School of Biological and Physical Sciences: Recent submissions
Now showing items 41-60 of 126
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The cooling effect of air on flat plate solar energy collectors
(Maseno university, 2021)Use of solar energy devices requires that they be exposed to receive maximum solar radiation. Unfortunately, the intensity of solar radiation incident on these devices varies throughout the day with the position of the sun ... -
The effects of ocimum gratissimum, ipomoea batatas And brassica oleracea var botrytis extracts on the Growth and disease-causing capability of ralstonia Solanacearum in solanum tuberosum
(Maseno university, 2010)Irish potato (Solanum tuberosum L.) is a major cash and food crop worldwide. The production of this crop has in a great way been negatively affected by the extensive spread of bacterial wilt that is caused by Ralstonia ... -
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. ... -
Monitoring of carbofuran residues in Laikipia and Isiolo districts in Kenya for ecological risk Assessment
(Maseno university, 2010)Granular carbofuran which was widely used to control agricultural pests in Isiolo and Laikipia districts was also misused by local farmers and pastoralists to kill predators leading to massive deaths of Gyps vultures ... -
Sensitivity of thermally deposited titanium Dioxide thin film for Liquefied petroleum gas sensing application
(Maseno university, 2010)Titanium dioxide thin films have a wide scope of application including gas sensing. Other studies have been carried on the sensing ability ofTi02 to natural gases (02, CO2 and H2) and hydrocarbons (ethanol and butane). ... -
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. ... -
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 ... -
Evaluation of phenetic characters ·and growth Performance of native wood ear mushrooms (Auricularia species) on partially composted Agricultural wastes
(Maseno university, 2010)Wood ear mushrooms (Auricularia species) are a group of jelly fungi which occur as saprophytes on stumps or at the bases of dead or dying woody trees found in tropical regions. They have an ear shaped fruiting body from ... -
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, ... -
Influence of area of production, nitrogenous Fertilizer rates and plucking intervals on the \ production of fatty acids in clonal tea '(Camellia sinensis (L.O) Kuntze) leaves
(Maseno university, 2011)Tea, Camellia sinensis, is widely grown in the highlands of Kenya for manufacture of mainly black tea. The most costly inputs in tea cultivation are nitrogenous fertiliser and plucking which are key determinants of yield ... -
Phytochemical evaluation of Elaeodendron buchananii stem Bark for microbial activities
(Maseno university, 2010)Public health is under serious threat due to wide array of emerging and re-emerging infections as a result of resistance of microorganisms to first line drugs. Despite the wide availability of clinically useful antifungal ... -
Effects of ungulate Herbivory and tree canopy on Ecosystem processes in Ruma National park, Kenya
(Maseno university, 2010)Herbivores and tree canopies may have significant influences on savanna ecosystem functioning that are not yet clearly understood. Positive influences of grazers and trees may be associated with fecal deposition and the ... -
Indoor levels of polycyclic aromatic Hydrocarbons from wood burning in Rural houses in western Kenya
(Maseno university, 2011)Western Province of Kenya has prevalence of grass-roofed traditional houses, where cooking is done in open fire places using various biomass types, which leads to accumulation of soot under the roofs. Polycyclic Aromatic ... -
Anti-bacterial activity of Moringa spp seed.extracts and their water flocculation ability
(Maseno university, 2010)Water-borne diseases are some of the main problems in developing countries; about 1.6 million people compelled to use contaminated water. In many communities in the Winam Division,water clarification/purification methods ... -
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 ... -
Kinetic Studies of Malathion Dissipation Degradation in Lake Victoria Water in the Presence of Zeolite
(Maseno University, 2011)Malathion is an organophosphorus pesticide widely employed in controlling pests in agriculture, household, stored grains, greenhouse, forestry and public health. Malathion usually adsorbs on soilsand through surface ... -
Growth and Physiological Responses of Bambara Groundnut to Sodium Chloride Salinity
(Maseno University, 2012)Bambara groundnut is one of the most neglected and under-utilized indigenous African legume with potential to alleviate food insecurity, malnutrition and poverty in tropical semi-arid regions of Africa. The crop is drought ... -
Real- Time Human Immunodeficiency Virus test Analyzer Based on Digital Image Processing
(Maseno University, 2011)Manykinds of HIV testing kits have recently become available to be used in determining whetheran individual's blood contains HIV virus or not. In the determine method of the HIV rapidtestprocedure, when a drop of blood is ... -
Evaluation of Plasmodium Falciparum Resistance to Sulfadoxine- Pyrimethamine in Human Immunodeficiency Virus(HIV) Infected and Non-Infected Pregnant Women in A Malaria-Endemic Region of Western Kenya
(Maseno university, 2012)Malaria and Human immunodeficiency virus (HIV) co-infection in pregnancy is a major cause of anaemia, low birth weight (LBW) abortion and infant mortality in malaria-endemic countries of sub-Saharan Africa. Intermittent ... -
Estimation of Trophic State Indices And Phytoplankton Quotients in Kisumu Bay, Nyanza Gulf, Lake Victoria
(Maseno university, 2012)Kisumu Bay is greatly impacted by pollution from anthropogenic activities around Nyanza Gulf and from increasing levels of industrial and municipal waste discharges \ from Kisumu City. This has resulted in significant ...