College of Natural Sciences (CoNAS): Recent submissions
Now showing items 121-140 of 334
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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, ... -
Safety evaluation of oral toxicity of potential anticancer agents: An acute and sub-chronic toxicity studies of combinations of Carica papaya Linn, Vernonia Amygdalina Delile and dihydroartemisinin.
(Ibadan biochemical communications group, 2021)The increase in cancer prevalence rate worldwide is a public health concern. Studies have recognized the use of phytomedicines in cancer treatment but their safety data is deficient. Vernonia amygdalina Delile (VA), ... -
Evaluation of the adverse effects of Dracaena steudneri Engl. stem bark aqueous extract in Wistar rats
(Academic Journals, 2021)Safety of medicinal plants/products is one of the major areas that require more attention because of the high rate at which consumers use medicinal plants/products due to their availability and accessibility. Dracaena ... -
Analgesic, anti-inflammatory and oxytocic activities of Dracaena steudneri Engl. stem bark aqueous extract in Wistar rats
(Academic journals, 2022)Dracaena steudneri Engl. (Dracaenaceae) is a medicinal plant that is used in labour by traditional birth attendants to induce labour, relieve pain and treat various diseases; albeit no documentation. This study determined ... -
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 ... -
Occurence and characterisation of root rot fungi infecting common bean (Phaseolus vulgaris L.) in Rubirizi District, South-Western Uganda.
(Makerere University., 2022-06-22)Beans are intensively grown in south western Uganda and are the second most important source of dietary proteins. Of the production constraints, Bean root rot is the most serious disease, causing total (100%) field loses ... -
Phytochemical analysis of polyphenols in leaf extract from Vernonia amygdalina. Delile plant growing in Uganda
(MDPI, 2022)Due to the presence of phytochemicals, plants have been known to be used in the treatment and management of various diseases. Vernonia amygdalina, belonging to the Asteraceae family, is a plant known for its many applications ... -
Plant regeneration at varying levels of ecosystem recovery: a case of Namulonge wetland system, Uganda
(Makerere University, 2022-06-24)Namulonge wetland system has been exposed to various land use changes. This study, supported by the GlobE wetlands of East Africa, was conducted at National Crop Resource Research Institute (NCRRI), Namulonge, in a modified ... -
Y-chromosome genotyping of the Balamogi, the Bagwere and the Banyole of Eastern Uganda
(Makerere University, 2022-06-21)Uganda is an important place to study the genetic diversity of humans due to the existence of ethnically, linguistically and geographically diverse contemporary populations. Populations in Uganda speak languages that belong ... -
Physicochemical and nutritional profiles of stingless bee (Meliponula bocandei) products from the Western highlands and Lake Victoria crescent agro-ecological zones
(Makerere University, 2022-06-07)Several communities in tropical and subtropical regions of the world have exploited stingless bee products for centuries. In other countries, the physicochemical and nutritional properties of these products have been ... -
Utilizing heated pollen and Androgenesis pathways for the production of haploids in cassava
(Makerere University, 2022-05-16)It takes no less than eight years to develop a new variety because the cassava breeding cycle is long, and its multiplication rate slow. Cassava breeding is based on the use of heterozygous progenitors, which has important ...