School of Science: Recent submissions
Now showing items 421-440 of 463
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HYDRODYNAMIC ANALYSIS OF A FIXED INCLINE SLIDER BEARING
(2016-05-23)In the present day technological scenario, machines rotating at high speeds and carrying heavy rotor loads are used. As a result, fixed incline slider bearings are used. They are designed for high axial loads. When a bearing ... -
DIFFUSION OF ASPIRIN-(ACETYLSALICYLIC ACID) BASED DRUGSIN SODIUM HYDROXIDE SOLUTION AT 25C
(2016-05-23)Diffusion is a macroscopic motion of components of a system that arises from concentration difference and plays a vital role in drug migration in the bodygoverned by Fickian diffusion laws. This project considers effective ... -
FUNGAL SPECIES AND AFLATOXIN CONTAMINATION IN PEANUTS
(2016-05-20)Aflatoxins are a group of mycotoxins mainly produced by Aspergillus flavus and A. parasiticus mostly on cereals and peanuts. Aflatoxins adversely affect food and feed safety thereby affecting human and animal health as ... -
GENETIC DIVERSITY AND POPULATION STRUCTURE OF NAPIER GRASS (Pennisetum purpureum Schumach) IN WESTERN KENYA
(2016-05-20)Napier grass (Pennisetum purpureum Schumach) is the dominant livestock fodder in all stall feeding systems in Kenya with other numerous applications. To date, no study in Kenya has been done on genetic diversity in napier ... -
ANTIFERTILITY PROPERTIES OF SELECTED KENYAN MEDICINAL
(2016-05-20)It has been reported that many deaths occur in developing countries due to pregnancy related complications as well as during illegal abortions. The abortions are mainly due to unplanned pregnancies that can be avoided ... -
IMPACT OF WATER AND SEDIMENT QUALITY ON BACTERIAL DENSITIES AND DIVERSITIES IN MARINE POND CULTURE SYSTEM IN MTWAPA CREEK, KENYA
(2016-05-20)The purpose of the present study was to analyze the impact of water quality and sediment quality on temporal variations of bacterial densities and diversities in marine pond culture system in Mtwapa Creek. The work was ... -
MODELING THE EFFECTIVENESS OF CONTROL MEASURES
(2016-05-20)The lungs are a principal target of HIV-associated complications and persons with HIV-infection are at an increased risk for a wide spectrum of opportunistic Pneumonias. In this research an HIV/AIDS and Pneumonia ... -
ISOLATION AND CHARACTERIZATION OF NEW COMPOUNDS FROM Strychnos henningsii AND THEIR ANTI-MALARIAL ACTIVITIES
(2016-05-20)Traditional medicines play an important role in the management of common fever associated with malarial symptoms, particularly in the rural Africa. However, their potential use as sources of medicines has not been fully ... -
EFFECTS OF TEMPERATURE ON METAL OXIDE SEMICONDUCTOR FIELD EFFECT TRANSISTOR CHARACTERISTICS
(2016-05-20)The metal-oxide-semiconductor field-effect transistor (MOSFET) is a transistor used for amplifying and switching on circuits. In this study, the MOSFET parameters were computationally modeled, analysed and presented. The ... -
APPLICATIONS OF BAYESIAN METHODS IN ANALYSIS OF VARIANCE
(2016-05-20)Analysis of variance (ANOVA) is a standard method for describing and estimating heterogeneity among the means of a response variable across the levels of multiple categorical factors. In most experimental settings, ANOVA ... -
EFFICACY OF Tagetes minuta L AND Tephrosia vogelii Hook CRUDE LEAF EXTRACTS ON Tetranychus urticae Koch AND Aphis fabae Scopoli
(2016-05-20)Red spider mites and aphids are examples of agricultural pests which are very problematic to many farmers in Kenya and further Sub- Saharan Africa. Efforts research wise are focused on the bioactivity, application methods, ... -
ISOLATION AND CHARACTERIZATION OF ACTIVE ANTIHYPERGLYCEMIC COMPONENT OF URTICA DIOICA LEAVES
(2016-05-20)Urtica dioica (U.dioica) commonly known as the stinging nettle is a herbaceous perennial plant belonging to the plant family Urticaceae. The aqueous extract of the plant have been shown to have antihyperglycemic activity ... -
DETERMINATION OF DIFFUSION COEFFICIENTS OF FOOD
(2016-05-20)Food additives play a vital role in today’s bountiful and nutritious food supply and their transportation in water is a diffusion process governed by Fickian diffusion laws. The study looks into the rate of diffusion of ... -
EFFECTIVENESS OF ACID TOLERANT INDIGENOUS RHIZOBIA AND LIME APPLICATION ON THE PERFORMANCE OF GROUNDNUT IN WESTERN KENYA.
(2016-05-20)Rhizobia inhabit root nodules where they reduce atmospheric nitrogen into a form available to plants. High productivity of grain legumes depends on effective symbiotic nitrogen fixation through successful legume inoculation ... -
ANTIMICROBIAL PROPERTIES AND PHYTOCHEMICAL COMPOSITION OF SOLANUM NIGRUM COMPLEX (BLACK NIGHT SHADE)
(2016-05-20)Solanum nigrum complex is a group of plants used as indigenous vegetables and also a source of traditional medicine in Kenya and other parts of the world. There are many species in the S. nigrum complex which include Solanum ... -
VEGETATION COMPOSITION, REGENERATION AND ANTHROPOGENIC DISTURBANCES IN WESTERN MAU FOREST, KENYA
(2016-05-20)Western Mau Forest is located at an altitude of 2,000 and 2,600 m and between the latitudes 00 10’ 46” S to 00 17’ 42” S and longitudes of 350 27’ 05” E to 350 39’ 42” E. It was originally 22,712 ha, but has been subjected ... -
AN INVESTIGATION OF EFFECTS OF BOUNDARY LAYER THICKNESS
(2016-05-20)The motion of fluid substances can be described by the Navier-Stokes equations. These equations arise from the application of Newton's second Law of motion to a fluid. In this study, Navier-Stokes equations in two ... -
HEAVY METALS, PHOSPHATES AND NITRATES LEVELS IN VEGETABLES: A CASE STUDY OF KITALE MUNICIPALITY, TRANS-NZOIA COUNTY, KENYA
(2016-05-20)Effluents released from sewage treatment plant contain toxic metal pollutants whose uptake by vegetables is governed by their availability and concentration in the soil. Therefore such vegetables may accumulate pollutants ... -
SYNTHESIS OF A PHENYLETHYLTHIOUREA DERIVATIVE AS A POTENTIAL NON-NUCLEOSIDE INHIBITOR OF HIV-1 REVERSE TRANSCRIPTASE
(2016-05-20)The emergence of resistant strains of HIV-1 towards existing drugs has prompted a search for new compounds with good antiviral activity and favourable toxicological profile. This work reports the synthesis of a PETT ... -
SYNTHESIS OF A PHENYLETHYLTHIOUREA DERIVATIVE AS A POTENTIAL NON-NUCLEOSIDE INHIBITOR OF HIV-1 REVERSE TRANSCRIPTASE
(2016-05-20)The emergence of resistant strains of HIV-1 towards existing drugs has prompted a search for new compounds with good antiviral activity and favourable toxicological profile. This work reports the synthesis of a PETT ...
