Electronic Theses and Dissertations: Recent submissions

Now showing items 1-20 of 157

Challenges related to beef-cattle pricing between a western block and a third world country

Ziwakaya, Paul Kundai (Botswana International University of Science and Technology (BIUST), 2021-06-06)

This study considers a business scenario involving three participants. The first participant, in this case the farmer sells the cattle to the second participant, in this case the Botswana Meat Commission (BMC) which, in ...
Setswana grammar checker for declarative sentences using LSTM-Recurrent Neural Network

Amon, Kesegofetse (Botswana International University of Science and Technology (BIUST), 2021-11-11)

This research is aimed at developing a Setswana grammar checker for Setswana declarative sentences using Long Short-Term Memory Recurrent neural networks (LSTM-RNNs). The research was motivated by the fact that Setswana ...
Investigation of the efficacy of a ZnO-starch nanocomposite packaging to prolong the shelf life of fragaria ananassa (strawberries)

Chitena, Lorraine (Botswana International University of Science and Technology (BIUST), 2022-03)

Nanomaterials have been used recently in food packaging as antibacterial coatings because of their desirable antibacterial and antifungal properties. The use of antimicrobial packaging is to deter the growth of ...
Investigating the cybersecurity threat landscape for Botswana

Mosimolodi, Sarefo Seth (Botswana International University of Science and Technology (BIUST), 2022-06-24)

Movement restrictions introduced by the coronavirus pandemic have incentivized the rollout of online services globally. Additionally, more employees were telecommuting throughout the pandemic and remote work has become ...
Baobab (adansonia digitata) seed as a source of biodiesel and protein hydrolysates: optimization of production processes and characterization of the products

Masisi, Keletso Gorata (Botswana International University of Science and Technology (BIUST), 2022-03)

Increase in global population places a demand on fuel and protein sources therefore putting a strain on their supply. The demand for fuel products is currently met by increased usage of fossil fuel, a nonrenewable ...
Dung beetles’ responses to changing environments; implications on ecosystem service delivery

Gotcha, Nonofo (Botswana International University of Science and Technology (BIUST), 2022-04)

Dung beetles are coprophagous insects belonging to the families Scarabaeidae and Geotrupidae. They are a very important insects’ group, acting as significant ecosystem engineers through dung burial, decomposition, ...
Mechanisms of population establishment in invasive South American tomato pinworm Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae)

Tarusikirwa, Vimbai Lisa (Botswana International University of Science and Technology (BIUST), 2021-11)

Global insect pest invasions have dramatically increased over the past decades, posing significant biosecurity threats to natural and managed ecosystems. As such, the mechanisms of spread and rapid establishment of ...
Diversity, distribution, tissue culture and value addition of Strychnos species in Central and North-East Districts of Botswana

Marenga, Willie (Botswana International University of Science and Technology (BIUST), 2021-12)

Strychnos is a widely varied genus from the Loganiaceae family with over 200 species identified worldwide. Most of these species are drought tolerant and used for many things such as food, medicine, tools, and ornaments. ...
Characterization of extended-spectrum-β lactamases (esbls) and other resistant genes encoding bacteria from a rural community settlement

Brooks, Kesego Portia (Botswana International University of Science and Technology (BIUST), 2021-11)

Antimicrobial resistance (AMR) is regarded as a global health threat, characterized by rising resistant bacteria and rapid development of resistance genes to existing antibiotics used in clinical and veterinary settings. ...
The geophysical signatures of the Kgagodi basin, central Botswana

Nkanokang, Chawada (Botswana International University of Science and Technology (BIUST), 2022-08)

The Kgagodi basin is located at 22°28'26.67"S and 27°34'54.10"E, about 7 km South of the Kgagodi village, Central Botswana. This structure is buried by sediments thus it has no pronounced surficial expression. The ...
Characteristics of shear deformation along the eastern and southern terrane boundaries of the Motloutse complex, eastern Botswana

Mosokomani, Valiant Shandulo (Botswana International University of Science and Technology (BIUST), 2022-03)

The Motloutse Complex to the southwestern margin of Zimbabwe Craton is a medium-grade terrane in northeastern Botswana. Some studies consider it as part of the Limpopo Complex high-grade terrane between the Kaapvaal ...
Mineralogical and geochemical characterisation of the Kgwebe volcanic formation in the Ghanzi-Chobe belt portion of the Kalahari copper belt: insights into copper and silver source (s)

Elias, Esther (Botswana International University of Science and Technology (BIUST), 2022-03)

A combination of petrography and geochemistry (XRF, ICP-OES and ICP-MS) was utilized in order to investigate the magma source(s), magma evolution and petrogenesis implications of the Kgwebe Volcanic Formation (KVF) ...
Suitability of Morupule fly ash as amendment for two agricultural soils in Botswana

Taupedi, Sekgele Bobby (Botswana International University of Science and Technology (BIUST), 2022-08)

Electricity generation in thermal power stations results in high fly ash production that, if not managed properly, will be a potential source of pollutants. In Botswana, the fly ash from Morupule Power Plant is being ...
A context-aware lemmatization model for setswana language using machine learning

Bafitlhile, Kgosiyame Ditiro (Botswana International University of Science and Technology (BIUST), 2022-08-25)

Lemmatization is an important task which is concerned with making computers understand the relationship that exists amongst words written in natural language. It is a prior condition needed for the development of natural ...
The effect of substituents on the stability and fragmentation of para benzoquinone molecular anion

Samuel, Nonofo (Botswana International University of Science and Technology (BIUST), 2022-08)

Quinones form a large group of organic compounds with various applications in industry, biological systems, and pharmacology. They can capture an electron with kinetic energy exceeding zero and keep it for a longer ...
Chalcones in the synthesis of heterocyclic compounds: pyrazoles, flavans and pyrimidines

Masutlha, Lesego Lilian (Botswana International University of Science and Technology (BIUST), 2021-11)

This study was aimed at the synthesis of a library of heterocyclic compounds. The initial reactions involved the condensation of substituted acetophenones with benzaldehyde derivatives in either ethanolic solution of ...
Botswana herbal tea quality assessmentt: antioxidant activity, proximate and metal content analysis of terminalia prunioides pods tea.

Mosii, Laone Thato Juddie (Botswana International University of Science and Technology (BIUST), 2022-09-09)

Studies have linked herbal teas to the prevention of many diseases, leading to an increase in their use and demand which has endorsed an increase in their commercial activity and production. Consequently, performing a ...
The effects of heavy metals on the quality and yield of vetiver grass (chrysopogon zizanioides) essential oil

Kereeditse, Tsotlhe Trinity (Botswana International University of Science and Technology (BIUST), 2022-03)

Vetiver grass (Chrysopogon zizanioides;CZ) is a well-known grass that can both remediate various heavy metals in soil as well as producing essential oil that is commonly used in premier perfumery, food and pharmaceutical ...
Some new generalized distributions with applications

Rannona, Ketlhamile (Botswana International University of Science and Technology (BIUST), 2021-09-20)

New generalized distributions namely Topp-Leone-G Power Series class of distributions, Marshall-Olkin-Exponentiated Odd Exponential Half Logistic-G family of distributions, Exponentiated Odd Exponential Half Logistic-G ...
Optimal Investment-consumption-insurance strategy with inflation risk and stochastic income in an Ito-levy setting

Moagi, Gaoganwe Sophie (Botswana International University of Science and Technology (BIUST), 2021-11-09)

In this study, we focus on finding the possible optimal strategy where there is consump tion, stochastic income, purchasing of life insurance and investment in risky and risk-less investments are made. The stock follows ...

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