Austrian Academy of Sciences

Elektronisches Publikationsportal der Österreichischen Akademie der Wissenschaften
Not a member yet
    51101 research outputs found

    Geburtenbarometer Wien: Analyse der konvergenten Fertilität zwischen Wien und Österreich

    Get PDF
    Das Geburtenbarometer Wien zielt darauf ab, ein aktuelles Fertilitätsmonitoring für Wien zur Verfügung zu stellen, basierend auf einem Satz jährlicher und vierteljährlicher Fruchtbarkeitsindikatoren und regelmäßigen zusammenfassenden Berichten. Die vorliegende Studie informiert über die verwendeten Daten, Methoden und Indikatoren und kontrastiert die Hauptresultate mit Daten für die anderen österreichischen Regionen und für das ganze Land. Den größten Teil des 20. Jahrhunderts hindurch lag die Fertilität in Wien weit unterhalb jener des übrigen Österreichs. Weil sich die Fruchtbarkeit in Wien deutlich zwischen den in Österreich und den im Ausland geborenen Frauen unterscheidet, werden diese Fertilitätsdifferentiale und ihr Einfluss auf die gesamten Fertilitätsmuster Wiens und Österreichs betrachtet. Zugewanderte Frauen hatten in Wien seit der Mitte der 1980er Jahre nicht nur einen schnell zunehmenden Anteil an den Gesamtgeburten und trugen folglich zu einem allmählichen Anstieg der absoluten Geburtenzahl in der Stadt bei, sondern ihre höheren Fruchtbarkeitsziffern halfen auch, die Periodenfertilitätsraten in Richtung auf die Niveaus zu bringen, die in anderen Regionen Österreichs verzeichnet werden. Die vorliegende Studie veranschaulicht die ausgeprägte Wiener Bevölkerungsdynamik, in der sich eine hohe Kinderlosigkeit und niedrige Fertilität mit einer positiven Bilanz zwischen Geburten und Sterbefällen sowie anhaltendem Bevölkerungszuwachs verbinden und die Bevölkerungstrends stark durch die direkten und indirekten Auswirkungen der Migration beeinflusst werden

    Keeping the landscape open – challenges and successful strategies in the Black Forest Biosphere Reserve. eco.mont (Journal on Protected Mountain Areas Research and Management)|eco.mont Vol. 13 special issue 2021|

    No full text
    In this policy article, we identify challenges for maintaining the Black Forest Biosphere Reserve’s diverse cultural landscape and present the efforts undertaken to address these. Set in a land-use context that is rich in tradition, featuring common pastures and an indigenous cattle breed, landscape preservation today is threatened by fundamental changes in the agricultural community as well as of land-use systems. As part of the MAB network, the UNESCO Black Forest Biosphere Reserve provides collaborative arenas to address these issues and propose action in concertation with local actors and communities. To illustrate this, we describe the ALLMENDE 2.0 applied research project, the creation of a commercialization hub for the local Hinterwälder cattle, and support for the modelling of more extensive ecologically-orientated agriculture

    Nanoscaled magnetic materials with tunable properties

    No full text
    In this thesis, severe plastic deformation by high-pressure torsion is used to produce magnetic materials with tunable properties. Magnetic tunability is ensured by using combinations of materials, which exhibit large miscibility gaps in the thermodynamical equilibrium and consist therefore of one diamagnetic element and at least one ferromagnetic element. Upon processing a considerable grain refinement and intermixing is observed for certain compositions, whereas a microstructural steady state is aimed for each composition investigated. For an understanding of the structure-property relationship in severe plastically deformed materials, a large focus of this study is on the correlation of magnetic and microstructural properties. A spin-glass state, arising in as-deformed Fe-Cu specimens, clearly demonstrates the formation of a supersaturated solid solution upon high-pressure torsion. Tiny, residual Fe-rich particles give rise to superparamagnetic behavior. The amount of the residual Fe-particles is controlled by the composition, maintaining a switching between superparamagnetism to a spin-glass state. A remarkable tunability in the magnetic properties was found by annealing treatments already at relatively low temperatures, enabling a change between superparamagnetic to single-domain and even multi-domain behavior. The replacement of Cu with Ag leads to bulk ferromagnetic properties. For the Ag-based alloys, different deformation behaviors were observed, which are traced back to differences in the mechanical properties of the alloying elements. For the Co-Cu system single-phase solid solutions with ferromagnetic properties develop, whereat large Co-contents exhibit soft magnetic properties. The magnetic moment and the coercivity in the Co-Cu system is found to be controlled by the Co-to-Cu ratio. Furthermore the coercivity is tuned by subsequent thermal treatments, whereby these alloys have been found to exhibit a remarkable thermal stability regarding the microstructure. A further improvement in terms of soft magnetic properties was achieved by substituting small amounts of Co with Fe. For larger Fe-contents, the magnetic behavior changes and a considerable large coercivity is observed

    The future of the Protestant Church: Estimates for Austria and for the Provinces of Burgenland, Carinthia and Vienna

    No full text
    Secularization and migration have substantially affected the place of the Protestant Church in the Austrian society in the last decades. The number of members has been shrinking markedly from 447 thousand members in 1971 to 278 thousand in 2018. The trend is visible across all provinces, although the magnitude is stronger in Vienna where both disaffiliation and international migration are stronger: In the capital city, the Protestant population diminished from 126 thousand to 47 thousand over the 1971-2018 period. Using population projections of membership to the Protestant Church, we look at the potential future of affiliation to the Protestant Church in Austria, and in three provinces: Burgenland, Carinthia, and Vienna from 2018 to 2048, considering different paths of fertility and disaffiliation. We also look at the impact of different scenarios regarding the composition of international migration flows on affiliation to the Protestant Church. Our findings suggest that in the absence of compensatory flows, the Protestant Church will keep shrinking unless it manages to stop disaffiliation. The projections also show that migrants, especially within mobile Europe, are a potential source of members that is at present not properly contributing to membership in Austria. According to the TREND EUROPE scenario, which is – seen from today – the most likely scenario with a continuation of declining entries and increased exits, the Protestant population in Austria would still decline from 283 thousand in 2018 to 144 thousand in 2048 (-49%). At the level of the three provinces, the decline would be faster in Vienna (-42%, from 47 to 27 thousand) than in Burgenland (-26%, from 32 to 24 thousand) and Carinthia (-37%, from 48 to 30 thousand). According to this scenario, by 2048 the Protestant population would correspond to 1.5% of the total population of Austria(1.3% in Vienna, 7.3% in Burgenland and 5.4% in Carinthia). Other scenarios reflect the potential impact of different religious composition of future migrant flows, as well as changing disaffiliation patterns. Only under the LIFT scenario, which assumes a reduction in exits by 50% and more migrants enrolling to the Protestant Church, we see an end of the haemorrhage and even an increase in the number of Protestants in Vienna

    Der Totengeist des Laius in Statius’ Thebais. Wiener Studien|Wiener Studien 134 134|

    No full text
    According to a widespread tradition, Laius was buried in Phocis after his death. Areview of the relevant passages in Statius’ Thebaid shows that the poeta doctus alludes to thisversion of the story, but he himself follows a different mythical variant: The body of Laiusremained unburied, which meant that his ghost could not cross the border river to theunderworld. In this way the denied or perverted burial, a dominant thematic concern in theThebaid, is projected back into the prehistory of the plot

    1,378

    full texts

    51,101

    metadata records
    Updated in last 30 days.
    Elektronisches Publikationsportal der Österreichischen Akademie der Wissenschaften is based in Austria
    Access Repository Dashboard
    Do you manage Open Research Online? Become a CORE Member to access insider analytics, issue reports and manage access to outputs from your repository in the CORE Repository Dashboard! 👇