School of Physical Sciences (Phys-Sciences) Collections: Recent submissions
Now showing items 81-100 of 195
-
A mathematical model for dynamic stochastic asset liability management of Uganda's retirement benefit schemes
(Makerere University, 2022-11-03)models are well established decision tools for pension funds. They are commonly modelled as multi-stage, where a target terminal funding ratio is required, whereas at intermediate time periods, constraints on funding ratio ... -
Advances in carbon dioxide and propylene oxide copolymerization to form poly(propylene carbonate) over heterogeneous catalysts
(Elsevier, 2022)Chemical conversion of carbon dioxide (CO2) into value-added products is an attractive industrial process because it offers several economic and environmental advantages. This review presents advances and challenges in ... -
Sorption behaviour of Cypermethrin in selected Agricultural soils from Kakira, Lugazi and Kalangala farming areas in Uganda
(Makerere University, 2022-09-20)This study determined sorption kinetics and sorption equilibrium of cypermethrin on soil samples from sugar cane plantations in Kakira and Lugazi, and an oil palm tree growing area (Kalangala) in Uganda. Cypermethrin ... -
Loading and mobility of faecal and chemical contaminants to shallow groundwater: evidence from Lukaya Town, Central Uganda
(Makerere University, 2022-07)Shallow groundwater and on-site sanitation systems (OSS) feature centrally in most low income countries pursuing United Nations’ Sustainable Development Goal 6 (SDG 6) by 2030. This study assessed the shallow hydrogeological ... -
The Morphic property in modules and near-rings
(2022-08-22)We introduce and study weakly-morphic modules and their properties. In particular, we show that a finitely generated $\Bbb Z$-module is weakly-morphic if and only if it is finite. Hence a finitely generated Abelian ... -
Analysis of x-ray characteristics of narrow line Seyfert 1 Galaxies from nuclear spectroscopic telescope array data
(Makerere University, 2022)Narrow line Seyfert 1 (NLS1) galaxies are among the most variable active galactic nuclei (AGN) in the sky. Hard X-ray spectral and timing analysis of two of these galaxies, NGC 4051 and ARK 564, using NuSTAR data is ... -
Development of a thermal energy storage system Integrated with a cooking unit.
(Makerere University, 2022-07-19)The application of thermal energy storage technology in domestic cooking is a modern clean method where heat energy is stored in sensible or latent form. To extract the stored heat energy, specialized heat transfer ... -
Chemical structure and properties of anthocyanins from selected plant species from Uganda towards nutraceutical development
(Makerere University, 2022-05-13)Noncommunicable diseases pose national and global threat to public health and hence there is a need for appropriate intervention. Ingestion of nutraceuticals rich in anthocyanin phytochemicals is associated with reduced ... -
Interpretation of structural domains beneath Lake Edward- George basin, Southern Uganda from seismic data
(Makerere University, 2022-05-10)The recent oil and gas discoveries in Uganda particularly in the Albertine Graben have made the country one of the economically potential hydrocarbon provinces in the world thus causing an increased exploration of new areas ... -
Contributions to reduced rank modelling with applications to small area estimation
(Makerere University, 2021-08)This dissertation focuses on the problem of decomposing residuals in the GMANOVAMANOVA models with rank restrictions on parameters with applications in small area estimation. Firstly, residuals in the GMANOVA-MANOVA model ... -
The numerical range of linear relations and stability theorems
(Makerere University, 2022)The nullity, deficiency and index of a linear relation A from a linear space X to a linear space Y are defined as the dimension of the null space of A, the codimension of the range of A and the difference between the nullity ... -
Anti-bacterial activity and characterization of compounds from the leaf extract of Solenostemon Latifolius Hochst.ex benth.
(Makerere University, 2021-03)Infectious diseases have continuously been reported among the leading causes of death in the world. These include bacterial infections like tuberculosis and pneumonia. Several antibiotics have been used against these ... -
Anti-plasmodial activity and phytochemical analysis of leaf extract of Chenopodium Opulifolium Schrad. EX W.D.J. Koch and Ziz used in Uganda
(Makerere University, 2022-04-28)Malaria is a life-threatening disease caused by Plasmodium species. It had one of the highest motality and morbidity rates globally. with 229 million cases and 409,000 malaria death in 2019. In Uganda. Malaria has an ... -
Assessing Enrofloxacin use practices and residue levels of Enrofloxacin/Ciprofloxacin in breast and liver tissues of broiler chicken sold in selected markets in Kampala Capital City-Uganda
(Makerere University, 2022)Human exposure to veterinary drugs like fluoroquinolones occurs due to the presence of their residues in foods from animal sources in varying concentrations. The existence of antibiotics residues in foodstuff can pose great ... -
Investigating the characteristics of x-ray emission from Black Hole Binaries V4641 Sagittarii and V1033 Scorpii from Chandra Data
(Makerere University, 2022)X-ray emission processes in binary systems with early-type stars present a much more complex scenario, in which magnetic fields also play a key role. Despite a very wide range of phenomena that have been observed to occur ... -
Total electron content estimation in low latitude region of East Africa using NeQiuck2 model
(Makerere University, 2022-02)Modelling ionospheric total electron content (TEC) is important for geodesy, surveying, radio wave propagation, understanding of space weather dynamics and error correction in relation to Global Navigation Satellite Systems ... -
The occurrence of selected antibiotics in fish and benthic invertebrates (oligochaetes) from lake victoria, uganda
(Makerere University, 2022-04-14)The environmental occurrence of antibiotics has been a source of growing concern. The vast increase in production and usage of antibiotics is due to urbanization in areas of Lake Victoria basin. This has contributed to ... -
Solutions to a non-linear Diophantine equation of Pillai type
(Makerere University, 2022-04-07)Let $ \{F_n\}_{n\geq 0} $ be a sequence of Fibonacci numbers defined by $$ F_{0}=0, ~ F_{1}=1 ~~ \text{and} ~~ F_{n} = F_{n-1}+ F_{n-2} ~~ \text{for} ~~ n\geq 2. $$ In this research, we find all integers $c$ with at least ... -
Geological assessment of heavy metals' soil contamination by drilling waste discharge, Palogue Fields, Melut Basin, South Sudan
(Makerere University, 2022-03-31)Oil and gas operations produce wastes that are potentially toxic to the environment. The waste deposited into reserve pits can contaminate soil, groundwater, and surface water with heavy metals and other toxic substances ... -
Assessment of polycyclic aromatic hydrocarbons in the breast milk of mothers from Kampala capital city, Uganda
(Makerere University, 2022)The aim of this study was to investigate levels of polycyclic aromatic hydrocarbons (PAHs) in breast milk samples from healthy mothers who have lived in Kampala capital city (urban and industrialized area) for more thancarcin ...