Browsing Natural and Agricultural Sciences by Title
Now showing items 23-42 of 2739
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Advances in Risk Based Investing by means of Quantile Regression
(North-West University (South Africa), 2021)This thesis advances the relatively open-field of risk-based investing using methods available through quantile regression. To explain the complex relationship between different assets, practitioners and academics alike, ... -
Aerosol optical properties at a savannah grassland site in South Africa
(North-West University (South Africa), 2020)Atmospheric aerosols affect the earth’s radiative budget in two ways: firstly, particles directly absorb and scatter short- and long-wave radiation and, secondly, particles indirectly influence the lifetime and physical ... -
Aerosol source apportionment in southern Africa
(North-West University (South Africa), 2021)South Africa, and especially the Highveld region, contributes significantly to the atmospheric aerosol loading over southern Africa. South Africa has recognised the importance of localised air quality and its impact on ... -
Affective computing and deep learning to perform sentiment analysis
(North-West University (South Africa), 2020)Companies often rely on feedback from consumers to make strategic decisions. However, respondents often neglect to provide their honest answers due to issues, such as response and social desirability bias. This may be ... -
African indigenous sayings in childrearing and social cohesion in Dinokana and Motswedi villages, North West Province
(North-West University (South Africa), 2022)Studies have shown that today’s parenting inclination has curved towards western ways, urban centres being the focal point, preferred over indigenous ways that boasted the cushions of extended families, which laid sound ... -
Age structured population dynamics with applications in epidemiology
(North-West University (South Africa), 2022)Models describing the dynamics of biological phenomena that evolve in stages have been studied extensively using time-delay mathematical models. Recently, these models have evolved into age structured models with age ... -
Agricultural adaptation to intensifying El Niño and La Niña periods within North West, South Africa
(North-West University (South Africa), 2021)Climate can be defined as the mean and variability of the relevant atmospheric parameters such as temperature, precipitation and wind over a long period of time. These parameters fluctuate over time, creating different ... -
Agricultural commercialization through market participation by smallholder tomato farmers in Bojanala District, North West Province
(North-West University (South Africa), 2023)The tomato (Solanum lycopersicum) is a significant crop with significant commercial market potential and health promise for farmers. If (1) the degree of commercialization; (2) commercialization indices; and (3) the level ... -
Agro-morphological and genetic characterization of advanced potato (Solanum tuberosum L.) breeding lines in Mahikeng, South Africa
(North-West University (South Africa), 2022)One of the most important strategies for increasing crop productivity and improvement in potato yield output is the development and introduction of new cultivars. Phenotypic characteristics are the first aspects to consider ... -
Agrochemicals related to maize crops in South Africa and associated biological effects : an in vitro study
(North-West University (South Africa), 2023)Although agrochemicals reduce pest-associated crop losses, these chemicals end up in non-target environments following rainfall and irrigation. When fractions of agrochemical mixtures are bioavailable, they pose a threat ... -
Agronomic evaluation and genetic studies of Lagenaria siceraria populations derived from landraces collected from KwaZulu-Natal, South Africa
(North-West University (South Africa), 2022)Lagenaria siceraria is one of the most important cucurbitaceous vegetables due to its prolific bearing habit, utility as a cooked vegetable and its low cost of cultivation. The fruit is a vital source of minerals, vitamins, ... -
Agronomic, genetic, and nutritional characterization of Nightshade (Solanum spp.) accessions
(North-West University (South Africa), 2022)Nightshades (commonly referred to as African and/or Black nightshade) comprise several species within a section of the genus Solanum. There are 30 species reported in the section in the world, and about 12 species are found ... -
Air movement on and around tailings storage facilities on the Highveld of South Africa
(North-West University (South Africa), Potchefstroom Campus, 2017)Dust from gold tailings storage facilities (TSFs) is problematic in certain areas of the South African Highveld. Many of these localities around TSFs are densely populated, which often result in tailings dust being a ... -
Air quality assessment of the industrialized western Bushveld Igneous Complex
(North-West University, 2011)South Africa has the largest economy in Africa, with significant mining and metallurgical activities. A large fraction of the mineral assets is concentrated in the Bushveld Igneous Complex (BIC), with the western limb ... -
Air quality in the Johannesburg–Pretoria megacity : its regional influence and identification of parameters that could mitigate pollution
(North-West University, 2012)A megacity is generally defined as a city that, together with its suburbs or recognised metropolitan area, has a total population of more than 10 million people. Air pollution in megacities is a major concern due to large ... -
Airborne radiometric surveys through the usev of a handheld spectrometer fitted to a UAV
(North-West University, 2018)Matter is made up of small particles called atoms of which some are unstable due to an imbalance between protons and neutrons. This results in the particles being radioactive, which will over time undergo radioactive decay ... -
AKSM2A en AKSM2B ensiemtoets optimalisering en rekombinante uitdrukking
(North-West University (South Africa). Potchefstroom Campus, 2019)Glisienkonjugasie is ʼn Fase 2-biotransformasieweg wat verantwoordelik is vir die detoksifisering van xenobiotika soos bensoaat en salisilaat. Hierdie biotransformasieweg is gekonserveerd en speel ʼn baie belangrike rol in ... -
Aktuele afbakeningskriteria vir die klassifikasie van landelike nedersettings in Suid-Afrika
(North-West University (South Africa), 2022)The identification of current demarcation criteria and the development of ʼn specifically rural typology has adopted a slow trend in South Africa. Different government departments have each developed individual settlement ... -
An algorithmic interpretation of historic cosmic ray recordings
(North-West University, 2018)The aim of this study is to make additional GLE (ground level enhancement) data recordings from the 1940s and 1950s available, as well as generating of a veri ed, accurate synthetic ground truth image of historic cosmic ... -
The alignment of social and labour plan (SLP) commitments with municipal integrated development plans (IDPs)
(2014)According to s 23, 24 & 25 of the MPRDA, mining companies must submit a Social and Labour Plan (SLP) when applying for mining rights, and the local economic development (LED) of the SLP must be aligned with the local and ...
