Doctor of Philosophy Theses and Dissertations(PHD): Recent submissions
Now showing items 1-20 of 1218
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Tree Cover Perspectives and Climate Change Resilience in the Drylands of Matungulu Sub-County, Machakos County, Kenya
(Kenyatta University, 2020-02)Rapid population growth, increasing demand for land, over-exploitation and the degradation of local natural resources have led to serious socio-ecological challenges in Matungulu Sub-county. This situation, compounded ... -
Oil and Gas Exploration and Sustainable Environmental Management in Oil Block 13t South Lokichar Basin, Turkana County, Kenya
(Kenyatta University, 2020-03)Commercial oil and gas was discovered in Kenya in 2012. Few academic studies have been done on the effects of the mentioned discovery to the environment.The oil and gas resources are expected to transform the economic ... -
Modelling the Spatial Relationship between Built-Up Volumes and Surface Urban Heat Islands in Upper Hill, Nairobi City County, Kenya
(Kenyatta University, 2020-07)Urban heat island refers to the thermal temperature differences between rural and urban areas. The factor that has been attributed to this phenomenon is urbanization, where natural land cover is replaced by concrete and ... -
Environmental Sustainability in Informal Settlement Upgrading Projects in Nairobi, Mombasa and Kisumu Cities in Kenya
(Kenyatta University, 2020-09)The phenomenal growth of urban centres in developing countries makes cities important sites for engaging with environmental issues. The prevalence of informal settlements in cities and its implication on environmental ... -
Quantifying Greenhouse Gas Emissions and Carbon Stocks in Maize-Soybean Cropping Systems in Siaya County, Kenya
(Kenyatta University, 2020-11)As climate change continues to threaten ecosystems’ functions, agriculture remains one of the major source of greenhouse gas (GHG) emissions that are responsible for global warming. The major GHG in agriculture are; carbon ... -
Effects of Value Added Tax Reforms on Household Welfare and Collection Efficiency and the Determinants of its Compliance Gap in Kenya
(Kenyatta University, 2020-01)The study evaluated the Value Added Tax reform process in Kenya, and established its effect on welfare of households and collection efficiency of Value Added Tax. In addition, the study estimated the Value Added Tax gap ... -
Effects of Prudential Capital Regulations on Systemic Risk and Financial Stability in the Banking Sector in Kenya
(Kenyatta University, 2020-02)The prudential regulation's main objective is to mitigate financial instability's threat and macroeconomic costs. In the last decade (2007 to 2018), the banking sector in Kenya has expanded rapidly, making some banks operate ... -
Effect of the Size of the Informal Sector on Economic Growth, Total Factor Productivity and Poverty Alleviation in Kenya
(Kenyatta University, 2020)The Kenyan economy is predominantly informal. The informal sector employed 132,100 workers in 1974; and 13,442,200 workers in 2016, which translate to 19 percent and 84 percent of the total work force in the respective ... -
Effect of Exchange Rate Misalignment on Bilateral Trade between Kenya and European Union
(Kenyatta University, 2020)The exchange rate is an important variable in international trade due to the expectations that trade reacts to its movements and therefore determines a country’s international competitiveness. Prudent management of trade ... -
The Impact of Climatic Variability and Malaria Control Interventions on Malaria Parasite Prevalence and Vector Abundance in Western Kenya
(Kenyatta University, 2020-11)The World Health Organization estimated annual global malaria mortality to be at 405,000 deaths in 2018 making malaria one of the most important diseases in the world. In Kenya, malaria control measures have been put up, ... -
Techniques of Assessing Students’ Vocal Music Performance by Selected Universities in Kenya: Investigating Conformity with Procedural Evaluation Frameworks
(Kenyatta University, 2020-06)Vocal music performance occupies a dominant position in the musical landscape of Kenya yet scholars have had numerous debates as to how music should be assessed and evaluated. Instructional refinement and related matters ... -
Anthropogenic Impacts of Land Use and Land Cover Changes on Mai Mahiu Ecosystem, Nakuru County, Kenya
(Kenyatta University, 2020)Land-use changes are the main cause of human and environmental problems especially in many developing countries in Africa and Asia. Study was conducted in Mai Mahiu, Nakuru County, Kenya whose aim was to assess the impacts ... -
Analysis of Tax Revenue Productivity for Selected Countries in the East African Community
(Kenyatta University, 2020)The East African Community member states face challenges in mobilizing tax revenues to the required level which is suitable for economic growth enhancement and attaining fiscal sustainability. Tax reforms have been ... -
Synthesis, Characterization, Bioassay and Density Functional Theory Studies of Cationic Iron Half Sandwich Complexes of Selected Heterofunctional Active Pharmaceutical Agents
(Kenyatta University, 2020-02)The molecular modification of purely organic drugs by the incorporation of a metal atom is an active area of research. However, there is paucity of data in the use of half sandwich organometallic fragments and in particular ... -
Synthesis of (R)-1-Methyl-4-(1-Methylethenyl) Cyclohexene Multifunctional Derivatives and their Effects on Jatropha Curcas and Algae Biofuel Blends
(Kenyatta University, 2020-10)There is a growing increase in biofuel consumption around the world. Currently there is a desire to enhance biodiesel and biodiesel blends properties by use of multifunctional additives. This project sought to evaluate the ... -
First Principles Study of Structural, Electronic and Mechanical Properties of Lanthanum Fluoride and Lanthanum Doped Barium Fluoride
(Kenyatta University, 2020)Lanthanum Fluoride (LaF3) has several applications for instance, in electrodes manufacture, fluorescent lamps and fiber optic devices due to its high heat capacity. Barium fluoride (BaF2) is an alkaline-earth element ... -
Effect of Spatial Dielectric Function on the Total Energy of Cubic Quantum Dots and Frequency Dependent Dielectric Functions in Binary Semi-Conductors
(Kenyatta University, 2020)Spatial and frequency dependent response functions of medium-direct band gap binary semiconductors were studied at both nanoscale and in bulk form using ab initio method. To understand why the total energy and the band ... -
Digestibility, Growth and Economic Performance of Nile Tilapia (Oreochromis Niloticus) Fed on a Mixture of Plant Protein Diets in Cages
(Kenyatta University, 2020)Fish feed is one of the critical components in aquaculture production and accounts for over 60% of total operational costs with protein component being the most expensive ingredient. Traditionally, fishmeal (FM) has been ... -
Diagnosis and Epidemiology of Zoonotic Nontuberculous Mycobacteria among Dromedary Camels and Household Members in Samburu County, Kenya
(Kenyatta University, 2020)Zoonotic nontuberculous Mycobacteria (NTM) cross infect a wide range of domestic animals, wildlife and man causing various diseases. Despite the public health implications associated with mycobacterial infection and the ... -
Characterization and Control of Pathogenic Parasites in Nile Tilapia (Oreochromis Niloticus Linnaeus 1758) in Fish-farming Systems in Bungoma County, Kenya
(Kenyatta University, 2020)In Kenya, fish farming has been expanding in recent years, with Government support through financial and input subsidies to small scale farmers. The sub sector generates a variety of benefits such as food and nutrition ...
