Browsing Chemistry by Title
Now showing items 1-20 of 36
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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 ... -
Assessement of polycyclic aromatic hydrocarbon(PAH) distribution in sediment and water samples of Winam gulf,Lake Victoria,Kenya
(Maseno university, 2008)Polycyclic aromatic hydrocarbons (PAH) commonly refers to a large class of organic compounds containing two or more fused aromatic rings. They comprise unsubstituted parent PAH and their alkyl-substituted derivatives. ... -
Assessment of Levels of Selected Metal Pollutants in Aquatic Samples Along Lake Victoria Shoreline From Rivers Kisat to Kisian Discharge Points, Kenya
(Maseno University, 2015)Lake Victoria is the largest freshwater and fishery lake in Africa. Kisumu City on the Winam Gulf has industrial activities that dispose of their effluents into the lake which may contaminate aquatic species thus threatening ... -
Assessment of polycyclic aromatic hydrocarbons in .Fish, meat and the effect of cooking on their Concentrations in meat as sources of human exposure in Winam gulf region of Lake Victoria
(Maseno university, 2011)Polycyclic Aromatic Hydrocarbons are of concern m environmental chemistry because they are known or suspected carcinogens and/or toxicants. Fish is a major indicator of the existence of PARs in aquatic environment and ... -
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 ... -
Dissipation Rate of Chlorpirifos Within Mosquito Larvae Habitats In Maseno and its Activity Against the Larvae Relative to Dichlorodiphenyltrichloroethane
(Maseno University, 2016)ABSTRACT Despite more than a century of efforts to eradicate and control malaria, it still remains a major risk to public health and economies of countries in the tropical and subtropical regions of the world. Control of ... -
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 ... -
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 ... -
Effects of Anthropogenic Activities on Selected Water Quality Parameters in Spring Water and Sediments along Amala and Nyangores Tributaries in the Mara River Basin, Kenya
(Maseno University, 2014)Replacing natural forests with commercial crops and/or other small scale farming activities including human settlement have several environmental impacts. The land LISt' practices have the potential of contaminating aquatic ... -
The effects of nitrogenous fertilizers on selected physiochemical parameters and heavy metal loads within Nzioa nucleus sugarcane estate farms in western Kenya
(Maseno university, 2010)Continued use of nitrogenous fertilizers and biosolids in farming is known to affect the soil pH of the farms leading to acidic environment that promotes solubility;bioavailability and mobility of heavy metals. In addition, ... -
Effects of rates and split applications of nitrogen fertilizer on soil and leaf nutrients levels, quality and harvesting age of Ratoon crop of two Sugarcane varieties in Western Kenya
(Maseno University, 2015)Sugarcane is the third most important commodity crop in Kenya after tea and coffee. The productivity of the crop has been declining despite existence of recommended agronomic and cultural practices and opening new sugarcane ... -
Effects of Some Land Use Practices On Water Physico-Chemical Parameters, Nutrient Loads and Heavy Metal Concentrations In Water and Sediments Along the Malta River
(Maseno University, 2014)ABSTRACT Riverine land uses are among factors that influence water quality. Fresh water quality is nerlining and coDseqnemtiy imparting on the ecological heab:h of the ecosystem. Within the Mara River Basin as a result ... -
The effects of zeolite x and y on degradation kinetics of P, P'-DICHLORODIPI-IENYLYTRICIILOROETHANE (DOT) in natural water
(Maseno university, 2010)The study was on degradation kinetics of pesticides in water by zeolites. Pesticides are never target specific and as such, aerial dissipation of pesticides is potentially \ hazardous to man and environmental biodiversity. ... -
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 ... -
Evaluation of chlorpyrifos ethyl elisa kit and assessment of use and spatial distribution and temporal trend of selected organophosphate and carbamate pesticides residues in water, sediment and fish from lake Naivasha
(Maseno University, 2015)Heavy seasonal use of specific organophosphate and carbamate in the catchment area of Lake Naivasha is a potential cause of pollution of sediment, water and fish in the lake. However, there is lack of data on the potential ... -
Fate studies of chlorsulfuron in selected soils within the Mara river basin of Kenya
(Maseno University, 2016)ABSTRACT Chlorsulfuron is a sulfonylurea herbicide used to control broadleaf and grass weeds in wheat farms within the Mara River Basin. It is assumed to be environmentally safe due to low application rates, relatively ... -
Heavy metal concentrations in sediments, Soil, waters and mosses around Pan African paper mills, Webuye
(Maseno university, 2010)Atomic absorption spectroscopic analysis of soils, sediments, water and mosses in the vicinity of Pan African Paper Mills, Webuye, Kenya has revealed the prevalence of the heavy metals Cu, Zn, Cr, Cd, Fe and Pb 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 ...