Competitive Multifacility Location on Networks: the (r∣Xp)‐Medianoid Problem

Abstract.  We investigate the ( r ∣ X _p )‐medianoid problem for networks. This is a competitive location problem that consists of determining the locations of r facilities belonging to a firm in order to maximize its market share in a space where a competitor is already operating with p facilities. We consider six scenarios resulting from the combination of three customer choice rules (binary, partially binary, and proportional) with two types of services (essential and unessential).
Known discretization results about the existence of a solution for the set of nodes are extended. Some examples and computational experience using heuristic algorithms are presented.     

The Burning of Sampati Kuer: Sati and the Politics of Imperialism,Nationalism and Revivalism in 1920s India

Sati, the immolation of a Hindu widow on her husband's funeral pyre, is a rare, but highly controversial practice. It has inspired a surfeit of scholarly studies in the last twenty years, most of which concentrate on one of two main historical sati ‘episodes’: that of early‐colonial Bengal, culminating with the British prohibition of 1829, and that of late twentieth‐century Rajasthan, epitomised by the immolation of Roop Kanwar in 1987. Comparatively little detailed historical analysis exists on sati cases between these two events, however, a lacuna this paper seeks to address by exploring British and Indian discourses on sati as they existed in late‐colonial India. The paper argues that sati remained a site of ideological and actual confrontation in the early twentieth century, with important implications for ongoing debates about Hindu religion, identity and nation. It focuses on the intersection between various colonial debates and contemporaneous Indian social and political concerns during the controversy surrounding the immolation of Sampati Kuer in Barh, Bihar, in 1927, emphasising resonances with postcolonial interpretations of sati and the dissonance of early nineteenth‐century tropes when reproduced in the Patna High Court in 1928. Thus, while Kumkum Sangari and Sudesh Vaid have suggested that ‘ad hoc’ attempts to piece together a ‘modern’ narrative of widow immolation began in the 1950s, this paper will suggest that various contemporary discursive formations on sati can be observed in late‐colonial India, when discussions of sati became entwined with Indian nationalism and Hindu identity politics and evoked the first organised female response to sati from an emergent women's movement that saw it as an ideological, as well as physical, violation of women.     

Geographie heute

Im STANDORT 3/1999 haben Heiner Monheim, Maike Schwarte und Christoph Winkelk?tter im Vorfeld des 52. Deutschen Geographentags in Hamburg die Ergebnisse von 60 Expertengespr?chen zum Perspektivenwechsel in der deutschen Geographie vorgestellt. In dem vorliegenden Beitrag werden diese Befunde durch weitere Prim?r- und Sekund?ranalysen erg?nzt, die im Rahmen einer Sonderveranstaltung “Zur Lage der Geographie in Deutschland” beim Geographentag vorgestellt und diskutiert wurden. Die Grundlage bilden Arbeiten von Studierenden der Universit?t Trier im Rahmen eines Forschungspraktikums und einer Projektstudie. In dem vorliegenden Beitrag wird ein Auszug der wichtigsten Ergebnisse der Studien und der Podiumsdiskussion in Hamburg vorgestellt. Das Projekt wurde durch die Deutsche Gesellschaft für Geographie mit 5000 DM gef?rdert. Der DVAG hat die Projekte durch logistische Hilfe bei den Befragungen und durch Gespr?chsbereitschaft bei den Diskussionen aktiv unterstützt.     

Monitoring façade soiling as a maintenance strategy for the sensitive built heritage

The color patterns generally found on the façades of architecturally sensitive buildings have an adverse impact on their aesthetics, to the detriment of their identity and potential economic value. A quantitative and qualitative study was conducted of the perception of aesthetic decay in the limestone on a heritage building. The study assessed building aesthetics between two façade cleaning operations, conducted in 1984–1986 and 2006–2008. Based on the calculation of the final or total soiling index, by means of in situ lightness measurement and three architectural design variables, the color distribution of the façades was quantified in 2006 and a model was developed to monitor façade soiling over time. The proposed model, a tool for planning preventive façade maintenance on architecturally sensitive buildings, advocates for sustainable cleaning operations. Its premise that periodic cleaning should only be conducted in areas where the limestone is affected by aesthetic decay redounds to minimised intervention and lower building management costs.