Faculty of Science & Technology (FST): Recent submissions
Now showing items 21-40 of 4076
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Chemical Degradation of Aflatoxin Contaminants in Maize as a Value Addition Strategy for Selected Counties in Kenya
(University of Nairobi, 2023)Aflatoxin contamination of maize, rice, groundnuts and wheat products is a common phenomenon in Kenya. This result to low nutritional value and huge economic loss of the crops produced. Additionally, consumption of aflatoxin ... -
On Equivalences of Some Classes of Operators in Hilbert Space
(University of Nairobi, 2023)The study explores various classes of operators introduced by different researchers, including n-normal, (n;m)-normal, k-quasi-(n;m)- normal, n-hyponormal, and (n;m)-hyponormal operators. Notably, the class of (n;m)-hyponormal ... -
Utilization of Concrete Waste in the Manufacture of Portland Pozzolana Cement
(University of Nairobi, 2023)Concrete waste is a subclass of construction and demolition waste composed of hydrated cement, coarse, and fine aggregates. It bears its origin from the construction and demolition of concrete structures. The purpose of ... -
Arbuscular Mycorrhiza Fungi Communities and Associated Common Tree Species in Chawia, Fururu and Ngangao Forest Fragments of the Taita Hills Forest, Kenya
(University of Nairobi, 2023)Arbuscular mycorrhizal fungi (AMF) are forms of symbionts that are ubiquitous in natural ecosystems. They are crucial in maintaining plant communities by enhancing uptake of nutrient and water as well as acting as major ... -
Isolation and Characterization of Novel Bacteriophages Against Multidrug Resistant Enterobacter Cloacae as Alternatives to Antibiotics
(University of Nairobi, 2022)Enterobacter cloacae is a significant nosocomial pathogen, causing bacteremia and infections of the lower respiratory tract, urinary tract, and intra-abdominal cavity. Acquisition of antibiotic resistant genes due to ... -
Characterization of an Alkaline Amylase and a Pectinase From Alkaliphilic Bacillus Halodurans Lbw 5117 Isolated From Lake Bogoria in Kenya and Demonstration of Their Applications in Bio-processing Woven Cotton
(University of Nairobi, 2023)De-sizing is a key textile wet processing step that is carried out on sized woven cotton to remove the starch impurity from cloth. On the other hand, scouring is done on de-sized fabrics to remove the natural pectins and ... -
Predict Spread of Infectious Diseases Across Regions via Transport Systems in Kenya Using Machine Learning Models: Case of Truck Crews and Bus Passenger Movement
(University of Nairobi, 2023)The recurrent outbreak of infectious diseases has led to a global health catastrophe with substantial socioeconomic interruptions, morbidity, and deaths. The coronavirus pandemic began in December 2019 in Wuhan, China, and ... -
Digitalization and Operational Performance of Insurance Firms in Kenya
(University of Nairobi, 2023)Digitalization has transformed firms and helped them attain higher levels of competitive advantage due to enhanced service delivery and reduction of waste and operation related costs. This study was aimed at determining ... -
Risk Factors and Molecular Epidemiology of Foot and Mouth Disease Virus and Other Animal Pathogens Infecting African Buffaloes, Cattle and Goats in Eastern Rwanda.
(University of Nairobi, 2023)Foot-and-Mouth Disease Virus (FMDV) is a positive-sense RNA virus of the family of the picornaviridæ causing the Foot-and-Mouth Disease (FMD). Although FMD is endemic in Rwanda, there are information gaps with regards to ... -
Invariant and Hyper-invariant Subspaces of Some Classes of Operators in Hilbert Spaces
(University of Nairobi, 2023)Direct sum decomposition of bounded linear operators gives a way of studying complicated operators since it decomposes these operators into parts whose structures are user friendly. It is known that some operators are ... -
Statistical Modelling of Unemployment Rate in Kenya Using Logistic Regression
(University of Nairobi, 2022)Unemployment is one of the challenges that has kept majority of governments around the world scratching their heads. It is one of the crisis of the modern world which keeps growing every day. It is mainly affected by the ... -
Assessment of the Spatial and Temporal Characteristics of Rainfall and Temperature Over Sudd Wetland in South Sudan in a Changing Climate
(University of Nairobi, 2023)The Sudd wetland is the world’s largest floodplain area and is essential for livelihoods, economic income, and water resources for communities living in the surrounding area. The communities in this area have been using ... -
Prevalence and Associated Risk Factors of Intestinal Parasitic Infections in Oloisukut Conservancy Community, Narok County, Kenya
(University of Nairobi, 2023)Globally, approximately 1.4 billion people suffer from soil-transmitted helminth infections with disease burden estimated at 5.3 million Disability Adjusted Life Years. Mass drug administration (MDA) remains the World ... -
Simulation of Tropical Cyclone Activities Over the Southwestern Indian Ocean
(University of Nairobi, 2023)The current study assessed the ability of the WRF-ARW model to forecast tropical cyclones over the Southwest Indian Ocean. The characteristics of tropical cyclones Jobo (2021), Kenneth (2019), and Idai (2019) were simulated ... -
Effects of Storage Conditions on Organic Acids Content and Sensory Properties of Cottage Cheese
(University of Nairobi, 2023)In order to conserve milk proteins and extend its shelf life, production of different cheeses is essential. Cottage cheese is grouped under soft cheeses. Soft cheeses are those cheeses that do not undergo maturation and ... -
Phytochemical Screening of Anti-inflammatory Compounds of the Stinging Nettle (Urtica Spp.)
(University of Nairobi, 2023)The stinging nettle is an alimurgic plant known for its anti-inflammatory ethnomedical importance. However, there are no studies that have attempted to identify the specific anti-inflammatory compounds within the extracts ... -
Assessment of the Efficiency of Drones in Surveillance and Control of Desert Locust, Schistocerca Gregaria
(University of Nairobi, 2022)Desert locust is a migratory pest with ability to change from solitary to gregarious phase in response to suitable ecological conditions and has been listed as one of the most destructive pest in the world. Current methods ... -
Assessment of Air Pollution and Prevalence Levels of Respiratory Diseases in Mukuru Informal Settlement in Nairobi City, Kenya
(University of Nairobi, 2023)Air pollution is one of the major environmental issues globally and is more pronounced in Sub-Saharan Africa (SSA). It is associated with adverse health effects, including respiratory diseases that have led to high morbidity ... -
Analysis of Metabolite Compounds in Ruminants and Their Contribution to Greenhouse Gas Emission
(University of Nairobi, 2023)Ruminants such as cattle, goats, sheep, and camels host highly diverse microbial communities in their rumens that ferment fibrous plant materials to produce energy. However, this fermentation process also generates significant ... -
Assessment of Water Quality of Ndakaini Dam in Murang’a County, Kenya
(University of Nairobi, 2022)This study assessed the water quality in Ndakaini dam located in Murang‘a County to ascertain the physiochemical, biological levels as well as some selected heavy metal concentrations. Assessment was also done on some ...