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The colour order: race and colour perception in South AfricaMagaisa, Tatenda January 2015 (has links)
Thesis (M.Fine Arts)--University of the Witwatersrand, Faculty of Humanities, School of Arts, 2016. / This paper will be an analysis of the covers and contents of the South African editions of Glamour magazine from September 2014 to August 2015 and True Love magazine from September 2014 to August 2015. The analysis will consider the effects of: globalisation; globalised culture and consumption; and perceptions of race and skin colour, (specifically the notion of colourism) in South Africa.
Colourism is a prejudicial system that renders value and perpetuates social hierarchies along perceived tonal difference in skin colour. It has been asserted by writers like Deborah Gabriel and Nicole Fleetwood that this value system exists within communities of people of colour and is perpetuated by mainstream media, but maintains a somewhat obscure presence. I will consider the mechanisms that inform this colour system and will show how globalisation works to facilitate colourism. Finally, I aim to explain how skin colour extends beyond the body and define the effects of global cultural interaction, showing that colourism is not simply about skin colour and tone, but about economic, social, and political realities. / MT2017
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Basic evidence for epidermal H2O2/ONOO--mediated oxidation/nitration in segmental vitiligo is supported by repigmentation of skin and eyelashes after reduction of epidermal H2O2 with topical NB-UVB-activated pseudocatalase PC-KUSSchallreuter, Karin U., Salem, Mohamed M.A., Holtz, Sarah, Panske, Angela 08 1900 (has links)
No / Nonsegmental vitiligo (NSV) is characterized by loss of inherited skin color. The cause of the disease is still unknown despite accumulating in vivo and in vitro evidence of massive epidermal oxidative stress via H2O2 and peroxynitrite (ONOO−) in affected individuals. The most favored hypothesis is based on autoimmune mechanisms. Strictly segmental vitiligo (SSV) with dermatomal distribution is a rare entity, often associated with stable outcome. Recently, it was documented that this form can be associated with NSV (mixed vitiligo). We here asked the question whether ROS and possibly ONOO− could be players in the pathogenesis of SSV. Our in situ results demonstrate for the first time epidermal biopterin accumulation together with significantly decreased epidermal catalase, thioredoxin/thioreoxin reductase, and MSRA/MSRB expression. Moreover, we show epidermal ONOO− accumulation. In vivo FT-Raman spectroscopy reveals the presence of H2O2, methionine sulfoxide, and tryptophan metabolites; i.e., N-formylkynurenine and kynurenine, implying Fenton chemistry in the cascade (n=10). Validation of the basic data stems from successful repigmentation of skin and eyelashes in affected individuals, regardless of SSV or segmental vitiligo in association with NSV after reduction of epidermal H2O2 (n=5). Taken together, our contribution strongly supports H2O2/ONOO-mediated stress in the pathogenesis of SSV. Our findings offer new treatment intervention for lost skin and hair color.—Schallreuter, K. U., Salem, M. A. E. L., Holtz, S., Panske, A. Basic evidence for epidermal H2O2/ONOO−-mediated oxidation/nitration in segmental vitiligo is supported by repigmentation of skin and eyelashes after reduction of epidermal H2O2 with topical NB-UVB-activated pseudocatalase PC-KUS.
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