College of Natural Sciences (CoNAS): Recent submissions
Now showing items 121-140 of 344
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Characterisation of resistant starch in selected banana cultivars
(Makerere University, 2022-12-14)In the green stage of the banana, starch accumulates most of which is resistant to degradation by amylases. The resistant starch is utilised in industry for development of nutraceuticals and as a functional food for ... -
Design of a water purification technology for the removal of Iron, Manganese, and Escherichia coli from ground water supply of Oruchinga Refugee Settlement Communities
(Makerere University, 2022)The present study investigated the levels of iron, manganese, and E. coli in the boreholes and shallow wells waters of the Oruchinga valley refugee camp. A multi-stage filter technology was designed for the removal of total ... -
Performance of selected natural dyes in dye sensitized solar cells
(Makerere University, 2022)Organic dyes have the potential for use as sensitizers in dye sensitized solar cells (DSSC). To this end, the performance of anthocyanins in DSSC has been investigated. Anthocyanins were extracted from fresh flowers of ... -
Substitution of Mukene (Rastreneobola argentea) Protein with Blue bottle fly (Calliphora vomitoria) protein in Nile tilapia (Oreochromis niloticus) diets
(Makerere University, 2022-10)A feeding trial was conducted at the Aquaculture Research and Development Center, in Kajjansi, Kampala, Uganda, between January 2017 and July 2017, to assess growth performance, feed utilization efficiency and hematology ... -
Anti-bacterial activity and characterisation of compounds of leaf extracts of Erlangea tomentosa S. Moore
(Makerere University, 2022-12-05)Bacterial infections such as pneumonia, lower respiratory tract infections, gastrointestinal disorders and skin infections are health burden to mankind. In Uganda, several medicinal plants are locally used to treat various ... -
Relevance and Factors Affecting Exchange of Plant Material and Data to Conservation
(Makerere University, 2022-11-28)The study examined the way African and European botanic institutions exchanged plant material and data. With the aim of assessing the relevance and factors affecting exchange of plant material and data to conservation ... -
Sorption kinetics and equilibria of a mixture of atrazine and diuron for selected tropical soils from Uganda
(Makerere University, 2022-11-28)The purpose of this study was to measure and model the sorption behavior of a mixture of pesticides in selected tropical soils, using atrazine and diuron as probe compounds. This information is important since it can be a ... -
Ethnobotany, Nutritional Value and Floristic Diversity of Wild Edible Plants in selected Central Forest Reserves of North Eastern Uganda
(Makerere University, 2022-10-17)Food insecurity and biodiversity loss are some of the global challenges articulated in the Sustainable Development Goals. In Uganda, the North Eastern region is arguably the most food insecure and less botanically surveyed ... -
Recovery of gold from electronic waste and soils using alpha-cyclodextrin derived from selected non-edible plants
(Makerere University, 2022-08)Gold recovery has been a central issue in a wide range of studies as a consequence of its high demand. The existing processes of recovering gold from different matrices are cyanide leaching and mercury amalgamation. These ... -
Determination and analysis of radiofrequency intensities from digital television broadcasting transmitters in Kampala metropolitan, Uganda
(Makerere University, 2022-04-05)Digital Terrestrial Television (DTTV) broadcasting transmitters use radiofrequency electromagnetic waves to broadcast television signals to television viewers in an area of interest. The strength of a received television ... -
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 ... -
Growth performance of Nile tilapia (Oreochromis niloticus) and Mirror carp (Cyprinus carpio) in Earthen ponds in Kabale and Kanungu Districts, Uganda
(Makerere University, 2022-10-21)Deterred investment in aquaculture in the districts of Kanungu and Kabale in Uganda has been attributed to unfounded beliefs that the temperature regime of the region does not favor desired growth of commercially farmed ... -
Involvement of Hydrogen Peroxide in recovery of banana plant from Xanthomonas Wilt disease
(Makerere University, 2022-08-16)Plants cannot avoid interaction with microbes, a fraction of which are pathogens. When a plant interacts with pathogenic microbes, the plant immune system is activated which triggers various defence responses. The responses ... -
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 ... -
The Anti-mycobacterial activity and safety profile of selected Crinum species in Northwestern Uganda
(Global Scientific Journals, 2021)Crinum species is a source of many bioactive molecules with both antimicrobial and anti-tumor properties. Chloroform, methanol and aqueous extracts of Crinum scabrum and Crinum macowanii bulbs and leaves were investigated ... -
Tentative qualitative and quantitative analysis of phenolic compounds in leaf extract from Carica papaya Linn. plant growing in Uganda
(Sciendo, 2021)Introduction: Carica papaya L. belongs to Caricaceae family. It is an evergreen tree or shrub with usually unbranched trunk. Previous studies on the methanolic leaf extract of this plant proved the antibacterial, ...