts and isolates from Senna didymobotrya flowers.
(Maseno University, 2023)The emerging trends in pathogenic microorganisms becoming resistant to available antibiotics coupled with the evolution of new strains of pathogens causing diseases, is a major concern to the global health community and ... -
Synthesis and characterization of municipal waste incinerator fly ash based Geopolymers for the removal of Endosulfan from water: kinetics, isotherms, and thermodynamics
(Maseno University, 2023)Endosulfan is a broad spectrum organochlorine insecticide which acts as a contact poison for controlling a wide variety of insects. However, extensive and uncontrolled use of insecticides leads to water pollution. ...