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forum:logopädie 32.2018, 1
(2018)
forum:logopädie 32.2018, 2
(2018)
forum:logopädie 32.2018, 3
(2018)
forum:logopädie 32.2018, 4
(2018)
forum:logopädie 32.2018, 5
(2018)
forum:logopädie 32.2018, 6
(2018)
Analysis of social media using digital methods is a flourishing approach. However, the relatively easy availability of data collected via platform application programming interfaces has arguably led to the predominance of single-platform research of social media. Such research has also privileged the role of text in social media analysis, as a form of data that is more readily gathered and searchable than images. In this paper, we challenge both of these prevailing forms of social media research by outlining a methodology for visual cross-platform analysis (VCPA), defined as the study of still and moving images across two or more social media platforms. Our argument contains three steps. First, we argue that cross-platform analysis addresses a gap in research methods in that it acknowledges the interplay between a social phenomenon under investigation and the medium within which it is being researched, thus illuminating the different affordances and cultures of web platforms. Second, we build on the literature on multimodal communication and platform vernacular to provide a rationale for incorporating the visual into cross-platform analysis. Third, we reflect on an experimental cross-platform analysis of images within social media posts (n = 471,033) used to communicate climate change to advance different modes of macro- and meso-levels of analysis that are natively visual: image-text networks, image plots and composite images. We conclude by assessing the research pathways opened up by VCPA, delineating potential contributions to empirical research and theory and the potential impact on practitioners of social media communication.
In this study, we analyze interactions in lake and lake catchment systems of a continuous permafrost area. We assessed colored dissolved organic matter (CDOM) absorption at 440 nm (a(440)(CDOM)) and absorption slope (S300-500) in lakes using field sampling and optical remote sensing data for an area of 350 km(2) in Central Yamal, Siberia. Applying a CDOM algorithm (ratio of green and red band reflectance) for two high spatial resolution multispectral GeoEye-1 and Worldview-2 satellite images, we were able to extrapolate the a()(CDOM) data from 18 lakes sampled in the field to 356 lakes in the study area (model R-2 = 0.79). Values of a(440)(CDOM) in 356 lakes varied from 0.48 to 8.35 m(-1) with a median of 1.43 m(-1). This a()(CDOM) dataset was used to relate lake CDOM to 17 lake and lake catchment parameters derived from optical and radar remote sensing data and from digital elevation model analysis in order to establish the parameters controlling CDOM in lakes on the Yamal Peninsula. Regression tree model and boosted regression tree analysis showed that the activity of cryogenic processes (thermocirques) in the lake shores and lake water level were the two most important controls, explaining 48.4% and 28.4% of lake CDOM, respectively (R-2 = 0.61). Activation of thermocirques led to a large input of terrestrial organic matter and sediments from catchments and thawed permafrost to lakes (n = 15, mean a(440)(CDOM) = 5.3 m(-1)). Large lakes on the floodplain with a connection to Mordy-Yakha River received more CDOM (n = 7, mean a(440)(CDOM) = 3.8 m(-1)) compared to lakes located on higher terraces.
Intertextualität in deutschen Rap-Texten und ihr didaktischer Nutzen für den Deutschunterricht
(2018)
Der Fokus der Arbeit liegt auf Texten des Genres Deutschrap. Untersucht werden diese Primärquellen in Hinblick auf Formen und Funktionen von Intertextualität und wie diese für die Vermittlung von Unterrichtsinhalten im Deutschunterricht eingesetzt werden können. Zu diesem Zweck ist die Arbeit in einen literaturtheoretischen Teil und einen didaktischen Teil gegliedert. Zunächst erfolgt ein Überblick zum Begriff der Intertextualität und der verwendeten Terminologie. Danach wird erklärt, inwiefern Rap sich als literarische Gattung begreifen lässt, bevor die spezielle Beschaffenheit und der Stellenwert intertextueller Referenzen in deutschen Rap-Texten untersucht werden. Im Anschluss werden intertextuelle Phänomene in Rap-Texten kategorisiert, erläutert und anhand exemplarischer Rap-Zeilen belegt. Im didaktischen Teil der Arbeit münden die Ergebnisse schließlich im Entwurf einer Unterrichtssequenz zu dem Thema Intertextualität.