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(University of Namibia, 2020)A number of environmental studies previously conducted in the Tsumeb Mining district analysed total metal concentrations in soils and vegetation; with results showing high concentrations of heavy metals such as arsenic, ...
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(University of Namibia, 2020)The occurrence and distribution of mercury (Hg) and other co-occurring heavy metals in the mining towns of Berg Aukas and Tsumeb in northern Namibia were studied Different forms of Hg and other heavy metals were characterized ...
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(University of Namibia, 2020)In times of fossil fuel shortage, increasing crude oil prices, as well as rejection of conventional energy sources (e.g. coal or nuclear power plants), sustainable energy forms become more and more the focus of attention. ...
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(University of Namibia, 2019)The study was conducted to investigate the antibacterial activities of stem and leaves from Terminalia sericea and the live and dead bark from Combretum imberbe. The aqueous and organic crude extracts of the two plants ...
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(University of Namibia, 2020)Bacteria belonging to the genus bifidobacteria are reported to be the most abundant gut endosymbiotic flora in the intestinal tract of new-born infants, particularly those that have been exclusively breast-fed. This high ...
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(University of Namibia, 2019)Medicinal plants are a rich source of phytochemicals, and are used traditionally for treatment of many ailments, and thus are of great ethnomedicinal importance. This study presents work on phytochemical analysis, in vitro ...
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(University of Namibia, 2018)Tephrosia lupinifolia is used traditionally for the treatment of malaria, diarrhea, toothache and tuberculosis. Two flavonoids, lupinifolin and lupinifolinol were previously isolated from the hexane root extract of T. ...
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(University of Namibia, 2020)The open concrete-lined Calueque-Oshakati canal has been operational since the 1970s, carrying raw water from the Calueque Dam on the Kunene River in the Southern region of Angola to the Central Northern region of Namibia. ...
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(University of Namibia, 2020)Natural organic matter (NOM) is a generic term for a mixture of organic, slightly water-soluble components found in soil, sediment and natural waters, which represents severe challenges for the process control in water ...
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(University of Namibia, 2020)In 1991, Michael Grätzel and co-workers developed a new photovoltaic cell known as Dye Sensitized solar cells (DSSCs); these photovoltaic semiconductor devices convert solar radiation directly into electricity [1]. ...
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(University of Namibia, 2020)Bats are present and they play unique ecological roles in various habitats in Namibia. Yet the patterns of species richness and composition of bats associated with these habitats within different biomes in Namibia still ...
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(University of Namibia, 2020)To study the optical and photocatalytic properties of zinc oxide (ZnO or zincite), thin films doped with metallic silver-nanoparticles (Ag-NPs), with various amounts of Ag (20 mol% ≤ n ≤ 80 mol%), were fabricated on a ...
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(University of Namibia, 2020)Precipitable Water Vapour (PWV) is the amount of water vapour in the atmospheric column above a location equivalent to the amount of liquid precipitation that would result if all the water vapour in the column was condensed. ...
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(University of Namibia, 2019)Approximately 6.6% of Hardap Region has unsafe drinking water according to WHO (2018) guidelines. Consuming this water can cause serious illness. Three filters, namely the bucket filter, sand filter, and charcoal filters ...
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(University of Namibia, 2020)Oshikundu/Ontaku is a nonalcoholic, acidic, opaque fermented beverage. It is comprised of pearl millet (Pennisetum glaucum (L.) R. Br) meal/flour, commonly known as mahangu, malts of pearl millet or sorghum (Sorghum bicolour ...
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(University of Namibia, 2019)Dye-Sensitized Solar Cells (DSSCs) are promising third-generation photovoltaic devices that offer the conversion of light energy into electricity at a lower cost. At the heart of this device is a sensitizer (dye) adsorbed ...
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(University of Namibia, 2020)The aims of this study were to conduct an ethnobotanical survey on indigenous knowledge of plants traditionally used as herbs and spices in Kabbe constituencies of the Zambezi region, evaluate their antimicrobial activity, ...
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(University of Namibia, 2020)The activity concentrations of the naturally occurring radionuclides 238U, 232Th, and 40K in soil samples collected from the Ohorongo Cement plant and the town of Otavi, Namibia have been determined using a High-Purity ...
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(University of Namibia, 2019)The High Energy Stereoscopic System (H.E.S.S.) is an array of imaging atmospheric Cherenkov telescopes located in the Khomas highlands of Namibia. Their primary purpose is to detect Cherenkov light (CL) produced by ...
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(University of Namibia, 2019)Floodplain fisheries are typically multi-species and in most cases harvested with a variety of gears. In the upper- Zambezi, artisanal gillnet fishers mainly target three cichlids: Oreochromis andersonii, Oreochromis ...
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(University of Namibia, 2019)Gold extraction from different type of ores is largely driven by elemental compositions and gold particle size and distribution. Another major factor that contribute to inaccurate gold analysis/ estimation is the nugget ...
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(University of Namibia, 2020)Tree ring studies, known as dendrochronology, have been an important tool for studying climate variations since the beginning of 1900s. This is because the information preserved in tree rings of most tree species for many ...
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(University of Namibia, 2020)The poor performance of grade 10 learners has been a big concern over the last few years and in the effort to understand this phenomenon there has been efforts to present models that explain it. Modelling semi-continuous ...
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(University of Namibia, 2020)The objective of this research was to discover new drug leads from Namibian marine algae. Plocamium extracts were screened and their phytochemical contents were quantified. Both the antioxidant activity and the antimicrobial ...
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(University of Namibia, 2017)This research study focused on the previously unknown uranium mineralisation hosted in garnet and magnetite bearing sheeted leucogranites (SLG's) I alaskites at Namibplaas. The various SLG's were distinguished and characterised ...
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(University of Namibia, 2019)Access to clean and safe water for everyday use is needed for a healthy society. Water treatment and recovery of precious metals is a serious challenge particularly for developing countries since the current technologies ...
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(University of Namibia, 2019)Mushrooms are considered as one of the notable functional foods for human consumption that have been cultivated and gathered for hundreds of years. The usage of mushrooms has expanded to a wide extent not only as food but ...
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(University of Namibia, 2019)Motor Vehicle Traffic Crashes (MVTC) are one of the leading causes of death and disability in the world, especially in developing countries. Despite Namibia having a well- developed road network, MVTC are the third highest ...
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(University of Namibia, 2019)Knowledge of groundwater age / residence time in Okongo perched aquifer is important in understanding key issues in the evolution of groundwater, recharge rates, recharge mechanisms, resource renewability, flow rate and ...
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(University of Namibia, 2019)BACKGROUND: Developing countries including Namibia are experiencing a rapid increase in non-communicable diseases. Blood pressure is estimated to instigate round about 60 percent of deaths around the world, of which 80 ...