College of Biological and Physical Sciences (CBPS): Recent submissions
Now showing items 1-20 of 24
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Bühlmann Credibility Approach to Systematic Mortality Risk Modeling for Sub-saharan Africa Populations (Kenya)
(University of Nairobi, 2022)The classical mortality models such as the Cairns-Blake-Dowd (CBD), Lee-Carter (LC), Linear Regression (LR) models are used to model Systematic Mortality Risk (SMR) for many developed countries populations for actuarial ... -
Effect Of Deposition Temperature On The optical Properties Of Iron-Doped Cadmium Stannate Thin Films Deposited By Spray Pyrolysis
(University of Nairobi, 2019)Spray Pyrolysis Technique (SPT) was used to deposit thin films (TFs) of cadmium stannate, doped with iron (Fe) for the first time. The precursor solutions that were used wereprepared at a concentration of 0.1M, doped ... -
Multispectrum analysis of the ν4 band of CH3CN: Positions, intensities, self- and N2-broadening, and pressure-induced shifts
(University of Nairobi, 2008)A multispectrum nonlinear least-squares fitting technique was applied to measure accurate zero-pressure line center positions, Lorentz self- and nitrogen (N2)-broadened half-width coefficients, and self- and N2-pressure-induced ... -
Upper limits for undetected trace species in the stratosphere of Titan
(University of Nairobi, 2010)In this paper we describe the first quantitative search for several molecules in Titan's stratosphere in Cassini CIRS infrared spectra. These are: ammonia (NH3), methanol (CH3OH), formaldehyde (H2CO), and acetonitrile ... -
Assessment and mapping of the high background radiation anomaly associated with laterite utilization in the south coastal region of Kenya
(University of Nairobi, 2019)Laterite is commonly used in Kenya and other tropical countries as an aggregate material for road paving. However, the use and relocation of laterite and other geological materials from high background radiation areas ... -
Influence of Pore Size on the Optical and Electrical Properties of Screen Printed Thin Films
(University of Nairobi, 2016)Influence of pore size on the optical and electrical properties of TiO2 thin films was studied. TiO2 thin films with different weight percentages (wt%) of carbon black were deposited by screen printing method on fluorine ... -
Electronic Properties of Catechol Adsorbed on Rutile TiO2 and SnO2 (110) Surfaces: A Density Functional Theory Study
(University of Nairobi, 2016)The incorporation of organic molecules such as catechol onto TiO2 substrate to enhance TiO2 photocatalytic activity has led to improved Dye Sensitized Solar Cells (DSSCs) efficiency. Nonetheless, it still remains low for ... -
Compositional analysis and optical properties of Co doped TiO2 thin films fabricated by spray pyrolysis method for dielectric and photocatalytic applications
(University of Nairobi, 2017)Cobalt doped TiO2 thin films (CTF) deposited by spray pyrolysis has been studied. The compositional analysis has been done using RBS method, while optical spectroscopy has been done by measuring the transmittance and ... -
ANSOLE Mini-Symposium in Kenya (AMSK 2013) 9. May 2013, Nairobi Kenya
(University of Nairobi, 2013)Energy is the main driver in any economy because almost everything is directly or indirectly related to energy. Energy determines to a large extend the prices of goods, commodities , services and hence the cost of living ... -
On Unitary Quasi-equivalence of Operators
(University of Nairobi, 2020)In this paper we investigate unitary quasi-equivalence of operators in Hilbert spaces. We characterize operators that are unitarily quasi-equivalent. We also investigate equivalence relations closely related to unitary ... -
Transgenic Expression of Dsrna Targeting the Pentalonia Nigronervosa Acetylcholinesterase Gene in Banana and Plantain Reduces Aphid Populations
(University of Nairobi, 2021)The banana aphid, Pentalonia nigronervosa, is the sole insect vector of banana bunchy top virus (BBTV), the causal agent of banana bunchy top disease. The aphid acquires and transmits BBTV while feeding on infected banana ... -
The E-government Paradox: Is It Real and How Can It Be Resolved?
(University of Nairobi, 2016)The development and implementation of e-government has been viewed as an opportunity to bring the much-desired reforms in public administration. There are several studies that have been conducted in the field of e-government ... -
Enhancing Access and Use of Climate Information Through ICTs
(University of Nairobi, 2019)Although the role of ICTs in improving human life in Kenya is acknowledged widely, the focus of much of ICT-related developments has been on human experiences at the level of disease and needs for communication and mobility. ... -
Evaluating the Effects of Formulated Nano-npk Slow Release Fertilizer Composite on the Performance and Yield of Maize, Kale and Capsicum
(University of Nairobi, 2019)Effect of formulated slow release NPK fertilizer [cellulose-graft-poly(acrylamide)/nanohydroxyapatite/soluble fertilizer] composite (SRF) on the performance and yield of maize, kale and capsicum was evaluated in a greenhouse ... -
The Role of Organizing Vision in Cloud Computing Adoption by Organizations in Kenya
(University of Nairobi, 2017)Cloud computing as an emerging IT innovation has attracted a growing number of studies in recent years. Key amongst these studies is the adoption of cloud computing. Most studies investigating cloud computing adoption have ... -
Cloud Computing Adoption by Firms in Kenya: the Role of Institutional Forces
(University of Nairobi, 2019)While there is substantial literature on the adoption of IT innovations based on utility computing, there is a dearth of studies on cloud computing adoption by business organizations. Given that cloud computing adoption ... -
Blockchain as an Emerging Financial Trust Model
(University of Nairobi, 2019)Blockchain is being touted as a new technological genie being unleashed from its bottle. Through Blockchain, the epicenter of trust is about to diffuse, it is said. Blockchain is the technology behind cryptocurrencies such ... -
Institutional Pressures and Cloud Computing Adoption: the Moderating Effect of Organizational Mindfulness
(University of Nairobi, 2019)The literature on cloud computing adoption has grown substantially. Most of the focus on the antecedents of cloud computing adoption. While some of these studies have investigated the relationship between institutional ... -
Effect of Hexanal as a Post-harvest Treatment to Extend the Shelf-life of Banana Fruits (Musa acuminata var. Sweet Banana) in Kenya
(University of Nairobi, 2019)The short shelf-life of fruits in the tropics continues to be a pressing problem for farmers and other value chain actors. Hexanal is a naturally occurring compound that has received attention as a novel postharvest ... -
Variation in Morphological and Agronomic Traits of Selected African Eggplant Accessions
(University of Nairobi, 2020)The African eggplant is an important indigenous vegetable crop in Africa. However, there is limited information on variations among the wild species that could potentially act as a source for crop improvement. A study ...
