College of Natural Sciences (CoNAS): Recent submissions
Now showing items 81-100 of 328
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Assemblages of Hawkmoths (Sphingidae: Lepidoptera) in Kalinzu Forest South-western Uganda
(Makerere University., 2023-02-01)Intensification in anthropogenic activities has significantly lowered habitat quality, accelerated habitat loss and habitat isolation within forest ecosystems. However, there is less documentation on recovery of communities ... -
Antiplasmodial activities of extracts and pure compounds from Securidaca Longipedunclata Fresen (Polygalaceae)
(Makerere University, 2023-01-30)Introduction: Malaria is the most significant parasitic disease globally especially in Sub-Saharan Africa. The disease kills a child every two minutes. This is coupled with increased malaria parasites resistance to the ... -
Characterisation of optical parameters of zink sulphide and silver metal film coated on glass at different deposition angles
(Makerere University, 2023-02-01)The greatest challenge of smart window technologies is the regulation of heat accumulation indoors through fenestration and at the same time have a good visibility. Therefore, the spectral characteristics of thermally ... -
Development and assessment of a cooking unit integrated with solar thermal energy storage system
(Makerere University, 2022-12-07)The thermal performance of a newly developed cooking unit integrated with a thermal energy storage (TES) system suitable for solar thermal applications has been tested and analysed. The experimental set-up consisted of ... -
Optical and electrical properties of thermally deposited aluminium thin films
(Makerere University, 2023-01)Thin film coatings can be applied to windows in buildings for solar control and energy-saving purposes. By regulating the solar radiation entering through windows in spectrally selective manner, it is possible to save ... -
Utilization of fungal and bacterial endophytes for the management of the banana nematode Radopholus similis in East African Highland Bananas.
(Makerere University., 2023-01-20)East African Highland bananas (EAHB) (Musa spp., AAA-EA) are a staple food to many smallholder farmers in Uganda. Production is constrained by plant parasitic nematodes (PPN) with the burrowing nematode, Radopholus similis ... -
Phytochemical screening, in vivo antibacterial and antioxidant activities of roots of Euclea mayottensis H. perrier and fruits of Tambourissa comorensis D.H. Lorence
(Makerere University., 2023-01-20)There is increased antimicrobial drug resistance as common antibiotics are no longer effective. In Africa and Comoros in particular the use of medicinal plants as a remedy for the common bacterial infections is on the rise. ... -
A Solution to an Exterior Bernoulli Free Boundary problem using the Constitutive Error Cost Functional.
(Makerere University., 2023-01-20)A shape optimisation problem involves finding the minimum of the cost functional over an admissible domain. the cost functional is stated in form of an integral over a domain or its boundary, where the integrand depends ... -
Gamma-ray spectrometric analysis of radionuclides in chicken feeds, meat and bones from selected suppliers in Kampala, Uganda
(Makerere University, 2023-01-13)Demand for organic and inorganic chicken feeds that enhance faster growth to supply the meat market in Kampala is heightening every year. Competition in chicken business raises concerns on chicken feeds and meat quality ... -
Mathematical Modelling of Harvesting of a Stage and Size - Structured Fish Population: the Case of African Catfish and Nile Tilapia
(Makerere University, 2023-01)Over fishing has a great impact on the fish population because it results into decrease of fish stock and extinction of fish species. Consumer-resource systems with harvesting, in which African catfish (Glarias~gariepinus) ... -
Structure elucidation of compounds isolated from the stem bark of Euclea latidens used in treatment of dental caries
(Makerere University, 2023-01-12)Dental caries has remained a global threat despite the numerous antibacterial agents. The high global prevalence of 2.4 billion people reported is due to resistance against the antibiotics by the dental caries bacteria. ... -
Radioactivity Levels of 226Ra, 232Th and 40K in Limestone, Clay, Sand, Magnesium-oxide, Pozzolana, and their Cement Products
(Makerere University, 2023-01-03)This study was to determine the radioactivity levels of 226Ra, 232Th and 40K in limestone, sand, clay, magnesium-oxide, pozzolana and their cement products. Raw material samples were collected from areas of Western, Eastern ... -
The dual of local cohomology modules
(Makerere University, 2022-12-07)Let R be a Noetherian commutative local ring with unity, a be an ideal of R and M be an R-module. Local duality is one way of studying local cohomology modules by obtaining their dual modules. When M is a finitely generated ... -
Development of immobilized natural adsorbent filters for one-pot removal of selected pharmaceuticals and metal ions from water
(Makerere University, 2023-01-09)In this work, a xerogel immobilized natural adsorbent filter system was developed for the removal of selected pharmaceuticals and toxic heavy metals from water. The filter system comprises of activated carbon from banana ... -
Bio-oil production from water hyacinth by hydrothermal liquefaction process using iron oxide-based nanocomposites as catalysts
(Makerere University, 2023-01-09)The iron oxide nanocatalyst and iron oxide/nickel oxide nanocomposite were synthesized by the co-precipitation method and used in the hydrothermal liquefaction (HTL) of water hyacinth. The composition and structural ... -
Synthesis and characterization of silver/calcium Oxideactivated carbon Nano-composite for the removal of phosphate from wastewater
(Makerere University, 2022-12)Excessive phosphate concentration in wastewater discharged into the environment is the main cause of eutrophication in aquatic environments. Adsorption methods are widely used for removing phosphate from wastewater because ... -
On the Wavelet Analysis of Square Integrable Functions.
(Makerere University., 2022-12-12)In this study, we derive the conditions under which an arbitrary L^2(R) function can be expanded in terms of the wavelet basis. This is done by rst deriving the conditions under which an arbitrary scaling function and the ... -
An Automatic Electronic Photovoltaic Heating System for Charging Thermal Energy Storage Tank
(2023-01-03)Power generated by Photovoltaic modules can be directly used for heating. However, due to the intermittent nature of solar irradiance, such a PV heating system requires a controller which can automatically select the ... -
Geometric mean-reverting approach to modelling stock prices at the Uganda securities exchange:case of Stanbic bank Uganda
(Makerere University, 2022-12-21)An accurate stock price prediction brings advantages to investors and benefits the stakeholders directly since it provides enough information to make better investment decisions towards the future. This dissertation aims ... -
Bio-efficacy of insecticides used for vector control in Busia and Tororo districts, Eastern Uganda
(Makerere University, 2022-02-14)High malaria transmission rates in Sub-Saharan Africa (SSA) are attributed to the continuous presence of effective and competent Plasmodium vectors, Anopheles gambiae complex and the Anopheles funestus group. These vectors ...