https://ir.unisa.ac.za/handle/10500/7058 Thu, 17 Sep 2026 23:28:14 GMT 2026-09-17T23:28:14Z https://ir.unisa.ac.za/handle/10500/7634 Art and/as Anarchy: Portraying the artist during times of turmoil and war Roos H. Two South African novels, Congo Song (Cloete [1943]1973) and Moxyland (Beukes 2008) comment on the central part played by artists and their work in the midst of a society on the brink of war. Both narratives are set in Africa; one portrays a close-knit white community in the Congo in 1939, facing the collapse of their colonial way of life, the other depicts the apocalyptic nature of a dystopian Cape Town around 2018, reflecting the global reality of environmental catastrophe, deadly epidemics and state and corporate tyranny. In both texts art and artists play pivotal roles within a group of characters, and their views of their work, the multiple manifestations of creative art and the relationship between their specific communities and what is regarded there as art, form an integral part of the narrative whole. This article focuses on how various textual strategies are exploited to reveal how the creative urge is linked with resistance against as well as support for destructive violence. It also discusses aspects of the novels that are structured to, on the one hand, endorse the quest for romantic aestheticism and, on the other hand, forecast the reign of cyberspace and genetically modified art. 2011 04 15. © JLS/TLW. Fri, 01 Jan 2010 00:00:00 GMT https://ir.unisa.ac.za/handle/10500/7634 2010-01-01T00:00:00Z https://ir.unisa.ac.za/handle/10500/7633 Zulu Noun Classes Revisited: A Spoken Corpus-Based Approach Mtholeni N.N. [No abstract available] Fri, 01 Jan 2010 00:00:00 GMT https://ir.unisa.ac.za/handle/10500/7633 2010-01-01T00:00:00Z https://ir.unisa.ac.za/handle/10500/7635 Sublethal effects of insecticides on the reproductive success of the Tsetse species Glossina pallidipes and G. m. morsitans Kibuka-Sebitosi E. Female Glossina pallidipes Austen and G. m. morsitans Westwood (Diptera: Glossinidae) were treated with deltamethrin or pyrethrum extract through topical application or by exposure to cloth or glass treated with the same insecticides. Reproductive performance was assessed in terms of survival, pupae number and viability and reproductive deformities and abnormalities within the reproductive systems including abortions. Survival and fecundity of treated flies were significantly reduced (P<0.001). Pupae were small, mostly non-viable, and were arrested at various stages of development. Abortions of egg and all stages of larvae were observed in pregnancy cycles 1-7 following insecticide treatment. Various concentrations ranging from 1-1014 nanograms per micro litre (ng/μL) of insecticide in redistilled acetone topically applied (1μ/fly) on the dorsal thorax of the females, 24 hr after their previous blood meal, resulted in both insecticides in various concentrations causing reproductive abnormalities in both species, including egg reabsorption after ovulation. The sublethal effects were observed to prevent ovulation altogether in some of the flies, which implies effects on the reproductive performances and control strategies for tsetse flies. Sublethal doses could impact negatively on beneficial organisms in the environment where tsetse flies occur mainly riverine, woodlands and forest ecosystems. Fri, 01 Jan 2010 00:00:00 GMT https://ir.unisa.ac.za/handle/10500/7635 2010-01-01T00:00:00Z https://ir.unisa.ac.za/handle/10500/7619 Social-learning abilities of wild vervet monkeys in a two-step task artificial fruit experiment Van De Waal E.; Bshary R. Social learning is the basis for the formation of traditions in both human and nonhuman animals. Field observations and experiments provide evidence for the existence of traditions in animals but they do not address the underlying social-learning mechanisms. We used an established laboratory experimental paradigm, the artificial fruit design, to test for copying of a sequence of actions and local enhancement in six groups of wild vervet monkeys, Chlorocebus aethiops. We introduced a two-step task where models had to remove a bar to untie a rope that blocked a single door of a box. The models were high-ranking individuals that monopolized the box early on and discovered by trial and error how to open it. We obtained successful models in three groups, while the other three groups acted as controls. After 20 successful demonstrations, we tested subjects with a box that had a rope in the same position but the rope was not functional. Under these conditions, sequential copying of the two-step opening did not occur. Only individuals that were exposed to models were likely to touch the bar if door opening was not immediately successful, providing evidence for local enhancement. When we presented the boxes with the functional rope, we found no effect of having been exposed to a model on the probability that subjects solved the task. We conclude that the social-learning abilities of wild vervet monkeys are relatively limited and discuss potential problems concerning the technical difficulty of the task. © 2010 The Association for the Study of Animal Behaviour. Sat, 01 Jan 2011 00:00:00 GMT https://ir.unisa.ac.za/handle/10500/7619 2011-01-01T00:00:00Z