Central University of Technology

About: Central University of Technology is a education organization based out in Bloemfontein, South Africa. It is known for research contribution in the topics: Higher education & Population. The organization has 852 authors who have published 1478 publications receiving 13171 citations. The organization is also known as: Technikon Free State & Central University of Technology Free State.

The diversity of culturable airborne fungi in an active South African gold mine

Abstract: SEVERAL STUDIES HAVE BEEN CONDUCTED on the presence and diversity of airborne fungal spores in residential and occupational areas. This is the first investigation on this topic in the mining environment. The impact of fungi-especially as opportunistic pathogens-on their health and productivity needs to be assessed, considering the compromised health of a large number of HIV-infected miners in South Africa. Accordingly, the aim of this study was to determine the abundance of fungal spores as well as the diversity of culturable airborne fungi in an active gold mine. The results indicate that three of the sampled sites in the mine contain abundant numbers of culturable airborne fungi. The first site was next to an auxiliary extraction fan, which could act as an accumulator for airborne fungal spores from the rest of the mine. The two other sites had high human activity, disturbances from which may contribute to an elevated fungal load in the air. The presence of timber supports at one site may serve as a growth substrate for several fungal genera. The diversity of filamentous fungal genera increased from outside the mine to deeper into the mine, whereas the diversity of yeast genera followed an opposite trend, with no yeasts detected deep in the mine. Although most of the isolates identified are not pathogens, they could still have a negative impact (either as opportunistic pathogens or allergens) on workers, especially immunocompromised persons if exposed to them for prolonged periods.

Response of Pemphigus betae (Hemiptera: Aphididae) and Beneficial Epigeal Arthropod Communities to Sugarbeet Plant Density and Seed-Applied Insecticide in Western Nebraska.

Abstract: This study investigated the impact of a neonicotinoid seed-applied insecticide (Poncho Beta) and two plant densities (86,487 and 61,776 plants per hectare) on the sugarbeet root aphid (Pemphigus betae Doane), beneficial epigeal arthropods, and selected crop yield parameters in sugarbeet (Beta vulgaris L. var. vulgaris). Ground beetles and centipedes were the most commonly collected taxa during 2012 and 2013, respectively. Centipede, spider, and rove beetle activity densities were not affected by the seed-applied insecticide, whereas plant density had a marginal effect on centipede activity density during 2012. Ground beetle species richness, diversity, and evenness were also not impacted by the seed treatments. However, during 2013, ground beetle activity density was significantly higher in plots planted with untreated sugarbeet seeds due to the abundance of Bembidion quadrimaculatum oppositum Say. Sugarbeet root aphid populations were significantly higher in the untreated plots during both years. In 2012, sugarbeet tonnage and sugar yield were higher under the low plant density treatment, while higher sugar content was recorded from the seed-applied insecticide plots (2013). Seed-applied neonicotinoids and plant density had little impact on beneficial epigeal arthropod activity density. Seed treatment did result in decreased root aphid populations; however, these reductions were not sufficient to be considered as an adequate control. This limited aphid control likely contributed to inconsistent effects on yield parameters.

In silico strategies on prion pathogenic conversion and inhibition from PrPC -PrPSc.

Abstract: Introduction: To date, various therapeutic strategies identified numerous anti-prion compounds and antibodies that stabilize PrPC, block the conversion of PrPC-PrPSc and increased effect on PrPSc c...

Consumption of Wild-Growing Vegetables in the Honde Valley, Zimbabwe

Abstract: This study evaluates the relevance of wild-growing vegetables in two villages of the Honde Valley, Zimbabwe, by documenting the use, knowledge of, and attitudes toward these plants. Information on plant use was gathered through 20 food diaries, 8 focus group discussions, and semi-structured interviews with 76 individuals (32 male) from the villages. Forty-two ethnospecies of wild vegetables were recorded and 26 identified to species. Wild leafy vegetables were consumed about twice a week by participating families; Cleome gynandra and Bidens pilosa were eaten most frequently. Preferred vegetables were dried and conserved for off-season use. Knowledge of wild food plants was transmitted orally within families, acquired in early childhood, and gradually increased with age. Gender differences were found in the quantity and type of knowledge. According to the villagers, the advantages of wild vegetables were their nutritional and economic value, as well as their accessibility. The perceived drawbacks were mainly related to quality issues, strong tastes, and lack of year-round availability. Despite preference for cultivated alternatives among younger people, there was renewed interest in wild plants due to recent health concerns such as diabetes and HIV.

A reflection on the South African food research environment

Abstract: Purpose – This paper seeks to cast light on the issues impacting South African food research. During the first decade of democracy the South African research and development sector has experienced many changes and although the aim of these changes was to bring about efficiency, the research and development (R&D) fraternity is still faced with various challenges in its endeavours to meet the demands from commerce and industry. As a result of continuously changing market demands the food and drink industry has become one of the main sectors that are dependant on novel technologies developed by the R&D sector.Design/methodology/approach – An overview of the broader South African research landscape is given followed by a closer look at the nature and extent of local food‐related research.Findings – In order to meet the demand of industry a new mindset is required amongst research institutions towards providing an array of scientific services that extend intra‐ and inter‐disciplinary boundaries and where long‐...