This article constitutes a big data study of Twitter during the peak of the so-called refugee crisis in the period between October 2015 and May 2016. The article analyzed almost 7.5 million tweets collected through hashtags such as #refugee, #refugeecrisis, # flüchtling, and others. Theoretically, the article draws on concepts such as hybrid media, affective publics, networked framing, and voice. In the context of any increasingly hybrid media, we ask what are the frames on refugees that emerge on Twitter, who are the emerging elites, and to what extent do these frames represent alternative voices. Overall, the findings indicate that overall, the dominant frames remain the same, revolving around security and safety on one hand and humanitarianism on the other. The study also identified some explicitly racist hashtags linked to some of the security and safety frames. Elite politicians, media, and non-governmental organizations (NGOs) represent the most prominent actors. In general, the refugee issue on Twitter was found to be subsumed and instrumentalized by political interests. Affect and networked frames are captured by and within a specific political position that we found revolving around the personage of Donald Trump and the increasingly strident anti-immigration voices in Europe. In these terms, the results indicate that Twitter’s contribution to the refugee debate is profoundly equivocal.

The purpose of this paper is to present a brief review of the various streams of constructivism in studies of education, society, science and technology. It is intended to present a number of answers to the question (what really is constructivism?) in the context of various disciplines from the humanities and the sciences (both natural and social). In particular the discussion will focus on four varieties of constructivism: philosophical, cybernetic, educational, and sociological constructivism.

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The Cauchy problem x' = fit, x) , x(0) = X-, is considered in a non-reflexive Banach space E , where / is weakly continuous.A local existence theorem is proved using the measure of weak noncompactness.Let E be a real Banach space and E* its dual. Norms in both E and E* are denoted by ||*|| . Let x. € E and a, b > 0 . We setWe consider the ordinary differential equation in E ,If f € Cilx-D, E) , local existence theorems for (l) can be proved through compactness type conditions, such as / being a-Lipschitzian, where a denotes the measure of non-compactness (for example, [5]).It is our purpose to examine the case that / is weakly continuous and a)-Lipschitzian, where w is the measure of noncompactness in the weak topology (as introduced by De Blasi [4]). To be specific, given any bounded subset A of a Banach space X , we define

ABSTRACT. Our aim here is to plead for the significance of cultural considerations of overlapping inter-attitudinal patterns right next to well established structural considerations of interorganizational networks based on overlapping membership patterns. In particular, we examine how the analytic methodological incorporation of cultural attributes or attitudes might enhance our understanding of structural community categorizations in interorganizational networks. For this purpose, we analyze data of the International Peace Protest Survey (IPPS) on the world-wide peace protests of February, 15, 2003, in order to manifest the added value offered by the consideration of the culturestructure duality in participation studies.