Well-posedness and asymptotic behavior of a multidimensional model of morphogen transport

Morphogen transport is a biological process, occurring in the tissue of living organisms, which is a determining step in cell differentiation. We present rigorous analysis of a simple model of this process, which is a system coupling parabolic PDE with ODE. We prove existence and uniqueness of solutions for both stationary and evolution problems. Moreover we show that the solution converges exponentially to the equilibrium in $C^1\times C^0$ topology. We prove all results for arbitrary dimension of the domain. Our results improve significantly previously known results for the same model in the case of one dimensional domain

“We Are a Small Country That Has Done Enormously Lot”: The ‘Refugee Crisis’ and the Hybrid Discourse of Politicizing Immigration in Sweden

This article looks at mainstream political discourses about immigration in Sweden during the recent “refugee crisis”. It argues that different patterns of politicization of immigration have traditionally dominated in Sweden and focuses on Swedish mainstream politics wherein, as is shown, explicit focus on politicization via (previous as well as current) immigration-related policies still persists. However, as the analysis of Sweden's Social Democratic Party's Twitter discourse shows, a hybrid new discourse of politicization is now emerging. It allows political actors to legitimize immigration policy with often populist-like politicization and the use of new modes of online political communication

Brexit and the imaginary of ‘crisis’: a discourse-conceptual analysis of European news media

This article explores the discourse-conceptual linkages between ‘Brexit’ and ‘crisis’ in European news media reporting about the UK referendum on leaving the European Union of 23 June 2016. The study examines media discourse about the Brexit vote in Austria, Germany, Poland and Sweden at the transformative moment in between the pre/after vote period. The conceptually-oriented critical discourse analysis shows how Brexit was not only constructed as an imaginary or a future crisis but also how its mediated visions were made real by recontextualising elements of various past social/political/economic crises. As is shown, such a strategy of discursively amalgamating the real and the imaginary, as well as the experienced/past and the expected/future, often allowed constructing Brexit as one of the most significant, critical occurrences of post-War Europe. Through the analysis, the article aims to show how wide and diverse the importance of ‘Brexit as crisis’ has been for European news media discourse. It also emphasises that while in the UK itself–including huge part of the UK traditional media–the critical nature of Brexit was often strategically downplayed, the wider European discourse would see it as a multifaceted ‘crisis’ of huge significance to both the present and the future of the EU, wider Europe and the world

Borders, Fences, and Limits—Protecting Austria From Refugees:Metadiscursive Negotiation of Meaning in the Current Refugee Crisis

The so-called refugee crisis presents a field of discursive struggle over meanings in politics. In Austria, mediatized politics in 2015 and 2016 was dominated by metadiscursive negotiation of terminology related to building a border fence and setting a maximum limit on refugees. Both issues raised serious ideological and legal concerns and were thus largely euphemized; as responses to ever-increasing pressure from the political right, however, they were also intended as signals to voters. This article presents a discourse-historical study of the normalization of restrictive policies in the theoretical framework of border and body politics, otherness, and mediatization

Public Opinion on Migration and the Role of the Media in the Context of the “European Refugee Crisis”

This book presents an overview of European migration policy and the various institutional arrangements within and between various actors, such as local councils, local media, local economies, and local civil society initiatives. Both the role of local authorities in this policy field and their cooperation with civil society initiatives or networks are under-explored topics for research. In response, this book provides a range of detailed case studies focusing on the six main groups of national and administrative traditions in Europe: Germanic, Scandinavian, Napoleonic, Southeastern European, Central-Eastern European and Anglo-Saxon.Peer reviewe

Measurement of the diffractive structure function in deep inelastic scattering at HERA

This paper presents an analysis of the inclusive properties of diffractive deep inelastic scattering events produced in $ep$ interactions at HERA. The events are characterised by a rapidity gap between the outgoing proton system and the remaining hadronic system. Inclusive distributions are presented and compared with Monte Carlo models for diffractive processes. The data are consistent with models where the pomeron structure function has a hard and a soft contribution. The diffractive structure function is measured as a function of \xpom, the momentum fraction lost by the proton, of $\beta$, the momentum fraction of the struck quark with respect to \xpom, and of $Q^2$. The \xpom dependence is consistent with the form \xpoma where $a~=~1.30~\pm~0.08~(stat)~^{+~0.08}_{-~0.14}~(sys)$ in all bins of $\beta$ and $Q^2$. In the measured $Q^2$ range, the diffractive structure function approximately scales with $Q^2$ at fixed $\beta$. In an Ingelman-Schlein type model, where commonly used pomeron flux factor normalisations are assumed, it is found that the quarks within the pomeron do not saturate the momentum sum rule.Comment: 36 pages, latex, 11 figures appended as uuencoded fil

Observation of hard scattering in photoproduction events with a large rapidity gap at HERA

Events with a large rapidity gap and total transverse energy greater than 5 GeV have been observed in quasi-real photoproduction at HERA with the ZEUS detector. The distribution of these events as a function of the $\gamma p$ centre of mass energy is consistent with diffractive scattering. For total transverse energies above 12 GeV, the hadronic final states show predominantly a two-jet structure with each jet having a transverse energy greater than 4 GeV. For the two-jet events, little energy flow is found outside the jets. This observation is consistent with the hard scattering of a quasi-real photon with a colourless object in the proton.Comment: 19 pages, latex, 4 figures appended as uuencoded fil

"Der Balkan" in der Krone: Austria between "frontier Orientalism" and amnesiac nationalism

This article traces the “silent inscription” of (former) colonial relations in the European integration project to their re-inflection in an EU-sceptical medium. To do so, this contribution draws on a corpus of data comprising news-coverage, commentaries and readers’ letters published in Austria’s largest newspaper, the Kronen Zeitung, whose reach, influence and leanings are well-known. The analysis considers the Krone’s representations of, and discursive references to, “the Balkans” during the crises-littered period between 2009 and 2017. For analytical purposes this discussion focuses on a sub-sample of invocations of “the Balkans” in the Krone, which have appeared with growing frequency since 2015. Conceptually, the discourse-analytical notion of the topos, or argumentative structure, and anthropological literature on “identity grammars” inform the analysis. The discussion reveals continuities with Austria’s historically long-established representational regimes of South-Eastern Europe, and novel discursive features. A contemporary paternalism is shown to re-appropriate the nineteenth-century topos of Austria’s alleged “civilizing mission” and what André Gingrich (2005) has described as Central Europe’s “frontier Orientalism”. Further, preoccupations with “the Balkan-route” and its closure articulate a topos of external threats tied to recent migration flows. The article reflects on an “amnesiac nationalism”, and its post-imperial entanglements, that are currently re-shaping the European Union

Observation of Events with an Energetic Forward Neutron in Deep Inelastic Scattering at HERA

In deep inelastic neutral current scattering of positrons and protons at the center of mass energy of 300 GeV, we observe, with the ZEUS detector, events with a high energy neutron produced at very small scattering angles with respect to the proton direction. The events constitute a fixed fraction of the deep inelastic, neutral current event sample independent of Bjorken x and Q2 in the range 3 · 10-4 \u3c xBJ \u3c 6 · 10-3 and 10 \u3c Q2 \u3c 100 GeV2