the ISFC39 Proceedings - International Systemic-Functional ...

Papers from the 39th ISFCIt has been reported (ENG: endorsement) that the frequency ofoccurrence, severity and spatial scale of hypoxia has been increasingdue to pollution and global warming effect (Wu, 2002)...For example, recent (GRAD) studies have shown (ENG:endorsement) that the bottom of the northern Gulf of Mexico isregularly hypoxic or anoxic and the problem has been deterioratingdue to the introduction of anthropogenic nutrients (Justic et al. 1997).Although (ENG: counter) these studies have demonstrated (ENG:endorsement) the general adverse effects of chronic aquatic hypoxiaon the heart, little is known (invoked ATT: –ve appreciation) aboutthe underlying molecular mechanisms of the M2 mAChR underchronic hypoxic condition.… In order to have a better understanding (ATT: +ve appreciation)of the adverse impact of aquatic hypoxia in fish, it is necessary (ATT:+ve appreciation) to study (ENG: internal source) the impact ofhypoxia at the molecular level...Table 2: excerpt from biology research warrantburnishingexternal sourcetarnishingexternal sourceburnishinginternal source5. Burnishing and tarnishing in a performance studies essayThe text used to exemplify resources of burnishing and tarnishing in performance studies isan excerpt from an interpretative essay at undergraduate level. As with the excerpt frombiology, this segment has been divided into phases based on the particular set of burnishingand tarnishing resources.McAuley suggests (ENG: acknowledge & +ve ATT: high status source)that a performance could, and most probably should, be viewed morethan once prior to analysis; and that this is a method of avoiding asubjective interpretation (ATT: +ve appreciation)…I (ENG: acknowledge & +ve ATT: high status source) find this aproblematic idea (ATT: -ve appreciation), as a performance makercreates a work that is intended to function on a single viewing…There is really (GRAD) no (ENG: negation) room in McAuley’sschema (ENG & +ve ATT: high status source) to discuss the experientialside of a performance such as this, perhaps better analysed (ATT:+ve appreciation) through a framework of phenomenology or throughVictor Turner’s theories of the liminal phase (ENG: acknowledge).Table 3: excerpt from performance studies essayburnishingexternal sourcetarnishingexternal source& burnishinginternal sourcetarnishingexternal source;burnishinganotherexternal sourceAs in biology, the performance studies text also moves through three steps of burnishingand tarnishing. However, in the second step, tarnishing of the external source is combinedwith burnishing the internal source. In this case burnishing of the internal source is achievedthrough the use of the high status source, ‘I’ rather than reference to the writer’s text inbiology (i.e. this study). The writer is the one who burnishes external sources and is at thesame time burnishes themselves. Interestingly, at the end of shunting, the student writercloses the position by affiliating with the discourse community again through burnishinganother external source.19