College of Natural Sciences (CoNAS): Recent submissions
Now showing items 221-240 of 344
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Sorption kinetics and degradation of chlorpyrifos in selected Uganda soils using mixed solvents
(Makerere University, 2019-10)The purpose of this study was to determine sorption kinetics using mixed solvents and degradation of Chlorpyrifos in tropical soils. The information is important to understand the behaviour and fate of Chlorpyrifos in ... -
Isolation and structural elucidation of antibacterial triterpenoids compounds from stem bark of Psorospermum Febrifugum (spach var. febrifugum)
(Makerere University, 2019-10)In this study, Psorospermum febrifugum stem bark was investigated for the antibacterial compounds present in its stem bark. The stem bark of Psorospermum febrifugum was collected in Mpigi District, Misindye hill in Buwungu ... -
The effects of PMD in buried and aerial single mode and polarization maintaining fibers and performance of direct and external modulation techniques at high speed data rate
(Makerere University, 2019-06)Optical fiber transmission is greatly affected by dispersion and in this study, we experimentally investigate angular displacement and speed of state of polarization in Single Mode Fibers (SMF) and Polarization Maintaining ... -
Utilisation of excess power generated by stand-alone solar photovoltaic system: a case study in Uganda
(Makerere University, 2019-11-25)Stand-alone solar PV systems are increasingly installed worldwide. For reliability, these systems are mostly oversized because of the intermittent nature of the source of energy and to cater for days of autonomy. During ... -
Morphometrics, growth and nutritional characterization of selected bivalves' species from Lake Victoria
(Makerere University, 2020-01-07)Fish is a major source of animal protein to most people in Uganda. However, production from capture fisheries has declined, mainly due to overfishing. Aquaculture, which is a viable option to meet the fish demand is ... -
Indoor radon concentrations in the dormitories of selected secondary schools in Otuke District, Northern Uganda
(Makerere University, 2019-12-05)Inhalation of radon and its progeny is the most significant source of natural radiation exposure to human population. Over 50 % of the natural background radiation comes from radon (222Rn). This study measured background ... -
Assessment of organochlorine pesticide residues in blood and placenta tissues of mothers living in Kanungu District and Kampala Capital City
(Makerere University, 2019-12)This study determined the levels of organochlorine pesticides in blood and placenta tissues of mothers from Kanungu District (N=26) and Kampala Capital City (KCC) (N=26). Samples for Kanungu District were collected from ... -
Source rock maturation and hydrocarbon generation evaluation using 3D Basin modelling
(Makerere University, 2019-11)The Semliki basin is located in the Albertine Graben which is part of the western arm of the East African Rift System (EARS). The basin demonstrated existence of a Petroleum System (Kiconco, 2005 and PEPD, 2012). Although ... -
Organochlorine pesticides in mothers' breast milk and risk assessment posed to nursing infants in Kanungu District and Kampala District
(Makerere University, 2019-10)This is the second study to report organochlorines (OCPs) in maternal breast milk in Uganda. The main aims of the present study were to determine concentrations of selected organochlorine pesticides in mothers’ breast milk ... -
Bio-physical suitability of saline crater lakes of Western Uganda for artemia production
(2019)Despite Artemia being the most widely used live feed for successful larval weaning and rearing, unreliable quality, not being readily available and expensive especially to small farmers hinders its use. This study explored ... -
On the classification of algebraic structures using quivers
(Makerere University, 2019-10-17)There are several ways used to classify algebraic structures, however in this project we classify path algebras of a connected quiver using Gabriel’s Theorem. We also show that the isomorphic classes of the indecomposable ... -
Pesticide residues in tomatoes and okra grown on the shores of Pece stream in Gulu Municipality, Northern Uganda
(2019-10-14)This study determined the levels of pesticide residues (cypermethrin, chlorpyrifos, aldrin, dieldrin, dicofol, α-endosulfan and β-endosulfan) in thirty vegetable samples (15 tomatoes and 15 okra) from the shores of Pece ... -
THE PERFORMANCE OF BLOOD DIRECT AFRICAN SWINE FEVER POLYMERASE CHAIN REACTION DIAGNOSTIC METHOD IN AN ENDEMIC SETTING
(2019)African swine fever (ASF) is a highly contagious viral swine disease. It’s lethality rates range between 90-100% in the affected animals. ASF outbreaks cause severe financial constraints for traders and farmers of swine. ... -
Detection and phylogenetic analysis of lumpy skin disease virus in cattle from selected districts in Uganda
(Makerere University, 2019-11-01)Lumpy skin disease (LSD) is a viral disease of significant economic impact for the cattle industry in Africa, including Uganda. It is caused by lumpy skin disease virus (LSDV), which belongs to the genus Capri poxvirus, ... -
Earthquake data files
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On Hulls of Semiprime Rings
(Makerere University, 2019-03-15)Suppose R is a unital ring with a ring of quotients. We construct an intermediate ring between R and the maximal right ring of quotients Q(R). The intermediate ring lies in a class of rings that generalizes the class of ... -
Delineation of petroleum plays in the Semliki Basin, Albertine Graben Western Uganda, from trap-type perspective
(Makerere University, 2019-10)Prospects evaluation in the Semliki basin demonstrated working petroleum system, but no viable targets have been discovered. This work was aimed to identify and group the prospective hydrocarbon resource areas of the basin ... -
In vitro assessment of antibacterial activity of selected plant ethanolic extracts against streptococcus pneumoniae
(Makerere University, 2015-08)Emergence of drug resistant isolates of Streptococcus pneumoniae threatens the usefulness of common antibiotics in treatment of acute otitis media and has partly contributed to the popularity of herbal medicine use. It is ... -
Polymorphisms of selected genes coding for antigens of theileria parva circulating in cattle in Southwestern Uganda
(Makerere University, 2015-10)Theileria parva is a tick-borne apicomplexan haemoprotozoan parasite of cattle which is by far the most pathogenic and economically significant Theileria species in Eastern, Central and Southern Africa. It causes an acute ... -
Atmospheric concentration of selected trace gases over Uganda
(Makerere University, 2019)The atmospheric concentration of the trace gases of CO2, CH4, NO2 and SO2 over Uganda was obtained at the stations of Makerere, Mukono, Lira, Tororo and Kasese. Data used in this study was retrieved from the Ozone ...