Christian Doppler Laboratory for Thermoelectricity

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    Multi time-scale evaluation of high-resolution satellite-based precipitation products over northeast of Austria

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    Over the years, combinations of different methods that use multi-satellites and multi-sensors have been developed for estimating global precipitation. Recently, studies that have evaluated Integrated Multi-satellite Retrievals for GPM (IMERG) Final-Run (FR) version V-03D and other precipitation products have indicated better performance for IMERG-FR compared to other similar products in different climate regimes. This study comprehensively evaluates the two GPM-IMERG products, specifically IMERG-FR and IMERG-Real-Time (RT) late-run, against a dense station network (62 stations) in northeast Austria from mid-March 2015 to the end of January 2016 using different time-scales. Both products are examined against station data in capturing the occurrence and statistical characteristics of precipitation intensity. With regard to probability density functions (PDFs), the satellite precipitation estimate (SPE) products have detected more heavy and extreme precipitation events than the ground measurements. Both precipitation products at all time-scales, except for IMERG-RT 12- hourly and daily precipitation, capture less occurrence of precipitation than the station dataset for light precipitation. This partially explains the under-detection of precipitation events. For all time-scales, both IMERG products' CDFs (Cumulative Distribution Function) are well above that of the stations' precipitation. For lower precipitation levels, IMERG-RT is slightly below the IMERG-FR whereas IMERG-RT is above IMERG-FR at higher precipitation levels. Furthermore, for entire spectrum precipitation rates (P≥0.1 mm), 1, 3, 6-hourly, IMERGFR did not show a clear improvement of the Bias over IMERG-RT, while for 12-hourly and daily precipitation estimates, the bias in IMERG-FR has improved compared to IMERG-RT. In addition, IMERG-FR shows a considerable improvement in RMSE as compared to IMERG-RT. IMERG-FR, however, systematically underestimates moderate to extreme precipitation and overestimates light precipitation for all time scales against rain-gauges in northeast Austria. When comparing the bias, RMSE, and correlation coefficients, IMERG-FR has outperformed IMERG-RT particularly for 6-hourly, 12-hourly, and daily precipitation. Despite the general low probability of detection (POD) and threat score (TS) and the high false alarm ratio (FAR) within specified precipitation thresholds, the contingency table shows relatively acceptable values of the POD, TS and FAR for precipitation without classification

    Vorstellungsrunde und Vortrag mit Befragung : Univ.-Prof. Mag. Dr. Nikolaus Forgó

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    070292 VU Ringvorlesung mit Übung - Abbau von exzessivem Nationalismus und Vorurteilen in unserer Gesellschaft (2018W) Der Vortrag fand in diesem Rahmen am 06.12.2018 statt

    Now you see me, now you don’t: applying automated content analysis to track migrant women’s salience in German news

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    Reading media headlines and articles about migration, one quickly gets the impression that the media discourse is focussed on migrant men. To investigate to what extend this perception actually holds true, in this study we examine the visibility of gender in media coverage about migrants. We present a validated keyword-based dictionary that allows for automatic and reliable measurement of migrants’ salience (i.e., women, men) in German news coverage. A salience analysis of German migration-related news coverage published between January 2003 and December 2017 is undertaken. We investigate the salience of migrant women in migration news over time, their salience relative to migrant men, as well as across media outlets with different political leanings. We find that migrant women are salient in 12 to 26 per cent of migration-related news articles, whereas migrant men are referred to in almost all migration-related articles. We contextualize these results with actual immigration statistics, discuss the problematic nature of the findings, and weigh the opportunities for and limitations of automatically tracking women migrants in the media against each other.© 2020 The Author(s

    Caroline Winkler: Video documentation of selecting a selfie on the phone (2018)

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    Caroline Winkler: Video documentation of selecting a selfie on the phone, created in a course taught by Simon Ganahl at Vorarlberg University of Applied Sciences in 2018

    Orientalizing architecture in northern Bosnia under Habsburg rule: Exaggerating alterity as a means of cohesion?

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    This paper offers preliminary insights into the phenomenality of Orientalizing styles of architecture in Bosnia‐Herzegovina in the period of Austro‐Hungarian rule. It examines in some detail three buildings in Banja Luka and Gradiška, with brief detours to Brčko, Dubica, and Šamac, focusing on the problem of decision‐making in the planning and design process. This discussion is aided by plan material discovered in the relevant archives as well as contemporary periodicals. The inquiry will conclude with ruminations on this phenomenon’s geography: Did Orientalizing architecture in Bosnia’s northern region, bordering Croatia‐Slavonia, carry different meanings than in Sarajevo and other inland metropolises

    Fokus Jugend 2020. Ein Überblick in Zahlen

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    „Fokus Jugend“ bietet für Personen, die in den Bereichen Jugendpolitik und Jugendarbeit tätig sind, die wesentlichsten Zahlen zur Situation der Jugend in Österreich und macht Trends in den Bereichen Bevölkerungsstatistik, Migration, Bildung und Ausbildung, Internetnutzung, Arbeitswelt sowie Gesundheit und Lebensbedingungen sichtbar

    The relationship between existential well-being and mood-related psychiatric burden in Indian young adults with attachment deficits: a cross-cultural validation study

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    Background: Attachment and spirituality are thought to have deep evolutionary roots but are always interpreted within the framework of culture, religion and personal beliefs. While insecure attachment has been observed to be positively related with psychopathology, a positive mental health effect has often been described for spirituality. To examine the cross-cultural validation of previous research focused on Austrian young adults with Western socialization, we attempt to replicate our study examining the influence spirituality has on the connection between insecure attachment and mood-related psychiatric burden with Indian young adults. Methods: We investigated Avoidant (AV) and Anxious (AX) Attachment (ECR-RD), Religious (RWB) and Existential (EWB) Well-Being (MI-RSWB), and mood-related psychiatric burden (Anxiety, Depression, Somatization; BSI-18) in 443 (31% female) Indian young adults (age range: 18–30 years) with a Hindu upbringing. Results: Compared to young adults with a Roman Catholic upbringing in a Western socialization, Indian participants did not differ in AX and EWB but scored higher in mood-related psychiatric burden (eta2 = .04), AV (eta2 = .14), as well as RWB (eta2 = .28; all p < .01). As in previous research only AX (β = .40) positively predicted mood-related psychiatric burden (ΔR2 = .15, all p < .01), while EWB was an additional negative predictor (β = −.11, p < .05). Conclusions: Our findings emphasize the universal importance of attachment and spirituality for mental health as well as the potential influence of socialization on their development. Furthermore, they underline that Existential Well-Being – including hope for a better future, forgiveness, and the experience of sense and meaning – appears to have a compensating effect on the relation between insecure attachment and impaired mental health.© The Author(s) 202

    The Mali-Federation: A Pan-African Endeavour? Reflections on Pan-Africanism and Nationalism in Times of Decolonization

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    The idea of joint political forces of Senegal and Soudan into a federation to enforce anti-colonial demands in 1959 seems to be the incarnation of pan-African nationalism. Considering the predominance of nation-statist ideas in Franco-African relations post-1945, federating looks like the anti-thesis to nation-statist agitation. I will argue that the two levels of nationalism, the pan- African level and the nation-state level, are not necessarily opposed diametrically to each other in the Mali federation, but are linked inextricably. My analysis focuses on two dimensions: the visionary dimension of the Mali Federation and its concrete political realisation. Initially, the federalist vision of Senegal’s Léopold Sédar Senghor and Soudan’s Modibo Keita aimed for an AOF-wide federation within the colonial framework. However, in the late 1950s, the pan-African vision became an indispensable tool for achieving national independence. The realisation of the Federation, however, was constrained by the nation-statist level of nationalism, its collapse being a case in point

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