Browsing PhD. Theses and Dissertations by Title
Now showing items 8-27 of 42
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Design, Fabrication and Characterization of an appropriate Solar Thermal Electricity Generating System
(Jomo Kenyatta University of Agriculture and Technology, 2015-07)The sun provides an abundant and clean source of energy. However the supply of this energy is periodic following yearly and diurnal cycles, intermittent, unpredictable and it is diffused. Its density is low compared to the ... -
Determination of Factors Influencing the Efficiency of Legume Green Manures for Maize Production in Embu, Kenya
(Kenyatta University, 2008-05)Land productivity in the central highlands of Kenya is mainly constrained by low and declining soil fertility. In the maize-based farming systems, continuous cultivation without adequate soil fertility enhancement measures ... -
The discourse of televised political news interviews and ethnic polarization in Kenya
(UoeM, 2017)Political interviews have been used as genres for dissemination of political information. The way they are presented is a subject of concern as they are thought to be causing division among the Kenyan audience along political ... -
Discursive Construction of Masculine Identities in Newspapers Pullout Magazines in Kenya
(Laikipia University., 2014-10)The study analyzed the discursive constructions of masculine identities in newspapers’ pullout magazines in Kenya. It examined if there was a disconnect between the way Kenya’s mainstream newspapers’ pullout magazines ... -
Diversification Strategies, Corporate Cannibalisation, Environmental Munificence and Financial Performance of Insurance Companies in Kenya
(UoEm, 2023-09-15)Insurance industry in Kenya is an important contributor to the economic growth of the country. Provision of financial security, extension of financial services, guaranteeing of future continuity of businesses are just part ... -
Does Inquiry-Based Learning Approach In Chemistry Practical Lessons Affect Students’ Nzomo Attitudes And Self-Efficacy In Chemistry? A Case Of Meru South Sub-County,Kenya
(UoEm, 2023-05)xiv ABSTRACT Chemistry is a crucial subject for a country like Kenya that seeks to be industrialized by the year 2030. Even though the subject is important, performance in the subject has been declining consistently in ... -
Effect of Government Regulations on Factors Hindering Financing of Small Scale Water Investments in Kenya
(Jomo Kenyatta University of Agriculture and Technology, 2015)In Kenya, most water utilities have been publicly owned and managed. These utility firms have thus been getting financial support from the government in form of subsidies in addition to the revenue they ... -
Effects of Irrigation and Nitrogen Fertilizer Levels on Water and Nitrogen Use Efficiency and Yield of Drought Tolerant Hybrid Maize (Zea mays L.) in Embu County, Kenya
(2019)Food grain shortage in Kenya is attributed to low rainfall and poor distribution in maize growing areas particularly as well as low soil fertility associated mainly with nitrogen deficiency. Use of irrigation water and ... -
Effects of Selected Media on Novel Portland Pozzolana Cement
(Kenyatta University, 2009-02)Cement is subject to degradation by aggressive media found in the environment. Durability tests are therefore necessary for any cementitious material in a given environment. The work reported in this thesis involved the ... -
Empirical and model derived respiration responses to climate in different soils of an arid South African ecosystem
(The University of the Western Cape, 2009)This study examined the magnitude of soil CO2 efflux in an arid South African ecosystem, the flux responses as well as those of key limiting nutrients to soil temperature increases and moisture reductions consistent with ... -
Epidemiology of Foot and Mouth Disease, Brucellosis and Leptospirosis at the Livestock Wildlife Interface Area in Maasai Mara, Kenya
(University of Embu, 2020-10)Intact ecosystems can regulate the transmission of infectious diseases by maintaining the diversity of species in equilibrium. However, human driven land use change is a major driver of environmental change and can affect ... -
An Evaluation of Effects of Exchange Rate Volatility on Kenya’s French Bean Exports
(University of Nairobi, 2015-04)During the period after the adoption of a floating exchange rate regime in Kenya, there has been substantial volatility produced by the regime. In spite of the considerable foreign exchange contribution of Kenya’s ... -
An Evaluation of the Effect of Land Fragmentation and Agro-Ecological Zones on Food Security and Farm Efficiency: The Case of Embu County in Kenya
(University of Nairobi, 2017-12)Declining size of the farm holdings in most high agricultural potential areas as a result of continuous land fragmentation is currently a major policy concern in Kenya. The purpose of this study was to evaluate the effect ... -
Extraction of Copper Using Chicken Dung and Concentration of Titanium Using Biomass from Ores in Maragwa Location, Tharaka Nithi County
(University of Embu, 2020-02)Mineral data shows several deposits of copper and titanium minerals in Kenya yet the country continues to import copper and titanium products. In some regions of Tharaka Nithi County, occurs ores that are known to contain ... -
Formulation and Characterization of Prototype Particleboards using selected Crop Residue and Starch from Cassava Peels as a Binder
(University of Embu, 2020-11)Particleboards are formulated from lignocellulose material bound with adhesives. Conventional lignocellulose material used is wood particles and adhesive is formaldehyde-based resin. Due to reduction of tree cover, wood ... -
Functional Diversity and Ecological Role Of Nematodes in Pigeon Pea And Maize-Pigeon Pea Agro-Ecosystems
(UoEm, 2023-08)Kenya relies heavily on pigeon pea (Cajanus cajan L.) and maize (Zea mays L.) as essential food crops, widely grown by small-holder farmers for food, feed, and income. These crops face significant production challenges due ... -
Genetic Diversity of Alternaria solani and Phytophthora infestans isolates and their Management using crude Extracts and Essential Oils of Selected Plants in Kenya
(University of Embu, 2021-07)Kenya is rated 6 in Africa with an annual overall production of 397,007 tons of tomato fruit. Tomato production in Kenya is constrained by many biotic and abiotic factors and among them, diseases such as early and late ... -
A Hybrid Of Capsule and Dense Neural Networks with backward Regression model for Coffee leaf disease identification
(UoEm, 2023-04)Diseases that affect coffee have serious repercussions for policymakers, seed industries, farmers, and consumers. Over the years, farmers have had to travel long distances searching for pathologists to check their coffee ... -
Incidence and Extent of Substance Abuse among Secondary School Students in Nairobi Province, Kenya: Implications for Specialized Intervention
(Kenyatta University, 2010-10)Substance abuse has become a major challenge in secondary schools in Kenya. A study carried out in Kenya observed that 20% of adolescents aged between 12 and 22 years smoke cigarettes, 9% smoke bhang while 23% drink ... -
Influence of Macro Environment on the Performance of Business Process Outsourcing Companies in Kenya
(University of Embu, 2021-09)Business Process Outsourcing is one of the six priority sectors in the economic pillar of the Kenya Vision 2030. The vision envisages that the country becomes the top business process outsourcing destination in Africa. ...